mirror of
https://github.com/ganelson/inform.git
synced 2024-07-08 01:54:21 +03:00
1117 lines
187 KiB
HTML
1117 lines
187 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<head>
|
|
<title>S/st</title>
|
|
<meta name="viewport" content="width=device-width initial-scale=1">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<meta http-equiv="Content-Language" content="en-gb">
|
|
<link href="../inweb.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
</head>
|
|
<body>
|
|
<nav role="navigation">
|
|
<h1><a href="../webs.html">Sources</a></h1>
|
|
<ul>
|
|
<li><a href="../compiler.html">compiler</a></li>
|
|
<li><a href="../other.html">other tools</a></li>
|
|
<li><a href="../extensions.html"><b>extensions and kits</b></a></li>
|
|
<li><a href="../units.html">unit test tools</a></li>
|
|
/ul>
|
|
<h2>Extensions</h2>
|
|
<ul>
|
|
<li><a href="../basic_inform/index.html">Basic Inform</a></li>
|
|
<li><a href="../standard_rules/index.html">Standard Rules</a></li>
|
|
</ul>
|
|
<h2>Kits</h2>
|
|
<ul>
|
|
<li><a href="../BasicInformKit/index.html">BasicInformKit</a></li>
|
|
<li><a href="../BasicInformExtrasKit/index.html">BasicInformExtrasKit</a></li>
|
|
<li><a href="../CommandParserKit/index.html">CommandParserKit</a></li>
|
|
<li><a href="../EnglishLanguageKit/index.html">EnglishLanguageKit</a></li>
|
|
<li><a href="../WorldModelKit/index.html">WorldModelKit</a></li>
|
|
</ul>
|
|
|
|
|
|
</nav>
|
|
<main role="main">
|
|
|
|
<!--Weave of 'S/tt' generated by 7-->
|
|
<ul class="crumbs"><li><a href="../webs.html">Source</a></li><li><a href="../extensions.html">Kits</a></li><li><a href="index.html">BasicInformKit</a></li><li><b>Tables Template</b></li></ul><p class="purpose">To read, write, search and allocate rows in the Table data structure.</p>
|
|
|
|
<ul class="toc"><li><a href="#SP1">§1. Format</a></li><li><a href="#SP2">§2. Find Column</a></li><li><a href="#SP3">§3. Number of Rows</a></li><li><a href="#SP4">§4. Blanks</a></li><li><a href="#SP5">§5. Masks</a></li><li><a href="#SP6">§6. Testing Blankness</a></li><li><a href="#SP7">§7. Force Entry Blank</a></li><li><a href="#SP8">§8. Force Entry Non-Blank</a></li><li><a href="#SP9">§9. Swapping Blank Bits</a></li><li><a href="#SP10">§10. Moving Blank Bits Down</a></li><li><a href="#SP11">§11. Table Row Corresponding</a></li><li><a href="#SP12">§12. Table Look Up Corresponding Row</a></li><li><a href="#SP13">§13. Table Look Up Entry</a></li><li><a href="#SP14">§14. Blank Rows</a></li><li><a href="#SP15">§15. Random Row</a></li><li><a href="#SP16">§16. Swap Rows</a></li><li><a href="#SP17">§17. Compare Rows</a></li><li><a href="#SP18">§18. Move Row Down</a></li><li><a href="#SP19">§19. Shuffle</a></li><li><a href="#SP20">§20. Next Row</a></li><li><a href="#SP21">§21. Move Blanks to Back</a></li><li><a href="#SP22">§22. Sort</a></li><li><a href="#SP23">§23. Print Table to File</a></li><li><a href="#SP24">§24. Read Table from File</a></li><li><a href="#SP25">§25. Debugging</a></li></ul><hr class="tocbar">
|
|
|
|
<p class="inwebparagraph"><a id="SP1"></a><b>§1. Format. </b>The I7 Table structure is not to be confused with the I6 <code class="display"><span class="extract">table</span></code> form of
|
|
array: it is essentially a two-dimensional array which has some metadata
|
|
at the top of each column.
|
|
</p>
|
|
|
|
<p class="inwebparagraph">The run-time representation for a Table is the address <code class="display"><span class="extract">T</span></code> of an I6 <code class="display"><span class="extract">table</span></code>
|
|
array: that is, <code class="display"><span class="extract">T-->0</span></code> holds the number of columns (which is at most 99)
|
|
and <code class="display"><span class="extract">T-->i</span></code> is the address of column number <code class="display"><span class="extract">i</span></code>. Columns are therefore
|
|
numbered from 1 to <code class="display"><span class="extract">T-->0</span></code>, but they are also identified by an ID number of
|
|
100 or more, with each different column name having its own ID number.
|
|
(This is so that multiple tables can share columns with the same name, and
|
|
correlate them: it also means that NI's type-checking machinery can know
|
|
the kind of value of a table entry from the name of the column alone.)
|
|
</p>
|
|
|
|
<p class="inwebparagraph">Each column <code class="display"><span class="extract">C</span></code> is also a <code class="display"><span class="extract">table</span></code> array, with <code class="display"><span class="extract">C-->1</span></code> holding the unique
|
|
ID number for the column's name, <code class="display"><span class="extract">C-->2</span></code> holding the blank entry flags
|
|
offset and <code class="display"><span class="extract">C-->3</span></code> up to <code class="display"><span class="extract">C-->(C-->0)</span></code> holding the entries.
|
|
</p>
|
|
|
|
<p class="inwebparagraph"><code class="display"><span class="extract">C-->1</span></code> also contains seven upper bit flags. These are also defined in
|
|
"Tables.w" in the NI source, and the values must agree.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TB_COLUMN_REAL</span><span class="plain"> </span><span class="constant">$8000</span><span class="plain">;</span>
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TB_COLUMN_SIGNED</span><span class="plain"> </span><span class="constant">$4000</span><span class="plain">;</span>
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TB_COLUMN_TOPIC</span><span class="plain"> </span><span class="constant">$2000</span><span class="plain">;</span>
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TB_COLUMN_DONTSORTME</span><span class="plain"> </span><span class="constant">$1000</span><span class="plain">;</span>
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TB_COLUMN_NOBLANKBITS</span><span class="plain"> </span><span class="constant">$0800</span><span class="plain">;</span>
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TB_COLUMN_CANEXCHANGE</span><span class="plain"> </span><span class="constant">$0400</span><span class="plain">;</span>
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain"> </span><span class="constant">$0200</span><span class="plain">;</span>
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TB_COLUMN_NUMBER</span><span class="plain"> </span><span class="constant">$01ff</span><span class="plain">; </span><span class="comment">! Mask to remove upper bit flags</span>
|
|
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">COL_HSIZE</span><span class="plain"> </span><span class="constant">2</span><span class="plain">; </span><span class="comment">! Column header size: two words (ID/flags, blank bits)</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP2"></a><b>§2. Find Column. </b>Columns can be referenced either by their physical column numbers — from 1
|
|
to, potentially, 99 — or else by unique ID numbers associated with column
|
|
names. For instance, if a table has a column called "liquid capacity",
|
|
then all references to its "liquid capacity entry" are via the ID number
|
|
associated with this column name, which will be >= 100 and on the other
|
|
hand <= <code class="display"><span class="extract">TB_COLUMN_NUMBER</span></code>. At present, this is only 511, so there can
|
|
be at most 411 different column names across all the tables present in the
|
|
source text. (It is just about possible to imagine this being a problem on
|
|
a very large work, so we will probably one day revise the above to make
|
|
use of the larger word-size in Glulx and so raise this limit. But so far
|
|
nobody has got even close to it.)
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableFindCol</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">f</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">no_cols</span><span class="plain"> </span><span class="identifier">n</span><span class="plain">;</span>
|
|
<span class="identifier">no_cols</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">-->0;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1: </span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">no_cols</span><span class="plain">: </span><span class="identifier">i</span><span class="plain">++)</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> == ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">i</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NUMBER</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain">) { </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOCOL</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">); </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">0</span><span class="plain">; }</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="constant">0</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP3"></a><b>§3. Number of Rows. </b>The columns in a table can be assumed all to have the same height (i.e.,
|
|
number of rows): thus the number of rows in <code class="display"><span class="extract">T</span></code> can be calculated by
|
|
looking at column 1, thus...
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableRows</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">first_col</span><span class="plain">;</span>
|
|
<span class="identifier">first_col</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">-->1; </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">first_col</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">0</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> (</span><span class="identifier">first_col</span><span class="plain">-->0) </span><span class="constant">-</span><span class="plain"> </span><span class="identifier">COL_HSIZE</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP4"></a><b>§4. Blanks. </b>Each table entry is stored in a single word in memory: indeed, column <code class="display"><span class="extract">C</span></code>
|
|
row <code class="display"><span class="extract">R</span></code> is at address <code class="display"><span class="extract">(T-->C)-->(R+COL_HSIZE)</span></code>.
|
|
</p>
|
|
|
|
<p class="inwebparagraph">But this is not sufficient storage in all cases, because each entry can be
|
|
either a value or can be designated "blank". Since, for some columns at
|
|
least, the possible values include every number, we find that we have to
|
|
store 2^{16}+1 possibilities given only a 16-bit memory word. (Well, or
|
|
2^{32}+1 with a 32-bit word, depending on the virtual machine.) This
|
|
cannot be done.
|
|
</p>
|
|
|
|
<p class="inwebparagraph">We therefore need, at least in some cases, an additional bit of storage for
|
|
each table entry which indicates whether or not it is blank. If we provided
|
|
such a bit for every table entry, that would be a fairly simple system to
|
|
implement, but it would also be wasteful of memory, with an overhead of
|
|
about 5\% in practice: and memory in the virtual machine is in very short
|
|
supply. The reason such a system would be wasteful is that many columns
|
|
are known to hold values which are in a narrow range; for instance, a time
|
|
of day cannot exceed 1440, and there will never be more than 10,000 rulebooks
|
|
or scenes, and so on. For such columns it would be more efficient and indeed
|
|
faster to indicate blankness by using an exceptional value in the memory
|
|
cell which is such that it cannot be valid for the kind of value stored
|
|
in the column. We therefore provide a "blanks bitmap" for only some
|
|
columns.
