]> git.notmuchmail.org Git - notmuch/blobdiff - vim/plugin/notmuch.vim
nmbug: move from contrib to devel
[notmuch] / vim / plugin / notmuch.vim
index d3e313533060fca8728d899083a7ed7d0fc046b9..8f27fb9273d2efb124c6de8f27cd8ceeaee23deb 100644 (file)
 " along with Notmuch.  If not, see <http://www.gnu.org/licenses/>.
 "
 " Authors: Bart Trojanowski <bart@jukie.net>
-
+" Contributors: Felipe Contreras <felipe.contreras@gmail.com>,
+"   Peter Hartman <peterjohnhartman@gmail.com>
+"
 " --- configuration defaults {{{1
 
 let s:notmuch_defaults = {
         \ 'g:notmuch_cmd':                           'notmuch'                    ,
+        \ 'g:notmuch_sendmail':                      '/usr/sbin/sendmail'         ,
         \ 'g:notmuch_debug':                         0                            ,
         \
         \ 'g:notmuch_search_newest_first':           1                            ,
@@ -33,19 +36,19 @@ let s:notmuch_defaults = {
         \ 'g:notmuch_show_fold_bodies':              0                            ,
         \ 'g:notmuch_show_fold_headers':             1                            ,
         \
-        \ 'g:notmuch_show_message_begin_regexp':     '^\fmessage{'                ,
-        \ 'g:notmuch_show_message_end_regexp':       '^\fmessage}'                ,
-        \ 'g:notmuch_show_header_begin_regexp':      '^\fheader{'                 ,
-        \ 'g:notmuch_show_header_end_regexp':        '^\fheader}'                 ,
-        \ 'g:notmuch_show_body_begin_regexp':        '^\fbody{'                   ,
-        \ 'g:notmuch_show_body_end_regexp':          '^\fbody}'                   ,
-        \ 'g:notmuch_show_attachment_begin_regexp':  '^\fattachment{'             ,
-        \ 'g:notmuch_show_attachment_end_regexp':    '^\fattachment}'             ,
-        \ 'g:notmuch_show_part_begin_regexp':        '^\fpart{'                   ,
-        \ 'g:notmuch_show_part_end_regexp':          '^\fpart}'                   ,
-        \ 'g:notmuch_show_marker_regexp':            '^\f\\(message\\|header\\|body\\|attachment\\|part\\)[{}].*$',
+        \ 'g:notmuch_show_message_begin_regexp':     '\fmessage{'                ,
+        \ 'g:notmuch_show_message_end_regexp':       '\fmessage}'                ,
+        \ 'g:notmuch_show_header_begin_regexp':      '\fheader{'                 ,
+        \ 'g:notmuch_show_header_end_regexp':        '\fheader}'                 ,
+        \ 'g:notmuch_show_body_begin_regexp':        '\fbody{'                   ,
+        \ 'g:notmuch_show_body_end_regexp':          '\fbody}'                   ,
+        \ 'g:notmuch_show_attachment_begin_regexp':  '\fattachment{'             ,
+        \ 'g:notmuch_show_attachment_end_regexp':    '\fattachment}'             ,
+        \ 'g:notmuch_show_part_begin_regexp':        '\fpart{'                   ,
+        \ 'g:notmuch_show_part_end_regexp':          '\fpart}'                   ,
+        \ 'g:notmuch_show_marker_regexp':            '\f\\(message\\|header\\|body\\|attachment\\|part\\)[{}].*$',
         \
-        \ 'g:notmuch_show_message_parse_regexp':     '\(id:[^ ]*\) depth:\([0-9]*\) match:\([0-9]*\) filename:\(.*\)$',
+        \ 'g:notmuch_show_message_parse_regexp':     '\(id:[^ ]*\) depth:\([0-9]*\) match:\([0-9]*\) excluded:\([0-9]*\) filename:\(.*\)$',
         \ 'g:notmuch_show_tags_regexp':              '(\([^)]*\))$'               ,
         \
         \ 'g:notmuch_show_signature_regexp':         '^\(-- \?\|_\+\)$'           ,
@@ -53,7 +56,9 @@ let s:notmuch_defaults = {
         \
         \ 'g:notmuch_show_citation_regexp':          '^\s*>'                      ,
         \
-        \ 'g:notmuch_compose_temp_file_dir':         '~/.notmuch/compose/'        ,
+        \ 'g:notmuch_compose_insert_mode_start':     1                            ,
+        \ 'g:notmuch_compose_header_help':           1                            ,
+        \ 'g:notmuch_compose_temp_file_dir':         '~/.notmuch/compose'         ,
         \ }
 
 " defaults for g:notmuch_initial_search_words
@@ -103,6 +108,7 @@ let s:notmuch_compose_headers_defaults = [
 " --- --- bindings for folders mode {{{2
 
 let g:notmuch_folders_maps = {
+        \ 'm':          ':call <SID>NM_new_mail()<CR>',
         \ 's':          ':call <SID>NM_search_prompt()<CR>',
         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
         \ '=':          ':call <SID>NM_folders_refresh_view()<CR>',
@@ -111,9 +117,13 @@ let g:notmuch_folders_maps = {
 
