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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
--GregorioTeX Lua file.
--Copyright (C) 2008 Elie Roux <elie.roux@telecom-bretagne.eu>
--
--This program 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.
--
--This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
-- this file contains lua functions used by GregorioTeX when called with LuaTeX.
local hlist = node.id('hlist')
local vlist = node.id('vlist')
local glyph = node.id('glyph')
local gregorioattr=987 -- the number declared with gregorioattr
-- in each function we check if we really are inside a score, which we can see with the gregorioattr being set or not
function addhyphenandremovedumblines(h, groupcode, glyphes)
local lastseennode=nil
local potentialdashvalue=1
local nopotentialdashvalue=2
local adddash=false
local tempnode=node.new(glyph, 0)
local dashnode
tempnode.font=0
tempnode.char=tex.defaulthyphenchar
dashnode=node.hpack(tempnode)
dashnode.shift=0
--% we explore the lines
for a in node.traverse_id(hlist, h) do
-- the next two lines are to remove the dumb lines
if node.has_attribute(a.list, gregorioattr) then
if node.count(hlist, a.list) == 2 then
node.remove(h, a)
else
for b in node.traverse_id(hlist, a.list) do
--if node.has_attribute(b, attributeid, 2) then
-- texio.write_nl('prout')
--end
if node.has_attribute(b, gregorioattr, potentialdashvalue) then
adddash=true
lastseennode=b
--attr = b.attr.next
-- texio.write_nl('ATTR number = ' .. attr.number .. ' value = ' .. attr.value)
-- here we set up the font number of the hyphen
if (tempnode.font == 0) then
for g in node.traverse_id(glyph, b.list) do
tempnode.font = g.font
break
end
end
if dashnode.shift==0 then
dashnode.shift = b.shift
end
-- if we encounter a text that doesn't need a dash, we acknowledge it
elseif node.has_attribute(b, gregorioattr, nopotentialdashvalue) then
adddash=false
--attr = b.attr.next
-- texio.write_nl('ATTR number = ' .. attr.number .. ' value = ' .. attr.value)
end
end
if adddash==true then
local temp= node.copy(dashnode)
node.insert_after(a.list, lastseennode, temp)
addash=false
end
end
-- we reinitialize the shift value, because it may change according to the line
dashnode.shift=0
end
end
return true
end
function gregorioCallback(h, groupcode, glyphes)
addhyphenandremovedumblines(h, groupcode, glyphes)
return true
end
function atScoreBeggining()
callback.register('post_linebreak_filter', gregorioCallback)
end
|
