compiler construction - flex Start Conditions (matching string literals) -

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compiler construction - flex Start Conditions (matching string literals) -

i'm implementing start status matching c-style strings in flex manual.

the segment i'm concerned is:

<str>\" { /* saw closing quote - done */ begin(initial); *string_buf_ptr = '\0'; /* homecoming string constant token type , * value parser */ }

i have no issue returning token type, i'm unsure how pass string value in situation. if print yytext when token returned, it's holding " terminator.

so how string's value?

thanks in advance; i'm new flex.

you not homecoming yytext homecoming pointer string_buf.

yytext contains terminator because content of lastly regular look matched state. in other cases (but terminator) of example, content of yytext copied string_buf (e.g. check lines *string_buf_ptr++=*yptr++;), buffer holds final string.

compiler-construction flex-lexer

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