Fix #279: Create custom maps only in tex files

autoload/vimtex/imaps.vim

@@ -23,14 +23,20 @@ endfunction
 function! vimtex#imaps#init_buffer() " {{{1
   if !g:vimtex_imaps_enabled | return | endif
 
-  for l:map in g:vimtex_imaps_list
-    call vimtex#imaps#add_map(l:map)
+  for l:map in g:vimtex_imaps_list + get(s:, 'custom_maps', [])
+    call s:create_map(l:map)
   endfor
 endfunction
 
 " }}}1
 
 function! vimtex#imaps#add_map(map) " {{{1
+  let s:custom_maps = get(s:, 'custom_maps', []) + [a:map]
+endfunction
+
+" }}}1
+
+function! s:create_map(map) " {{{1
   let l:lhs = a:map.lhs_rhs[0]
   let l:rhs = a:map.lhs_rhs[1]
   let l:leader = get(a:map, 'leader', g:vimtex_imaps_leader)
@@ -56,48 +62,6 @@ function! vimtex#imaps#add_map(map) " {{{1
   silent execute 'inoremap <silent><buffer>' l:leader . l:lhs l:rhs
 endfunction
 
-" }}}1
-
-"
-" Wrappers
-"
-function! s:wrap_math(lhs, rhs) " {{{1
-  return '<c-r>=<sid>is_math() ? ' . string(a:rhs)
-        \ . ' : ' . string(a:lhs) . '<cr>'
-endfunction
-
-" }}}1
-function! s:wrap_snippet(lhs, rhs) " {{{1
-  if g:vimtex_imaps_snippet_engine ==# 'neosnippet'
-    return '<c-r>=neosnippet#anonymous(''' . a:rhs . ''')<cr>'
-  else
-    return a:lhs . '<c-r>=UltiSnips#Anon('''
-          \ . a:rhs . ''', ''' . a:lhs . ''', '''', ''i'')<cr>'
-  endif
-endfunction
-
-" }}}1
-function! s:wrap_math_snippet(lhs, rhs) " {{{1
-  if g:vimtex_imaps_snippet_engine ==# 'neosnippet'
-    return '<c-r>=<sid>is_math() ? neosnippet#anonymous(''' . a:rhs . ''')'
-          \ . ' : ' . string(a:lhs) . '<cr>'
-  else
-    return a:lhs . '<c-r>=<sid>is_math() ? '
-          \ . 'UltiSnips#Anon(''' . a:rhs . ''', ''' . a:lhs . ''', '''', ''i'')'
-          \ . ': ''''<cr>'
-  endif
-endfunction
-
-" }}}1
-
-"
-" Helper functions
-"
-function! s:is_math() " {{{1
-  return match(map(synstack(line('.'), max([col('.') - 1, 1])),
-        \ 'synIDattr(v:val, ''name'')'), '^texMathZone[A-Z]S\?$') >= 0
-endfunction
-
 " }}}1
 function! s:default_maps() " {{{1
   " Define snippet maps with neosnippet syntax
@@ -193,6 +157,48 @@ function! s:default_maps() " {{{1
         \]
 endfunction
 
+" }}}1
+
+"
+" Wrappers
+"
+function! s:wrap_math(lhs, rhs) " {{{1
+  return '<c-r>=<sid>is_math() ? ' . string(a:rhs)
+        \ . ' : ' . string(a:lhs) . '<cr>'
+endfunction
+
+" }}}1
+function! s:wrap_snippet(lhs, rhs) " {{{1
+  if g:vimtex_imaps_snippet_engine ==# 'neosnippet'
+    return '<c-r>=neosnippet#anonymous(''' . a:rhs . ''')<cr>'
+  else
+    return a:lhs . '<c-r>=UltiSnips#Anon('''
+          \ . a:rhs . ''', ''' . a:lhs . ''', '''', ''i'')<cr>'
+  endif
+endfunction
+
+" }}}1
+function! s:wrap_math_snippet(lhs, rhs) " {{{1
+  if g:vimtex_imaps_snippet_engine ==# 'neosnippet'
+    return '<c-r>=<sid>is_math() ? neosnippet#anonymous(''' . a:rhs . ''')'
+          \ . ' : ' . string(a:lhs) . '<cr>'
+  else
+    return a:lhs . '<c-r>=<sid>is_math() ? '
+          \ . 'UltiSnips#Anon(''' . a:rhs . ''', ''' . a:lhs . ''', '''', ''i'')'
+          \ . ': ''''<cr>'
+  endif
+endfunction
+
+" }}}1
+
+"
+" Helper functions
+"
+function! s:is_math() " {{{1
+  return match(map(synstack(line('.'), max([col('.') - 1, 1])),
+        \ 'synIDattr(v:val, ''name'')'), '^texMathZone[A-Z]S\?$') >= 0
+endfunction
+
 " }}}1
 function! s:test_snippet_requirement(func_name) " {{{1
   return (a:func_name !~# 'snippet$')

doc/vimtex.txt

@@ -1158,13 +1158,13 @@ mappings: >
   let g:vimtex_imaps_list = [
     \ { 'lhs_rhs' : ['__',    '_\{$1\}'],
        \'leader' : '',
-       \'wrapper' : 's:wrap_math_ultisnips'},
+       \'wrapper' : 's:wrap_math_snippet'},
     \ { 'lhs_rhs' : ['^^',    '^\{$1\}'],
        \'leader' : '',
-       \'wrapper' : 's:wrap_math_ultisnips'},
+       \'wrapper' : 's:wrap_math_snippet'},
     \ { 'lhs_rhs' : ['((',    '\left($1\right)'],
         \'leader' : '',
-        \'wrapper' : 's:wrap_math_ultisnips'},
+        \'wrapper' : 's:wrap_math_snippet'},
     \]
 
   " Add custom mapping through vimtex#imap#add_map

test/feature/imaps/main.tex

@@ -0,0 +1,4 @@
+\documentclass{minimal}
+\begin{document}
+Hello world!
+\end{document}

test/feature/imaps/vimrc

@@ -0,0 +1,20 @@
+set nocompatible
+let &rtp = '~/.vim/bundle/neosnippet.vim/,' . &rtp
+let &rtp = '~/.vim/bundle/vimtex,' . &rtp
+let &rtp .= ',~/.vim/bundle/vimtex/after'
+filetype plugin indent on
+syntax enable
+
+let g:vimtex_imaps_snippet_engine = 'neosnippet'
+
+let g:vimtex_imaps_list = [
+    \ { 'lhs_rhs' : ['((',    '\left($1\right)'],
+    \   'leader' : '',
+    \   'wrapper' : 's:wrap_math_snippet'},
+    \]
+
+" Add custom mapping through vimtex#imap#add_map
+call vimtex#imaps#add_map({
+      \ 'lhs_rhs' : [ 'v', '\vec{${1}}${0}'],
+      \ 'wrapper' : 's:wrap_math_snippet'})
+