I\'m trying to write a parser using Parsec that will parse literate Haskell files, such as the following:
Mixing the lexer and parsing phases in one phase sometimes makes Parsec parsers less readable but also slows them down. One solution is to use Alex as a tokenizer and then Parsec as a parser of the to
I am playing with Parsec and I want to combine two parsers into one with the result put in a pair, and then feed i开发者_C百科t another function to operate on the parse result to write something like
I\'m going through Write Yourself a Scheme and am struck at the exercise 4 on this page. How do I go about this? I\'ve got this far, but have no idea whatsoever where the readHex is supposed to go, m
I\'m surprised that I could not find any info on this.I must be the only person having any trouble with it.
P开发者_开发百科arsec\'s parse pattern \"(some_input)\" input returns the parsed data (as I specified in pattern.
In my work I come across a lot of gnarly sql, and I had the bright idea of writing a program to parse the sql and print it out neatly.I made most of it pretty quickly, but I ran into a problem that I
I\'m trying to get this trivial parsec code to compile import Text.P开发者_Go百科arsec simple = letter
Is there (or is it possible to have开发者_运维问答) a reactive Parsec (or any other pure functional parser) in Haskell?
I\'m parsing an expression using Parsec and I want to keep track of variables开发者_运维百科 in these expressions using the user state in Parsec. Unfortunately I don\'t really get how to do it.
加载中,请稍侯......