|
|
</p>
|
|
|
|
<p class="inwebparagraph">This leads us to define the following dummy value, chosen so that it is
|
|
both impossible for most kinds of value — which is easy to arrange — and
|
|
also unlikely for even those kinds of value where it is legal. For
|
|
instance, -1 would be impossible for enumerative kinds of value such as
|
|
rulebooks and scenes, but it would be a poor choice for the dummy value
|
|
because it occurs pretty often as an integer. Instead we use the constant
|
|
<code class="display"><span class="extract">IMPROBABLE_VALUE</span></code>, whose value depends on the word size of the virtual
|
|
machine, and which is declared in "Definitions.i6t".
|
|
</p>
|
|
|
|
<p class="inwebparagraph">An entry is therefore blank if and only if either
|
|
</p>
|
|
|
|
<ul class="items"><li>(a) its column has no blanks bitmap and the stored entry is <code class="display"><span class="extract">TABLE_NOVALUE</span></code>, or
|
|
</li><li>(b) its column does have a blanks bitmap, the blanks bit for this entry is set,
|
|
and the stored entry is also <code class="display"><span class="extract">TABLE_NOVALUE</span></code>.
|
|
</li></ul>
|
|
<p class="inwebparagraph">To look up the blanks bitmap is a little slower than to access the stored
|
|
entry directly. Most of the time, entries accessed will be non-blank: so it
|
|
is efficient to have a system where we can quickly determine this. If we
|
|
look at the entry and find that it is not <code class="display"><span class="extract">TABLE_NOVALUE</span></code>, then we know
|
|
it is not a blank. If we find that it is <code class="display"><span class="extract">TABLE_NOVALUE</span></code>, on the other
|
|
hand, then quite often the column has no blanks bitmap and again we have
|
|
a quick answer: it's blank. Only if the column also has a blanks bitmap do
|
|
we need to check that we haven't got a false negative. (The more improbable
|
|
<code class="display"><span class="extract">TABLE_NOVALUE</span></code> is as a stored value, the rarer it is that we have to
|
|
check the blanks bitmap for a non-blank entry.)
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="reserved">Constant</span><span class="plain"> </span><span class="identifier">TABLE_NOVALUE</span><span class="plain"> = </span><span class="identifier">IMPROBABLE_VALUE</span><span class="plain">;</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP5"></a><b>§5. Masks. </b>The blanks bitmaps are stored as bytes; we therefore need a quick way to
|
|
test or set whether bit number i of a byte is zero, where 0<= i<= 7.
|
|
I6 provides no very useful operators here, whereas memory lookup is cheap,
|
|
so we use two arrays of bitmaps:
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="reserved">Array</span><span class="plain"> </span><span class="identifier">CheckTableEntryIsBlank_LU</span>
|
|
<span class="constant">-</span><span class="plain">> </span><span class="constant">$$00000001</span>
|
|
<span class="constant">$$00000010</span>
|
|
<span class="constant">$$00000100</span>
|
|
<span class="constant">$$00001000</span>
|
|
<span class="constant">$$00010000</span>
|
|
<span class="constant">$$00100000</span>
|
|
<span class="constant">$$01000000</span>
|
|
<span class="constant">$$10000000</span><span class="plain">;</span>
|
|
<span class="reserved">Array</span><span class="plain"> </span><span class="identifier">CheckTableEntryIsNonBlank_LU</span>
|
|
<span class="constant">-</span><span class="plain">> </span><span class="constant">$$11111110</span>
|
|
<span class="constant">$$11111101</span>
|
|
<span class="constant">$$11111011</span>
|
|
<span class="constant">$$11110111</span>
|
|
<span class="constant">$$11101111</span>
|
|
<span class="constant">$$11011111</span>
|
|
<span class="constant">$$10111111</span>
|
|
<span class="constant">$$01111111</span><span class="plain">;</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP6"></a><b>§6. Testing Blankness. </b>The following routine is the one which checks that there is no false negative:
|
|
it should be used when we know that the table entry is <code class="display"><span class="extract">TABLE_NOVALUE</span></code>
|
|
and we need to check the blank bit, if there is one, to make sure the entry
|
|
is indeed blank.
|
|
</p>
|
|
|
|
<p class="inwebparagraph">The second word in the column table header, <code class="display"><span class="extract">C-->2</span></code>, holds the address of the
|
|
blanks bitmap: this in turn contains one bit for each row, starting with the
|
|
least significant bit of the first byte. If the table contains a number of
|
|
rows which isn't a multiple of 8, the spare bits at the end of the last byte
|
|
in the blanks bitmap are wasted, but this is an acceptable overhead in
|
|
practice.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">row</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">at</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain"> = </span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) ~= </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) {</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">"*** CTEIB on nonblank value "</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">, </span><span class="string">" "</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="string">" "</span><span class="plain">, </span><span class="identifier">row</span><span class="plain">, </span><span class="string">" ***^"</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NOBLANKBITS</span><span class="plain">) </span><span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="identifier">row</span><span class="plain">--;</span>
|
|
<span class="identifier">at</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + (</span><span class="identifier">row</span><span class="plain">/8);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">row</span><span class="plain">%8))) </span><span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP7"></a><b>§7. Force Entry Blank. </b>We blank a table cell by storing <code class="display"><span class="extract">TABLE_NOVALUE</span></code> in its entry word and
|
|
also setting the relevant bit in the blanks bitmap, if there is one.
|
|
</p>
|
|
|
|
<p class="inwebparagraph">We need to be careful if the column holds a kind of value where values are
|
|
pointers to blocks of allocated memory, because if so then overwriting such
|
|
a value might lead to a memory leak. So in such cases we call <code class="display"><span class="extract">BlkValueFree</span></code>
|
|
to free the memory block. (Note that each memory block is pointed to by one
|
|
and only one I7 value at any given time: we are using them as values, not
|
|
pointers to values. So if this reference is deleted, it's by definition the
|
|
only one.) <code class="display"><span class="extract">TABLE_NOVALUE</span></code> is chosen such that it cannot be an address
|
|
of a memory block, which is convenient here. (The value 0 means "no memory
|
|
block allocated yet".)
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">ForceTableEntryBlank</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">row</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">at</span><span class="plain"> </span><span class="identifier">oldv</span><span class="plain"> </span><span class="identifier">flags</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain"> = </span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="identifier">flags</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1;</span>
|
|
<span class="identifier">oldv</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">flags</span><span class="plain"> & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">) && (</span><span class="identifier">oldv</span><span class="plain"> ~= </span><span class="constant">0</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">))</span>
|
|
<span class="identifier">BlkValueFree</span><span class="plain">(</span><span class="identifier">oldv</span><span class="plain">);</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) = </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">flags</span><span class="plain"> & </span><span class="identifier">TB_COLUMN_NOBLANKBITS</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="identifier">row</span><span class="plain">--;</span>
|
|
<span class="identifier">at</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + (</span><span class="identifier">row</span><span class="plain">/8);</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) = (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) | (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">row</span><span class="plain">%8));</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP8"></a><b>§8. Force Entry Non-Blank. </b>To unblank a cell, we need to clear the relevant bit in the bitmap. We then
|
|
go on to write a new value in to the entry — thus overwriting the
|
|
<code class="display"><span class="extract">TABLE_NOVALUE</span></code> value — but that isn't done here; the expectation is
|
|
that whoever calls this routine is just about to write a new entry anyway.
