From: MORIOKA Tomohiko <tomo.git@chise.org>
Date: Tue, 16 Apr 2013 01:09:15 +0000 (+0900)
Subject: Include <ctype.h>.
X-Git-Url: http://git.chise.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=79444dc94df321db7b8b90dbe517f7b2a5d0438e;p=chise%2Fconcord.git

Include <ctype.h>.
(cos_read_int): New function.
---

diff --git a/read.c b/read.c
index 2fd1566..f8d0eb2 100644
--- a/read.c
+++ b/read.c
@@ -17,8 +17,62 @@
    02111-1307 USA.  */
 
 #include <stdlib.h>
+#include <ctype.h>
 #include "cos-read.h"
 
+COS_object
+cos_read_int (unsigned char *str, size_t len, size_t start, size_t* endp)
+{
+  size_t i = start;
+  int c;
+  int negative_flag;
+  int dest;
+
+  if ( i < len )
+    {
+      switch ( str[i] )
+	{
+	case '+':
+	  negative_flag = 0;
+	  i++;
+	  break;
+	case '-':
+	  negative_flag = 1;
+	  i++;
+	  break;
+	default:
+	  negative_flag = 0;
+	}
+
+      if ( (i < len) && (c = str[i++])
+	   && ('0' <= c) && (c <= '9') )
+	{
+	  dest = c - '0';
+
+	  while ( i < len )
+	    {
+	      c = str[i];
+	      if ( ('0' <= c) && (c <= '9') )
+		{
+		  dest = dest * 10 + c - '0';
+		  i++;
+		}
+	      else if ( isspace (c) )
+		{
+		  *endp = i;
+		  return cos_make_int ( negative_flag ? - dest : dest );
+		}
+	      else
+		return NULL;
+	    }
+	  *endp = i;
+	  return cos_make_int ( negative_flag ? - dest : dest );
+	}
+    }
+  return NULL;
+}
+
+
 int
 cos_read_utf8 (unsigned char *str, size_t len, size_t start, size_t* endp)
 {
@@ -93,6 +147,7 @@ cos_read_char (unsigned char *str, size_t len, size_t start, size_t* endp)
   return -1;
 }
 
+
 COS_String
 cos_read_string (unsigned char *str, size_t len, size_t start, size_t* endp)
 {