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Merged in GetDefEncoding.m
New function GetAvailableEncodings. Updated the encoding arrays. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@7663 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Fred Kiefer
parent
4edb867287
commit
2fbd2e2547
1 changed files with 182 additions and 4 deletions
186
Source/Unicode.m
186
Source/Unicode.m
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@ -1,8 +1,13 @@
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/* Support functions for Unicode implementation
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/* Support functions for Unicode implementation
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Function to determine default c string encoding for
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GNUstep based on GNUSTEP_STRING_ENCODING environment variable.
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Copyright (C) 1997 Free Software Foundation, Inc.
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Written by: Stevo Crvenkovski < stevo@btinternet.com >
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Date: March 1997
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Merged with GetDefEncoding.m and iconv by: Fred Kiefer <fredkiefer@gmx.de>
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Date: September 2000
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This file is part of the GNUstep Base Library.
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@ -24,6 +29,8 @@
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#include <config.h>
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#include <Foundation/NSString.h>
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#include <base/Unicode.h>
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#include <stdio.h>
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#include <stdlib.h>
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struct _ucc_ {unichar from; char to;};
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@ -46,6 +53,172 @@ struct _ucc_ {unichar from; char to;};
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#define UNICODE_ENC "UNICODELITTLE"
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#endif
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#endif
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typedef unsigned char unc;
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static NSStringEncoding defEnc = GSUndefinedEncoding;
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// Uncomment when implemented
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static NSStringEncoding _availableEncodings[] = {
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NSASCIIStringEncoding,
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NSNEXTSTEPStringEncoding,
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// NSJapaneseEUCStringEncoding,
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// NSUTF8StringEncoding,
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NSISOLatin1StringEncoding,
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// NSSymbolStringEncoding,
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// NSNonLossyASCIIStringEncoding,
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// NSShiftJISStringEncoding,
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NSISOLatin2StringEncoding,
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NSUnicodeStringEncoding,
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// NSWindowsCP1251StringEncoding,
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// NSWindowsCP1252StringEncoding,
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// NSWindowsCP1253StringEncoding,
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// NSWindowsCP1254StringEncoding,
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// NSWindowsCP1250StringEncoding,
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// NSISO2022JPStringEncoding,
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// NSMacOSRomanStringEncoding,
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// NSProprietaryStringEncoding,
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// GNUstep additions
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NSCyrillicStringEncoding,
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// NSKOI8RStringEncoding,
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// NSISOLatin3StringEncoding,
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// NSISOLatin4StringEncoding,
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// NSArabicStringEncoding,
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// NSGreekStringEncoding,
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// NSHebrewStringEncoding,
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// NSGB2312StringEncoding,
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0
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};
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struct _strenc_ {NSStringEncoding enc; char *ename;};
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const struct _strenc_ str_encoding_table[]=
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{
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{NSASCIIStringEncoding,"NSASCIIStringEncoding"},
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{NSNEXTSTEPStringEncoding,"NSNEXTSTEPStringEncoding"},
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{NSJapaneseEUCStringEncoding, "NSJapaneseEUCStringEncoding"},
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{NSUTF8StringEncoding,"NSUTF8StringEncoding"},
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{NSISOLatin1StringEncoding,"NSISOLatin1StringEncoding"},
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{NSSymbolStringEncoding,"NSSymbolStringEncoding"},
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{NSNonLossyASCIIStringEncoding,"NSNonLossyASCIIStringEncoding"},
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{NSShiftJISStringEncoding,"NSShiftJISStringEncoding"},
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{NSISOLatin2StringEncoding,"NSISOLatin2StringEncoding"},
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{NSUnicodeStringEncoding, "NSUnicodeStringEncoding"},
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{NSWindowsCP1251StringEncoding,"NSWindowsCP1251StringEncoding"},
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{NSWindowsCP1252StringEncoding,"NSWindowsCP1252StringEncoding"},
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{NSWindowsCP1253StringEncoding,"NSWindowsCP1253StringEncoding"},
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{NSWindowsCP1254StringEncoding,"NSWindowsCP1254StringEncoding"},
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{NSWindowsCP1250StringEncoding,"NSWindowsCP1250StringEncoding"},
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{NSISO2022JPStringEncoding,"NSISO2022JPStringEncoding "},
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{NSMacOSRomanStringEncoding, "NSMacOSRomanStringEncoding"},
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{NSProprietaryStringEncoding, "NSProprietaryStringEncoding"},
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// GNUstep additions
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{NSCyrillicStringEncoding,"NSCyrillicStringEncoding"},
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{NSKOI8RStringEncoding, "NSKOI8RStringEncoding"},
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{NSISOLatin3StringEncoding, "NSISOLatin3StringEncoding"},
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{NSISOLatin4StringEncoding, "NSISOLatin4StringEncoding"},
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{NSArabicStringEncoding, "NSArabicStringEncoding"},
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{NSGreekStringEncoding, "NSGreekStringEncoding"},
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{NSHebrewStringEncoding, "NSHebrewStringEncoding"},
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{NSGB2312StringEncoding, "NSGB2312StringEncoding"},
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{0, "Unknown encoding"}
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};
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NSStringEncoding *GetAvailableEncodings()
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{
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// FIXME: This should check which iconv definitions are available and
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// add them to the availble encodings
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return _availableEncodings;
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}
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NSStringEncoding GetDefEncoding()
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{
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char *encoding;
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unsigned int count;
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NSStringEncoding ret,tmp;
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NSStringEncoding *availableEncodings;
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availableEncodings = GetAvailableEncodings();
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encoding = getenv("GNUSTEP_STRING_ENCODING");
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if (encoding)
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{
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count = 0;
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while (str_encoding_table[count].enc &&
