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-rw-r--r--doc/lua_api.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 0cc83bf69..2421af069 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -1825,8 +1825,12 @@ Call these functions only at load time!
### Setting-related
* `minetest.setting_set(name, value)`
+ * Setting names can't contain whitespace or any of `="{}#`.
+ * Setting values can't contain the sequence `\n"""`.
+ * Setting names starting with "secure." can't be set.
* `minetest.setting_get(name)`: returns string or `nil`
* `minetest.setting_setbool(name, value)`
+ * See documentation on `setting_set` for restrictions.
* `minetest.setting_getbool(name)`: returns boolean or `nil`
* `minetest.setting_get_pos(name)`: returns position or nil
* `minetest.setting_save()`, returns `nil`, save all settings to config file