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   1 " notmuch.vim plugin --- run notmuch within vim
   2 "
   3 " Copyright © Carl Worth
   4 "
   5 " This file is part of Notmuch.
   6 "
   7 " Notmuch is free software: you can redistribute it and/or modify it
   8 " under the terms of the GNU General Public License as published by
   9 " the Free Software Foundation, either version 3 of the License, or
  10 " (at your option) any later version.
  11 "
  12 " Notmuch is distributed in the hope that it will be useful, but
  13 " WITHOUT ANY WARRANTY; without even the implied warranty of
  14 " MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 " General Public License for more details.
  16 "
  17 " You should have received a copy of the GNU General Public License
  18 " along with Notmuch.  If not, see <http://www.gnu.org/licenses/>.
  19 "
  20 " Authors: Bart Trojanowski <bart@jukie.net>
  21
  22 " --- configuration defaults {{{1
  23
  24 let s:notmuch_defaults = {
  25         \ 'g:notmuch_cmd':                           'notmuch'                    ,
  26         \
  27         \ 'g:notmuch_search_newest_first':           1                            ,
  28         \ 'g:notmuch_search_from_column_width':      20                           ,
  29         \
  30         \ 'g:notmuch_show_fold_signatures':          1                            ,
  31         \ 'g:notmuch_show_fold_citations':           1                            ,
  32         \ 'g:notmuch_show_fold_bodies':              0                            ,
  33         \ 'g:notmuch_show_fold_headers':             1                            ,
  34         \
  35         \ 'g:notmuch_show_message_begin_regexp':     '^\fmessage{'                ,
  36         \ 'g:notmuch_show_message_end_regexp':       '^\fmessage}'                ,
  37         \ 'g:notmuch_show_header_begin_regexp':      '^\fheader{'                 ,
  38         \ 'g:notmuch_show_header_end_regexp':        '^\fheader}'                 ,
  39         \ 'g:notmuch_show_body_begin_regexp':        '^\fbody{'                   ,
  40         \ 'g:notmuch_show_body_end_regexp':          '^\fbody}'                   ,
  41         \ 'g:notmuch_show_attachment_begin_regexp':  '^\fattachment{'             ,
  42         \ 'g:notmuch_show_attachment_end_regexp':    '^\fattachment}'             ,
  43         \ 'g:notmuch_show_part_begin_regexp':        '^\fpart{'                   ,
  44         \ 'g:notmuch_show_part_end_regexp':          '^\fpart}'                   ,
  45         \ 'g:notmuch_show_marker_regexp':            '^\f\\(message\\|header\\|body\\|attachment\\|part\\)[{}].*$',
  46         \
  47         \ 'g:notmuch_show_message_parse_regexp':     '\(id:[^ ]*\) depth:\([0-9]*\) filename:\(.*\)$',
  48         \ 'g:notmuch_show_tags_regexp':              '(\([^)]*\))$'               ,
  49         \
  50         \ 'g:notmuch_show_signature_regexp':         '^\(-- \?\|_\+\)$'           ,
  51         \ 'g:notmuch_show_signature_lines_max':      12                           ,
  52         \
  53         \ 'g:notmuch_show_citation_regexp':          '^\s*>'                      ,
  54         \ }
  55
  56 " defaults for g:notmuch_initial_search_words
  57 " override with: let g:notmuch_initial_search_words = [ ... ]
  58 let s:notmuch_initial_search_words_defaults = [
  59         \ 'tag:inbox and tag:unread',
  60         \ ]
  61
  62 " defaults for g:notmuch_show_headers
  63 " override with: let g:notmuch_show_headers = [ ... ]
  64 let s:notmuch_show_headers_defaults = [
  65         \ 'Subject',
  66         \ 'To',
  67         \ 'Cc',
  68         \ 'Bcc',
  69         \ 'Date',
  70         \ ]
  71
  72 " defaults for g:notmuch_folders
  73 " override with: let g:notmuch_folders = [ ... ]
  74 let s:notmuch_folders_defaults = [
  75         \ [ 'new',    'tag:inbox and tag:unread' ],
  76         \ [ 'inbox',  'tag:inbox'                ],
  77         \ [ 'unread', 'tag:unread'               ],
  78         \ ]
  79
  80 " --- keyboard mapping definitions {{{1
  81
  82 " --- --- bindings for folders mode {{{2
