1 files changed, 137 insertions, 0 deletions
diff --git a/autoload/vimtex/log.vim b/autoload/vimtex/log.vim
new file mode 100644
index 00000000..f7569a65
--- /dev/null
+++ b/autoload/vimtex/log.vim
@@ -0,0 +1,137 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'latex') == -1
+
+" vimtex - LaTeX plugin for Vim
+"
+" Maintainer: Karl Yngve Lervåg
+" Email:      karl.yngve@gmail.com
+"
+
+function! vimtex#log#init_buffer() abort " {{{1
+  command! -buffer -bang VimtexLog call vimtex#log#open()
+
+  nnoremap <buffer> <plug>(vimtex-log) :VimtexLog<cr>
+endfunction
+
+" }}}1
+
+function! vimtex#log#info(...) abort " {{{1
+  call s:logger.add(a:000, 'info')
+endfunction
+
+" }}}1
+function! vimtex#log#warning(...) abort " {{{1
+  call s:logger.add(a:000, 'warning')
+endfunction
+
+" }}}1
+function! vimtex#log#error(...) abort " {{{1
+  call s:logger.add(a:000, 'error')
+endfunction
+
+" }}}1
+
+function! vimtex#log#get() abort " {{{1
+  return s:logger.entries
+endfunction
+
+" }}}1
+
+function! vimtex#log#open() abort " {{{1
+  call vimtex#scratch#new(s:logger)
+endfunction
+
+" }}}1
+function! vimtex#log#toggle_verbose() abort " {{{1
+  if s:logger.verbose
+    let s:logger.verbose = 0
+    call vimtex#log#info('Logging is now quiet')
+  else
+    call vimtex#log#info('Logging is now verbose')
+    let s:logger.verbose = 1
+  endif
+endfunction
+
+" }}}1
+
+
+let s:logger = {
+      \ 'name' : 'VimtexMessageLog',
+      \ 'entries' : [],
+      \ 'type_to_highlight' : {
+      \   'info' : 'VimtexInfo',
+      \   'warning' : 'VimtexWarning',
+      \   'error' : 'VimtexError',
+      \ },
+      \ 'verbose' : get(g:, 'vimtex_log_verbose', 1),
+      \}
+function! s:logger.add(msg_arg, type) abort dict " {{{1
+  let l:msg_list = []
+  for l:msg in a:msg_arg
+    if type(l:msg) == type('')
+      call add(l:msg_list, l:msg)
+    elseif type(l:msg) == type([])
+      call extend(l:msg_list, filter(l:msg, "type(v:val) == type('')"))
+    endif
+  endfor
+
+  let l:entry = {}
+  let l:entry.type = a:type
+  let l:entry.time = strftime('%T')
+  let l:entry.callstack = vimtex#debug#stacktrace()[1:]
+  let l:entry.msg = l:msg_list
+  call add(self.entries, l:entry)
+
+  if !self.verbose | return | endif
+
+  " Ignore message
+  for l:re in get(g:, 'vimtex_log_ignore', [])
+    if join(l:msg_list) =~# l:re | return | endif
+  endfor
+
+  call vimtex#echo#formatted([
+        \ [self.type_to_highlight[a:type], 'vimtex:'],
+        \ ' ' . l:msg_list[0]
+        \])
+  for l:line in l:msg_list[1:]
+    call vimtex#echo#echo('        ' . l:line)
+  endfor
+endfunction
+
+" }}}1
+function! s:logger.print_content() abort dict " {{{1
+  for l:entry in self.entries
+    call append('$', printf('%s: %s', l:entry.time, l:entry.type))
+    for l:stack in l:entry.callstack
+      if l:stack.lnum > 0
+        call append('$', printf('  #%d %s:%d', l:stack.nr, l:stack.filename, l:stack.lnum))
+      else
+        call append('$', printf('  #%d %s', l:stack.nr, l:stack.filename))
+      endif
+      call append('$', printf('  In %s', l:stack.function))
+      if !empty(l:stack.text)
+        call append('$', printf('    %s', l:stack.text))
+      endif
+    endfor
+    for l:msg in l:entry.msg
+      call append('$', printf('  %s', l:msg))
+    endfor
+    call append('$', '')
+  endfor
+endfunction
+
+" }}}1
+function! s:logger.syntax() abort dict " {{{1
+  syntax match VimtexInfoOther /.*/
+
+  syntax include @VIM syntax/vim.vim
+  syntax match VimtexInfoVimCode /^    .*/ transparent contains=@VIM
+
+  syntax match VimtexInfoKey /^\S*:/ nextgroup=VimtexInfoValue
+  syntax match VimtexInfoKey /^  #\d\+/ nextgroup=VimtexInfoValue
+  syntax match VimtexInfoKey /^  In/ nextgroup=VimtexInfoValue
+  syntax match VimtexInfoValue /.*/ contained
+endfunction
+
+" }}}1
+
+endif