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Text.XML.HXT.DTDValidation.AttributeValueValidation

Portability | portable
Stability | experimental
Maintainer | Uwe Schmidt (uwe@fh-wedel.de)

Description

This module provides functions for validating attributes.

The main functions are:

- Check if the attribute value meets the lexical constraints of its type
- Normalization of an attribute value

Synopsis

checkAttributeValue :: XmlTrees -> XmlTree -> XmlArrow
normalizeAttributeValue :: Maybe XmlTree -> String -> String

Documentation

checkAttributeValue :: XmlTrees -> XmlTree -> XmlArrow | Source

Checks if the attribute value meets the lexical constraints of its type.

- 1.parameter dtdPart : the children of the `DOCTYPE` node
- 2.parameter attrDecl : the declaration of the attribute from the DTD
- returns : a function which takes an element (XTag or XDTD ATTLIST), checks if the attribute value meets the lexical constraints of its type and returns a list of errors

normalizeAttributeValue :: Maybe XmlTree -> String -> String | Source

Normalizes an attribute value with respect to its type. (3.3.3 / p.29 in Spec)

- 1.parameter attrDecl : the declaration of the attribute from the DTD. Expected is a list. If the list is empty, no declaration exists.
- 2.parameter value : the attribute value to be normalized
- returns : the normalized value

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