See attached!

On Thu, Apr 26, 2018 at 2:30 PM, Kevin J. McCarthy <ke...@8t8.us> wrote:

> On Thu, Apr 26, 2018 at 12:15:18PM -0700, Ammon Riley wrote:
> > I'm scratching an itch, here.  I want to limit email messages to those
> with
> > pdf attachments, or text/calendar, or images, etc.  Is a merge request
> > on gitlab preferable to a patch like this?
>
> Here is fine.  I think it gives more people a change to look at it.
> Would you mind resending the patch as an attachment, I'm having trouble
> applying it because of line wrapping.
>
> --
> Kevin J. McCarthy
> GPG Fingerprint: 8975 A9B3 3AA3 7910 385C  5308 ADEF 7684 8031 6BDA
>
diff --git a/doc/manual.xml.head b/doc/manual.xml.head
index 0188803..3596c1b 100644
--- a/doc/manual.xml.head
+++ b/doc/manual.xml.head
@@ -5199,6 +5199,8 @@ shows several ways to select messages.
 <row><entry>%L <emphasis>GROUP</emphasis></entry><entry>message either originated or received by any member of <emphasis>GROUP</emphasis></entry></row>
 <row><entry>~l</entry><entry>messages addressed to a known mailing list</entry></row>
 <row><entry>~m [<emphasis>MIN</emphasis>]-[<emphasis>MAX</emphasis>]</entry><entry>messages in the range <emphasis>MIN</emphasis> to <emphasis>MAX</emphasis> *)</entry></row>
+<row><entry>~M <emphasis>EXPR</emphasis></entry><entry>messages which contain a mime Content-Type matching <emphasis>EXPR</emphasis></entry></row>
+<row><entry>=M <emphasis>STRING</emphasis></entry><entry>messages which contain a mime Content-Type containing <emphasis>STRING</emphasis></entry></row>
 <row><entry>~n [<emphasis>MIN</emphasis>]-[<emphasis>MAX</emphasis>]</entry><entry>messages with a score in the range <emphasis>MIN</emphasis> to <emphasis>MAX</emphasis> *)</entry></row>
 <row><entry>~N</entry><entry>new messages</entry></row>
 <row><entry>~O</entry><entry>old messages</entry></row>
diff --git a/doc/muttrc.man.head b/doc/muttrc.man.head
index 28591f0..b72e31d 100644
--- a/doc/muttrc.man.head
+++ b/doc/muttrc.man.head
@@ -575,6 +575,12 @@ messages either originated or received by any member of \fIGROUP\fP
 ~m \fIMIN\fP-\fIMAX\fP
 message in the range \fIMIN\fP to \fIMAX\fP
 .TP
+~M \fIEXPR\fP
+messages which contain a mime Content-Type matching \fIEXPR\fP
+.TP
+=M \fISTRING\fP
+messages which contain a mime Content-Type containing \fISTRING\fP
+.TP
 ~n \fIMIN\fP-\fIMAX\fP
 messages with a score in the range \fIMIN\fP to \fIMAX\fP
 .TP
diff --git a/mutt.h b/mutt.h
index 4fe7ce4..7c5bec2 100644
--- a/mutt.h
+++ b/mutt.h
@@ -253,6 +253,7 @@ enum
   MUTT_PGP_KEY,
   MUTT_XLABEL,
   MUTT_MIMEATTACH,
+  MUTT_MIMETYPE,
   
   /* Options for Mailcap lookup */
   MUTT_EDIT,
diff --git a/pattern.c b/pattern.c
index 285cbfa..2c70d5c 100644
--- a/pattern.c
+++ b/pattern.c
@@ -25,6 +25,7 @@
 #include "keymap.h"
 #include "mailbox.h"
 #include "copy.h"
+#include "mime.h"
 
 #include <string.h>
 #include <stdlib.h>
@@ -76,6 +77,7 @@ Flags[] =
   { 'l', MUTT_LIST,		0,		NULL },
   { 'L', MUTT_ADDRESS,		0,		eat_regexp },
   { 'm', MUTT_MESSAGE,		0,		eat_range },
+  { 'M', MUTT_MIMETYPE,		MUTT_FULL_MSG,	eat_regexp },
   { 'n', MUTT_SCORE,		0,		eat_range },
   { 'N', MUTT_NEW,			0,		NULL },
   { 'O', MUTT_OLD,			0,		NULL },
@@ -1138,6 +1140,29 @@ static int match_threadchildren(struct pattern_t *pat, pattern_exec_flag flags,
   return 0;
 }
 
+static int match_content_type(const pattern_t* pat, BODY *b)
+{
+  char buffer[STRING];
+  if (b == 0)
+    return 0;
+
+  if (snprintf(buffer, STRING, "%s/%s", TYPE (b), b->subtype) >= STRING)
+    buffer[STRING-1] = '\0';
+
+  if (b->subtype != 0 && (patmatch (pat, buffer) == 0))
+    return 1;
+  if (match_content_type (pat, b->parts))
+    return 1;
+  if (match_content_type (pat, b->next))
+    return 1;
+  return 0;
+}
+
+static int match_mime_content_type(const pattern_t *pat, CONTEXT *ctx, HEADER *hdr)
+{
+  mutt_parse_mime_message(ctx, hdr);
+  return match_content_type(pat, hdr->content);
+}
 
 /* Sets a value in the pattern_cache_t cache entry.
  * Normalizes the "true" value to 2. */
@@ -1158,7 +1183,6 @@ static int is_pattern_cache_set (int cache_entry)
   return cache_entry != 0;
 }
 
-
 /*
  * flags: MUTT_MATCH_FULL_ADDRESS - match both personal and machine address
  * cache: For repeated matches against the same HEADER, passing in non-NULL will
@@ -1338,6 +1362,10 @@ mutt_pattern_exec (struct pattern_t *pat, pattern_exec_flag flags, CONTEXT *ctx,
       return (pat->not ^ (count >= pat->min && (pat->max == MUTT_MAXRANGE ||
                                                 count <= pat->max)));
       }
+    case MUTT_MIMETYPE:
+      if (!ctx)
+        return 0;
+      return (pat->not ^ match_mime_content_type (pat, ctx, h));
     case MUTT_UNREFERENCED:
       return (pat->not ^ (h->thread && !h->thread->child));
   }

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