|
|
</p>
|
|
|
|
<p class="inwebparagraph">The exception is again for columns holding a kind of value pointing to a
|
|
memory block, where we create a suitable initialised but uninteresting
|
|
memory block for the KOV in question, and set the entry to that.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">ForceTableEntryNonBlank</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">row</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">at</span><span class="plain"> </span><span class="identifier">oldv</span><span class="plain"> </span><span class="identifier">flags</span><span class="plain"> </span><span class="identifier">tc</span><span class="plain"> </span><span class="identifier">kov</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NOBLANKBITS</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="identifier">flags</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1;</span>
|
|
<span class="identifier">oldv</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">flags</span><span class="plain"> & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">) &&</span>
|
|
<span class="plain">(</span><span class="identifier">oldv</span><span class="plain"> == </span><span class="constant">0</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">)) {</span>
|
|
<span class="identifier">kov</span><span class="plain"> = </span><span class="identifier">UNKNOWN_TY</span><span class="plain">;</span>
|
|
<span class="identifier">tc</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NUMBER</span><span class="plain">;</span>
|
|
<span class="identifier">kov</span><span class="plain"> = </span><span class="identifier">TC_KOV</span><span class="plain">(</span><span class="identifier">tc</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">kov</span><span class="plain"> ~= </span><span class="identifier">UNKNOWN_TY</span><span class="plain">) {</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) = </span><span class="identifier">BlkValueCreate</span><span class="plain">(</span><span class="identifier">kov</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="identifier">row</span><span class="plain">--;</span>
|
|
<span class="identifier">at</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + (</span><span class="identifier">row</span><span class="plain">/8);</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) = (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsNonBlank_LU</span><span class="plain">->(</span><span class="identifier">row</span><span class="plain">%8));</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP9"></a><b>§9. Swapping Blank Bits. </b>When sorting a table, we obviously need to swap rows from time to time; if
|
|
any of its columns have blanks bitmaps, then the relevant bits in them
|
|
need to be swapped to match, and the following routine performs this operation
|
|
for two rows in a given column.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableSwapBlankBits</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">row1</span><span class="plain"> </span><span class="identifier">row2</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">at1</span><span class="plain"> </span><span class="identifier">at2</span><span class="plain"> </span><span class="identifier">bit1</span><span class="plain"> </span><span class="identifier">bit2</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NOBLANKBITS</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="identifier">row1</span><span class="plain">--;</span>
|
|
<span class="identifier">at1</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + (</span><span class="identifier">row1</span><span class="plain">/8);</span>
|
|
<span class="identifier">row2</span><span class="plain">--;</span>
|
|
<span class="identifier">at2</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + (</span><span class="identifier">row2</span><span class="plain">/8);</span>
|
|
<span class="identifier">bit1</span><span class="plain"> = ((</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at1</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">row1</span><span class="plain">%8)));</span>
|
|
<span class="identifier">bit2</span><span class="plain"> = ((</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at2</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">row2</span><span class="plain">%8)));</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bit1</span><span class="plain">) </span><span class="identifier">bit1</span><span class="plain"> = </span><span class="reserved">true</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bit2</span><span class="plain">) </span><span class="identifier">bit2</span><span class="plain"> = </span><span class="reserved">true</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bit1</span><span class="plain"> == </span><span class="identifier">bit2</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bit1</span><span class="plain">) {</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at1</span><span class="plain">)</span>
|
|
<span class="plain">= (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at1</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsNonBlank_LU</span><span class="plain">->(</span><span class="identifier">row1</span><span class="plain">%8));</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at2</span><span class="plain">)</span>
|
|
<span class="plain">= (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at2</span><span class="plain">) | (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">row2</span><span class="plain">%8));</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at1</span><span class="plain">)</span>
|
|
<span class="plain">= (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at1</span><span class="plain">) | (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">row1</span><span class="plain">%8));</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at2</span><span class="plain">)</span>
|
|
<span class="plain">= (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at2</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsNonBlank_LU</span><span class="plain">->(</span><span class="identifier">row2</span><span class="plain">%8));</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP10"></a><b>§10. Moving Blank Bits Down. </b>Another common table operation is to compress it by moving all the blank
|
|
rows down to the bottom, so that non-blank rows occur in a contiguous block
|
|
at the top: this means table sorting can be done without having to refer
|
|
continually to the blanks bitmaps. The following operation is useful for
|
|
keeping the blanks bitmaps up to date when blank rows are moved down.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableMoveBlankBitsDown</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">row1</span><span class="plain"> </span><span class="identifier">row2</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">at</span><span class="plain"> </span><span class="identifier">atp1</span><span class="plain"> </span><span class="identifier">bit</span><span class="plain"> </span><span class="identifier">rx</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NOBLANKBITS</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="identifier">row1</span><span class="plain">--; </span><span class="identifier">row2</span><span class="plain">--;</span>
|
|
<span class="comment">! Read blank bit for row1:</span>
|
|
<span class="identifier">at</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + (</span><span class="identifier">row1</span><span class="plain">/8);</span>
|
|
<span class="identifier">bit</span><span class="plain"> = ((</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">row1</span><span class="plain">%8)));</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bit</span><span class="plain">) </span><span class="identifier">bit</span><span class="plain"> = </span><span class="reserved">true</span><span class="plain">;</span>
|
|
<span class="comment">! Loop through, setting each blank bit to the next:</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">rx</span><span class="plain">=</span><span class="identifier">row1</span><span class="plain">:</span><span class="identifier">rx</span><span class="plain"><</span><span class="identifier">row2</span><span class="plain">:</span><span class="identifier">rx</span><span class="plain">++) {</span>
|
|
<span class="identifier">atp1</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + ((</span><span class="identifier">rx</span><span class="plain">+1)/8);</span>
|
|
<span class="identifier">at</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + (</span><span class="identifier">rx</span><span class="plain">/8);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">atp1</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->((</span><span class="identifier">rx</span><span class="plain">+1)%8))) {</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">)</span>
|
|
<span class="plain">= (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) | (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">rx</span><span class="plain">%8));</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">)</span>
|
|
<span class="plain">= (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsNonBlank_LU</span><span class="plain">->(</span><span class="identifier">rx</span><span class="plain">%8));</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="comment">! Write bit to blank bit for row2:</span>
|
|
<span class="identifier">at</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->2) + (</span><span class="identifier">row2</span><span class="plain">/8);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bit</span><span class="plain">) {</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">)</span>
|
|
<span class="plain">= (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) | (</span><span class="identifier">CheckTableEntryIsBlank_LU</span><span class="plain">->(</span><span class="identifier">row2</span><span class="plain">%8));</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="plain">(</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">)</span>
|
|
<span class="plain">= (</span><span class="identifier">TB_Blanks</span><span class="plain">-></span><span class="identifier">at</span><span class="plain">) & (</span><span class="identifier">CheckTableEntryIsNonBlank_LU</span><span class="plain">->(</span><span class="identifier">row2</span><span class="plain">%8));</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP11"></a><b>§11. Table Row Corresponding. </b><code class="display"><span class="extract">TableRowCorr(T, C, V)</span></code> returns the first row on which value <code class="display"><span class="extract">V</span></code> appears in
|
|
column <code class="display"><span class="extract">C</span></code> of table <code class="display"><span class="extract">T</span></code>, or prints an error if it doesn't.
|
|
</p>
|
|
|
|
<p class="inwebparagraph"><code class="display"><span class="extract">ExistsTableRowCorr(T, C, V)</span></code> returns the first row on which <code class="display"><span class="extract">V</span></code> appears in
|
|
column <code class="display"><span class="extract">C</span></code> of table <code class="display"><span class="extract">T</span></code>, or 0 if <code class="display"><span class="extract">V</span></code> does not occur at all. If the column
|
|
is a topic, then we match the entry as a snippet against the value as a
|
|
general parsing routine.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableRowCorr</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">lookup_value</span><span class="plain"> </span><span class="identifier">lookup_col</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">f</span><span class="plain"> </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="reserved">true</span><span class="plain">);</span>
|
|
<span class="identifier">lookup_col</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">;</span>
|
|
<span class="identifier">j</span><span class="plain"> = </span><span class="identifier">lookup_col</span><span class="plain">-->0 </span><span class="constant">-</span><span class="plain"> </span><span class="identifier">COL_HSIZE</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">) </span><span class="identifier">f</span><span class="plain">=1;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain">) {</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">j</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="identifier">lookup_col</span><span class="plain">-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) &&</span>
|
|
<span class="plain">(</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">))) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">v</span><span class="plain">, </span><span class="identifier">lookup_value</span><span class="plain">) == </span><span class="constant">0</span><span class="plain">)</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">j</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">lookup_value</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) &&</span>
|
|
<span class="plain">(</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">))) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">lookup_col</span><span class="plain">-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) == </span><span class="identifier">lookup_value</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOCORR</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">ExistsTableRowCorr</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">entry</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">k</span><span class="plain"> </span><span class="identifier">v</span><span class="plain"> </span><span class="identifier">f</span><span class="plain"> </span><span class="identifier">kov</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="identifier">f</span><span class="plain">=0;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_TOPIC</span><span class="plain">) </span><span class="identifier">f</span><span class="plain">=1;</span>
|
|
<span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">) </span><span class="identifier">f</span><span class="plain">=2;</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">k</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="identifier">v</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">))) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="reserved">switch</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain">) {</span>
|
|
<span class="constant">1</span><span class="plain">: </span><span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain">)(</span><span class="identifier">entry</span><span class="plain">/100, </span><span class="identifier">entry</span><span class="plain">%100) ~= </span><span class="identifier">GPR_FAIL</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="constant">2</span><span class="plain">: </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">v</span><span class="plain">, </span><span class="identifier">entry</span><span class="plain">) == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="reserved">default</span><span class="plain">: </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">entry</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="comment">! print "Giving up^";</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="constant">0</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP12"></a><b>§12. Table Look Up Corresponding Row. </b><code class="display"><span class="extract">TableLookUpCorr(T, C1, C2, V)</span></code> finds the first row on which value <code class="display"><span class="extract">V</span></code>
|
|
appears in column <code class="display"><span class="extract">C2</span></code>, and returns the corresponding value in <code class="display"><span class="extract">C1</span></code>, or
|
|
prints an error if the value <code class="display"><span class="extract">V</span></code> cannot be found or has no corresponding
|
|
value in <code class="display"><span class="extract">C1</span></code>.
