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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 = m[3][0:max-4] . '...'
 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         "syntax region nmSearchFrom start='\]\@<=' end='.'me=e+5,he=e+5,re=e+5 oneline contained
 222         "syntax match nmSearchFrom /\]\@<=.\{10\}/ oneline contained
 223         exec printf('syntax match nmSearchFrom /\(\] \)\@<=.\{%d\}/ oneline contained', g:notmuch_search_from_column_width)
 224         "exec printf('syntax region nmSearchFrom start=''\%%%dv'' end=''\%%%dv'' oneline contained', 20, 30)
 225 endfunction
 226
 227 " --- --- search screen action functions {{{2
 228
 229 function! s:NM_search_show_thread()
 230         let id = <SID>NM_search_find_thread_id()
 231         if id != ''
 232                 call <SID>NM_cmd_show([id])
 233         endif
 234 endfunction
 235
 236 function! s:NM_search_prompt()
 237         " TODO: input() can support completion
 238         let text = input('NotMuch Search: ')
 239         if strlen(text)
 240                 let tags = split(text)
 241         else
 242                 let tags = s:notmuch_initial_search_words_defaults
 243         endif
 244         let prev_bufnr = bufnr('%')
 245         if b:nm_type == 'search'
 246                 " TODO: we intend to replace the current buffer,
 247                 "       ... maybe we could just clear it
 248                 setlocal bufhidden=delete
 249         else
 250                 setlocal bufhidden=hide
 251         endif
 252         call <SID>NM_cmd_search(tags)
 253         setlocal bufhidden=delete
 254         let b:nm_prev_bufnr = prev_bufnr
 255 endfunction
 256
 257 function! s:NM_search_edit()
 258         " TODO: input() can support completion
 259         let text = input('NotMuch Search: ', join(b:nm_search_words, ' '))
 260         if strlen(text)
 261                 call <SID>NM_cmd_search(split(text))
 262         endif
 263 endfunction
 264
 265 function! s:NM_search_archive_thread()
 266         call <SID>NM_add_remove_tags_on_screen('-', ['inbox'])
 267         call <SID>NM_add_remove_tags('-', ['inbox'])
 268         norm j
 269 endfunction
 270
 271 function! s:NM_search_filter()
 272         call <SID>NM_search_filter_helper('Filter: ', '')
 273 endfunction
 274
 275 function! s:NM_search_filter_by_tag()
 276         call <SID>NM_search_filter_helper('Filter Tag(s): ', 'tag:')
 277 endfunction
 278
 279 function! s:NM_search_filter_helper(prompt, prefix)
 280         " TODO: input() can support completion
 281         let text = input(a:prompt)
 282         if !strlen(text)
 283                 return
 284         endif
 285
 286         let tags = split(text)
 287         map(tags, 'and a:prefix . v:val')
 288         let tags = b:nm_search_words + tags
 289         echo tags
 290
 291         let prev_bufnr = bufnr('%')
 292         setlocal bufhidden=hide
 293         call <SID>NM_cmd_search(tags)
 294         setlocal bufhidden=delete
 295         let b:nm_prev_bufnr = prev_bufnr
 296 endfunction
 297
 298 function! s:NM_search_toggle_order()
 299         let g:notmuch_search_newest_first = !g:notmuch_search_newest_first
 300         " FIXME: maybe this would be better done w/o reading re-reading the lines
 301         "         reversing the b:nm_raw_lines and the buffer lines would be better
 302         call <SID>NM_search_refresh_view()
 303 endfunction
 304
 305 function! s:NM_search_reply_to_thread()
 306         echo 'not implemented'
 307 endfunction
 308
 309 function! s:NM_search_add_tags(tags)
 310         call <SID>NM_search_add_remove_tags('Add Tag(s): ', '+', a:tags)
 311 endfunction
 312
 313 function! s:NM_search_remove_tags(tags)
 314         call <SID>NM_search_add_remove_tags('Remove Tag(s): ', '-', a:tags)
 315 endfunction
 316
 317 function! s:NM_search_refresh_view()
 318         let lno = line('.')
