9e5ee39a9fa1daaa817b52bcfd71ad04bcca32f4
[notmuch] / vim / plugin / notmuch.vim
1 " notmuch.vim plugin --- run notmuch within vim
2 "
3 " Copyright © Carl Worth
4 "
5 " This file is part of Notmuch.
6 "
7 " Notmuch is free software: you can redistribute it and/or modify it
8 " under the terms of the GNU General Public License as published by
9 " the Free Software Foundation, either version 3 of the License, or
10 " (at your option) any later version.
11 "
12 " Notmuch is distributed in the hope that it will be useful, but
13 " WITHOUT ANY WARRANTY; without even the implied warranty of
14 " MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 " General Public License for more details.
16 "
17 " You should have received a copy of the GNU General Public License
18 " along with Notmuch.  If not, see <http://www.gnu.org/licenses/>.
19 "
20 " Authors: Bart Trojanowski <bart@jukie.net>
21
22 " --- configuration defaults {{{1
23
24 let s:notmuch_defaults = {
25         \ 'g:notmuch_cmd':                           'notmuch'                    ,
26         \
27         \ 'g:notmuch_search_newest_first':           1                            ,
28         \ 'g:notmuch_search_from_column_width':      20                           ,
29         \
30         \ 'g:notmuch_show_fold_signatures':          1                            ,
31         \ 'g:notmuch_show_fold_citations':           1                            ,
32         \ 'g:notmuch_show_fold_bodies':              0                            ,
33         \ 'g:notmuch_show_fold_headers':             1                            ,
34         \
35         \ 'g:notmuch_show_message_begin_regexp':     '^\fmessage{'                ,
36         \ 'g:notmuch_show_message_end_regexp':       '^\fmessage}'                ,
37         \ 'g:notmuch_show_header_begin_regexp':      '^\fheader{'                 ,
38         \ 'g:notmuch_show_header_end_regexp':        '^\fheader}'                 ,
39         \ 'g:notmuch_show_body_begin_regexp':        '^\fbody{'                   ,
40         \ 'g:notmuch_show_body_end_regexp':          '^\fbody}'                   ,
41         \ 'g:notmuch_show_attachment_begin_regexp':  '^\fattachment{'             ,
42         \ 'g:notmuch_show_attachment_end_regexp':    '^\fattachment}'             ,
43         \ 'g:notmuch_show_part_begin_regexp':        '^\fpart{'                   ,
44         \ 'g:notmuch_show_part_end_regexp':          '^\fpart}'                   ,
45         \ 'g:notmuch_show_marker_regexp':            '^\f\\(message\\|header\\|body\\|attachment\\|part\\)[{}].*$',
46         \
47         \ 'g:notmuch_show_message_parse_regexp':     '\(id:[^ ]*\) depth:\([0-9]*\) filename:\(.*\)$',
48         \ 'g:notmuch_show_tags_regexp':              '(\([^)]*\))$'               ,
49         \
50         \ 'g:notmuch_show_signature_regexp':         '^\(-- \?\|_\+\)$'           ,
51         \ 'g:notmuch_show_signature_lines_max':      12                           ,
52         \
53         \ 'g:notmuch_show_citation_regexp':          '^\s*>'                      ,
54         \ }
55
56 " defaults for g:notmuch_initial_search_words
57 " override with: let g:notmuch_initial_search_words = [ ... ]
58 let s:notmuch_initial_search_words_defaults = [
59         \ 'tag:inbox and tag:unread',
60         \ ]
61
62 " defaults for g:notmuch_show_headers
63 " override with: let g:notmuch_show_headers = [ ... ]
64 let s:notmuch_show_headers_defaults = [
65         \ 'Subject',
66         \ 'To',
67         \ 'Cc',
68         \ 'Bcc',
69         \ 'Date',
70         \ ]
71
72 " --- keyboard mapping definitions {{{1
73
74 " --- --- bindings for search screen {{{2
75 let g:notmuch_search_maps = {
76         \ '<Enter>':    ':call <SID>NM_search_show_thread()<CR>',
