19.0.0 released Nov 08, 2023
Purpose: URL-encode string.
encode-url <string> to [ define ] <encoded string> \
[ output-length [ define ] <encoded length> ] \
[ input-length <length> ]
encode-url URL-encodes <string> and stores the result in <encoded string> which may be created with optional "define". <encoded string> is allocated memory.
Number <length> in the optional "input-length" clause lets you specify the number of bytes in <string> that will be encoded - if not specified or negative, it is the string length. "output-length" clause (also optional) lets you get the length of the encoded string in <encoded length>, which can be created with optional "define".
All bytes except alphanumeric and those from "-._~" (i.e. dash, dot, underscore and tilde) are encoded.
In this example, a string "str" is URL encoded and the result is in a "result" string variable, and its length is in "len_of_result" variable:
char str=" x=y?z& ";
encode-url str to define result output-length define len_of_result
The "result" is "%20%20x%3Dy%3Fz%26%20%20" and "len_of_result" is 24.
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