mirror of https://github.com/jkjoy/sunpeiwen.git
83 lines
1.5 KiB
JavaScript
83 lines
1.5 KiB
JavaScript
/*
|
|
Language: Augmented Backus-Naur Form
|
|
Author: Alex McKibben <alex@nullscope.net>
|
|
Website: https://tools.ietf.org/html/rfc5234
|
|
Audit: 2020
|
|
*/
|
|
|
|
/** @type LanguageFn */
|
|
function abnf(hljs) {
|
|
const regex = hljs.regex;
|
|
const IDENT = /^[a-zA-Z][a-zA-Z0-9-]*/;
|
|
|
|
const KEYWORDS = [
|
|
"ALPHA",
|
|
"BIT",
|
|
"CHAR",
|
|
"CR",
|
|
"CRLF",
|
|
"CTL",
|
|
"DIGIT",
|
|
"DQUOTE",
|
|
"HEXDIG",
|
|
"HTAB",
|
|
"LF",
|
|
"LWSP",
|
|
"OCTET",
|
|
"SP",
|
|
"VCHAR",
|
|
"WSP"
|
|
];
|
|
|
|
const COMMENT = hljs.COMMENT(/;/, /$/);
|
|
|
|
const TERMINAL_BINARY = {
|
|
scope: "symbol",
|
|
match: /%b[0-1]+(-[0-1]+|(\.[0-1]+)+)?/
|
|
};
|
|
|
|
const TERMINAL_DECIMAL = {
|
|
scope: "symbol",
|
|
match: /%d[0-9]+(-[0-9]+|(\.[0-9]+)+)?/
|
|
};
|
|
|
|
const TERMINAL_HEXADECIMAL = {
|
|
scope: "symbol",
|
|
match: /%x[0-9A-F]+(-[0-9A-F]+|(\.[0-9A-F]+)+)?/
|
|
};
|
|
|
|
const CASE_SENSITIVITY = {
|
|
scope: "symbol",
|
|
match: /%[si](?=".*")/
|
|
};
|
|
|
|
const RULE_DECLARATION = {
|
|
scope: "attribute",
|
|
match: regex.concat(IDENT, /(?=\s*=)/)
|
|
};
|
|
|
|
const ASSIGNMENT = {
|
|
scope: "operator",
|
|
match: /=\/?/
|
|
};
|
|
|
|
return {
|
|
name: 'Augmented Backus-Naur Form',
|
|
illegal: /[!@#$^&',?+~`|:]/,
|
|
keywords: KEYWORDS,
|
|
contains: [
|
|
ASSIGNMENT,
|
|
RULE_DECLARATION,
|
|
COMMENT,
|
|
TERMINAL_BINARY,
|
|
TERMINAL_DECIMAL,
|
|
TERMINAL_HEXADECIMAL,
|
|
CASE_SENSITIVITY,
|
|
hljs.QUOTE_STRING_MODE,
|
|
hljs.NUMBER_MODE
|
|
]
|
|
};
|
|
}
|
|
|
|
export { abnf as default };
|