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Latin1
I'm living in Belgium and we use 3 official languages: Dutch, French and German. With the ISO-Latin-1 character set we can cover most of the characters used.
Our desktops have special keyboards which can handle these characters. But, quite a lot of developers prefer US keyboards and then it is often tedious to enter these accented characters.
So, I came up with a solution for Textadept!
I put the function specialcharinsert in my .textadept/init.lua:
--[[ This function uses a list of pairs:
The first element is a mnemonic code for the real character
The second element is the character in UTF-8.
Notice that you do not have to restrict yourself to characters.
--]]
local function specialcharinsert()
local chars = {'a', '\195\160',
'a', '\195\161',
'a', '\195\162',
'a', '\195\163',
'a', '\195\164',
'a', '\195\165',
'a', '\195\166',
'a', '\195\128',
'a', '\195\129',
'a', '\195\130',
'a', '\195\131',
'a', '\195\132',
'a', '\195\133',
'a', '\195\134',
'c', '\195\167',
'c', '\195\135',
'e', '\195\168',
'e', '\195\169',
'e', '\195\170',
'e', '\195\171',
'e', '\195\136',
'e', '\195\137',
'e', '\195\138',
'e', '\195\139',
'i', '\195\172',
'i', '\195\173',
'i', '\195\174',
'i', '\195\175',
'i', '\195\140',
'i', '\195\141',
'i', '\195\142',
'i', '\195\143',
'o', '\195\178',
'o', '\195\179',
'o', '\195\180',
'o', '\195\181',
'o', '\195\182',
'o', '\195\184',
'o', '\195\146',
'o', '\195\147',
'o', '\195\148',
'o', '\195\149',
'o', '\195\150',
'o', '\195\152',
'n', '\195\177',
'n', '\195\145',
'u', '\195\185',
'u', '\195\186',
'u', '\195\187',
'u', '\195\188',
'u', '\195\153',
'u', '\195\154',
'u', '\195\155',
'u', '\195\156',
'u', '\195\157',
'u', '\195\189',
'u', '\195\191',
'u', '\195\157',
'u', '\195\189',
'u', '\195\191',
'<', '\194\171',
'<', '\194\171\194\187',
'<', '\194\187',
'>', '\194\171',
'>', '\194\171\194\187',
'>', '\194\187',
'1', '\194\178',
'1', '\194\179',
'1', '\194\185',
'1', '\194\186',
'1', '\194\188',
'1', '\194\189',
'1', '\194\190',
'1', '\194\170',
'+', '\194\177',
'+', '\195\151',
'+', '\195\183',
'.', '\194\161',
'.', '\194\162',
'.', '\194\163',
'.', '\194\164',
'.', '\194\165',
'.', '\194\166',
'.', '\194\167',
'.', '\194\168',
'.', '\194\169',
'.', '\194\170',
'.', '\194\172',
'.', '\194\173',
'.', '\194\174',
'.', '\194\175',
'.', '\194\176',
'.', '\194\180',
'.', '\194\181',
'.', '\194\182',
'.', '\194\183',
'.', '\194\184',
'.', '\194\191',
'.', '\195\158',
'.', '\195\159',
'.', '\195\190',}
local button, i = ui.dialogs.filteredlist{
title = 'Chars', columns = {'Mnemo', 'Char'}, items = chars
}
if button == 1 then
buffer:insert_text(-1, chars[i * 2])
buffer:char_right()
end
end
You can bring this functionality in the user interface by binding it to a key or by putting it in the context menu.
E.g., to bind specialcharinsert to Ctrl+1, put the following line in
.textadept/init.lua:
keys['ctrl+1'] = specialcharinsert
This functionality is not restricted to ISO-Latin-1. Let us add Unicode
Character GREEK SMALL LETTER ALPHA (U+03B1) with mnemonic letter a. The
UTF-8 code for GREEK SMALL LETTER ALPHA is 0xCE 0xB1 (hexadecimal notation).
From Lua 5.2 onwards, we can enter in the chars table the line
'a', '\xCE\xB1',
on an appropriate place in .textadept/init.lua
Robert G. from the Textadept Mailing List made several suggestions to make this code snippet more useful and instructive.
Thank you
Richard Philips