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CppCharFormatter.javaAPI DocGlassfish v2 API2734Wed Aug 30 15:34:06 BST 2006persistence.antlr

CppCharFormatter

public class CppCharFormatter extends Object implements CharFormatter

Fields Summary
Constructors Summary
Methods Summary
public java.lang.StringescapeChar(int c, boolean forCharLiteral)
Given a character value, return a string representing the character that can be embedded inside a string literal or character literal This works for Java/C/C++ code-generation and languages with compatible special-character-escapment. Used internally in CppCharFormatter and in CppCodeGenerator.converJavaToCppString.

param
c The character of interest.
param
forCharLiteral true to escape for char literal, false for string literal

		// System.out.println("CppCharFormatter.escapeChar("+c+")");
		switch (c) {
		case '\n" : return "\\n";
		case '\t" : return "\\t";
		case '\r" : return "\\r";
		case '\\" : return "\\\\";
		case '\'" : return forCharLiteral ? "\\'" : "'";
		case '"" :  return forCharLiteral ? "\"" : "\\\"";
		default :
			if ( c < ' " || c > 126 )
			{
				if (c > 255)
				{
					String s = Integer.toString(c,16);
					// put leading zeroes in front of the thing..
					while( s.length() < 4 )
						s = '0" + s;
					return "\\u" + s;
				}
				else {
					return "\\" + Integer.toString(c,8);
				}
			}
			else {
				return String.valueOf((char)c);
			}
		}
public java.lang.StringescapeString(java.lang.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.

param
s The String to be changed into a literal

		String retval = new String();
		for (int i = 0; i < s.length(); i++)
			retval += escapeChar(s.charAt(i), false);

		return retval;
public java.lang.StringliteralChar(int c)
Given a character value, return a string representing the character literal that can be recognized by the target language compiler. This works for languages that use single-quotes for character literals.

param
c The character of interest.

		String ret = "0x"+Integer.toString(c,16);
		if( c >= 0 && c <= 126 )
			ret += " /* '"+escapeChar(c,true)+"' */ ";
		return ret;
public java.lang.StringliteralString(java.lang.String s)
Converts a String into a string literal This works for languages that use double-quotes for string literals. Code-generators for languages should override this method. Used for the generation of the tables with token names

param
s The String to be changed into a literal

		return "\"" + escapeString(s) + "\"";