is it possible to have multiple expression in one state that are similar? I was hoping to group together a few expressions to make life easy for myself. i want to do something similar below but its no
I am writing a parser for delphi\'s dfm\'s files. The lexer looks like this: EXP ([Ee][-+]?[0-9]+) %% (\"#\"([0-9]{1,5}|\"$\"[0-9a-fA-F]{1,6})|\"\'\"([^\']|\'\')*\"\'\")+ {
When dealing with strings (it has its own state like comments) i need to find out if the next letter is a \" or not. If it is i dont end the string state. So what happens is i just dont end t开发者_如
I\'ve gone right back to basics to try and understand how the parser can match an input line such as \"asdf\", or any other jumble of characters, where there is no rule defined for this.
so i want to avoid global variables but i want to use Flex to tokenize input. i want to know if it is possible to pass a value to yylex so that i can get rid of global s.
I\'m working on a research project to automatically modify code to include advanced mathematical concepts (like adding random effects into a loop or encapsulating an existing function with a new funct
I am using Flex/Bison/C++ to evaluate an expression Here is a sample bison file string res; yy_scan_string(expression.c_str());
I want to ask you a question about Flex, the program for parsing code. Supposing I have an instruction like this one, in the rules part:
I have a grammar that has two different possibilities when parsing \'if\' expr \'then\'. There\'s a simple \"assignment\", such as if foo then bar=1; else bar=0;then there\'s what I\'m calling an \"if
开发者_高级运维In my programming project I want to parse command line attributes using flex/bison. My program is called like this:
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