7ccd5d8e83
ysyx_22040000 李心杨 Linux calcite 6.1.71 #1-NixOS SMP PREEMPT_DYNAMIC Fri Jan 5 14:18:41 UTC 2024 x86_64 GNU/Linux 16:27:37 up 2 days 5:22, 2 users, load average: 0.21, 0.59, 0.70
14 lines
357 B
Text
14 lines
357 B
Text
%{
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#include <addrexp.h>
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%}
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%option noyywrap
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%%
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$[a-zA-Z] { }
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0[xX][0-9a-fA-F]+ { yylval = strtoul(yytext, NULL, 16); return HEX_NUMBER; }
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[0-9]+ { yylval = strtoul(yytext, NULL, 10); return NUMBER; }
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[+\-*/()] { return *yytext; }
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[ \t] { }
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. { printf("Unexpected character: %s\n", yytext); }
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%%
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