org.antlr.codegen

Class ObjCTarget

java.lang.Object

org.antlr.codegen.Target

org.antlr.codegen.ObjCTarget

public class ObjCTarget
extends Target

Field Summary

Fields inherited from class org.antlr.codegen.Target

targetCharValueEscape

Constructor Summary

Constructors

Constructor and Description
ObjCTarget()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	genRecognizerHeaderFile(Tool tool, CodeGenerator generator, Grammar grammar, org.stringtemplate.v4.ST headerFileST, String extName)
String	getTargetCharLiteralFromANTLRCharLiteral(CodeGenerator generator, String literal) Convert from an ANTLR char literal found in a grammar file to an equivalent char literal in the target language.
String	getTargetStringLiteralFromANTLRStringLiteral(CodeGenerator generator, String literal) Convert from an ANTLR string literal found in a grammar file to an equivalent string literal in the target language.
String	getTokenTextAndTypeAsTargetLabel(CodeGenerator generator, String text, int tokenType) Target must be able to override the labels used for token types.
String	getTokenTypeAsTargetLabel(CodeGenerator generator, int ttype) If we have a label, prefix it with the recognizer's name

Methods inherited from class org.antlr.codegen.Target

encodeIntAsCharEscape, genRecognizerFile, getMaxCharValue, getTarget64BitStringFromValue, getTargetStringLiteralFromString, getTargetStringLiteralFromString, isValidActionScope, performGrammarAnalysis, postProcessAction, useBaseTemplatesForSynPredFragments

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjCTarget

public ObjCTarget()

Method Detail

genRecognizerHeaderFile

protected void genRecognizerHeaderFile(Tool tool,
                           CodeGenerator generator,
                           Grammar grammar,
                           org.stringtemplate.v4.ST headerFileST,
                           String extName)
                                throws IOException

Overrides:

genRecognizerHeaderFile in class Target

Throws:

IOException

getTargetCharLiteralFromANTLRCharLiteral

public String getTargetCharLiteralFromANTLRCharLiteral(CodeGenerator generator,
                                              String literal)

Description copied from class: Target

Convert from an ANTLR char literal found in a grammar file to an equivalent char literal in the target language. For most languages, this means leaving 'x' as 'x'. Actually, we need to escape ' ' so that it doesn't get converted to \n by the compiler. Convert the literal to the char value and then to an appropriate target char literal. Expect single quotes around the incoming literal.

Overrides:

getTargetCharLiteralFromANTLRCharLiteral in class Target

getTargetStringLiteralFromANTLRStringLiteral

public String getTargetStringLiteralFromANTLRStringLiteral(CodeGenerator generator,
                                                  String literal)

Convert from an ANTLR string literal found in a grammar file to an equivalent string literal in the target language. For Java, this is the translation 'a\n"' → "a\n\"". Expect single quotes around the incoming literal. Just flip the quotes and replace double quotes with \"

Overrides:

getTargetStringLiteralFromANTLRStringLiteral in class Target

getTokenTypeAsTargetLabel

public String getTokenTypeAsTargetLabel(CodeGenerator generator,
                               int ttype)

If we have a label, prefix it with the recognizer's name

Overrides:

getTokenTypeAsTargetLabel in class Target

getTokenTextAndTypeAsTargetLabel

public String getTokenTextAndTypeAsTargetLabel(CodeGenerator generator,
                                      String text,
                                      int tokenType)

Target must be able to override the labels used for token types. Sometimes also depends on the token text.