prosody
713f8ee9e1b4
teal-src/util/jsonpointer.tl

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

Software / code / prosody

Annotate

teal-src/util/jsonpointer.tl @ 12361:713f8ee9e1b4

net.stun: Add tests for serialization/deserialization
author Matthew Wild <mwild1@gmail.com>
date Fri, 04 Mar 2022 16:13:05 +0000
parent 12131:b4c0efff8dd3
child 12496:87c3d45208ef
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
12131
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2 local enum ptr_error
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 "invalid-table"
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4 "invalid-path"
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5 end
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 local function unescape_token(escaped_token : string) : string
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
8 local unescaped = escaped_token:gsub("~1", "/"):gsub("~0", "~")
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9 return unescaped
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10 end
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 local function resolve_json_pointer(ref : table, path : string) : any, ptr_error
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 local ptr_len = #path+1
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 for part, pos in path:gmatch("/([^/]*)()") do
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15 local token = unescape_token(part)
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16 if not ref is table then
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 return nil
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18 end
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 local idx = next(ref)
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
20 local new_ref : any
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
21
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
22 if idx is string then
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
23 new_ref = ref[token]
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
24 elseif idx is integer then
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
25 local i = tonumber(token)
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
26 if token == "-" then i = #ref + 1 end
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
27 new_ref = ref[i]
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
28 else
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
29 return nil, "invalid-table"
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
30 end
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
31
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 if pos as integer == ptr_len then
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33 return new_ref
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34 elseif new_ref is table then
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
35 ref = new_ref
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
36 elseif not ref is table then
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
37 return nil, "invalid-path"
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
38 end
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
39
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
40 end
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
41 return ref
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
42 end
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
43
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
44 return {
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
45 resolve = resolve_json_pointer,
b4c0efff8dd3 util.jsonpointer: Resolve JSON Pointers per RFC 6901
Kim Alvefur <zash@zash.se>
parents:
diff changeset
46 }