Right way to parse chain of various binary functions with `Parsec`?
Jun 10, 2019 · It is true that Parsec has chainl and chainr to parse chains of either left-associative or right-associative operations (i.e. a -> a -> a). So I could quite easily parse something like x + y ...
Using Parsec to parse regular expressions - Stack Overflow
Jan 26, 2012 · You should use Parsec.Expr.buildExprParser; it is ideal for this purpose. You simply describe your operators, their precedence and associativity, and how to parse an atom, and the combinator builds the parser for you! You probably also want to add the ability to group terms with parens so that you can apply * to more than just a single literal.
Simply using parsec in python - Stack Overflow
Aug 6, 2019 · For the sake of convenience, we first define the characters we wish to match. parsec provides many types: letter(): matches any alphabetic character, string(str): matches any specified string str, space(): matches any whitespace character, spaces(): matches multiple whitespace characters, digit(): matches any digit, eof(): matches EOF flag of a ...
Newest 'parsec' Questions - Stack Overflow
Jun 4, 2024 · Stack Overflow | The World’s Largest Online Community for Developers
Parsec Connection Failure Error -10 and -11 - Stack Overflow
Oct 19, 2021 · There might be several reasons for these two errors, however the Parsec docs does not give possible solutions. In my case going to App & Features > Optional Features > Add Feature and then look for Media Feature Pack and install it, reboot and should work. I was able to discover this issue due to Rainway and Dixter failing because a .dll was missing regarding this …
Parsec vs Yacc/Bison/Antlr: Why and when to use Parsec?
Feb 21, 2011 · I'm new to Haskell and Parsec. After reading Chapter 16 Using Parsec of Real World Haskell, a question appeared in my mind: Why and when is Parsec better than other parser generators like Yacc/Bison/Antlr? My understanding is that Parsec creates a nice DSL of writing parsers and Haskell makes it very easy and expressive.
haskell - How to parse a line using Parsec? - Stack Overflow
Sep 19, 2013 · I'm using the parsing library Parsec to parse some text. I simply need to parse lines, which are strings of arbitrary characters, ending with a '\\n' or an eof when its at the end of the string. When
parsing - Parsec debugging - Stack Overflow
Feb 28, 2012 · I've been working with parsec and I have trouble debugging my code. For example, I can set a breakpoint in ghci, but I'm not sure how to see how much of the input has been consumed, or things like ...
haskell - In Parsec, is there a way to prevent lexeme from …
Sep 29, 2015 · All of the parsers in Text.Parsec.Token politely use lexeme to eat whitespace after a token. Unfortunately for me, whitespace includes new lines, which I want to use as expression terminators. Is...
parsing - Haskell/Parsec: how do I use Text.Parsec.Token with Text ...
The indents package for Haskell's Parsec provides a way to parse indentation-style languages (like Haskell and Python). It redefines the Parser type, so how do you use the token parser functions exported by Parsec's Text.Parsec.Token module, which are of the normal Parser type? Background Parsec is a parser combinator library, whatever that means.