HaXml-1.20.1: Utilities for manipulating XML documents Source code Contents Index

Text.XML.HaXml.Xtract.Parse

Description

A parser for the Xtract command-language. (The string input is tokenised internally by the lexer lexXtract.) See http://www.haskell.org/HaXml/Xtract.html for the grammar that is accepted.

Synopsis

parseXtract :: [Token] -> DFilter i xtract :: (String -> String) -> String -> CFilter i

Documentation

parseXtract :: [Token] -> DFilter i Source

The cool thing is that the Xtract command parser directly builds a higher-order DFilter (see Text.XML.HaXml.Xtract.Combinators) which can be applied to an XML document without further ado. (parseXtract halts the program if a parse error is found.)

xtract :: (String -> String) -> String -> CFilter i Source

To convert an Xtract query into an ordinary HaXml combinator expression. First arg is a tag-transformation function (e.g. map toLower) applied

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