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📄 syntax.mldoc

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<!-- ML-Doc/syntax-sig.mldoc --><!-- Entities.sgml entry <!ENTITY REGEXP-SYNTAX SDATA "../syntax-sig.sml"> --><!DOCTYPE ML-DOC SYSTEM><COPYRIGHT OWNER="Bell Labs, Lucent Technologies" YEAR=1998><VERSION VERID="1.0" YEAR=1998 MONTH=6 DAY=3><TITLE>The RegExpSyntax structure</TITLE><INTERFACE><HEAD>The <CD/RegExpSyntax/ structure</HEAD><!-- optional SEEALSO; uncomment to use     --><!-- <SEEALSO>    --><!--   non-empty list of XREFS here   --><!-- </SEEALSO>    --><PP>This structure implements the abstract syntax for regular expressionsto which the concrete syntax translates and that is recognized bymatching engines. <PP><STRUCTURE STRID="RegExpSyntax">  <SIGBODY SIGID="REGEXP_SYNTAX" FILE=REGEXP-SYNTAX>    <SPEC>      <EXN>CannotParse    <SPEC>      <EXN>CannotCompile    <SPEC>      <SUBSTRUCT>CharSet<ID>ORD_SET        <WHERETYPE><ID>Key.ord_key</ID><TY>char</WHERETYPE>      </SUBSTRUCT>    <SPEC>      <DATATYPE><ID>syntax        <CONS>Group<TY>syntax        <CONS>Alt<TY>syntax list        <CONS>Concat<TY>syntax list        <CONS>Interval<TY>(syntax * int * int option)        <CONS>Option<TY>syntax        <CONS>Star<TY>syntax        <CONS>Plus<TY>syntax        <CONS>MatchSet<TY>CharSet.set        <CONS>NonmatchSet<TY>CharSet.set        <CONS>Char<TY>char        <CONS>Begin        <CONS>End      </DATATYPE>    <SPEC>      <VAL>addRange<TY>(CharSet.set * char * char) -> CharSet.set        <COMMENT>          <PROTOTY>          addRange (<ARG/s/, <ARG/c1/, <ARG/c2/)          </PROTOTY>          adds the range of characters from <ARG/c1/ to <ARG/c2/ tothe character set <ARG/s/.    <SPEC>      <VAL>allChars<TY>CharSet.set        <COMMENT>          <PROTOTY>          allChars          </PROTOTY>           is a character set containing all the characters.</STRUCTURE></INTERFACE>

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