/contrib/cvs/lib/fncase.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 155 lines · 115 code · 11 blank · 29 comment · 15 complexity · 414586770334095e9f67b3e8d8ffca87 MD5 · raw file
- /* fncase.c -- CVS support for case insensitive file systems.
- Jim Blandy <jimb@cyclic.com>
- This file is part of GNU CVS.
- GNU CVS is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details. */
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
- #include "system.h"
- /* The equivalence class mapping for filenames.
- Windows NT filenames are case-insensitive, but case-preserving.
- Both / and \ are path element separators.
- Thus, this table maps both upper and lower case to lower case, and
- both / and \ to /. */
- #if 0
- main ()
- {
- int c;
- for (c = 0; c < 256; c++)
- {
- int t;
- if (c == '\\')
- t = '/';
- else
- t = tolower (c);
-
- if ((c & 0x7) == 0x0)
- printf (" ");
- printf ("0x%02x,", t);
- if ((c & 0x7) == 0x7)
- putchar ('\n');
- else if ((c & 0x7) == 0x3)
- putchar (' ');
- }
- }
- #endif
- /* Under Windows NT, filenames are case-insensitive but case-preserving,
- and both \ and / are path element separators. */
- unsigned char
- WNT_filename_classes[] =
- {
- 0x00,0x01,0x02,0x03, 0x04,0x05,0x06,0x07,
- 0x08,0x09,0x0a,0x0b, 0x0c,0x0d,0x0e,0x0f,
- 0x10,0x11,0x12,0x13, 0x14,0x15,0x16,0x17,
- 0x18,0x19,0x1a,0x1b, 0x1c,0x1d,0x1e,0x1f,
- 0x20,0x21,0x22,0x23, 0x24,0x25,0x26,0x27,
- 0x28,0x29,0x2a,0x2b, 0x2c,0x2d,0x2e,0x2f,
- 0x30,0x31,0x32,0x33, 0x34,0x35,0x36,0x37,
- 0x38,0x39,0x3a,0x3b, 0x3c,0x3d,0x3e,0x3f,
- 0x40,0x61,0x62,0x63, 0x64,0x65,0x66,0x67,
- 0x68,0x69,0x6a,0x6b, 0x6c,0x6d,0x6e,0x6f,
- 0x70,0x71,0x72,0x73, 0x74,0x75,0x76,0x77,
- 0x78,0x79,0x7a,0x5b, 0x2f,0x5d,0x5e,0x5f,
- 0x60,0x61,0x62,0x63, 0x64,0x65,0x66,0x67,
- 0x68,0x69,0x6a,0x6b, 0x6c,0x6d,0x6e,0x6f,
- 0x70,0x71,0x72,0x73, 0x74,0x75,0x76,0x77,
- 0x78,0x79,0x7a,0x7b, 0x7c,0x7d,0x7e,0x7f,
- 0x80,0x81,0x82,0x83, 0x84,0x85,0x86,0x87,
- 0x88,0x89,0x8a,0x8b, 0x8c,0x8d,0x8e,0x8f,
- 0x90,0x91,0x92,0x93, 0x94,0x95,0x96,0x97,
- 0x98,0x99,0x9a,0x9b, 0x9c,0x9d,0x9e,0x9f,
- 0xa0,0xa1,0xa2,0xa3, 0xa4,0xa5,0xa6,0xa7,
- 0xa8,0xa9,0xaa,0xab, 0xac,0xad,0xae,0xaf,
- 0xb0,0xb1,0xb2,0xb3, 0xb4,0xb5,0xb6,0xb7,
- 0xb8,0xb9,0xba,0xbb, 0xbc,0xbd,0xbe,0xbf,
- 0xc0,0xc1,0xc2,0xc3, 0xc4,0xc5,0xc6,0xc7,
- 0xc8,0xc9,0xca,0xcb, 0xcc,0xcd,0xce,0xcf,
- 0xd0,0xd1,0xd2,0xd3, 0xd4,0xd5,0xd6,0xd7,
- 0xd8,0xd9,0xda,0xdb, 0xdc,0xdd,0xde,0xdf,
