I.2 Property File Format
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## I.2 Property File Format

Property Files define properties. Properties are stored in key/value pairs and may only contain plain text. The suffix of these files should be `.properties`, the default Property File for a Build File is `build.properties`

    # Property files contain key/value pairs
    key=value

    # Property keys may contain alphanumeric chars and colons, but
    # not special chars. This way you can create pseudo-namespaces
    myapp.window.hsize=300
    myapp.window.vsize=200
    myapp.window.xpos=10
    myapp.window.ypos=100

    # You can refer to values of other properties by enclosing their
    # keys in "${}".
    text.width=${myapp.window.hsize}

    # Everything behind the equal sign is the value, you do
    # not have to enclose strings:
    text=This is some text, Your OS is ${php.os}

    # I guess that is all there is to property files

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