77         \ 'a':          ':call <SID>NM_search_archive_thread()<CR>',
78         \ 'f':          ':call <SID>NM_search_filter()<CR>',
79         \ 'm':          ':call <SID>NM_new_mail()<CR>',
80         \ 'o':          ':call <SID>NM_search_toggle_order()<CR>',
81         \ 'r':          ':call <SID>NM_search_reply_to_thread()<CR>',
82         \ 's':          ':call <SID>NM_search_prompt()<CR>',
83         \ 'S':          ':call <SID>NM_search_edit()<CR>',
84         \ 't':          ':call <SID>NM_search_filter_by_tag()<CR>',
85         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
86         \ '+':          ':call <SID>NM_search_add_tags([])<CR>',
87         \ '-':          ':call <SID>NM_search_remove_tags([])<CR>',
88         \ '=':          ':call <SID>NM_search_refresh_view()<CR>',
89         \ }
90
91 " --- --- bindings for show screen {{{2
92 let g:notmuch_show_maps = {
93         \ '<C-P>':      ':call <SID>NM_show_prev()<CR>',
94         \ '<C-N>':      ':call <SID>NM_show_next()<CR>',
95         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
96         \
97         \ 'b':          ':call <SID>NM_show_fold_toggle(''b'', ''bdy'', !g:notmuch_show_fold_bodies)<CR>',
98         \ 'c':          ':call <SID>NM_show_fold_toggle(''c'', ''cit'', !g:notmuch_show_fold_citations)<CR>',
99         \ 'h':          ':call <SID>NM_show_fold_toggle(''h'', ''hdr'', !g:notmuch_show_fold_headers)<CR>',
100         \ 's':          ':call <SID>NM_show_fold_toggle(''s'', ''sig'', !g:notmuch_show_fold_signatures)<CR>',
101         \
102         \ 'a':          ':call <SID>NM_show_archive_thread()<CR>',
103         \ 'A':          ':call <SID>NM_show_mark_read_then_archive_thread()<CR>',
104         \ 'N':          ':call <SID>NM_show_mark_read_then_next_open_message()<CR>',
105         \ 'v':          ':call <SID>NM_show_view_all_mime_parts()<CR>',
106         \ '+':          ':call <SID>NM_show_add_tag()<CR>',
107         \ '-':          ':call <SID>NM_show_remove_tag()<CR>',
108         \ '<Space>':    ':call <SID>NM_show_advance_marking_read_and_archiving()<CR>',
109         \ '\|':         ':call <SID>NM_show_pipe_message()<CR>',
110         \
111         \ 'r':          ':call <SID>NM_show_reply()<CR>',
112         \ 'm':          ':call <SID>NM_new_mail()<CR>',
113         \ }
114
115
116 " --- implement search screen {{{1
117
118 function! s:NM_cmd_search(words)
119         let cmd = ['search']
120         if g:notmuch_search_newest_first
121                 let cmd = cmd + ['--sort=newest-first']
122         else
123                 let cmd = cmd + ['--sort=oldest-first']
124         endif
125         let data = s:NM_run(cmd + a:words)
126         "let data = substitute(data, '27/27', '25/27', '')
127         "let data = substitute(data, '\[4/4\]', '[0/4]', '')
128         let lines = split(data, "\n")
129         let disp = copy(lines)
130         "call map(disp, 'substitute(v:val, "^thread:\\S* ", "", "")' )
131         call map(disp, 's:NM_cmd_search_fmtline(v:val)')
132
133         call <SID>NM_newBuffer('search', join(disp, "\n"))
134         let b:nm_raw_lines = lines
135         let b:nm_search_words = a:words
136
137         call <SID>NM_cmd_search_mksyntax()
138         call <SID>NM_set_map(g:notmuch_search_maps)
139         setlocal cursorline
140         setlocal nowrap
141 endfunction
142 function! s:NM_cmd_search_fmtline(line)
143         let m = matchlist(a:line, '^\(thread:\S\+\)\s\([^]]\+\]\) \([^;]\+\); \(.*\) (\([^(]*\))$')
144         if !len(m)
145                 return 'ERROR PARSING: ' . a:line
146         endif
147         let max = g:notmuch_search_from_column_width
148         let from = m[3]
149         if strlen(from) >= max
150                 let from = m[3][0:max-4] . '...'