|
|
</p>
|
|
|
|
<p class="inwebparagraph"><code class="display"><span class="extract">ExistsTableLookUpCorr(T, C1, C2, V)</span></code> returns <code class="display"><span class="extract">true</span></code> if the operation
|
|
<code class="display"><span class="extract">TableLookUpCorr(T, C1, C2, V)</span></code> can be done, <code class="display"><span class="extract">false</span></code> otherwise.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableLookUpCorr</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col1</span><span class="plain"> </span><span class="identifier">col2</span><span class="plain"> </span><span class="identifier">lookup_value</span><span class="plain"> </span><span class="identifier">write_flag</span><span class="plain"> </span><span class="identifier">write_value</span><span class="plain"> </span><span class="identifier">cola1</span><span class="plain"> </span><span class="identifier">cola2</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">v</span><span class="plain"> </span><span class="identifier">f</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col1</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col1</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col1</span><span class="plain">, </span><span class="reserved">true</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col2</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col2</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col2</span><span class="plain">, </span><span class="reserved">true</span><span class="plain">);</span>
|
|
<span class="identifier">cola1</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col1</span><span class="plain">;</span>
|
|
<span class="identifier">cola2</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col2</span><span class="plain">;</span>
|
|
<span class="identifier">j</span><span class="plain"> = </span><span class="identifier">cola2</span><span class="plain">-->0;</span>
|
|
<span class="identifier">f</span><span class="plain">=0;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col2</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">) </span><span class="identifier">f</span><span class="plain">=1;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col2</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_TOPIC</span><span class="plain">) </span><span class="identifier">f</span><span class="plain">=2;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1+</span><span class="identifier">COL_HSIZE</span><span class="plain">:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">j</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="identifier">cola2</span><span class="plain">--></span><span class="identifier">i</span><span class="plain">;</span>
|
|
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col2</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">-</span><span class="identifier">COL_HSIZE</span><span class="plain">))) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain"> == </span><span class="constant">1</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">v</span><span class="plain">, </span><span class="identifier">lookup_value</span><span class="plain">) ~= </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain"> == </span><span class="constant">2</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain">)(</span><span class="identifier">lookup_value</span><span class="plain">/100, </span><span class="identifier">lookup_value</span><span class="plain">%100) == </span><span class="identifier">GPR_FAIL</span><span class="plain">) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">v</span><span class="plain"> ~= </span><span class="identifier">lookup_value</span><span class="plain">) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">write_flag</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">write_flag</span><span class="plain"> == </span><span class="constant">4</span><span class="plain">) </span><span class="identifier">ForceTableEntryBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col1</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">-</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">else</span><span class="plain"> </span><span class="identifier">ForceTableEntryNonBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col1</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">-</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">switch</span><span class="plain"> (</span><span class="identifier">write_flag</span><span class="plain">) {</span>
|
|
<span class="constant">1</span><span class="plain">: </span><span class="identifier">cola1</span><span class="plain">--></span><span class="identifier">i</span><span class="plain"> = </span><span class="identifier">write_value</span><span class="plain">;</span>
|
|
<span class="constant">2</span><span class="plain">: </span><span class="identifier">cola1</span><span class="plain">--></span><span class="identifier">i</span><span class="plain"> = </span><span class="identifier">cola1</span><span class="plain">--></span><span class="identifier">i</span><span class="plain"> + </span><span class="identifier">write_value</span><span class="plain">;</span>
|
|
<span class="constant">3</span><span class="plain">: </span><span class="identifier">cola1</span><span class="plain">--></span><span class="identifier">i</span><span class="plain"> = </span><span class="identifier">cola1</span><span class="plain">--></span><span class="identifier">i</span><span class="plain"> </span><span class="constant">-</span><span class="plain"> </span><span class="identifier">write_value</span><span class="plain">;</span>
|
|
<span class="constant">5</span><span class="plain">: </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">cola1</span><span class="plain">--></span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="identifier">cola1</span><span class="plain">--></span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) &&</span>
|
|
<span class="plain">(</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col1</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">-</span><span class="identifier">COL_HSIZE</span><span class="plain">))) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOCORR</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">ExistsTableLookUpCorr</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col1</span><span class="plain"> </span><span class="identifier">col2</span><span class="plain"> </span><span class="identifier">lookup_value</span><span class="plain"> </span><span class="identifier">cola1</span><span class="plain"> </span><span class="identifier">cola2</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">f</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col1</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col1</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col1</span><span class="plain">, </span><span class="reserved">false</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col2</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col2</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col2</span><span class="plain">, </span><span class="reserved">false</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col1</span><span class="plain">*</span><span class="identifier">col2</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="identifier">cola1</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col1</span><span class="plain">; </span><span class="identifier">cola2</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col2</span><span class="plain">;</span>
|
|
<span class="identifier">j</span><span class="plain"> = </span><span class="identifier">cola2</span><span class="plain">-->0;</span>
|
|
<span class="identifier">f</span><span class="plain">=0;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col2</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">) </span><span class="identifier">f</span><span class="plain">=1;</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col2</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_TOPIC</span><span class="plain">) </span><span class="identifier">f</span><span class="plain">=2;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1+</span><span class="identifier">COL_HSIZE</span><span class="plain">:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">j</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">cola1</span><span class="plain">--></span><span class="identifier">i</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) &&</span>
|
|
<span class="plain">(</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col1</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">-</span><span class="identifier">COL_HSIZE</span><span class="plain">))) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain"> == </span><span class="constant">1</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">cola2</span><span class="plain">--></span><span class="identifier">i</span><span class="plain">, </span><span class="identifier">lookup_value</span><span class="plain">) ~= </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain"> == </span><span class="constant">2</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">cola2</span><span class="plain">--></span><span class="identifier">i</span><span class="plain">)(</span><span class="identifier">lookup_value</span><span class="plain">/100, </span><span class="identifier">lookup_value</span><span class="plain">%100) == </span><span class="identifier">GPR_FAIL</span><span class="plain">) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">cola2</span><span class="plain">--></span><span class="identifier">i</span><span class="plain"> ~= </span><span class="identifier">lookup_value</span><span class="plain">) </span><span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP13"></a><b>§13. Table Look Up Entry. </b><code class="display"><span class="extract">TableLookUpEntry(T, C, R)</span></code> returns the value at column <code class="display"><span class="extract">C</span></code>, row <code class="display"><span class="extract">R</span></code>, printing
|
|
an error if that doesn't exist.
|
|
</p>
|
|
|
|
<p class="inwebparagraph"><code class="display"><span class="extract">ExistsTableLookUpEntry(T, C, R)</span></code> returns true if a value exists at column
|
|
<code class="display"><span class="extract">C</span></code>, row <code class="display"><span class="extract">R</span></code>, false otherwise.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableLookUpEntry</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">index</span><span class="plain"> </span><span class="identifier">write_flag</span><span class="plain"> </span><span class="identifier">write_value</span><span class="plain"> </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">tab</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOTABLE2</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="reserved">true</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">index</span><span class="plain"> < </span><span class="constant">1</span><span class="plain">) || (</span><span class="identifier">index</span><span class="plain"> > </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">))) {</span>
|
|
<span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOROW</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">index</span><span class="plain">); </span><span class="identifier">index</span><span class="plain"> = </span><span class="constant">1</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">write_flag</span><span class="plain">) {</span>
|
|
<span class="reserved">switch</span><span class="plain">(</span><span class="identifier">write_flag</span><span class="plain">) {</span>
|
|
<span class="constant">1</span><span class="plain">: </span><span class="identifier">ForceTableEntryNonBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">index</span><span class="plain">);</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">index</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) = </span><span class="identifier">write_value</span><span class="plain">;</span>
|
|
<span class="constant">2</span><span class="plain">: </span><span class="identifier">ForceTableEntryNonBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">index</span><span class="plain">);</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">index</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) =</span>
|
|
<span class="plain">((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">index</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">)) + </span><span class="identifier">write_value</span><span class="plain">;</span>
|
|
<span class="constant">3</span><span class="plain">: </span><span class="identifier">ForceTableEntryNonBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">index</span><span class="plain">);</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">index</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) =</span>
|
|
<span class="plain">((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">index</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">)) </span><span class="constant">-</span><span class="plain"> </span><span class="identifier">write_value</span><span class="plain">;</span>
|
|
<span class="constant">4</span><span class="plain">: </span><span class="identifier">ForceTableEntryBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">index</span><span class="plain">);</span>
|
|
<span class="constant">5</span><span class="plain">: </span><span class="identifier">ForceTableEntryNonBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">index</span><span class="plain">);</span>
|
|
<span class="reserved">return</span><span class="plain"> ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">index</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">));</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="identifier">v</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">index</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">));</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">index</span><span class="plain">))) {</span>
|
|
<span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOENTRY</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="identifier">index</span><span class="plain">); </span><span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">ExistsTableLookUpEntry</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">index</span><span class="plain"> </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">index</span><span class="plain"><1) || (</span><span class="identifier">index</span><span class="plain"> > </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">))) </span><span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="identifier">v</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">index</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">));</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">index</span><span class="plain">)))</span>
|
|
<span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP14"></a><b>§14. Blank Rows. </b><code class="display"><span class="extract">TableRowIsBlank(T, R)</span></code> returns true if row <code class="display"><span class="extract">R</span></code> of table <code class="display"><span class="extract">T</span></code> is blank. (<code class="display"><span class="extract">R</span></code>
|
|
must be a legal row number.)
|
|
</p>
|
|
|
|
<p class="inwebparagraph"><code class="display"><span class="extract">TableBlankOutRow(T, R)</span></code> fills row <code class="display"><span class="extract">R</span></code> of table <code class="display"><span class="extract">T</span></code> with blanks. (<code class="display"><span class="extract">R</span></code> must be
|
|
a legal row number.)
|
|
</p>
|
|
|
|
<p class="inwebparagraph"><code class="display"><span class="extract">TableBlankRows(T)</span></code> returns the number of blank rows in <code class="display"><span class="extract">T</span></code>.
|
|
</p>
|
|
|
|
<p class="inwebparagraph"><code class="display"><span class="extract">TableFilledRows(T)</span></code> returns the number of non-blank rows in <code class="display"><span class="extract">T</span></code>.
