On Thu, Sep 28, 2017 at 11:03:30 +0200, Moritz Barsnick wrote:
> On Thu, Sep 28, 2017 at 08:57:12 +0200, Fabian Groffen wrote:
> > > I was wondering if anyone has an updated color-status patch, that was
> > > written by Thomas Glanzmann?  The version I have won't apply to mutt
> > > v1.9.1 .
> > 
> > Do you mean this patch?
> > 
> > https://sourceforge.net/p/gentoomuttpatches/code/ci/mutt-1.9/tree/features-extra/0003-feature-status-color.patch
> 
> Probably the one included here, directly from the author himself:
> https://marc.info/?l=mutt-dev&m=147176952824395

The attached patch should apply and build fine with 1.9.1. I haven't
tested it functionally... (And it lost Thomas's fine comments, as I
made it without hg.)

Cheers,
Moritz
diff -ur mutt-1.9.1/color.c mutt-1.9.1-color-status/color.c
--- mutt-1.9.1/color.c  2017-09-23 20:30:45.000000000 +0200
+++ mutt-1.9.1-color-status/color.c     2017-09-28 11:11:52.000000000 +0200
@@ -35,6 +35,7 @@
 int ColorDefs[MT_COLOR_MAX];
 COLOR_LINE *ColorHdrList = NULL;
 COLOR_LINE *ColorBodyList = NULL;
+COLOR_LINE *ColorStatusList = NULL;
 COLOR_LINE *ColorIndexList = NULL;
 
 /* local to this file */
@@ -517,7 +518,7 @@
 static int 
 add_pattern (COLOR_LINE **top, const char *s, int sensitive,
             int fg, int bg, int attr, BUFFER *err,
-            int is_index)
+            int is_index, int match)
 {
 
   /* is_index used to store compiled pattern
@@ -588,6 +589,7 @@
     }
     tmp->next = *top;
     tmp->pattern = safe_strdup (s);
+    tmp->match = match;
 #ifdef HAVE_COLOR
     if(fg != -1 && bg != -1)
     {
@@ -746,7 +748,7 @@
                   parser_callback_t callback, short dry_run)
 {
   int object = 0, attr = 0, fg = 0, bg = 0, q_level = 0;
-  int r = 0;
+  int r = 0, match = 0;
 
   if(parse_object(buf, s, &object, &q_level, err) == -1)
     return -1;
@@ -754,8 +756,6 @@
   if(callback(buf, s, &fg, &bg, &attr, err) == -1)
     return -1;
 
-  /* extract a regular expression if needed */
-  
   if (object == MT_COLOR_HEADER || object == MT_COLOR_BODY || object == 
MT_COLOR_INDEX)
   {
     if (!MoreArgs (s))
@@ -767,7 +767,7 @@
     mutt_extract_token (buf, s, 0);
   }
    
-  if (MoreArgs (s))
+  if (MoreArgs (s) && object != MT_COLOR_STATUS)
   {
     strfcpy (err->data, _("too many arguments"), err->dsize);
     return (-1);
@@ -792,12 +792,37 @@
 #endif
   
   if (object == MT_COLOR_HEADER)
-    r = add_pattern (&ColorHdrList, buf->data, 0, fg, bg, attr, err,0);
+    r = add_pattern (&ColorHdrList, buf->data, 0, fg, bg, attr, err, 0, match);
   else if (object == MT_COLOR_BODY)
-    r = add_pattern (&ColorBodyList, buf->data, 1, fg, bg, attr, err, 0);
+    r = add_pattern (&ColorBodyList, buf->data, 1, fg, bg, attr, err, 0, 
match);
+  else if (object == MT_COLOR_STATUS && MoreArgs(s))
+  {
+    /* 'color status fg bg' can have upto 2 arguments:
+     * 0 arguments: sets the default status color (handled below by else part)
+     * 1 argument : colorize pattern on match
+     * 2 arguments: colorize nth submatch of pattern
+     */
+    mutt_extract_token (buf, s, 0);
+
+    if (MoreArgs(s)) {
+      BUFFER temporary;
+      memset(&temporary, 0, sizeof(BUFFER));
+      mutt_extract_token(&temporary, s, 0);
+      match = atoi(temporary.data);
+      FREE(&temporary.data);
+    }
+
+    if (MoreArgs(s))
+    {
+      strfcpy (err->data, _("too many arguments"), err->dsize);
+      return (-1);
+    }
+
+    r = add_pattern (&ColorStatusList, buf->data, 1, fg, bg, attr, err, 0, 
match);
+  }
   else if (object == MT_COLOR_INDEX)
   {
-    r = add_pattern (&ColorIndexList, buf->data, 1, fg, bg, attr, err, 1);
+    r = add_pattern (&ColorIndexList, buf->data, 1, fg, bg, attr, err, 1, 
match);
     mutt_set_menu_redraw_full (MENU_MAIN);
   }
   else if (object == MT_COLOR_QUOTED)
diff -ur mutt-1.9.1/curs_main.c mutt-1.9.1-color-status/curs_main.c
--- mutt-1.9.1/curs_main.c      2017-09-23 20:30:45.000000000 +0200
+++ mutt-1.9.1-color-status/curs_main.c 2017-09-28 11:10:07.000000000 +0200
@@ -482,6 +482,117 @@
   menu->redraw |= REDRAW_INDEX | REDRAW_STATUS;
 }
 