151         endif
152         return printf('%s %-20s | %s (%s)', m[2], from, m[4], m[5])
153 endfunction
154 function! s:NM_cmd_search_mksyntax()
155         syntax clear nmSearchFrom
156         "syntax region nmSearchFrom start='\]\@<=' end='.'me=e+5,he=e+5,re=e+5 oneline contained
157         "syntax match nmSearchFrom /\]\@<=.\{10\}/ oneline contained
158         exec printf('syntax match nmSearchFrom /\(\] \)\@<=.\{%d\}/ oneline contained', g:notmuch_search_from_column_width)
159         "exec printf('syntax region nmSearchFrom start=''\%%%dv'' end=''\%%%dv'' oneline contained', 20, 30)
160 endfunction
161
162 " --- --- search screen action functions {{{2
163
164 function! s:NM_search_show_thread()
165         let id = <SID>NM_search_find_thread_id()
166         if id != ''
167                 call <SID>NM_cmd_show([id])
168         endif
169 endfunction
170
171 function! s:NM_search_prompt()
172         " TODO: input() can support completion
173         let text = input('NotMuch Search: ')
174         if strlen(text)
175                 let tags = split(text)
176         else
177                 let tags = s:notmuch_initial_search_words_defaults
178         endif
179         setlocal bufhidden=delete
180         call <SID>NM_cmd_search(tags)
181 endfunction
182
183 function! s:NM_search_edit()
184         " TODO: input() can support completion
185         let text = input('NotMuch Search: ', join(b:nm_search_words, ' '))
186         if strlen(text)
187                 call <SID>NM_cmd_search(split(text))
188         endif
189 endfunction
190
191 function! s:NM_search_archive_thread()
192         call <SID>NM_add_remove_tags('-', ['inbox'])
193         " TODO: this could be made better and more generic
194         setlocal modifiable
195         s/(\([^)]*\)\<inbox\>\([^)]*\))$/(\1\2)/
196         setlocal nomodifiable
197         norm j
198 endfunction
199
200 function! s:NM_search_filter()
201         call <SID>NM_search_filter_helper('Filter: ', '')
202 endfunction
203
204 function! s:NM_search_filter_by_tag()
205         call <SID>NM_search_filter_helper('Filter Tag(s): ', 'tag:')
206 endfunction
207
208 function! s:NM_search_filter_helper(prompt, prefix)
209         " TODO: input() can support completion
210         let text = input(a:prompt)
211         if !strlen(text)
212                 return
213         endif
214
215         let tags = split(text)
216         map(tags, 'and a:prefix . v:val')
217         let tags = b:nm_search_words + tags
218         echo tags
219
220         let prev_bufnr = bufnr('%')
221         setlocal bufhidden=hide
222         call <SID>NM_cmd_search(tags)
223         setlocal bufhidden=delete
224         let b:nm_prev_bufnr = prev_bufnr
225 endfunction
226
227 function! s:NM_search_toggle_order()
228         let g:notmuch_search_newest_first = !g:notmuch_search_newest_first
229         " FIXME: maybe this would be better done w/o reading re-reading the lines
230         "         reversing the b:nm_raw_lines and the buffer lines would be better
231         call <SID>NM_search_refresh_view()
232 endfunction
233
234 function! s:NM_search_reply_to_thread()
235         echo 'not implemented'
236 endfunction
237
238 function! s:NM_search_add_tags(tags)
239         call <SID>NM_search_add_remove_tags('Add Tag(s): ', '+', a:tags)
240 endfunction
241
242 function! s:NM_search_remove_tags(tags)
243         call <SID>NM_search_add_remove_tags('Remove Tag(s): ', '-', a:tags)
244 endfunction
245
246 function! s:NM_search_refresh_view()
247         let lno = line('.')
248         setlocal bufhidden=delete
249         call <SID>NM_cmd_search(b:nm_search_words)
250         " FIXME: should find the line of the thread we were on if possible
251         exec printf('norm %dG', lno)
252 endfunction
253
254 " --- --- search screen helper functions {{{2
255
256 function! s:NM_search_find_thread_id()
257         if !exists('b:nm_raw_lines')
258                 echoe 'no b:nm_raw_lines'
259                 return ''
260         else
261                 let line = line('.')
