Package org.drools.drl.parser.antlr4

Class Antlr4ParserStringUtils

java.lang.Object

org.drools.drl.parser.antlr4.Antlr4ParserStringUtils

public class Antlr4ParserStringUtils
extends Object

Collection of String utilities used by antlr4 DRLParser.

Method Summary

Modifier and Type	Method	Description
static String	extractNamedConsequenceName(String namedConsequenceThen)	Extract name from "then[name]" or "then [ name ]" of RHS_NAMED_CONSEQUENCE_THEN
static String	getTextPreservingWhitespace(List<? extends org.antlr.v4.runtime.ParserRuleContext> ctx)	Get text from List of ParserRuleContext's CharStream without trimming whitespace
static String	getTextPreservingWhitespace(org.antlr.v4.runtime.ParserRuleContext ctx)	Get text from ParserRuleContext's CharStream without trimming whitespace
static String	getTokenTextPreservingWhitespace(org.antlr.v4.runtime.ParserRuleContext ctx, org.antlr.v4.runtime.TokenStream tokenStream)	Get text from ParserRuleContext's CharStream without trimming whitespace tokenStream is required to get hidden channel token (e.g.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getTextPreservingWhitespace

public static String getTextPreservingWhitespace(org.antlr.v4.runtime.ParserRuleContext ctx)

Get text from ParserRuleContext's CharStream without trimming whitespace

getTextPreservingWhitespace

public static String getTextPreservingWhitespace(List<? extends org.antlr.v4.runtime.ParserRuleContext> ctx)

Get text from List of ParserRuleContext's CharStream without trimming whitespace

getTokenTextPreservingWhitespace

public static String getTokenTextPreservingWhitespace(org.antlr.v4.runtime.ParserRuleContext ctx,
 org.antlr.v4.runtime.TokenStream tokenStream)

Get text from ParserRuleContext's CharStream without trimming whitespace tokenStream is required to get hidden channel token (e.g. whitespace). Unlike getTextPreservingWhitespace, this method reflects Lexer normalizeString

extractNamedConsequenceName

public static String extractNamedConsequenceName(String namedConsequenceThen)

Extract name from "then[name]" or "then [ name ]" of RHS_NAMED_CONSEQUENCE_THEN