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<?xml version="1.0"?>
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<rule version="1">
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<pattern> if \( ([!] )*?(strlen) \( \w+? \) ([>] [0] )*?\) { </pattern>
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<message>
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<id>StrlenEmptyString</id>
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<severity>performance</severity>
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<summary>Using strlen() to check if a string is empty is not efficient.</summary>
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</message>
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</rule>
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