262                 let info = b:nm_raw_lines[line-1]
263                 let what = split(info, '\s\+')[0]
264                 return what
265         endif
266 endfunction
267
268 function! s:NM_search_add_remove_tags(prompt, prefix, intags)
269         if type(a:intags) != type([]) || len(a:intags) == 0
270                 " TODO: input() can support completion
271                 let text = input(a:prompt)
272                 if !strlen(text)
273                         return
274                 endif
275                 call <SID>NM_add_remove_tags(a:prefix, split(text, ' '))
276         else
277                 call <SID>NM_add_remove_tags(a:prefix, a:intags)
278         endif
279         call <SID>NM_search_refresh_view()
280 endfunction
281
282 function! s:NM_add_remove_tags(prefix, tags)
283         let id = <SID>NM_search_find_thread_id()
284         if id == ''
285                 echoe 'Eeek! I couldn''t find the thead id!'
286         endif
287         call map(a:tags, 'a:prefix . v:val')
288         " TODO: handle errors
289         call <SID>NM_run(['tag'] + a:tags + ['--', id])
290 endfunction
291
292 " --- implement show screen {{{1
293
294 function! s:NM_cmd_show(words)
295         let prev_bufnr = bufnr('%')
296         let data = s:NM_run(['show'] + a:words)
297         let lines = split(data, "\n")
298
299         let info = s:NM_cmd_show_parse(lines)
300
301         setlocal bufhidden=hide
302         call <SID>NM_newBuffer('show', join(info['disp'], "\n"))
303         setlocal bufhidden=delete
304         let b:nm_raw_info = info
305         let b:nm_prev_bufnr = prev_bufnr
306
307         call <SID>NM_cmd_show_mkfolds()
308         call <SID>NM_cmd_show_mksyntax()
309         call <SID>NM_set_map(g:notmuch_show_maps)
310         setlocal foldtext=NM_cmd_show_foldtext()
311         setlocal fillchars=
312         setlocal foldcolumn=6
313
314 endfunction
315
316 function! s:NM_show_prev()
317         echoe "not implemented"
318 endfunction
319
320 function! s:NM_show_next()
321         let info = b:nm_raw_info
322         let lnum = line('.')
323         let cnt = 0
324         for msg in info['msgs']
325                 let cnt = cnt + 1
326                 if lnum >= msg['start']
327                         continue
328                 endif
329
330                 exec printf('norm %dG', msg['start'])
331                 norm zz
332                 return
333         endfor
334         norm qj
335         call <SID>NM_search_show_thread()
336 endfunction
337
338 function! s:NM_show_archive_thread()
339         echo 'not implemented'
340 endfunction
341
342 function! s:NM_show_mark_read_then_archive_thread()
343         echo 'not implemented'
344 endfunction
345
346 function! s:NM_show_next_message()
347         echo 'not implemented'
348 endfunction
349
350 function! s:NM_show_mark_read_then_next_open_message()
351         echo 'not implemented'
352 endfunction
353
354 function! s:NM_show_previous_message()
355         echo 'not implemented'
356 endfunction
357
358 function! s:NM_show_reply()
359         echo 'not implemented'
360 endfunction
361
362 function! s:NM_show_view_all_mime_parts()
363         echo 'not implemented'
364 endfunction
365
366 function! s:NM_show_view_raw_message()
367         echo 'not implemented'
368 endfunction
369
370 function! s:NM_show_add_tag()
371         echo 'not implemented'
372 endfunction
373
374 function! s:NM_show_remove_tag()
375         echo 'not implemented'
376 endfunction
377
378 function! s:NM_show_advance_marking_read_and_archiving()
379         echo 'not implemented'
380 endfunction
381
382 function! s:NM_show_pipe_message()
383         echo 'not implemented'
384 endfunction
385
386 " --- --- search screen helper functions {{{2
387
388 function! s:NM_show_fold_toggle(key, type, fold)
389         let info = b:nm_raw_info
390         let act = 'open'
391         if a:fold
392                 let act = 'close'
393         endif
394         for fld in info['folds']
395                 if fld[0] == a:type
396                         exec printf('%dfold%s', fld[1], act)
397                 endif
398         endfor
399         exec printf('nnoremap <buffer> %s :call <SID>NM_show_fold_toggle(''%s'', ''%s'', %d)<CR>', a:key, a:key, a:type, !a:fold)
400 endfunction
401
402
403 " s:NM_cmd_show_parse returns the following dictionary:
404 "    'disp':     lines to display
405 "    'msgs':     message info dicts { start, end, id, depth, filename, descr, header }
406 "    'folds':    fold info arrays [ type, start, end ]
407 "    'foldtext': fold text indexed by start line
408 function! s:NM_cmd_show_parse(inlines)
409         let info = { 'disp': [],       
410                    \ 'msgs': [],       
411                    \ 'folds': [],      
412                    \ 'foldtext': {} }  
413         let msg = {}
414         let hdr = {}
