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   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(1)<CR>',
  94         \ '<C-N>':      ':call <SID>NM_show_next(1)<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(can_change_thread)
 317         let info = b:nm_raw_info
 318         let lnum = line('.')
 319         for msg in reverse(copy(info['msgs']))
 320                 if lnum <= msg['start']
 321                         continue
 322                 endif
 323
 324                 exec printf('norm %dG', msg['start'])
 325                 " TODO: try to fit the message on screen
 326                 norm zz
 327                 return
 328         endfor
 329         if !a:can_change_thread
 330                 return
 331         endif
 332         call <SID>NM_kill_this_buffer()
 333         if line('.') != line('0')
 334                 norm k
 335                 call <SID>NM_search_show_thread()
 336                 norm G
 337                 call <SID>NM_show_prev(0)
 338         else
 339                 echo 'No more messages.'
 340         endif
 341 endfunction
 342
 343 function! s:NM_show_next(can_change_thread)
 344         let info = b:nm_raw_info
 345         let lnum = line('.')
 346         for msg in info['msgs']
 347                 if lnum >= msg['start']
 348                         continue
 349                 endif
 350
 351                 exec printf('norm %dG', msg['start'])
 352                 " TODO: try to fit the message on screen
 353                 norm zz
 354                 return
 355         endfor
 356         if !a:can_change_thread
 357                 return
 358         endif
 359         call <SID>NM_kill_this_buffer()
 360         if line('.') != line('$')
 361                 norm j
 362                 call <SID>NM_search_show_thread()
 363         else
 364                 echo 'No more messages.'
 365         endif
 366 endfunction
 367
 368 function! s:NM_show_archive_thread()
 369         echo 'not implemented'
 370 endfunction
 371
 372 function! s:NM_show_mark_read_then_archive_thread()
 373         echo 'not implemented'
 374 endfunction
 375
 376 function! s:NM_show_next_message()
 377         echo 'not implemented'
 378 endfunction
 379
 380 function! s:NM_show_mark_read_then_next_open_message()
 381         echo 'not implemented'
 382 endfunction
 383
 384 function! s:NM_show_previous_message()
 385         echo 'not implemented'
 386 endfunction
 387
 388 function! s:NM_show_reply()
 389         echo 'not implemented'
 390 endfunction
 391
 392 function! s:NM_show_view_all_mime_parts()
 393         echo 'not implemented'
 394 endfunction
 395
 396 function! s:NM_show_view_raw_message()
 397         echo 'not implemented'
 398 endfunction
 399
 400 function! s:NM_show_add_tag()
 401         echo 'not implemented'
 402 endfunction
 403
 404 function! s:NM_show_remove_tag()
 405         echo 'not implemented'
 406 endfunction
 407
 408 function! s:NM_show_advance_marking_read_and_archiving()
 409         echo 'not implemented'
 410 endfunction
 411
 412 function! s:NM_show_pipe_message()
 413         echo 'not implemented'
 414 endfunction
 415
 416 " --- --- search screen helper functions {{{2
 417
 418 function! s:NM_show_fold_toggle(key, type, fold)
 419         let info = b:nm_raw_info
 420         let act = 'open'
 421         if a:fold
 422                 let act = 'close'
 423         endif
 424         for fld in info['folds']
 425                 if fld[0] == a:type
 426                         exec printf('%dfold%s', fld[1], act)
 427                 endif
 428         endfor
 429         exec printf('nnoremap <buffer> %s :call <SID>NM_show_fold_toggle(''%s'', ''%s'', %d)<CR>', a:key, a:key, a:type, !a:fold)
 430 endfunction
 431
 432
 433 " s:NM_cmd_show_parse returns the following dictionary:
 434 "    'disp':     lines to display
 435 "    'msgs':     message info dicts { start, end, id, depth, filename, descr, header }
 436 "    'folds':    fold info arrays [ type, start, end ]
 437 "    'foldtext': fold text indexed by start line
 438 function! s:NM_cmd_show_parse(inlines)
 439         let info = { 'disp': [],
 440                    \ 'msgs': [],
 441                    \ 'folds': [],
 442                    \ 'foldtext': {} }
 443         let msg = {}
 444         let hdr = {}
 445
 446         let in_message = 0
 447         let in_header = 0
 448         let in_body = 0
 449         let in_part = ''
 450
 451         let body_start = -1
 452         let part_start = -1
 453
 454         let mode_type = ''
 455         let mode_start = -1
 456
 457         let inlnum = 0
 458         for line in a:inlines
 459                 let inlnum = inlnum + 1
 460                 let foldinfo = []
 461
 462                 if strlen(in_part)
