required-attr ( tag name -- value )
Furnace framework » Furnace presentation layer » Chloe templates » Extending Chloe » Extending Chloe with custom tags

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Vocabulary
html.templates.chloe.syntax

Inputs

tag	a tag
name	a string

Outputs

value

a string

Word description
Extracts an attribute from a tag.

Errors
Throws an error if the attribute is not specified.

Definition

USING: kernel sequences xml.data ;

IN: html.templates.chloe.syntax

: required-attr ( tag name -- value )
    [ nip ] [ chloe-name attr ] 2bi or*
    [ " attribute is required" append throw ] unless ;