 319         setlocal bufhidden=delete
 320         call <SID>NM_cmd_search(b:nm_search_words)
 321         " FIXME: should find the line of the thread we were on if possible
 322         exec printf('norm %dG', lno)
 323 endfunction
 324
 325 " --- --- search screen helper functions {{{2
 326
 327 function! s:NM_search_find_thread_id()
 328         if !exists('b:nm_raw_lines')
 329                 echoe 'no b:nm_raw_lines'
 330                 return ''
 331         else
 332                 let line = line('.')
 333                 let info = b:nm_raw_lines[line-1]
 334                 let what = split(info, '\s\+')[0]
 335                 return what
 336         endif
 337 endfunction
 338
 339 function! s:NM_search_add_remove_tags(prompt, prefix, intags)
 340         if type(a:intags) != type([]) || len(a:intags) == 0
 341                 " TODO: input() can support completion
 342                 let text = input(a:prompt)
 343                 if !strlen(text)
 344                         return
 345                 endif
 346                 let tags = split(text, ' ')
 347         else
 348                 let tags = a:intags
 349         endif
 350         call <SID>NM_add_remove_tags(a:prefix, tags)
 351         call <SID>NM_add_remove_tags_on_screen(a:prefix, tags)
 352 endfunction
 353
 354 " --- implement show screen {{{1
 355
 356 function! s:NM_cmd_show(words)
 357         let prev_bufnr = bufnr('%')
 358         let data = s:NM_run(['show'] + a:words)
 359         let lines = split(data, "\n")
 360
 361         let info = s:NM_cmd_show_parse(lines)
 362
 363         setlocal bufhidden=hide
 364         call <SID>NM_newBuffer('show', join(info['disp'], "\n"))
 365         setlocal bufhidden=delete
 366         let b:nm_raw_info = info
 367         let b:nm_prev_bufnr = prev_bufnr
 368
 369         call <SID>NM_cmd_show_mkfolds()
 370         call <SID>NM_cmd_show_mksyntax()
 371         call <SID>NM_set_map(g:notmuch_show_maps)
 372         setlocal foldtext=NM_cmd_show_foldtext()
 373         setlocal fillchars=
 374         setlocal foldcolumn=6
 375
 376 endfunction
 377
 378 function! s:NM_show_previous(can_change_thread)
 379         let info = b:nm_raw_info
 380         let lnum = line('.')
 381         for msg in reverse(copy(info['msgs']))
 382                 if lnum <= msg['start']
 383                         continue
 384                 endif
 385
 386                 exec printf('norm %dG', msg['start'])
 387                 " TODO: try to fit the message on screen
 388                 norm zz
 389                 return
 390         endfor
 391         if !a:can_change_thread
 392                 return
 393         endif
 394         call <SID>NM_kill_this_buffer()
 395         if line('.') != line('0')
 396                 norm k
 397                 call <SID>NM_search_show_thread()
 398                 norm G
 399                 call <SID>NM_show_previous(0)
 400         else
 401                 echo 'No more messages.'
 402         endif
 403 endfunction
 404
 405 function! s:NM_show_next(can_change_thread)
 406         let info = b:nm_raw_info
 407         let lnum = line('.')
 408         for msg in info['msgs']
 409                 if lnum >= msg['start']
 410                         continue
 411                 endif
 412
 413                 exec printf('norm %dG', msg['start'])
 414                 " TODO: try to fit the message on screen
 415                 norm zz
 416                 return
 417         endfor
 418         if !a:can_change_thread
 419                 return
 420         endif
 421         call <SID>NM_kill_this_buffer()
 422         if line('.') != line('$')
 423                 norm j
 424                 call <SID>NM_search_show_thread()
 425         else
 426                 echo 'No more messages.'
