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
|
-- Copyright 2020 Christian Hesse
-- Mikrotik RouterOS script LPeg lexer.
local l = require('lexer')
local token, word_match = l.token, l.word_match
local P, R, S = lpeg.P, lpeg.R, lpeg.S
local M = {_NAME = 'routeros'}
-- Whitespace.
local ws = token(l.WHITESPACE, l.space^1)
-- Comments.
local comment = token(l.COMMENT, '#' * l.nonnewline^0)
-- Strings.
local string = token(l.STRING, l.delimited_range('"'))
-- Numbers.
local number = token(l.NUMBER, l.float + l.integer)
-- Keywords.
local keyword = token(l.KEYWORD, word_match({
-- control
':delay',
':do', 'on-error', 'while',
':error',
':foreach', 'in', 'do',
':for', 'from', 'to', 'step',
':if', 'do', 'else',
':return',
':while', 'do',
-- menu specific commands
'add',
'disable',
'edit',
'enable',
'export',
'find',
'get',
'info',
'monitor',
'print', 'append', 'as-value', 'brief', 'count-only', 'detail', 'file',
'follow', 'follow-only', 'from', 'interval', 'terse', 'value-list',
'where', 'without-paging',
'remove',
'set',
-- output & string handling
':beep',
':blink',
':environment',
':execute',
':find',
':len',
':log', 'alert', 'critical', 'debug', 'emergency', 'error', 'info',
'notice', 'warning',
':parse',
':pick',
':put',
':terminal',
':time',
':typeof',
-- variable declaration
':global',
':local',
':set',
-- variable casting
':toarray',
':tobool',
':toid',
':toip',
':toip6',
':tonum',
':tostr',
':totime',
-- boolean values and logical operators
'false', 'no',
'true', 'yes',
'and',
'in',
'or',
-- networking
':ping',
':resolve'
}, ':-'))
-- Identifiers.
local identifier = token(l.IDENTIFIER, l.word)
-- Variables.
local variable = token(l.VARIABLE,
'$' * (S('!#?*@$') + l.digit^1 + l.word +
l.delimited_range('{}', true, true, true)))
-- Operators.
local operator = token(l.OPERATOR, S('=!%<>+-/*&|~.,;()[]{}'))
M._rules = {
{'whitespace', ws},
{'keyword', keyword},
{'identifier', identifier},
{'string', string},
{'comment', comment},
{'number', number},
{'variable', variable},
{'operator', operator},
}
M._foldsymbols = {
_patterns = {'[a-z]+', '[{}]', '#'},
[l.KEYWORD] = { },
[l.OPERATOR] = {['{'] = 1, ['}'] = -1},
[l.COMMENT] = {['#'] = l.fold_line_comments('#')}
}
return M
|
