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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('%-20s %-20s | %s (%s)', m[2], from, m[4], m[5])
 222 endfunction
 223 function! s:NM_cmd_search_mksyntax()
 224         syntax clear nmSearchFrom
 225         exec printf('syntax match nmSearchFrom /\(\] \)\@<=.\{%d\}/ oneline contained', g:notmuch_search_from_column_width)
 226 endfunction
 227
 228 " --- --- search screen action functions {{{2
 229
 230 function! s:NM_search_show_thread()
 231         let id = <SID>NM_search_thread_id()
 232         if id != ''
 233                 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         let prev_bufnr = b:nm_prev_bufnr
 330         setlocal bufhidden=delete
 331         call <SID>NM_cmd_search(b:nm_search_words)
 332         let b:nm_prev_bufnr = prev_bufnr
 333         " FIXME: should find the line of the thread we were on if possible
 334         exec printf('norm %dG', lno)
 335 endfunction
 336
 337 " --- --- search screen helper functions {{{2
 338
 339 function! s:NM_search_thread_id()
 340         if !exists('b:nm_raw_lines')
 341                 echoe 'no b:nm_raw_lines'
 342                 return ''
 343         else
 344                 let line = line('.')
 345                 let info = b:nm_raw_lines[line-1]
 346                 let what = split(info, '\s\+')[0]
 347                 return what
 348         endif
 349 endfunction
 350
 351 function! s:NM_search_add_remove_tags(prompt, prefix, intags)
 352         if type(a:intags) != type([]) || len(a:intags) == 0
 353                 " TODO: input() can support completion
 354                 let text = input(a:prompt)
 355                 if !strlen(text)
 356                         return
 357                 endif
 358                 let tags = split(text, ' ')
 359         else
 360                 let tags = a:intags
 361         endif
 362         call <SID>NM_add_remove_tags(a:prefix, tags)
 363         call <SID>NM_add_remove_tags_on_screen(a:prefix, tags)
 364 endfunction
 365
 366 " --- implement show screen {{{1
 367
 368 function! s:NM_cmd_show(words)
 369         let prev_bufnr = bufnr('%')
 370         let data = s:NM_run(['show'] + a:words)
 371         let lines = split(data, "\n")
 372
 373         let info = s:NM_cmd_show_parse(lines)
 374
 375         setlocal bufhidden=hide
 376         call <SID>NM_newBuffer('show', join(info['disp'], "\n"))
 377         setlocal bufhidden=delete
 378         let b:nm_words = a:words
 379         let b:nm_raw_info = info
 380         let b:nm_prev_bufnr = prev_bufnr
 381
 382         call <SID>NM_cmd_show_mkfolds()
 383         call <SID>NM_cmd_show_mksyntax()
 384         call <SID>NM_set_map(g:notmuch_show_maps)
 385         setlocal foldtext=NM_cmd_show_foldtext()
 386         setlocal fillchars=
 387         setlocal foldcolumn=6
 388
 389 endfunction
 390
 391 function! s:NM_show_previous(can_change_thread)
 392         let info = b:nm_raw_info
 393         let lnum = line('.')
 394         for msg in reverse(copy(info['msgs']))
 395                 if lnum <= msg['start']
 396                         continue
 397                 endif
 398
 399                 exec printf('norm %dG', msg['start'])
 400                 " TODO: try to fit the message on screen
 401                 norm zz
 402                 return
 403         endfor
 404         if !a:can_change_thread
 405                 return
 406         endif
 407         call <SID>NM_kill_this_buffer()
 408         if line('.') != line('0')
 409                 norm k
 410                 call <SID>NM_search_show_thread()
 411                 norm G
 412                 call <SID>NM_show_previous(0)
 413         else
 414                 echo 'No more messages.'
 415         endif
 416 endfunction
 417
 418 function! s:NM_show_next(can_change_thread)
 419         let info = b:nm_raw_info
 420         let lnum = line('.')
 421         for msg in info['msgs']
 422                 if lnum >= msg['start']
 423                         continue
 424                 endif
 425
 426                 exec printf('norm %dG', msg['start'])
 427                 " TODO: try to fit the message on screen
 428                 norm zz
 429                 return
 430         endfor
 431         if !a:can_change_thread
 432                 return
 433         endif
 434         call <SID>NM_kill_this_buffer()
 435         if line('.') != line('$')
 436                 norm j
 437                 call <SID>NM_search_show_thread()
 438         else
 439                 echo 'No more messages.'
