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-# mruby.h
-
-Basic header of mruby.
-It includes **mrbconf.h**, **mruby/value.h**, **mruby/version.h** internally.
-
-## `mrb_state` management
-
-### mrb_open
-```C
-mrb_state* mrb_open();
-```
-Creates new `mrb_state`.
-
-### mrb_allocf
-```C
-typedef void* (*mrb_allocf) (struct mrb_state *mrb, void *ptr, size_t s, void *ud);
-```
-Function pointer type of custom allocator used in `mrb_open_allocf`.
-
-The function pointing it must behave similarly as `realloc` except:
-* If `ptr` is `NULL` it must allocate new space.
-* If `s` is `NULL`, `ptr` must be freed.
-
-### mrb_open_allocf
-```C
-mrb_state* mrb_open_allocf(mrb_allocf f, void *ud);
-```
-Create new `mrb_state` with custom allocator.
-`ud` will be passed to custom allocator `f`.
-If user data isn't required just pass `NULL`.
-Function pointer `f` must satisfy requirements of its type.
-
-### mrb_close
-```C
-void mrb_close(mrb_state *mrb);
-```
-Deletes `mrb_state`.
-
-## Method
-
-### mrb_get_args
-```C
-int mrb_get_args(mrb_state *mrb, const char *format, ...);
-```
-Retrieve arguments from `mrb_state`.
-Use it inside a function pointed by `mrb_func_t`.
-It returns number of function retrieved.
-`format` is a list of following format specifier:
-
-char|mruby type|retrieve types|note
-:---:|----------|--------------|---
-`o`|`Object`|`mrb_value`|Could be used to retreive any type of argument
-`C`|`Class`/`Module`|`mrb_value`|
-`S`|`String`|`mrb_value`|
-`A`|`Array`|`mrb_value`|
-`H`|`Hash`|`mrb_value`|
-`s`|`String`|`char*`, `mrb_int`|
-`z`|`String`|`char*`|
-`a`|`Array`|`mrb_value*`, `mrb_int`|
-`f`|`Float`|`mrb_float`|
-`i`|`Integer`|`mrb_int`|
-`b`|boolean|`mrb_bool`|
-`n`|`Symbol`|`mrb_sym`|
-`&`|block|`mrb_value`|
-`*`|rest arguments|`mrb_value*`, `mrb_int`|Receive the rest of arguments as an array.
-<code>&#124;</code>|optional||After this spec following specs would be optional.
-`?`|optional given|`mrb_bool`|True if preceding argument is given. Used to check optional argument is given.
-
-The passing variadic arguments must be a pointer of retrieving type.