Source Browser ?

1
if
 
not
 
modules
 
then
 
modules
 
=
 
{
 
}
 
end
 
modules
 
[
'
layo-ini
'
]
 
=
 
{
2    
version
   
=
 
1
.
001
,
3    
comment
   
=
 
"
companion to layo-ini.mkiv
"
,
4    
author
    
=
 
"
Hans Hagen, PRAGMA-ADE, Hasselt NL
"
,
5    
copyright
 
=
 
"
PRAGMA ADE / ConTeXt Development Team
"
,
6    
license
   
=
 
"
see context related readme files
"
7
}
8
9
-- We need to share information between the TeX and Lua end about the typographical
10
-- model. This happens here. This code might move.
11
12
local
 
texgetcount
  
=
 
tex
.
getcount
13
local
 
conditionals
 
=
 
tex
.
conditionals
14
15
layouts
 
=
 
{
16    
status
 
=
 
{
 
}
,
17
}
18
19
local
 
status
 
=
 
layouts
.
status
20
21
function
 
status
.
leftorrightpageaction
(
left
,
right
)
22    
if
 
left
 
=
=
 
nil
 
then
23        
left
,
 
right
 
=
 
false
,
 
true
24    
end
25    
if
 
not
 
conditionals
.
layoutisdoublesided
 
then
26        
return
 
left
,
 
right
27    
elseif
 
conditionals
.
layoutissinglesided
 
then
28        
return
 
left
,
 
right
29    
elseif
 
texgetcount
(
"
pagenoshift
"
)
 
%
 
2
 
=
=
 
0
 
then
30        
if
 
texgetcount
(
"
realpageno
"
)
 
%
 
2
 
=
=
 
0
 
then
31            
return
 
right
,
 
left
32        
else
33            
return
 
left
,
 
right
34        
end
35    
else
36        
if
 
texgetcount
(
"
realpageno
"
)
 
%
 
2
 
=
=
 
0
 
then
37            
return
 
left
,
 
right
38        
else
39            
return
 
right
,
 
left
40        
end
41    
end
42
end
43
44
function
 
status
.
isleftpage
(
r
)
45    
if
 
not
 
conditionals
.
layoutisdoublesided
 
then
46        
return
 
false
47    
elseif
 
conditionals
.
layoutissinglesided
 
then
48        
return
 
false
49    
elseif
 
texgetcount
(
"
pagenoshift
"
)
 
%
 
2
 
=
=
 
0
 
then
50        
return
 
(
r
 
or
 
texgetcount
(
"
realpageno
"
)
)
 
%
 
2
 
=
=
 
0
51    
else
52        
return
 
not
 
(
r
 
or
 
texgetcount
(
"
realpageno
"
)
)
 
%
 
2
 
=
=
 
0
53    
end
54
end
55