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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
if not modules then modules = { } end modules ['util-tab'] = {
version = 1.001,
comment = "companion to luat-lib.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
utilities = utilities or {}
utilities.tables = utilities.tables or { }
local tables = utilities.tables
local format, gmatch = string.format, string.gmatch
local concat, insert, remove = table.concat, table.insert, table.remove
local setmetatable, getmetatable, tonumber, tostring = setmetatable, getmetatable, tonumber, tostring
function tables.definetable(target) -- defines undefined tables
local composed, t, n = nil, { }, 0
for name in gmatch(target,"([^%.]+)") do
n = n + 1
if composed then
composed = composed .. "." .. name
else
composed = name
end
t[n] = format("%s = %s or { }",composed,composed)
end
return concat(t,"\n")
end
function tables.accesstable(target)
local t = _G
for name in gmatch(target,"([^%.]+)") do
t = t[name]
end
return t
end
function tables.removevalue(t,value) -- todo: n
if value then
for i=1,#t do
if t[i] == value then
remove(t,i)
-- remove all, so no: return
end
end
end
end
function tables.insertbeforevalue(t,value,extra)
for i=1,#t do
if t[i] == extra then
remove(t,i)
end
end
for i=1,#t do
if t[i] == value then
insert(t,i,extra)
return
end
end
insert(t,1,extra)
end
function tables.insertaftervalue(t,value,extra)
for i=1,#t do
if t[i] == extra then
remove(t,i)
end
end
for i=1,#t do
if t[i] == value then
insert(t,i+1,extra)
return
end
end
insert(t,#t+1,extra)
end
-- experimental
local function toxml(t,d,result)
for k, v in table.sortedpairs(t) do
if type(v) == "table" then
result[#result+1] = format("%s<%s>",d,k)
toxml(v,d.." ",result)
result[#result+1] = format("%s</%s>",d,k)
elseif tonumber(k) then
result[#result+1] = format("%s<entry n='%s'>%s</entry>",d,k,v,k)
else
result[#result+1] = format("%s<%s>%s</%s>",d,k,tostring(v),k)
end
end
end
function table.toxml(t,name,nobanner)
local noroot = name == false
local result = (nobanner or noroot) and { } or { "<?xml version='1.0' standalone='yes' ?>" }
if noroot then
toxml( t, "", result)
else
toxml( { [name or "root"] = t }, "", result)
end
return concat(result,"\n")
end
|
