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25 lines
1.1 KiB
Plaintext
25 lines
1.1 KiB
Plaintext
title: ParameterParser
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modifier: colmbritton
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created: 20110211110654
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modified: 20110221143137
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tags: features
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creator: psd
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The ParameterParser is used in several places in TiddlyWiki:
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* to process the StartupParameters after the '#' in a TiddlyWiki URL
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* to process the DefaultTiddlers list
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* to process the parameters to Macros
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* to process tag lists when editing a tiddler
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It supports a list of parameters each of the form "name:value". For example:
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{{{
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name:John location:"Isle of Wight" [[dietary needs]]:none really:'yes, really'
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}}}
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Names and values that need to contain spaces may be quoted with single- or double-quotes or double-square brackets. The parser is generally tolerant of additional spaces.
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When processing macro parameters, names and values may also be quoted with double-braces which causes them to be evaluated as a [[JavaScript|http://en.wikipedia.org/wiki/JavaScript]] expression. For example:
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{{{
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title:{{window.title}}
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}}}
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The ParameterParser will cope with either the name or the value being omitted, and will substitute a specified default. This is how the StartupParameters work; the default parameter name is specified as 'open'.
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