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<!-- Weave of 'Feeds' generated by Inweb -->
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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../compiler.html" > Services< / a > < / li > < li > < a href = "index.html" > words< / a > < / li > < li > < a href = "index.html#3" > Chapter 3: Words in Sequence< / a > < / li > < li > < b > Feeds< / b > < / li > < / ul > < / div >
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< p class = "purpose" > Feeds are conduits for arbitrary text to flow into the lexer, and to be converted into wordings.< / p >
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< ul class = "toc" > < li > < a href = "3-fds.html#SP1" > § 1. Feed sessions< / a > < / li > < li > < a href = "3-fds.html#SP3" > § 3. Feeding a feed< / a > < / li > < / ul > < hr class = "tocbar" >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. Feed sessions. < / b > Each feed has a unique ID. At present only one is ever open at a time, but
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we don't want to assume that.
< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > feed_t< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > (not a typedef only because it makes trouble for inweb)< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > There are two ways to make a feed. One is simply to call one of the < span class = "extract" > < span class = "extract-syntax" > feed_text< / span > < / span >
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routines below and use its output. The other is for a multi-stage process,
that is, for when multiple pieces of text need to go into the same feed:
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to start such, call < span class = "extract" > < span class = "extract-syntax" > Feeds::begin< / span > < / span > and get an ID; to end, call < span class = "extract" > < span class = "extract-syntax" > Feeds::end< / span > < / span >
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with the corresponding ID back again.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "constant-syntax" > feed_t< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::begin< / span > < button class = "popup" onclick = "togglePopup('usagePopup1')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup1" > Usage of < span class = "code-font" > < span class = "function-syntax" > Feeds::begin< / span > < / span > :< br / > Word Assemblages - < a href = "2-wa.html#SP6" > § 6< / a > < br / > Loading Preform - < a href = "4-lp.html#SP2" > § 2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > feed_t< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > lexer_wordcount< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::end< / span > < button class = "popup" onclick = "togglePopup('usagePopup2')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup2" > Usage of < span class = "code-font" > < span class = "function-syntax" > Feeds::end< / span > < / span > :< br / > Word Assemblages - < a href = "2-wa.html#SP6" > § 6< / a > < br / > Loading Preform - < a href = "4-lp.html#SP2" > § 2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > feed_t< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-wrd.html#SP5" class = "function-link" > < span class = "function-syntax" > Wordings::new< / span > < / a > < span class = "plain-syntax" > ((< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > lexer_wordcount< / span > < span class = "plain-syntax" > -1);< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. Feeding a feed. < / b > Some variations on a theme:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::feed_C_string< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > wchar_t< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-fds.html#SP4" class = "function-link" > < span class = "function-syntax" > Feeds::feed_C_string_full< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::feed_text< / span > < button class = "popup" onclick = "togglePopup('usagePopup3')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup3" > Usage of < span class = "code-font" > < span class = "function-syntax" > Feeds::feed_text< / span > < / span > :< br / > Vocabulary - < a href = "2-vcb.html#SP16" > § 16< / a > < br / > Word Assemblages - < a href = "2-wa.html#SP6" > § 6< / a > , < a href = "2-wa.html#SP8" > § 8< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-fds.html#SP4" class = "function-link" > < span class = "function-syntax" > Feeds::feed_text_full< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::feed_C_string_expanding_strings< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > wchar_t< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-fds.html#SP4" class = "function-link" > < span class = "function-syntax" > Feeds::feed_C_string_full< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::feed_text_expanding_strings< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-fds.html#SP4" class = "function-link" > < span class = "function-syntax" > Feeds::feed_text_full< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::feed_text_punctuated< / span > < button class = "popup" onclick = "togglePopup('usagePopup4')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup4" > Usage of < span class = "code-font" > < span class = "function-syntax" > Feeds::feed_text_punctuated< / span > < / span > :< br / > Loading Preform - < a href = "4-lp.html#SP2" > § 2< / a > , < a href = "4-lp.html#SP3" > § 3< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > wchar_t< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > pmarks< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > = < / span > < a href = "3-fds.html#SP4" class = "function-link" > < span class = "function-syntax" > Feeds::feed_text_full< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pmarks< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP4" class = "paragraph-anchor" > < / a > < b > § 4. < / b > ...all of which result in calls to these two, which are really the same
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function, written two ways:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::feed_C_string_full< / span > < button class = "popup" onclick = "togglePopup('usagePopup5')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup5" > Usage of < span class = "code-font" > < span class = "function-syntax" > Feeds::feed_C_string_full< / span > < / span > :< br / > < a href = "3-fds.html#SP3" > § 3< / a > < br / > Loading Preform - < a href = "4-lp.html#SP15_1" > § 15.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > wchar_t< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > expand< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > wchar_t< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > nonstandard< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-fds.html#SP4_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Set up the lexer< / span > < span class = "named-paragraph-number" > 4.