org.antlr.codegen

Class CPPTarget

java.lang.Object

org.antlr.codegen.Target

org.antlr.codegen.CPPTarget

public class CPPTarget
extends Target

Field Summary

Fields inherited from class org.antlr.codegen.Target

targetCharValueEscape

Constructor Summary

Constructors

Constructor and Description
CPPTarget()

Method Summary

Methods

Modifier and Type	Method and Description
String	escapeChar(int c)
String	escapeString(String s) Converts a String into a representation that can be use as a literal when surrounded by double-quotes.
protected void	genRecognizerHeaderFile(Tool tool, CodeGenerator generator, Grammar grammar, org.antlr.stringtemplate.StringTemplate headerFileST, String extName)
int	getMaxCharValue(CodeGenerator codegen) Character constants get truncated to this value.
String	getTargetCharLiteralFromANTLRCharLiteral(CodeGenerator codegen, 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 codegen, String literal) Convert from an ANTLR string literal found in a grammar file to an equivalent string literal in the target language.

Methods inherited from class org.antlr.codegen.Target

encodeIntAsCharEscape, genRecognizerFile, getTarget64BitStringFromValue, getTargetStringLiteralFromString, getTargetStringLiteralFromString, getTokenTypeAsTargetLabel, isValidActionScope, performGrammarAnalysis, postProcessAction

Methods inherited from class java.lang.Object

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

Constructor Detail

CPPTarget

public CPPTarget()

Method Detail

escapeChar

public String escapeChar(int c)

escapeString

public String escapeString(String s)

Converts a String into a representation that can be use as a literal when surrounded by double-quotes. Used for escaping semantic predicate strings for exceptions.

Parameters:

s - The String to be changed into a literal

genRecognizerHeaderFile

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

Overrides:

genRecognizerHeaderFile in class Target

Throws:

IOException

getTargetCharLiteralFromANTLRCharLiteral

public String getTargetCharLiteralFromANTLRCharLiteral(CodeGenerator codegen,
                                              String literal)

Convert from an ANTLR char literal found in a grammar file to an equivalent char literal in the target language. For Java, this is the identify translation; i.e., '\n' -> '\n'. Most languages will be able to use this 1-to-1 mapping. Expect single quotes around the incoming literal. Depending on the charvocabulary the charliteral should be prefixed with a 'L'

Overrides:

getTargetCharLiteralFromANTLRCharLiteral in class Target

getTargetStringLiteralFromANTLRStringLiteral

public String getTargetStringLiteralFromANTLRStringLiteral(CodeGenerator codegen,
                                                  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 identify translation; i.e., "\"\n" -> "\"\n". Most languages will be able to use this 1-to-1 mapping. Expect double quotes around the incoming literal. Depending on the charvocabulary the string should be prefixed with a 'L'

Overrides:

getTargetStringLiteralFromANTLRStringLiteral in class Target

getMaxCharValue

public int getMaxCharValue(CodeGenerator codegen)

Character constants get truncated to this value. TODO: This should be derived from the charVocabulary. Depending on it being 255 or 0xFFFF the templates should generate normal character constants or multibyte ones.

Overrides:

getMaxCharValue in class Target