 463                         let part_end = 0
 464
 465                         if match(line, g:notmuch_show_part_end_regexp) != -1
 466                                 let part_end = len(info['disp'])
 467                         else
 468                                 call add(info['disp'], line)
 469                         endif
 470
 471                         if in_part == 'text/plain'
 472                                 if !part_end && mode_type == ''
 473                                         if match(line, g:notmuch_show_signature_regexp) != -1
 474                                                 let mode_type = 'sig'
 475                                                 let mode_start = len(info['disp'])
 476                                         elseif match(line, g:notmuch_show_citation_regexp) != -1
 477                                                 let mode_type = 'cit'
 478                                                 let mode_start = len(info['disp'])
 479                                         endif
 480                                 elseif mode_type == 'cit'
 481                                         if part_end || match(line, g:notmuch_show_citation_regexp) == -1
 482                                                 let outlnum = len(info['disp'])
 483                                                 let foldinfo = [ mode_type, mode_start, outlnum-1,
 484                                                                \ printf('[ %d-line citation.  Press "c" to show. ]', outlnum - mode_start) ]
 485                                                 let mode_type = ''
 486                                         endif
 487                                 elseif mode_type == 'sig'
 488                                         let outlnum = len(info['disp'])
 489                                         if (outlnum - mode_start) > g:notmuch_show_signature_lines_max
 490                                                 let mode_type = ''
 491                                         elseif part_end
 492                                                 let foldinfo = [ mode_type, mode_start, outlnum,
 493                                                                \ printf('[ %d-line signature.  Press "s" to show. ]', outlnum - mode_start) ]
 494                                                 let mode_type = ''
 495                                         endif
 496                                 endif
 497                         endif
 498
 499                         if part_end
 500                                 " FIXME: this is a hack for handling two folds being added for one line
 501                                 "         we should handle addinga fold in a function
 502                                 if len(foldinfo)
 503                                         call add(info['folds'], foldinfo[0:2])
 504                                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 505                                 endif
 506
 507                                 let foldinfo = [ 'text', part_start, part_end,
 508                                                \ printf('[ %d-line %s.  Press "p" to show. ]', part_end - part_start, in_part) ]
 509                                 let in_part = ''
 510                                 call add(info['disp'], '')
 511                         endif
 512
 513                 elseif in_body
 514                         if !has_key(msg,'body_start')
 515                                 let msg['body_start'] = len(info['disp']) + 1
 516                         endif
 517                         if match(line, g:notmuch_show_body_end_regexp) != -1
 518                                 let body_end = len(info['disp'])
 519                                 let foldinfo = [ 'bdy', body_start, body_end,
 520                                                \ printf('[ BODY %d - %d lines ]', len(info['msgs']), body_end - body_start) ]
 521
 522                                 let in_body = 0
 523
 524                         elseif match(line, g:notmuch_show_part_begin_regexp) != -1
 525                                 let m = matchlist(line, 'ID: \(\d\+\), Content-type: \(\S\+\)')
 526                                 let in_part = 'unknown'
 527                                 if len(m)
 528                                         let in_part = m[2]
 529                                 endif
 530                                 call add(info['disp'],
 531                                          \ printf('--- %s ---', in_part))
 532                                 let part_start = len(info['disp']) + 1
 533                         endif
 534
 535                 elseif in_header
 536                         if in_header == 1
 537                                 let msg['descr'] = line