  83
  84 let g:notmuch_folders_maps = {
  85         \ 's':          ':call <SID>NM_search_prompt()<CR>',
  86         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
  87         \ '=':          ':call <SID>NM_folders_refresh_view()<CR>',
  88         \ '<Enter>':    ':call <SID>NM_folders_show_search()<CR>',
  89         \ }
  90
  91 " --- --- bindings for search screen {{{2
  92 let g:notmuch_search_maps = {
  93         \ '<Enter>':    ':call <SID>NM_search_show_thread()<CR>',
  94         \ 'a':          ':call <SID>NM_search_archive_thread()<CR>',
  95         \ 'f':          ':call <SID>NM_search_filter()<CR>',
  96         \ 'm':          ':call <SID>NM_new_mail()<CR>',
  97         \ 'o':          ':call <SID>NM_search_toggle_order()<CR>',
  98         \ 'r':          ':call <SID>NM_search_reply_to_thread()<CR>',
  99         \ 's':          ':call <SID>NM_search_prompt()<CR>',
 100         \ 'S':          ':call <SID>NM_search_edit()<CR>',
 101         \ 't':          ':call <SID>NM_search_filter_by_tag()<CR>',
 102         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
 103         \ '+':          ':call <SID>NM_search_add_tags([])<CR>',
 104         \ '-':          ':call <SID>NM_search_remove_tags([])<CR>',
 105         \ '=':          ':call <SID>NM_search_refresh_view()<CR>',
 106         \ }
 107
 108 " --- --- bindings for show screen {{{2
 109 let g:notmuch_show_maps = {
 110         \ '<C-P>':      ':call <SID>NM_show_previous(1)<CR>',
 111         \ '<C-N>':      ':call <SID>NM_show_next(1)<CR>',
 112         \ 'q':          ':call <SID>NM_kill_this_buffer()<CR>',
 113         \
 114         \ 'b':          ':call <SID>NM_show_fold_toggle(''b'', ''bdy'', !g:notmuch_show_fold_bodies)<CR>',
 115         \ 'c':          ':call <SID>NM_show_fold_toggle(''c'', ''cit'', !g:notmuch_show_fold_citations)<CR>',
 116         \ 'h':          ':call <SID>NM_show_fold_toggle(''h'', ''hdr'', !g:notmuch_show_fold_headers)<CR>',
 117         \ 's':          ':call <SID>NM_show_fold_toggle(''s'', ''sig'', !g:notmuch_show_fold_signatures)<CR>',
 118         \
 119         \ 'a':          ':call <SID>NM_show_archive_thread()<CR>',
 120         \ 'A':          ':call <SID>NM_show_mark_read_then_archive_thread()<CR>',
 121         \ 'N':          ':call <SID>NM_show_mark_read_then_next_open_message()<CR>',
 122         \ 'v':          ':call <SID>NM_show_view_all_mime_parts()<CR>',
 123         \ '+':          ':call <SID>NM_show_add_tag()<CR>',
 124         \ '-':          ':call <SID>NM_show_remove_tag()<CR>',
 125         \ '<Space>':    ':call <SID>NM_show_advance_marking_read_and_archiving()<CR>',
 126         \ '\|':         ':call <SID>NM_show_pipe_message()<CR>',
 127         \
 128         \ 'r':          ':call <SID>NM_show_reply()<CR>',
 129         \ 'm':          ':call <SID>NM_new_mail()<CR>',
 130         \ }
 131
 132
 133 " --- implement folders screen {{{1
 134
 135 function! s:NM_cmd_folders(words)
 136         if len(a:words)
 137                 echoe 'Not exapecting any arguments for folders command.'
 138         endif
 139         let cmd = ['count']
 140         let disp = []
 141         let searches = []
 142         for entry in g:notmuch_folders
 143                 let [ name, search ] = entry
 144                 let data = s:NM_run(cmd + [search])
 145                 let cnt = matchlist(data, '\(\d\+\)')[1]
 146                 call add(disp, printf('%9d %-20s (%s)', cnt, name, search))
 147                 call add(searches, search)
 148         endfor
 149
 150         call <SID>NM_newBuffer('folders', join(disp, "\n"))
 151         let b:nm_searches = searches
 152         let b:nm_timestamp = reltime()
 153
 154         call <SID>NM_cmd_folders_mksyntax()
 155         call <SID>NM_set_map(g:notmuch_folders_maps)
 156         setlocal cursorline
 157         setlocal nowrap
 158 endfunction
 159
 160 function! s:NM_cmd_folders_mksyntax()
 161 endfunction
 162
 163 " --- --- folders screen action functions {{{2
 164
 165 function! s:NM_folders_refresh_view()
 166         let lno = line('.')
