mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-12 21:52:32 +00:00
91 lines
3 KiB
Text
91 lines
3 KiB
Text
//unfortunately, have to wrap the docs in a C comment for doxygen
|
|
// vim:tw=74:formatoptions-=l
|
|
/**
|
|
\page property-list Property List
|
|
|
|
\QF's property lists are based on those used in OpenStep.
|
|
|
|
\QF uses property lists for a wide variety of purposes. This includes saved
|
|
game data, directory configuration and play-lists.
|
|
|
|
A property list is a text file that describes a single value. However, that
|
|
value can be one of the following types:
|
|
<dl>
|
|
<dt>Dictionaries</dt> <dd>Lists of values that are each accociated
|
|
with a key</dd>
|
|
<dt>Arrays</dt> <dd>Lists of indexed values</dd>
|
|
<dt>Strings</dt> <dd>Simple text strings.</dd>
|
|
<dt>Binary data</dt> <dd>Random binary data</dd>
|
|
</dl>
|
|
Dictionary and Array values allow for arbitrarily complex data to be
|
|
represented by a property list.
|
|
|
|
In addition, property lists also support comments, both single-line and
|
|
multi-line. Single-line comments start with \c // and continue to the end
|
|
of the line. Multi-line comments begin with
|
|
<!-- crazy formatting to get C comments--><code>/</code><code>*</code> and
|
|
end with <code>*</code><code>/</code>, and may span multiple lines, or be
|
|
contained entirely within a single line, possibly with non-comment text
|
|
following the comment.
|
|
|
|
\section pl-dictionaries Dictionaries.
|
|
A dictionary is a list of values, each associated with a key. The order of
|
|
key/value pairs in a dictionary is not preserved.
|
|
|
|
\code
|
|
{
|
|
key1 = value1;
|
|
key2 = value2;
|
|
// ...
|
|
}
|
|
\endcode
|
|
|
|
A dictionary may be empty or have any number of
|
|
<code>key = value</code> pairs separated by \c ;. The final \c ;
|
|
before the closing \c } is optional.
|
|
|
|
The key must be a string, but the value may be of any type, including
|
|
dictionary or array.
|
|
|
|
\section Arrays
|
|
An array is an ordered list of values. The order of the values in an array
|
|
is preserved.
|
|
|
|
\code
|
|
(
|
|
value1,
|
|
value2,
|
|
// ...
|
|
)
|
|
\endcode
|
|
|
|
An array may be empty or have any number of values. Each value may be of
|
|
any type, including dictionary or array.
|
|
|
|
\section pl-strings Strings
|
|
\QF's property lists support three types of strings: unquoted, quoted and
|
|
"long".
|
|
|
|
An unquoted string may contain most printable characters. This includes the
|
|
digits \c 0 to \c 9, the letters \c a to \c z and \c A to \c Z, and the
|
|
symbols \c !, \c #, \c $, \c %, \c &, \c *, \c +, \c -, \c ., \c /, \c :,
|
|
\c ?, \c @, \c |, \c ~, \c _ and \c ^.
|
|
\verbatim
|
|
0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ
|
|
abcdefghijklmnopqrstuvwxyz!#$%&*+-./:?@|~_^
|
|
\endverbatim
|
|
|
|
Quoted strings may contain whitespace, C escape sequences, and any
|
|
printable character. The quote character is \c \".
|
|
|
|
Long strings use triple quotes (\c \"\"\") instead of \c \" as the quote
|
|
character. This allows the use of unquoted \c \" characters in the string.
|
|
And yes, these long strings were inspired by Python's long strings.
|
|
|
|
\section pl-binary Binary Data
|
|
<!-- in the following paragraph, the \< and \> are just < and >. the \ is
|
|
for doxygen -->
|
|
Binary data is hex-encoded and contained within angle brackets (\c \< \c
|
|
\>). There must be an even number of hex-digits. That is, while \c \<FF00\>
|
|
is valid, \c \<F00\> is not.
|
|
*/
|