 538                                 call add(info['disp'], line)
 539                                 let in_header = 2
 540                                 let msg['hdr_start'] = len(info['disp']) + 1
 541
 542                         else
 543                                 if match(line, g:notmuch_show_header_end_regexp) != -1
 544                                         let hdr_start = msg['hdr_start']+1
 545                                         let hdr_end = len(info['disp'])
 546                                         let foldinfo = [ 'hdr', hdr_start, hdr_end,
 547                                                \ printf('[ %d-line headers.  Press "h" to show. ]', hdr_end - hdr_start) ]
 548                                         let msg['header'] = hdr
 549                                         let in_header = 0
 550                                         let hdr = {}
 551                                 else
 552                                         let m = matchlist(line, '^\(\w\+\):\s*\(.*\)$')
 553                                         if len(m)
 554                                                 let hdr[m[1]] = m[2]
 555                                                 if match(g:notmuch_show_headers, m[1]) != -1
 556                                                         call add(info['disp'], line)
 557                                                 endif
 558                                         endif
 559                                 endif
 560                         endif
 561
 562                 elseif in_message
 563                         if match(line, g:notmuch_show_message_end_regexp) != -1
 564                                 let msg['end'] = len(info['disp'])
 565                                 call add(info['disp'], '')
 566
 567                                 let foldinfo = [ 'msg', msg['start'], msg['end'],
 568                                                \ printf('[ MSG %d - %s ]', len(info['msgs']), msg['descr']) ]
 569
 570                                 call add(info['msgs'], msg)
 571                                 let msg = {}
 572                                 let in_message = 0
 573                                 let in_header = 0
 574                                 let in_body = 0
 575                                 let in_part = ''
 576
 577                         elseif match(line, g:notmuch_show_header_begin_regexp) != -1
 578                                 let in_header = 1
 579                                 continue
 580
 581                         elseif match(line, g:notmuch_show_body_begin_regexp) != -1
 582                                 let body_start = len(info['disp']) + 1
 583                                 let in_body = 1
 584                                 continue
 585                         endif
 586
 587                 else
 588                         if match(line, g:notmuch_show_message_begin_regexp) != -1
 589                                 let msg['start'] = len(info['disp']) + 1
 590
 591                                 let m = matchlist(line, g:notmuch_show_message_parse_regexp)
 592                                 if len(m)
 593                                         let msg['id'] = m[1]
 594                                         let msg['depth'] = m[2]
 595                                         let msg['filename'] = m[3]
 596                                 endif
 597
 598                                 let in_message = 1
 599                         endif
 600                 endif
 601
 602                 if len(foldinfo)
 603                         call add(info['folds'], foldinfo[0:2])
 604                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 605                 endif
 606         endfor
 607         return info
 608 endfunction
 609
 610 function! s:NM_cmd_show_mkfolds()
 611         let info = b:nm_raw_info
 612
 613         for afold in info['folds']
 614                 exec printf('%d,%dfold', afold[1], afold[2])
 615                 if (afold[0] == 'sig' && g:notmuch_show_fold_signatures)
 616                  \ || (afold[0] == 'cit' && g:notmuch_show_fold_citations)
 617                  \ || (afold[0] == 'bdy' && g:notmuch_show_fold_bodies)
 618                  \ || (afold[0] == 'hdr' && g:notmuch_show_fold_headers)
 619                         exec printf('%dfoldclose', afold[1])
 620                 else
 621                         exec printf('%dfoldopen', afold[1])
 622                 endif
 623         endfor
 624 endfunction
 625
 626 function! s:NM_cmd_show_mksyntax()
 627         let info = b:nm_raw_info
 628         let cnt = 0
 629         for msg in info['msgs']
 630                 let cnt = cnt + 1
 631                 let start = msg['start']
