bring in strsep() implementation

4 files changed, 86 insertions, 1 deletions

diff --git a/src/Hill.cxx b/src/Hill.cxx
index d57c576..2f4a6e7 100644
--- a/src/Hill.cxx
+++ b/src/Hill.cxx
@@ -9,6 +9,7 @@
 #include <string.h>
 #include <math.h>
 
+#include "strsep.h"
 #include "Hill.H"
 
 static double pi_d, deg2rad;
diff --git a/src/Makefile.am b/src/Makefile.am
index acf66f5..5686c2b 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -3,6 +3,7 @@ bin_PROGRAMS = gipfel
 gipfel_SOURCES = \
 	gipfel.cxx \
 	util.c \
+	strsep.c \
 	GipfelWidget.cxx \
 	Panorama.cxx \
 	ProjectionLSQ.cxx \
@@ -40,4 +41,5 @@ noinst_HEADERS = \
 	PreviewOutputImage.H \
 	ImageMetaData.H \
 	ScreenDump.H \
-	util.h
+	util.h \
+	strsep.h
diff --git a/src/strsep.c b/src/strsep.c
new file mode 100644
index 0000000..c8e4be0
--- /dev/null
+++ b/src/strsep.c
@@ -0,0 +1,70 @@
+/* Copyright (C) 1992, 93, 96, 97, 98, 99, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 "../config.h"
+
+#ifndef HAVE_STRSEP
+
+#include "string.h"
+
+char *
+strsep (char **stringp, const char *delim)
+{
+  char *begin, *end;
+
+  begin = *stringp;
+  if (begin == NULL)
+    return NULL;
+
+  /* A frequent case is when the delimiter string contains only one
+     character.  Here we don't need to call the expensive `strpbrk'
+     function and instead work using `strchr'.  */
+  if (delim[0] == '\0' || delim[1] == '\0')
+    {
+      char ch = delim[0];
+
+      if (ch == '\0')
+        end = NULL;
+      else
+        {
+          if (*begin == ch)
+            end = begin;
+          else if (*begin == '\0')
+            end = NULL;
+          else
+            end = strchr (begin + 1, ch);
+        }
+    }
+  else
+    /* Find the end of the token.  */
+    end = strpbrk (begin, delim);
+
+  if (end)
+    {
+      /* Terminate the token and set *STRINGP past NUL character.  */
+      *end++ = '\0';
+      *stringp = end;
+    }
+  else
+    /* No more delimiters; this is the last token.  */
+    *stringp = NULL;
+
+  return begin;
+}
+
+#endif
diff --git a/src/strsep.h b/src/strsep.h
new file mode 100644
index 0000000..28295ba
--- /dev/null
+++ b/src/strsep.h
@@ -0,0 +1,12 @@
+/* 
+ * Copyright 2008 Johannes Hofmann <Johannes.Hofmann@gmx.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ */
+
+#include "../config.h"
+
+#ifndef HAVE_STRSEP
+char * strsep (char **stringp, const char *delim);
+#endif