 427         endif
 428 endfunction
 429
 430 function! s:NM_show_archive_thread()
 431         echo 'not implemented'
 432 endfunction
 433
 434 function! s:NM_show_mark_read_then_archive_thread()
 435         echo 'not implemented'
 436 endfunction
 437
 438 function! s:NM_show_next_message()
 439         echo 'not implemented'
 440 endfunction
 441
 442 function! s:NM_show_mark_read_then_next_open_message()
 443         echo 'not implemented'
 444 endfunction
 445
 446 function! s:NM_show_previous_message()
 447         echo 'not implemented'
 448 endfunction
 449
 450 function! s:NM_show_reply()
 451         echo 'not implemented'
 452 endfunction
 453
 454 function! s:NM_show_view_all_mime_parts()
 455         echo 'not implemented'
 456 endfunction
 457
 458 function! s:NM_show_view_raw_message()
 459         echo 'not implemented'
 460 endfunction
 461
 462 function! s:NM_show_add_tag()
 463         echo 'not implemented'
 464 endfunction
 465
 466 function! s:NM_show_remove_tag()
 467         echo 'not implemented'
 468 endfunction
 469
 470 function! s:NM_show_advance_marking_read_and_archiving()
 471         echo 'not implemented'
 472 endfunction
 473
 474 function! s:NM_show_pipe_message()
 475         echo 'not implemented'
 476 endfunction
 477
 478 " --- --- search screen helper functions {{{2
 479
 480 function! s:NM_show_fold_toggle(key, type, fold)
 481         let info = b:nm_raw_info
 482         let act = 'open'
 483         if a:fold
 484                 let act = 'close'
 485         endif
 486         for fld in info['folds']
 487                 if fld[0] == a:type
 488                         exec printf('%dfold%s', fld[1], act)
 489                 endif
 490         endfor
 491         exec printf('nnoremap <buffer> %s :call <SID>NM_show_fold_toggle(''%s'', ''%s'', %d)<CR>', a:key, a:key, a:type, !a:fold)
 492 endfunction
 493
 494
 495 " s:NM_cmd_show_parse returns the following dictionary:
 496 "    'disp':     lines to display
 497 "    'msgs':     message info dicts { start, end, id, depth, filename, descr, header }
 498 "    'folds':    fold info arrays [ type, start, end ]
 499 "    'foldtext': fold text indexed by start line
 500 function! s:NM_cmd_show_parse(inlines)
 501         let info = { 'disp': [],
 502                    \ 'msgs': [],
 503                    \ 'folds': [],
 504                    \ 'foldtext': {} }
 505         let msg = {}
 506         let hdr = {}
 507
 508         let in_message = 0
 509         let in_header = 0
 510         let in_body = 0
 511         let in_part = ''
 512
 513         let body_start = -1
 514         let part_start = -1
 515
 516         let mode_type = ''
 517         let mode_start = -1
 518
 519         let inlnum = 0
 520         for line in a:inlines
 521                 let inlnum = inlnum + 1
 522                 let foldinfo = []
 523
 524                 if strlen(in_part)
 525                         let part_end = 0
 526
 527                         if match(line, g:notmuch_show_part_end_regexp) != -1
 528                                 let part_end = len(info['disp'])
 529                         else
 530                                 call add(info['disp'], line)
 531                         endif
 532
 533                         if in_part == 'text/plain'
 534                                 if !part_end && mode_type == ''
 535                                         if match(line, g:notmuch_show_signature_regexp) != -1
 536                                                 let mode_type = 'sig'
 537                                                 let mode_start = len(info['disp'])
 538                                         elseif match(line, g:notmuch_show_citation_regexp) != -1
 539                                                 let mode_type = 'cit'
 540                                                 let mode_start = len(info['disp'])
 541                                         endif
 542                                 elseif mode_type == 'cit'
 543                                         if part_end || match(line, g:notmuch_show_citation_regexp) == -1
 544                                                 let outlnum = len(info['disp'])
 545                                                 if mode_start != outlnum
 546                                                         let foldinfo = [ mode_type, mode_start, outlnum-1,
 547                                                                        \ printf('[ %d-line citation.  Press "c" to show. ]', outlnum - mode_start) ]
 548                                                 endif
 549                                                 let mode_type = ''
 550                                         endif
 551                                 elseif mode_type == 'sig'
 552                                         let outlnum = len(info['disp'])
 553                                         if (outlnum - mode_start) > g:notmuch_show_signature_lines_max
 554                                                 let mode_type = ''
 555                                         elseif part_end