 167         setlocal bufhidden=delete
 168         call s:NM_cmd_folders([])
 169         exec printf('norm %dG', lno)
 170 endfunction
 171
 172 function! s:NM_folders_show_search()
 173         let line = line('.')
 174         let search = b:nm_searches[line-1]
 175
 176         let prev_bufnr = bufnr('%')
 177         setlocal bufhidden=hide
 178         call <SID>NM_cmd_search([search])
 179         setlocal bufhidden=delete
 180         let b:nm_prev_bufnr = prev_bufnr
 181 endfunction
 182
 183
 184 " --- implement search screen {{{1
 185
 186 function! s:NM_cmd_search(words)
 187         let cmd = ['search']
 188         if g:notmuch_search_newest_first
 189                 let cmd = cmd + ['--sort=newest-first']
 190         else
 191                 let cmd = cmd + ['--sort=oldest-first']
 192         endif
 193         let data = s:NM_run(cmd + a:words)
 194         let lines = split(data, "\n")
 195         let disp = copy(lines)
 196         call map(disp, 's:NM_cmd_search_fmtline(v:val)')
 197
 198         call <SID>NM_newBuffer('search', join(disp, "\n"))
 199         let b:nm_raw_lines = lines
 200         let b:nm_search_words = a:words
 201
 202         call <SID>NM_cmd_search_mksyntax()
 203         call <SID>NM_set_map(g:notmuch_search_maps)
 204         setlocal cursorline
 205         setlocal nowrap
 206 endfunction
 207 function! s:NM_cmd_search_fmtline(line)
 208         let m = matchlist(a:line, '^\(thread:\S\+\)\s\([^]]\+\]\) \([^;]\+\); \(.*\) (\([^(]*\))$')
 209         if !len(m)
 210                 return 'ERROR PARSING: ' . a:line
 211         endif
 212         let max = g:notmuch_search_from_column_width
 213         let from = m[3]
 214         if strlen(from) >= max
 215                 let from = substitute(m[3][0:max-4], '[^A-Za-z1-9_]*$', '', '') . '...'
 216         endif
 217         return printf('%s %-20s | %s (%s)', m[2], from, m[4], m[5])
 218 endfunction
 219 function! s:NM_cmd_search_mksyntax()
 220         syntax clear nmSearchFrom
 221         "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         if b:nm_type == 'search'
 245                 " TODO: we intend to replace the current buffer,
 246                 "       ... maybe we could just clear it
 247                 let prev_bufnr = b:nm_prev_bufnr
 248                 setlocal bufhidden=delete
 249         else
 250                 let prev_bufnr = bufnr('%')
 251                 setlocal bufhidden=hide
 252         endif
 253         call <SID>NM_cmd_search(tags)
 254         setlocal bufhidden=delete
 255         let b:nm_prev_bufnr = prev_bufnr
 256 endfunction
 257
 258 function! s:NM_search_edit()
 259         " TODO: input() can support completion
 260         let text = input('NotMuch Search: ', join(b:nm_search_words, ' '))
 261         if strlen(text)
 262                 call <SID>NM_cmd_search(split(text))
 263         endif
 264 endfunction
 265
 266 function! s:NM_search_archive_thread()
 267         call <SID>NM_add_remove_tags_on_screen('-', ['inbox'])
 268         call <SID>NM_add_remove_tags('-', ['inbox'])
 269         norm j
 270 endfunction
 271
 272 function! s:NM_search_filter()
 273         call <SID>NM_search_filter_helper('Filter: ', '')
 274 endfunction
 275
 276 function! s:NM_search_filter_by_tag()
 277         call <SID>NM_search_filter_helper('Filter Tag(s): ', 'tag:')
 278 endfunction
 279
 280 function! s:NM_search_filter_helper(prompt, prefix)
 281         " TODO: input() can support completion
 282         let text = input(a:prompt)
 283         if !strlen(text)
 284                 return
 285         endif
 286
 287         let tags = split(text)
 288         map(tags, 'and a:prefix . v:val')
 289         let tags = b:nm_search_words + tags
 290         echo tags
 291
 292         let prev_bufnr = bufnr('%')
 293         setlocal bufhidden=hide
 294         call <SID>NM_cmd_search(tags)
 295         setlocal bufhidden=delete
 296         let b:nm_prev_bufnr = prev_bufnr
 297 endfunction
 298
 299 function! s:NM_search_toggle_order()
 300         let g:notmuch_search_newest_first = !g:notmuch_search_newest_first
 301         " FIXME: maybe this would be better done w/o reading re-reading the lines
 302         "         reversing the b:nm_raw_lines and the buffer lines would be better
 303         call <SID>NM_search_refresh_view()
 304 endfunction
 305
 306 function! s:NM_search_reply_to_thread()
 307         echo 'not implemented'
 308 endfunction
 309
 310 function! s:NM_search_add_tags(tags)
 311         call <SID>NM_search_add_remove_tags('Add Tag(s): ', '+', a:tags)
 312 endfunction
 313
 314 function! s:NM_search_remove_tags(tags)
 315         call <SID>NM_search_add_remove_tags('Remove Tag(s): ', '-', a:tags)
 316 endfunction
 317
 318 function! s:NM_search_refresh_view()
 319         let lno = line('.')
