Gkini: Difference between revisions
Ravenwolf397 (talk | contribs) Correct WriteString() length limit |
Ravenwolf397 (talk | contribs) Improve summary, add info to ReadString section |
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These are functions to manipulate the | These are functions to manipulate the game's config file config.ini, located at "INSTALL_DIR/config.ini". | ||
The format of the file looks like this: | The format of the file looks like this: | ||
[section] | <source lang="ini"> | ||
key=value | [section] | ||
. | key=value | ||
. | key2=value2 | ||
key3=value3 | |||
... | |||
[section2] | |||
key4=value4 | |||
key5=value5 | |||
key6=value6 | |||
... | |||
</source> | |||
For example, here is an excerpt from one config.ini: | |||
<source lang="ini"> | |||
[Vendetta] | |||
version=4 | |||
skin=skins/platinum/ | |||
maxframerate=120 | |||
</source> | |||
Values are usually strings or integers. All identifiers (sections and keys) are case-sensitive. | |||
Each entry is exactly one line; this means they cannot contain newline characters ("\n"). The key and value are separated by the ''first'' equal sign in the line; for example, "key==value" is interpreted as a key "key" and value "=value". | |||
All entries are limited to 767 characters (including key, equal sign, and value). Entries larger than this might be truncated, split, or ignored. | |||
If any of your strings have a null character ("\0") in them, then they will be treated as if they ended there. So for these functions, a string like "foo\0bar" will be treated like it was just "foo". | |||
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'''section''' a section of the config file<br> | '''section''' a section of the config file<br> | ||
'''key''' key within a section<br> | '''key''' key within a section<br> | ||
'''default''' value to return if key not found | '''default''' value to return if key not found or value is empty (eg. "foo=") | ||
<br><br> | <br><br> | ||
'''Returns:''' | '''Returns:''' | ||
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'''Example:'''<br> | '''Example:'''<br> | ||
<source lang="lua">gkini.ReadString("Vendetta", "Username", "dude") -> "hans" -- get the default username from the config file</source> | <source lang="lua">gkini.ReadString("Vendetta", "Username", "dude") -> "hans" -- get the default username from the config file</source> | ||
'''Notes:'''<br> | |||
- Leading/trailing spaces are stripped from the return value. For example, if your file reads "key= value ", then ReadString(section, "key", "") will return "value", not " value ".<br> | |||
- If the entry is longer than 767 characters, then further characters will be ignored. | |||
<br><br> | <br><br> | ||
Revision as of 22:52, 15 April 2023
These are functions to manipulate the game's config file config.ini, located at "INSTALL_DIR/config.ini".
The format of the file looks like this:
<source lang="ini"> [section] key=value key2=value2 key3=value3 ...
[section2] key4=value4 key5=value5 key6=value6 ... </source>
For example, here is an excerpt from one config.ini:
<source lang="ini"> [Vendetta] version=4 skin=skins/platinum/ maxframerate=120 </source>
Values are usually strings or integers. All identifiers (sections and keys) are case-sensitive.
Each entry is exactly one line; this means they cannot contain newline characters ("\n"). The key and value are separated by the first equal sign in the line; for example, "key==value" is interpreted as a key "key" and value "=value".
All entries are limited to 767 characters (including key, equal sign, and value). Entries larger than this might be truncated, split, or ignored.
If any of your strings have a null character ("\0") in them, then they will be treated as if they ended there. So for these functions, a string like "foo\0bar" will be treated like it was just "foo".
Functions
ReadInt
Definition:
ReadInt(string section, string key, int default) -> int value
Description:
Read an integer from the given section and key
Arguments:
section a section of the config file
key key within a section
default value to return if key not found
Returns:
Example:
<source lang="lua">gkini.ReadInt("Vendetta", "showhelpstring", 1) -> 0 -- showhelpstring is ccurrently set to 0</source>
ReadString
Definition:
ReadString(string section, string key, string default) -> string value
Description:
Read a string from the given section and key
Arguments:
section a section of the config file
key key within a section
default value to return if key not found or value is empty (eg. "foo=")
Returns:
Example:
<source lang="lua">gkini.ReadString("Vendetta", "Username", "dude") -> "hans" -- get the default username from the config file</source>
Notes:
- Leading/trailing spaces are stripped from the return value. For example, if your file reads "key= value ", then ReadString(section, "key", "") will return "value", not " value ".
- If the entry is longer than 767 characters, then further characters will be ignored.
WriteInt
Definition:
WriteInt(string section, string key, int value) -> nil
Description:
Write an integer to the given section and key
Arguments:
section a section of the config file
key key within a section
value value of a key as an integer
Returns:
Example:
<source lang="lua">gkini.WriteInt("Vendetta", "showhelpstring", 1) -- change the showhelpstring option to 1</source>
WriteString
Definition:
WriteString(string section, string key, string value) -> nil
Description:
Write a string to the given section and key. The entire entry must be <= 767 characters in total, including the key, equals sign, and value. If the entry is longer than this, then it will be truncated to 767 characters.
Arguments:
section a section of the config file
key key within a section
value value of a key as a string
Returns:
Example:
<source lang="lua">gkini.WriteString("Vendetta", "Username", "dude") -- change the Username option to dude</source>