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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
local reverse, upper, lower, find, byte, match, gmatch, gsub, sub, format, rep, char
do
local _obj_0 = string
reverse, upper, lower, find, byte, match, gmatch, gsub, sub, format, rep, char = _obj_0.reverse, _obj_0.upper, _obj_0.lower, _obj_0.find, _obj_0.byte, _obj_0.match, _obj_0.gmatch, _obj_0.gsub, _obj_0.sub, _obj_0.format, _obj_0.rep, _obj_0.char
end
local isplit
isplit = function(self, sep)
if sep == nil then
sep = '%s+'
end
local step
step = function(self, i)
local start = self.pos
if not (start) then
return
end
i = i + 1
local nl = find(self.str, self.sep, start)
self.pos = nl and (nl + 1) or nil
local line = sub(self.str, start, nl and (nl - 1) or #self.str)
return i, line, start, (nl and (nl - 1) or #self.str)
end
return step, {
str = self,
pos = 1,
sep = sep
}, 0
end
local lua_keywords = {
["and"] = true,
["break"] = true,
["do"] = true,
["else"] = true,
["elseif"] = true,
["end"] = true,
["false"] = true,
["for"] = true,
["function"] = true,
["goto"] = true,
["if"] = true,
["in"] = true,
["local"] = true,
["nil"] = true,
["not"] = true,
["or"] = true,
["repeat"] = true,
["return"] = true,
["then"] = true,
["true"] = true,
["until"] = true,
["while"] = true
}
local is_lua_id
is_lua_id = function(str)
return match(str, "^[_a-zA-Z][_a-zA-Z0-9]*$") and not lua_keywords[str]
end
local string2 = {
isplit = isplit,
uppercase = upper,
lowercase = lower,
reversed = reverse,
is_lua_id = is_lua_id,
capitalized = function(self)
return gsub(self, '%l', upper, 1)
end,
byte = byte,
bytes = function(self, i, j)
return {
byte(self, i or 1, j or -1)
}
end,
split = function(self, sep)
local _accum_0 = { }
local _len_0 = 1
for i, chunk in isplit(self, sep) do
_accum_0[_len_0] = chunk
_len_0 = _len_0 + 1
end
return _accum_0
end,
starts_with = function(self, s)
return sub(self, 1, #s) == s
end,
ends_with = function(self, s)
return #self >= #s and sub(self, #self - #s, -1) == s
end,
lines = function(self)
local _accum_0 = { }
local _len_0 = 1
for i, line in isplit(self, '\n') do
_accum_0[_len_0] = line
_len_0 = _len_0 + 1
end
return _accum_0
end,
line = function(self, line_num)
for i, line, start in isplit(self, '\n') do
if i == line_num then
return line
end
end
end,
line_at = function(self, pos)
assert(type(pos) == 'number', "Invalid string position")
for i, line, start, stop in isplit(self, '\n') do
if stop + 1 >= pos then
return line, i, (pos - start + 1)
end
end
end,
wrap = function(self, maxlen, buffer)
if maxlen == nil then
maxlen = 80
end
if buffer == nil then
buffer = 8
end
local lines = { }
local _list_0 = self:lines()
for _index_0 = 1, #_list_0 do
local line = _list_0[_index_0]
while #line > maxlen do
local chunk = sub(line, 1, maxlen)
local split = find(chunk, ' ', maxlen - buffer, true) or maxlen
chunk = sub(line, 1, split)
line = sub(line, split + 1, -1)
lines[#lines + 1] = chunk
end
lines[#lines + 1] = line
end
return table.concat(lines, "\n")
end,
as_lua = function(self)
local escaped = gsub(self, "\\", "\\\\")
escaped = gsub(escaped, "\n", "\\n")
escaped = gsub(escaped, '"', '\\"')
escaped = gsub(escaped, "[^ %g]", function(c)
return format("\\%03d", byte(c, 1))
end)
return '"' .. escaped .. '"'
end,
as_nomsu = function(self)
local escaped = gsub(self, "\\", "\\\\")
escaped = gsub(escaped, "\n", "\\n")
escaped = gsub(escaped, '"', '\\"')
escaped = gsub(escaped, "[^ %g]", function(c)
return format("\\%03d", byte(c, 1))
end)
return '"' .. escaped .. '"'
end,
as_lua_id = function(str)
str = gsub(str, "x([0-9A-F][0-9A-F])", "x78%1")
str = gsub(str, "%W", function(c)
if c == ' ' then
return '_'
else
return format("x%02X", byte(c))
end
end)
if not (is_lua_id(match(str, "^_*(.*)$"))) then
str = "_" .. str
end
return str
end,
from_lua_id = function(str)
if not (is_lua_id(match(str, "^_*(.*)$"))) then
str = sub(str, 2, -1)
end
str = gsub(str, "_", " ")
str = gsub(str, "x([0-9A-F][0-9A-F])", function(hex)
return char(tonumber(hex, 16))
end)
return str
end
}
for k, v in pairs(string) do
string2[k] = string2[k] or v
end
local _list_0 = {
"",
"_",
" ",
"return",
"asdf",
"one two",
"one_two",
"Hex2Dec",
"He-ec",
"\3"
}
for _index_0 = 1, #_list_0 do
local test = _list_0[_index_0]
local lua_id = string2.as_lua_id(test)
assert(is_lua_id(lua_id), "failed to convert '" .. tostring(test) .. "' to a valid Lua identifier (got '" .. tostring(lua_id) .. "')")
local roundtrip = string2.from_lua_id(lua_id)
assert(roundtrip == test, "Failed lua_id roundtrip: '" .. tostring(test) .. "' -> '" .. tostring(lua_id) .. "' -> '" .. tostring(roundtrip) .. "'")
end
return string2
|