|
|
</p>
|
|
|
|
<p class="inwebparagraph"><code class="display"><span class="extract">TableBlankRow(T)</span></code> finds the first blank row in <code class="display"><span class="extract">T</span></code>.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableRowIsBlank</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">k</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">k</span><span class="plain">=1:</span><span class="identifier">k</span><span class="plain"><=</span><span class="identifier">tab</span><span class="plain">-->0:</span><span class="identifier">k</span><span class="plain">++) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">j</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">)) ~= </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) </span><span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">, </span><span class="identifier">j</span><span class="plain">) == </span><span class="reserved">false</span><span class="plain">) </span><span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">TableBlankOutRow</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">row</span><span class="plain"> </span><span class="identifier">k</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">tab</span><span class="plain">==0) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOTABLE</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">k</span><span class="plain">=1:</span><span class="identifier">k</span><span class="plain"><=</span><span class="identifier">tab</span><span class="plain">-->0:</span><span class="identifier">k</span><span class="plain">++)</span>
|
|
<span class="identifier">ForceTableEntryBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">, </span><span class="identifier">row</span><span class="plain">);</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">TableBlankOutColumn</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">n</span><span class="plain"> </span><span class="identifier">k</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">tab</span><span class="plain">==0) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOTABLE</span><span class="plain">);</span>
|
|
<span class="identifier">n</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">k</span><span class="plain">=1:</span><span class="identifier">k</span><span class="plain"><=</span><span class="identifier">n</span><span class="plain">:</span><span class="identifier">k</span><span class="plain">++)</span>
|
|
<span class="identifier">ForceTableEntryBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">);</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">TableBlankOutAll</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">n</span><span class="plain"> </span><span class="identifier">k</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">tab</span><span class="plain">==0) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOTABLE</span><span class="plain">);</span>
|
|
<span class="identifier">n</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">k</span><span class="plain">=1:</span><span class="identifier">k</span><span class="plain"><=</span><span class="identifier">n</span><span class="plain">:</span><span class="identifier">k</span><span class="plain">++)</span>
|
|
<span class="identifier">TableBlankOutRow</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">);</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">TableBlankRows</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">c</span><span class="plain">;</span>
|
|
<span class="identifier">i</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">); </span><span class="comment">!print i, " rows^";</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">j</span><span class="plain">=1:</span><span class="identifier">j</span><span class="plain"><=</span><span class="identifier">i</span><span class="plain">:</span><span class="identifier">j</span><span class="plain">++)</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TableRowIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">j</span><span class="plain">)) </span><span class="identifier">c</span><span class="plain">++;</span>
|
|
<span class="comment">!print c, " blank^";</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">c</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">TableFilledRows</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">) </span><span class="constant">-</span><span class="plain"> </span><span class="identifier">TableBlankRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">TableBlankRow</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain">;</span>
|
|
<span class="identifier">i</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">j</span><span class="plain">=1:</span><span class="identifier">j</span><span class="plain"><=</span><span class="identifier">i</span><span class="plain">:</span><span class="identifier">j</span><span class="plain">++)</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TableRowIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">j</span><span class="plain">)) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">j</span><span class="plain">;</span>
|
|
<span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOMOREBLANKS</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP15"></a><b>§15. Random Row. </b><code class="display"><span class="extract">TableRandomRow(T)</span></code> chooses a random non-blank row in <code class="display"><span class="extract">T</span></code>.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableRandomRow</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">k</span><span class="plain">;</span>
|
|
<span class="identifier">i</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="identifier">j</span><span class="plain"> = </span><span class="identifier">TableFilledRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">j</span><span class="plain">==0) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_NOROWS</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">j</span><span class="plain">>1) </span><span class="identifier">j</span><span class="plain"> = </span><span class="reserved">random</span><span class="plain">(</span><span class="identifier">j</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">k</span><span class="plain">=1:</span><span class="identifier">k</span><span class="plain"><=</span><span class="identifier">i</span><span class="plain">:</span><span class="identifier">k</span><span class="plain">++) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TableRowIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">) == </span><span class="reserved">false</span><span class="plain">) </span><span class="identifier">j</span><span class="plain">--;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">j</span><span class="plain">==0) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">k</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP16"></a><b>§16. Swap Rows. </b><code class="display"><span class="extract">TableSwapRows(T, R1, R2)</span></code> exchanges rows <code class="display"><span class="extract">R1</span></code> and <code class="display"><span class="extract">R2</span></code>.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableSwapRows</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">k</span><span class="plain"> </span><span class="identifier">l</span><span class="plain"> </span><span class="identifier">v1</span><span class="plain"> </span><span class="identifier">v2</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">==</span><span class="identifier">j</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="identifier">l</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">-->0;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">k</span><span class="plain">=1:</span><span class="identifier">k</span><span class="plain"><=</span><span class="identifier">l</span><span class="plain">:</span><span class="identifier">k</span><span class="plain">++) {</span>
|
|
<span class="identifier">v1</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="identifier">v2</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">j</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) = </span><span class="identifier">v2</span><span class="plain">;</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">j</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) = </span><span class="identifier">v1</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v1</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) || (</span><span class="identifier">v2</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">))</span>
|
|
<span class="identifier">TableSwapBlankBits</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">i</span><span class="plain">, </span><span class="identifier">j</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP17"></a><b>§17. Compare Rows. </b><code class="display"><span class="extract">TableCompareRows(T, C, R1, R2, D)</span></code> returns:
|
|
</p>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<ul class="items"><li>(a) +1 if the entry at row R1 of column C is > the entry at row R2,
|
|
</li><li>(b) 0 if they are equal, and
|
|
</li><li>(c) -1 if entry at R1 < entry at R2.
|
|
</li></ul>
|
|
<p class="inwebparagraph">When D = +1, a blank value is greater than all other values, so that in
|
|
an ascending sort the blanks come last; when D = -1, a blank value is
|
|
less than all others, so that once again blanks are last. Finally, a wholly
|
|
blank row is always placed after a row in which the entry in C is blank but
|
|
where other entries are not.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableCompareRows</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">row1</span><span class="plain"> </span><span class="identifier">row2</span><span class="plain"> </span><span class="identifier">dir</span><span class="plain"> </span><span class="identifier">val1</span><span class="plain"> </span><span class="identifier">val2</span><span class="plain"> </span><span class="identifier">bl1</span><span class="plain"> </span><span class="identifier">bl2</span><span class="plain"> </span><span class="identifier">f</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="reserved">false</span><span class="plain">);</span>
|
|
<span class="identifier">val1</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row1</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="identifier">val2</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row2</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">val1</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) </span><span class="identifier">bl1</span><span class="plain"> = </span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">row1</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">val2</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) </span><span class="identifier">bl2</span><span class="plain"> = </span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">row2</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">val1</span><span class="plain"> == </span><span class="identifier">val2</span><span class="plain">) && (</span><span class="identifier">bl1</span><span class="plain"> == </span><span class="identifier">bl2</span><span class="plain">)) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">val1</span><span class="plain"> ~= </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">0</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bl1</span><span class="plain"> == </span><span class="reserved">false</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">0</span><span class="plain">;</span>
|
|
<span class="comment">! The two entries are both blank:</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TableRowIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">row1</span><span class="plain">)) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TableRowIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">row2</span><span class="plain">)) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">0</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="constant">-1</span><span class="plain">*</span><span class="identifier">dir</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TableRowIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">row2</span><span class="plain">)) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">dir</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="constant">0</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bl1</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">dir</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bl2</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">-1</span><span class="plain">*</span><span class="identifier">dir</span><span class="plain">;</span>
|
|
<span class="identifier">f</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain"> & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">val2</span><span class="plain">, </span><span class="identifier">val1</span><span class="plain">) < </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">1</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="constant">-1</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain"> & </span><span class="identifier">TB_COLUMN_REAL</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">REAL_NUMBER_TY_Compare</span><span class="plain">(</span><span class="identifier">val1</span><span class="plain">, </span><span class="identifier">val2</span><span class="plain">) > </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">1</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="constant">-1</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain"> & </span><span class="identifier">TB_COLUMN_SIGNED</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">val1</span><span class="plain"> > </span><span class="identifier">val2</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">1</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="constant">-1</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">UnsignedCompare</span><span class="plain">(</span><span class="identifier">val1</span><span class="plain">, </span><span class="identifier">val2</span><span class="plain">) > </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">1</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="constant">-1</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP18"></a><b>§18. Move Row Down. </b></p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableMoveRowDown</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">r1</span><span class="plain"> </span><span class="identifier">r2</span><span class="plain"> </span><span class="identifier">rx</span><span class="plain"> </span><span class="identifier">k</span><span class="plain"> </span><span class="identifier">l</span><span class="plain"> </span><span class="identifier">m</span><span class="plain"> </span><span class="identifier">v</span><span class="plain"> </span><span class="identifier">f</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">r1</span><span class="plain">==</span><span class="identifier">r2</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="identifier">l</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">-->0;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">k</span><span class="plain">=1:</span><span class="identifier">k</span><span class="plain"><=</span><span class="identifier">l</span><span class="plain">:</span><span class="identifier">k</span><span class="plain">++) {</span>
|
|
<span class="identifier">f</span><span class="plain"> = </span><span class="reserved">false</span><span class="plain">;</span>
|
|
<span class="identifier">m</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">r1</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">m</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) </span><span class="identifier">f</span><span class="plain"> = </span><span class="reserved">true</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">rx</span><span class="plain">=</span><span class="identifier">r1</span><span class="plain">:</span><span class="identifier">rx</span><span class="plain"><</span><span class="identifier">r2</span><span class="plain">:</span><span class="identifier">rx</span><span class="plain">++) {</span>
|
|
<span class="identifier">v</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">rx</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">+1);</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">rx</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) = </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) </span><span class="identifier">f</span><span class="plain"> = </span><span class="reserved">true</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">(</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">k</span><span class="plain">)-->(</span><span class="identifier">r2</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">) = </span><span class="identifier">m</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain">) </span><span class="identifier">TableMoveBlankBitsDown</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">r1</span><span class="plain">, </span><span class="identifier">r2</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP19"></a><b>§19. Shuffle. </b><code class="display"><span class="extract">TableShuffle(T)</span></code> sorts <code class="display"><span class="extract">T</span></code> into random row order.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableShuffle</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="reserved">to</span><span class="plain">;</span>
|
|
<span class="identifier">TableMoveBlanksToBack</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="constant">1</span><span class="plain">, </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">));</span>
|
|
<span class="reserved">to</span><span class="plain"> = </span><span class="identifier">TableFilledRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=2:</span><span class="identifier">i</span><span class="plain"><=</span><span class="reserved">to</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) </span><span class="identifier">TableSwapRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">i</span><span class="plain">, </span><span class="reserved">random</span><span class="plain">(</span><span class="identifier">i</span><span class="plain">));</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP20"></a><b>§20. Next Row. </b><code class="display"><span class="extract">TableNextRow(T, C, R, D)</span></code> is used when scanning through a table in order
|
|
of the values in column <code class="display"><span class="extract">C</span></code>: ascending order if <code class="display"><span class="extract">D = 1</span></code>, descending if <code class="display"><span class="extract">D =
|
|
</span></code>-1<code class="display"><span class="extract">. The current position is row </span></code>R<code class="display"><span class="extract"> of column </span></code>C<code class="display"><span class="extract">, or </span></code>R = 0<code class="display"><span class="extract"> if we have
|
|
</span></code>not yet found the first row. The return value is the row number for the
|
|
next value, or 0 if we are already at the final value. Note that if there
|
|
are several equal values in the column, they will be run through in turn,
|
|
in order of their physical row numbers - ascending if <code class="display"><span class="extract">D = 1</span></code>, descending
|
|
if <code class="display"><span class="extract">D = -1</span></code>, so that using the routine with <code class="display"><span class="extract">D = -1</span></code> always produces the
|
|
exact reverse ordering from using it with <code class="display"><span class="extract">D = 1</span></code> and the same parameters.
