Not what you asked for (each keystroke individually), but look into
#define YY_USER_ACTION It has ytext and yyleng for you. On 4/26/19 11:26, Rainer Gerhards wrote:
Hi there, sorry if there is an obvious solution - I didn't find it. I have a config file parser created with flex/bison. It includes "include" functionality. Includes works with files as well as user-provided strings (via yy_scan_buffer()). As an end-user debugging tool, I would like to optionally generate a single output file which contains the full configuration with the includes expanded. E.g. I have file1: f1l1 f1l2 include file 2 f1l3 include text "included text" f1l4 file2: f2l1 Output file should be: f1l1 f1l2 f2l1 f1l3 included text f1l4 I would like to generate that output file during regular configuration processing. So in short I need a capability to see each character that flex processes at exactly the time it processes the character. I did not find a documented override to do this. Is there any way to handle this with flex? Any help is deeply appreciated. Rainer _______________________________________________ help-bison@gnu.org https://lists.gnu.org/mailman/listinfo/help-bison
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