litesoft
@ 939
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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt package org.litesoft.core.util; import org.litesoft.charstreams.*; import org.litesoft.commonfoundation.typeutils.*; public class UtilsCommon { protected UtilsCommon() { } /** * @param pText !null */ public static void formatToJavaSourceString( StringBuilder pSB, String pText ) { LowLevelEncode( pSB, new CharSourceFromSequence( pText ), true ); } public static String encodeToConstrainedASCII( String pText ) { if ( Strings.isNullOrEmpty( pText ) ) { return pText; } return LowLevelEncode( new StringBuilder(), new CharSourceFromSequence( pText, 0 ), true ).toString(); } public static String decodeFromConstrainedASCII( String pText ) { if ( Strings.isNullOrEmpty( pText ) ) { return pText; } return LowLevelDecode( new StringBuilder(), new CharSourceFromSequence( pText, 0 ), false ).toString(); } private static StringBuilder LowLevelEncode( StringBuilder pSB, CharSource pSource, boolean pDoubleQuoteSpecial ) { for ( int c; -1 != (c = pSource.get()); ) { if ( pDoubleQuoteSpecial && (c == '"') ) { pSB.append( '\\' ); pSB.append( (char) c ); } else { switch ( c ) { case '\\': pSB.append( '\\' ); pSB.append( '\\' ); break; case '\n': pSB.append( '\\' ); pSB.append( 'n' ); break; case '\r': pSB.append( '\\' ); pSB.append( 'r' ); break; case '\t': pSB.append( '\\' ); pSB.append( 't' ); break; default: if ( (' ' <= c) && (c < 127) ) { pSB.append( (char) c ); break; } pSB.append( '\\' ); pSB.append( 'x' ); pSB.append( Hex.toChar( c >> 24 ) ); pSB.append( Hex.toChar( c >> 16 ) ); pSB.append( Hex.toChar( c >> 8 ) ); pSB.append( Hex.toChar( c ) ); break; } } } return pSB; } private static StringBuilder LowLevelDecode( StringBuilder pSB, CharSource pSource, boolean pDoubleQuoteSpecial ) { for ( int c; -1 != (c = pSource.get()); ) { if ( (c < ' ') || (127 <= c) ) { throw new IllegalArgumentException( "Decoding Error: Char[" + pSource.getLastOffset() + "] Not between ' ' & Ascii 126 (inclusive)" ); } if ( c != '\\' ) { pSB.append( (char) c ); continue; } if ( -1 == (c = pSource.get()) ) { throw new IllegalArgumentException( "Decoding Error: No Char after escape \\" ); } if ( pDoubleQuoteSpecial && (c == '"') ) { pSB.append( (char) c ); } else { switch ( c ) { case '\\': pSB.append( (char) c ); break; case 'n': pSB.append( '\n' ); break; case 'r': pSB.append( '\r' ); break; case 't': pSB.append( '\t' ); break; case 'x': int c1 = pSource.get(); int c2 = pSource.get(); int c3 = pSource.get(); int c4 = pSource.get(); if ( c4 == -1 ) { throw new IllegalArgumentException( "Decoding Error: Not enough Chars after \\x" ); } try { int zChar = (Hex.fromCharChecked( (char) c1 ) << 24) + // (Hex.fromCharChecked( (char) c2 ) << 16) + // (Hex.fromCharChecked( (char) c3 ) << 8) + // Hex.fromCharChecked( (char) c4 ); pSB.append( (char) zChar ); } catch ( IllegalArgumentException e ) { throw new IllegalArgumentException( "Decoding Error: After \\x expected 4 hex digits: " + e.getMessage() ); } break; default: throw new IllegalArgumentException( "Decoding Error: Invalid Char '" + c + "' after escape \\" ); } } } return pSB; } } |
Commits for litesoft/trunk/Java/core/Anywhere/src/org/litesoft/core/util/UtilsCommon.java
Revision | Author | Commited | Message |
---|---|---|---|
939 Diff | GeorgeS | Mon 02 Jun, 2014 21:30:31 +0000 | Extracting commonfoundation |
823 Diff | GeorgeS | Sun 19 Aug, 2012 16:10:13 +0000 | |
822 Diff | GeorgeS | Sun 19 Aug, 2012 01:03:51 +0000 | |
821 Diff | GeorgeS | Sun 19 Aug, 2012 00:08:41 +0000 | |
819 Diff | GeorgeS | Sat 18 Aug, 2012 18:09:40 +0000 | |
811 Diff | GeorgeS | Sat 18 Aug, 2012 13:45:18 +0000 | |
810 Diff | GeorgeS | Thu 16 Aug, 2012 04:16:07 +0000 | |
809 Diff | GeorgeS | Thu 16 Aug, 2012 04:10:46 +0000 | |
806 Diff | GeorgeS | Thu 16 Aug, 2012 03:48:22 +0000 | |
805 | GeorgeS | Wed 15 Aug, 2012 12:53:09 +0000 |