1 files changed, 87 insertions, 0 deletions
diff --git a/contrib/gperf/src/readline.c b/contrib/gperf/src/readline.c
new file mode 100644
index 0000000..19ac5e5
--- /dev/null
+++ b/contrib/gperf/src/readline.c
@@ -0,0 +1,87 @@
+/* Correctly reads an arbitrarily size string.
+
+   Copyright (C) 1989 Free Software Foundation, Inc.
+   written by Douglas C. Schmidt (schmidt@ics.uci.edu)
+
+This file is part of GNU GPERF.
+
+GNU GPERF 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 1, or (at your option)
+any later version.
+
+GNU GPERF 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 GNU GPERF; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include <stdio.h>
+#include "readline.h"
+
+/* Size of each chunk. */
+#define CHUNK_SIZE BUFSIZ
+
+/* Recursively fills up the buffer. */
+
+static char *
+readln_aux (chunks) 
+     int chunks;
+{
+  char *buffered_malloc ();
+  char buf[CHUNK_SIZE];
+  register char *bufptr = buf;
+  register char *ptr;
+  int c;
+
+  while ((c = getchar ()) != EOF && c != '\n') /* fill the current buffer */
+    {
+      *bufptr++ = c;
+      if (bufptr - buf >= CHUNK_SIZE) /* prepend remainder to ptr buffer */
+        {
+          if (ptr = readln_aux (chunks + 1))
+
+            for (; bufptr != buf; *--ptr = *--bufptr);
+
+          return ptr;
+        }
+    }
+
+  if (c == EOF && bufptr == buf)
+    return NULL;
+
+  c = (chunks * CHUNK_SIZE + bufptr - buf) + 1;
+
+  if (ptr = buffered_malloc (c))
+    {
+
+      for (*(ptr += (c - 1)) = '\0'; bufptr != buf; *--ptr = *--bufptr)
+        ;
+
+      return ptr;
+    } 
+  else 
+    return NULL;
+}
+
+/* Returns the ``next'' line, ignoring comments beginning with '#'. */
+
+char *read_line () 
+{
+  int c;
+  if ((c = getchar ()) == '#')
+    {
+      while ((c = getchar ()) != '\n' && c != EOF)
+        ;
+
+      return c != EOF ? read_line () : NULL;
+    }
+  else
+    {
+      ungetc (c, stdin);
+      return readln_aux (0);
+    }
+}