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<!-- Weave of 'Enumerated Constants' generated by Inweb -->
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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "index.html" > inweb< / a > < / li > < li > < a href = "index.html#2" > Chapter 2: Parsing a Web< / a > < / li > < li > < b > Enumerated Constants< / b > < / li > < / ul > < / div >
< p class = "purpose" > To define sequentially numbered values for families of constants.< / p >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > The idea here is that each enumeration set is a sequence of named constants
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with a given postfix: for example, < span class = "extract" > < span class = "extract-syntax" > HARRY_ST< / span > < / span > , < span class = "extract" > < span class = "extract-syntax" > NEVILLE_ST< / span > < / span > , < span class = "extract" > < span class = "extract-syntax" > ANGELINA_ST< / span > < / span >
form the < span class = "extract" > < span class = "extract-syntax" > *_ST< / span > < / span > set. By definition, the postfix part is the portion of the
name following the final underscore, so in this case < span class = "extract" > < span class = "extract-syntax" > ST< / span > < / span > .
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< / p >
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< p class = "commentary" > Each set of constants begins at a given value (typically 0) and then
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increments sequentially in definition order.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< 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" > enumeration_set< / 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" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > postfix< / 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" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > stub< / 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" > first_value< / 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" > next_free_value< / 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" > source_line< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > last_observed_at< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CLASS_DEFINITION< / span >
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< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > enumeration_set< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
< ul class = "endnotetexts" > < li > The structure enumeration_set is private to this section.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > There won't be enough sets to make a hash table worth the overhead, so
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compare all against all:
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > enumeration_set< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Enumerations::find< / 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" > Enumerations::find< / span > < / span > :< br / > < a href = "2-ec.html#SP3" > § 3< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > post< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > enumeration_set< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > enumeration_set< / 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 > < a href = "../foundation-module/4-sm.html#SP19" class = "function-link" > < span class = "function-syntax" > Str::eq< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > post< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > postfix< / 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" > es< / 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" > 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 = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > The following is called when an enumeration is found. If < span class = "extract" > < span class = "extract-syntax" > from< / span > < / span > has a
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sensible value, this is the start of a new enumeration set; otherwise it's
a further constant in what ought to be an existing set.
< / 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" > Enumerations::define< / 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" > Enumerations::define< / span > < / span > :< br / > The Parser - < a href = "2-tp.html#SP1_1_7_5_1_7" > § 1.1.7.5.1.7< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > symbol< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > source_line< / 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" > pf< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "2-ec.html#SP3_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Find the postfix in this symbol name< / span > < span class = "named-paragraph-number" > 3.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > enumeration_set< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > = < / span > < a href = "2-ec.html#SP2" class = "function-link" > < span class = "function-syntax" > Enumerations::find< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pf< / 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" > from< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "named-paragraph-container code-font" > < a href = "2-ec.html#SP3_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Continue existing set< / span > < span class = "named-paragraph-number" > 3.2< / span > < / a > < / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "2-ec.html#SP3_3" class = "named-paragraph-link" > < span class = "named-paragraph" > Begin new set< / span > < span class = "named-paragraph-number" > 3.3< / span > < / a > < / 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" > pf< / 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" > es< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > last_observed_at< / 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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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP3_1" class = "paragraph-anchor" > < / a > < b > § 3.1. < / b > So for instance < span class = "extract" > < span class = "extract-syntax" > HARRY_ST< / span > < / span > to < span class = "extract" > < span class = "extract-syntax" > ST< / span > < / span > :
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Find the postfix in this symbol name< / span > < span class = "named-paragraph-number" > 3.1< / 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 > < span class = "reserved-syntax" > match_results< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > mr< / span > < span class = "plain-syntax" > = < / span > < a href = "../foundation-module/4-pm.html#SP9" class = "function-link" > < span class = "function-syntax" > Regexp::create_mr< / span > < / a > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "../foundation-module/4-pm.html#SP10" class = "function-link" > < span class = "function-syntax" > Regexp::match< / span > < / a > < span class = "plain-syntax" > (& < / span > < span class = "identifier-syntax" > mr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > symbol< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "string-syntax" > "%c*_(%C+?)"< / span > < span class = "plain-syntax" > )) < / span > < a href = "../foundation-module/4-sm.html#SP17" class = "function-link" > < span class = "function-syntax" > Str::copy< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > mr< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > exp< / span > < span class = "plain-syntax" > [0]);< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
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< span class = "plain-syntax" > < / span > < a href = "1-pc.html#SP8" class = "function-link" > < span class = "function-syntax" > Main::error_in_web< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "enumeration constants must belong to a _FAMILY"< / 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" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pf< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "BOGUS"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < a href = "../foundation-module/4-pm.html#SP9" class = "function-link" > < span class = "function-syntax" > Regexp::dispose_of< / span > < / a > < span class = "plain-syntax" > (& < / span > < span class = "identifier-syntax" > mr< / span > < span class = "plain-syntax" > );< / span >