 440         endif
 441 endfunction
 442
 443 function! s:NM_show_archive_thread()
 444         echo 'not implemented'
 445 endfunction
 446
 447 function! s:NM_show_mark_read_then_archive_thread()
 448         echo 'not implemented'
 449 endfunction
 450
 451 function! s:NM_show_next_message()
 452         echo 'not implemented'
 453 endfunction
 454
 455 function! s:NM_show_mark_read_then_next_open_message()
 456         echo 'not implemented'
 457 endfunction
 458
 459 function! s:NM_show_previous_message()
 460         echo 'not implemented'
 461 endfunction
 462
 463 function! s:NM_show_reply()
 464         echo 'not implemented'
 465 endfunction
 466
 467 function! s:NM_show_view_all_mime_parts()
 468         echo 'not implemented'
 469 endfunction
 470
 471 function! s:NM_show_view_raw_message()
 472         echo 'not implemented'
 473 endfunction
 474
 475 function! s:NM_show_add_tag()
 476         echo 'not implemented'
 477 endfunction
 478
 479 function! s:NM_show_remove_tag()
 480         echo 'not implemented'
 481 endfunction
 482
 483 function! s:NM_show_advance_marking_read_and_archiving()
 484         echo 'not implemented'
 485 endfunction
 486
 487 function! s:NM_show_pipe_message()
 488         echo 'not implemented'
 489 endfunction
 490
 491 " --- --- show screen helper functions {{{2
 492
 493 function! s:NM_show_thread_id()
 494         if !exists('b:nm_words')
 495                 echoe 'no b:nm_words'
 496                 return ''
 497         endif
 498         return b:nm_words[0]
 499 endfunction
 500
 501 function! s:NM_show_message_id()
 502         if !exists('b:nm_raw_info')
 503                 echoe 'no b:nm_raw_info'
 504                 return ''
 505         endif
 506         let info = b:nm_raw_info
 507         let lnum = line('.')
 508         for msg in info['msgs']
 509                 if lnum >= msg['start']
 510                         continue
 511                 endif
 512
 513                 return msg['id']
 514         endfor
 515         return ''
 516 endfunction
 517
 518 function! s:NM_show_fold_toggle(key, type, fold)
 519         let info = b:nm_raw_info
 520         let act = 'open'
 521         if a:fold
 522                 let act = 'close'
 523         endif
 524         for fld in info['folds']
 525                 if fld[0] == a:type
 526                         exec printf('%dfold%s', fld[1], act)
 527                 endif
 528         endfor
 529         exec printf('nnoremap <buffer> %s :call <SID>NM_show_fold_toggle(''%s'', ''%s'', %d)<CR>', a:key, a:key, a:type, !a:fold)
 530 endfunction
 531
 532
 533 " s:NM_cmd_show_parse returns the following dictionary:
 534 "    'disp':     lines to display
 535 "    'msgs':     message info dicts { start, end, id, depth, filename, descr, header }
 536 "    'folds':    fold info arrays [ type, start, end ]
 537 "    'foldtext': fold text indexed by start line
 538 function! s:NM_cmd_show_parse(inlines)
 539         let info = { 'disp': [],
 540                    \ 'msgs': [],
 541                    \ 'folds': [],
 542                    \ 'foldtext': {} }
 543         let msg = {}
 544         let hdr = {}
 545
 546         let in_message = 0
 547         let in_header = 0
 548         let in_body = 0
 549         let in_part = ''
 550
 551         let body_start = -1
 552         let part_start = -1
 553
 554         let mode_type = ''
 555         let mode_start = -1
 556
 557         let inlnum = 0
 558         for line in a:inlines
 559                 let inlnum = inlnum + 1
 560                 let foldinfo = []
 561
 562                 if strlen(in_part)
 563                         let part_end = 0
 564
 565                         if match(line, g:notmuch_show_part_end_regexp) != -1
 566                                 let part_end = len(info['disp'])
 567                         else
 568                                 call add(info['disp'], line)
 569                         endif
 570
 571                         if in_part == 'text/plain'
 572                                 if !part_end && mode_type == ''
 573                                         if match(line, g:notmuch_show_signature_regexp) != -1
 574                                                 let mode_type = 'sig'
 575                                                 let mode_start = len(info['disp'])
 576                                         elseif match(line, g:notmuch_show_citation_regexp) != -1
 577                                                 let mode_type = 'cit'
 578                                                 let mode_start = len(info['disp'])
 579                                         endif
 580                                 elseif mode_type == 'cit'
 581                                         if part_end || match(line, g:notmuch_show_citation_regexp) == -1
 582                                                 let outlnum = len(info['disp'])
 583                                                 let foldinfo = [ mode_type, mode_start, outlnum-1,
 584                                                                \ printf('[ %d-line citation.  Press "c" to show. ]', outlnum - mode_start) ]
 585                                                 let mode_type = ''
 586                                         endif