+void
+mutt_draw_statusline(int cols, char *inbuf)
+{
+  int i          = 0;
+  int cnt        = 0;
+  int last_color = 0;
+  int color      = 0;
+  int offset     = 0;
+  int found = 0;
+  int null_rx = 0;
+  char buf[2048];
+
+  struct line_t {
+         short chunks;
+         struct syntax_t {
+                 int color;
+                 int first;
+                 int last;
+         } *syntax;
+  } lineInfo = { 0, 0 };
+
+  mutt_format_string(buf, sizeof(buf), cols, cols, 0, ' ', inbuf,
+                    mutt_strlen(inbuf), 0);
+
+  lineInfo.syntax = safe_malloc(sizeof(struct syntax_t));
+  lineInfo.syntax[0].first = -1;
+  lineInfo.syntax[0].last  = -1;
+  lineInfo.syntax[0].color = ColorDefs[MT_COLOR_STATUS];
+  lineInfo.chunks = 1;
+
+    do
+    {
+      found = 0;
+      null_rx = 0;
+      COLOR_LINE *color_line = ColorStatusList;
+
+      if (!buf[offset])
+       break;
+
+      while (color_line)
+      {
+        regmatch_t pmatch[color_line->match + 1];
+
+       if (regexec (&color_line->rx, buf + offset, color_line->match + 1, 
pmatch,
+                    (offset ? REG_NOTBOL : 0)) == 0)
+       {
+         if (pmatch[color_line->match].rm_eo != 
pmatch[color_line->match].rm_so)
+         {
+           if (!found)
+           {
+             if (++(lineInfo.chunks) > 1)
+               safe_realloc (&(lineInfo.syntax),
+                             (lineInfo.chunks) * sizeof (struct syntax_t));
+           }
+           i = lineInfo.chunks - 1;
+           pmatch[color_line->match].rm_so += offset;
+           pmatch[color_line->match].rm_eo += offset;
+           if (!found ||
+               pmatch[color_line->match].rm_so < (lineInfo.syntax)[i].first ||
+               (pmatch[color_line->match].rm_so == (lineInfo.syntax)[i].first 
&&
+                pmatch[color_line->match].rm_eo > (lineInfo.syntax)[i].last))
+           {
+             (lineInfo.syntax)[i].color = color_line->pair;
+             (lineInfo.syntax)[i].first = pmatch[color_line->match].rm_so;
+             (lineInfo.syntax)[i].last = pmatch[color_line->match].rm_eo;
+           }
+           found = 1;
+           null_rx = 0;
+         }
+         else
+           null_rx = 1; /* empty regexp; don't add it, but keep looking */
+       }
+       color_line = color_line->next;
+      }
+
+      if (null_rx)
+       offset++; /* avoid degenerate cases */
+      else
+       offset = (lineInfo.syntax)[i].last;
+    } while (found || null_rx);
+
+    for (cnt = 0; cnt < mutt_strlen(buf); cnt++) {
+           color = lineInfo.syntax[0].color;
+           for (i = 0; i < lineInfo.chunks; i++) {
+                   /* we assume the chunks are sorted */
+                   if (cnt > (lineInfo.syntax)[i].last)
+                           continue;
+                   if (cnt < (lineInfo.syntax)[i].first)
+                           break;
+                   if (cnt != (lineInfo.syntax)[i].last) {
+                           color = (lineInfo.syntax)[i].color;
+                           break;
+                   }
+                   /* don't break here, as cnt might be
+                    * in the next chunk as well */
+           }
+           if (color != last_color) {
+                   attrset (color);
+                   last_color = color;
+           }
+           addch (buf[cnt]); /* XXX more than one char at a time? */
+#if 0
+           waddnstr(stdscr, tgbuf, 10);
+           SETCOLOR (MT_COLOR_NORMAL);
+           waddnstr(stdscr, tgbuf + 10, -1);
+#endif
+    }
+
+    safe_free(&lineInfo.syntax);
+}
+
 static const struct mapping_t IndexHelp[] = {
   { N_("Quit"),  OP_QUIT },
   { N_("Del"),   OP_DELETE },
@@ -532,7 +643,7 @@
     menu_status_line (buf, sizeof (buf), menu, NONULL (Status));
     mutt_window_move (MuttStatusWindow, 0, 0);
     SETCOLOR (MT_COLOR_STATUS);
-    mutt_paddstr (MuttStatusWindow->cols, buf);
+    mutt_draw_statusline (MuttStatusWindow->cols, buf);
     NORMAL_COLOR;
     menu->redraw &= ~REDRAW_STATUS;
     if (option(OPTTSENABLED) && TSSupported)
diff -ur mutt-1.9.1/mutt_curses.h mutt-1.9.1-color-status/mutt_curses.h
--- mutt-1.9.1/mutt_curses.h    2017-09-23 20:30:45.000000000 +0200
+++ mutt-1.9.1-color-status/mutt_curses.h       2017-09-28 11:07:17.000000000 
+0200
@@ -143,6 +143,7 @@
 typedef struct color_line
 {
   regex_t rx;
+  int match; /* which substringmap 0 for old behaviour */
   char *pattern;
   pattern_t *color_pattern; /* compiled pattern to speed up index color
                                calculation */
@@ -218,6 +219,7 @@
 extern int ColorDefs[];
 extern COLOR_LINE *ColorHdrList;
 extern COLOR_LINE *ColorBodyList;
+extern COLOR_LINE *ColorStatusList;
 extern COLOR_LINE *ColorIndexList;
 