 320         setlocal bufhidden=delete
 321         call <SID>NM_cmd_search(b:nm_search_words)
 322         " FIXME: should find the line of the thread we were on if possible
 323         exec printf('norm %dG', lno)
 324 endfunction
 325
 326 " --- --- search screen helper functions {{{2
 327
 328 function! s:NM_search_find_thread_id()
 329         if !exists('b:nm_raw_lines')
 330                 echoe 'no b:nm_raw_lines'
 331                 return ''
 332         else
 333                 let line = line('.')
 334                 let info = b:nm_raw_lines[line-1]
 335                 let what = split(info, '\s\+')[0]
 336                 return what
 337         endif
 338 endfunction
 339
 340 function! s:NM_search_add_remove_tags(prompt, prefix, intags)
 341         if type(a:intags) != type([]) || len(a:intags) == 0
 342                 " TODO: input() can support completion
 343                 let text = input(a:prompt)
 344                 if !strlen(text)
 345                         return
 346                 endif
 347                 let tags = split(text, ' ')
 348         else
 349                 let tags = a:intags
 350         endif
 351         call <SID>NM_add_remove_tags(a:prefix, tags)
 352         call <SID>NM_add_remove_tags_on_screen(a:prefix, tags)
 353 endfunction
 354
 355 " --- implement show screen {{{1
 356
 357 function! s:NM_cmd_show(words)
 358         let prev_bufnr = bufnr('%')
 359         let data = s:NM_run(['show'] + a:words)
 360         let lines = split(data, "\n")
 361
 362         let info = s:NM_cmd_show_parse(lines)
 363
 364         setlocal bufhidden=hide
 365         call <SID>NM_newBuffer('show', join(info['disp'], "\n"))
 366         setlocal bufhidden=delete
 367         let b:nm_raw_info = info
 368         let b:nm_prev_bufnr = prev_bufnr
 369
 370         call <SID>NM_cmd_show_mkfolds()
 371         call <SID>NM_cmd_show_mksyntax()
 372         call <SID>NM_set_map(g:notmuch_show_maps)
 373         setlocal foldtext=NM_cmd_show_foldtext()
 374         setlocal fillchars=
 375         setlocal foldcolumn=6
 376
 377 endfunction
 378
 379 function! s:NM_show_previous(can_change_thread)
 380         let info = b:nm_raw_info
 381         let lnum = line('.')
 382         for msg in reverse(copy(info['msgs']))
 383                 if lnum <= msg['start']
 384                         continue
 385                 endif
 386
 387                 exec printf('norm %dG', msg['start'])
 388                 " TODO: try to fit the message on screen
 389                 norm zz
 390                 return
 391         endfor
 392         if !a:can_change_thread
 393                 return
 394         endif
 395         call <SID>NM_kill_this_buffer()
 396         if line('.') != line('0')
 397                 norm k
 398                 call <SID>NM_search_show_thread()
 399                 norm G
 400                 call <SID>NM_show_previous(0)
 401         else
 402                 echo 'No more messages.'
 403         endif
 404 endfunction
 405
 406 function! s:NM_show_next(can_change_thread)
 407         let info = b:nm_raw_info
 408         let lnum = line('.')