 " --- --- bindings for search screen {{{2
 let g:notmuch_search_maps = {
-        \ '<Enter>':    ':call <SID>NM_search_show_thread()<CR>',
+        \ '<Space>':    ':call <SID>NM_search_show_thread(0)<CR>',
+        \ '<Enter>':    ':call <SID>NM_search_show_thread(1)<CR>',
         \ '<C-]>':      ':call <SID>NM_search_expand(''<cword>'')<CR>',
+        \ 'I':          ':call <SID>NM_search_mark_read_thread()<CR>',
         \ 'a':          ':call <SID>NM_search_archive_thread()<CR>',
+        \ 'A':          ':call <SID>NM_search_mark_read_then_archive_thread()<CR>',
+        \ 'D':          ':call <SID>NM_search_delete_thread()<CR>',
         \ 'f':          ':call <SID>NM_search_filter()<CR>',
         \ 'm':          ':call <SID>NM_new_mail()<CR>',
         \ 'o':          ':call <SID>NM_search_toggle_order()<CR>',
@@ -125,7 +135,7 @@ let g:notmuch_search_maps = {
         \ '+':          ':call <SID>NM_search_add_tags([])<CR>',
         \ '-':          ':call <SID>NM_search_remove_tags([])<CR>',
         \ '=':          ':call <SID>NM_search_refresh_view()<CR>',
-        \ '?':          ':echo <SID>NM_search_thread_id()<CR>',
+        \ '?':          ':echo <SID>NM_search_thread_id() . ''  @ '' . join(<SID>NM_get_search_words())<CR>',
         \ }
 
 " --- --- bindings for show screen {{{2
@@ -134,14 +144,18 @@ let g:notmuch_show_maps = {
         \ '<C-N>':      ':call <SID>NM_show_next(1, 0)<CR>',
         \ '<C-]>':      ':call <SID>NM_search_expand(''<cword>'')<CR>',
         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
+        \ 's':          ':call <SID>NM_search_prompt()<CR>',
         \
         \ 'b':          ':call <SID>NM_show_fold_toggle(''b'', ''bdy'', !g:notmuch_show_fold_bodies)<CR>',
         \ 'c':          ':call <SID>NM_show_fold_toggle(''c'', ''cit'', !g:notmuch_show_fold_citations)<CR>',
         \ 'h':          ':call <SID>NM_show_fold_toggle(''h'', ''hdr'', !g:notmuch_show_fold_headers)<CR>',
-        \ 's':          ':call <SID>NM_show_fold_toggle(''s'', ''sig'', !g:notmuch_show_fold_signatures)<CR>',
+        \ 'i':          ':call <SID>NM_show_fold_toggle(''i'', ''sig'', !g:notmuch_show_fold_signatures)<CR>',
         \
+        \ 'I':          ':call <SID>NM_show_mark_read_thread()<CR>',
         \ 'a':          ':call <SID>NM_show_archive_thread()<CR>',
         \ 'A':          ':call <SID>NM_show_mark_read_then_archive_thread()<CR>',
+        \ 'D':          ':call <SID>NM_show_delete_thread()<CR>',
+        \ 'd':          ':call <SID>NM_show_delete_message()<CR>',
         \ 'N':          ':call <SID>NM_show_mark_read_then_next_open_message()<CR>',
         \ 'v':          ':call <SID>NM_show_view_all_mime_parts()<CR>',
         \ '+':          ':call <SID>NM_show_add_tag()<CR>',
@@ -155,12 +169,13 @@ let g:notmuch_show_maps = {
         \
         \ 'r':          ':call <SID>NM_show_reply()<CR>',
         \ 'm':          ':call <SID>NM_new_mail()<CR>',
-        \ '?':          ':echo <SID>NM_show_message_id() . ''  @ '' . join(<SID>NM_show_search_words())<CR>',
+        \ '?':          ':echo <SID>NM_show_message_id() . ''  @ '' . join(<SID>NM_get_search_words())<CR>',
         \ }
 
 " --- --- bindings for compose screen {{{2
 let g:notmuch_compose_nmaps = {
         \ ',s':         ':call <SID>NM_compose_send()<CR>',
+        \ ',a':         ':call <SID>NM_compose_attach()<CR>',
         \ ',q':         ':call <SID>NM_kill_this_buffer()<CR>',
         \ '<Tab>':      ':call <SID>NM_compose_next_entry_area()<CR>',
         \ }
@@ -172,7 +187,7 @@ let g:notmuch_compose_imaps = {
 
 function! s:NM_cmd_folders(words)
         if len(a:words)
-                echoe 'Not exapecting any arguments for folders command.'
+                throw 'Not expecting any arguments for folders command.'
         endif
         let cmd = ['count']
         let disp = []
@@ -185,7 +200,7 @@ function! s:NM_cmd_folders(words)
                 call add(searches, search)
         endfor
 
-        call <SID>NM_newBuffer('folders', join(disp, "\n"))
+        call <SID>NM_newBuffer('', 'folders', join(disp, "\n"))
         let b:nm_searches = searches
         let b:nm_timestamp = reltime()
 
