first attempt to fold the message nicely

[notmuch] / vim / plugin / notmuch.vim

diff --git a/vim/plugin/notmuch.vim b/vim/plugin/notmuch.vim
index 2b92ad688dfbc5a3ba37c22d8107a9e35984e774..70f38e2ac5a1a42768eafd5b7efab08401c8e295 100644 (file)
--- a/vim/plugin/notmuch.vim
+++ b/vim/plugin/notmuch.vim
@@ -51,6 +51,8 @@ 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*>'
+
 " --- implement search screen
 
 function! s:NM_cmd_search(words)
@@ -96,9 +98,86 @@ function! s:NM_cmd_show(words)
         setlocal bufhidden=delete
         let b:nm_raw_data = data
 
+        call s:NM_cmd_show_mkfolds()
+        setlocal foldtext=NM_cmd_show_foldtext()
+        setlocal fillchars=
+        setlocal foldcolumn=5
+
         exec printf("nnoremap <buffer> q :b %d<CR>", bufnr)
 endfunction
 
+function! s:NM_cmd_show_mkfolds()
+        let msg_start = -1
+        let hdr_start = -1
+        let bdy_start = -1
+        let prt_start = -1
+        let modetype = ''
+        let modeline = -1
+        let lnum = 1
+        let b:nm_fold_data = {}
+        while lnum <= line('$')
+                let line = getline(lnum)
+                if match(line, s:notmuch_show_message_begin_regexp) != -1
+                        let msg_start = lnum
+                elseif match(line, s:notmuch_show_message_end_regexp) != -1
+                        exec printf('%d,%dfold', msg_start, lnum)
+                        exec printf('%dfoldopen', msg_start)
+                        let b:nm_fold_data[msg_start] = ['msg', getline(msg_start)]
+
+                elseif match(line, s:notmuch_show_header_begin_regexp) != -1
+                        let hdr_start = lnum
+                elseif match(line, s:notmuch_show_header_end_regexp) != -1
+                        exec printf('%d,%dfold', hdr_start, lnum)
+                        exec printf('%dfoldclose', hdr_start)
+                        let b:nm_fold_data[hdr_start] = ['hdr', '* ' . getline(hdr_start+1) . ' [ Press "h" for full header. ]']
+
+                elseif match(line, s:notmuch_show_body_begin_regexp) != -1
+                        let bdy_start = lnum
+                elseif match(line, s:notmuch_show_body_end_regexp) != -1
+                        exec printf('%d,%dfold', bdy_start, lnum)
+                        exec printf('%dfoldopen', bdy_start)
+                        let b:nm_fold_data[bdy_start] = ['bdy', getline(bdy_start)]
+
+                elseif match(line, s:notmuch_show_part_begin_regexp) != -1
+                        let prt_start = lnum
+                elseif match(line, s:notmuch_show_part_end_regexp) != -1
+                        exec printf('%d,%dfold', prt_start, lnum)
+                        exec printf('%dfoldopen', prt_start)
+                        let b:nm_fold_data[msg_start] = ['msg', getline(prt_start)]
+
+                elseif modetype == ''
+                        if match(line, s:notmuch_show_signature_regexp) != -1
+                                let modetype = 'sig'
+                                let modeline = lnum
+                        elseif match(line, s:notmuch_show_citation_regexp) != -1
+                                let modetype = 'cit'
+                                let modeline = lnum
+                        endif
+                elseif modetype == 'cit'
+                        if match(line, s:notmuch_show_citation_regexp) == -1
+                                exec printf('%d,%dfold', modeline, lnum)
+                                let b:nm_fold_data[modeline] = [modetype, printf('[ %d-line citation.  Press "c" to show. ]', lnum - modeline)]
+                                let modetype = ''
+                        endif
+                elseif modetype == 'sig'
+                        if (lnum - modeline) > s:notmuch_show_signature_lines_max
+                                let modetype = ''
+                        elseif match(line, s:notmuch_show_part_end_regexp) != -1
+                                let modeline2 = lnum - 1
+                                exec printf('%d,%dfold', modeline, modeline2)
+                                let b:nm_fold_data[modeline] = [modetype, printf('[ %d-line signature.  Press "s" to show. ]', modeline2 - modeline)]
+                                let modetype = ''
+                        endif
+                endif
+
+                let lnum = lnum + 1
+        endwhile
+endfunction
+
+function! NM_cmd_show_foldtext()
+        return b:nm_fold_data[v:foldstart][1]
+endfunction
+
 
 " --- helper functions