Let\'s define a language: VAR := [0-9A-Za-z_]+ Exp := VAR VAR,\'=\',VAR \'(\', Exp, \')\' Exp, \'&\', Exp
idlist: idlist \',\' ID { $$.str=$3.str; $$.ptr=(idtype*)&$1; } ID{ $$.str=$1.str; 开发者_开发知识库$$.ptr=NULL;
The following grammar (where INTEGER is a sequence of digits) gives rise to a reduce/reduce conflict, because e.g. -4 can be reduced by expr -> -expr or expr -> num -> -INTEGER. In开发者_JAVA技巧 my g
yacc doesn\'t seem to like when my tokens are of a type that I defined. At the top of my grammar (.y) file in a %{ ... %} block, I include a header file that defines the following structure:
I\'m using Bison and Flex to make a reentrant scanner/parser pair but can\'t wrap my head around where everything is to be included and declared.
I want to create a parser of template engine using Flex & Bison. The thing is that I would like to parse only expressions within {{..}} and ${..}.
I have a simple rule in my开发者_如何学Go grammar which looks for sequence of whitespaces: ws: ws|\' \';
I am trying to create a parser with Bison (GNU bison 2.4.1) and flex (2.5.35) on my Ubuntu OS. I have something like this:
am developping a compiler using flex/bison. I have this warning in my build output. warning:type c开发者_开发问答lash (\'s\' \'\') on default action
I want to write bison syntax file for vim. I\'ve managed to write syntax rule for definition section. Now I\'m trying to compose syntax rule for bison rule. So, I have
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