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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 " defaults for g:notmuch_folders
  73 " override with: let g:notmuch_folders = [ ... ]
  74 let s:notmuch_folders_defaults = [
  75         \ [ 'new',    'tag:inbox and tag:unread' ],
  76         \ [ 'inbox',  'tag:inbox'                ],
  77         \ [ 'unread', 'tag:unread'               ],
  78         \ ]
  79
  80 " --- keyboard mapping definitions {{{1
  81
  82 " --- --- bindings for folders mode {{{2
  83
  84 let g:notmuch_folders_maps = {
  85         \ 's':          ':call <SID>NM_search_prompt()<CR>',
  86         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
  87         \ '=':          ':call <SID>NM_folders_refresh_view()<CR>',
  88         \ '<Enter>':    ':call <SID>NM_folders_show_search()<CR>',
  89         \ }
  90
  91 " --- --- bindings for search screen {{{2
  92 let g:notmuch_search_maps = {
  93         \ '<Enter>':    ':call <SID>NM_search_show_thread()<CR>',
  94         \ '<C-]>':      ':call <SID>NM_search_expand(''<cword>'')<CR>',
  95         \ 'a':          ':call <SID>NM_search_archive_thread()<CR>',
  96         \ 'f':          ':call <SID>NM_search_filter()<CR>',
  97         \ 'm':          ':call <SID>NM_new_mail()<CR>',
  98         \ 'o':          ':call <SID>NM_search_toggle_order()<CR>',
  99         \ 'r':          ':call <SID>NM_search_reply_to_thread()<CR>',
 100         \ 's':          ':call <SID>NM_search_prompt()<CR>',
 101         \ ',s':         ':call <SID>NM_search_edit()<CR>',
 102         \ 't':          ':call <SID>NM_search_filter_by_tag()<CR>',
 103         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
 104         \ '+':          ':call <SID>NM_search_add_tags([])<CR>',
 105         \ '-':          ':call <SID>NM_search_remove_tags([])<CR>',
 106         \ '=':          ':call <SID>NM_search_refresh_view()<CR>',
 107         \ '?':          ':echo <SID>NM_search_thread_id()<CR>',
 108         \ }
 109
 110 " --- --- bindings for show screen {{{2
 111 let g:notmuch_show_maps = {
 112         \ '<C-P>':      ':call <SID>NM_show_previous(1)<CR>',
 113         \ '<C-N>':      ':call <SID>NM_show_next(1)<CR>',
 114         \ '<C-]>':      ':call <SID>NM_search_expand(''<cword>'')<CR>',
 115         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
 116         \
 117         \ 'b':          ':call <SID>NM_show_fold_toggle(''b'', ''bdy'', !g:notmuch_show_fold_bodies)<CR>',
 118         \ 'c':          ':call <SID>NM_show_fold_toggle(''c'', ''cit'', !g:notmuch_show_fold_citations)<CR>',
 119         \ 'h':          ':call <SID>NM_show_fold_toggle(''h'', ''hdr'', !g:notmuch_show_fold_headers)<CR>',
 120         \ 's':          ':call <SID>NM_show_fold_toggle(''s'', ''sig'', !g:notmuch_show_fold_signatures)<CR>',
 121         \
 122         \ 'a':          ':call <SID>NM_show_archive_thread()<CR>',
 123         \ 'A':          ':call <SID>NM_show_mark_read_then_archive_thread()<CR>',
 124         \ 'N':          ':call <SID>NM_show_mark_read_then_next_open_message()<CR>',
 125         \ 'v':          ':call <SID>NM_show_view_all_mime_parts()<CR>',
 126         \ '+':          ':call <SID>NM_show_add_tag()<CR>',
 127         \ '-':          ':call <SID>NM_show_remove_tag()<CR>',
 128         \ '<Space>':    ':call <SID>NM_show_advance_marking_read_and_archiving()<CR>',
 129         \ '\|':         ':call <SID>NM_show_pipe_message()<CR>',
 130         \
 131         \ 'r':          ':call <SID>NM_show_reply()<CR>',
 132         \ 'm':          ':call <SID>NM_new_mail()<CR>',
 133         \ '?':          ':echo <SID>NM_show_message_id() . ''  @ '' . join(<SID>NM_show_search_words())<CR>',
 134         \ }
 135
 136
 137 " --- implement folders screen {{{1
 138
 139 function! s:NM_cmd_folders(words)
 140         if len(a:words)
 141                 echoe 'Not exapecting any arguments for folders command.'
