I\'m in the process of designing software to run in an embedded environment where the use of dynamic memory is prohibited.Lex and Yacc are well suited for the application.
My Yacc source is in pos.yacc and my Lex source is in pos1.lex, as shown. pos1.lex %{ #include \"y.tab.h\"
I know, poorly worded question not sure how else to ask though. I always seem to end up in the error branch regardless of what i\'m entering and can\'t figure out where i\'m screwing this up. i\'m us
Please i need your help. Basically, I am facing this warning message upon compiling with gcc, and am not able to deduce the error:
Please i am trying to pass the yyleng of a matched string from my (.l) file to the (.y) file. Here is a sample of the issue:
Please, how can i convert a matched string in lex (yytext) from small letters to capital letters? If 开发者_JS百科you can provide me an example i would be grateful.
开发者_如何学C As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,or expertise, but this question will likely sol
%x ST_IN_SCRIPTING %x ST_DOUBLE_QUOTES %x ST_BACKQUOTE %x ST_HEREDOC %x ST_START_HEREDOC %x ST_END_HEREDOC
I generated with flex a lexer. [ \\t\\n\\r\\v]/* skip whitespace */ [_a-zA-Z]([_a-zA-Z]|[0-9])*printf(\"IDENT\\n\");
Is there any way to add to 2 or more operands in a YACC project using the C language to build a parser for a LISP subset, this is the grammar
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