@@ -233,45 +248,40 @@ function! s:NM_cmd_search(words)
         let disp = copy(lines)
         call map(disp, 's:NM_cmd_search_fmtline(v:val)')
 
-        call <SID>NM_newBuffer('search', join(disp, "\n"))
+        call <SID>NM_newBuffer('', 'search', join(disp, "\n"))
         let b:nm_raw_lines = lines
         let b:nm_search_words = a:words
 
-        call <SID>NM_cmd_search_mksyntax()
         call <SID>NM_set_map('n', g:notmuch_search_maps)
         setlocal cursorline
         setlocal nowrap
 endfunction
 function! s:NM_cmd_search_fmtline(line)
-        let m = matchlist(a:line, '^\(thread:\S\+\)\s\([^]]\+\]\) \([^;]\+\); \(.*\) (\([^(]*\))$')
+        let m = matchlist(a:line, '^\(thread:\S\+\)\s\(.\{12\}\) \[\(\d\+\)/\d\+\] \([^;]\+\); \%(\[[^\[]\+\] \)*\(.*\) (\([^(]*\))$')
         if !len(m)
                 return 'ERROR PARSING: ' . a:line
         endif
         let max = g:notmuch_search_from_column_width
-        let from = m[3]
-        if strlen(from) >= max
-                let from = substitute(m[3][0:max-4], '[^A-Za-z1-9_]*$', '', '') . '...'
-        endif
-        return printf('%-20s %-20s | %s (%s)', m[2], from, m[4], m[5])
-endfunction
-function! s:NM_cmd_search_mksyntax()
-        syntax clear nmSearchFrom
-        exec printf('syntax match nmSearchFrom /\(\] \)\@<=.\{%d\}/ oneline contained', g:notmuch_search_from_column_width)
+        let flist = {}
+        for at in split(m[4], '[|,] ')
+                let p = split(at, '[@.]')
+                let flist[p[0]] = 1
+        endfor
+        let from = join(keys(flist), ", ")
+        return printf("%-12s %3s %-20.20s | %s (%s)", m[2], m[3], from, m[5], m[6])
 endfunction
 
 " --- --- search screen action functions {{{2
 
-function! s:NM_search_show_thread()
-        let id = <SID>NM_search_thread_id()
-        if id != ''
-                let words = [id]
-                if exists('b:nm_search_words')
-                        let words = ['('] + b:nm_search_words + [')', 'and', id]
-                endif
-                if len(words)
-                        call <SID>NM_cmd_show(words)
-                endif
+function! s:NM_search_show_thread(everything)
+        let words = [ <SID>NM_search_thread_id() ]
+        if !a:everything && exists('b:nm_search_words')
+                call extend(words, ['AND', '('])
+                call extend(words, b:nm_search_words)
+                call add(words, ')')
         endif
+        call <SID>NM_cmd_show(words)
+        let b:nm_show_everything = a:everything
 endfunction
 
 function! s:NM_search_prompt()
@@ -304,9 +314,23 @@ function! s:NM_search_edit()
         endif
 endfunction
 
+function! s:NM_search_mark_read_thread()
+        call <SID>NM_tag([], ['-unread'])
+        norm j
+endfunction
+
 function! s:NM_search_archive_thread()
-        call <SID>NM_add_remove_tags_on_screen('', '-', ['inbox'])
-        call <SID>NM_add_remove_tags([], '-', ['inbox'])
+        call <SID>NM_tag([], ['-inbox'])
+        norm j
+endfunction
+
+function! s:NM_search_mark_read_then_archive_thread()
+        call <SID>NM_tag([], ['-unread', '-inbox'])
+        norm j
+endfunction
+
+function! s:NM_search_delete_thread()
+        call <SID>NM_tag([], ['+delete','-inbox','-unread'])
         norm j
 endfunction
 
@@ -320,23 +344,13 @@ endfunction
 
 function! s:NM_search_filter_helper(prompt, prefix, joiner)
         " TODO: input() can support completion
-        let text = input(a:prompt)
+        let text = substitute(input(a:prompt), '\v(^\s*|\s*$|\n)', '', 'g')
         if !strlen(text)
                 return
         endif
 
-        let tags = split(text)
-        if strlen(a:prefix)
-                call map(tags, 'a:prefix . v:val')
-        endif
-        if strlen(a:joiner)
-                let idx = len(tags) - 1
-                while idx > 0
-                        call insert(tags, a:joiner, idx)
-                        let idx = idx - 1
-                endwhile
-        endif
-        let tags = b:nm_search_words + ['and', '('] + tags + [')']
+        let tags = b:nm_search_words + ['AND']
+                 \ + <SID>NM_combine_tags(a:prefix, split(text), a:joiner, '()')
 
         let prev_bufnr = bufnr('%')
         setlocal bufhidden=hide
@@ -353,7 +367,14 @@ function! s:NM_search_toggle_order()
 endfunction
 