- 0xe0,0xe1,0xe2,0xe3, 0xe4,0xe5,0xe6,0xe7,
- 0xe8,0xe9,0xea,0xeb, 0xec,0xed,0xee,0xef,
- 0xf0,0xf1,0xf2,0xf3, 0xf4,0xf5,0xf6,0xf7,
- 0xf8,0xf9,0xfa,0xfb, 0xfc,0xfd,0xfe,0xff,
- };
- /* Same as WNT_filename_classes, but do not fold `\' into `/'. */
- unsigned char
- OSX_filename_classes[] =
- {
- 0x00,0x01,0x02,0x03, 0x04,0x05,0x06,0x07,
- 0x08,0x09,0x0a,0x0b, 0x0c,0x0d,0x0e,0x0f,
- 0x10,0x11,0x12,0x13, 0x14,0x15,0x16,0x17,
- 0x18,0x19,0x1a,0x1b, 0x1c,0x1d,0x1e,0x1f,
- 0x20,0x21,0x22,0x23, 0x24,0x25,0x26,0x27,
- 0x28,0x29,0x2a,0x2b, 0x2c,0x2d,0x2e,0x2f,
- 0x30,0x31,0x32,0x33, 0x34,0x35,0x36,0x37,
- 0x38,0x39,0x3a,0x3b, 0x3c,0x3d,0x3e,0x3f,
- 0x40,0x61,0x62,0x63, 0x64,0x65,0x66,0x67,
- 0x68,0x69,0x6a,0x6b, 0x6c,0x6d,0x6e,0x6f,
- 0x70,0x71,0x72,0x73, 0x74,0x75,0x76,0x77,
- 0x78,0x79,0x7a,0x5b, 0x5c,0x5d,0x5e,0x5f,
- 0x60,0x61,0x62,0x63, 0x64,0x65,0x66,0x67,
- 0x68,0x69,0x6a,0x6b, 0x6c,0x6d,0x6e,0x6f,
- 0x70,0x71,0x72,0x73, 0x74,0x75,0x76,0x77,
- 0x78,0x79,0x7a,0x7b, 0x7c,0x7d,0x7e,0x7f,
- 0x80,0x81,0x82,0x83, 0x84,0x85,0x86,0x87,
- 0x88,0x89,0x8a,0x8b, 0x8c,0x8d,0x8e,0x8f,
- 0x90,0x91,0x92,0x93, 0x94,0x95,0x96,0x97,
- 0x98,0x99,0x9a,0x9b, 0x9c,0x9d,0x9e,0x9f,
- 0xa0,0xa1,0xa2,0xa3, 0xa4,0xa5,0xa6,0xa7,
- 0xa8,0xa9,0xaa,0xab, 0xac,0xad,0xae,0xaf,
- 0xb0,0xb1,0xb2,0xb3, 0xb4,0xb5,0xb6,0xb7,
- 0xb8,0xb9,0xba,0xbb, 0xbc,0xbd,0xbe,0xbf,
- 0xc0,0xc1,0xc2,0xc3, 0xc4,0xc5,0xc6,0xc7,
- 0xc8,0xc9,0xca,0xcb, 0xcc,0xcd,0xce,0xcf,
- 0xd0,0xd1,0xd2,0xd3, 0xd4,0xd5,0xd6,0xd7,
- 0xd8,0xd9,0xda,0xdb, 0xdc,0xdd,0xde,0xdf,
- 0xe0,0xe1,0xe2,0xe3, 0xe4,0xe5,0xe6,0xe7,
- 0xe8,0xe9,0xea,0xeb, 0xec,0xed,0xee,0xef,
- 0xf0,0xf1,0xf2,0xf3, 0xf4,0xf5,0xf6,0xf7,
- 0xf8,0xf9,0xfa,0xfb, 0xfc,0xfd,0xfe,0xff,
- };
- /* Like strcmp, but with the appropriate tweaks for file names.
- Under Windows NT, filenames are case-insensitive but case-preserving,
- and both \ and / are path element separators. Under Mac OS X, filenames
- are case-insensitive but case-preserving. */
- int
- fncmp (const char *n1, const char *n2)
- {
- while (*n1 && *n2
- && (FOLD_FN_CHAR(*n1)
- == FOLD_FN_CHAR(*n2)))
- n1++, n2++;
- return (FOLD_FN_CHAR(*n1) - FOLD_FN_CHAR(*n2));
- }
- /* Fold characters in FILENAME to their canonical forms.
- If FOLD_FN_CHAR is not #defined, the system provides a default
- definition for this. */
- void
- fnfold (char *filename)
- {
- while (*filename)
- {
- *filename = FOLD_FN_CHAR (*filename);
- filename++;
- }
- }