New checker for JavaScript and TypeScript: lynt.

autoload/syntastic/preprocess.vim

@@ -251,6 +251,44 @@ function! syntastic#preprocess#killEmpty(errors) abort " {{{2
     return filter(copy(a:errors), 'v:val !=# ""')
 endfunction " }}}2
 
+function! syntastic#preprocess#lynt(errors) abort " {{{2
+    let errs = join(a:errors, '')
+    if errs ==# ''
+        return []
+    endif
+
+    let json = s:_decode_JSON(errs)
+
+    let out = []
+    if type(json) == type([])
+        for err in json
+            if type(err) == type({}) && type(get(err, 'filePath')) == type('') && type(get(err, 'errors')) == type([])
+                let fname = get(err, 'filePath')
+
+                for e in get(err, 'errors')
+                    if type(e) == type({})
+                        try
+                            let line = e['line']
+                            let col  = e['column']
+                            let ecol = line == get(e, 'endLine') ? get(e, 'endColumn') : 0
+                            let msg  = e['message'] . ' [' . e['ruleName'] . ']'
+
+                            cal add(out, join([fname, line, col, ecol, msg], ':'))
+                        catch /\m^Vim\%((\a\+)\)\=:E716/
+                            call syntastic#log#warn('checker javascript/lynt: unrecognized error item ' . string(e))
+                        endtry
+                    else
+                        call syntastic#log#warn('checker javascript/lynt unrecognized error item ' . string(e))
+                    endif
+                endfor
+            endif
+        endfor
+    else
+        call syntastic#log#warn('checker javascript/lynt unrecognized error format (crashed checker?)')
+    endif
+    return out
+endfunction " }}}2
+
 function! syntastic#preprocess#perl(errors) abort " {{{2
     let out = []
 

doc/syntastic-checkers.txt

@@ -3408,9 +3408,10 @@ The following checkers are available for JavaScript (filetype "javascript"):
     7. JSHint...................|syntastic-javascript-jshint|
     8. JSLint...................|syntastic-javascript-jslint|
     9. JSXHint..................|syntastic-javascript-jsxhint|
-    10. mixedindentlint.........|syntastic-javascript-mixedindentlint|
+    10. Lynt....................|syntastic-javascript-lynt|
-    11. standard................|syntastic-javascript-standard|
+    11. mixedindentlint.........|syntastic-javascript-mixedindentlint|
-    12. tern-lint...............|syntastic-javascript-tern_lint|
+    12. standard................|syntastic-javascript-standard|
+    13. tern-lint...............|syntastic-javascript-tern_lint|
 
 ------------------------------------------------------------------------------
 1. Closure Compiler                     *syntastic-javascript-closurecompiler*
@@ -3640,7 +3641,7 @@ syntastic to call "JSLint" with no options.
 ------------------------------------------------------------------------------
 9. JSXHint                                      *syntastic-javascript-jsxhint*
 
-Name:        JSXHint
+Name:        jsxhint
 Maintainer:  Thomas Boyt <me@thomasboyt.com>
 
 "JSXHint" is a wrapper around JSHint (http://jshint.com/) for
@@ -3706,7 +3707,29 @@ To get around this, "Syntastic-React" can be used as a replacement for
     https://github.com/jaxbot/syntastic-react
 
 ------------------------------------------------------------------------------
-10. mixedindentlint                     *syntastic-javascript-mixedindentlint*
+10. Lynt                                           *syntastic-javascript-lynt*
+
+Name:        lynt
+Maintainer:  LCD 47 <lcd047@gmail.com>
+
+"Lynt" is a JavaScript linter with support for TypeScript, Flow, and React.
+See the project's page for more information:
+
+    https://github.com/saadq/lynt
+
+Checker options~
+
+This checker is initialised using the "makeprgBuild()" function and thus it
+accepts the standard options described at |syntastic-config-makeprg|.
+
+Note~
+
+Automatically fixing errors (option "--fix") is not supported.
+
+See also: |syntastic-typescript-lynt|.
+
+------------------------------------------------------------------------------
+11. mixedindentlint                     *syntastic-javascript-mixedindentlint*
 
 Name:        mixedindentlint
 Maintainer:  Payton Swick <payton@foolord.com>
@@ -3724,7 +3747,7 @@ accepts the standard options described at |syntastic-config-makeprg|.
 See also: |syntastic-css-mixedindentlint|, |syntastic-scss-mixedindentlint|.
 
