Add cpp linter (#64)

* Add c gcc option in the doc

* Add missing tag for eslint option in the doc

* Correct typo in doc (' ' instead of '.')

* add cpp linter

* correct typo in doc

* add filetype information for c++

README.md

@@ -29,6 +29,7 @@ name. That seems to be the fairest way to arrange this table.
 | Bash | [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/) |
 | Bourne Shell | [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/) |
 | C | [gcc](https://gcc.gnu.org/) |
+| C++ (filetype cpp)| [gcc](https://gcc.gnu.org/) |
 | CoffeeScript | [coffeelint](https://www.npmjs.com/package/coffeelint) |
 | CSS | [csslint](http://csslint.net/) |
 | Cython (pyrex filetype) | [cython](http://cython.org/) |

ale_linters/cpp/gcc.vim

@@ -0,0 +1,23 @@
+" Author: geam <mdelage@student.42.fr>
+" Description: gcc linter for cpp files
+
+if exists('g:loaded_ale_linters_cpp_gcc')
+    finish
+endif
+
+let g:loaded_ale_linters_cpp_gcc = 1
+
+" Set this option to change the GCC options for warnings for C.
+if !exists('g:ale_cpp_gcc_options')
+    let g:ale_cpp_gcc_options = '-Wall'
+endif
+
+call ALEAddLinter('cpp', {
+\   'name': 'gcc',
+\   'output_stream': 'stderr',
+\   'executable': 'gcc',
+\   'command': 'gcc -S -x c++ -fsyntax-only '
+\       . g:ale_cpp_gcc_options
+\       . ' -',
+\   'callback': 'ale#handlers#HandleGCCFormat',
+\})

doc/ale.txt

@@ -13,6 +13,7 @@ CONTENTS                                                         *ale-contents*
     4.1. eslint.....................................|ale-linter-options-eslint|
     4.2. phpcs......................................|ale-linter-options-phpcs|
     4.3. c-gcc......................................|ale-linter-options-c-gcc|
+    4.4. cpp-gcc....................................|ale-linter-options-cpp-gcc|
   5. API............................................|ale-api|
   6. Contact........................................|ale-contact|
 
@@ -42,6 +43,7 @@ The following languages and tools are supported.
 * Bash: 'shell' (-n flag), 'shellcheck'
 * Bourne Shell: 'shell' (-n flag), 'shellcheck'
 * C: 'gcc'
+* C++ (filetype cpp): 'gcc'
 * CoffeeScript: 'coffelint'
 * CSS: 'csslint'
 * Cython (pyrex filetype): 'cython'
@@ -274,6 +276,16 @@ Default: `'-Wall'`
 
 This variable can be change to modify flags given to gcc.
 
+-------------------------------------------------------------------------------
+4.4. cpp-gcc                                       *ale-linter-options-cpp-gcc*
+
+g:ale_cpp_gcc_options                                   *g:ale_cpp_gcc_options*
+
+Type: |String|
+Default: `'-Wall'`
+
+This variable can be changed to modify flags given to gcc.
+
 ===============================================================================
 5. API                                                                *ale-api*