annotate mod_couchdb/couchdb/json.lib.lua @ 4483:c4f11a4b5ac7

mod_ogp: Add the ability to whitelist domains
author JC Brand <jc@opkode.com>
date Tue, 02 Mar 2021 13:36:10 +0100
parents 316d7c8e1fb0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
204
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
1
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
2 local type = type;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
3 local t_insert, t_concat, t_remove = table.insert, table.concat, table.remove;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
4 local s_char = string.char;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
5 local tostring, tonumber = tostring, tonumber;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
6 local pairs, ipairs = pairs, ipairs;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
7 local next = next;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
8 local error = error;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
9 local newproxy, getmetatable = newproxy, getmetatable;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
10 local print = print;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
11
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
12 --module("json")
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
13 local _M = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
14
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
15 local null = newproxy and newproxy(true) or {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
16 if getmetatable and getmetatable(null) then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
17 getmetatable(null).__tostring = function() return "null"; end;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
18 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
19 _M.null = null;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
20
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
21 local escapes = {
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
22 ["\""] = "\\\"", ["\\"] = "\\\\", ["\b"] = "\\b",
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
23 ["\f"] = "\\f", ["\n"] = "\\n", ["\r"] = "\\r", ["\t"] = "\\t"};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
24 local unescapes = {
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
25 ["\""] = "\"", ["\\"] = "\\", ["/"] = "/",
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
26 b = "\b", f = "\f", n = "\n", r = "\r", t = "\t"};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
27 for i=0,31 do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
28 local ch = s_char(i);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
29 if not escapes[ch] then escapes[ch] = ("\\u%.4X"):format(i); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
30 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
31
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
32 local valid_types = {
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
33 number = true,
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
34 string = true,
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
35 table = true,
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
36 boolean = true
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
37 };
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
38 local special_keys = {
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
39 __array = true;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
40 __hash = true;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
41 };
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
42
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
43 local simplesave, tablesave, arraysave, stringsave;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
44
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
45 function stringsave(o, buffer)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
46 -- FIXME do proper utf-8 and binary data detection
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
47 t_insert(buffer, "\""..(o:gsub(".", escapes)).."\"");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
48 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
49
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
50 function arraysave(o, buffer)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
51 t_insert(buffer, "[");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
52 if next(o) then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
53 for i,v in ipairs(o) do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
54 simplesave(v, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
55 t_insert(buffer, ",");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
56 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
57 t_remove(buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
58 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
59 t_insert(buffer, "]");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
60 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
61
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
62 function tablesave(o, buffer)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
63 local __array = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
64 local __hash = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
65 local hash = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
66 for i,v in ipairs(o) do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
67 __array[i] = v;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
68 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
69 for k,v in pairs(o) do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
70 local ktype, vtype = type(k), type(v);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
71 if valid_types[vtype] or v == null then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
72 if ktype == "string" and not special_keys[k] then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
73 hash[k] = v;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
74 elseif (valid_types[ktype] or k == null) and __array[k] == nil then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
75 __hash[k] = v;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
76 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
77 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
78 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
79 if next(__hash) ~= nil or next(hash) ~= nil or next(__array) == nil then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
80 t_insert(buffer, "{");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
81 local mark = #buffer;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
82 for k,v in pairs(hash) do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
83 stringsave(k, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
84 t_insert(buffer, ":");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
85 simplesave(v, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
86 t_insert(buffer, ",");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
87 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
88 if next(__hash) ~= nil then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
89 t_insert(buffer, "\"__hash\":[");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
90 for k,v in pairs(__hash) do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
91 simplesave(k, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
92 t_insert(buffer, ",");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
93 simplesave(v, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
94 t_insert(buffer, ",");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
95 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
96 t_remove(buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
97 t_insert(buffer, "]");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
98 t_insert(buffer, ",");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
99 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
100 if next(__array) then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
101 t_insert(buffer, "\"__array\":");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
102 arraysave(__array, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
103 t_insert(buffer, ",");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
104 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
105 if mark ~= #buffer then t_remove(buffer); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
106 t_insert(buffer, "}");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
107 else
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
108 arraysave(__array, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
109 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
110 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
111
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
112 function simplesave(o, buffer)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
113 local t = type(o);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
114 if t == "number" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
115 t_insert(buffer, tostring(o));
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
116 elseif t == "string" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
117 stringsave(o, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
118 elseif t == "table" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
119 tablesave(o, buffer);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
120 elseif t == "boolean" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
121 t_insert(buffer, (o and "true" or "false"));
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
122 else
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
123 t_insert(buffer, "null");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
124 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
125 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
126
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
127 function _M.encode(obj)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
128 local t = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
129 simplesave(obj, t);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
130 return t_concat(t);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
131 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
132
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
133 -----------------------------------
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
134
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
135
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
136 function _M.decode(json)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
137 local pos = 1;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
138 local current = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
139 local stack = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
140 local ch, peek;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
141 local function next()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
142 ch = json:sub(pos, pos);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
143 pos = pos+1;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
144 peek = json:sub(pos, pos);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
145 return ch;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
146 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
147
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
148 local function skipwhitespace()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
149 while ch and (ch == "\r" or ch == "\n" or ch == "\t" or ch == " ") do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
150 next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
151 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
152 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
153 local function skiplinecomment()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
154 repeat next(); until not(ch) or ch == "\r" or ch == "\n";
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
155 skipwhitespace();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
156 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
157 local function skipstarcomment()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
158 next(); next(); -- skip '/', '*'
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
159 while peek and ch ~= "*" and peek ~= "/" do next(); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
160 if not peek then error("eof in star comment") end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
161 next(); next(); -- skip '*', '/'
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
162 skipwhitespace();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
163 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
164 local function skipstuff()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
165 while true do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
166 skipwhitespace();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
167 if ch == "/" and peek == "*" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
168 skipstarcomment();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
169 elseif ch == "/" and peek == "*" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
170 skiplinecomment();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
171 else
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
172 return;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
173 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