 function! s:NM_search_reply_to_thread()
-        echo 'not implemented'
+        let cmd = ['reply']
+        call add(cmd, <SID>NM_search_thread_id())
+        call add(cmd, 'AND')
+        call extend(cmd, <SID>NM_get_search_words())
+
+        let data = <SID>NM_run(cmd)
+        let lines = split(data, "\n")
+        call <SID>NM_newComposeBuffer(lines, 0)
 endfunction
 
 function! s:NM_search_add_tags(tags)
@@ -378,14 +399,12 @@ endfunction
 
 function! s:NM_search_thread_id()
         if !exists('b:nm_raw_lines')
-                echoe 'no b:nm_raw_lines'
-                return ''
+                throw 'Eeek! no b:nm_raw_lines'
         endif
         let mnum = line('.') - 1
         if len(b:nm_raw_lines) <= mnum
                 return ''
         endif
-        echo 'len=' . string(len(b:nm_raw_lines)) . '  mnum=' . string(mnum)
         let info = b:nm_raw_lines[mnum]
         let what = split(info, '\s\+')[0]
         return what
@@ -402,23 +421,23 @@ function! s:NM_search_add_remove_tags(prompt, prefix, intags)
         else
                 let tags = a:intags
         endif
-        call <SID>NM_add_remove_tags([], a:prefix, tags)
-        call <SID>NM_add_remove_tags_on_screen('', a:prefix, tags)
+        call map(tags, 'a:prefix . v:val')
+        call <SID>NM_tag([], tags)
 endfunction
 
 " --- implement show screen {{{1
 
 function! s:NM_cmd_show(words)
         let prev_bufnr = bufnr('%')
-        let data = s:NM_run(['show'] + a:words)
+        let data = s:NM_run(['show', '--entire-thread'] + a:words)
         let lines = split(data, "\n")
 
         let info = s:NM_cmd_show_parse(lines)
 
         setlocal bufhidden=hide
-        call <SID>NM_newBuffer('show', join(info['disp'], "\n"))
+        call <SID>NM_newBuffer('', 'show', join(info['disp'], "\n"))
         setlocal bufhidden=delete
-        let b:nm_words = a:words
+        let b:nm_search_words = a:words
         let b:nm_raw_info = info
         let b:nm_prev_bufnr = prev_bufnr
 
@@ -432,6 +451,7 @@ function! s:NM_cmd_show(words)
 endfunction
 
 function! s:NM_show_previous(can_change_thread, find_matching)
+        let everything = exists('b:nm_show_everything') ? b:nm_show_everything : 0
         let info = b:nm_raw_info
         let lnum = line('.')
         for msg in reverse(copy(info['msgs']))
@@ -452,7 +472,7 @@ function! s:NM_show_previous(can_change_thread, find_matching)
         call <SID>NM_kill_this_buffer()
         if line('.') > 1
                 norm k
-                call <SID>NM_search_show_thread()
+                call <SID>NM_search_show_thread(everything)
                 norm G
                 call <SID>NM_show_previous(0, a:find_matching)
         else
@@ -481,21 +501,39 @@ function! s:NM_show_next(can_change_thread, find_matching)
 endfunction
 
 function! s:NM_show_next_thread()
+        let everything = exists('b:nm_show_everything') ? b:nm_show_everything : 0
         call <SID>NM_kill_this_buffer()
         if line('.') != line('$')
                 norm j
-                call <SID>NM_search_show_thread()
+                call <SID>NM_search_show_thread(everything)
         else
                 echo 'No more messages.'
         endif
 endfunction
 
+function! s:NM_show_mark_read_thread()
+        call <SID>NM_tag(b:nm_search_words, ['-unread'])
+        call <SID>NM_show_next_thread()
+endfunction
+
 function! s:NM_show_archive_thread()
-        echo 'not implemented'
+        call <SID>NM_tag(b:nm_search_words, ['-inbox'])
+        call <SID>NM_show_next_thread()
 endfunction
 
 function! s:NM_show_mark_read_then_archive_thread()
-        echo 'not implemented'
+        call <SID>NM_tag(b:nm_search_words, ['-unread', '-inbox'])
+        call <SID>NM_show_next_thread()
+endfunction
+
+function! s:NM_show_delete_thread()
+        call <SID>NM_tag(b:nm_search_words, ['+delete', '-inbox', '-unread'])
+        call <SID>NM_show_next_thread()
+endfunction
+
+function! s:NM_show_delete_message()
+        let msg = <SID>NM_show_get_message_for_line(line('.'))
+        call <SID>NM_tag([msg['id']], ['+delete', '-inbox', '-unread'])
 endfunction
 
 function! s:NM_show_mark_read_then_next_open_message()
@@ -507,7 +545,14 @@ function! s:NM_show_previous_message()
 endfunction
 
 function! s:NM_show_reply()
-        echo 'not implemented'
+        let cmd = ['reply']
+        call add(cmd, <SID>NM_show_message_id())
+        call add(cmd, 'AND')
+        call extend(cmd, <SID>NM_get_search_words())
+
+        let data = <SID>NM_run(cmd)
+        let lines = split(data, "\n")
+        call <SID>NM_newComposeBuffer(lines, 0)
 endfunction
 
 function! s:NM_show_view_all_mime_parts()
@@ -537,7 +582,7 @@ function! s:NM_show_advance_marking_read_and_archiving()
 
         let msg_top = <SID>NM_show_get_message_for_line(vis_top)
         if !has_key(msg_top,'id')
-                echo "No top visible message."
+                throw "No top visible message."
         endif
 