415
416         let in_message = 0
417         let in_header = 0
418         let in_body = 0
419         let in_part = ''
420
421         let body_start = -1
422         let part_start = -1
423
424         let mode_type = ''
425         let mode_start = -1
426
427         let inlnum = 0
428         for line in a:inlines
429                 let inlnum = inlnum + 1
430                 let foldinfo = []
431
432                 if strlen(in_part)
433                         let part_end = 0
434
435                         if match(line, g:notmuch_show_part_end_regexp) != -1
436                                 let part_end = len(info['disp'])
437                         else
438                                 call add(info['disp'], line)
439                         endif
440
441                         if in_part == 'text/plain'
442                                 if !part_end && mode_type == ''
443                                         if match(line, g:notmuch_show_signature_regexp) != -1
444                                                 let mode_type = 'sig'
445                                                 let mode_start = len(info['disp'])
446                                         elseif match(line, g:notmuch_show_citation_regexp) != -1
447                                                 let mode_type = 'cit'
448                                                 let mode_start = len(info['disp'])
449                                         endif
450                                 elseif mode_type == 'cit'
451                                         if part_end || match(line, g:notmuch_show_citation_regexp) == -1
452                                                 let outlnum = len(info['disp'])
453                                                 let foldinfo = [ mode_type, mode_start, outlnum-1,
454                                                                \ printf('[ %d-line citation.  Press "c" to show. ]', outlnum - mode_start) ]
455                                                 let mode_type = ''
456                                         endif
457                                 elseif mode_type == 'sig'
458                                         let outlnum = len(info['disp'])
459                                         if (outlnum - mode_start) > g:notmuch_show_signature_lines_max
460                                                 let mode_type = ''
461                                         elseif part_end
462                                                 let foldinfo = [ mode_type, mode_start, outlnum,
463                                                                \ printf('[ %d-line signature.  Press "s" to show. ]', outlnum - mode_start) ]
464                                                 let mode_type = ''
465                                         endif
466                                 endif
467                         endif
468
469                         if part_end
470                                 " FIXME: this is a hack for handling two folds being added for one line
471                                 "         we should handle addinga fold in a function
472                                 if len(foldinfo)
473                                         call add(info['folds'], foldinfo[0:2])
474                                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
475                                 endif
476
477                                 let foldinfo = [ 'text', part_start, part_end,
478                                                \ printf('[ %d-line %s.  Press "p" to show. ]', part_end - part_start, in_part) ]
479                                 let in_part = ''
480                                 call add(info['disp'], '')
481                         endif
482
483                 elseif in_body
484                         if !has_key(msg,'body_start')
485                                 let msg['body_start'] = len(info['disp']) + 1
486                         endif
487                         if match(line, g:notmuch_show_body_end_regexp) != -1
488                                 let body_end = len(info['disp'])
489                                 let foldinfo = [ 'bdy', body_start, body_end,
490                                                \ printf('[ BODY %d - %d lines ]', len(info['msgs']), body_end - body_start) ]
491
492                                 let in_body = 0
493
494                         elseif match(line, g:notmuch_show_part_begin_regexp) != -1
495                                 let m = matchlist(line, 'ID: \(\d\+\), Content-type: \(\S\+\)')
496                                 let in_part = 'unknown'
497                                 if len(m)
498                                         let in_part = m[2]
499                                 endif
500                                 call add(info['disp'],
