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Use head instead of (!! 0)

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This commit is contained in:
Joseph C. Sible
2020-04-05 16:16:12 -04:00
parent 2ebf522a52
commit 4604066c37
1 changed files with 1 additions and 1 deletions
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src/ShellCheck/AnalyzerLib.hs
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@@ -798,7 +798,7 @@ getVariablesFromLiteralToken token =
prop_getVariablesFromLiteral1 =
getVariablesFromLiteral "$foo${bar//a/b}$BAZ" == ["foo", "bar", "BAZ"]
getVariablesFromLiteral string =
map (!! 0) $ matchAllSubgroups variableRegex string
map head $ matchAllSubgroups variableRegex string
where
variableRegex = mkRegex "\\$\\{?([A-Za-z0-9_]+)"