 556                                                 if mode_start != outlnum
 557                                                         let foldinfo = [ mode_type, mode_start, outlnum-1,
 558                                                                        \ printf('[ %d-line signature.  Press "s" to show. ]', outlnum - mode_start) ]
 559                                                 endif
 560                                                 let mode_type = ''
 561                                         endif
 562                                 endif
 563                         endif
 564
 565                         if part_end
 566                                 " FIXME: this is a hack for handling two folds being added for one line
 567                                 "         we should handle addinga fold in a function
 568                                 if len(foldinfo)
 569                                         call add(info['folds'], foldinfo[0:2])
 570                                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 571                                 endif
 572
 573                                 let foldinfo = [ 'text', part_start, part_end,
 574                                                \ printf('[ %d-line %s.  Press "p" to show. ]', part_end - part_start, in_part) ]
 575                                 let in_part = ''
 576                                 call add(info['disp'], '')
 577                         endif
 578
 579                 elseif in_body
 580                         if !has_key(msg,'body_start')
 581                                 let msg['body_start'] = len(info['disp']) + 1
 582                         endif
 583                         if match(line, g:notmuch_show_body_end_regexp) != -1
 584                                 let body_end = len(info['disp'])
 585                                 let foldinfo = [ 'bdy', body_start, body_end,
 586                                                \ printf('[ BODY %d - %d lines ]', len(info['msgs']), body_end - body_start) ]
 587
 588                                 let in_body = 0
 589
 590                         elseif match(line, g:notmuch_show_part_begin_regexp) != -1
 591                                 let m = matchlist(line, 'ID: \(\d\+\), Content-type: \(\S\+\)')
 592                                 let in_part = 'unknown'
 593                                 if len(m)
 594                                         let in_part = m[2]
 595                                 endif
 596                                 call add(info['disp'],
 597                                          \ printf('--- %s ---', in_part))
 598                                 let part_start = len(info['disp']) + 1
 599                         endif
 600
 601                 elseif in_header
 602                         if in_header == 1
 603                                 let msg['descr'] = line
 604                                 call add(info['disp'], line)
 605                                 let in_header = 2
 606                                 let msg['hdr_start'] = len(info['disp']) + 1
 607
 608                         else
 609                                 if match(line, g:notmuch_show_header_end_regexp) != -1
 610                                         let hdr_start = msg['hdr_start']+1
 611                                         let hdr_end = len(info['disp'])
 612                                         let foldinfo = [ 'hdr', hdr_start, hdr_end,
 613                                                \ printf('[ %d-line headers.  Press "h" to show. ]', hdr_end + 1 - hdr_start) ]
 614                                         let msg['header'] = hdr
 615                                         let in_header = 0
 616                                         let hdr = {}
 617                                 else
 618                                         let m = matchlist(line, '^\(\w\+\):\s*\(.*\)$')
 619                                         if len(m)
 620                                                 let hdr[m[1]] = m[2]
 621                                                 if match(g:notmuch_show_headers, m[1]) != -1
 622                                                         call add(info['disp'], line)
 623                                                 endif
 624                                         endif
 625                                 endif
 626                         endif
 627
 628                 elseif in_message
 629                         if match(line, g:notmuch_show_message_end_regexp) != -1
 630                                 let msg['end'] = len(info['disp'])
 631                                 call add(info['disp'], '')
 632
 633                                 let foldinfo = [ 'msg', msg['start'], msg['end'],
 634                                                \ printf('[ MSG %d - %s ]', len(info['msgs']), msg['descr']) ]
 635
 636                                 call add(info['msgs'], msg)
 637                                 let msg = {}
 638                                 let in_message = 0
