> On 7 Dec 2017, at 21:14, Harsha Sharma <[email protected]> wrote: > > On Fri, Dec 8, 2017 at 1:17 AM, Hans Åberg <[email protected]> wrote: >> >>> On 7 Dec 2017, at 18:59, Harsha Sharma <[email protected]> wrote: >>> >>> I'm looking for a way to parse input string and input file (pushing >>> buffer state created with yy_scan_string to buffer state created with >>> yy_create_buffer to parse input file). It either causes segmentation >>> fault or parses either the string or the input file. >> >> The string pointed to (in a lexer generated by Flex) must be copied before >> passed on elsewhere, as it is just a pointer in a buffer, temporarily >> null-terminated. >> > This is what I'm exactly trying to do .
In the .l file, the string pointed to by yytext of length yyleng must be copied. Does it do that? > I have a string passed from > command line which needs to be parsed 'define test="foo"' and input > file references this variable. > Same thing can be done by prepending this line in input file 'define > test="foo"' but I want to have a command line option for the same. Can you read the input as a stream instead of first putting it into a string? _______________________________________________ [email protected] https://lists.gnu.org/mailman/listinfo/help-bison
