" notmuch.vim plugin --- run notmuch within vim
"
" Copyright © Carl Worth
"
" This file is part of Notmuch.
"
" Notmuch is free software: you can redistribute it and/or modify it
" under the terms of the GNU General Public License as published by
" the Free Software Foundation, either version 3 of the License, or
" (at your option) any later version.
"
" Notmuch is distributed in the hope that it will be useful, but
" WITHOUT ANY WARRANTY; without even the implied warranty of
" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
" General Public License for more details.
"
" You should have received a copy of the GNU General Public License
" along with Notmuch. If not, see .
"
" Authors: Bart Trojanowski
" --- defaults
if !exists('g:notmuch_cmd')
let g:notmuch_cmd = 'notmuch'
endif
if !exists('g:notmuch_search_reverse')
let g:notmuch_search_reverse = 1
endif
" --- used to match output of notmuch
let s:notmuch_show_message_begin_regexp = '^ message{'
let s:notmuch_show_message_end_regexp = '^ message}'
let s:notmuch_show_header_begin_regexp = '^ header{'
let s:notmuch_show_header_end_regexp = '^ header}'
let s:notmuch_show_body_begin_regexp = '^ body{'
let s:notmuch_show_body_end_regexp = '^ body}'
let s:notmuch_show_attachment_begin_regexp = '^ attachment{'
let s:notmuch_show_attachment_end_regexp = '^ attachment}'
let s:notmuch_show_part_begin_regexp = '^ part{'
let s:notmuch_show_part_end_regexp = '^ part}'
let s:notmuch_show_marker_regexp = '^ \\(message\\|header\\|body\\|attachment\\|part\\)[{}].*$'
let s:notmuch_show_message_parse_regexp = '\(id:[^ ]*\) depth:\([0-9]*\) filename:\(.*\)$'
let s:notmuch_show_tags_regexp = '(\([^)]*\))$'
let s:notmuch_show_signature_regexp = '^\(-- \?\|_\+\)$'
let s:notmuch_show_signature_lines_max = 12
let s:notmuch_show_citation_regexp = '^\s*>'
let s:notmuch_show_headers = [ 'Subject', 'From' ]
let s:notmuch_show_fold_signatures = 1
let s:notmuch_show_fold_citations = 1
" --- implement search screen
function! s:NM_cmd_search(words)
let cmd = ['search']
if g:notmuch_search_reverse
let cmd = cmd + ['--reverse']
endif
let data = s:NM_run(cmd + a:words)
"let data = substitute(data, '27/27', '25/27', '')
"let data = substitute(data, '\[4/4\]', '[0/4]', '')
let lines = split(data, "\n")
let disp = copy(lines)
call map(disp, 'substitute(v:val, "^thread:\\S* ", "", "")' )
call s:NM_newBuffer('search', join(disp, "\n"))
let b:nm_raw_lines = lines
nnoremap :call NM_search_display()
nnoremap s :call NM_cmd_search(split(input('NotMuch Search:')))
setlocal cursorline
setlocal nowrap
endfunction
function! s:NM_search_display()
if !exists('b:nm_raw_lines')
echo 'no b:nm_raw_lines'
else
let line = line('.')
