[patch] width parameter in mailcap

[Hui Zhou <zhouhui@xxxxxxxxxxx>]

Hi, All,

I am new here.

I made a small patch to rfc1524.c so the mailcap viewer which accept a 
width parameter can expand %w into the term size. This can be used in 
example:
   text/html; lynx -width=%w -dump %s; copiousoutput;
which utilizes the large term window.

I realize this is out of the specification of RFC1524, what is the 
general approach on these type of enhancements?

Not tried yet, but I am thinking of further enhancements so %w-10 can 
expand into COLS-10 (the term size minus 10) so the pager can utilize 
the large term size but still leave a margin of 10.

BTW, What is the status of mutt's support of RFC 2646 -- 
format=flowed, other than the text_flowed option? It seems there are 
some code in the src dealing with flowed message, but I can't find it 
in any documentation. I am currently using a perl script as a mailcap 
viewer which can re-adjust the message to user's term size. However, I 
am troubled by how to pass the "format=flowed" option to the viewer.

Thanks for attention.

--
Hui Zhou

diff -ur mutt-1.4.2.1-orig/rfc1524.c mutt-1.4.2.1/rfc1524.c
--- mutt-1.4.2.1-orig/rfc1524.c 2001-05-15 03:23:49.000000000 -0400
+++ mutt-1.4.2.1/rfc1524.c      2004-04-27 15:33:32.559093688 -0400
@@ -28,6 +28,7 @@
 
 #include "mutt.h"
 #include "rfc1524.h"
+#include "mutt_curses.h"
 
 #include <string.h>
 #include <stdlib.h>
@@ -51,6 +52,20 @@
  * In addition, this function returns a 0 if the command works on a file,
  * and 1 if the command works on a pipe.
  */
+char* myitoa(unsigned int i,char* buf, int bufsize)
+{
+    unsigned lsd;
+    char* psz=buf+bufsize-1;
+    *psz=0;
+    do{
+       lsd=i%10;
+       i/=10;
+       psz--;
+       *psz='0'+lsd;
+    }while(i!=0);
+    return psz;
+}
+
 int rfc1524_expand_command (BODY *a, char *filename, char *_type,
     char *command, int clen)
 {
@@ -58,6 +73,7 @@
   int needspipe = TRUE;
   char buf[LONG_STRING];
   char type[LONG_STRING];
+  char width[17];
   
   strfcpy (type, _type, sizeof (type));
   
@@ -97,6 +113,10 @@
        y += mutt_quote_filename (buf + y, sizeof (buf) - y, filename);
        needspipe = FALSE;
       }
+      else if (command[x] == 'w')
+      {
+       y += mutt_quote_filename (buf + y, sizeof (buf) - y, 
myitoa(COLS,width,17));
+      }
       else if (command[x] == 't')
       {
        y += mutt_quote_filename (buf + y, sizeof (buf) - y, type);