 587                                 elseif mode_type == 'sig'
 588                                         let outlnum = len(info['disp'])
 589                                         if (outlnum - mode_start) > g:notmuch_show_signature_lines_max
 590                                                 let mode_type = ''
 591                                         elseif part_end
 592                                                 let foldinfo = [ mode_type, mode_start, outlnum-1,
 593                                                                \ printf('[ %d-line signature.  Press "s" to show. ]', outlnum - mode_start) ]
 594                                                 let mode_type = ''
 595                                         endif
 596                                 endif
 597                         endif
 598
 599                         if part_end
 600                                 " FIXME: this is a hack for handling two folds being added for one line
 601                                 "         we should handle addinga fold in a function
 602                                 if len(foldinfo) && foldinfo[1] < foldinfo[2]
 603                                         call add(info['folds'], foldinfo[0:2])
 604                                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 605                                 endif
 606
 607                                 let foldinfo = [ 'text', part_start, part_end,
 608                                                \ printf('[ %d-line %s.  Press "p" to show. ]', part_end - part_start, in_part) ]
 609                                 let in_part = ''
 610                                 call add(info['disp'], '')
 611                         endif
 612
 613                 elseif in_body
 614                         if !has_key(msg,'body_start')
 615                                 let msg['body_start'] = len(info['disp']) + 1
 616                         endif
 617                         if match(line, g:notmuch_show_body_end_regexp) != -1
 618                                 let body_end = len(info['disp'])
 619                                 let foldinfo = [ 'bdy', body_start, body_end,
 620                                                \ printf('[ BODY %d - %d lines ]', len(info['msgs']), body_end - body_start) ]
 621
 622                                 let in_body = 0
 623
 624                         elseif match(line, g:notmuch_show_part_begin_regexp) != -1
 625                                 let m = matchlist(line, 'ID: \(\d\+\), Content-type: \(\S\+\)')
 626                                 let in_part = 'unknown'
 627                                 if len(m)
 628                                         let in_part = m[2]
 629                                 endif
 630                                 call add(info['disp'],
 631                                          \ printf('--- %s ---', in_part))
 632                                 let part_start = len(info['disp']) + 1
 633                         endif
 634
 635                 elseif in_header
 636                         if in_header == 1
 637                                 let msg['descr'] = line
 638                                 call add(info['disp'], line)
 639                                 let in_header = 2
 640                                 let msg['hdr_start'] = len(info['disp']) + 1
 641
 642                         else
 643                                 if match(line, g:notmuch_show_header_end_regexp) != -1
 644                                         let hdr_start = msg['hdr_start']+1
 645                                         let hdr_end = len(info['disp'])
 646                                         let foldinfo = [ 'hdr', hdr_start, hdr_end,
 647                                                \ printf('[ %d-line headers.  Press "h" to show. ]', hdr_end + 1 - hdr_start) ]
 648                                         let msg['header'] = hdr
 649                                         let in_header = 0
 650                                         let hdr = {}
 651                                 else
 652                                         let m = matchlist(line, '^\(\w\+\):\s*\(.*\)$')
 653                                         if len(m)
 654                                                 let hdr[m[1]] = m[2]
 655                                                 if match(g:notmuch_show_headers, m[1]) != -1
 656                                                         call add(info['disp'], line)
 657                                                 endif
 658                                         endif
 659                                 endif
 660                         endif
 661
 662                 elseif in_message
 663                         if match(line, g:notmuch_show_message_end_regexp) != -1
 664                                 let msg['end'] = len(info['disp'])
 665                                 call add(info['disp'], '')
 666
 667                                 let foldinfo = [ 'msg', msg['start'], msg['end'],
 668                                                \ printf('[ MSG %d - %s ]', len(info['msgs']), msg['descr']) ]
 669
 670                                 call add(info['msgs'], msg)
