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https://git.code.sf.net/p/quake/quakeforge
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6a7b316572
Vim's autoformating doesn't like our style of comments, so I have to force it to do what I want. Having to set the appropriate options every time I edit a file got to be a RPITA, so time to get the computer to do it for me :)
91 lines
3 KiB
Text
91 lines
3 KiB
Text
//unfortunately, have to wrap the docs in a C comment for doxygen
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// vim:tw=74:formatoptions-=l
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/**
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\page property-list Property List
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\QF's property lists are based on those used in OpenStep.
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\QF uses property lists for a wide variety of purposes. This includes saved
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game data, directory configuration and play-lists.
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A property list is a text file that describes a single value. However, that
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value can be one of the following types:
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<dl>
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<dt>Dictionaries</dt> <dd>Lists of values that are each accociated
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with a key</dd>
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<dt>Arrays</dt> <dd>Lists of indexed values</dd>
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<dt>Strings</dt> <dd>Simple text strings.</dd>
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<dt>Binary data</dt> <dd>Random binary data</dd>
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</dl>
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Dictionary and Array values allow for arbitrarily complex data to be
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represented by a property list.
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In addition, property lists also support comments, both single-line and
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multi-line. Single-line comments start with \c // and continue to the end
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of the line. Multi-line comments begin with
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<!-- crazy formatting to get C comments--><code>/</code><code>*</code> and
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end with <code>*</code><code>/</code>, and may span multiple lines, or be
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contained entirely within a single line, possibly with non-comment text
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following the comment.
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\section pl-dictionaries Dictionaries.
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A dictionary is a list of values, each associated with a key. The order of
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key/value pairs in a dictionary is not preserved.
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\code
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{
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key1 = value1;
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key2 = value2;
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// ...
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}
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\endcode
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A dictionary may be empty or have any number of
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<code>key = value</code> pairs separated by \c ;. The final \c ;
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before the closing \c } is optional.
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The key must be a string, but the value may be of any type, including
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dictionary or array.
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\section Arrays
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An array is an ordered list of values. The order of the values in an array
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is preserved.
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\code
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(
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value1,
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value2,
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// ...
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)
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\endcode
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An array may be empty or have any number of values. Each value may be of
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any type, including dictionary or array.
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\section pl-strings Strings
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\QF's property lists support three types of strings: unquoted, quoted and
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"long".
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An unquoted string may contain most printable characters. This includes the
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digits \c 0 to \c 9, the letters \c a to \c z and \c A to \c Z, and the
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symbols \c !, \c #, \c $, \c %, \c &, \c *, \c +, \c -, \c ., \c /, \c :,
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\c ?, \c @, \c |, \c ~, \c _ and \c ^.
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\verbatim
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0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ
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abcdefghijklmnopqrstuvwxyz!#$%&*+-./:?@|~_^
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\endverbatim
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Quoted strings may contain whitespace, C escape sequences, and any
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printable character. The quote character is \c \".
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Long strings use triple quotes (\c \"\"\") instead of \c \" as the quote
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character. This allows the use of unquoted \c \" characters in the string.
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And yes, these long strings were inspired by Python's long strings.
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\section pl-binary Binary Data
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<!-- in the following paragraph, the \< and \> are just < and >. the \ is
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for doxygen -->
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Binary data is hex-encoded and contained within angle brackets (\c \< \c
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\>). There must be an even number of hex-digits. That is, while \c \<FF00\>
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is value, \c \<F00\> is not.
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*/
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