* lib/strspn.c: New.

2 files changed, 66 insertions, 5 deletions

diff --git a/lib/Makefile.in b/lib/Makefile.in
index 41418dad..44d90518 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -129,7 +129,7 @@ COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CF
 CCLD = $(CC)
 LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@
 DIST_COMMON =  Makefile.am Makefile.in alloca.c ansi2knr.1 ansi2knr.c \
-memchr.c stpcpy.c strndup.c strnlen.c
+memchr.c stpcpy.c strndup.c strnlen.c strspn.c
 
 
 DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST)
@@ -138,8 +138,8 @@ TAR = tar
 GZIP_ENV = --best
 DEP_FILES =  .deps/alloca.P .deps/error.P .deps/getopt.P .deps/getopt1.P \
 .deps/memchr.P .deps/obstack.P .deps/quote.P .deps/quotearg.P \
-.deps/stpcpy.P .deps/strndup.P .deps/strnlen.P .deps/xmalloc.P \
-.deps/xstrdup.P
+.deps/stpcpy.P .deps/strndup.P .deps/strnlen.P .deps/strspn.P \
+.deps/xmalloc.P .deps/xstrdup.P
 SOURCES = $(libbison_a_SOURCES)
 OBJECTS = $(libbison_a_OBJECTS)
 
@@ -227,13 +227,15 @@ strndup_.c: strndup.c $(ANSI2KNR)
 	$(CPP) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/strndup.c; then echo $(srcdir)/strndup.c; else echo strndup.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > strndup_.c
 strnlen_.c: strnlen.c $(ANSI2KNR)
 	$(CPP) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/strnlen.c; then echo $(srcdir)/strnlen.c; else echo strnlen.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > strnlen_.c
+strspn_.c: strspn.c $(ANSI2KNR)
+	$(CPP) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/strspn.c; then echo $(srcdir)/strspn.c; else echo strspn.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > strspn_.c
 xmalloc_.c: xmalloc.c $(ANSI2KNR)
 	$(CPP) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/xmalloc.c; then echo $(srcdir)/xmalloc.c; else echo xmalloc.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > xmalloc_.c
 xstrdup_.c: xstrdup.c $(ANSI2KNR)
 	$(CPP) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/xstrdup.c; then echo $(srcdir)/xstrdup.c; else echo xstrdup.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > xstrdup_.c
 alloca_.o error_.o getopt_.o getopt1_.o memchr_.o obstack_.o quote_.o \
-quotearg_.o stpcpy_.o strndup_.o strnlen_.o xmalloc_.o xstrdup_.o : \
-$(ANSI2KNR)
+quotearg_.o stpcpy_.o strndup_.o strnlen_.o strspn_.o xmalloc_.o \
+xstrdup_.o : $(ANSI2KNR)
 
 tags: TAGS
 
diff --git a/lib/strspn.c b/lib/strspn.c
new file mode 100644
index 00000000..399d5402
--- /dev/null
+++ b/lib/strspn.c
@@ -0,0 +1,59 @@
+/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
+
+   NOTE: The canonical source of this file is maintained with the GNU
+   C Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License
+   as published by the Free Software Foundation; either version 2 of
+   the License, 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this program; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place -
+   Suite 330, Boston, MA 02111-1307, USA.  */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if defined _LIBC || HAVE_STRING_H
+# include <string.h>
+#else
+# include <strings.h>
+# ifndef strchr
+#  define strchr index
+# endif
+#endif
+
+#undef strspn
+
+/* Return the length of the maximum initial segment
+   of S which contains only characters in ACCEPT.  */
+size_t
+strspn (s, accept)
+     const char *s;
+     const char *accept;
+{
+  const char *p;
+  const char *a;
+  size_t count = 0;
+
+  for (p = s; *p != '\0'; ++p)
+    {
+      for (a = accept; *a != '\0'; ++a)
+	if (*p == *a)
+	  break;
+      if (*a == '\0')
+	return count;
+      else
+	++count;
+    }
+
+  return count;
+}