Performs the inverse transformation of UrlEscape(), converting each percent‐encoded sequence of the form "%AB" into the character with the hexadecimal value 0xAB. It returns std::nullopt if any % is not followed by two hexadecimal digits.
Synopsis
Declared in <absl/strings/escaping.h>
[[nodiscard]]
std::optional<std::string>
UrlUnescape(std::string_view input);Description
UrlUnescape() is identical to UrlUnescapePlus() except that it does not unescape '+' to ' '.
Return Value
The unescaped string, or std::nullopt on malformed input.
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Note
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The return value should not be discarded. |
Parameters
Name |
Description |
input |
The percent‐encoded string to unescape. |
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