This is a ANTLRv4 grammar for IEC61131-3 languages. The main aim is to parse ST grammar.
Add maven dependency:
<dependency>
<groupId>com.github.vlsi.iec61131</groupId>
<artifactId>parser</artifactId>
<version>1.0.0-SNAPSHOT</version>
</dependency>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");This library is distributed under terms of MIT license.
v1.0.0
- Initial version
Vladimir Sitnikov [email protected]
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