56 lines
943 B
LLVM
56 lines
943 B
LLVM
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%{
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#include "rd_parser.hh"
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#define YY_DECL \
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yy::rd_parser::token_type rd_yylex (yy::rd_parser::semantic_type *yylval)
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#define yyterminate() return token::END
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typedef yy::rd_parser::token token;
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typedef yy::rd_parser::token_type token_type;
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%}
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%option noyywrap nounput batch prefix="rd_yy"
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%%
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-?[0-9]+ {
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yylval->integer = atoi (yytext);
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return token::INT;
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}
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[a-zA-Z]+ {
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if (!strcmp (yytext, "h"))
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return token::H;
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else if (!strcmp (yytext, "t"))
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return token::T;
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else if (!strcmp (yytext, "in"))
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{
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yylval->inside = 1;
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return token::IN;
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}
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else if (!strcmp (yytext, "out"))
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{
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yylval->inside = 0;
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return token::OUT;
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}
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else
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{
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fprintf (stderr, "rd_parser: unknown identifier `%s'\n", yytext);
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exit (EXIT_FAILURE);
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}
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}
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[\t\r\n ] /* ignore */
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. { return token_type (yytext[0]); }
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%%
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void
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rd_scan_string (const char *s)
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{
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rd_yy_scan_string (s);
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}
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