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-rw-r--r--src/libs/libgroff/cset.cpp102
1 files changed, 102 insertions, 0 deletions
diff --git a/src/libs/libgroff/cset.cpp b/src/libs/libgroff/cset.cpp
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+++ b/src/libs/libgroff/cset.cpp
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+// -*- C++ -*-
+/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
+ Written by James Clark (jjc@jclark.com)
+
+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 <ctype.h>
+#include "cset.h"
+
+cset csalpha(CSET_BUILTIN);
+cset csupper(CSET_BUILTIN);
+cset cslower(CSET_BUILTIN);
+cset csdigit(CSET_BUILTIN);
+cset csxdigit(CSET_BUILTIN);
+cset csspace(CSET_BUILTIN);
+cset cspunct(CSET_BUILTIN);
+cset csalnum(CSET_BUILTIN);
+cset csprint(CSET_BUILTIN);
+cset csgraph(CSET_BUILTIN);
+cset cscntrl(CSET_BUILTIN);
+
+#ifdef isascii
+#define ISASCII(c) isascii(c)
+#else
+#define ISASCII(c) (1)
+#endif
+
+void cset::clear()
+{
+ char *p = v;
+ for (int i = 0; i <= UCHAR_MAX; i++)
+ p[i] = 0;
+}
+
+cset::cset()
+{
+ clear();
+}
+
+cset::cset(const char *s)
+{
+ clear();
+ while (*s)
+ v[(unsigned char)*s++] = 1;
+}
+
+cset::cset(const unsigned char *s)
+{
+ clear();
+ while (*s)
+ v[*s++] = 1;
+}
+
+cset::cset(cset_builtin)
+{
+ // these are initialised by cset_init::cset_init()
+}
+
+cset &cset::operator|=(const cset &cs)
+{
+ for (int i = 0; i <= UCHAR_MAX; i++)
+ if (cs.v[i])
+ v[i] = 1;
+ return *this;
+}
+
+
+int cset_init::initialised = 0;
+
+cset_init::cset_init()
+{
+ if (initialised)
+ return;
+ initialised = 1;
+ for (int i = 0; i <= UCHAR_MAX; i++) {
+ csalpha.v[i] = ISASCII(i) && isalpha(i);
+ csupper.v[i] = ISASCII(i) && isupper(i);
+ cslower.v[i] = ISASCII(i) && islower(i);
+ csdigit.v[i] = ISASCII(i) && isdigit(i);
+ csxdigit.v[i] = ISASCII(i) && isxdigit(i);
+ csspace.v[i] = ISASCII(i) && isspace(i);
+ cspunct.v[i] = ISASCII(i) && ispunct(i);
+ csalnum.v[i] = ISASCII(i) && isalnum(i);
+ csprint.v[i] = ISASCII(i) && isprint(i);
+ csgraph.v[i] = ISASCII(i) && isgraph(i);
+ cscntrl.v[i] = ISASCII(i) && iscntrl(i);
+ }
+}