An optimized C library for percent encoding/decoding text
This is a URI encoder/decoder written in C based on RFC3986. This module always encodes characters that are not unreserved. When decoding, invalid escape sequences are preserved.
The code is optimized for speed and has a reasonable test suite. It will also encode and decode null bytes in the middle of strings (assuming you calculated the string length correctly!).
#include <stdlib.h>
#include <string.h>
#include <uri_encode.h>
/* encode text */
const char *uri = "Some data!That Needs Encoding/";
size_t len = strlen(uri);
char buffer[ calc_buffer_size(uri) ];
buffer[0] = '\0';
uri_encode(uri, len, buffer);
/* decode text */
const char *encoded_uri = "Some%20data%21That%20Needs%20Decoding%2F";
size_t len = strlen(encoded_uri);
char decoded_uri[ len + 1 ];
decoded_uri[0] = '\0';
uri_decode(encoded_uri, len, decoded_uri);
Builds, tests and installs a static library: liburi_encode.a
clone https://github.com/dnmfarrell/Encode-URI-C.git
cd Encode-URI-C
make
make test
sudo make install
To install to a custom location, edit DESTDIR and PREFIX in Makefile.
sudo make uninstall
- URI-Encode-XS is a Perl XS module that uses the same C code.
- My article about the C code: The road to a 55x speedup with XS
© 2016
0.03
See LICENSE