ascii+x86_64 +linux

The ascii module provides helper functions for working with the subset of Unicode which is defined by the American Standard Code for Information Interchange (ASCII).

Index

Functions

fn isalnum(c: rune) bool;
fn isalpha(c: rune) bool;
fn isblank(c: rune) bool;
fn iscntrl(c: rune) bool;
fn isdigit(c: rune) bool;
fn isgraph(c: rune) bool;
fn islower(c: rune) bool;
fn isprint(c: rune) bool;
fn ispunct(c: rune) bool;
fn isspace(c: rune) bool;
fn isupper(c: rune) bool;
fn isxdigit(c: rune) bool;
fn strcasecmp(a: str, b: str) int;
fn strlower(s: str) str;
fn strlower_buf(s: str, buf: []u8) str;
fn strupper(s: str) str;
fn strupper_buf(s: str, buf: []u8) str;
fn tolower(c: rune) rune;
fn toupper(c: rune) rune;
fn valid(c: rune) bool;
fn validstr(s: str) bool;

Functions

fn isalnum[link] 

fn isalnum(c: rune) bool;

Returns true if an ASCII character is alphanumeric.

fn isalpha[link] 

fn isalpha(c: rune) bool;

Returns true if an ASCII character is a letter.

fn isblank[link] 

fn isblank(c: rune) bool;

Returns true if a rune is a space or a tab.

fn iscntrl[link] 

fn iscntrl(c: rune) bool;

Returns true if an ASCII character is a control character.

fn isdigit[link] 

fn isdigit(c: rune) bool;

Returns true if an ASCII character is a digit.

fn isgraph[link] 

fn isgraph(c: rune) bool;

Returns true if an ASCII character is any printable character other than space.

fn islower[link] 

fn islower(c: rune) bool;

Returns true if an ASCII character is lowercase.

fn isprint[link] 

fn isprint(c: rune) bool;

Returns true if an ASCII character is printable.

fn ispunct[link] 

fn ispunct(c: rune) bool;

Returns true if an ASCII character is punctuation.

fn isspace[link] 

fn isspace(c: rune) bool;

Returns true if an ASCII character is a white-space character - one of '\f', '\n', '\r', '\t', '\v', ' '.

fn isupper[link] 

fn isupper(c: rune) bool;

Returns true if an ASCII character is uppercase.

fn isxdigit[link] 

fn isxdigit(c: rune) bool;

Returns true if an ASCII character is a hexadecimal digit.

fn strcasecmp[link] 

fn strcasecmp(a: str, b: str) int;

Compares two strings by their sort order, treating all ASCII capital letters as their lowercase counterpart (i.e. an ASCII-case-insensitive comparison is performed). Zero is returned if the strings are equal, a negative value if a is less than b, or a positive value if a is greater than b.

fn strlower[link] 

fn strlower(s: str) str;

Converts all ASCII uppercase characters in a string to their lowercase representation, returning a new string. The return value must be freed by the caller.

fn strlower_buf[link] 

fn strlower_buf(s: str, buf: []u8) str;

Converts all ASCII uppercase characters in a string to their lowercase representation, returning a new string. The new string data is stored in the supplied buffer. This function will abort if the buffer's length is too small to fit the entire string.

fn strupper[link] 

fn strupper(s: str) str;

Converts all ASCII lowercase characters in a string to their uppercase representation, returning a new string. The return value must be freed by the caller.

fn strupper_buf[link] 

fn strupper_buf(s: str, buf: []u8) str;

Converts all ASCII lowercase characters in a string to their uppercase representation, returning a new string. The new string data is stored in the supplied buffer. This function will abort if the buffer's length is too small to fit the entire string.

fn tolower[link] 

fn tolower(c: rune) rune;

Returns the lowercase form of an ASCII character, or the original character if it was not an uppercase letter (or was not ASCII).

fn toupper[link] 

fn toupper(c: rune) rune;

Returns the uppercase form of an ASCII character, or the original character if it was not a lowercase letter (or was not ASCII).

fn valid[link] 

fn valid(c: rune) bool;

Returns true if a rune is a valid ASCII character.

fn validstr[link] 

fn validstr(s: str) bool;

Returns true if all runes in a string are valid ASCII characters.