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
|
local info = {
version = 1.002,
comment = "scintilla lpeg lexer for json",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files",
}
local global, string, table, lpeg = _G, string, table, lpeg
local P, R, S, V = lpeg.P, lpeg.R, lpeg.S, lpeg.V
local type = type
local lexer = require("scite-context-lexer")
local context = lexer.context
local patterns = context.patterns
local token = lexer.token
local exact_match = lexer.exact_match
local jsonlexer = lexer.new("json","scite-context-lexer-json")
local whitespace = jsonlexer.whitespace
local anything = patterns.anything
local comma = P(",")
local colon = P(":")
local escape = P("\\")
----- single = P("'")
local double = P('"')
local openarray = P('[')
local closearray = P(']')
local openhash = P('{')
local closehash = P('}')
----- lineending = S("\n\r")
local space = S(" \t\n\r\f")
local spaces = space^1
local operator = S(':,{}[]')
local fence = openarray + closearray + openhash + closehash
local escape_un = P("\\u") / "0x" * S("09","AF","af")
local escape_bs = P([[\]]) * P(1)
local content = (escape_un + escape_bs + (1-double))^0
local reserved = P("true")
+ P("false")
+ P("null")
local integer = P("-")^-1 * (patterns.hexadecimal + patterns.decimal)
local float = patterns.float
local t_number = token("number", float + integer)
* (token("error",R("AZ","az","__")^1))^0
local t_spacing = token(whitespace, space^1)
local t_optionalws = token("default", space^1)^0
local t_operator = token("special", operator)
local t_string = token("operator",double)
* token("string",content)
* token("operator",double)
local t_key = token("operator",double)
* token("text",content)
* token("operator",double)
* t_optionalws
* token("operator",colon)
local t_fences = token("operator",fence) -- grouping
local t_reserved = token("primitive",reserved)
local t_rest = token("default",anything)
jsonlexer._rules = {
{ "whitespace", t_spacing },
{ "reserved", t_reserved },
{ "key", t_key },
{ "number", t_number },
{ "string", t_string },
{ "fences", t_fences },
{ "operator", t_operator },
{ "rest", t_rest },
}
jsonlexer._tokenstyles = context.styleset
jsonlexer._foldpattern = fence
jsonlexer._foldsymbols = {
_patterns = {
"{", "}",
"[", "]",
},
["grouping"] = {
["{"] = 1, ["}"] = -1,
["["] = 1, ["]"] = -1,
},
}
return jsonlexer
|
