https://github.com/vlsi/iec61131-parser

Parsers for IEC 61131-3 grammar
https://github.com/vlsi/iec61131-parser

Last synced: 2 days ago
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Parsers for IEC 61131-3 grammar

• Host: GitHub
• URL: https://github.com/vlsi/iec61131-parser
• Owner: vlsi
• Created: 2016-01-17T16:24:03.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2016-01-17T21:34:31.000Z (over 8 years ago)
• Last Synced: 2024-04-16T19:01:59.884Z (6 months ago)
• Language: ANTLR
• Size: 8.79 KB
• Stars: 31
• Watchers: 10
• Forks: 15
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
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IEC61131 parsers

================

About

-----

This is a ANTLRv4 grammar for IEC61131-3 languages.

The main aim is to parse ST grammar.

Usage

-----

Add maven dependency:

```xml

    com.github.vlsi.iec61131

    parser

    1.0.0-SNAPSHOT

```

Sample

------

```java

ANTLRInputStream is = new ANTLRInputStream("FUNCTION abc : BOOL VAR_TEMP temp: INT; END_VAR");

IEC61131Lexer lex = new IEC61131Lexer(is);

CommonTokenStream ts = new CommonTokenStream(lex);

IEC61131Parser p = new IEC61131Parser(ts);

IEC61131Parser.FunctionContext function = p.function();

Assert.assertEquals(function.name.getText(), "abc", "function name");

Assert.assertEquals(function.var_block().size(), 1, "1 block with variables");

IEC61131Parser.Var_blockContext varBlock = function.var_block(0);

Assert.assertEquals(varBlock.temp, true, "var_temp -> temp.true");

Assert.assertEquals(varBlock.variable_declaration().size(), 1, "1 variable");

IEC61131Parser.Variable_declarationContext var =

    varBlock.variable_declaration(0);

Assert.assertEquals(var.name.getText(), "temp", "variable name");

Assert.assertEquals(var.type.getText(), "INT", "variable type");

```

License

-------

This library is distributed under terms of MIT license.

Changelog

---------

v1.0.0

* Initial version

Author

------

Vladimir Sitnikov