 142         endif
 143         let cmd = ['count']
 144         let disp = []
 145         let searches = []
 146         for entry in g:notmuch_folders
 147                 let [ name, search ] = entry
 148                 let data = s:NM_run(cmd + [search])
 149                 let cnt = matchlist(data, '\(\d\+\)')[1]
 150                 call add(disp, printf('%9d %-20s (%s)', cnt, name, search))
 151                 call add(searches, search)
 152         endfor
 153
 154         call <SID>NM_newBuffer('folders', join(disp, "\n"))
 155         let b:nm_searches = searches
 156         let b:nm_timestamp = reltime()
 157
 158         call <SID>NM_cmd_folders_mksyntax()
 159         call <SID>NM_set_map(g:notmuch_folders_maps)
 160         setlocal cursorline
 161         setlocal nowrap
 162 endfunction
 163
 164 function! s:NM_cmd_folders_mksyntax()
 165 endfunction
 166
 167 " --- --- folders screen action functions {{{2
 168
 169 function! s:NM_folders_refresh_view()
 170         let lno = line('.')
 171         setlocal bufhidden=delete
 172         call s:NM_cmd_folders([])
 173         exec printf('norm %dG', lno)
 174 endfunction
 175
 176 function! s:NM_folders_show_search()
 177         let line = line('.')
 178         let search = b:nm_searches[line-1]
 179
 180         let prev_bufnr = bufnr('%')
 181         setlocal bufhidden=hide
 182         call <SID>NM_cmd_search([search])
 183         setlocal bufhidden=delete
 184         let b:nm_prev_bufnr = prev_bufnr
 185 endfunction
 186
 187
 188 " --- implement search screen {{{1
 189
 190 function! s:NM_cmd_search(words)
 191         let cmd = ['search']
 192         if g:notmuch_search_newest_first
 193                 let cmd = cmd + ['--sort=newest-first']
 194         else
 195                 let cmd = cmd + ['--sort=oldest-first']
 196         endif
 197         let data = s:NM_run(cmd + a:words)
 198         let lines = split(data, "\n")
 199         let disp = copy(lines)
 200         call map(disp, 's:NM_cmd_search_fmtline(v:val)')
 201
 202         call <SID>NM_newBuffer('search', join(disp, "\n"))
 203         let b:nm_raw_lines = lines
 204         let b:nm_search_words = a:words
 205
 206         call <SID>NM_cmd_search_mksyntax()
 207         call <SID>NM_set_map(g:notmuch_search_maps)
 208         setlocal cursorline
 209         setlocal nowrap
 210 endfunction
 211 function! s:NM_cmd_search_fmtline(line)
 212         let m = matchlist(a:line, '^\(thread:\S\+\)\s\([^]]\+\]\) \([^;]\+\); \(.*\) (\([^(]*\))$')
 213         if !len(m)
 214                 return 'ERROR PARSING: ' . a:line
 215         endif
 216         let max = g:notmuch_search_from_column_width
 217         let from = m[3]
 218         if strlen(from) >= max
 219                 let from = substitute(m[3][0:max-4], '[^A-Za-z1-9_]*$', '', '') . '...'
