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<!-- Weave of 'Language Services' generated by Inweb -->
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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../compiler.html" > Inbuild Modules< / a > < / li > < li > < a href = "index.html" > supervisor< / a > < / li > < li > < a href = "index.html#5" > Chapter 5: Genre Services< / a > < / li > < li > < b > Language Services< / b > < / li > < / ul > < / div >
< p class = "purpose" > Behaviour specific to copies of the language genre.< / p >
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< ul class = "toc" > < li > < a href = "5-ls.html#SP1" > § 1. Scanning metadata< / a > < / li > < li > < a href = "5-ls.html#SP5" > § 5. Logging< / a > < / li > < li > < a href = "5-ls.html#SP6" > § 6. Language code< / a > < / li > < li > < a href = "5-ls.html#SP7" > § 7. Kit< / a > < / li > < li > < a href = "5-ls.html#SP8" > § 8. Finding by name< / a > < / li > < / ul > < hr class = "tocbar" >
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< p class = "commentary firstcommentary" > < a id = "SP1" > < / a > < b > § 1. Scanning metadata. < / b > Metadata for natural languages is stored in the following structure.
Inform can read and write text in multiple natural languages, though it
needs help to do so: each natural language known to Inform comes from a
small resource folder called its "bundle". (This includes English.)
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inbuild_copy< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > as_copy< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > instance_name< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > instance name, e.g., "German language"< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > instance< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > nl_instance< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > instance, e.g., "German language"< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > language_field< / span > < span class = "plain-syntax" > [< / span > < span class = "constant-syntax" > MAX_LANGUAGE_FIELDS< / span > < span class = "plain-syntax" > ]; < / span > < span class = "comment-syntax" > contents of the < / span > < span class = "extract" > < span class = "extract-syntax" > about.txt< / span > < / span > < span class = "comment-syntax" > fields< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > adaptive_person< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > which person (one of constants below) text subs are written from< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform_loaded< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > has a Preform syntax definition been read for this?< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CLASS_DEFINITION< / span >
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< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > The structure inform_language is accessed in 1/sm, 3/bg, 3/ib, 3/is2, 3/is3, 4/em, 5/es, 5/ks, 5/ps, 5/ps2, 5/ts, 6/st, 6/hdn, 6/tbs, 6/inc, 7/dct, 7/ip2 and here.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" > < / a > < b > § 2. < / b > This is called as soon as a new copy < span class = "extract" > < span class = "extract-syntax" > C< / span > < / span > of the language genre is created.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Languages::scan< / 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" > Languages::scan< / span > < / span > :< br / > Language Manager - < a href = "4-lm.html#SP3" > § 3< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inbuild_copy< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > C< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > as_copy< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > C< / 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" > C< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "no copy to scan"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-cps.html#SP4" class = "function-link" > < span class = "function-syntax" > Copies::set_metadata< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > C< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > STORE_POINTER_inform_language< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sentence_format< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sentence_format< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%S language"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > C< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > edition< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > work< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > title< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > instance_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Feeds::feed_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sentence_format< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sentence_format< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > nl_instance< / 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 > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > Preform_loaded< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > adaptive_person< / span > < span class = "plain-syntax" > = -1; < / span > < span class = "comment-syntax" > i.e., none yet specified< / 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" > n< / span > < span class = "plain-syntax" > =0; < / span > < span class = "identifier-syntax" > n< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > MAX_LANGUAGE_FIELDS< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > n< / span > < span class = "plain-syntax" > ++) < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > language_field< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > n< / span > < span class = "plain-syntax" > ] = < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-ls.html#SP2_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Read the about.txt file for the bundle< / span > < span class = "named-paragraph-number" > 2.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Found language bundle '%S' (%p)\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > C< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > edition< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > work< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > title< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < a href = "5-ls.html#SP4" class = "function-link" > < span class = "function-syntax" > Languages::path_to_bundle< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > ));< / 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 = "SP2_1" > < / a > < b > § 2.1. < / b > Within the bundle folder is a file called < span class = "extract" > < span class = "extract-syntax" > about.txt< / span > < / span > , which sets numbered
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fields to excerpts of text. The following are the field numbers:
< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > NAME_IN_ENGLISH_LFIELD< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > e.g. "German"< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > NAME_NATIVE_LFIELD< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > e.g. "Deutsch"< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CUE_NATIVE_LFIELD< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 3< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > e.g. "in deutscher Sprache"< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > ISO_639_CODE_LFIELD< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > e.g. "de": an ISO 639-1 code< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > TRANSLATOR_LFIELD< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 5< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > e.g. "Team GerX"< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > KIT_LFIELD< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 6< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > e.g. "GermanLanguageKit"< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > MAX_LANGUAGE_FIELDS< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 7< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > one more than the highest number above< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP2_2" > < / a > < b > § 2.2. < / b > If we can't find the file, it doesn't matter except that all of the excerpts
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remain empty. But we may as well tell the debugging log.
< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > MAX_BUNDLE_ABOUT_LINE_LENGTH< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 256< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > which is far more than necessary, really< / span >
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< / pre >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Read the about.txt file for the bundle< / span > < span class = "named-paragraph-number" > 2.2< / 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 = "identifier-syntax" > filename< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > about_file< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Filenames::in< / span > < span class = "plain-syntax" > (< / span > < a href = "5-ls.html#SP4" class = "function-link" > < span class = "function-syntax" > Languages::path_to_bundle< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "about.txt"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > TextFiles::read< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > about_file< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , < / span > < a href = "5-ls.html#SP3" class = "function-link" > < span class = "function-syntax" > Languages::read_metadata< / span > < / a > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Can't find about file: %f\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > about_file< / 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 = "5-ls.html#SP2" > § 2< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP3" > < / a > < b > § 3. < / b > The format of the file is very simple. Each line is introduced by a number
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from 1 to < span class = "extract" > < span class = "extract-syntax" > MAX_LANGUAGE_FIELDS< / span > < / span > minus one, and then contains text which
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extends for the rest of the line.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Languages::read_metadata< / 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" > Languages::read_metadata< / span > < / span > :< br / > < a href = "5-ls.html#SP2_2" > § 2.2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > item_name< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_file_position< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > tfp< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > vnl< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > = (< / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *) < / span > < span class = "identifier-syntax" > vnl< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Feeds::feed_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > item_name< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > vocabulary_entry< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > ve< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Lexer::word< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::first_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / 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" > field< / span > < span class = "plain-syntax" > = -1;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > ve< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > Vocabulary::test_vflags< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > ve< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NUMBER_MC< / span > < span class = "plain-syntax" > )))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > field< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Vocabulary::get_literal_number_value< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > ve< / 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" > field< / span > < span class = "plain-syntax" > > = < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > field< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > MAX_LANGUAGE_FIELDS< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > language_field< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > field< / span > < span class = "plain-syntax" > ] =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Wordings::new< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::first_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > )+1, < / span > < span class = "identifier-syntax" > Wordings::last_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / 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" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Warning: couldn't read about.txt line: %S\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > item_name< / span > < span class = "plain-syntax" > );< / 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" > < / a > < b > § 4. < / b > < / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "identifier-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Languages::path_to_bundle< / 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" > Languages::path_to_bundle< / span > < / span > :< br / > < a href = "5-ls.html#SP2" > § 2< / a > , < a href = "5-ls.html#SP2_2" > § 2.2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > as_copy< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > location_if_path< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
< p class = "commentary firstcommentary" > < a id = "SP5" > < / a > < b > § 5. Logging. < / b > < / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Languages::log< / 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" > Languages::log< / span > < / span > :< br / > Supervisor Module - < a href = "1-sm.html#SP3" > § 3< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > opts< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > vL< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > = (< / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *) < / span > < span class = "identifier-syntax" > vL< / 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" > L< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) { < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "< null-language> "< / 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" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%S"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > as_copy< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > edition< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > work< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > title< / 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 = "SP6" > < / a > < b > § 6. Language code. < / b > This is used when we write the bibliographic data for the work of IF we're