         " if the top message is the last message, just expunge the entire thread and move on
@@ -545,34 +590,34 @@ function! s:NM_show_advance_marking_read_and_archiving()
                 let ids = []
                 for msg in b:nm_raw_info['msgs']
                         if has_key(msg,'match') && msg['match'] != '0'
-                                if len(ids)
-                                        call add(ids, 'OR')
-                                endif
                                 call add(ids, msg['id'])
                         endif
                 endfor
-
-                let filter = ['('] + advance_tags + [')', 'AND', '('] + ids + [')']
-                call <SID>NM_add_remove_tags(filter, '-', advance_tags)
+                let filter = <SID>NM_combine_tags('tag:', advance_tags, 'OR', '()')
+                         \ + ['AND']
+                         \ + <SID>NM_combine_tags('', ids, 'OR', '()')
+                call map(advance_tags, '"-" . v:val')
+                call <SID>NM_tag(filter, advance_tags)
                 call <SID>NM_show_next(1, 1)
                 return
         endif
 
         let msg_bot = <SID>NM_show_get_message_for_line(vis_bot)
         if !has_key(msg_bot,'id')
-                echo "No bottom visible message."
+                throw "No bottom visible message."
         endif
 
         " if entire message fits on the screen, read/archive it, move to the next one
         if msg_top['id'] != msg_bot['id'] || msg_top['end'] <= vis_bot
-                call <SID>NM_add_remove_tags_on_screen(msg_top['start'], '-', advance_tags)
                 exec printf('norm %dG', vis_top)
                 call <SID>NM_show_next(0, 1)
                 if has_key(msg_top,'match') && msg_top['match'] != '0'
                         redraw
                         " do this last to hide the latency
-                        let filter = ['('] + advance_tags + [')', 'AND', msg_top['id']]
-                        call <SID>NM_add_remove_tags(filter, '-', advance_tags)
+                        let filter = <SID>NM_combine_tags('tag:', advance_tags, 'OR', '()')
+                                 \ + ['AND', msg_top['id']]
+                        call map(advance_tags, '"-" . v:val')
+                        call <SID>NM_tag(filter, advance_tags)
                 endif
                 return
         endif
@@ -618,8 +663,7 @@ endfunction
 
 function! s:NM_show_message_id()
         if !exists('b:nm_raw_info')
-                echoe 'no b:nm_raw_info'
-                return ''
+                throw 'Eeek! no b:nm_raw_info'
         endif
         let msg = <SID>NM_show_get_message_for_line(line('.'))
         if has_key(msg,'id')
@@ -628,14 +672,6 @@ function! s:NM_show_message_id()
         return ''
 endfunction
 
-function! s:NM_show_search_words()
-        if !exists('b:nm_words')
-                echoe 'no b:nm_words'
-                return []
-        endif
-        return b:nm_words
-endfunction
-
 function! s:NM_show_fold_toggle(key, type, fold)
         let info = b:nm_raw_info
         let act = 'open'
@@ -643,9 +679,19 @@ function! s:NM_show_fold_toggle(key, type, fold)
                 let act = 'close'
         endif
         for fld in info['folds']
-                if fld[0] == a:type
-                        exec printf('%dfold%s', fld[1], act)
+                if fld[0] != a:type
+                        continue
+                endif
+                "let idx = fld[3]
+                "let msg = info['msgs'][idx]
+                "if has_key(msg,'match') && msg['match'] == '0'
+                "        continue
+                "endif
+                let cls = foldclosed(fld[1])
+                if cls != -1 && cls != fld[1]
+                        continue
                 endif
+                exec printf('%dfold%s', fld[1], act)
         endfor
         exec printf('nnoremap <buffer> %s :call <SID>NM_show_fold_toggle(''%s'', ''%s'', %d)<CR>', a:key, a:key, a:type, !a:fold)
 endfunction
@@ -701,8 +747,11 @@ function! s:NM_cmd_show_parse(inlines)
                                 elseif mode_type == 'cit'
                                         if part_end || match(line, g:notmuch_show_citation_regexp) == -1
                                                 let outlnum = len(info['disp'])
-                                                let foldinfo = [ mode_type, mode_start, outlnum-1, len(info['msgs']),
-                                                               \ printf('[ %d-line citation.  Press "c" to show. ]', outlnum - mode_start) ]
+                                                if !part_end
+                                                        let outlnum = outlnum - 1
+                                                endif
+                                                let foldinfo = [ mode_type, mode_start, outlnum, len(info['msgs']),
+                                                               \ printf('[ %d-line citation.  Press "c" to show. ]', 1 + outlnum - mode_start) ]
                                                 let mode_type = ''
                                         endif
                                 elseif mode_type == 'sig'
@@ -710,8 +759,8 @@ function! s:NM_cmd_show_parse(inlines)
                                         if (outlnum - mode_start) > g:notmuch_show_signature_lines_max
                                                 let mode_type = ''
                                         elseif part_end
-                                                let foldinfo = [ mode_type, mode_start, outlnum-1, len(info['msgs']),
-                                                               \ printf('[ %d-line signature.  Press "s" to show. ]', outlnum - mode_start) ]
+                                                let foldinfo = [ mode_type, mode_start, outlnum, len(info['msgs']),
+                                                               \ printf('[ %d-line signature.  Press "i" to show. ]', 1 + outlnum - mode_start) ]
                                                 let mode_type = ''
                                         endif
                                 endif
@@ -719,7 +768,7 @@ function! s:NM_cmd_show_parse(inlines)
 
