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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
--!The Automatic Cross-platform Build Tool
--
-- XMake is free software; you can redistribute it and/or modify
-- it under the terms of the GNU Lesser General Public License as published by
-- the Free Software Foundation; either version 2.1 of the License, or
-- (at your option) any later version.
--
-- XMake 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 Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public License
-- along with XMake;
-- If not, see <a href="http://www.gnu.org/licenses/"> http://www.gnu.org/licenses/</a>
--
-- Copyright (C) 2009 - 2015, ruki All rights reserved.
--
-- @author ruki
-- @file io.lua
--
-- define module: io
local io = io or {}
-- load modules
local utils = require("base/utils")
-- save object with the level
function io._save_with_level(file, object, level)
-- check
assert(object)
-- save string
if type(object) == "string" then
file:write(string.format("%q", object))
-- save boolean
elseif type(object) == "boolean" then
file:write(tostring(object))
-- save number
elseif type(object) == "number" then
file:write(object)
-- save table
elseif type(object) == "table" then
-- save head
file:write("\n")
for l = 1, level do
file:write(" ")
end
file:write("{\n")
-- save body
local i = 0
for k, v in pairs(object) do
-- save spaces
for l = 1, level do
file:write(" ")
end
-- save separator
file:write(utils.ifelse(i == 0, " ", ", "), k, " = ")
-- save this key: value
if not io._save_with_level(file, v, level + 1) then
return false
end
-- save newline
file:write("\n")
i = i + 1
end
-- save tail
for l = 1, level do
file:write(" ")
end
file:write("}\n")
else
-- error
utils.error("invalid object type: %s", type(object))
return false
end
-- ok
return true
end
-- save object
function io.save(file, object, prefix)
-- save prefix
if prefix and type(prefix) == "string" then
file:write(prefix)
end
-- save it
return io._save_with_level(file, object, 0)
end
-- cat the given file
function io.cat(filepath)
-- open file
local file = io.open(filepath, "r")
if file then
-- show file
for line in file:lines() do
print(line)
end
-- exit file
file:close()
end
end
-- return module: io
return io
|
