+ let b:nm_raw_info = info
+ let b:nm_prev_bufnr = prev_bufnr
+
+ call <SID>NM_cmd_show_mkfolds()
+ call <SID>NM_cmd_show_mksyntax()
+ call <SID>NM_set_map(g:notmuch_show_maps)
+ setlocal foldtext=NM_cmd_show_foldtext()
+ setlocal fillchars=
+ setlocal foldcolumn=6
+
+endfunction
+
+function! s:NM_show_prev(can_change_thread)
+ let info = b:nm_raw_info
+ let lnum = line('.')
+ for msg in reverse(copy(info['msgs']))
+ if lnum <= msg['start']
+ continue
+ endif
+
+ exec printf('norm %dG', msg['start'])
+ " TODO: try to fit the message on screen
+ norm zz
+ return
+ endfor
+ if !a:can_change_thread
+ return
+ endif
+ call <SID>NM_kill_this_buffer()
+ if line('.') != line('0')
+ norm k
+ call <SID>NM_search_show_thread()
+ norm G
+ call <SID>NM_show_prev(0)
+ else
+ echo 'No more messages.'
+ endif
+endfunction
+
+function! s:NM_show_next(can_change_thread)
+ let info = b:nm_raw_info
+ let lnum = line('.')
+ for msg in info['msgs']
+ if lnum >= msg['start']
+ continue
+ endif
+
+ exec printf('norm %dG', msg['start'])
+ " TODO: try to fit the message on screen
+ norm zz
+ return
+ endfor
+ if !a:can_change_thread
+ return
+ endif
+ call <SID>NM_kill_this_buffer()
+ if line('.') != line('$')
+ norm j
+ call <SID>NM_search_show_thread()
+ else
+ echo 'No more messages.'
+ endif
+endfunction
+
+function! s:NM_show_archive_thread()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_mark_read_then_archive_thread()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_next_message()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_mark_read_then_next_open_message()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_previous_message()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_reply()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_view_all_mime_parts()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_view_raw_message()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_add_tag()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_remove_tag()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_advance_marking_read_and_archiving()
+ echo 'not implemented'
+endfunction
+
+function! s:NM_show_pipe_message()
+ echo 'not implemented'
+endfunction
+
+" --- --- search screen helper functions {{{2
+
+function! s:NM_show_fold_toggle(key, type, fold)
+ let info = b:nm_raw_info
+ let act = 'open'
+ if a:fold
+ let act = 'close'
+ endif
+ for fld in info['folds']
+ if fld[0] == a:type
+ exec printf('%dfold%s', fld[1], act)
+ endif
+ endfor
+ exec printf('nnoremap <buffer> %s :call <SID>NM_show_fold_toggle(''%s'', ''%s'', %d)<CR>', a:key, a:key, a:type, !a:fold)
+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, g: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, g:notmuch_show_signature_regexp) != -1
+ let mode_type = 'sig'
+ let mode_start = len(info['disp'])
+ elseif match(line, g: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, g:notmuch_show_citation_regexp) == -1
+ let outlnum = len(info['disp'])
+ let foldinfo = [ mode_type, mode_start, outlnum-1,
+ \ 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) > g:notmuch_show_signature_lines_max
+ 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