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Fix PLI/DPI user defined system task/function grammar (#4587) (#4588)

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According to 1800-2017 36.3, 1800-2017 A.9.3, 1364-2005 20.2 and 1364-2005 A.9.3, user defined system task and function identifiers can use the same character set for the second character as all the following characters.
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Quentin Corradi 2023-10-21 07:43:49 +01:00 committed by GitHub
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commit 26e3785963
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docs/CONTRIBUTORS
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@ -137,6 +137,7 @@ Pierre-Henri Horrein
Pieter Kapsenberg
Piotr Binkowski
Qingyao Sun
Quentin Corradi
Rafal Kapuscik
Raynard Qiao
Richard Myers

2
src/verilog.l
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@ -630,7 +630,7 @@ vnum {vnum1}|{vnum2}|{vnum3}|{vnum4}|{vnum5}
/* Default PLI rule */
<V95,V01NC,V01C,V05,VA5,S05,S09,S12,S17,SAX>{
"$"[a-zA-Z_$][a-zA-Z0-9_$]* { const string str (yytext, yyleng);
"$"[a-zA-Z0-9_$]+ { const string str (yytext, yyleng);
yylval.strp = PARSEP->newString(AstNode::encodeName(str));
FL; return yaD_PLI;
}