let info = b:nm_raw_lines[line-1]
let what = split(info, '\s\+')[0]
call s:NM_cmd_show([what])
endif
endfunction
" --- implement show screen
function! s:NM_cmd_show(words)
let bufnr = bufnr('%')
let data = s:NM_run(['show'] + a:words)
let lines = split(data, "\n")
let info = s:NM_cmd_show_parse(lines)
call s:NM_newBuffer('show', join(info['disp'], "\n"))
setlocal bufhidden=delete
let b:nm_raw_info = info
call s:NM_cmd_show_mkfolds()
call s:NM_cmd_show_mksyntax()
setlocal foldtext=NM_cmd_show_foldtext()
setlocal fillchars=
setlocal foldcolumn=6
exec printf("nnoremap q :b %d", bufnr)
endfunction
" s:NM_cmd_show_parse returns the following dictionary:
" 'disp': lines to display
" 'msgs': message info dicts { start, end, id, depth, filename, descr, header }
" 'folds': fold info arrays [ type, start, end ]
" 'foldtext': fold text indexed by start line
function! s:NM_cmd_show_parse(inlines)
let info = { 'disp': [],
\ 'msgs': [],
\ 'folds': [],
\ 'foldtext': {} }
let msg = {}
let hdr = {}
let in_message = 0
let in_header = 0
let in_body = 0
let in_part = ''
let body_start = -1
let part_start = -1
let mode_type = ''
let mode_start = -1
let inlnum = 0
for line in a:inlines
let inlnum = inlnum + 1
let foldinfo = []
if strlen(in_part)
let part_end = 0
if match(line, s:notmuch_show_part_end_regexp) != -1
let part_end = len(info['disp'])
else
call add(info['disp'], line)
endif
if in_part == 'text/plain'
if !part_end && mode_type == ''
if match(line, s:notmuch_show_signature_regexp) != -1
let mode_type = 'sig'
let mode_start = len(info['disp'])
elseif match(line, s:notmuch_show_citation_regexp) != -1
let mode_type = 'cit'
let mode_start = len(info['disp'])
endif
elseif mode_type == 'cit'
if part_end || match(line, s:notmuch_show_citation_regexp) == -1
let outlnum = len(info['disp']) -1
let foldinfo = [ mode_type, mode_start, outlnum,
\ printf('[ %d-line citation. Press "c" to show. ]', outlnum - mode_start) ]
let mode_type = ''
endif
elseif mode_type == 'sig'
let outlnum = len(info['disp'])
if (outlnum - mode_start) > s:notmuch_show_signature_lines_max
echoe 'line ' . outlnum . ' stopped matching'
let mode_type = ''
elseif part_end
let foldinfo = [ mode_type, mode_start, outlnum,
\ printf('[ %d-line signature. Press "s" to show. ]', outlnum - mode_start) ]
let mode_type = ''
endif
endif
endif
if part_end
" FIXME: this is a hack for handling two folds being added for one line
" we should handle addinga fold in a function
if len(foldinfo)
call add(info['folds'], foldinfo[0:2])
let info['foldtext'][foldinfo[1]] = foldinfo[3]
endif
let foldinfo = [ 'text', part_start, part_end,
\ printf('[ %d-line %s. Press "p" to show. ]', part_end - part_start, in_part) ]
let in_part = ''
call add(info['disp'], '')
endif
elseif in_body
if !has_key(msg,'body_start')
let msg['body_start'] = len(info['disp']) + 1
endif
if match(line, s:notmuch_show_body_end_regexp) != -1
let body_end = len(info['disp'])
let foldinfo = [ 'body', body_start, body_end,
\ printf('[ BODY %d - %d lines ]', len(info['msgs']), body_end - body_start) ]
let in_body = 0
elseif match(line, s:notmuch_show_part_begin_regexp) != -1
let m = matchlist(line, 'ID: \(\d\+\), Content-type: \(\S\+\)')
let in_part = 'unknown'
if len(m)
let in_part = m[2]
endif
call add(info['disp'],
\ printf('--- %s ---', in_part))
let part_start = len(info['disp']) + 1
endif
elseif in_header
if in_header == 1
let msg['descr'] = line
call add(info['disp'], line)
let in_header = 2
let msg['hdr_start'] = len(info['disp']) + 1