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< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "2-ec.html#SP3" > § 3< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP3_2" class = "paragraph-anchor" > < / a > < b > § 3.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Continue existing set< / span > < span class = "named-paragraph-number" > 3.2< / 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" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > es< / 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" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > stub< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "(%S+"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > stub< / 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" > "%d"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next_free_value< / 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" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > stub< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > ")"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < a href = "1-pc.html#SP8" class = "function-link" > < span class = "function-syntax" > Main::error_in_web< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "this enumeration _FAMILY is unknown"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "plain-syntax" > );< / span >
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< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "2-ec.html#SP3" > § 3< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP3_3" class = "paragraph-anchor" > < / a > < b > § 3.3. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Begin new set< / span > < span class = "named-paragraph-number" > 3.3< / 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" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > ) < / span > < a href = "1-pc.html#SP8" class = "function-link" > < span class = "function-syntax" > Main::error_in_web< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "this enumeration _FAMILY already exists"< / 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 = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > enumeration_set< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > postfix< / span > < span class = "plain-syntax" > = < / span > < a href = "../foundation-module/4-sm.html#SP3" class = "function-link" > < span class = "function-syntax" > Str::duplicate< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pf< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > stub< / 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 = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "../foundation-module/4-sm.html#SP8" class = "function-link" > < span class = "function-syntax" > Str::len< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > ) < < / span > < span class = "constant-syntax" > 8< / span > < span class = "plain-syntax" > ) & & < / span >
< span class = "plain-syntax" > ((< / span > < a href = "../foundation-module/4-pm.html#SP10" class = "function-link" > < span class = "function-syntax" > Regexp::match< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "string-syntax" > "%d+"< / span > < span class = "plain-syntax" > )) ||< / span >
< span class = "plain-syntax" > (< / span > < a href = "../foundation-module/4-pm.html#SP10" class = "function-link" > < span class = "function-syntax" > Regexp::match< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "string-syntax" > "-%d+"< / span > < span class = "plain-syntax" > )))) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_value< / span > < span class = "plain-syntax" > = < / span > < a href = "../foundation-module/4-sm.html#SP7" class = "function-link" > < span class = "function-syntax" > Str::atoi< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next_free_value< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_value< / span > < span class = "plain-syntax" > + < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > stub< / span > < span class = "plain-syntax" > = < / span > < a href = "../foundation-module/4-sm.html#SP3" class = "function-link" > < span class = "function-syntax" > Str::duplicate< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_value< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next_free_value< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / 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" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > stub< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "(%S+"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > stub< / 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" > "%d"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_value< / 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" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > stub< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > ")"< / span > < span class = "plain-syntax" > );< / span >
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< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "2-ec.html#SP3" > § 3< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP4" class = "paragraph-anchor" > < / a > < b > § 4. < / b > For each set, a further constant is defined to give the range; for example,
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we would have < span class = "extract" > < span class = "extract-syntax" > NO_DEFINED_ST_VALUES< / span > < / span > set to 3. This is notionally placed in
the code at the last line on which an < span class = "extract" > < span class = "extract-syntax" > *_ST< / span > < / span > value was defined.
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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" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Enumerations::define_extents< / 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" > Enumerations::define_extents< / span > < / span > :< br / > The Tangler - < a href = "3-tt.html#SP1_1_1" > § 1.1.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > tangle_target< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > target< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > programming_language< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > lang< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > enumeration_set< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > enumeration_set< / 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" > symbol< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > value< / 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" > symbol< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "NO_DEFINED_%S_VALUES"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > postfix< / 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" > value< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%d"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next_free_value< / span > < span class = "plain-syntax" > - < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_value< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-lm.html#SP10" class = "function-link" > < span class = "function-syntax" > LanguageMethods::start_definition< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > lang< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > symbol< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > value< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > last_observed_at< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > owning_section< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > last_observed_at< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-lm.html#SP10" class = "function-link" > < span class = "function-syntax" > LanguageMethods::end_definition< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > lang< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > last_observed_at< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > owning_section< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > es< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > last_observed_at< / 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" > symbol< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > value< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< nav role = "progress" > < div class = "progresscontainer" >
< ul class = "progressbar" > < li class = "progressprev" > < a href = "2-tgs.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "M-iti.html" > M< / a > < / li > < li class = "progresschapter" > < a href = "P-htpw.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-bsc.html" > 1< / a > < / li > < li class = "progresscurrentchapter" > 2< / li > < li class = "progresssection" > < a href = "2-tr.html" > tr< / a > < / li > < li class = "progresssection" > < a href = "2-lc.html" > lc< / a > < / li > < li class = "progresssection" > < a href = "2-tp.html" > tp< / a > < / li > < li class = "progresssection" > < a href = "2-pm.html" > pm< / a > < / li > < li class = "progresssection" > < a href = "2-tgs.html" > tgs< / a > < / li > < li class = "progresscurrent" > ec< / li > < li class = "progresssection" > < a href = "2-pn.html" > pn< / a > < / li > < li class = "progresschapter" > < a href = "3-ta.html" > 3< / a > < / li > < li class = "progresschapter" > < a href = "4-pl.html" > 4< / a > < / li > < li class = "progresschapter" > < a href = "5-wt.html" > 5< / a > < / li > < li class = "progresschapter" > < a href = "6-mkf.html" > 6< / a > < / li > < li class = "progressnext" > < a href = "2-pn.html" > ❯ < / a > < / li > < / ul > < / div >
< / nav > <!-- End of weave -->
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< / main >
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< / body >
< / html >