|
|
Rows with blank entries in <code class="display"><span class="extract">C</span></code> are skipped.
|
|
</p>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">for (R=TableNextRow(T,C,0,D): R : R=TableNextRow(T,C,R,D)) ...</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph">will perform a loop of valid row numbers in order of column <code class="display"><span class="extract">C</span></code>.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableNextRow</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">row</span><span class="plain"> </span><span class="identifier">dir</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">k</span><span class="plain"> </span><span class="identifier">val</span><span class="plain"> </span><span class="identifier">v</span><span class="plain"> </span><span class="identifier">dv</span><span class="plain"> </span><span class="identifier">min_dv</span><span class="plain"> </span><span class="identifier">min_at</span><span class="plain"> </span><span class="identifier">signed_arithmetic</span><span class="plain"> </span><span class="identifier">f</span><span class="plain"> </span><span class="identifier">blk</span><span class="plain"> </span><span class="identifier">z</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="reserved">false</span><span class="plain">);</span>
|
|
<span class="identifier">f</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain"> & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">) </span><span class="identifier">blk</span><span class="plain"> = </span><span class="reserved">true</span><span class="plain">;</span>
|
|
<span class="identifier">signed_arithmetic</span><span class="plain"> = </span><span class="identifier">f</span><span class="plain"> & </span><span class="identifier">TB_COLUMN_SIGNED</span><span class="plain">;</span>
|
|
<span class="plain">#</span><span class="identifier">Iftrue</span><span class="plain"> (</span><span class="identifier">WORDSIZE</span><span class="plain"> == </span><span class="constant">2</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">row</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">signed_arithmetic</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">dir</span><span class="plain"> == </span><span class="constant">1</span><span class="plain">) </span><span class="identifier">val</span><span class="plain"> = </span><span class="constant">$8000</span><span class="plain">; </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">val</span><span class="plain"> = </span><span class="constant">$7fff</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">dir</span><span class="plain"> == </span><span class="constant">1</span><span class="plain">) </span><span class="identifier">val</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">; </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">val</span><span class="plain"> = </span><span class="constant">$ffff</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">val</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">signed_arithmetic</span><span class="plain">) </span><span class="identifier">min_dv</span><span class="plain"> = </span><span class="constant">$7fff</span><span class="plain">; </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">min_dv</span><span class="plain"> = </span><span class="constant">$ffff</span><span class="plain">;</span>
|
|
<span class="plain">#</span><span class="identifier">ifnot</span><span class="plain">; </span><span class="comment">! WORDSIZE == 4</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">row</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">signed_arithmetic</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">dir</span><span class="plain"> == </span><span class="constant">1</span><span class="plain">) </span><span class="identifier">val</span><span class="plain"> = </span><span class="constant">$80000000</span><span class="plain">; </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">val</span><span class="plain"> = </span><span class="constant">$7fffffff</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">dir</span><span class="plain"> == </span><span class="constant">1</span><span class="plain">) </span><span class="identifier">val</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">; </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">val</span><span class="plain"> = </span><span class="constant">$ffffffff</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">val</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">signed_arithmetic</span><span class="plain">) </span><span class="identifier">min_dv</span><span class="plain"> = </span><span class="constant">$7fffffff</span><span class="plain">; </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">min_dv</span><span class="plain"> = </span><span class="constant">$ffffffff</span><span class="plain">;</span>
|
|
<span class="plain">#</span><span class="identifier">endif</span><span class="plain">;</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">dir</span><span class="plain"> == </span><span class="constant">1</span><span class="plain">) {</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">k</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="identifier">v</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">)))</span>
|
|
<span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">blk</span><span class="plain">) {</span>
|
|
<span class="identifier">dv</span><span class="plain"> = </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">row</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="identifier">z</span><span class="plain"> = </span><span class="constant">1</span><span class="plain">; </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">z</span><span class="plain"> = </span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">v</span><span class="plain">, </span><span class="identifier">val</span><span class="plain">);</span>
|
|
<span class="identifier">f</span><span class="plain"> = (((</span><span class="identifier">z</span><span class="plain"> > </span><span class="constant">0</span><span class="plain">) || ((</span><span class="identifier">z</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) && (</span><span class="identifier">i</span><span class="plain"> > </span><span class="identifier">row</span><span class="plain">))) &&</span>
|
|
<span class="plain">((</span><span class="identifier">min_at</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) || (</span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">v</span><span class="plain">, </span><span class="identifier">min_dv</span><span class="plain">) < </span><span class="constant">0</span><span class="plain">)));</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="identifier">dv</span><span class="plain"> = </span><span class="identifier">dir</span><span class="plain">*</span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">signed_arithmetic</span><span class="plain">)</span>
|
|
<span class="identifier">f</span><span class="plain"> = (((</span><span class="identifier">dv</span><span class="plain"> > </span><span class="identifier">dir</span><span class="plain">*</span><span class="identifier">val</span><span class="plain">) || ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">val</span><span class="plain">) && (</span><span class="identifier">i</span><span class="plain">></span><span class="identifier">row</span><span class="plain">))) &&</span>
|
|
<span class="plain">(</span><span class="identifier">dv</span><span class="plain"> < </span><span class="identifier">min_dv</span><span class="plain">));</span>
|
|
<span class="reserved">else</span>
|
|
<span class="identifier">f</span><span class="plain"> = (((</span><span class="identifier">UnsignedCompare</span><span class="plain">(</span><span class="identifier">dv</span><span class="plain">, </span><span class="identifier">dir</span><span class="plain">*</span><span class="identifier">val</span><span class="plain">) > </span><span class="constant">0</span><span class="plain">) || ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">val</span><span class="plain">) && (</span><span class="identifier">i</span><span class="plain">></span><span class="identifier">row</span><span class="plain">))) &&</span>
|
|
<span class="plain">(</span><span class="identifier">UnsignedCompare</span><span class="plain">(</span><span class="identifier">dv</span><span class="plain">, </span><span class="identifier">min_dv</span><span class="plain">) < </span><span class="constant">0</span><span class="plain">));</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain">) { </span><span class="identifier">min_dv</span><span class="plain"> = </span><span class="identifier">dv</span><span class="plain">; </span><span class="identifier">min_at</span><span class="plain"> = </span><span class="identifier">i</span><span class="plain">; }</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=</span><span class="identifier">k</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">>=1:</span><span class="identifier">i</span><span class="plain">--) {</span>
|
|
<span class="identifier">v</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">)))</span>
|
|
<span class="reserved">continue</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">blk</span><span class="plain">) {</span>
|
|
<span class="identifier">dv</span><span class="plain"> = </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">row</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="identifier">z</span><span class="plain"> = </span><span class="constant">-1</span><span class="plain">; </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">z</span><span class="plain"> = </span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">v</span><span class="plain">, </span><span class="identifier">val</span><span class="plain">);</span>
|
|
<span class="identifier">f</span><span class="plain"> = (((</span><span class="identifier">z</span><span class="plain"> < </span><span class="constant">0</span><span class="plain">) || ((</span><span class="identifier">z</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) && (</span><span class="identifier">i</span><span class="plain"> < </span><span class="identifier">row</span><span class="plain">))) &&</span>
|
|
<span class="plain">((</span><span class="identifier">min_at</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) || (</span><span class="identifier">BlkValueCompare</span><span class="plain">(</span><span class="identifier">v</span><span class="plain">, </span><span class="identifier">min_dv</span><span class="plain">) > </span><span class="constant">0</span><span class="plain">)));</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="identifier">dv</span><span class="plain"> = </span><span class="identifier">dir</span><span class="plain">*</span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">signed_arithmetic</span><span class="plain">)</span>
|
|
<span class="identifier">f</span><span class="plain"> = (((</span><span class="identifier">dv</span><span class="plain"> > </span><span class="identifier">dir</span><span class="plain">*</span><span class="identifier">val</span><span class="plain">) || ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">val</span><span class="plain">) && (</span><span class="identifier">i</span><span class="plain"><</span><span class="identifier">row</span><span class="plain">))) &&</span>
|
|
<span class="plain">(</span><span class="identifier">dv</span><span class="plain"> < </span><span class="identifier">min_dv</span><span class="plain">));</span>
|
|
<span class="reserved">else</span>
|
|
<span class="identifier">f</span><span class="plain"> = (((</span><span class="identifier">UnsignedCompare</span><span class="plain">(</span><span class="identifier">dv</span><span class="plain">, </span><span class="identifier">dir</span><span class="plain">*</span><span class="identifier">val</span><span class="plain">) > </span><span class="constant">0</span><span class="plain">) || ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">val</span><span class="plain">) && (</span><span class="identifier">i</span><span class="plain"><</span><span class="identifier">row</span><span class="plain">))) &&</span>
|
|
<span class="plain">(</span><span class="identifier">UnsignedCompare</span><span class="plain">(</span><span class="identifier">dv</span><span class="plain">, </span><span class="identifier">min_dv</span><span class="plain">) < </span><span class="constant">0</span><span class="plain">));</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">f</span><span class="plain">) { </span><span class="identifier">min_dv</span><span class="plain"> = </span><span class="identifier">dv</span><span class="plain">; </span><span class="identifier">min_at</span><span class="plain"> = </span><span class="identifier">i</span><span class="plain">; }</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">min_at</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP21"></a><b>§21. Move Blanks to Back. </b></p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableMoveBlanksToBack</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">fromrow</span><span class="plain"> </span><span class="identifier">torow</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">fbl</span><span class="plain"> </span><span class="identifier">lnbl</span><span class="plain"> </span><span class="identifier">blc</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">torow</span><span class="plain"> < </span><span class="identifier">fromrow</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="identifier">fbl</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">; </span><span class="identifier">lnbl</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=</span><span class="identifier">fromrow</span><span class="plain">: </span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">torow</span><span class="plain">: </span><span class="identifier">i</span><span class="plain">++)</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TableRowIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">i</span><span class="plain">)) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">fbl</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="identifier">fbl</span><span class="plain"> = </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="identifier">blc</span><span class="plain">++;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="identifier">lnbl</span><span class="plain"> = </span><span class="identifier">i</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">fbl</span><span class="plain">>0) && (</span><span class="identifier">lnbl</span><span class="plain">>0) && (</span><span class="identifier">fbl</span><span class="plain"> < </span><span class="identifier">lnbl</span><span class="plain">)) {</span>
|
|
<span class="identifier">TableMoveRowDown</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">fbl</span><span class="plain">, </span><span class="identifier">lnbl</span><span class="plain">); </span><span class="comment">! Move first blank just past last nonblank</span>
|
|
<span class="identifier">TableMoveBlanksToBack</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">fbl</span><span class="plain">, </span><span class="identifier">lnbl</span><span class="plain">-1);</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">torow</span><span class="plain">-</span><span class="identifier">blc</span><span class="plain">; </span><span class="comment">! Final non-blank row</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP22"></a><b>§22. Sort. </b>This is really only a front-end: it calls the sorting code at "Sort.i6t".
