lex

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Lex and Yacc without Dynamic Memory Allocation

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.[详细]

2023-02-04 12:24 分类：问答
How to Compile Programs Built With Yacc and Lex?

My Yacc source is in pos.yacc and my Lex source is in pos1.lex, as shown. pos1.lex %{ #include \"y.tab.h\"[详细]

2023-02-04 03:00 分类：问答
Lex Yacc, should i tokenize character literals?

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[详细]

2023-02-02 11:07 分类：问答
How to fix a warning message associated with strlen() used in Yacc?

Please i need your help. Basically, I am facing this warning message upon compiling with gcc, and am not able to deduce the error:[详细]

2023-02-01 08:44 分类：问答
How can I send the yyleng of a matched string from Lex to Yacc?

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:[详细]

2023-02-01 03:15 分类：问答
How to convert the (yytext) from small letters to capital letters (in Lex & yacc)?

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.[详细]

2023-01-31 21:12 分类：问答
Is there any active Lex and Yacc IRC? [closed]

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[详细]

2023-01-31 18:55 分类：问答
Can someone provide syntax reference for these below?

%x ST_IN_SCRIPTING %x ST_DOUBLE_QUOTES %x ST_BACKQUOTE %x ST_HEREDOC %x ST_START_HEREDOC %x ST_END_HEREDOC[详细]

2023-01-31 15:14 分类：问答
How to write own parser for (f)lex?

I generated with flex a lexer. [ \\t\\n\\r\\v]/* skip whitespace */ [_a-zA-Z]([_a-zA-Z]|[0-9])*printf(\"IDENT\\n\");[详细]

2023-01-27 00:43 分类：问答
Operations with YACC in C for a LISP subset

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[详细]

2023-01-26 19:26 分类：问答