 639                                 let in_header = 0
 640                                 let in_body = 0
 641                                 let in_part = ''
 642
 643                         elseif match(line, g:notmuch_show_header_begin_regexp) != -1
 644                                 let in_header = 1
 645                                 continue
 646
 647                         elseif match(line, g:notmuch_show_body_begin_regexp) != -1
 648                                 let body_start = len(info['disp']) + 1
 649                                 let in_body = 1
 650                                 continue
 651                         endif
 652
 653                 else
 654                         if match(line, g:notmuch_show_message_begin_regexp) != -1
 655                                 let msg['start'] = len(info['disp']) + 1
 656
 657                                 let m = matchlist(line, g:notmuch_show_message_parse_regexp)
 658                                 if len(m)
 659                                         let msg['id'] = m[1]
 660                                         let msg['depth'] = m[2]
 661                                         let msg['filename'] = m[3]
 662                                 endif
 663
 664                                 let in_message = 1
 665                         endif
 666                 endif
 667
 668                 if len(foldinfo)
 669                         call add(info['folds'], foldinfo[0:2])
 670                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 671                 endif
 672         endfor
 673         return info
 674 endfunction
 675
 676 function! s:NM_cmd_show_mkfolds()
 677         let info = b:nm_raw_info
 678
 679         for afold in info['folds']
 680                 exec printf('%d,%dfold', afold[1], afold[2])
 681                 if (afold[0] == 'sig' && g:notmuch_show_fold_signatures)
 682                  \ || (afold[0] == 'cit' && g:notmuch_show_fold_citations)
 683                  \ || (afold[0] == 'bdy' && g:notmuch_show_fold_bodies)
 684                  \ || (afold[0] == 'hdr' && g:notmuch_show_fold_headers)
 685                         exec printf('%dfoldclose', afold[1])
 686                 else
 687                         exec printf('%dfoldopen', afold[1])
 688                 endif
 689         endfor
 690 endfunction
 691
 692 function! s:NM_cmd_show_mksyntax()
 693         let info = b:nm_raw_info
 694         let cnt = 0
 695         for msg in info['msgs']
 696                 let cnt = cnt + 1
 697                 let start = msg['start']
 698                 let hdr_start = msg['hdr_start']
 699                 let body_start = msg['body_start']
 700                 let end = msg['end']
 701                 exec printf('syntax region nmShowMsg%dDesc start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgDesc', cnt, start, start+1)
 702                 exec printf('syntax region nmShowMsg%dHead start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgHead', cnt, hdr_start, body_start)
 703                 exec printf('syntax region nmShowMsg%dBody start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgBody', cnt, body_start, end)
 704         endfor
 705 endfunction
 706
 707 function! NM_cmd_show_foldtext()
 708         let foldtext = b:nm_raw_info['foldtext']
 709         return foldtext[v:foldstart]
 710 endfunction
 711
 712
 713 " --- notmuch helper functions {{{1
 714
 715 function! s:NM_newBuffer(type, content)
 716         enew
 717         setlocal buftype=nofile readonly modifiable
 718         silent put=a:content
 719         keepjumps 0d
 720         setlocal nomodifiable
 721         execute printf('set filetype=notmuch-%s', a:type)
 722         execute printf('set syntax=notmuch-%s', a:type)
 723         let b:nm_type = a:type
 724 endfunction
 725
 726 function! s:NM_run(args)
 727         let cmd = g:notmuch_cmd . ' ' . join(a:args) . '< /dev/null'
 728
 729         let start = reltime()
 730         let out = system(cmd)
 731         let err = v:shell_error
 732         let delta = reltime(start)
 733
 734         echo printf('[%s] {%s} %s', reltimestr(delta), string(err), string(cmd))
 735
 736         if err
 737                 echohl Error
 738                 echo substitute(out, '\n*$', '', '')
 739                 echohl None
 740                 return ''
 741         else
 742                 return out
 743         endif
 744 endfunction
 745
 746 " --- external mail handling helpers {{{1
 747
 748 function! s:NM_new_mail()
 749         echo 'not implemented'
 750 endfunction
 751
 752 " --- other helpers {{{1
 753
 754 function! s:NM_kill_this_buffer()
 755         if exists('b:nm_prev_bufnr')
 756                 setlocal bufhidden=delete
 757                 exec printf(":buffer %d", b:nm_prev_bufnr)
 758         else
 759                 echo "Nothing to kill."
 760         endif
 761 endfunction
 762
 763 function! s:NM_add_remove_tags(prefix, tags)
 764         let id = <SID>NM_search_find_thread_id()
 765         if id == ''
 766                 echoe 'Eeek! I couldn''t find the thead id!'
