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Erlang escape uri for POST request
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%escape uri | |
escape_uri(S) when is_list(S) -> | |
escape_uri(unicode:characters_to_binary(S)); | |
escape_uri(<<C:8, Cs/binary>>) when C >= $a, C =< $z -> | |
[C] ++ escape_uri(Cs); | |
escape_uri(<<C:8, Cs/binary>>) when C >= $A, C =< $Z -> | |
[C] ++ escape_uri(Cs); | |
escape_uri(<<C:8, Cs/binary>>) when C >= $0, C =< $9 -> | |
[C] ++ escape_uri(Cs); | |
escape_uri(<<C:8, Cs/binary>>) when C == $. -> | |
[C] ++ escape_uri(Cs); | |
escape_uri(<<C:8, Cs/binary>>) when C == $- -> | |
[C] ++ escape_uri(Cs); | |
escape_uri(<<C:8, Cs/binary>>) when C == $_ -> | |
[C] ++ escape_uri(Cs); | |
escape_uri(<<C:8, Cs/binary>>) -> | |
escape_byte(C) ++ escape_uri(Cs); | |
escape_uri(<<>>) -> | |
"". | |
escape_byte(C) when C >= 0, C =< 255 -> | |
[$%, hex_digit(C bsr 4), hex_digit(C band 15)]. | |
hex_digit(N) when N >= 0, N =< 9 -> | |
N + $0; | |
hex_digit(N) when N > 9, N =< 15 -> | |
N + $a - 10. |
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