 671                                 let msg = {}
 672                                 let in_message = 0
 673                                 let in_header = 0
 674                                 let in_body = 0
 675                                 let in_part = ''
 676
 677                         elseif match(line, g:notmuch_show_header_begin_regexp) != -1
 678                                 let in_header = 1
 679                                 continue
 680
 681                         elseif match(line, g:notmuch_show_body_begin_regexp) != -1
 682                                 let body_start = len(info['disp']) + 1
 683                                 let in_body = 1
 684                                 continue
 685                         endif
 686
 687                 else
 688                         if match(line, g:notmuch_show_message_begin_regexp) != -1
 689                                 let msg['start'] = len(info['disp']) + 1
 690
 691                                 let m = matchlist(line, g:notmuch_show_message_parse_regexp)
 692                                 if len(m)
 693                                         let msg['id'] = m[1]
 694                                         let msg['depth'] = m[2]
 695                                         let msg['filename'] = m[3]
 696                                 endif
 697
 698                                 let in_message = 1
 699                         endif
 700                 endif
 701
 702                 if len(foldinfo) && foldinfo[1] < foldinfo[2]
 703                         call add(info['folds'], foldinfo[0:2])
 704                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 705                 endif
 706         endfor
 707         return info
 708 endfunction
 709
 710 function! s:NM_cmd_show_mkfolds()
 711         let info = b:nm_raw_info
 712
 713         for afold in info['folds']
 714                 exec printf('%d,%dfold', afold[1], afold[2])
 715                 if (afold[0] == 'sig' && g:notmuch_show_fold_signatures)
 716                  \ || (afold[0] == 'cit' && g:notmuch_show_fold_citations)
 717                  \ || (afold[0] == 'bdy' && g:notmuch_show_fold_bodies)
 718                  \ || (afold[0] == 'hdr' && g:notmuch_show_fold_headers)
 719                         exec printf('%dfoldclose', afold[1])
 720                 else
 721                         exec printf('%dfoldopen', afold[1])
 722                 endif
 723         endfor
 724 endfunction
 725
 726 function! s:NM_cmd_show_mksyntax()
 727         let info = b:nm_raw_info
 728         let cnt = 0
 729         for msg in info['msgs']
 730                 let cnt = cnt + 1
 731                 let start = msg['start']
 732                 let hdr_start = msg['hdr_start']
 733                 let body_start = msg['body_start']
 734                 let end = msg['end']
 735                 exec printf('syntax region nmShowMsg%dDesc start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgDesc', cnt, start, start+1)
 736                 exec printf('syntax region nmShowMsg%dHead start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgHead', cnt, hdr_start, body_start)
 737                 exec printf('syntax region nmShowMsg%dBody start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgBody', cnt, body_start, end)
 738         endfor
 739 endfunction
 740
 741 function! NM_cmd_show_foldtext()
 742         let foldtext = b:nm_raw_info['foldtext']
 743         return foldtext[v:foldstart]
 744 endfunction
 745
 746
 747 " --- notmuch helper functions {{{1
 748
 749 function! s:NM_newBuffer(type, content)
 750         enew
 751         setlocal buftype=nofile readonly modifiable
 752         silent put=a:content
 753         keepjumps 0d
 754         setlocal nomodifiable
 755         execute printf('set filetype=notmuch-%s', a:type)
 756         execute printf('set syntax=notmuch-%s', a:type)
 757         let b:nm_type = a:type
 758 endfunction
 759
 760 function! s:NM_shell_escape(word)
 761         let word = substitute(a:word, '''', '\\''', 'g')
 762         return '''' . word . ''''
 763 endfunction
 764
 765 function! s:NM_run(args)
 766         let words = a:args
 767         call map(words, 's:NM_shell_escape(v:val)')
 768         let cmd = g:notmuch_cmd . ' ' . join(words) . '< /dev/null'
 769
 770         let start = reltime()
 771         let out = system(cmd)
 772         let err = v:shell_error
 773         let delta = reltime(start)
 774
 775         echo printf('[%s] {%s} %s', reltimestr(delta), string(err), string(cmd))
 776
 777         if err
 778                 echohl Error
 779                 echo substitute(out, '\n*$', '', '')
 780                 echohl None
 781                 return ''
 782         else
 783                 return out
 784         endif
 785 endfunction
 786
 787 " --- external mail handling helpers {{{1
 788
 789 function! s:NM_new_mail()
 790         echo 'not implemented'
 791 endfunction
 792
 793 " --- other helpers {{{1
 794
 795 function! s:NM_kill_this_buffer()
 796         if exists('b:nm_prev_bufnr')
 797                 setlocal bufhidden=delete
 798                 exec printf(":buffer %d", b:nm_prev_bufnr)
 799         else
 800                 echo "This is the last buffer; use :q<CR> to quit."