 void ci_init_color (void);
diff -ur mutt-1.9.1/pager.c mutt-1.9.1-color-status/pager.c
--- mutt-1.9.1/pager.c  2017-09-23 20:30:45.000000000 +0200
+++ mutt-1.9.1-color-status/pager.c     2017-09-28 11:09:36.000000000 +0200
@@ -1864,13 +1864,13 @@
       size_t l2 = sizeof (buffer);
       hfi.hdr = (IsHeader (rd->extra)) ? rd->extra->hdr : rd->extra->bdy->hdr;
       mutt_make_string_info (buffer, l1 < l2 ? l1 : l2, 
rd->pager_status_window->cols, NONULL (PagerFmt), &hfi, MUTT_FORMAT_MAKEPRINT);
-      mutt_paddstr (rd->pager_status_window->cols, buffer);
+      mutt_draw_statusline (rd->pager_status_window->cols, buffer);
     }
     else
     {
       char bn[STRING];
       snprintf (bn, sizeof (bn), "%s (%s)", rd->banner, pager_progress_str);
-      mutt_paddstr (rd->pager_status_window->cols, bn);
+      mutt_draw_statusline (rd->pager_status_window->cols, bn);
     }
     NORMAL_COLOR;
     if (option(OPTTSENABLED) && TSSupported)
diff -ur mutt-1.9.1/protos.h mutt-1.9.1-color-status/protos.h
--- mutt-1.9.1/protos.h 2017-09-23 20:30:45.000000000 +0200
+++ mutt-1.9.1-color-status/protos.h    2017-09-28 11:08:05.000000000 +0200
@@ -181,6 +181,7 @@
 void mutt_default_save (char *, size_t, HEADER *);
 void mutt_display_address (ENVELOPE *);
 void mutt_display_sanitize (char *);
+void mutt_draw_statusline(int n, char *);
 int mutt_edit_content_type (HEADER *, BODY *, FILE *);
 void mutt_edit_file (const char *, const char *);
 void mutt_edit_headers (const char *, const char *, HEADER *, char *, size_t);

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