trifecta-1.5.2: A modern parser combinator library with convenient diagnostics

Copyright(C) 2011-2015 Edward Kmett
LicenseBSD-style (see the file LICENSE)
MaintainerEdward Kmett <ekmett@gmail.com>
Stabilityexperimental
Portabilitynon-portable
Safe HaskellSafe
LanguageHaskell2010

Text.Trifecta.Delta

Description

 

Synopsis

Documentation

data Delta Source

Constructors

Columns !Int64 !Int64 
Tab !Int64 !Int64 !Int64 
Lines !Int64 !Int64 !Int64 !Int64 
Directed !ByteString !Int64 !Int64 !Int64 !Int64 

Instances

class HasDelta t where Source

Methods

delta :: t -> Delta Source

Instances

class HasBytes t where Source

Methods

bytes :: t -> Int64 Source

Instances

nextTab :: Int64 -> Int64 Source

Increment a column number to the next tabstop.

rewind :: Delta -> Delta Source

Rewind a Delta to the beginning of the line.

near :: (HasDelta s, HasDelta t) => s -> t -> Bool Source

Should we show two things with a Delta on the same line?

column :: HasDelta t => t -> Int64 Source

Retrieve the character offset within the current line from this Delta.

columnByte :: Delta -> Int64 Source

Retrieve the byte offset within the current line from this Delta.