vue hello world项目
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/**
* @param {string} value
* @returns {RegExp}
* */
/**
* @param {RegExp | string } re
* @returns {string}
*/
function source(re) {
if (!re) return null;
if (typeof re === "string") return re;
return re.source;
}
/**
* @param {RegExp | string } re
* @returns {string}
*/
function lookahead(re) {
return concat('(?=', re, ')');
}
/**
* @param {...(RegExp | string) } args
* @returns {string}
*/
function concat(...args) {
const joined = args.map((x) => source(x)).join("");
return joined;
}
/*
Language: Groovy
Author: Guillaume Laforge <glaforge@gmail.com>
Description: Groovy programming language implementation inspired from Vsevolod's Java mode
Website: https://groovy-lang.org
*/
function variants(variants, obj = {}) {
obj.variants = variants;
return obj;
}
function groovy(hljs) {
const IDENT_RE = '[A-Za-z0-9_$]+';
const COMMENT = variants([
hljs.C_LINE_COMMENT_MODE,
hljs.C_BLOCK_COMMENT_MODE,
hljs.COMMENT(
'/\\*\\*',
'\\*/',
{
relevance: 0,
contains: [
{
// eat up @'s in emails to prevent them to be recognized as doctags
begin: /\w+@/,
relevance: 0
},
{
className: 'doctag',
begin: '@[A-Za-z]+'
}
]
}
)
]);
const REGEXP = {
className: 'regexp',
begin: /~?\/[^\/\n]+\//,
contains: [ hljs.BACKSLASH_ESCAPE ]
};
const NUMBER = variants([
hljs.BINARY_NUMBER_MODE,
hljs.C_NUMBER_MODE
]);
const STRING = variants([
{
begin: /"""/,
end: /"""/
},
{
begin: /'''/,
end: /'''/
},
{
begin: "\\$/",
end: "/\\$",
relevance: 10
},
hljs.APOS_STRING_MODE,
hljs.QUOTE_STRING_MODE
],
{
className: "string"
}
);
return {
name: 'Groovy',
keywords: {
built_in: 'this super',
literal: 'true false null',
keyword:
'byte short char int long boolean float double void ' +
// groovy specific keywords
'def as in assert trait ' +
// common keywords with Java
'abstract static volatile transient public private protected synchronized final ' +
'class interface enum if else for while switch case break default continue ' +
'throw throws try catch finally implements extends new import package return instanceof'
},
contains: [
hljs.SHEBANG({
binary: "groovy",
relevance: 10
}),
COMMENT,
STRING,
REGEXP,
NUMBER,
{
className: 'class',
beginKeywords: 'class interface trait enum',
end: /\{/,
illegal: ':',
contains: [
{
beginKeywords: 'extends implements'
},
hljs.UNDERSCORE_TITLE_MODE
]
},
{
className: 'meta',
begin: '@[A-Za-z]+',
relevance: 0
},
{
// highlight map keys and named parameters as attrs
className: 'attr',
begin: IDENT_RE + '[ \t]*:',
relevance: 0
},
{
// catch middle element of the ternary operator
// to avoid highlight it as a label, named parameter, or map key
begin: /\?/,
end: /:/,
relevance: 0,
contains: [
COMMENT,
STRING,
REGEXP,
NUMBER,
'self'
]
},
{
// highlight labeled statements
className: 'symbol',
begin: '^[ \t]*' + lookahead(IDENT_RE + ':'),
excludeBegin: true,
end: IDENT_RE + ':',
relevance: 0
}
],
illegal: /#|<\//
};
}
module.exports = groovy;