501                                          \ printf('--- %s ---', in_part))
502                                 let part_start = len(info['disp']) + 1
503                         endif
504
505                 elseif in_header
506                         if in_header == 1
507                                 let msg['descr'] = line
508                                 call add(info['disp'], line)
509                                 let in_header = 2
510                                 let msg['hdr_start'] = len(info['disp']) + 1
511
512                         else
513                                 if match(line, g:notmuch_show_header_end_regexp) != -1
514                                         let hdr_start = msg['hdr_start']+1
515                                         let hdr_end = len(info['disp'])
516                                         let foldinfo = [ 'hdr', hdr_start, hdr_end,
517                                                \ printf('[ %d-line headers.  Press "h" to show. ]', hdr_end - hdr_start) ]
518                                         let msg['header'] = hdr
519                                         let in_header = 0
520                                         let hdr = {}
521                                 else
522                                         let m = matchlist(line, '^\(\w\+\):\s*\(.*\)$')
523                                         if len(m)
524                                                 let hdr[m[1]] = m[2]
525                                                 if match(g:notmuch_show_headers, m[1]) != -1
526                                                         call add(info['disp'], line)
527                                                 endif
528                                         endif
529                                 endif
530                         endif
531
532                 elseif in_message
533                         if match(line, g:notmuch_show_message_end_regexp) != -1
534                                 let msg['end'] = len(info['disp'])
535                                 call add(info['disp'], '')
536
537                                 let foldinfo = [ 'msg', msg['start'], msg['end'],
538                                                \ printf('[ MSG %d - %s ]', len(info['msgs']), msg['descr']) ]
539
540                                 call add(info['msgs'], msg)
541                                 let msg = {}
542                                 let in_message = 0
543                                 let in_header = 0
544                                 let in_body = 0
545                                 let in_part = ''
546
547                         elseif match(line, g:notmuch_show_header_begin_regexp) != -1
548                                 let in_header = 1
549                                 continue
550
551                         elseif match(line, g:notmuch_show_body_begin_regexp) != -1
552                                 let body_start = len(info['disp']) + 1
553                                 let in_body = 1
554                                 continue
555                         endif
556
557                 else
558                         if match(line, g:notmuch_show_message_begin_regexp) != -1
559                                 let msg['start'] = len(info['disp']) + 1
560
561                                 let m = matchlist(line, g:notmuch_show_message_parse_regexp)
562                                 if len(m)
563                                         let msg['id'] = m[1]
564                                         let msg['depth'] = m[2]
565                                         let msg['filename'] = m[3]
566                                 endif
567
568                                 let in_message = 1
569                         endif
570                 endif
571
572                 if len(foldinfo)
573                         call add(info['folds'], foldinfo[0:2])
574                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
575                 endif
576         endfor
577         return info
578 endfunction
579
580 function! s:NM_cmd_show_mkfolds()
581         let info = b:nm_raw_info
582
583         for afold in info['folds']
584                 exec printf('%d,%dfold', afold[1], afold[2])
585                 if (afold[0] == 'sig' && g:notmuch_show_fold_signatures)
586                  \ || (afold[0] == 'cit' && g:notmuch_show_fold_citations)
587                  \ || (afold[0] == 'bdy' && g:notmuch_show_fold_bodies)
588                  \ || (afold[0] == 'hdr' && g:notmuch_show_fold_headers)
589                         exec printf('%dfoldclose', afold[1])
590                 else
591                         exec printf('%dfoldopen', afold[1])
592                 endif
593         endfor
594 endfunction
595
596 function! s:NM_cmd_show_mksyntax()