 220         endif
 221         return printf('%-20s %-20s | %s (%s)', m[2], from, m[4], m[5])
 222 endfunction
 223 function! s:NM_cmd_search_mksyntax()
 224         syntax clear nmSearchFrom
 225         exec printf('syntax match nmSearchFrom /\(\] \)\@<=.\{%d\}/ oneline contained', g:notmuch_search_from_column_width)
 226 endfunction
 227
 228 " --- --- search screen action functions {{{2
 229
 230 function! s:NM_search_show_thread()
 231         let id = <SID>NM_search_thread_id()
 232         if id != ''
 233                 let words = [id]
 234                 if exists('b:nm_search_words')
 235                         let words = ['('] + b:nm_search_words + [')', 'and', id]
 236                 endif
 237                 if len(words)
 238                         call <SID>NM_cmd_show(words)
 239                 endif
 240         endif
 241 endfunction
 242
 243 function! s:NM_search_prompt()
 244         " TODO: input() can support completion
 245         let text = input('NotMuch Search: ')
 246         if strlen(text)
 247                 let tags = split(text)
 248         else
 249                 let tags = s:notmuch_initial_search_words_defaults
 250         endif
 251         let prev_bufnr = bufnr('%')
 252         if b:nm_type == 'search'
 253                 " TODO: we intend to replace the current buffer,
 254                 "       ... maybe we could just clear it
 255                 let prev_bufnr = b:nm_prev_bufnr
 256                 setlocal bufhidden=delete
 257         else
 258                 setlocal bufhidden=hide
 259         endif
 260         call <SID>NM_cmd_search(tags)
 261         setlocal bufhidden=delete
 262         let b:nm_prev_bufnr = prev_bufnr
 263 endfunction
 264
 265 function! s:NM_search_edit()
 266         " TODO: input() can support completion
 267         let text = input('NotMuch Search: ', join(b:nm_search_words, ' '))
 268         if strlen(text)
 269                 call <SID>NM_cmd_search(split(text))
 270         endif
 271 endfunction
 272
 273 function! s:NM_search_archive_thread()
 274         call <SID>NM_add_remove_tags_on_screen('-', ['inbox'])
 275         call <SID>NM_add_remove_tags('-', ['inbox'])
 276         norm j
 277 endfunction
 278
 279 function! s:NM_search_filter()
 280         call <SID>NM_search_filter_helper('Filter: ', '', '')
 281 endfunction
 282
 283 function! s:NM_search_filter_by_tag()
 284         call <SID>NM_search_filter_helper('Filter Tag(s): ', 'tag:', 'and')
 285 endfunction
 286
 287 function! s:NM_search_filter_helper(prompt, prefix, joiner)
 288         " TODO: input() can support completion
 289         let text = input(a:prompt)
 290         if !strlen(text)
 291                 return
 292         endif
 293
 294         let tags = split(text)
 295         if strlen(a:prefix)
 296                 call map(tags, 'a:prefix . v:val')
 297         endif
 298         if strlen(a:joiner)
 299                 let idx = len(tags) - 1
 300                 while idx > 0
 301                         call insert(tags, a:joiner, idx)
 302                         let idx = idx - 1
 303                 endwhile
 304         endif
 305         let tags = b:nm_search_words + ['and', '('] + tags + [')']
 306
 307         let prev_bufnr = bufnr('%')
 308         setlocal bufhidden=hide
 309         call <SID>NM_cmd_search(tags)
 310         setlocal bufhidden=delete
 311         let b:nm_prev_bufnr = prev_bufnr
 312 endfunction
 313
 314 function! s:NM_search_toggle_order()
 315         let g:notmuch_search_newest_first = !g:notmuch_search_newest_first
 316         " FIXME: maybe this would be better done w/o reading re-reading the lines
 317         "         reversing the b:nm_raw_lines and the buffer lines would be better
 318         call <SID>NM_search_refresh_view()
 319 endfunction
 320
 321 function! s:NM_search_reply_to_thread()
 322         echo 'not implemented'
 323 endfunction
 324
 325 function! s:NM_search_add_tags(tags)
 326         call <SID>NM_search_add_remove_tags('Add Tag(s): ', '+', a:tags)
 327 endfunction
 328
 329 function! s:NM_search_remove_tags(tags)
 330         call <SID>NM_search_add_remove_tags('Remove Tag(s): ', '-', a:tags)
 331 endfunction
 332
 333 function! s:NM_search_refresh_view()
 334         let lno = line('.')
 335         let prev_bufnr = b:nm_prev_bufnr
 336         setlocal bufhidden=delete
 337         call <SID>NM_cmd_search(b:nm_search_words)
 338         let b:nm_prev_bufnr = prev_bufnr
 339         " FIXME: should find the line of the thread we were on if possible
 340         exec printf('norm %dG', lno)
 341 endfunction
 342
 343 " --- --- search screen helper functions {{{2
 344
 345 function! s:NM_search_thread_id()
 346         if !exists('b:nm_raw_lines')
 347                 echoe 'no b:nm_raw_lines'
 348                 return ''
 349         else
 350                 let line = line('.')