                         if part_end
                                 " FIXME: this is a hack for handling two folds being added for one line
-                                "         we should handle addinga fold in a function
+                                "         we should handle adding a fold in a function
                                 if len(foldinfo) && foldinfo[1] < foldinfo[2]
                                         call add(info['folds'], foldinfo[0:3])
                                         let info['foldtext'][foldinfo[1]] = foldinfo[4]
@@ -750,7 +799,14 @@ function! s:NM_cmd_show_parse(inlines)
                                 endif
                                 call add(info['disp'],
                                          \ printf('--- %s ---', in_part))
-                                let part_start = len(info['disp']) + 1
+                                " We don't yet handle nested parts, so pop
+                                " multipart/* immediately so text/plain
+                                " sub-parts are parsed properly
+                                if match(in_part, '^multipart/') != -1
+                                        let in_part = ''
+                                else
+                                        let part_start = len(info['disp']) + 1
+                                endif
                         endif
 
                 elseif in_header
@@ -814,7 +870,8 @@ function! s:NM_cmd_show_parse(inlines)
                                         let msg['id'] = m[1]
                                         let msg['depth'] = m[2]
                                         let msg['match'] = m[3]
-                                        let msg['filename'] = m[4]
+                                        let msg['excluded'] = m[4]
+                                        let msg['filename'] = m[5]
                                 endif
 
                                 let in_message = 1
@@ -880,7 +937,7 @@ function! s:NM_cmd_compose(words, body_lines)
 
         let hdrs = { }
         for word in a:words
-                let m = matchlist(word, '^\([^:]\+\):\s*\(.*\)\s*$')
+                let m = matchlist(word, '^\(\w[^:]*\):\s*\(.*\)\s*$')
                 if !len(m)
                         throw 'Eeek! bad parameter ''' . string(word) . ''''
                 endif
@@ -913,7 +970,7 @@ function! s:NM_cmd_compose(words, body_lines)
                 endif
         endfor
 
-        call extend(lines, [ '', '' ])
+        call add(lines, '')
         if !start_on_line
                 let start_on_line = len(lines) + 1
         endif
@@ -921,36 +978,78 @@ function! s:NM_cmd_compose(words, body_lines)
         if len(a:body_lines)
                 call extend(lines, a:body_lines)
         else
-                call add(lines, '')
+                call extend(lines, [ '', '' ])
         endif
-        call extend(lines, g:notmuch_signature)
 
-        let prev_bufnr = bufnr('%')
-        setlocal bufhidden=hide
-        call <SID>NM_newFileBuffer(g:notmuch_compose_temp_file_dir, '%s.mail',
-                                  \ 'compose', lines)
-        setlocal bufhidden=hide
+        call <SID>NM_newComposeBuffer(lines, start_on_line)
+endfunction
 
-        call <SID>NM_cmd_compose_mksyntax()
-        call <SID>NM_set_map('n', g:notmuch_compose_nmaps)
-        call <SID>NM_set_map('i', g:notmuch_compose_imaps)
+function! s:NM_compose_send()
+        call <SID>NM_assert_buffer_type('compose')
+        let fname = expand('%')
+        let lnum = 1
+        let line = getline(lnum)
+        let lst_hdr = ''
+        while match(line, '^$') == -1
+                if !exists("hdr_starts") && match(line, '^Notmuch-Help:') == -1
+                        let hdr_starts = lnum - 1
+                endif
+                let lnum = lnum + 1
+                let line = getline(lnum)
+        endwhile
+        let body_starts = lnum - 1
 