 409         for msg in info['msgs']
 410                 if lnum >= msg['start']
 411                         continue
 412                 endif
 413
 414                 exec printf('norm %dG', msg['start'])
 415                 " TODO: try to fit the message on screen
 416                 norm zz
 417                 return
 418         endfor
 419         if !a:can_change_thread
 420                 return
 421         endif
 422         call <SID>NM_kill_this_buffer()
 423         if line('.') != line('$')
 424                 norm j
 425                 call <SID>NM_search_show_thread()
 426         else
 427                 echo 'No more messages.'
 428         endif
 429 endfunction
 430
 431 function! s:NM_show_archive_thread()
 432         echo 'not implemented'
 433 endfunction
 434
 435 function! s:NM_show_mark_read_then_archive_thread()
 436         echo 'not implemented'
 437 endfunction
 438
 439 function! s:NM_show_next_message()
 440         echo 'not implemented'
 441 endfunction
 442
 443 function! s:NM_show_mark_read_then_next_open_message()
 444         echo 'not implemented'
 445 endfunction
 446
 447 function! s:NM_show_previous_message()
 448         echo 'not implemented'
 449 endfunction
 450
 451 function! s:NM_show_reply()
 452         echo 'not implemented'
 453 endfunction
 454
 455 function! s:NM_show_view_all_mime_parts()
 456         echo 'not implemented'
 457 endfunction
 458
 459 function! s:NM_show_view_raw_message()
 460         echo 'not implemented'
 461 endfunction
 462
 463 function! s:NM_show_add_tag()
 464         echo 'not implemented'
 465 endfunction
 466
 467 function! s:NM_show_remove_tag()
 468         echo 'not implemented'
 469 endfunction
 470
 471 function! s:NM_show_advance_marking_read_and_archiving()
 472         echo 'not implemented'
 473 endfunction
 474
 475 function! s:NM_show_pipe_message()
 476         echo 'not implemented'
 477 endfunction
 478
 479 " --- --- search screen helper functions {{{2
 480
 481 function! s:NM_show_fold_toggle(key, type, fold)
 482         let info = b:nm_raw_info
 483         let act = 'open'
 484         if a:fold
 485                 let act = 'close'
 486         endif
 487         for fld in info['folds']
 488                 if fld[0] == a:type
 489                         exec printf('%dfold%s', fld[1], act)
 490                 endif
 491         endfor
 492         exec printf('nnoremap <buffer> %s :call <SID>NM_show_fold_toggle(''%s'', ''%s'', %d)<CR>', a:key, a:key, a:type, !a:fold)
 493 endfunction
 494
 495
 496 " s:NM_cmd_show_parse returns the following dictionary:
 497 "    'disp':     lines to display
 498 "    'msgs':     message info dicts { start, end, id, depth, filename, descr, header }
 499 "    'folds':    fold info arrays [ type, start, end ]
 500 "    'foldtext': fold text indexed by start line
 501 function! s:NM_cmd_show_parse(inlines)
 502         let info = { 'disp': [],
 503                    \ 'msgs': [],
 504                    \ 'folds': [],
 505                    \ 'foldtext': {} }
 506         let msg = {}
 507         let hdr = {}
 508
 509         let in_message = 0
 510         let in_header = 0
 511         let in_body = 0
 512         let in_part = ''
 513
 514         let body_start = -1
 515         let part_start = -1
 516
 517         let mode_type = ''
 518         let mode_start = -1
 519
 520         let inlnum = 0
 521         for line in a:inlines
 522                 let inlnum = inlnum + 1
 523                 let foldinfo = []
 524
 525                 if strlen(in_part)
 526                         let part_end = 0
 527
 528                         if match(line, g:notmuch_show_part_end_regexp) != -1
 529                                 let part_end = len(info['disp'])
 530                         else
 531                                 call add(info['disp'], line)
 532                         endif
 533
 534                         if in_part == 'text/plain'
 535                                 if !part_end && mode_type == ''
 536                                         if match(line, g:notmuch_show_signature_regexp) != -1
 537                                                 let mode_type = 'sig'
 538                                                 let mode_start = len(info['disp'])
 539                                         elseif match(line, g:notmuch_show_citation_regexp) != -1
 540                                                 let mode_type = 'cit'
 541                                                 let mode_start = len(info['disp'])
 542                                         endif
 543                                 elseif mode_type == 'cit'
 544                                         if part_end || match(line, g:notmuch_show_citation_regexp) == -1
 545                                                 let outlnum = len(info['disp'])
 546                                                 if mode_start != outlnum
 547                                                         let foldinfo = [ mode_type, mode_start, outlnum-1,
 548                                                                        \ printf('[ %d-line citation.  Press "c" to show. ]', outlnum - mode_start) ]
 549                                                 endif