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableSort</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">dir</span><span class="plain"> </span><span class="identifier">algorithm</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">k</span><span class="plain"> </span><span class="identifier">f</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">tab</span><span class="plain">-->0:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="identifier">j</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">i</span><span class="plain">; </span><span class="comment">! Address of column table</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">j</span><span class="plain">-->1) & </span><span class="identifier">TB_COLUMN_DONTSORTME</span><span class="plain">)</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_CANTSORT</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="reserved">false</span><span class="plain">);</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableMoveBlanksToBack</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="constant">1</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">);</span>
|
|
|
|
<span class="identifier">SetSortDomain</span><span class="plain">(</span><span class="identifier">TableSwapRows</span><span class="plain">, </span><span class="identifier">TableCompareRows</span><span class="plain">);</span>
|
|
<span class="identifier">SortArray</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="identifier">dir</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">, </span><span class="identifier">algorithm</span><span class="plain">);</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP23"></a><b>§23. Print Table to File. </b>This is how we serialise a table to an external file, though the writing
|
|
is done by printing characters in the standard way; it's just that the output
|
|
stream will be an external file rather than the screen when this routine
|
|
is called.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TablePrint</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">k</span><span class="plain"> </span><span class="identifier">row</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">v</span><span class="plain"> </span><span class="identifier">tc</span><span class="plain"> </span><span class="identifier">kov</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">tab</span><span class="plain">-->0:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="identifier">j</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">i</span><span class="plain">; </span><span class="comment">! Address of column table</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">j</span><span class="plain">-->1) & </span><span class="identifier">TB_COLUMN_CANEXCHANGE</span><span class="plain">) == </span><span class="constant">0</span><span class="plain">)</span>
|
|
<span class="reserved">rtrue</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableMoveBlanksToBack</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="constant">1</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">);</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">"! "</span><span class="plain">, (</span><span class="identifier">PrintTableName</span><span class="plain">) </span><span class="identifier">tab</span><span class="plain">, </span><span class="string">" ("</span><span class="plain">, </span><span class="identifier">k</span><span class="plain">, </span><span class="string">")^"</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">row</span><span class="plain">=1:</span><span class="identifier">row</span><span class="plain"><=</span><span class="identifier">k</span><span class="plain">:</span><span class="identifier">row</span><span class="plain">++) {</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain">=1:</span><span class="identifier">col</span><span class="plain"><=</span><span class="identifier">tab</span><span class="plain">-->0:</span><span class="identifier">col</span><span class="plain">++) {</span>
|
|
<span class="identifier">tc</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NUMBER</span><span class="plain">;</span>
|
|
<span class="identifier">kov</span><span class="plain"> = </span><span class="identifier">KindAtomic</span><span class="plain">(</span><span class="identifier">TC_KOV</span><span class="plain">(</span><span class="identifier">tc</span><span class="plain">));</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">kov</span><span class="plain"> == </span><span class="identifier">UNKNOWN_TY</span><span class="plain">) </span><span class="identifier">kov</span><span class="plain"> = </span><span class="identifier">NUMBER_TY</span><span class="plain">;</span>
|
|
<span class="identifier">v</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">row</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">row</span><span class="plain">)))</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">"-- "</span><span class="plain">;</span>
|
|
<span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">BlkValueWriteToFile</span><span class="plain">(</span><span class="identifier">v</span><span class="plain">, </span><span class="identifier">kov</span><span class="plain">) == </span><span class="reserved">false</span><span class="plain">) </span><span class="reserved">print</span><span class="plain"> </span><span class="identifier">v</span><span class="plain">;</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">" "</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">"^"</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">rfalse</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP24"></a><b>§24. Read Table from File. </b>And this is how we unserialise again. It makes sense only on Glulx.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">#</span><span class="identifier">ifdef</span><span class="plain"> </span><span class="identifier">TARGET_GLULX</span><span class="plain">;</span>
|
|
<span class="plain">[ </span><span class="identifier">TableRead</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">auxf</span><span class="plain"> </span><span class="identifier">row</span><span class="plain"> </span><span class="identifier">maxrow</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">ch</span><span class="plain"> </span><span class="identifier">v</span><span class="plain"> </span><span class="identifier">sgn</span><span class="plain"> </span><span class="identifier">dg</span><span class="plain"> </span><span class="identifier">j</span><span class="plain"> </span><span class="identifier">tc</span><span class="plain"> </span><span class="identifier">kov</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain">=1:</span><span class="identifier">col</span><span class="plain"><=</span><span class="identifier">tab</span><span class="plain">-->0:</span><span class="identifier">col</span><span class="plain">++) {</span>
|
|
<span class="identifier">j</span><span class="plain"> = </span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">; </span><span class="comment">! Address of column table</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">j</span><span class="plain">-->1) & </span><span class="identifier">TB_COLUMN_CANEXCHANGE</span><span class="plain">) == </span><span class="constant">0</span><span class="plain">)</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_CANTSAVE</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="identifier">maxrow</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="comment">!print maxrow, " rows available.^";</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">row</span><span class="plain">=1: </span><span class="identifier">row</span><span class="plain"><=</span><span class="identifier">maxrow</span><span class="plain">: </span><span class="identifier">row</span><span class="plain">++) {</span>
|
|
<span class="identifier">TableBlankOutRow</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">row</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">row</span><span class="plain">=1: </span><span class="identifier">row</span><span class="plain"><=</span><span class="identifier">maxrow</span><span class="plain">: </span><span class="identifier">row</span><span class="plain">++) {</span>
|
|
<span class="comment">!print "Reading row ", row, "^";</span>
|
|
<span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="character">'!'</span><span class="plain">) {</span>
|
|
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> ~= </span><span class="constant">-1</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">10</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">13</span><span class="plain">) </span><span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">);</span>
|
|
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="constant">10</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">13</span><span class="plain">) </span><span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain">=1: </span><span class="identifier">col</span><span class="plain"><=</span><span class="identifier">tab</span><span class="plain">-->0: </span><span class="identifier">col</span><span class="plain">++) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="constant">-1</span><span class="plain">) { </span><span class="identifier">row</span><span class="plain">++; </span><span class="reserved">jump</span><span class="plain"> </span><span class="identifier">NoMore</span><span class="plain">; }</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="constant">10</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">13</span><span class="plain">) </span><span class="reserved">break</span><span class="plain">;</span>
|
|
<span class="identifier">tc</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NUMBER</span><span class="plain">;</span>
|
|
<span class="identifier">kov</span><span class="plain"> = </span><span class="identifier">KindAtomic</span><span class="plain">(</span><span class="identifier">TC_KOV</span><span class="plain">(</span><span class="identifier">tc</span><span class="plain">));</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">kov</span><span class="plain"> == </span><span class="identifier">UNKNOWN_TY</span><span class="plain">) </span><span class="identifier">kov</span><span class="plain"> = </span><span class="identifier">NUMBER_TY</span><span class="plain">;</span>
|
|
<span class="comment">!print "tc = ", tc, " kov = ", kov, "^";</span>
|
|
<span class="identifier">sgn</span><span class="plain"> = </span><span class="constant">1</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="character">'-'</span><span class="plain">) {</span>
|
|
<span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="constant">-1</span><span class="plain">) </span><span class="reserved">jump</span><span class="plain"> </span><span class="identifier">NotTable</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="character">'-'</span><span class="plain">) { </span><span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">); </span><span class="reserved">jump</span><span class="plain"> </span><span class="identifier">EntryDone</span><span class="plain">; }</span>
|
|
<span class="identifier">sgn</span><span class="plain"> = </span><span class="constant">-1</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">)</span>
|
|
<span class="identifier">ForceTableEntryNonBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="identifier">row</span><span class="plain">);</span>
|
|
<span class="comment">!print "A";</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="identifier">BlkValueReadFromFile</span><span class="plain">(0, </span><span class="constant">0</span><span class="plain">, </span><span class="constant">-1</span><span class="plain">, </span><span class="identifier">kov</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">v</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain">)</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="identifier">BlkValueReadFromFile</span><span class="plain">(</span><span class="identifier">TableLookUpEntry</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="identifier">row</span><span class="plain">),</span>
|
|
<span class="identifier">auxf</span><span class="plain">, </span><span class="identifier">ch</span><span class="plain">, </span><span class="identifier">kov</span><span class="plain">);</span>
|
|
