blob: 1b8416053d7549b3b7de7fc33f262cfb6cd921d8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
--GregorioTeX Symbols Lua support file.
--
--Copyright (C) 2016 The Gregorio Project (see CONTRIBUTORS.md)
--
--This file is part of Gregorio.
--
--Gregorio is free software: you can redistribute it and/or modify
--it under the terms of the GNU General Public License as published by
--the Free Software Foundation, either version 3 of the License, or
--(at your option) any later version.
--
--Gregorio is distributed in the hope that it will be useful,
--but WITHOUT ANY WARRANTY; without even the implied warranty of
--MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
--GNU General Public License for more details.
--
--You should have received a copy of the GNU General Public License
--along with Gregorio. If not, see <http://www.gnu.org/licenses/>.
-- this file contains lua functions to support signs used by GregorioTeX.
-- GREGORIO_VERSION 4.1.2
local err = gregoriotex.module.err
local warn = gregoriotex.module.warn
local info = gregoriotex.module.info
local log = gregoriotex.module.log
local catcode_at_letter = luatexbase.catcodetables['gre@atletter']
local number_to_letter = gregoriotex.number_to_letter
local special_characters = {}
local next_special = 0
function gregoriotex.define_special_character(sequence)
local substitution = special_characters[sequence]
if substitution == nil then
substitution = string.gsub(tostring(next_special), '[0-9]', number_to_letter)
special_characters[sequence] = substitution
next_special = next_special + 1
end
tex.print(catcode_at_letter,
string.format([[\gdef\gre@special@%s]], substitution))
end
function gregoriotex.undefine_special_character(sequence)
local substitution = special_characters[sequence]
if substitution ~= nil then
special_characters[sequence] = nil
tex.print(catcode_at_letter,
string.format([[\let\gre@special@%s\undefined\relax ]], substitution))
end
end
function gregoriotex.special_character(sequence)
local substitution = special_characters[sequence]
if substitution ~= nil then
tex.print(catcode_at_letter, string.format([[\gre@special@%s\relax ]], substitution))
else
tex.print(sequence)
end
end
|
