diff options
Diffstat (limited to 'lib/fncase.c')
| -rw-r--r-- | lib/fncase.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/lib/fncase.c b/lib/fncase.c new file mode 100644 index 0000000..2842428 --- /dev/null +++ b/lib/fncase.c @@ -0,0 +1,155 @@ +/* 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++; + } +} |