<span class="reserved">else</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="identifier">BlkValueReadFromFile</span><span class="plain">(0, </span><span class="identifier">auxf</span><span class="plain">, </span><span class="identifier">ch</span><span class="plain">, </span><span class="identifier">kov</span><span class="plain">);</span>
|
|
<span class="identifier">ch</span><span class="plain"> = </span><span class="constant">32</span><span class="plain">;</span>
|
|
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="identifier">dg</span><span class="plain"> = </span><span class="identifier">ch</span><span class="plain"> </span><span class="constant">-</span><span class="plain"> </span><span class="character">'0'</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">dg</span><span class="plain"> < </span><span class="constant">0</span><span class="plain">) || (</span><span class="identifier">dg</span><span class="plain"> > </span><span class="constant">9</span><span class="plain">)) </span><span class="reserved">jump</span><span class="plain"> </span><span class="identifier">NotTable</span><span class="plain">;</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="identifier">dg</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (::) {</span>
|
|
<span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">);</span>
|
|
<span class="identifier">dg</span><span class="plain"> = </span><span class="identifier">ch</span><span class="plain"> </span><span class="constant">-</span><span class="plain"> </span><span class="character">'0'</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">dg</span><span class="plain"> < </span><span class="constant">0</span><span class="plain">) || (</span><span class="identifier">dg</span><span class="plain"> > </span><span class="constant">9</span><span class="plain">)) </span><span class="reserved">break</span><span class="plain">;</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="constant">10</span><span class="plain">*</span><span class="identifier">v</span><span class="plain"> + </span><span class="identifier">dg</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="identifier">v</span><span class="plain"> = </span><span class="identifier">v</span><span class="plain">*</span><span class="identifier">sgn</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="comment">!print "v=", v, " ";</span>
|
|
<span class="reserved">if</span><span class="plain"> (((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_ALLOCATED</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">)</span>
|
|
<span class="identifier">TableLookUpEntry</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="identifier">row</span><span class="plain">, </span><span class="reserved">true</span><span class="plain">, </span><span class="identifier">v</span><span class="plain">);</span>
|
|
<span class="plain">.</span><span class="identifier">EntryDone</span><span class="plain">;</span>
|
|
<span class="comment">!print "First nd is ", ch, "^";</span>
|
|
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="constant">9</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">32</span><span class="plain">) </span><span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> ~= </span><span class="constant">-1</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">10</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">13</span><span class="plain">) {</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">ch</span><span class="plain"> ~= </span><span class="character">'-'</span><span class="plain">) && (((</span><span class="identifier">ch</span><span class="plain">-</span><span class="character">'0'</span><span class="plain">)<0) || ((</span><span class="identifier">ch</span><span class="plain">-</span><span class="character">'0'</span><span class="plain">)>9))) </span><span class="reserved">jump</span><span class="plain"> </span><span class="identifier">NotTable</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> ~= </span><span class="constant">9</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">32</span><span class="plain">) </span><span class="reserved">jump</span><span class="plain"> </span><span class="identifier">WontFit</span><span class="plain">;</span>
|
|
<span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">.</span><span class="identifier">NoMore</span><span class="plain">;</span>
|
|
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="constant">9</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">32</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">10</span><span class="plain"> </span><span class="reserved">or</span><span class="plain"> </span><span class="constant">13</span><span class="plain">) </span><span class="identifier">ch</span><span class="plain"> = </span><span class="identifier">FileIO_GetC</span><span class="plain">(</span><span class="identifier">auxf</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ch</span><span class="plain"> == </span><span class="constant">-1</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
|
|
<span class="plain">.</span><span class="identifier">WontFit</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_WONTFIT</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="plain">.</span><span class="identifier">NotTable</span><span class="plain">;</span>
|
|
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">RunTimeProblem</span><span class="plain">(</span><span class="identifier">RTP_TABLE_BADFILE</span><span class="plain">, </span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="plain">];</span>
|
|
<span class="plain">#</span><span class="identifier">ENDIF</span><span class="plain">; </span><span class="comment">! TARGET_GLULX</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<p class="inwebparagraph"><a id="SP25"></a><b>§25. Debugging. </b>Routines to print the state of a table, for debugging purposes only.
|
|
</p>
|
|
|
|
|
|
<pre class="display">
|
|
<span class="plain">[ </span><span class="identifier">TableColumnDebug</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">k</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">v</span><span class="plain"> </span><span class="identifier">tc</span><span class="plain"> </span><span class="identifier">kov</span><span class="plain">;</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain"> >= </span><span class="constant">100</span><span class="plain">) </span><span class="identifier">col</span><span class="plain">=</span><span class="identifier">TableFindCol</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">col</span><span class="plain">, </span><span class="reserved">false</span><span class="plain">);</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="identifier">tc</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NUMBER</span><span class="plain">;</span>
|
|
<span class="identifier">kov</span><span class="plain"> = </span><span class="identifier">TC_KOV</span><span class="plain">(</span><span class="identifier">tc</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">k</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) {</span>
|
|
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">>1) </span><span class="reserved">print</span><span class="plain"> </span><span class="string">", "</span><span class="plain">;</span>
|
|
<span class="identifier">v</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">)))</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">"--"</span><span class="plain">;</span>
|
|
<span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="identifier">PrintKindValuePair</span><span class="plain">(</span><span class="identifier">kov</span><span class="plain">, </span><span class="identifier">v</span><span class="plain">);</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="identifier">say__p</span><span class="plain"> = </span><span class="constant">1</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">TableRowDebug</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">col</span><span class="plain"> </span><span class="identifier">k</span><span class="plain"> </span><span class="identifier">v</span><span class="plain"> </span><span class="identifier">tc</span><span class="plain"> </span><span class="identifier">kov</span><span class="plain">;</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">i</span><span class="plain"><1) || (</span><span class="identifier">i</span><span class="plain">></span><span class="identifier">k</span><span class="plain">)) </span><span class="string">"No such row"</span><span class="plain">;</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">"(row "</span><span class="plain">, </span><span class="identifier">i</span><span class="plain">, </span><span class="string">") |"</span><span class="plain">;</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">col</span><span class="plain">=1: </span><span class="identifier">col</span><span class="plain"><=</span><span class="identifier">tab</span><span class="plain">-->0: </span><span class="identifier">col</span><span class="plain">++) {</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">" "</span><span class="plain">;</span>
|
|
<span class="identifier">tc</span><span class="plain"> = ((</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->1) & </span><span class="identifier">TB_COLUMN_NUMBER</span><span class="plain">;</span>
|
|
<span class="identifier">kov</span><span class="plain"> = </span><span class="identifier">TC_KOV</span><span class="plain">(</span><span class="identifier">tc</span><span class="plain">);</span>
|
|
<span class="identifier">v</span><span class="plain"> = (</span><span class="identifier">tab</span><span class="plain">--></span><span class="identifier">col</span><span class="plain">)-->(</span><span class="identifier">i</span><span class="plain">+</span><span class="identifier">COL_HSIZE</span><span class="plain">);</span>
|
|
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">v</span><span class="plain"> == </span><span class="identifier">TABLE_NOVALUE</span><span class="plain">) && (</span><span class="identifier">CheckTableEntryIsBlank</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">,</span><span class="identifier">col</span><span class="plain">,</span><span class="identifier">i</span><span class="plain">)))</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">"-- "</span><span class="plain">;</span>
|
|
<span class="reserved">else</span><span class="plain"> {</span>
|
|
<span class="identifier">PrintKindValuePair</span><span class="plain">(</span><span class="identifier">kov</span><span class="plain">, </span><span class="identifier">v</span><span class="plain">);</span>
|
|
<span class="reserved">print</span><span class="plain"> </span><span class="string">" |"</span><span class="plain">;</span>
|
|
<span class="plain">}</span>
|
|
<span class="plain">}</span>
|
|
<span class="identifier">say__p</span><span class="plain"> = </span><span class="constant">1</span><span class="plain">;</span>
|
|
<span class="plain">];</span>
|
|
|
|
<span class="plain">[ </span><span class="identifier">TableDebug</span><span class="plain"> </span><span class="identifier">tab</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> </span><span class="identifier">k</span><span class="plain">;</span>
|
|
<span class="identifier">PrintTableName</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">); </span><span class="reserved">print</span><span class="plain"> </span><span class="string">"^"</span><span class="plain">;</span>
|
|
<span class="identifier">k</span><span class="plain"> = </span><span class="identifier">TableRows</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">);</span>
|
|
<span class="reserved">for</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain">=1:</span><span class="identifier">i</span><span class="plain"><=</span><span class="identifier">k</span><span class="plain">:</span><span class="identifier">i</span><span class="plain">++) { </span><span class="identifier">TableRowDebug</span><span class="plain">(</span><span class="identifier">tab</span><span class="plain">, </span><span class="identifier">i</span><span class="plain">); </span><span class="reserved">print</span><span class="plain"> </span><span class="string">"^"</span><span class="plain">; }</span>
|
|
<span class="plain">];</span>
|
|
</pre>
|
|
|
|
<p class="inwebparagraph"></p>
|
|
|
|
<hr class="tocbar">
|
|
<ul class="toc"><li><a href="S-st.html">Back to 'Sort Template'</a></li><li><a href="S-mt2.html">Continue with 'MStack Template'</a></li></ul><hr class="tocbar">
|
|
<!--End of weave-->
|
|
</main>
|
|
</body>
|
|
</html>
|
|
|