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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [posix/] [collate.c] - Rev 551
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/*- * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua> * at Electronni Visti IA, Kiev, Ukraine. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/cdefs.h> #include "namespace.h" #include <rune.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <unistd.h> #include <sysexits.h> #include "un-namespace.h" #include "collate.h" extern char *_PathLocale; int __collate_load_error = 1; int __collate_substitute_nontrivial; char __collate_version[STR_LEN]; u_char __collate_substitute_table[UCHAR_MAX + 1][STR_LEN]; struct __collate_st_char_pri __collate_char_pri_table[UCHAR_MAX + 1]; struct __collate_st_chain_pri __collate_chain_pri_table[TABLE_SIZE]; #define FREAD(a, b, c, d) \ do { \ if (fread(a, b, c, d) != c) { \ fclose(d); \ return -1; \ } \ } while(0) void __collate_err(int ex, const char *f); int __collate_load_tables(encoding) char *encoding; { char buf[PATH_MAX]; FILE *fp; int i, save_load_error; save_load_error = __collate_load_error; __collate_load_error = 1; if (!encoding) { __collate_load_error = save_load_error; return -1; } if (!strcmp(encoding, "C") || !strcmp(encoding, "POSIX")) return 0; if (!_PathLocale) { __collate_load_error = save_load_error; return -1; } /* Range checking not needed, encoding has fixed size */ (void) strcpy(buf, _PathLocale); (void) strcat(buf, "/"); (void) strcat(buf, encoding); (void) strcat(buf, "/LC_COLLATE"); if ((fp = fopen(buf, "r")) == NULL) { __collate_load_error = save_load_error; return -1; } FREAD(__collate_version, sizeof(__collate_version), 1, fp); if (strcmp(__collate_version, COLLATE_VERSION) != 0) { fclose(fp); return -1; } FREAD(__collate_substitute_table, sizeof(__collate_substitute_table), 1, fp); FREAD(__collate_char_pri_table, sizeof(__collate_char_pri_table), 1, fp); FREAD(__collate_chain_pri_table, sizeof(__collate_chain_pri_table), 1, fp); fclose(fp); __collate_load_error = 0; __collate_substitute_nontrivial = 0; for (i = 0; i < UCHAR_MAX + 1; i++) { if (__collate_substitute_table[i][0] != i || __collate_substitute_table[i][1] != 0) { __collate_substitute_nontrivial = 1; break; } } return 0; } u_char * __collate_substitute(s) const u_char *s; { int dest_len, len, nlen; int delta = strlen(s); u_char *dest_str = NULL; if(s == NULL || *s == '\0') return __collate_strdup(""); delta += delta / 8; dest_str = malloc(dest_len = delta); if(dest_str == NULL) __collate_err(EX_OSERR, __FUNCTION__); len = 0; while(*s) { nlen = len + strlen(__collate_substitute_table[*s]); if (dest_len <= nlen) { dest_str = reallocf(dest_str, dest_len = nlen + delta); if(dest_str == NULL) __collate_err(EX_OSERR, __FUNCTION__); } strcpy(dest_str + len, __collate_substitute_table[*s++]); len = nlen; } return dest_str; } void __collate_lookup(t, len, prim, sec) const u_char *t; int *len, *prim, *sec; { struct __collate_st_chain_pri *p2; *len = 1; *prim = *sec = 0; for(p2 = __collate_chain_pri_table; p2->str[0]; p2++) { if(strncmp(t, p2->str, strlen(p2->str)) == 0) { *len = strlen(p2->str); *prim = p2->prim; *sec = p2->sec; return; } } *prim = __collate_char_pri_table[*t].prim; *sec = __collate_char_pri_table[*t].sec; } u_char * __collate_strdup(s) u_char *s; { u_char *t = strdup(s); if (t == NULL) __collate_err(EX_OSERR, __FUNCTION__); return t; } void __collate_err(int ex, const char *f) { const char *s; int serrno = errno; /* Be careful to change write counts if you change the strings */ write(STDERR_FILENO, "collate_error: ", 15); write(STDERR_FILENO, f, strlen(f)); write(STDERR_FILENO, ": ", 2); s = strerror(serrno); write(STDERR_FILENO, s, strlen(s)); write(STDERR_FILENO, "\n", 1); exit(ex); } #ifdef COLLATE_DEBUG void __collate_print_tables() { int i; struct __collate_st_chain_pri *p2; printf("Substitute table:\n"); for (i = 0; i < UCHAR_MAX + 1; i++) if (i != *__collate_substitute_table[i]) printf("\t'%c' --> \"%s\"\n", i, __collate_substitute_table[i]); printf("Chain priority table:\n"); for (p2 = __collate_chain_pri_table; p2->str[0]; p2++) printf("\t\"%s\" : %d %d\n\n", p2->str, p2->prim, p2->sec); printf("Char priority table:\n"); for (i = 0; i < UCHAR_MAX + 1; i++) printf("\t'%c' : %d %d\n", i, __collate_char_pri_table[i].prim, __collate_char_pri_table[i].sec); } #endif
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