 550                                                 let mode_type = ''
 551                                         endif
 552                                 elseif mode_type == 'sig'
 553                                         let outlnum = len(info['disp'])
 554                                         if (outlnum - mode_start) > g:notmuch_show_signature_lines_max
 555                                                 let mode_type = ''
 556                                         elseif part_end
 557                                                 if mode_start != outlnum
 558                                                         let foldinfo = [ mode_type, mode_start, outlnum-1,
 559                                                                        \ printf('[ %d-line signature.  Press "s" to show. ]', outlnum - mode_start) ]
 560                                                 endif
 561                                                 let mode_type = ''
 562                                         endif
 563                                 endif
 564                         endif
 565
 566                         if part_end
 567                                 " FIXME: this is a hack for handling two folds being added for one line
 568                                 "         we should handle addinga fold in a function
 569                                 if len(foldinfo)
 570                                         call add(info['folds'], foldinfo[0:2])
 571                                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 572                                 endif
 573
 574                                 let foldinfo = [ 'text', part_start, part_end,
 575                                                \ printf('[ %d-line %s.  Press "p" to show. ]', part_end - part_start, in_part) ]
 576                                 let in_part = ''
 577                                 call add(info['disp'], '')
 578                         endif
 579
 580                 elseif in_body
 581                         if !has_key(msg,'body_start')
 582                                 let msg['body_start'] = len(info['disp']) + 1
 583                         endif
 584                         if match(line, g:notmuch_show_body_end_regexp) != -1
 585                                 let body_end = len(info['disp'])
 586                                 let foldinfo = [ 'bdy', body_start, body_end,
 587                                                \ printf('[ BODY %d - %d lines ]', len(info['msgs']), body_end - body_start) ]
 588
 589                                 let in_body = 0
 590
 591                         elseif match(line, g:notmuch_show_part_begin_regexp) != -1
 592                                 let m = matchlist(line, 'ID: \(\d\+\), Content-type: \(\S\+\)')
 593                                 let in_part = 'unknown'
 594                                 if len(m)
 595                                         let in_part = m[2]
 596                                 endif
 597                                 call add(info['disp'],
 598                                          \ printf('--- %s ---', in_part))
 599                                 let part_start = len(info['disp']) + 1
 600                         endif
 601
 602                 elseif in_header
 603                         if in_header == 1
 604                                 let msg['descr'] = line
 605                                 call add(info['disp'], line)
 606                                 let in_header = 2
 607                                 let msg['hdr_start'] = len(info['disp']) + 1
 608
 609                         else
 610                                 if match(line, g:notmuch_show_header_end_regexp) != -1
 611                                         let hdr_start = msg['hdr_start']+1
 612                                         let hdr_end = len(info['disp'])
 613                                         let foldinfo = [ 'hdr', hdr_start, hdr_end,
 614                                                \ printf('[ %d-line headers.  Press "h" to show. ]', hdr_end + 1 - hdr_start) ]
 615                                         let msg['header'] = hdr
 616                                         let in_header = 0
 617                                         let hdr = {}
 618                                 else
 619                                         let m = matchlist(line, '^\(\w\+\):\s*\(.*\)$')
 620                                         if len(m)
 621                                                 let hdr[m[1]] = m[2]
 622                                                 if match(g:notmuch_show_headers, m[1]) != -1
 623                                                         call add(info['disp'], line)
 624                                                 endif
 625                                         endif
 626                                 endif
 627                         endif
 628
 629                 elseif in_message
 630                         if match(line, g:notmuch_show_message_end_regexp) != -1
 631                                 let msg['end'] = len(info['disp'])
 632                                 call add(info['disp'], '')
 633
