/* Copyright (C) 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.org>, 2000. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <assert.h> #include <langinfo.h> #include <string.h> /* Look up the value of the next multibyte character and return its numerical value if it is one of the digits known in the locale. If *DECIDED is -1 this means it is not yet decided which form it is and we have to search through all available digits. Otherwise we know which script the digits are from. */ static inline int indigit_value (const char **s, size_t *len, int *decided) { int from_level; int to_level; const char *mbdigits[10]; int i; int n; if (*decided != -1) from_level = to_level = *decided; else { from_level = 0; to_level = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_INDIGITS_MB_LEN) - 1; assert (from_level <= to_level); } /* In this round we get the pointer to the digit strings and also perform the first round of comparisons. */ for (n = 0; n < 10; ++n) { size_t dlen; /* Get the string for the digits with value N. */ mbdigits[n] = _NL_CURRENT (LC_CTYPE, _NL_CTYPE_INDIGITS0_MB + n); dlen = strlen (mbdigits[n]); if (from_level == 0 && dlen <= *len && memcmp (*s, mbdigits[n], dlen) == 0) { /* Found it. */ *s += dlen; *len -= dlen; if (*decided == -1) *decided = 0; return n; } /* Advance the pointer to the next string. */ mbdigits[n] += dlen + 1; } /* Now perform the remaining tests. */ for (i = 1; i <= to_level; ++i) { /* Search all ten digits of this level. */ for (n = 0; n < 10; ++n) { size_t dlen = strlen (mbdigits[n]); if (i >= from_level && dlen <= *len && memcmp (*s, mbdigits[n], dlen) == 0) { /* Found it. */ *s += dlen; *len -= dlen; if (*decided == -1) *decided = from_level; return n; } /* Advance the pointer to the next string. */ mbdigits[n] += dlen + 1; } } /* If we reach this point no matching digit was found. */ return -1; }

Generated by Doxygen 1.6.0 Back to index