prosody
d59c842fe38e
util/template.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/template.lua @ 5012:d59c842fe38e

stanza_router: Warn if the global core_*_stanza() functions are called
author Kim Alvefur <zash@zash.se>
date Thu, 26 Jul 2012 04:30:30 +0200
parent 4495:c0f5c78cb817
child 5214:1430c6f36621
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3545
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
1
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
2 local st = require "util.stanza";
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
3 local lxp = require "lxp";
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
4 local setmetatable = setmetatable;
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
5 local pairs = pairs;
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
6 local ipairs = ipairs;
3545
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
7 local error = error;
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
8 local loadstring = loadstring;
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
9 local debug = debug;
4495
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
10 local t_remove = table.remove;
3545
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
11
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
12 module("template")
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
13
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
14 local parse_xml = (function()
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
15 local ns_prefixes = {
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
16 ["http://www.w3.org/XML/1998/namespace"] = "xml";
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
17 };
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
18 local ns_separator = "\1";
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
19 local ns_pattern = "^([^"..ns_separator.."]*)"..ns_separator.."?(.*)$";
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
20 return function(xml)
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
21 local handler = {};
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
22 local stanza = st.stanza("root");
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
23 function handler:StartElement(tagname, attr)
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
24 local curr_ns,name = tagname:match(ns_pattern);
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
25 if name == "" then
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
26 curr_ns, name = "", curr_ns;
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
27 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
28 if curr_ns ~= "" then
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
29 attr.xmlns = curr_ns;
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
30 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
31 for i=1,#attr do
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
32 local k = attr[i];
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
33 attr[i] = nil;
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
34 local ns, nm = k:match(ns_pattern);
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
35 if nm ~= "" then
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
36 ns = ns_prefixes[ns];
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
37 if ns then
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
38 attr[ns..":"..nm] = attr[k];
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
39 attr[k] = nil;
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
40 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
41 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
42 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
43 stanza:tag(name, attr);
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
44 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
45 function handler:CharacterData(data)
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
46 stanza:text(data);
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
47 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
48 function handler:EndElement(tagname)
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
49 stanza:up();
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
50 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
51 local parser = lxp.new(handler, "\1");
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
52 local ok, err, line, col = parser:parse(xml);
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
53 if ok then ok, err, line, col = parser:parse(); end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
54 --parser:close();
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
55 if ok then
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
56 return stanza.tags[1];
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
57 else
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
58 return ok, err.." (line "..line..", col "..col..")";
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
59 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
60 end;
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
61 end)();
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
62
4495
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
63 local function trim_xml(stanza)
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
64 for i=#stanza,1,-1 do
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
65 local child = stanza[i];
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
66 if child.name then
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
67 trim_xml(child);
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
68 else
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
69 child = child:gsub("^%s*", ""):gsub("%s*$", "");
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
70 stanza[i] = child;
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
71 if child == "" then t_remove(stanza, i); end
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
72 end
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
73 end
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
74 end
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
75
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
76 local function create_string_string(str)
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
77 str = ("%q"):format(str);
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
78 str = str:gsub("{([^}]*)}", function(s)
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
79 return '"..(data["'..s..'"]or"").."';
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
80 end);
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
81 return str;
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
82 end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
83 local function create_attr_string(attr, xmlns)
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
84 local str = '{';
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
85 for name,value in pairs(attr) do
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
86 if name ~= "xmlns" or value ~= xmlns then
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
87 str = str..("[%q]=%s;"):format(name, create_string_string(value));
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
88 end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
89 end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
90 return str..'}';
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
91 end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
92 local function create_clone_string(stanza, lookup, xmlns)
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
93 if not lookup[stanza] then
3640
4bc88bb748d1 util.template: Don't add stanza.last_add. 20% faster.
Waqas Hussain <waqas20@gmail.com>
parents: 3637
diff changeset
94 local s = ('setmetatable({name=%q,attr=%s,tags={'):format(stanza.name, create_attr_string(stanza.attr, xmlns));
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
95 -- add tags
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
96 for i,tag in ipairs(stanza.tags) do
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
97 s = s..create_clone_string(tag, lookup, stanza.attr.xmlns)..";";
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
98 end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
99 s = s..'};';
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
100 -- add children
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
101 for i,child in ipairs(stanza) do
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
102 if child.name then
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
103 s = s..create_clone_string(child, lookup, stanza.attr.xmlns)..";";
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
104 else
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
105 s = s..create_string_string(child)..";"
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
106 end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
107 end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
108 s = s..'}, stanza_mt)';
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
109 s = s:gsub('%.%.""', ""):gsub('([=;])""%.%.', "%1"):gsub(';"";', ";"); -- strip empty strings
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
110 local n = #lookup + 1;
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
111 lookup[n] = s;
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
112 lookup[stanza] = "_"..n;
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
113 end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
114 return lookup[stanza];
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
115 end
3546
cb1600dea3ad util.template: Optimized to be almost as fast as manual stanza building.
Waqas Hussain <waqas20@gmail.com>
parents: 3545
diff changeset
116 local stanza_mt = st.stanza_mt;
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
117 local function create_cloner(stanza, chunkname)
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
118 local lookup = {};
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
119 local name = create_clone_string(stanza, lookup, "");
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
120 local f = "local setmetatable,stanza_mt=...;return function(data)";
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
121 for i=1,#lookup do
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
122 f = f.."local _"..i.."="..lookup[i]..";";
3546
cb1600dea3ad util.template: Optimized to be almost as fast as manual stanza building.
Waqas Hussain <waqas20@gmail.com>
parents: 3545
diff changeset
123 end
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
124 f = f.."return "..name..";end";
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
125 local f,err = loadstring(f, chunkname);
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
126 if not f then error(err); end
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
127 return f(setmetatable, stanza_mt);
3546
cb1600dea3ad util.template: Optimized to be almost as fast as manual stanza building.
Waqas Hussain <waqas20@gmail.com>
parents: 3545
diff changeset
128 end
cb1600dea3ad util.template: Optimized to be almost as fast as manual stanza building.
Waqas Hussain <waqas20@gmail.com>
parents: 3545
diff changeset
129
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
130 local template_mt = { __tostring = function(t) return t.name end };
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
131 local function create_template(templates, text)
3545
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
132 local stanza, err = parse_xml(text);
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
133 if not stanza then error(err); end
4495
c0f5c78cb817 util.template: Refactoring to make the string->stanza conversion code more generic.
Waqas Hussain <waqas20@gmail.com>
parents: 3640
diff changeset
134 trim_xml(stanza);
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
135
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
136 local info = debug.getinfo(3, "Sl");
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
137 info = info and ("template(%s:%d)"):format(info.short_src:match("[^\\/]*$"), info.currentline) or "template(unknown)";
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
138
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
139 local template = setmetatable({ apply = create_cloner(stanza, info), name = info, text = text }, template_mt);
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
140 templates[text] = template;
3545
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
141 return template;
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
142 end
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
143
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
144 local templates = setmetatable({}, { __mode = 'k', __index = create_template });
3545
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
145 return function(text)
3637
bd491def3efb util.template: Rewritten to be much faster than the util.stanza stanza building API.
Waqas Hussain <waqas20@gmail.com>
parents: 3546
diff changeset
146 return templates[text];
3545
c85f9a4ae1c4 util.template: Initial commit. A template library for XML stanzas.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
147 end;