else
if match(line, s:notmuch_show_header_end_regexp) != -1
let msg['header'] = hdr
let in_header = 0
let hdr = {}
else
let m = matchlist(line, '^\(\w\+\):\s*\(.*\)$')
if len(m)
let hdr[m[1]] = m[2]
if match(s:notmuch_show_headers, m[1]) != -1
call add(info['disp'], line)
endif
endif
endif
endif
elseif in_message
if match(line, s:notmuch_show_message_end_regexp) != -1
let msg['end'] = len(info['disp'])
call add(info['disp'], '')
let foldinfo = [ 'match', msg['start'], msg['end'],
\ printf('[ MSG %d - %s ]', len(info['msgs']), msg['descr']) ]
call add(info['msgs'], msg)
let msg = {}
let in_message = 0
let in_header = 0
let in_body = 0
let in_part = ''
elseif match(line, s:notmuch_show_header_begin_regexp) != -1
let in_header = 1
continue
elseif match(line, s:notmuch_show_body_begin_regexp) != -1
let body_start = len(info['disp']) + 1
let in_body = 1
continue
endif
else
if match(line, s:notmuch_show_message_begin_regexp) != -1
let msg['start'] = len(info['disp']) + 1
let m = matchlist(line, s:notmuch_show_message_parse_regexp)
if len(m)
let msg['id'] = m[1]
let msg['depth'] = m[2]
let msg['filename'] = m[3]
endif
let in_message = 1
endif
endif
if len(foldinfo)
call add(info['folds'], foldinfo[0:2])
let info['foldtext'][foldinfo[1]] = foldinfo[3]
endif
endfor
return info
endfunction
function! s:NM_cmd_show_mkfolds()
let info = b:nm_raw_info
for afold in info['folds']
exec printf('%d,%dfold', afold[1], afold[2])
if (afold[0] == 'sig' && s:notmuch_show_fold_signatures)
\ || (afold[0] == 'cit' && s:notmuch_show_fold_citations)
exec printf('%dfoldclose', afold[1])
else
exec printf('%dfoldopen', afold[1])
endif
endfor
endfunction
function! s:NM_cmd_show_mksyntax()
let info = b:nm_raw_info
let cnt = 0
for msg in info['msgs']
let cnt = cnt + 1
let start = msg['start']
let hdr_start = msg['hdr_start']
let body_start = msg['body_start']
let end = msg['end']
exec printf('syntax region nmShowMsg%dDesc start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgDesc', cnt, start, start+1)
exec printf('syntax region nmShowMsg%dHead start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgHead', cnt, hdr_start, body_start)
exec printf('syntax region nmShowMsg%dBody start=''\%%%dl'' end=''\%%%dl'' contains=@nmShowMsgBody', cnt, body_start, end)
endfor
endfunction
function! NM_cmd_show_foldtext()
let foldtext = b:nm_raw_info['foldtext']
return foldtext[v:foldstart]
endfunction
" --- helper functions
function! s:NM_newBuffer(ft, content)
enew
setlocal buftype=nofile readonly modifiable
silent put=a:content
keepjumps 0d
setlocal nomodifiable
execute printf('set filetype=notmuch-%s', a:ft)
execute printf('set syntax=notmuch-%s', a:ft)
endfunction
function! s:NM_run(args)
let cmd = g:notmuch_cmd . ' ' . join(a:args) . '< /dev/null'
let out = system(cmd)
if v:shell_error
echohl Error
echo substitute(out, '\n*$', '', '')
echohl None
return ''
else
return out
endif
endfunction
" --- command handler
function! NotMuch(args)
if !strlen(a:args)
call s:NM_cmd_search(['tag:inbox'])
return
endif
echo "blarg!"
let words = split(a:args)
" TODO: handle commands passed as arguments
endfunction
function! CompleteNotMuch(arg_lead, cmd_line, cursor_pos)
return []
endfunction
" --- glue
command! -nargs=* -complete=customlist,CompleteNotMuch NotMuch call NotMuch()
cabbrev notmuch =(getcmdtype()==':' && getcmdpos()==1 ? 'NotMuch' : 'notmuch')
" --- hacks, only for development :)
nnoremap ,nmr :source ~/.vim/plugin/notmuch.vim:call NotMuch('')