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > =0; < / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ] != < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > last_cr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > cr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > next_cr< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > last_cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -1]; < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > last_cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EOF< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ];< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > cr< / span > < span class = "plain-syntax" > != < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > next_cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > +1]; < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > next_cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EOF< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < a href = "3-lxr.html#SP26" class = "function-link" > < span class = "function-syntax" > Lexer::feed_triplet< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > last_cr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > cr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > next_cr< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-fds.html#SP4_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Extract results from the lexer< / span > < span class = "named-paragraph-number" > 4.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::feed_text_full< / span > < button class = "popup" onclick = "togglePopup('usagePopup6')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup6" > Usage of < span class = "code-font" > < span class = "function-syntax" > Feeds::feed_text_full< / span > < / span > :< br / > < a href = "3-fds.html#SP3" > § 3< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > expand< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > wchar_t< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > nonstandard< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-fds.html#SP4_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Set up the lexer< / span > < span class = "named-paragraph-number" > 4.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > =0, < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > =< / span > < span class = "identifier-syntax" > Str::len< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > < < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > last_cr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > cr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > next_cr< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > last_cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::get_at< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -1); < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > last_cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EOF< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::get_at< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > cr< / span > < span class = "plain-syntax" > != < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > next_cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::get_at< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > +1); < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > next_cr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EOF< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < a href = "3-lxr.html#SP26" class = "function-link" > < span class = "function-syntax" > Lexer::feed_triplet< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > last_cr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > cr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > next_cr< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-fds.html#SP4_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Extract results from the lexer< / span > < span class = "named-paragraph-number" > 4.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP4_1" class = "paragraph-anchor" > < / a > < b > § 4.1. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Set up the lexer< / span > < span class = "named-paragraph-number" > 4.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < a href = "3-lxr.html#SP25" class = "function-link" > < span class = "function-syntax" > Lexer::feed_begins< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "3-lxr.html#SP3" class = "function-link" > < span class = "function-syntax" > Lexer::as_if_from_nowhere< / span > < / a > < span class = "plain-syntax" > ());< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > lexer_divide_strings_at_text_substitutions< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > expand< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > lexer_allow_I6_escapes< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > nonstandard< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > lexer_punctuation_marks< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > nonstandard< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > lexer_allow_I6_escapes< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > lexer_punctuation_marks< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > STANDARD_PUNCTUATION_MARKS< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "3-fds.html#SP4" > § 4< / a > (twice).< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP4_2" class = "paragraph-anchor" > < / a > < b > § 4.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Extract results from the lexer< / span > < span class = "named-paragraph-number" > 4.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LEXW< / span > < span class = "plain-syntax" > = < / span > < a href = "3-lxr.html#SP25" class = "function-link" > < span class = "function-syntax" > Lexer::feed_ends< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-vcb.html#SP3" class = "function-link" > < span class = "function-syntax" > Vocabulary::identify_word_range< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > LEXW< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LEXW< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "3-fds.html#SP4" > § 4< / a > (twice).< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP5" class = "paragraph-anchor" > < / a > < b > § 5. < / b > If we want to feed a wording, we could do that by printing it out to a text
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stream, then feeding this text; but that would be slow and rather circular, and
would also lose the origin. Much quicker is to splice, and then there's no
need for a feed at all:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Feeds::feed_wording< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-lxr.html#SP29" class = "function-link" > < span class = "function-syntax" > Lexer::splice_words< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< nav role = "progress" > < div class = "progresscontainer" >
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< ul class = "progressbar" > < li class = "progressprev" > < a href = "3-tff.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-wtmd.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-wm.html" > 1< / a > < / li > < li class = "progresschapter" > < a href = "2-vcb.html" > 2< / a > < / li > < li class = "progresscurrentchapter" > 3< / li > < li class = "progresssection" > < a href = "3-lxr.html" > lxr< / a > < / li > < li class = "progresssection" > < a href = "3-wrd.html" > wrd< / a > < / li > < li class = "progresssection" > < a href = "3-tff.html" > tff< / a > < / li > < li class = "progresscurrent" > fds< / li > < li class = "progresssection" > < a href = "3-idn.html" > idn< / a > < / li > < li class = "progresschapter" > < a href = "4-ap.html" > 4< / a > < / li > < li class = "progressnext" > < a href = "3-idn.html" > ❯ < / a > < / li > < / ul > < / div >
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< / nav > <!-- End of weave -->
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< / main >
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< / body >
< / html >