printing from zvt

[Bradley Bell <bradleyb u washington edu>]

I would like to get vt100 printing sequences enabled in zvt, this would
enable printing from gnome-terminal.  This feature is very important
for some users (e.g. using pine on a remote host...)

Getting it to recognize the escape sequences is trivial (see the attached
patch), but I was wondering if anybody who knows the guts better could
give me some pointers on how to redirect the output.

thanks,
Brad

--- vt.c.bak	Wed Oct 11 19:51:29 2000
+++ vt.c	Wed Oct 11 22:05:41 2000
@@ -1298,6 +1298,19 @@
   }
 }
 
+static void
+vt_print(struct vt_em *vt)
+{
+  pid_t pid;
+  switch (vt->arg.num.intargs[0]) {
+  case 4:
+    printf("vt_print: disabled\n");
+    break;
+  case 5:
+    printf("vt_print: enabled\n");
+  }
+}
+
 /* function keys - does nothing */
 static void
 vt_func(struct vt_em *vt)
@@ -1417,7 +1430,7 @@
   {0,VT_LIT}, {0,VT_LIT}, {vt_scroll_reverse,VT_EBL}, {0,VT_LIT},	/* \]^_ */
   {0,VT_LIT}, {0,VT_LIT}, {0,VT_LIT}, {vt_reset,VT_EXL|VT_EXB},	/* `abc */
   {vt_gotoabsy,VT_EBL|VT_ESC}, {0,VT_LIT}, {vt_goto,VT_EBL}, {0,VT_LIT},	/* defg */
-  {vt_modeh,VT_EBL}, {0,VT_LIT}, {0,VT_LIT}, {vt_modek,VT_EBL},	/* hijk */
+  {vt_modeh,VT_EBL}, {vt_print,VT_EBL}, {0,VT_LIT}, {vt_modek,VT_EBL},	/* hijk */
   {vt_model,VT_EBL}, {vt_mode,VT_EBL}, {vt_dsr,VT_EBL}, {0,VT_LIT},	/* lmno */
   {vt_reset,VT_EBL}, {0,VT_LIT}, {vt_scroll,VT_EBL}, {0,VT_LIT},	/* pqrs */
   {0,VT_LIT}, {0,VT_LIT}, {0,VT_LIT}, {0,VT_LIT},	/* tuvw */