Module nstd_sys::core::cty

Available on crate feature nstd_core only.

Provides functions for examining and operating on character types.

Functions

nstd_core_cty_is_alphabetic

Determines whether or not chr is alphabetic according to the Unicode standard.

nstd_core_cty_is_alphanumeric

Determines whether or not chr is alphabetic or numeric according to the Unicode standard.

nstd_core_cty_is_ascii_graphic

Determines whether or not chr is a graphic character.

nstd_core_cty_is_ascii_punctuation

Determines whether or not chr is punctuation.

nstd_core_cty_is_control

Determines whether or not chr is a control character according to the Unicode standard.

nstd_core_cty_is_digit

Determines whether or not chr is a digit, depending on radix.

nstd_core_cty_is_lowercase

Determines whether or not chr is lowercase according to the Unicode standard.

nstd_core_cty_is_numeric

Determines whether or not chr is numeric according to the Unicode standard.

nstd_core_cty_is_unicode

Determines whether or not chr is a valid Unicode scalar value.

nstd_core_cty_is_uppercase

Determines whether or not chr is uppercase according to the Unicode standard.

nstd_core_cty_is_whitespace

Determines whether or not chr is white space according to the Unicode standard.

nstd_core_cty_replacement_char

Returns the Unicode replacement character (�).

nstd_core_cty_to_ascii_lowercase

Returns the lowercase version of chr, or chr if there is no lowercase version.

nstd_core_cty_to_ascii_uppercase

Returns the uppercase version of chr, or chr if there is no uppercase version.