 767         endif
 768         call map(a:tags, 'a:prefix . v:val')
 769         " TODO: handle errors
 770         call <SID>NM_run(['tag'] + a:tags + ['--', id])
 771 endfunction
 772
 773 function! s:NM_add_remove_tags_on_screen(prefix, tags)
 774         let online = ''
 775         setlocal modifiable
 776         if a:prefix == '-'
 777                 for tagname in a:tags
 778                         exec printf('silent %ss/(\([^)]*\)\<%s\>\([^)]*\))$/(\1\2)/', online, tagname)
 779                 endfor
 780         else
 781                 for tagname in a:tags
 782                         exec printf('silent %ss/(\([^)]*\)\([^)]*\))$/(\1 %s)/', online, tagname)
 783                 endfor
 784         endif
 785         setlocal nomodifiable
 786 endfunction
 787
 788 " --- process and set the defaults {{{1
 789
 790 function! NM_set_defaults(force)
 791         for [key, dflt] in items(s:notmuch_defaults)
 792                 let cmd = ''
 793                 if !a:force && exists(key) && type(dflt) == type(eval(key))
 794                         continue
 795                 elseif type(dflt) == type(0)
 796                         let cmd = printf('let %s = %d', key, dflt)
 797                 elseif type(dflt) == type('')
 798                         let cmd = printf('let %s = ''%s''', key, dflt)
 799                 "elseif type(dflt) == type([])
 800                 "        let cmd = printf('let %s = %s', key, string(dflt))
 801                 else
 802                         echoe printf('E: Unknown type in NM_set_defaults(%d) using [%s,%s]',
 803                                                 \ a:force, key, string(dflt))
 804                         continue
 805                 endif
 806                 exec cmd
 807         endfor
 808 endfunction
 809 call NM_set_defaults(0)
 810
 811 " for some reason NM_set_defaults() didn't work for arrays...
 812 if !exists('g:notmuch_show_headers')
 813         let g:notmuch_show_headers = s:notmuch_show_headers_defaults
 814 endif
 815 if !exists('g:notmuch_initial_search_words')
 816         let g:notmuch_initial_search_words = s:notmuch_initial_search_words_defaults
 817 endif
 818 if !exists('g:notmuch_folders')
 819         let g:notmuch_folders = s:notmuch_folders_defaults
 820 endif
 821
 822
 823 " --- assign keymaps {{{1
 824
 825 function! s:NM_set_map(maps)
 826         nmapclear
 827         for [key, code] in items(a:maps)
 828                 exec printf('nnoremap <buffer> %s %s', key, code)
 829         endfor
 830         " --- this is a hack for development :)
 831         nnoremap ,nmr :source ~/.vim/plugin/notmuch.vim<CR>:call NotMuch('')<CR>
 832 endfunction
 833
 834 " --- command handler {{{1
 835
 836 function! NotMuch(args)
 837         let args = a:args
 838         if !strlen(args)
 839                 let args = 'folders'
 840         endif
 841
 842         let words = split(args)
 843         if words[0] == 'folders'
 844                 let words = words[1:]
 845                 call <SID>NM_cmd_folders(words)
 846         elseif words[0] == 'search'
 847                 if len(words) > 1
 848                         let words = words[1:]
 849                 elseif exists('b:nm_search_words')
 850                         let words = b:nm_search_words
 851                 else
 852                         let words = g:notmuch_initial_search_words
 853                 endif
 854                 call <SID>NM_cmd_search(words)
 855
 856         elseif words[0] == 'show'
 857                 echoe 'show is not yet implemented.'
 858         endif
 859 endfunction
 860 function! CompleteNotMuch(arg_lead, cmd_line, cursor_pos)
 861         return []
 862 endfunction
 863
 864
 865 " --- glue {{{1
 866
 867 command! -nargs=* -complete=customlist,CompleteNotMuch NotMuch call NotMuch(<q-args>)
 868 cabbrev  notmuch <c-r>=(getcmdtype()==':' && getcmdpos()==1 ? 'NotMuch' : 'notmuch')<CR>
 869
 870 " vim: set ft=vim ts=8 sw=8 et foldmethod=marker :