597         let info = b:nm_raw_info
598         let cnt = 0
599         for msg in info['msgs']
600                 let cnt = cnt + 1
601                 let start = msg['start']
602                 let hdr_start = msg['hdr_start']
603                 let body_start = msg['body_start']
604                 let end = msg['end']
605                 exec printf('syntax region nmShowMsg%dDesc start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgDesc', cnt, start, start+1)
606                 exec printf('syntax region nmShowMsg%dHead start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgHead', cnt, hdr_start, body_start)
607                 exec printf('syntax region nmShowMsg%dBody start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgBody', cnt, body_start, end)
608         endfor
609 endfunction
610
611 function! NM_cmd_show_foldtext()
612         let foldtext = b:nm_raw_info['foldtext']
613         return foldtext[v:foldstart]
614 endfunction
615
616
617 " --- notmuch helper functions {{{1
618
619 function! s:NM_newBuffer(ft, content)
620         enew
621         setlocal buftype=nofile readonly modifiable
622         silent put=a:content
623         keepjumps 0d
624         setlocal nomodifiable
625         execute printf('set filetype=notmuch-%s', a:ft)
626         execute printf('set syntax=notmuch-%s', a:ft)
627 endfunction
628
629 function! s:NM_run(args)
630         let cmd = g:notmuch_cmd . ' ' . join(a:args) . '< /dev/null'
631         let out = system(cmd)
632         if v:shell_error
633                 echohl Error
634                 echo substitute(out, '\n*$', '', '')
635                 echohl None
636                 return ''
637         else
638                 return out
639         endif
640 endfunction
641
642 " --- external mail handling helpers {{{1
643
644 function! s:NM_new_mail()
645         echo 'not implemented'
646 endfunction
647
648 " --- other helpers {{{1
649
650 function! s:NM_kill_this_buffer()
651         if exists('b:nm_prev_bufnr')
652                 setlocal bufhidden=delete
653                 exec printf(":buffer %d", b:nm_prev_bufnr)
654         else
655                 echo "Nothing to kill."
656         endif
657 endfunction
658
659 " --- process and set the defaults {{{1
660
661 function! NM_set_defaults(force)
662         for [key, dflt] in items(s:notmuch_defaults)
663                 let cmd = ''
664                 if !a:force && exists(key) && type(dflt) == type(eval(key))
665                         continue
666                 elseif type(dflt) == type(0)
667                         let cmd = printf('let %s = %d', key, dflt)
668                 elseif type(dflt) == type('')
669                         let cmd = printf('let %s = ''%s''', key, dflt)
670                 "elseif type(dflt) == type([])
671                 "        let cmd = printf('let %s = %s', key, string(dflt))
672                 else
673                         echoe printf('E: Unknown type in NM_set_defaults(%d) using [%s,%s]',
674                                                 \ a:force, key, string(dflt))
675                         continue
676                 endif
677                 exec cmd
678         endfor
679 endfunction
680 call NM_set_defaults(0)
681
682 " for some reason NM_set_defaults() didn't work for arrays...
683 if !exists('g:notmuch_show_headers')
684         let g:notmuch_show_headers = s:notmuch_show_headers_defaults
685 endif
686 if !exists('g:notmuch_initial_search_words')
687         let g:notmuch_initial_search_words = s:notmuch_initial_search_words_defaults
688 endif
689
690
691 " --- assign keymaps {{{1
692
693 function! s:NM_set_map(maps)
694         for [key, code] in items(a:maps)
695                 exec printf('nnoremap <buffer> %s %s', key, code)
696         endfor
697 endfunction
698
699 " --- command handler {{{1
700
701 function! NotMuch(args)
702         if !strlen(a:args)
703                 if exists('b:nm_search_words')
704                         let words = b:nm_search_words
705                 else
706                         let words = g:notmuch_initial_search_words
707                 endif
708                 call <SID>NM_cmd_search(words)
709                 return
710         endif
711
712         echo "blarg!"
713
714         let words = split(a:args)
715         " TODO: handle commands passed as arguments
716 endfunction
717 function! CompleteNotMuch(arg_lead, cmd_line, cursor_pos)
718         return []
719 endfunction
720
721
722 " --- glue {{{1
723
724 command! -nargs=* -complete=customlist,CompleteNotMuch NotMuch call NotMuch(<q-args>)
725 cabbrev  notmuch <c-r>=(getcmdtype()==':' && getcmdpos()==1 ? 'NotMuch' : 'notmuch')<CR>
726
727 " --- hacks, only for development :) {{{1
728
729 nnoremap ,nmr :source ~/.vim/plugin/notmuch.vim<CR>:call NotMuch('')<CR>
730
731 " vim: set ft=vim ts=8 sw=8 et foldmethod=marker :