 351                 let info = b:nm_raw_lines[line-1]
 352                 let what = split(info, '\s\+')[0]
 353                 return what
 354         endif
 355 endfunction
 356
 357 function! s:NM_search_add_remove_tags(prompt, prefix, intags)
 358         if type(a:intags) != type([]) || len(a:intags) == 0
 359                 " TODO: input() can support completion
 360                 let text = input(a:prompt)
 361                 if !strlen(text)
 362                         return
 363                 endif
 364                 let tags = split(text, ' ')
 365         else
 366                 let tags = a:intags
 367         endif
 368         call <SID>NM_add_remove_tags(a:prefix, tags)
 369         call <SID>NM_add_remove_tags_on_screen(a:prefix, tags)
 370 endfunction
 371
 372 " --- implement show screen {{{1
 373
 374 function! s:NM_cmd_show(words)
 375         let prev_bufnr = bufnr('%')
 376         let data = s:NM_run(['show'] + a:words)
 377         let lines = split(data, "\n")
 378
 379         let info = s:NM_cmd_show_parse(lines)
 380
 381         setlocal bufhidden=hide
 382         call <SID>NM_newBuffer('show', join(info['disp'], "\n"))
 383         setlocal bufhidden=delete
 384         let b:nm_words = a:words
 385         let b:nm_raw_info = info
 386         let b:nm_prev_bufnr = prev_bufnr
 387
 388         call <SID>NM_cmd_show_mkfolds()
 389         call <SID>NM_cmd_show_mksyntax()
 390         call <SID>NM_set_map(g:notmuch_show_maps)
 391         setlocal foldtext=NM_cmd_show_foldtext()
 392         setlocal fillchars=
 393         setlocal foldcolumn=6
 394
 395 endfunction
 396
 397 function! s:NM_show_previous(can_change_thread)
 398         let info = b:nm_raw_info
 399         let lnum = line('.')
 400         for msg in reverse(copy(info['msgs']))
 401                 if lnum <= msg['start']
 402                         continue
 403                 endif
 404
 405                 exec printf('norm %dG', msg['start'])
 406                 " TODO: try to fit the message on screen
 407                 norm zz
 408                 return
 409         endfor
 410         if !a:can_change_thread
 411                 return
 412         endif
 413         call <SID>NM_kill_this_buffer()
 414         if line('.') != line('0')
 415                 norm k
 416                 call <SID>NM_search_show_thread()
 417                 norm G
 418                 call <SID>NM_show_previous(0)
 419         else
 420                 echo 'No more messages.'
 421         endif
 422 endfunction
 423
 424 function! s:NM_show_next(can_change_thread)
 425         let info = b:nm_raw_info
 426         let lnum = line('.')
 427         for msg in info['msgs']
 428                 if lnum >= msg['start']
 429                         continue
 430                 endif
 431
 432                 exec printf('norm %dG', msg['start'])
 433                 " TODO: try to fit the message on screen
 434                 norm zz
 435                 return
 436         endfor
 437         if !a:can_change_thread
 438                 return
 439         endif
 440         call <SID>NM_kill_this_buffer()
 441         if line('.') != line('$')
 442                 norm j
 443                 call <SID>NM_search_show_thread()
 444         else
 445                 echo 'No more messages.'
 446         endif
 447 endfunction
 448
 449 function! s:NM_show_archive_thread()
 450         echo 'not implemented'
 451 endfunction
 452
 453 function! s:NM_show_mark_read_then_archive_thread()
 454         echo 'not implemented'
 455 endfunction
 456
 457 function! s:NM_show_next_message()
 458         echo 'not implemented'
 459 endfunction
 460
 461 function! s:NM_show_mark_read_then_next_open_message()
 462         echo 'not implemented'
 463 endfunction
 464
 465 function! s:NM_show_previous_message()
 466         echo 'not implemented'
 467 endfunction
 468
 469 function! s:NM_show_reply()
 470         echo 'not implemented'
 471 endfunction
 472
 473 function! s:NM_show_view_all_mime_parts()
 474         echo 'not implemented'
 475 endfunction
 476
 477 function! s:NM_show_view_raw_message()
 478         echo 'not implemented'
 479 endfunction
 480
 481 function! s:NM_show_add_tag()
 482         echo 'not implemented'
 483 endfunction
 484
 485 function! s:NM_show_remove_tag()
 486         echo 'not implemented'
 487 endfunction
 488
 489 function! s:NM_show_advance_marking_read_and_archiving()
 490         echo 'not implemented'
 491 endfunction
 492
 493 function! s:NM_show_pipe_message()
 494         echo 'not implemented'
 495 endfunction
 496
 497 " --- --- show screen helper functions {{{2
 498
 499 function! s:NM_show_thread_id()
 500         if !exists('b:nm_words')
 501                 echoe 'no b:nm_words'
 502                 return ''
 503         endif
 504         return b:nm_words[0]
 505 endfunction
 506
 507 function! s:NM_show_message_id()
 508         if !exists('b:nm_raw_info')
 509                 echoe 'no b:nm_raw_info'
 510                 return ''
 511         endif
 512         let info = b:nm_raw_info
 513         let lnum = line('.')
