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From "Patrick Schmidt (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CONFIGURATION-716) PropertiesConfiguration: Escape sequence handling different from Properties
Date Thu, 20 Sep 2018 10:39:00 GMT
Patrick Schmidt created CONFIGURATION-716:
---------------------------------------------

             Summary: PropertiesConfiguration: Escape sequence handling different from Properties
                 Key: CONFIGURATION-716
                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-716
             Project: Commons Configuration
          Issue Type: Bug
    Affects Versions: 2.3
            Reporter: Patrick Schmidt


The escape sequence handling in PropertiesConfiguration is different from java.util.Properties.

The Javadoc (of java.util.Properties) basically states that if an escape sequence (backslash
+ character) is not understood, the backslash is simply removed. PropertiesConfiguration
keeps the backslash. E.g. "\ " (backslash + space) should result in just a space. This sequence
is used by Properties to escape the first leading space in a property value when writing to
a properties-file. PropertiesConfiguration does not understand this syntax. Also (which is
technically a different issue but pretty close to this one) does not preserve leading spaces
in property values when saving. One could use \u0020 to encode the first leading space, but
it would be nicer if it could just use the simpler "\ ".



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