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23 lines
1.1 KiB
Plaintext
23 lines
1.1 KiB
Plaintext
created: 20150219175930000
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modified: 20230107165037493
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tags: Concepts [[WikiText Parser Modes]]
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title: Pragma
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type: text/vnd.tiddlywiki
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A <<.def pragma>> is a special component of WikiText that provides control over the way the remaining text is parsed.
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Pragmas occupy lines that start with `\`. They can only appear at the start of the text, but blank lines are allowed between them. If a pragma line appears in the main body of the text, it is treated as if it was ordinary text.
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<<.from-version "5.2.6">> Pragmas can have preceding optional whitespace characters.
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The following pragmas are available:
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;`\define`
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: for defining a [[macro|Macros]]
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;`\rules`
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: for adjusting the set of rules used to parse the text
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;`\whitespace trim` or `\whitespace notrim`
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: <<.from-version "5.1.15">> Control whether whitespace is trimmed from the start and end of text runs (the default is ''notrim''). This setting can be useful when the whitespace generated by linebreaks disturbs formatting
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;`\import <filter-expression>`
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: <<.from-version "5.1.18">> for importing macro definitions from tiddlers identified by a filter expression
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