 514         for msg in info['msgs']
 515                 if lnum > msg['end']
 516                         continue
 517                 endif
 518
 519                 return msg['id']
 520         endfor
 521         return ''
 522 endfunction
 523
 524 function! s:NM_show_search_words()
 525         if !exists('b:nm_words')
 526                 echoe 'no b:nm_words'
 527                 return []
 528         endif
 529         return b:nm_words
 530 endfunction
 531
 532 function! s:NM_show_fold_toggle(key, type, fold)
 533         let info = b:nm_raw_info
 534         let act = 'open'
 535         if a:fold
 536                 let act = 'close'
 537         endif
 538         for fld in info['folds']
 539                 if fld[0] == a:type
 540                         exec printf('%dfold%s', fld[1], act)
 541                 endif
 542         endfor
 543         exec printf('nnoremap <buffer> %s :call <SID>NM_show_fold_toggle(''%s'', ''%s'', %d)<CR>', a:key, a:key, a:type, !a:fold)
 544 endfunction
 545
 546
 547 " s:NM_cmd_show_parse returns the following dictionary:
 548 "    'disp':     lines to display
 549 "    'msgs':     message info dicts { start, end, id, depth, filename, descr, header }
 550 "    'folds':    fold info arrays [ type, start, end ]
 551 "    'foldtext': fold text indexed by start line
 552 function! s:NM_cmd_show_parse(inlines)
 553         let info = { 'disp': [],
 554                    \ 'msgs': [],
 555                    \ 'folds': [],
 556                    \ 'foldtext': {} }
 557         let msg = {}
 558         let hdr = {}
 559
 560         let in_message = 0
 561         let in_header = 0
 562         let in_body = 0
 563         let in_part = ''
 564
 565         let body_start = -1
 566         let part_start = -1
 567
 568         let mode_type = ''
 569         let mode_start = -1
 570
 571         let inlnum = 0
 572         for line in a:inlines
 573                 let inlnum = inlnum + 1
 574                 let foldinfo = []
 575
 576                 if strlen(in_part)
 577                         let part_end = 0
 578
 579                         if match(line, g:notmuch_show_part_end_regexp) != -1
 580                                 let part_end = len(info['disp'])
 581                         else
 582                                 call add(info['disp'], line)
 583                         endif
 584
 585                         if in_part == 'text/plain'
 586                                 if !part_end && mode_type == ''
 587                                         if match(line, g:notmuch_show_signature_regexp) != -1
 588                                                 let mode_type = 'sig'
 589                                                 let mode_start = len(info['disp'])
 590                                         elseif match(line, g:notmuch_show_citation_regexp) != -1
 591                                                 let mode_type = 'cit'
 592                                                 let mode_start = len(info['disp'])
 593                                         endif
 594                                 elseif mode_type == 'cit'
 595                                         if part_end || match(line, g:notmuch_show_citation_regexp) == -1
 596                                                 let outlnum = len(info['disp'])
 597                                                 let foldinfo = [ mode_type, mode_start, outlnum-1,
 598                                                                \ printf('[ %d-line citation.  Press "c" to show. ]', outlnum - mode_start) ]
 599                                                 let mode_type = ''
 600                                         endif
 601                                 elseif mode_type == 'sig'
 602                                         let outlnum = len(info['disp'])
 603                                         if (outlnum - mode_start) > g:notmuch_show_signature_lines_max
 604                                                 let mode_type = ''
 605                                         elseif part_end
 606                                                 let foldinfo = [ mode_type, mode_start, outlnum-1,
 607                                                                \ printf('[ %d-line signature.  Press "s" to show. ]', outlnum - mode_start) ]
 608                                                 let mode_type = ''
 609                                         endif
 610                                 endif
 611                         endif
 612
 613                         if part_end
 614                                 " FIXME: this is a hack for handling two folds being added for one line
 615                                 "         we should handle addinga fold in a function
 616                                 if len(foldinfo) && foldinfo[1] < foldinfo[2]
 617                                         call add(info['folds'], foldinfo[0:2])
