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Preprocess.lex
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%{
#ifdef WIN32
#define YY_NO_UNISTD_H
#endif
#include "PreprocessState.h"
#include "PreprocessParser.h"
#ifdef WIN32
#define strdup _strdup
#pragma warning(disable:4018)
#define isatty(x) 0
#endif
#define PARSERSTATE ((PreprocessState*)yyget_extra(yyscanner))
#define YYLVAL ((YYSTYPE*)PARSERSTATE->GetLValue())
#define TOK(t) { return (t); }
#define TOKSTR(t, v) { YYLVAL->str = strdup(v); return (t); }
#define TOKSTR_NODUP(t, v) { YYLVAL->str = (v); return (t); }
%}
%option noyywrap
%%
[ \t\f]*
"/*" {
int c = yyinput(yyscanner);
while (c != 0)
{
if (c == '\n')
yylineno++;
if (c == '*')
{
if ((c = yyinput(yyscanner)) == '/')
break;
continue;
}
c = yyinput(yyscanner);
}
}
"//".*$
\n { yylineno++; PARSERSTATE->Append("\n"); PARSERSTATE->RequestLocation(); TOK(NEWLINE); }
\r { yylineno++; PARSERSTATE->Append("\n"); PARSERSTATE->RequestLocation(); TOK(NEWLINE); }
\r\n { yylineno++; PARSERSTATE->Append("\n"); PARSERSTATE->RequestLocation(); TOK(NEWLINE); }
\n\r { yylineno++; PARSERSTATE->Append("\n"); PARSERSTATE->RequestLocation(); TOK(NEWLINE); }
\\\n yylineno++;
\\\r yylineno++;
\\\r\n yylineno++;
\\\n\r yylineno++;
#[\ \t]*include[\ \t]*<[^<>\r\n]*> {
char* name = strchr(yytext, '<') + 1;
PARSERSTATE->IncludeFile(std::string(name, strlen(name) - 1));
}
#[\ \t]*include[\ \t]*\"[^\"\r\n]*\" {
char* name = strchr(yytext, '\"') + 1;
PARSERSTATE->IncludeFile(std::string(name, strlen(name) - 1));
}
#[ \t]*define[\ \t]*[[:alpha:]_][[:alnum:]_]* {
char* name = strstr(yytext, "define") + strlen("define");
while ((name[0] == ' ') || (name[0] == '\t'))
name++;
TOKSTR(DEFINE_NO_PARAMS, name)
}
#[ \t]*define[\ \t]*[[:alpha:]_][[:alnum:]_]*\( {
char* name = strstr(yytext, "define") + strlen("define");
while ((name[0] == ' ') || (name[0] == '\t'))
name++;
char* trimmed = strdup(name);
trimmed[strlen(trimmed) - 1] = 0;
TOKSTR_NODUP(DEFINE_PARAMS, trimmed)
}
#[ \t]*undef TOK(UNDEF_TOK)
#[ \t]*ifdef TOK(IFDEF_TOK)
#[ \t]*ifndef TOK(IFNDEF_TOK)
#[ \t]*else TOK(ELSE_TOK)
#[ \t]*endif TOK(ENDIF_TOK)
"-" TOKSTR(TOKEN, yytext)
"+" TOKSTR(TOKEN, yytext)
"*" TOKSTR(TOKEN, yytext)
"/" TOKSTR(TOKEN, yytext)
"%" TOKSTR(TOKEN, yytext)
"&" TOKSTR(TOKEN, yytext)
"|" TOKSTR(TOKEN, yytext)
"^" TOKSTR(TOKEN, yytext)
"-=" TOKSTR(TOKEN, yytext)
"+=" TOKSTR(TOKEN, yytext)
"*=" TOKSTR(TOKEN, yytext)
"/=" TOKSTR(TOKEN, yytext)
"%=" TOKSTR(TOKEN, yytext)
"&=" TOKSTR(TOKEN, yytext)
"|=" TOKSTR(TOKEN, yytext)
"^=" TOKSTR(TOKEN, yytext)
"<<=" TOKSTR(TOKEN, yytext)
">>=" TOKSTR(TOKEN, yytext)
"++" TOKSTR(TOKEN, yytext)
"--" TOKSTR(TOKEN, yytext)
"{" TOKSTR(TOKEN, yytext)
"}" TOKSTR(TOKEN, yytext)
"(" TOK(LPAREN)
")" TOK(RPAREN)
"[" TOKSTR(TOKEN, yytext)
"]" TOKSTR(TOKEN, yytext)
"=" TOKSTR(TOKEN, yytext)
"<" TOKSTR(TOKEN, yytext)
"<=" TOKSTR(TOKEN, yytext)
"==" TOKSTR(TOKEN, yytext)
"!=" TOKSTR(TOKEN, yytext)
">=" TOKSTR(TOKEN, yytext)
">" TOKSTR(TOKEN, yytext)
"~" TOKSTR(TOKEN, yytext)
"..." TOKSTR(TOKEN, yytext)
"." TOKSTR(TOKEN, yytext)
"->" TOKSTR(TOKEN, yytext)
":" TOKSTR(TOKEN, yytext)
"?" TOKSTR(TOKEN, yytext)
";" TOKSTR(TOKEN, yytext)
"," TOK(COMMA)
"||" TOKSTR(TOKEN, yytext)
"&&" TOKSTR(TOKEN, yytext)
"!" TOKSTR(TOKEN, yytext)
"<<" TOKSTR(TOKEN, yytext)
">>" TOKSTR(TOKEN, yytext)
"##" TOK(PASTE)
[0-9]+ TOKSTR(TOKEN, yytext)
[0-9]+LL TOKSTR(TOKEN, yytext)
0x[0-9a-fA-F]+ TOKSTR(TOKEN, yytext)
0x[0-9a-fA-F]+LL TOKSTR(TOKEN, yytext)
0b[0-1]+ TOKSTR(TOKEN, yytext)
0b[0-1]+LL TOKSTR(TOKEN, yytext)
[0-9]+\.[0-9]+(([eE][-+]?[0-9]+)?)f TOKSTR(TOKEN, yytext)
\.[0-9]+(([eE][-+]?[0-9]+)?)f TOKSTR(TOKEN, yytext)
[0-9]+\.(([eE][-+]?[0-9]+)?)f TOKSTR(TOKEN, yytext)
[0-9]+([eE][-+]?[0-9]+)f TOKSTR(TOKEN, yytext)
[0-9]+\.[0-9]+(([eE][-+]?[0-9]+)?) TOKSTR(TOKEN, yytext)
\.[0-9]+(([eE][-+]?[0-9]+)?) TOKSTR(TOKEN, yytext)
[0-9]+\.(([eE][-+]?[0-9]+)?) TOKSTR(TOKEN, yytext)
[0-9]+([eE][-+]?[0-9]+) TOKSTR(TOKEN, yytext)
\"([^\"\r\n]*(\\\")?)*\" TOKSTR(TOKEN, yytext)
\'([^\'\r\n]*(\\\')?)*\' TOKSTR(TOKEN, yytext)
[[:alpha:]_][[:alnum:]_]* {
if (PARSERSTATE->IsDefined(yytext))
TOKSTR(MACRO, yytext)
else
TOKSTR(ID, yytext);
}
. TOK(_ERROR)
<<EOF>> TOK(END)
%%