 632                 let hdr_start = msg['hdr_start']
 633                 let body_start = msg['body_start']
 634                 let end = msg['end']
 635                 exec printf('syntax region nmShowMsg%dDesc start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgDesc', cnt, start, start+1)
 636                 exec printf('syntax region nmShowMsg%dHead start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgHead', cnt, hdr_start, body_start)
 637                 exec printf('syntax region nmShowMsg%dBody start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgBody', cnt, body_start, end)
 638         endfor
 639 endfunction
 640
 641 function! NM_cmd_show_foldtext()
 642         let foldtext = b:nm_raw_info['foldtext']
 643         return foldtext[v:foldstart]
 644 endfunction
 645
 646
 647 " --- notmuch helper functions {{{1
 648
 649 function! s:NM_newBuffer(ft, content)
 650         enew
 651         setlocal buftype=nofile readonly modifiable
 652         silent put=a:content
 653         keepjumps 0d
 654         setlocal nomodifiable
 655         execute printf('set filetype=notmuch-%s', a:ft)
 656         execute printf('set syntax=notmuch-%s', a:ft)
 657 endfunction
 658
 659 function! s:NM_run(args)
 660         let cmd = g:notmuch_cmd . ' ' . join(a:args) . '< /dev/null'
 661         let out = system(cmd)
 662         if v:shell_error
 663                 echohl Error
 664                 echo substitute(out, '\n*$', '', '')
 665                 echohl None
 666                 return ''
 667         else
 668                 return out
 669         endif
 670 endfunction
 671
 672 " --- external mail handling helpers {{{1
 673
 674 function! s:NM_new_mail()
 675         echo 'not implemented'
 676 endfunction
 677
 678 " --- other helpers {{{1
 679
 680 function! s:NM_kill_this_buffer()
 681         if exists('b:nm_prev_bufnr')
 682                 setlocal bufhidden=delete
 683                 exec printf(":buffer %d", b:nm_prev_bufnr)
 684         else
 685                 echo "Nothing to kill."
 686         endif
 687 endfunction
 688
 689 " --- process and set the defaults {{{1
 690
 691 function! NM_set_defaults(force)
 692         for [key, dflt] in items(s:notmuch_defaults)
 693                 let cmd = ''
 694                 if !a:force && exists(key) && type(dflt) == type(eval(key))
 695                         continue
 696                 elseif type(dflt) == type(0)
 697                         let cmd = printf('let %s = %d', key, dflt)
 698                 elseif type(dflt) == type('')
 699                         let cmd = printf('let %s = ''%s''', key, dflt)
 700                 "elseif type(dflt) == type([])
 701                 "        let cmd = printf('let %s = %s', key, string(dflt))
 702                 else
 703                         echoe printf('E: Unknown type in NM_set_defaults(%d) using [%s,%s]',
 704                                                 \ a:force, key, string(dflt))
 705                         continue
 706                 endif
 707                 exec cmd
 708         endfor
 709 endfunction
 710 call NM_set_defaults(0)
 711
 712 " for some reason NM_set_defaults() didn't work for arrays...
 713 if !exists('g:notmuch_show_headers')
 714         let g:notmuch_show_headers = s:notmuch_show_headers_defaults
 715 endif
 716 if !exists('g:notmuch_initial_search_words')
 717         let g:notmuch_initial_search_words = s:notmuch_initial_search_words_defaults
 718 endif
 719
 720
 721 " --- assign keymaps {{{1
 722
 723 function! s:NM_set_map(maps)
 724         for [key, code] in items(a:maps)
 725                 exec printf('nnoremap <buffer> %s %s', key, code)
 726         endfor
 727 endfunction
 728
 729 " --- command handler {{{1
 730
 731 function! NotMuch(args)
 732         if !strlen(a:args)
 733                 if exists('b:nm_search_words')
 734                         let words = b:nm_search_words
 735                 else
 736                         let words = g:notmuch_initial_search_words
 737                 endif
 738                 call <SID>NM_cmd_search(words)
 739                 return
 740         endif
 741
 742         echo "blarg!"
 743
 744         let words = split(a:args)
 745         " TODO: handle commands passed as arguments
 746 endfunction
 747 function! CompleteNotMuch(arg_lead, cmd_line, cursor_pos)
 748         return []
 749 endfunction
 750
 751
 752 " --- glue {{{1
 753
 754 command! -nargs=* -complete=customlist,CompleteNotMuch NotMuch call NotMuch(<q-args>)
 755 cabbrev  notmuch <c-r>=(getcmdtype()==':' && getcmdpos()==1 ? 'NotMuch' : 'notmuch')<CR>
 756
 757 " --- hacks, only for development :) {{{1
 758
 759 nnoremap ,nmr :source ~/.vim/plugin/notmuch.vim<CR>:call NotMuch('')<CR>
 760
 761 " vim: set ft=vim ts=8 sw=8 et foldmethod=marker :