I would like to be able to parse a non-empty, one-or-many element, comma-delimited (and optionally parenthesized) list using flex/bison parse ru开发者_运维技巧les.
I am writing a parser for quite complicated config files that make use of indentation etc. I decided to use Lex to break input into tokens as it seems to make life easier. The problem is that I cannot
I\'m trying to follow Appel\'s \"Modern Compiler Implementation in ML\" and am writing the lexer using Ocamllex.
So I have this definition in a header file (actually the y.tab.h file): typedef enum yytokentype { TOKEN_UNKNOWN = 1000,
The terms AST (Abstract Syntax Tree), parse tree and derivation tree are bandied about by different people when referring to the result of parsing texts conforming to a grammar. Assuming we are talkin
My lex file has: word [^{}\"=,\\t\\n@\\\\ ]+ \\{{ return(LBRACE); } \\}{ return(RBRACE); } {word}{ yylval = yytext; printf(\"WORD=%s\",yytext); return(WORD);
I\'m trying to parse Bibtex files using lex/yacc. Strings in the bibtex database can be surrounded by quotes \"...\" or with braces - {...}
if write 1=a in the sample c program, it doesnt detect it as an error. How do i solve this problem? Also how do i do global and local scope of variables. Thanks if anyone can solve it
When I compile Lex\'s output as C++, I get these errors: $ make [6%] Building CXX object lib/CMakeFiles/lang.dir/lex_lexer.cpp.o
When I have to parse text (e.g. config files or other rather simple/descriptive languages), there are several solutions that come to my mind:
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