-        exec printf('norm %dG', start_on_line)
-        startinsert!
-        echo 'Type your message, use <TAB> to jump to next header and then body.'
-endfunction
-function! s:NM_cmd_compose_mksyntax()
-        silent! setlocal syntax=mail
+        call append(body_starts, 'Date: ' . strftime('%a, %d %b %Y %H:%M:%S %z'))
+        exec printf(':0,%dd', hdr_starts)
+        write
+
+        let line = getline(1)
+        let m = matchlist(line, '^From:\s*\(.*\)\s*<\(.*\)>$')
+        if (len(m) >= 2)
+                let from = m[2]
+        else
+                let m = matchlist(line, '^From:\s*\(.*\)$')
+                let from = m[1]
+        endif
+
+        let cmdtxt = g:notmuch_sendmail . ' -t -f ' . from . ' < ' . fname
+        let out = system(cmdtxt)
+        let err = v:shell_error
+        if err
+                undo
+                write
+                call <SID>NM_newBuffer('new', 'error',
+                            \ "While running...\n" .
+                            \ '  ' . cmdtxt . "\n" .
+                            \ "\n" .
+                            \ "Failed with...\n" .
+                            \ substitute(out, '^', '  ', 'g'))
+                echohl Error
+                echo 'Eeek! unable to send mail'
+                echohl None
+                return
+        endif
+
+        if !exists('b:nm_prev_bufnr')
+                bdelete
+        else
+                let prev_bufnr = b:nm_prev_bufnr
+                bdelete
+                if prev_bufnr == bufnr('%')
+                        exec printf("buffer %d", prev_bufnr)
+                endif
+        endif
+        call delete(fname)
+        echo 'Mail sent successfully.'
 endfunction
 
-function! s:NM_compose_send()
+function! s:NM_compose_attach()
         echo 'not implemented'
 endfunction
 
 function! s:NM_compose_next_entry_area()
         let lnum = line('.')
         let hdr_end = <SID>NM_compose_find_line_match(1,'^$',1)
-        echo 'header end = ' . string(hdr_end)
         if lnum < hdr_end
                 let lnum = lnum + 1
                 let line = getline(lnum)
@@ -968,7 +1067,6 @@ function! s:NM_compose_next_entry_area()
                 call cursor(lnum+1, strlen(getline(lnum+1)) + 1)
                 return ''
         endif
-        echo 'mode=' . mode()
         if mode() == 'i'
                 if !getbufvar(bufnr('.'), '&et')
                         return "\t"
@@ -984,11 +1082,9 @@ endfunction
 " --- --- compose screen helper functions {{{2
 
 function! s:NM_compose_get_user_email()
-        let name = substitute(system('id -u -n'), '\v(^\s*|\s*$|\n)', '', 'g')
-        let fqdn = substitute(system('hostname -f'), '\v(^\s*|\s*$|\n)', '', 'g')
-
-        " TODO: do this properly
-        return name . '@' . fqdn
+        " TODO: do this properly (still), i.e., allow for multiple email accounts
+        let email = substitute(system('notmuch config get user.primary_email'), '\v(^\s*|\s*$|\n)', '', 'g')
+       return email
 endfunction
 
 function! s:NM_compose_find_line_match(start, pattern, failure)
@@ -1006,8 +1102,12 @@ endfunction
 
 " --- notmuch helper functions {{{1
 
-function! s:NM_newBuffer(type, content)
-        enew
+function! s:NM_newBuffer(how, type, content)
+        if strlen(a:how)
+                exec a:how
+        else
+                enew
+        endif
         setlocal buftype=nofile readonly modifiable scrolloff=0 sidescrolloff=0
         silent put=a:content
         keepjumps 0d
@@ -1033,6 +1133,57 @@ function! s:NM_newFileBuffer(fdir, fname, type, lines)
         let b:nm_type = a:type
 endfunction
 
+function! s:NM_newComposeBuffer(lines, start_on_line)
+        let lines = a:lines
+        let start_on_line = a:start_on_line
+        let real_hdr_start = 1
+        if g:notmuch_compose_header_help
+                let help_lines = [
+                  \ 'Notmuch-Help: Type in your message here; to help you use these bindings:',
+                  \ 'Notmuch-Help:   ,a    - attach a file',
+                  \ 'Notmuch-Help:   ,s    - send the message (Notmuch-Help lines will be removed)',
+                  \ 'Notmuch-Help:   ,q    - abort the message',
+                  \ 'Notmuch-Help:   <Tab> - skip through header lines',
+                  \ ]
+                call extend(lines, help_lines, 0)
+                let real_hdr_start = len(help_lines)
+                if start_on_line > 0
+                        let start_on_line = start_on_line + len(help_lines)
+                endif
+        endif
+        call extend(lines, g:notmuch_signature)
+
+
+        let prev_bufnr = bufnr('%')
+        setlocal bufhidden=hide
+        call <SID>NM_newFileBuffer(g:notmuch_compose_temp_file_dir, '%s.mail',
+                                  \ 'compose', lines)
+        setlocal bufhidden=hide
+        let b:nm_prev_bufnr = prev_bufnr
+
+        call <SID>NM_set_map('n', g:notmuch_compose_nmaps)
+        call <SID>NM_set_map('i', g:notmuch_compose_imaps)
+
+        if start_on_line > 0 && start_on_line <= len(lines)
+                call cursor(start_on_line, strlen(getline(start_on_line)) + 1)
+        else
+                call cursor(real_hdr_start, strlen(getline(real_hdr_start)) + 1)
+                call <SID>NM_compose_next_entry_area()
+        endif
+
+        if g:notmuch_compose_insert_mode_start
+                startinsert!
+        endif
+        echo 'Type your message, use <TAB> to jump to next header and then body.'
+endfunction
+
+function! s:NM_assert_buffer_type(type)
+        if !exists('b:nm_type') || b:nm_type != a:type
+                throw printf('Eeek! expected type %s, but got %s.', a:type,
+                            \ exists(b:nm_type) ? b:nm_type : 'something else')
+        endif
+endfunction
+
 function! s:NM_mktemp(dir, name)
         let time_stamp = strftime('%Y%m%d-%H%M%S')
         let file_name = substitute(a:dir,'/*$','/','') . printf(a:name, time_stamp)
@@ -1091,13 +1242,16 @@ function! s:NM_run(args)
         call map(words, 's:NM_shell_escape(v:val)')
         let cmd = g:notmuch_cmd . ' ' . join(words) . '< /dev/null'
 
