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// re2c $INPUT -o $OUTPUT -i --header lexer/state.h #include <assert.h> #include <stddef.h> #include "lexer/state.h" // the header is generated by re2c /*!header:re2c:on*/ struct LexerState { const char *str, *cur; /*!stags:re2c format = "const char *@@;"; */ }; /*!header:re2c:off*/ long lex(LexerState& st) { const char *t; /*!re2c re2c:header = "lexer/state.h"; re2c:yyfill:enable = 0; re2c:define:YYCTYPE = char; re2c:define:YYCURSOR = "st.cur"; re2c:tags = 1; re2c:tags:expression = "st.@@"; [a]* @t [b]* { return t - st.str; } */ } int main() { const char *s = "ab"; LexerState st = { s, s /*!stags:re2c format = ", NULL"; */ }; assert(lex(st) == 1); return 0; }