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strcmp(str_encoding_table[count].ename,encoding))
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{
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count++;
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}
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if (str_encoding_table[count].enc)
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{
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ret = str_encoding_table[count].enc;
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if ((ret == NSUnicodeStringEncoding) ||
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(ret == NSSymbolStringEncoding))
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{
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fprintf(stderr, "WARNING: %s - encoding not supported as default c string encoding.\n", encoding);
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fprintf(stderr, "NSASCIIStringEncoding set as default.\n");
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ret = NSASCIIStringEncoding;
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}
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else /*encoding should be supported but is it implemented?*/
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{
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count = 0;
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tmp = 0;
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while ( !(availableEncodings[count] == 0) )
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{
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if ( !(ret == availableEncodings[count]) )
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tmp = 0;
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else
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{
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tmp = ret;
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break;
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}
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count++;
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};
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if (!tmp)
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{
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fprintf(stderr, "WARNING: %s - encoding not yet implemented.\n", encoding);
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fprintf(stderr, "NSASCIIStringEncoding set as default.\n");
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ret = NSASCIIStringEncoding;
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};
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};
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}
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else /* encoding not found */
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{
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fprintf(stderr, "WARNING: %s - encoding not supported.\n", encoding);
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fprintf(stderr, "NSASCIIStringEncoding set as default.\n");
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ret = NSASCIIStringEncoding;
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}
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}
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else /* environment var not found */
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{
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/* This shouldn't be required. It really should be in UserDefaults - asf */
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//fprintf(stderr,"WARNING: GNUSTEP_STRING_ENCODING environment variable not found\n");
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//fprintf(stderr, "NSASCIIStringEncoding set as default.\n");
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ret = NSASCIIStringEncoding;
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}
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// Cache the encoding
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defEnc = ret;
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return ret;
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};
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NSString*
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GetEncodingName(NSStringEncoding encoding)
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{
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unsigned int count=0;
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while (str_encoding_table[count].enc &&
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!(str_encoding_table[count].enc == encoding))
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{
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count++;
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}
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return [NSString stringWithCString: str_encoding_table[count].ename];
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};
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#ifdef HAVE_ICONV
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static char *
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iconv_stringforencoding(NSStringEncoding enc)
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@ -156,9 +329,6 @@ iconv_ustrtostr(char *s2, int size2, unichar *u1, int size1, NSStringEncoding en
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#endif
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typedef unsigned char unc;
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static NSStringEncoding defEnc = GSUndefinedEncoding;
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unichar
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encode_chartouni(char c, NSStringEncoding enc)
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{
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@ -169,6 +339,7 @@ encode_chartouni(char c, NSStringEncoding enc)
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case NSNonLossyASCIIStringEncoding:
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case NSASCIIStringEncoding:
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case NSISOLatin1StringEncoding:
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case NSUnicodeStringEncoding:
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return (unichar)((unc)c);
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case NSNEXTSTEPStringEncoding:
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@ -234,6 +405,7 @@ encode_unitochar(unichar u, NSStringEncoding enc)
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return '*';
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case NSISOLatin1StringEncoding:
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case NSUnicodeStringEncoding:
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if (u < 256)
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return (char)u;
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else
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@ -324,6 +496,9 @@ encode_unitochar_strict(unichar u, NSStringEncoding enc)
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else
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return 0;
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case NSUnicodeStringEncoding:
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return u;
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case NSNEXTSTEPStringEncoding:
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if (u < (unichar)Next_conv_base)
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return (char)u;
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@ -441,6 +616,7 @@ encode_strtoustr(unichar *u1, const char *s1, int size, NSStringEncoding enc)
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case NSNonLossyASCIIStringEncoding:
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case NSASCIIStringEncoding:
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case NSISOLatin1StringEncoding:
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case NSUnicodeStringEncoding:
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for (count = 0; (count < size) && (s1[count] != 0); count++)
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{
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u1[count] = (unichar)((unc)s1[count]);
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@ -544,6 +720,7 @@ encode_ustrtostr(char *s2, unichar *u1, int size, NSStringEncoding enc)
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return count;
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case NSISOLatin1StringEncoding:
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case NSUnicodeStringEncoding:
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for (count = 0; (count < size) && (u1[count] != (unichar)0); count++)
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{
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u = u1[count];
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@ -669,6 +846,7 @@ encode_ustrtostr_strict(char *s2, unichar *u1, int size, NSStringEncoding enc)
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return count;
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case NSISOLatin1StringEncoding:
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case NSUnicodeStringEncoding:
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for (count = 0; count < size; count++)
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{
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u = u1[count];
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