diff options
Diffstat (limited to 'contrib/groff/src/roff/troff/unicode.cpp')
-rw-r--r-- | contrib/groff/src/roff/troff/unicode.cpp | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/contrib/groff/src/roff/troff/unicode.cpp b/contrib/groff/src/roff/troff/unicode.cpp deleted file mode 100644 index 2117463..0000000 --- a/contrib/groff/src/roff/troff/unicode.cpp +++ /dev/null @@ -1,67 +0,0 @@ -// -*- C++ -*- -/* Copyright (C) 2002 - Free Software Foundation, Inc. - Written by Werner Lemberg <wl@gnu.org> - -This file is part of groff. - -groff 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. - -groff 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. - -You should have received a copy of the GNU General Public License along -with groff; see the file COPYING. If not, write to the Free Software -Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "lib.h" -#include "cset.h" -#include "stringclass.h" - -#include "unicode.h" - -const char *check_unicode_name(const char *u) -{ - if (*u != 'u') - return 0; - const char *p = ++u; - for (;;) { - int val = 0; - const char *start = p; - for (;;) { - // only uppercase hex digits allowed - if (!csxdigit(*p)) - return 0; - if (csdigit(*p)) - val = val*0x10 + (*p-'0'); - else if (csupper(*p)) - val = val*0x10 + (*p-'A'+10); - else - return 0; - // biggest Unicode value is U+10FFFF - if (val > 0x10FFFF) - return 0; - p++; - if (*p == '\0' || *p == '_') - break; - } - // surrogates not allowed - if ((val >= 0xD800 && val <= 0xDBFF) || (val >= 0xDC00 && val <= 0xDFFF)) - return 0; - if (val > 0xFFFF) { - if (*start == '0') // no leading zeros allowed if > 0xFFFF - return 0; - } - else if (p - start != 4) // otherwise, check for exactly 4 hex digits - return 0; - if (*p == '\0') - break; - p++; - } - return u; -} |