 634                                 let foldinfo = [ 'msg', msg['start'], msg['end'],
 635                                                \ printf('[ MSG %d - %s ]', len(info['msgs']), msg['descr']) ]
 636
 637                                 call add(info['msgs'], msg)
 638                                 let msg = {}
 639                                 let in_message = 0
 640                                 let in_header = 0
 641                                 let in_body = 0
 642                                 let in_part = ''
 643
 644                         elseif match(line, g:notmuch_show_header_begin_regexp) != -1
 645                                 let in_header = 1
 646                                 continue
 647
 648                         elseif match(line, g:notmuch_show_body_begin_regexp) != -1
 649                                 let body_start = len(info['disp']) + 1
 650                                 let in_body = 1
 651                                 continue
 652                         endif
 653
 654                 else
 655                         if match(line, g:notmuch_show_message_begin_regexp) != -1
 656                                 let msg['start'] = len(info['disp']) + 1
 657
 658                                 let m = matchlist(line, g:notmuch_show_message_parse_regexp)
 659                                 if len(m)
 660                                         let msg['id'] = m[1]
 661                                         let msg['depth'] = m[2]
 662                                         let msg['filename'] = m[3]
 663                                 endif
 664
 665                                 let in_message = 1
 666                         endif
 667                 endif
 668
 669                 if len(foldinfo)
 670                         call add(info['folds'], foldinfo[0:2])
 671                         let info['foldtext'][foldinfo[1]] = foldinfo[3]
 672                 endif
 673         endfor
 674         return info
 675 endfunction
 676
 677 function! s:NM_cmd_show_mkfolds()
 678         let info = b:nm_raw_info
 679
 680         for afold in info['folds']
 681                 exec printf('%d,%dfold', afold[1], afold[2])
 682                 if (afold[0] == 'sig' && g:notmuch_show_fold_signatures)
 683                  \ || (afold[0] == 'cit' && g:notmuch_show_fold_citations)
 684                  \ || (afold[0] == 'bdy' && g:notmuch_show_fold_bodies)
 685                  \ || (afold[0] == 'hdr' && g:notmuch_show_fold_headers)
 686                         exec printf('%dfoldclose', afold[1])
 687                 else
 688                         exec printf('%dfoldopen', afold[1])
 689                 endif
 690         endfor
 691 endfunction
 692
 693 function! s:NM_cmd_show_mksyntax()
 694         let info = b:nm_raw_info
 695         let cnt = 0
 696         for msg in info['msgs']
 697                 let cnt = cnt + 1
 698                 let start = msg['start']
 699                 let hdr_start = msg['hdr_start']
 700                 let body_start = msg['body_start']
 701                 let end = msg['end']
 702                 exec printf('syntax region nmShowMsg%dDesc start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgDesc', cnt, start, start+1)
 703                 exec printf('syntax region nmShowMsg%dHead start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgHead', cnt, hdr_start, body_start)
 704                 exec printf('syntax region nmShowMsg%dBody start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgBody', cnt, body_start, end)
 705         endfor
 706 endfunction
 707
 708 function! NM_cmd_show_foldtext()
 709         let foldtext = b:nm_raw_info['foldtext']
 710         return foldtext[v:foldstart]
 711 endfunction
 712
 713
 714 " --- notmuch helper functions {{{1
 715
 716 function! s:NM_newBuffer(type, content)
 717         enew
 718         setlocal buftype=nofile readonly modifiable
 719         silent put=a:content
 720         keepjumps 0d
 721         setlocal nomodifiable
 722         execute printf('set filetype=notmuch-%s', a:type)
 723         execute printf('set syntax=notmuch-%s', a:type)
 724         let b:nm_type = a:type
 725 endfunction
 726
 727 function! s:NM_run(args)
 728         let cmd = g:notmuch_cmd . ' ' . join(a:args) . '< /dev/null'
 729
 730         let start = reltime()
 731         let out = system(cmd)
 732         let err = v:shell_error
 733         let delta = reltime(start)
 734
 735         echo printf('[%s] {%s} %s', reltimestr(delta), string(err), string(cmd))
 736
 737         if err
 738                 echohl Error
 739                 echo substitute(out, '\n*$', '', '')
 740                 echohl None
 741                 return ''
 742         else
 743                 return out
 744         endif
 745 endfunction
 746
 747 " --- external mail handling helpers {{{1
 748
 749 function! s:NM_new_mail()
 750         echo 'not implemented'
 751 endfunction
 752
 753 " --- other helpers {{{1
 754
 755 function! s:NM_kill_this_buffer()
 756         if exists('b:nm_prev_bufnr')
 757                 setlocal bufhidden=delete
 758                 exec printf(":buffer %d", b:nm_prev_bufnr)
 759         else
 760                 echo "Nothing to kill."