 618                                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 619                                 endif
 620
 621                                 let foldinfo = [ 'text', part_start, part_end,
 622                                                \ printf('[ %d-line %s.  Press "p" to show. ]', part_end - part_start, in_part) ]
 623                                 let in_part = ''
 624                                 call add(info['disp'], '')
 625                         endif
 626
 627                 elseif in_body
 628                         if !has_key(msg,'body_start')
 629                                 let msg['body_start'] = len(info['disp']) + 1
 630                         endif
 631                         if match(line, g:notmuch_show_body_end_regexp) != -1
 632                                 let body_end = len(info['disp'])
 633                                 let foldinfo = [ 'bdy', body_start, body_end,
 634                                                \ printf('[ BODY %d - %d lines ]', len(info['msgs']), body_end - body_start) ]
 635
 636                                 let in_body = 0
 637
 638                         elseif match(line, g:notmuch_show_part_begin_regexp) != -1
 639                                 let m = matchlist(line, 'ID: \(\d\+\), Content-type: \(\S\+\)')
 640                                 let in_part = 'unknown'
 641                                 if len(m)
 642                                         let in_part = m[2]
 643                                 endif
 644                                 call add(info['disp'],
 645                                          \ printf('--- %s ---', in_part))
 646                                 let part_start = len(info['disp']) + 1
 647                         endif
 648
 649                 elseif in_header
 650                         if in_header == 1
 651                                 let msg['descr'] = line
 652                                 call add(info['disp'], line)
 653                                 let in_header = 2
 654                                 let msg['hdr_start'] = len(info['disp']) + 1
 655
 656                         else
 657                                 if match(line, g:notmuch_show_header_end_regexp) != -1
 658                                         let hdr_start = msg['hdr_start']+1
 659                                         let hdr_end = len(info['disp'])
 660                                         let foldinfo = [ 'hdr', hdr_start, hdr_end,
 661                                                \ printf('[ %d-line headers.  Press "h" to show. ]', hdr_end + 1 - hdr_start) ]
 662                                         let msg['header'] = hdr
 663                                         let in_header = 0
 664                                         let hdr = {}
 665                                 else
 666                                         let m = matchlist(line, '^\(\w\+\):\s*\(.*\)$')
 667                                         if len(m)
 668                                                 let hdr[m[1]] = m[2]
 669                                                 if match(g:notmuch_show_headers, m[1]) != -1
 670                                                         call add(info['disp'], line)
 671                                                 endif
 672                                         endif
 673                                 endif
 674                         endif
 675
 676                 elseif in_message
 677                         if match(line, g:notmuch_show_message_end_regexp) != -1
 678                                 let msg['end'] = len(info['disp'])
 679                                 call add(info['disp'], '')
 680
 681                                 let foldinfo = [ 'msg', msg['start'], msg['end'],
 682                                                \ printf('[ MSG %d - %s ]', len(info['msgs']), msg['descr']) ]
 683
 684                                 call add(info['msgs'], msg)
 685                                 let msg = {}
 686                                 let in_message = 0
 687                                 let in_header = 0
 688                                 let in_body = 0
 689                                 let in_part = ''
 690
 691                         elseif match(line, g:notmuch_show_header_begin_regexp) != -1
 692                                 let in_header = 1
 693                                 continue
 694
 695                         elseif match(line, g:notmuch_show_body_begin_regexp) != -1
 696                                 let body_start = len(info['disp']) + 1
 697                                 let in_body = 1
 698                                 continue
 699                         endif
 700
 701                 else
 702                         if match(line, g:notmuch_show_message_begin_regexp) != -1
