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created: 20150102163222184
modified: 20150102172016663
title: $:/plugins/tiddlywiki/railroad/readme
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This plugin provides a `<$railroad>` widget for generating railroad syntax diagrams as SVG images. It is based on [[a library by Tab Atkins|https://github.com/tabatkins/railroad-diagrams]], and has been extended to allow components of a diagram to function as links.
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The content of the `<$railroad>` widget is ignored.
|!Attribute |!Description |
|text |Text in a special syntax that defines the diagram's layout |
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|arrow |If set to `no`, repeat paths do not have an arrow on them. The default is `yes` |
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|mode |If set to `debug`, the diagram will display its internal tree structure. The default mode is `svg` |
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The entire `text` can be transcluded from another tiddler:
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```
<$railroad tiddler={{diagram}}>
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```
Alternatively, the diagram syntax allows specific parts of the `text` to be transcluded from other tiddlers.