 761         endif
 762 endfunction
 763
 764 function! s:NM_add_remove_tags(prefix, tags)
 765         let id = <SID>NM_search_find_thread_id()
 766         if id == ''
 767                 echoe 'Eeek! I couldn''t find the thead id!'
 768         endif
 769         call map(a:tags, 'a:prefix . v:val')
 770         " TODO: handle errors
 771         call <SID>NM_run(['tag'] + a:tags + ['--', id])
 772 endfunction
 773
 774 function! s:NM_add_remove_tags_on_screen(prefix, tags)
 775         let online = ''
 776         setlocal modifiable
 777         if a:prefix == '-'
 778                 for tagname in a:tags
 779                         exec printf('silent %ss/(\([^)]*\)\<%s\>\([^)]*\))$/(\1\2)/', online, tagname)
 780                 endfor
 781         else
 782                 for tagname in a:tags
 783                         exec printf('silent %ss/(\([^)]*\)\([^)]*\))$/(\1 %s)/', online, tagname)
 784                 endfor
 785         endif
 786         setlocal nomodifiable
 787 endfunction
 788
 789 " --- process and set the defaults {{{1
 790
 791 function! NM_set_defaults(force)
 792         for [key, dflt] in items(s:notmuch_defaults)
 793                 let cmd = ''
 794                 if !a:force && exists(key) && type(dflt) == type(eval(key))
 795                         continue
 796                 elseif type(dflt) == type(0)
 797                         let cmd = printf('let %s = %d', key, dflt)
 798                 elseif type(dflt) == type('')
 799                         let cmd = printf('let %s = ''%s''', key, dflt)
 800                 "elseif type(dflt) == type([])
 801                 "        let cmd = printf('let %s = %s', key, string(dflt))
 802                 else
 803                         echoe printf('E: Unknown type in NM_set_defaults(%d) using [%s,%s]',
 804                                                 \ a:force, key, string(dflt))
 805                         continue
 806                 endif
 807                 exec cmd
 808         endfor
 809 endfunction
 810 call NM_set_defaults(0)
 811
 812 " for some reason NM_set_defaults() didn't work for arrays...
 813 if !exists('g:notmuch_show_headers')
 814         let g:notmuch_show_headers = s:notmuch_show_headers_defaults
 815 endif
 816 if !exists('g:notmuch_initial_search_words')
 817         let g:notmuch_initial_search_words = s:notmuch_initial_search_words_defaults
 818 endif
 819 if !exists('g:notmuch_folders')
 820         let g:notmuch_folders = s:notmuch_folders_defaults
 821 endif
 822
 823
 824 " --- assign keymaps {{{1
 825
 826 function! s:NM_set_map(maps)
 827         nmapclear
 828         for [key, code] in items(a:maps)
 829                 exec printf('nnoremap <buffer> %s %s', key, code)
 830         endfor
 831         " --- this is a hack for development :)
 832         nnoremap ,nmr :source ~/.vim/plugin/notmuch.vim<CR>:call NotMuch('')<CR>
 833 endfunction
 834
 835 " --- command handler {{{1
 836
 837 function! NotMuch(args)
 838         let args = a:args
 839         if !strlen(args)
 840                 let args = 'folders'
 841         endif
 842
 843         let words = split(args)
 844         if words[0] == 'folders'
 845                 let words = words[1:]
 846                 call <SID>NM_cmd_folders(words)
 847         elseif words[0] == 'search'
 848                 if len(words) > 1
 849                         let words = words[1:]
 850                 elseif exists('b:nm_search_words')
 851                         let words = b:nm_search_words
 852                 else
 853                         let words = g:notmuch_initial_search_words
 854                 endif
 855                 call <SID>NM_cmd_search(words)
 856
 857         elseif words[0] == 'show'
 858                 echoe 'show is not yet implemented.'
 859         endif
 860 endfunction
 861 function! CompleteNotMuch(arg_lead, cmd_line, cursor_pos)
 862         return []
 863 endfunction
 864
 865
 866 " --- glue {{{1
 867
 868 command! -nargs=* -complete=customlist,CompleteNotMuch NotMuch call NotMuch(<q-args>)
 869 cabbrev  notmuch <c-r>=(getcmdtype()==':' && getcmdpos()==1 ? 'NotMuch' : 'notmuch')<CR>
 870
 871 " vim: set ft=vim ts=8 sw=8 et foldmethod=marker :