 703                                 let msg['start'] = len(info['disp']) + 1
 704
 705                                 let m = matchlist(line, g:notmuch_show_message_parse_regexp)
 706                                 if len(m)
 707                                         let msg['id'] = m[1]
 708                                         let msg['depth'] = m[2]
 709                                         let msg['filename'] = m[3]
 710                                 endif
 711
 712                                 let in_message = 1
 713                         endif
 714                 endif
 715
 716                 if len(foldinfo) && foldinfo[1] < foldinfo[2]
 717                         call add(info['folds'], foldinfo[0:2])
 718                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 719                 endif
 720         endfor
 721         return info
 722 endfunction
 723
 724 function! s:NM_cmd_show_mkfolds()
 725         let info = b:nm_raw_info
 726
 727         for afold in info['folds']
 728                 exec printf('%d,%dfold', afold[1], afold[2])
 729                 if (afold[0] == 'sig' && g:notmuch_show_fold_signatures)
 730                  \ || (afold[0] == 'cit' && g:notmuch_show_fold_citations)
 731                  \ || (afold[0] == 'bdy' && g:notmuch_show_fold_bodies)
 732                  \ || (afold[0] == 'hdr' && g:notmuch_show_fold_headers)
 733                         exec printf('%dfoldclose', afold[1])
 734                 else
 735                         exec printf('%dfoldopen', afold[1])
 736                 endif
 737         endfor
 738 endfunction
 739
 740 function! s:NM_cmd_show_mksyntax()
 741         let info = b:nm_raw_info
 742         let cnt = 0
 743         for msg in info['msgs']
 744                 let cnt = cnt + 1
 745                 let start = msg['start']
 746                 let hdr_start = msg['hdr_start']
 747                 let body_start = msg['body_start']
 748                 let end = msg['end']
 749                 exec printf('syntax region nmShowMsg%dDesc start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgDesc', cnt, start, start+1)
 750                 exec printf('syntax region nmShowMsg%dHead start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgHead', cnt, hdr_start, body_start)
 751                 exec printf('syntax region nmShowMsg%dBody start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgBody', cnt, body_start, end)
 752         endfor
 753 endfunction
 754
 755 function! NM_cmd_show_foldtext()
 756         let foldtext = b:nm_raw_info['foldtext']
 757         return foldtext[v:foldstart]
 758 endfunction
 759
 760
 761 " --- notmuch helper functions {{{1
 762
 763 function! s:NM_newBuffer(type, content)
 764         enew
 765         setlocal buftype=nofile readonly modifiable
 766         silent put=a:content
 767         keepjumps 0d
 768         setlocal nomodifiable
 769         execute printf('set filetype=notmuch-%s', a:type)
 770         execute printf('set syntax=notmuch-%s', a:type)
 771         let b:nm_type = a:type
 772 endfunction
 773
 774 function! s:NM_shell_escape(word)
 775         let word = substitute(a:word, '''', '\\''', 'g')
 776         return '''' . word . ''''
 777 endfunction
 778
 779 function! s:NM_run(args)
 780         let words = a:args
 781         call map(words, 's:NM_shell_escape(v:val)')
 782         let cmd = g:notmuch_cmd . ' ' . join(words) . '< /dev/null'
 783
 784         let start = reltime()
 785         let out = system(cmd)
 786         let err = v:shell_error
 787         let delta = reltime(start)
 788
 789         echo printf('[%s] {%s} %s', reltimestr(delta), string(err), string(cmd))
 790
 791         if err
 792                 echohl Error
 793                 echo substitute(out, '\n*$', '', '')
 794                 echohl None
 795                 return ''
 796         else
 797                 return out
 798         endif
 799 endfunction
 800
 801 " --- external mail handling helpers {{{1
 802
 803 function! s:NM_new_mail()
 804         echo 'not implemented'
 805 endfunction
 806
 807 " --- other helpers {{{1
 808
 809 function! s:NM_kill_this_buffer()
 810         if exists('b:nm_prev_bufnr')
 811                 setlocal bufhidden=delete
 812                 exec printf(":buffer %d", b:nm_prev_bufnr)
 813         else
 814                 echo "This is the last buffer; use :q<CR> to quit."
 815         endif
 816 endfunction
 817
 818 function! s:NM_search_expand(arg)
 819         let word = expand(a:arg)
 820         let prev_bufnr = bufnr('%')
 821         setlocal bufhidden=hide
 822         call <SID>NM_cmd_search([word])
 823         setlocal bufhidden=delete
 824         let b:nm_prev_bufnr = prev_bufnr
 825 endfunction
 826
 827 function! s:NM_add_remove_tags(prefix, tags)
 828         let id = <SID>NM_search_thread_id()
 829         if id == ''
 830                 echoe 'Eeek! I couldn''t find the thead id!'
 831         endif
 832         call map(a:tags, 'a:prefix . v:val')
 833         " TODO: handle errors
 834         call <SID>NM_run(['tag'] + a:tags + ['--', id])
 835 endfunction
 836
 837 function! s:NM_add_remove_tags_on_screen(prefix, tags)
 838         let online = ''
 839         setlocal modifiable
 840         if a:prefix == '-'
 841                 for tagname in a:tags
 842                         exec printf('silent %ss/(\([^)]*\)\<%s\>\([^)]*\))$/(\1\2)/', online, tagname)
 843                 endfor
 844         else
 845                 for tagname in a:tags
 846                         exec printf('silent %ss/(\([^)]*\)\([^)]*\))$/(\1 %s)/', online, tagname)
 847                 endfor
 848         endif
 849         setlocal nomodifiable
 850 endfunction
 851
 852 " --- process and set the defaults {{{1
 853
 854 function! NM_set_defaults(force)
 855         for [key, dflt] in items(s:notmuch_defaults)
 856                 let cmd = ''
 857                 if !a:force && exists(key) && type(dflt) == type(eval(key))
 858                         continue
 859                 elseif type(dflt) == type(0)
 860                         let cmd = printf('let %s = %d', key, dflt)
 861                 elseif type(dflt) == type('')
 862                         let cmd = printf('let %s = ''%s''', key, dflt)
 863                 " FIXME: not sure why this didn't work when dflt is an array
 864                 "elseif type(dflt) == type([])
 865                 "        let cmd = printf('let %s = %s', key, string(dflt))
 866                 else
 867                         echoe printf('E: Unknown type in NM_set_defaults(%d) using [%s,%s]',
 868                                                 \ a:force, key, string(dflt))
 869                         continue
 870                 endif
 871                 exec cmd
 872         endfor
 873 endfunction
 874 call NM_set_defaults(0)
 875
 876 " for some reason NM_set_defaults() didn't work for arrays...
 877 if !exists('g:notmuch_show_headers')
 878         let g:notmuch_show_headers = s:notmuch_show_headers_defaults
 879 endif
 880 if !exists('g:notmuch_initial_search_words')
 881         let g:notmuch_initial_search_words = s:notmuch_initial_search_words_defaults
 882 endif
 883 if !exists('g:notmuch_folders')
 884         let g:notmuch_folders = s:notmuch_folders_defaults
 885 endif
 886
 887
 888 " --- assign keymaps {{{1
 889
 890 function! s:NM_set_map(maps)
 891         nmapclear
 892         for [key, code] in items(a:maps)
 893                 exec printf('nnoremap <buffer> %s %s', key, code)
 894         endfor
 895         " --- this is a hack for development :)
 896         nnoremap ,nmr :source ~/.vim/plugin/notmuch.vim<CR>:call NotMuch('')<CR>
 897 endfunction
 898
 899 " --- command handler {{{1
 900
 901 function! NotMuch(args)
 902         let args = a:args
 903         if !strlen(args)
 904                 let args = 'folders'
 905         endif
 906
 907         let words = split(args)
 908         if words[0] == 'folders'
 909                 let words = words[1:]
 910                 call <SID>NM_cmd_folders(words)
 911         elseif words[0] == 'search'
 912                 if len(words) > 1
 913                         let words = words[1:]
 914                 elseif exists('b:nm_search_words')
 915                         let words = b:nm_search_words
 916                 else
 917                         let words = g:notmuch_initial_search_words
 918                 endif
 919                 call <SID>NM_cmd_search(words)
 920
 921         elseif words[0] == 'show'
 922                 echoe 'show is not yet implemented.'
 923         endif
 924 endfunction
 925 function! CompleteNotMuch(arg_lead, cmd_line, cursor_pos)
 926         return []
 927 endfunction
 928
 929
 930 " --- glue {{{1
 931
 932 command! -nargs=* -complete=customlist,CompleteNotMuch NotMuch call NotMuch(<q-args>)
 933 cabbrev  notmuch <c-r>=(getcmdtype()==':' && getcmdpos()==1 ? 'NotMuch' : 'notmuch')<CR>
 934
 935 " vim: set ft=vim ts=8 sw=8 et foldmethod=marker :