174 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
175 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
176
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
177 local readvalue;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
178 local function readarray()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
179 local t = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
180 next(); -- skip '['
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
181 skipstuff();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
182 if ch == "]" then next(); return t; end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
183 t_insert(t, readvalue());
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
184 while true do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
185 skipstuff();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
186 if ch == "]" then next(); return t; end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
187 if not ch then error("eof while reading array");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
188 elseif ch == "," then next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
189 elseif ch then error("unexpected character in array, comma expected"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
190 if not ch then error("eof while reading array"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
191 t_insert(t, readvalue());
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
192 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
193 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
194
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
195 local function checkandskip(c)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
196 local x = ch or "eof";
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
197 if x ~= c then error("unexpected "..x..", '"..c.."' expected"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
198 next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
199 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
200 local function readliteral(lit, val)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
201 for c in lit:gmatch(".") do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
202 checkandskip(c);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
203 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
204 return val;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
205 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
206 local function readstring()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
207 local s = "";
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
208 checkandskip("\"");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
209 while ch do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
210 while ch and ch ~= "\\" and ch ~= "\"" do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
211 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
212 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
213 if ch == "\\" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
214 next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
215 if unescapes[ch] then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
216 s = s..unescapes[ch];
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
217 next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
218 elseif ch == "u" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
219 local seq = "";
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
220 for i=1,4 do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
221 next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
222 if not ch then error("unexpected eof in string"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
223 if not ch:match("[0-9a-fA-F]") then error("invalid unicode escape sequence in string"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
224 seq = seq..ch;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
225 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
226 s = s..s.char(tonumber(seq, 16)); -- FIXME do proper utf-8
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
227 next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
228 else error("invalid escape sequence in string"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
229 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
230 if ch == "\"" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
231 next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
232 return s;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
233 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
234 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
235 error("eof while reading string");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
236 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
237 local function readnumber()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
238 local s = "";
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
239 if ch == "-" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
240 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
241 if not ch:match("[0-9]") then error("number format error"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
242 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
243 if ch == "0" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
244 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
245 if ch:match("[0-9]") then error("number format error"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
246 else
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
247 while ch and ch:match("[0-9]") do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
248 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
249 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
250 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
251 if ch == "." then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
252 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
253 if not ch:match("[0-9]") then error("number format error"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
254 while ch and ch:match("[0-9]") do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
255 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
256 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
257 if ch == "e" or ch == "E" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
258 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
259 if ch == "+" or ch == "-" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
260 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
261 if not ch:match("[0-9]") then error("number format error"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
262 while ch and ch:match("[0-9]") do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
263 s = s..ch; next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
264 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
265 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
266 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
267 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
268 return tonumber(s);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
269 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
270 local function readmember(t)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
271 local k = readstring();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
272 checkandskip(":");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
273 t[k] = readvalue();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
274 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
275 local function fixobject(obj)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
276 local __array = obj.__array;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
277 if __array then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
278 obj.__array = nil;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
279 for i,v in ipairs(__array) do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
280 t_insert(obj, v);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
281 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
282 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
283 local __hash = obj.__hash;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
284 if __hash then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
285 obj.__hash = nil;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
286 local k;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
287 for i,v in ipairs(__hash) do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
288 if k ~= nil then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
289 obj[k] = v; k = nil;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
290 else
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
291 k = v;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
292 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
293 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
294 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
295 return obj;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
296 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
297 local function readobject()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
298 local t = {};
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
299 next(); -- skip '{'
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
300 skipstuff();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
301 if ch == "}" then next(); return t; end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
302 if not ch then error("eof while reading object"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
303 readmember(t);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
304 while true do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
305 skipstuff();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
306 if ch == "}" then next(); return fixobject(t); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
307 if not ch then error("eof while reading object");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
308 elseif ch == "," then next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
309 elseif ch then error("unexpected character in object, comma expected"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
310 if not ch then error("eof while reading object"); end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
311 readmember(t);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
312 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
313 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
314
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
315 function readvalue()
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
316 skipstuff();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
317 while ch do
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
318 if ch == "{" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
319 return readobject();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
320 elseif ch == "[" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
321 return readarray();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
322 elseif ch == "\"" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
323 return readstring();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
324 elseif ch:match("[%-0-9%.]") then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
325 return readnumber();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
326 elseif ch == "n" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
327 return readliteral("null", null);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
328 elseif ch == "t" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
329 return readliteral("true", true);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
330 elseif ch == "f" then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
331 return readliteral("false", false);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
332 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
333 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
334 error("eof while reading value");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
335 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
336 next();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
337 return readvalue();
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
338 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
339
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
340 function _M.test(object)
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
341 local encoded = encode(object);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
342 local decoded = decode(encoded);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
343 local recoded = encode(decoded);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
344 if encoded ~= recoded then
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
345 print("FAILED");
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
346 print("encoded:", encoded);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
347 print("recoded:", recoded);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
348 else
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
349 print(encoded);
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
350 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
351 return encoded ~= recoded;
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
352 end
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
353
316d7c8e1fb0 mod_couchdb: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
354 return _M;