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+" Author: richard marmorstein <https://github.com/twitchard>
+" Description: plugin for Psalm, static analyzer for PHP
+
+call ale#Set('php_psalm_executable', 'psalm')
+
+function! ale_linters#php#psalm#Handle(buffer, lines) abort
+ " Matches patterns like the following:
+ let l:pattern = '^.*:\(\d\+\):\(\d\+\):\(\w\+\) - \(.*\)$'
+ let l:output = []
+
+ for l:match in ale#util#GetMatches(a:lines, l:pattern)
+ call add(l:output, {
+ \ 'lnum': l:match[1] + 0,
+ \ 'text': l:match[4],
+ \ 'type': l:match[3][:0] is# 'e' ? 'E' : 'W',
+ \})
+ endfor
+
+ return l:output
+endfunction
+
+call ale#linter#Define('php', {
+\ 'name': 'psalm',
+\ 'command': '%e --diff --output-format=emacs %s',
+\ 'executable_callback': ale#VarFunc('php_psalm_executable'),
+\ 'callback': 'ale_linters#php#psalm#Handle',
+\ 'lint_file': 1,
+\})