Module: encoding.url

Source: ./encoding/url.reef

Overview

encoding/url - URL percent encoding and decoding

Implements RFC 3986 percent-encoding for URLs. Unreserved characters (A-Z, a-z, 0-9, -_.~) are not encoded. All other characters are encoded as %XX where XX is the hex value.

Usage: import encoding.url let encoded = url_encode("Hello World!") // "Hello%20World%21" let decoded = url_decode("Hello%20World%21") // "Hello World!"

Functions

fn get_hex_upper(): string

Hex digits for encoding

fn is_unreserved(c: char): bool

Check if character is unreserved (RFC 3986) Unreserved = A-Z / a-z / 0-9 / - / . / _ / ~

fn is_hex_digit(c: char): bool

Check if character is a valid hex digit

fn hex_value(c: char): int

Convert hex character to value (0-15)

fn count_encoded_length(s: string, encode_reserved: bool): int

Count how many bytes the encoded string will need

fn url_encode(s: string): string

Standard URL encoding - keeps path-safe characters

fn url_encode_component(s: string): string

Component encoding - encodes everything except unreserved

fn url_encode_form(s: string): string

Form encoding - like component but spaces become +

fn count_decoded_length(s: string): int

Count decoded length

fn url_decode(s: string): string

Standard URL decoding

fn url_decode_form(s: string): string

Form decoding - + becomes space

fn url_is_valid_encoded(s: string): bool

Check if string is validly percent-encoded

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