 ------------------------------------------------------------------------------
-11. standard                                   *syntastic-javascript-standard*
+12. standard                                   *syntastic-javascript-standard*
 
 Name:        standard
 Maintainer:  LCD 47 <lcd047@gmail.com>
@@ -3758,7 +3781,7 @@ example to use happiness (https://github.com/JedWatson/happiness) instead of
     let g:syntastic_javascript_standard_generic = 1
 <
 ------------------------------------------------------------------------------
-12. tern-lint                                 *syntastic-javascript-tern_lint*
+13. tern-lint                                 *syntastic-javascript-tern_lint*
 
 Name:        tern_lint
 Maintainer:  LCD 47 <lcd047@gmail.com>
@@ -6913,7 +6936,8 @@ SYNTAX CHECKERS FOR TYPESCRIPT                 *syntastic-checkers-typescript*
 The following checkers are available for TypeScript (filetype "typescript"):
 
     1. ESLint...................|syntastic-typescript-eslint|
-    2. TSLint...................|syntastic-typescript-tslint|
+    2. Lynt.....................|syntastic-typescript-lynt|
+    3. TSLint...................|syntastic-typescript-tslint|
 
 ------------------------------------------------------------------------------
 1. ESLint                                        *syntastic-typescript-eslint*
@@ -6944,7 +6968,29 @@ See also: |syntastic-html-eslint|, |syntastic-javascript-eslint|,
 |syntastic-vue-eslint|.
 
 ------------------------------------------------------------------------------
-2. TSLint                                        *syntastic-typescript-tslint*
+2. Lynt                                            *syntastic-typescript-lynt*
+
+Name:        lynt
+Maintainer:  LCD 47 <lcd047@gmail.com>
+
+"Lynt" is a JavaScript linter with support for TypeScript, Flow, and React.
+See the project's page for more information:
+
+    https://github.com/saadq/lynt
+
+Checker options~
+
+This checker is initialised using the "makeprgBuild()" function and thus it
+accepts the standard options described at |syntastic-config-makeprg|.
+
+Note~
+
+Automatically fixing errors (option "--fix") is not supported.
+
+See also: |syntastic-javascript-lynt|.
+
+------------------------------------------------------------------------------
+3. TSLint                                        *syntastic-typescript-tslint*
 
 Name:        tslint
 Maintainer:  Seon-Wook Park <seon.wook@swook.net>

plugin/syntastic.vim

@@ -19,7 +19,7 @@ if has('reltime')
     lockvar! g:_SYNTASTIC_START
 endif
 
-let g:_SYNTASTIC_VERSION = '3.9.0-19'
+let g:_SYNTASTIC_VERSION = '3.9.0-20'
 lockvar g:_SYNTASTIC_VERSION
 
 " Sanity checks {{{1

syntax_checkers/javascript/lynt.vim

@@ -0,0 +1,49 @@
+"============================================================================
+"File:        lynt.vim
+"Description: Syntax checking plugin for syntastic
+"Maintainer:  LCD 47 <lcd047@gmail.com>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"============================================================================
+
+if exists('g:loaded_syntastic_javascript_lynt_checker')
+    finish
+endif
+let g:loaded_syntastic_javascript_lynt_checker = 1
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_javascript_lynt_GetLocList() dict
+    let makeprg = self.makeprgBuild({ 'args_after': '--json' })
+
+    let errorformat = '%f:%l:%c:%n:%m'
+
+    let loclist = SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat,
+        \ 'preprocess': 'lynt',
+        \ 'defaults': {'type': 'E'},
+        \ 'returns': [0, 1] })
+
+    for e in loclist
+        if get(e, 'col', 0) && get(e, 'nr', 0)
+            let e['hl'] = '\%>' . (e['col'] - 1) . 'c\%<' . (e['nr']) . 'c'
+            let e['nr'] = 0
+        endif
+    endfor
+
+    return loclist
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'javascript',
+    \ 'name': 'lynt'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set sw=4 sts=4 et fdm=marker:

syntax_checkers/typescript/lynt.vim

@@ -0,0 +1,23 @@
+"============================================================================
+"File:        lynt.vim
+"Description: Syntax checking plugin for syntastic
+"Maintainer:  LCD 47 <lcd047 at gmail dot com>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+
+if exists('g:loaded_syntastic_typescript_lynt_checker')
+    finish
+endif
+let g:loaded_syntastic_typescript_lynt_checker = 1
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'typescript',
+    \ 'name': 'lynt',
+    \ 'redirect': 'javascript/lynt'})
+
+" vim: set sw=4 sts=4 et fdm=marker: