/
erlang.js
197 lines (190 loc) · 4.25 KB
/
erlang.js
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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
/*
Language: Erlang
Description: Erlang is a general-purpose functional language, with strict evaluation, single assignment, and dynamic typing.
Author: Nikolay Zakharov <nikolay.desh@gmail.com>, Dmitry Kovega <arhibot@gmail.com>
Website: https://www.erlang.org
Category: functional
*/
/** @type LanguageFn */
export default function(hljs) {
const BASIC_ATOM_RE = '[a-z\'][a-zA-Z0-9_\']*';
const FUNCTION_NAME_RE = '(' + BASIC_ATOM_RE + ':' + BASIC_ATOM_RE + '|' + BASIC_ATOM_RE + ')';
const ERLANG_RESERVED = {
keyword:
'after and andalso|10 band begin bnot bor bsl bzr bxor case catch cond div end fun if '
+ 'let not of orelse|10 query receive rem try when xor',
literal:
'false true'
};
const COMMENT = hljs.COMMENT('%', '$');
const NUMBER = {
className: 'number',
begin: '\\b(\\d+(_\\d+)*#[a-fA-F0-9]+(_[a-fA-F0-9]+)*|\\d+(_\\d+)*(\\.\\d+(_\\d+)*)?([eE][-+]?\\d+)?)',
relevance: 0
};
const NAMED_FUN = { begin: 'fun\\s+' + BASIC_ATOM_RE + '/\\d+' };
const FUNCTION_CALL = {
begin: FUNCTION_NAME_RE + '\\(',
end: '\\)',
returnBegin: true,
relevance: 0,
contains: [
{
begin: FUNCTION_NAME_RE,
relevance: 0
},
{
begin: '\\(',
end: '\\)',
endsWithParent: true,
returnEnd: true,
relevance: 0
// "contains" defined later
}
]
};
const TUPLE = {
begin: /\{/,
end: /\}/,
relevance: 0
// "contains" defined later
};
const VAR1 = {
begin: '\\b_([A-Z][A-Za-z0-9_]*)?',
relevance: 0
};
const VAR2 = {
begin: '[A-Z][a-zA-Z0-9_]*',
relevance: 0
};
const RECORD_ACCESS = {
begin: '#' + hljs.UNDERSCORE_IDENT_RE,
relevance: 0,
returnBegin: true,
contains: [
{
begin: '#' + hljs.UNDERSCORE_IDENT_RE,
relevance: 0
},
{
begin: /\{/,
end: /\}/,
relevance: 0
// "contains" defined later
}
]
};
const CHAR_LITERAL = {
scope: 'string',
match: /\$(\\([^0-9]|[0-9]{1,3}|)|.)/,
};
const BLOCK_STATEMENTS = {
beginKeywords: 'fun receive if try case',
end: 'end',
keywords: ERLANG_RESERVED
};
BLOCK_STATEMENTS.contains = [
COMMENT,
NAMED_FUN,
hljs.inherit(hljs.APOS_STRING_MODE, { className: '' }),
BLOCK_STATEMENTS,
FUNCTION_CALL,
hljs.QUOTE_STRING_MODE,
NUMBER,
TUPLE,
VAR1,
VAR2,
RECORD_ACCESS,
CHAR_LITERAL
];
const BASIC_MODES = [
COMMENT,
NAMED_FUN,
BLOCK_STATEMENTS,
FUNCTION_CALL,
hljs.QUOTE_STRING_MODE,
NUMBER,
TUPLE,
VAR1,
VAR2,
RECORD_ACCESS,
CHAR_LITERAL
];
FUNCTION_CALL.contains[1].contains = BASIC_MODES;
TUPLE.contains = BASIC_MODES;
RECORD_ACCESS.contains[1].contains = BASIC_MODES;
const DIRECTIVES = [
"-module",
"-record",
"-undef",
"-export",
"-ifdef",
"-ifndef",
"-author",
"-copyright",
"-doc",
"-vsn",
"-import",
"-include",
"-include_lib",
"-compile",
"-define",
"-else",
"-endif",
"-file",
"-behaviour",
"-behavior",
"-spec"
];
const PARAMS = {
className: 'params',
begin: '\\(',
end: '\\)',
contains: BASIC_MODES
};
return {
name: 'Erlang',
aliases: [ 'erl' ],
keywords: ERLANG_RESERVED,
illegal: '(</|\\*=|\\+=|-=|/\\*|\\*/|\\(\\*|\\*\\))',
contains: [
{
className: 'function',
begin: '^' + BASIC_ATOM_RE + '\\s*\\(',
end: '->',
returnBegin: true,
illegal: '\\(|#|//|/\\*|\\\\|:|;',
contains: [
PARAMS,
hljs.inherit(hljs.TITLE_MODE, { begin: BASIC_ATOM_RE })
],
starts: {
end: ';|\\.',
keywords: ERLANG_RESERVED,
contains: BASIC_MODES
}
},
COMMENT,
{
begin: '^-',
end: '\\.',
relevance: 0,
excludeEnd: true,
returnBegin: true,
keywords: {
$pattern: '-' + hljs.IDENT_RE,
keyword: DIRECTIVES.map(x => `${x}|1.5`).join(" ")
},
contains: [ PARAMS ]
},
NUMBER,
hljs.QUOTE_STRING_MODE,
RECORD_ACCESS,
VAR1,
VAR2,
TUPLE,
CHAR_LITERAL,
{ begin: /\.$/ } // relevance booster
]
};
}