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censor.lua: strip colours, configurable formatting

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Colour parsing code taken from prime.lua, and modified to strip.
This commit is contained in:
Přemysl Eric Janouch 2021-06-02 23:33:39 +02:00
parent 6f62b9c0c7
commit c5f49ab1e6
Signed by: p
GPG Key ID: A0420B94F92B9493
2 changed files with 22 additions and 2 deletions
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3
NEWS
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@ -9,6 +9,9 @@
* degesch: added support for IRCv3 chghost
* censor.lua: now stripping colours from censored messages;
their attributes are also configurable rather than always black on black
1.1.0 (2020-10-31) "What Do You Mean By 'This Isn't Germany'?"

21
plugins/degesch/censor.lua
View File

@ -1,7 +1,7 @@
--
-- censor.lua: black out certain users' messages
--
-- Copyright (c) 2016, Přemysl Eric Janouch <p@janouch.name>
-- Copyright (c) 2016 - 2021, Přemysl Eric Janouch <p@janouch.name>
--
-- Permission to use, copy, modify, and/or distribute this software for any
-- purpose with or without fee is hereby granted.
@ -38,6 +38,7 @@ local read_masks = function (v)
end
end
local quote
degesch.setup_config {
masks = {
type = "string_array",
@ -45,13 +46,29 @@ degesch.setup_config {
comment = "user masks (optionally \"/#channel\") to censor",
on_change = read_masks
},
quote = {
type = "string",
default = "\"\\x0301,01\"",
comment = "formatting prefix for censored messages",
on_change = function (v) quote = v end
},
}
local decolor = function (text)
local rebuilt, last = {""}, 1
for start in text:gmatch ('()\x03') do
table.insert (rebuilt, text:sub (last, start - 1))
local sub = text:sub (start + 1)
last = start + (sub:match ('^%d%d?,%d%d?()') or sub:match ('^%d?%d?()'))
end
return table.concat (rebuilt) .. text:sub (last)
end
local censor = function (line)
-- Taking a shortcut to avoid lengthy message reassembly
local start, text = line:match ("^(.- PRIVMSG .- :)(.*)$")
local ctcp, rest = text:match ("^(\x01%g+ )(.*)")
text = ctcp and ctcp .. "\x0301,01" .. rest or "\x0301,01" .. text
text = ctcp and ctcp .. quote .. decolor (rest) or quote .. decolor (text)
return start .. text
end