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making; this enables online databases like IFDB, and smart interpreters, to
detect the language of play for a story file without actually running it.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Languages::write_ISO_code< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > ifdef< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CORE_MODULE< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > DefaultLanguage::get< / 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 > < span class = "identifier-syntax" > endif< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > language_field< / span > < span class = "plain-syntax" > [< / span > < span class = "constant-syntax" > ISO_639_CODE_LFIELD< / span > < span class = "plain-syntax" > ]))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%+W"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > language_field< / span > < span class = "plain-syntax" > [< / span > < span class = "constant-syntax" > ISO_639_CODE_LFIELD< / 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" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "en"< / 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 = "SP7" > < / a > < b > § 7. Kit. < / b > Each language needs its own kit of Inter code, named as follows:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Languages::kit_name< / 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" > Languages::kit_name< / span > < / span > :< br / > Project Services - < a href = "5-ps2.html#SP17_1" > § 17.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::new< / 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" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > language_field< / span > < span class = "plain-syntax" > [< / span > < span class = "constant-syntax" > KIT_LFIELD< / span > < span class = "plain-syntax" > ]))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%+W"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > language_field< / span > < span class = "plain-syntax" > [< / span > < span class = "constant-syntax" > KIT_LFIELD< / 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" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%+WLanguageKit"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > language_field< / span > < span class = "plain-syntax" > [< / span > < span class = "constant-syntax" > NAME_IN_ENGLISH_LFIELD< / span > < span class = "plain-syntax" > ]);< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > T< / 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 = "SP8" > < / a > < b > § 8. Finding by name. < / b > Given the name of a natural language (e.g., "German") we find the
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corresponding definition. That will mean searching for a copy, and that
raises the question of where to look — in particular, it's important to
include the Materials folder for any relevant project.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "identifier-syntax" > linked_list< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > search_list_for_Preform_callback< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Languages::read_Preform_definition< / 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" > Languages::read_Preform_definition< / span > < / span > :< br / > Extension Services - < a href = "5-es.html#SP7" > § 7< / a > < br / > Project Services - < a href = "5-ps2.html#SP27" > § 27< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > linked_list< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "no language"< / 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" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > Preform_loaded< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > Preform_loaded< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > search_list_for_Preform_callback< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > (*< / span > < span class = "identifier-syntax" > shared_preform_callback< / span > < span class = "plain-syntax" > )(< / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / 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 = "SP9" > < / a > < b > § 9. < / b > This function is called only from Preform...
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< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > PREFORM_LANGUAGE_FROM_NAME_WORDS_CALLBACK< / span > < span class = "plain-syntax" > < / span > < a href = "5-ls.html#SP9" class = "function-link" > < span class = "function-syntax" > Languages::Preform_find< / span > < / a >
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< / pre >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Languages::Preform_find< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > name< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "5-ls.html#SP10" class = "function-link" > < span class = "function-syntax" > Languages::find_for< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > name< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > search_list_for_Preform_callback< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
< p class = "commentary firstcommentary" > < a id = "SP10" > < / a > < b > § 10. < / b > ...but this one is more generally available.
