I am currently parsing a bunch of mails and want to get wor开发者_如何学运维ds and other interesting tokens out of mails (even with spelling errors or combination of characters and letters, like \"zeb
lex and yacc are supposed to be used together. Which ones is the scanner and which one is the parser? Which one creates a scanner and which one create开发者_运维技巧s a parser?Lex (flex) is the lexi
Does anybody know why, at the end of section 7.6 of the ECMA-262, 5th Edition specification, the nonterminals UnicodeLetter, UnicodeCombiningMark, UnicodeDigit, UnicodeconnectorPunctuation, and Unicod
Let\'s say we have the following in vim atm: int main () { printf(\"hello\"); return 0; } In vim, w moves a word to the right, but what exactly constitutes a \'word\'?
I\'m using yacc to make a symbol table for a made-up language grammar. Column 1 will have either \"variable\" or \"function.\"
I\'m trying to write a string matching rule in ANTLRWorks, and I need开发者_如何学运维 to match either escaped quotes or any non quote character. I can match escaped quotes but I\'m having trouble wit
When I redirect input to my yacc p开发者_StackOverflowrogram from an input file, after it finishes parsing the file I want the yacc parser to print a summary of what it did.I want it to do the same th
What is the purpose of union in the yacc file?Is it directly related to yylval in the fl开发者_运维技巧ex file?If you don\'t use yylval, then you don\'t need to use union?The purpose of the union is t
I wrote a stub for a grammar (only matches comments so far), and it\'s giving me the error: syntax error: invalid char literal: <INVALID>
I want to pass the actual string of a token.If I have a token called ID, then I want my yacc file to actually know what ID is called.I thing I have to pass a string using yylval to the yacc file from
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