Bug#241342: Acknowledgement (zed: C/C++ syntax highlighting catches too much)

[Tom Marshall <tommy@home.tig-grr.com>]

Original patch failed to catch underscores.  Here's a new one.

--- edvis.cc.orig       2000-04-05 02:36:20.000000000 -0700
+++ edvis.cc    2004-03-31 15:18:13.000000000 -0800
@@ -52,6 +52,8 @@
 
 /***************************************************************************/
 
+#define istokchar(c) (isalnum(c) || (c) == '_')
+
 int editor::coloracpp(unsigned short int *buf,char *str,
                       int vidx,int len,int ss)
 {
@@ -135,7 +137,7 @@
 
      while(*i!='\0')
      {
-      if (memcmp(p,i+1,(int)(*i-'0'))==0)
+      if (memcmp(p,i+1,(int)(*i-'0'))==0 && !istokchar(p[*i-'0']))
       { ava=(int)(*i-'0'); save1=ava; stato=12; break; }
       i+=(int)(*i-'0')+1;
      }