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > inform_language< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Languages::find_for< / span > < button class = "popup" onclick = "togglePopup('usagePopup7')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup7" > Usage of < span class = "code-font" > < span class = "function-syntax" > Languages::find_for< / span > < / span > :< br / > < a href = "5-ls.html#SP9" > § 9< / a > < br / > Extension Services - < a href = "5-es.html#SP7" > § 7< / a > < br / > Project Services - < a href = "5-ps2.html#SP12" > § 12< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > name< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > linked_list< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > search< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inbuild_requirement< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > req< / span > < span class = "plain-syntax" > =< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-rqr.html#SP2" class = "function-link" > < span class = "function-syntax" > Requirements::any_version_of< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "2-wrk.html#SP2" class = "function-link" > < span class = "function-syntax" > Works::new< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > language_genre< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > name< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > ""< / span > < span class = "plain-syntax" > ));< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inbuild_search_result< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R< / span > < span class = "plain-syntax" > = < / span > < a href = "2-nst.html#SP8" class = "function-link" > < span class = "function-syntax" > Nests::search_for_best< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > req< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > search< / 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" > R< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "4-lm.html#SP3" class = "function-link" > < span class = "function-syntax" > LanguageManager::from_copy< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > R< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > copy< / 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" > NULL< / 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 = "SP11" > < / a > < b > § 11. < / b > Finally, the following Preform nonterminal matches the English-language
name of a language: for example, "French". Unlike the above functions, it
looks only at languages already loaded, and doesn't scan nests for more.
< / p >
< pre class = "Preform-displayed-code all-displayed-code code-font" >
< span class = "Preform-function-syntax" > < natural-language> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > internal< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > inform_language< / span > < span class = "Preform-plain-syntax" > *< / span > < span class = "Preform-identifier-syntax" > L< / span > < span class = "Preform-plain-syntax" > ;< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > LOOP_OVER< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > L< / span > < span class = "Preform-plain-syntax" > , < / span > < span class = "Preform-reserved-syntax" > inform_language< / span > < span class = "Preform-plain-syntax" > )< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > if< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > Wordings::match< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > , < / span > < span class = "Preform-identifier-syntax" > Wordings::first_word< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > L< / span > < span class = "Preform-plain-syntax" > -> < / span > < span class = "Preform-element-syntax" > instance_name< / span > < span class = "Preform-plain-syntax" > ))) {< / span >
< span class = "Preform-plain-syntax" > ==> { -, < / span > < span class = "Preform-identifier-syntax" > L< / span > < span class = "Preform-plain-syntax" > };< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > return< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > TRUE< / span > < span class = "Preform-plain-syntax" > ;< / span >
< span class = "Preform-plain-syntax" > }< / span >
< span class = "Preform-plain-syntax" > ==> { < / span > < span class = "Preform-identifier-syntax" > fail< / span > < span class = "Preform-plain-syntax" > };< / span >
< span class = "Preform-plain-syntax" > }< / span >
< / pre >
< ul class = "endnotetexts" > < li > This is < a href = "../words-module/4-ap.html" class = "internal" > Preform grammar< / a > , not regular C code.< / li > < / ul >
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< nav role = "progress" > < div class = "progresscontainer" >
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< ul class = "progressbar" > < li class = "progressprev" > < a href = "5-ks.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-wtmd.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-sm.html" > 1< / a > < / li > < li class = "progresschapter" > < a href = "2-gnr.html" > 2< / a > < / li > < li class = "progresschapter" > < a href = "3-bg.html" > 3< / a > < / li > < li class = "progresschapter" > < a href = "4-em.html" > 4< / a > < / li > < li class = "progresscurrentchapter" > 5< / li > < li class = "progresssection" > < a href = "5-es.html" > es< / a > < / li > < li class = "progresssection" > < a href = "5-ks.html" > ks< / a > < / li > < li class = "progresscurrent" > ls< / li > < li class = "progresssection" > < a href = "5-ps.html" > ps< / a > < / li > < li class = "progresssection" > < a href = "5-ps2.html" > ps2< / a > < / li > < li class = "progresssection" > < a href = "5-ts.html" > ts< / a > < / li > < li class = "progresschapter" > < a href = "6-st.html" > 6< / a > < / li > < li class = "progresschapter" > < a href = "7-tm.html" > 7< / a > < / li > < li class = "progressnext" > < a href = "5-ps.html" > ❯ < / a > < / li > < / ul > < / div >
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< / nav > <!-- End of weave -->
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< / main >
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< / body >
< / html >