 801         endif
 802 endfunction
 803
 804 function! s:NM_search_expand(arg)
 805         let word = expand(a:arg)
 806         let prev_bufnr = bufnr('%')
 807         setlocal bufhidden=hide
 808         call <SID>NM_cmd_search([word])
 809         setlocal bufhidden=delete
 810         let b:nm_prev_bufnr = prev_bufnr
 811 endfunction
 812
 813 function! s:NM_add_remove_tags(prefix, tags)
 814         let id = <SID>NM_search_thread_id()
 815         if id == ''
 816                 echoe 'Eeek! I couldn''t find the thead id!'
 817         endif
 818         call map(a:tags, 'a:prefix . v:val')
 819         " TODO: handle errors
 820         call <SID>NM_run(['tag'] + a:tags + ['--', id])
 821 endfunction
 822
 823 function! s:NM_add_remove_tags_on_screen(prefix, tags)
 824         let online = ''
 825         setlocal modifiable
 826         if a:prefix == '-'
 827                 for tagname in a:tags
 828                         exec printf('silent %ss/(\([^)]*\)\<%s\>\([^)]*\))$/(\1\2)/', online, tagname)
 829                 endfor
 830         else
 831                 for tagname in a:tags
 832                         exec printf('silent %ss/(\([^)]*\)\([^)]*\))$/(\1 %s)/', online, tagname)
 833                 endfor
 834         endif
 835         setlocal nomodifiable
 836 endfunction
 837
 838 " --- process and set the defaults {{{1
 839
 840 function! NM_set_defaults(force)
 841         for [key, dflt] in items(s:notmuch_defaults)
 842                 let cmd = ''
 843                 if !a:force && exists(key) && type(dflt) == type(eval(key))
 844                         continue
 845                 elseif type(dflt) == type(0)
 846                         let cmd = printf('let %s = %d', key, dflt)
 847                 elseif type(dflt) == type('')
 848                         let cmd = printf('let %s = ''%s''', key, dflt)
 849                 " FIXME: not sure why this didn't work when dflt is an array
 850                 "elseif type(dflt) == type([])
 851                 "        let cmd = printf('let %s = %s', key, string(dflt))
 852                 else
 853                         echoe printf('E: Unknown type in NM_set_defaults(%d) using [%s,%s]',
 854                                                 \ a:force, key, string(dflt))
 855                         continue
 856                 endif
 857                 exec cmd
 858         endfor
 859 endfunction
 860 call NM_set_defaults(0)
 861
 862 " for some reason NM_set_defaults() didn't work for arrays...
 863 if !exists('g:notmuch_show_headers')
 864         let g:notmuch_show_headers = s:notmuch_show_headers_defaults
 865 endif
 866 if !exists('g:notmuch_initial_search_words')
 867         let g:notmuch_initial_search_words = s:notmuch_initial_search_words_defaults
 868 endif
 869 if !exists('g:notmuch_folders')
 870         let g:notmuch_folders = s:notmuch_folders_defaults
 871 endif
 872
 873
 874 " --- assign keymaps {{{1
 875
 876 function! s:NM_set_map(maps)
 877         nmapclear
 878         for [key, code] in items(a:maps)
 879                 exec printf('nnoremap <buffer> %s %s', key, code)
 880         endfor
 881         " --- this is a hack for development :)
 882         nnoremap ,nmr :source ~/.vim/plugin/notmuch.vim<CR>:call NotMuch('')<CR>
 883 endfunction
 884
 885 " --- command handler {{{1
 886
 887 function! NotMuch(args)
 888         let args = a:args
 889         if !strlen(args)
 890                 let args = 'folders'
 891         endif
 892
 893         let words = split(args)
 894         if words[0] == 'folders'
 895                 let words = words[1:]
 896                 call <SID>NM_cmd_folders(words)
 897         elseif words[0] == 'search'
 898                 if len(words) > 1
 899                         let words = words[1:]
 900                 elseif exists('b:nm_search_words')
 901                         let words = b:nm_search_words
 902                 else
 903                         let words = g:notmuch_initial_search_words
 904                 endif
 905                 call <SID>NM_cmd_search(words)
 906
 907         elseif words[0] == 'show'
 908                 echoe 'show is not yet implemented.'
 909         endif
 910 endfunction
 911 function! CompleteNotMuch(arg_lead, cmd_line, cursor_pos)
 912         return []
 913 endfunction
 914
 915
 916 " --- glue {{{1
 917
 918 command! -nargs=* -complete=customlist,CompleteNotMuch NotMuch call NotMuch(<q-args>)
 919 cabbrev  notmuch <c-r>=(getcmdtype()==':' && getcmdpos()==1 ? 'NotMuch' : 'notmuch')<CR>
 920
 921 " vim: set ft=vim ts=8 sw=8 et foldmethod=marker :