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