https://github.com/marcioAlmada/railroad-diagram-generator

This is a tool for generating railroad diagrams.
https://github.com/marcioAlmada/railroad-diagram-generator

Last synced: 5 days ago
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This is a tool for generating railroad diagrams.

• Host: GitHub
• URL: https://github.com/marcioAlmada/railroad-diagram-generator
• Owner: marcioAlmada
• License: gpl-2.0
• Created: 2014-09-14T20:43:18.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2018-01-19T15:56:16.000Z (almost 7 years ago)
• Last Synced: 2024-11-01T02:34:52.833Z (8 days ago)
• Language: C++
• Size: 87.9 KB
• Stars: 12
• Watchers: 3
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: COPYING

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• awesome-starred - marcioAlmada/railroad-diagram-generator - This is a tool for generating railroad diagrams. (others)

README

        
# railroad-diagram-generator

A tool for generating railroad diagrams. The EBNF grammar used by the tool is described in doc/introduction/grammar.txt, and you can find some samples under directory sample/.

## Sample

The EBNF grammar of `EBNF`:

    syntax      ::= ( rule )+

    rule        ::= 'id' ( '::=' | '->' ) expression

    expression  ::= term ( '|' term )* ( '|' | )

    term        ::= ( factor )+

    factor      ::= ( 'id' | 'text' | '(' expression ')' ) ( '+' | '*' | )

    id is any string of alpha([a-zA-Z]) characters or number([0-9]) characters or underscores ('_')

    text is any double-quoted string("...") or signle-quoted string('...') without newline('\n')

The railroad diagrams of `EBNF`:

![railroad diagrams](./doc/introduction/railroad_diagrams.png)