-        let start = reltime()
-        let out = system(cmd)
-        let err = v:shell_error
-        let delta = reltime(start)
-
         if exists('g:notmuch_debug') && g:notmuch_debug
+                let start = reltime()
+                let out = system(cmd)
+                let err = v:shell_error
+                let delta = reltime(start)
+
                 echo printf('[%s] {%s} %s', reltimestr(delta), string(err), string(cmd))
+        else
+                let out = system(cmd)
+                let err = v:shell_error
         endif
 
         if err
@@ -1113,15 +1267,47 @@ endfunction
 " --- external mail handling helpers {{{1
 
 function! s:NM_new_mail()
-        echo 'not implemented'
+        call <SID>NM_cmd_compose([], [])
+endfunction
+
+" --- tag manipulation helpers {{{1
+
+" used to combine an array of words with prefixes and separators
+" example:
+"     NM_combine_tags('tag:', ['one', 'two', 'three'], 'OR', '()')
+"  -> ['(', 'tag:one', 'OR', 'tag:two', 'OR', 'tag:three', ')']
+function! s:NM_combine_tags(word_prefix, words, separator, brackets)
+        let res = []
+        for word in a:words
+                if len(res) && strlen(a:separator)
+                        call add(res, a:separator)
+                endif
+                call add(res, a:word_prefix . word)
+        endfor
+        if len(res) > 1 && strlen(a:brackets)
+                if strlen(a:brackets) != 2
+                        throw 'Eeek! brackets arg to NM_combine_tags must be 2 chars'
+                endif
+                call insert(res, a:brackets[0])
+                call add(res, a:brackets[1])
+        endif
+        return res
 endfunction
 
 " --- other helpers {{{1
 
+function! s:NM_get_search_words()
+        if !exists('b:nm_search_words')
+                throw 'Eeek! no b:nm_search_words'
+        endif
+        return b:nm_search_words
+endfunction
+
 function! s:NM_kill_this_buffer()
         if exists('b:nm_prev_bufnr')
-                setlocal bufhidden=delete
-                exec printf(":buffer %d", b:nm_prev_bufnr)
+                let prev_bufnr = b:nm_prev_bufnr
+                bdelete!
+                exec printf("buffer %d", prev_bufnr)
         else
                 echo "This is the last buffer; use :q<CR> to quit."
         endif
@@ -1136,12 +1322,11 @@ function! s:NM_search_expand(arg)
         let b:nm_prev_bufnr = prev_bufnr
 endfunction
 
-function! s:NM_add_remove_tags(filter, prefix, tags)
+function! s:NM_tag(filter, tags)
         let filter = len(a:filter) ? a:filter : [<SID>NM_search_thread_id()]
         if !len(filter)
-                echoe 'Eeek! I couldn''t find the thead id!'
+                throw 'Eeek! I couldn''t find the thread id!'
         endif
-        call map(a:tags, 'a:prefix . v:val')
         let args = ['tag']
         call extend(args, a:tags)
         call add(args, '--')
@@ -1150,20 +1335,6 @@ function! s:NM_add_remove_tags(filter, prefix, tags)
         call <SID>NM_run(args)
 endfunction
 
-function! s:NM_add_remove_tags_on_screen(online, prefix, tags)
-        setlocal modifiable
-        if a:prefix == '-'
-                for tagname in a:tags
-                        exec printf('silent! %ss/(\([^)]*\)\<%s\>\([^)]*\))$/(\1\2)/', string(a:online), tagname)
-                endfor
-        else
-                for tagname in a:tags
-                        exec printf('silent! %ss/(\([^)]*\)\([^)]*\))$/(\1 %s)/', string(a:online), tagname)
-                endfor
-        endif
-        setlocal nomodifiable
-endfunction
-
 " --- process and set the defaults {{{1
 
 function! NM_set_defaults(force)
@@ -1214,7 +1385,7 @@ function! s:NM_set_map(type, maps)
                 exec printf('%snoremap <buffer> %s %s', a:type, key, code)
         endfor
         " --- this is a hack for development :)
-        nnoremap ,nmr :source ~/.vim/plugin/notmuch.vim<CR>:call NotMuch('')<CR>
+        nnoremap ,nmr :runtime! plugin/notmuch.vim<CR>
 endfunction
 
 " --- command handler {{{1