Removed syntastic and replaced it with ale

Read more here:
https://github.com/w0rp/ale

sources_non_forked/ale/ale_linters/tex/alex.vim

@@ -0,0 +1,11 @@
+" Author: Johannes Wienke <languitar@semipol.de>
+" Description: alex for TeX files
+
+call ale#linter#Define('tex', {
+\   'name': 'alex',
+\   'executable': 'alex',
+\   'command': 'alex %s -t',
+\   'output_stream': 'stderr',
+\   'callback': 'ale#handlers#alex#Handle',
+\   'lint_file': 1,
+\})

sources_non_forked/ale/ale_linters/tex/chktex.vim

@@ -0,0 +1,54 @@
+" Author: Andrew Balmos - <andrew@balmos.org>
+" Description: chktex for LaTeX files
+
+let g:ale_tex_chktex_executable =
+\   get(g:, 'ale_tex_chktex_executable', 'chktex')
+
+let g:ale_tex_chktex_options =
+\   get(g:, 'ale_tex_chktex_options', '-I')
+
+function! ale_linters#tex#chktex#GetCommand(buffer) abort
+    " Check for optional .chktexrc
+    let l:chktex_config = ale#path#FindNearestFile(
+    \   a:buffer,
+    \   '.chktexrc')
+
+    let l:command = ale#Var(a:buffer, 'tex_chktex_executable')
+    " Avoid bug when used without -p (last warning has gibberish for a filename)
+    let l:command .= ' -v0 -p stdin -q'
+
+    if !empty(l:chktex_config)
+        let l:command .= ' -l ' . ale#Escape(l:chktex_config)
+    endif
+
+    let l:command .= ' ' . ale#Var(a:buffer, 'tex_chktex_options')
+
+    return l:command
+endfunction
+
+function! ale_linters#tex#chktex#Handle(buffer, lines) abort
+    " Mattes lines like:
+    "
+    " stdin:499:2:24:Delete this space to maintain correct pagereferences.
+    " stdin:507:81:3:You should enclose the previous parenthesis with `{}'.
+    let l:pattern = '^stdin:\(\d\+\):\(\d\+\):\(\d\+\):\(.\+\)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'text': l:match[4] . ' (' . (l:match[3]+0) . ')',
+        \   'type': 'W',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('tex', {
+\   'name': 'chktex',
+\   'executable': 'chktex',
+\   'command_callback': 'ale_linters#tex#chktex#GetCommand',
+\   'callback': 'ale_linters#tex#chktex#Handle'
+\})

sources_non_forked/ale/ale_linters/tex/lacheck.vim

@@ -0,0 +1,47 @@
+" Author: Andrew Balmos - <andrew@balmos.org>
+" Description: lacheck for LaTeX files
+
+let g:ale_tex_lacheck_executable =
+\   get(g:, 'ale_tex_lacheck_executable', 'lacheck')
+
+function! ale_linters#tex#lacheck#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'tex_lacheck_executable')
+endfunction
+
+function! ale_linters#tex#lacheck#GetCommand(buffer) abort
+    return ale#Var(a:buffer, 'tex_lacheck_executable') . ' %t'
+endfunction
+
+function! ale_linters#tex#lacheck#Handle(buffer, lines) abort
+    " Mattes lines like:
+    "
+    " "book.tex", line 37: possible unwanted space at "{"
+    " "book.tex", line 38: missing `\ ' after "etc."
+
+    let l:pattern = '^".\+", line \(\d\+\): \(.\+\)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        " lacheck follows `\input{}` commands. If the cwd is not the same as the
+        " file in the buffer then it will fail to find the inputed items. We do not
+        " want warnings from those items anyway
+        if !empty(matchstr(l:match[2], '^Could not open ".\+"$'))
+            continue
+        endif
+
+        call add(l:output, {
+        \   'lnum': l:match[1] + 0,
+        \   'text': l:match[2],
+        \   'type': 'W',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('tex', {
+\   'name': 'lacheck',
+\   'executable_callback': 'ale_linters#tex#lacheck#GetExecutable',
+\   'command_callback': 'ale_linters#tex#lacheck#GetCommand',
+\   'callback': 'ale_linters#tex#lacheck#Handle'
+\})

sources_non_forked/ale/ale_linters/tex/proselint.vim

@@ -0,0 +1,9 @@
+" Author: poohzrn https://github.com/poohzrn
+" Description: proselint for TeX files
+
+call ale#linter#Define('tex', {
+\   'name': 'proselint',
+\   'executable': 'proselint',
+\   'command': 'proselint %t',
+\   'callback': 'ale#handlers#unix#HandleAsWarning',
+\})

sources_non_forked/ale/ale_linters/tex/redpen.vim

@@ -0,0 +1,9 @@
+" Author: rhysd https://rhysd.github.io
+" Description: Redpen, a proofreading tool (http://redpen.cc)
+
+call ale#linter#Define('tex', {
+\   'name': 'redpen',
+\   'executable': 'redpen',
+\   'command': 'redpen -f latex -r json %t',
+\   'callback': 'ale#handlers#redpen#HandleRedpenOutput',
+\})

sources_non_forked/ale/ale_linters/tex/vale.vim

@@ -0,0 +1,9 @@
+" Author: chew-z https://github.com/chew-z
+" Description: vale for LaTeX files
+
+call ale#linter#Define('tex', {
+\   'name': 'vale',
+\   'executable': 'vale',
+\   'command': 'vale --output=JSON %t',
+\   'callback': 'ale#handlers#vale#Handle',
+\})

sources_non_forked/ale/ale_linters/tex/write-good.vim

@@ -0,0 +1,9 @@
+" Author: Sumner Evans <sumner.evans98@gmail.com>
+" Description: write-good for TeX files
+
+call ale#linter#Define('tex', {
+\   'name': 'write-good',
+\   'executable_callback': 'ale#handlers#writegood#GetExecutable',
+\   'command_callback': 'ale#handlers#writegood#GetCommand',
+\   'callback': 'ale#handlers#writegood#Handle',
+\})