Utf8 (p.lablgtk3.3.0.beta5-1.doc.lablgtk3.Glib.Utf8)

val validate : string -> bool

If you read an UTF-8 string from somewhere, you should validate it, or risk random segmentation faults

val length : string -> int

val from_unichar : unichar -> string

from_unichar 0xiii converts a code point iii (usually in hexadecimal form) into a string containing the UTF-8 encoded character 0xiii. See unicode.org for charmaps. Does not check that the given code point is a valid unicode point.

val from_unistring : unistring -> string

val to_unichar_validated : string -> pos:int ref -> unichar

to_unichar_validated decodes an UTF-8 encoded code point and checks for incomplete characters, invalid characters and overlong encodings.

raises Convert.Error
if invalid

val to_unichar : string -> pos:int ref -> unichar

to_unichar decodes an UTF-8 encoded code point. Result is undefined if pos does not point to a valid UTF-8 encoded character.

val to_unistring : string -> unistring

to_unistring decodes an UTF-8 encoded string into an array of unichar. The string must be valid.

val first_char : string -> unichar

val offset_to_pos : string -> pos:int -> off:int -> int

type normalize_mode = [

| `DEFAULT
| `DEFAULT_COMPOSE
| `ALL
| `ALL_COMPOSE

]

val normalize : string -> normalize_mode -> string

val uppercase : string -> string

val lowercase : string -> string

val casefold : string -> string

val collate : string -> string -> int

val collate_key : string -> string