add error code, aka "source" to the output

.python-version

@@ -0,0 +1 @@
+3.8

README.md

@@ -21,13 +21,12 @@ Before using this plugin, ensure that `phpcs` is installed on your system, prefe
 - SublimeLinter settings: http://sublimelinter.com/en/latest/settings.html
 - Linter settings: http://sublimelinter.com/en/latest/linter_settings.html
 
-Use the `"args"` setting to configure the coding standard, and/or to display the sniff codes for each error:
+Use the `"args"` setting to configure the coding standard, if you've not done so via [configuration file](https://github.com/PHPCSStandards/PHP_CodeSniffer/wiki/Annotated-Ruleset). 
 
 ```json
 {
     "args": [
         "--standard=PEAR", // code standard
-        "-s"               // display sniff codes
     ]
 }
 ```

linter.py

@@ -1,12 +1,25 @@
-from SublimeLinter.lint import ComposerLinter
+import json
+from SublimeLinter.lint import LintMatch, ComposerLinter
 
 
 class Phpcs(ComposerLinter):
-    cmd = ('phpcs', '--report=emacs', '${args}', '-')
-    regex = r'^.*:(?P<line>[0-9]+):(?P<col>[0-9]+): (?:(?P<error>error)|(?P<warning>warning)) - (?P<message>(.(?!\(\S+\)$))+)( \((?P<code>\S+)\)$)?'  # noqa: E501
+    cmd = ('phpcs', '--report=json', '${args}', '-')
     defaults = {
         'selector': 'embedding.php, source.php  - text.blade',
         # we want auto-substitution of the filename,
         # but `cmd` does not support that yet
         '--stdin-path=': '${file}'
     }
+
+    def find_errors(self, output):
+        data = json.loads(output)
+        for file_path, file_data in data["files"].items():
+            for error in file_data['messages']:
+                yield LintMatch(
+                    filename=file_path,
+                    line=error['line'] - 1,
+                    col=error['column'] - 1,
+                    error_type=error['type'].lower(),
+                    code=error['source'],
+                    message=error['message'],
+                )