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