prosody
34ac05f6bd10
util/hex.lua

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util/hex.lua @ 13744:34ac05f6bd10 13.0

core.configmanager: Fix reporting delayed warnings from global section A Credential in the global section would be stored at delayed_warnings["*/secret"], but get("example.com","secret") would look for delayed_warnings["example.com/secret"] Storing the warnings in the config itself has the unfortunate side-effect that the config now contains util.error objects, which may be awkward if something bypasses get(). Should rawget() also do this filtering? getconfig() too? Currently this only affects prosodyctl, so maybe it won't be much of a problem.
author Kim Alvefur <zash@zash.se>
date Sat, 22 Feb 2025 00:08:18 +0100
parent 12355:a0ff5c438e9d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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1 local s_char = string.char;
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ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
Kim Alvefur <zash@zash.se>
parents: 6384
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2 local s_format = string.format;
ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
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parents: 6384
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3 local s_gsub = string.gsub;
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442019e955dc util.hex: Normalize hex to lowercase and discard non-hex input
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4 local s_lower = string.lower;
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ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
Kim Alvefur <zash@zash.se>
parents: 6384
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5
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parents: 6384
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6 local char_to_hex = {};
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Kim Alvefur <zash@zash.se>
parents: 6384
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7 local hex_to_char = {};
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76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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8
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ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
Kim Alvefur <zash@zash.se>
parents: 6384
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9 do
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parents: 6384
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10 local char, hex;
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parents: 6384
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11 for i = 0,255 do
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parents: 6384
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12 char, hex = s_char(i), s_format("%02x", i);
ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
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parents: 6384
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13 char_to_hex[char] = hex;
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parents: 6384
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14 hex_to_char[hex] = char;
ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
Kim Alvefur <zash@zash.se>
parents: 6384
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15 end
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76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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16 end
76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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17
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3f4809d01783 util.hex: Use locals!
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parents: 6375
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18 local function to(s)
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19 return (s_gsub(s, ".", char_to_hex));
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Matthew Wild <mwild1@gmail.com>
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20 end
76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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21
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22 local function from(s)
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23 return (s_gsub(s_lower(s), "%X*(%x%x)%X*", hex_to_char));
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Matthew Wild <mwild1@gmail.com>
parents:
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24 end
76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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25
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parents: 6802
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26 return {
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27 encode = to, decode = from;
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parents: 6802
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28 -- COMPAT w/pre-0.12:
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parents: 6802
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29 to = to, from = from;
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parents: 6802
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30 };