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(function (Prism) {
// https://cuelang.org/docs/references/spec/
// eslint-disable-next-line regexp/strict
var stringEscape = /\\(?:(?!\2)|\2(?:[^()\r\n]|\([^()]*\)))/.source;
// eslint-disable-next-line regexp/strict
var stringTypes =
/"""(?:[^\\"]|"(?!""\2)|<esc>)*"""/.source +
// eslint-disable-next-line regexp/strict
'|' +
/'''(?:[^\\']|'(?!''\2)|<esc>)*'''/.source +
// eslint-disable-next-line regexp/strict
'|' +
/"(?:[^\\\r\n"]|"(?!\2)|<esc>)*"/.source +
// eslint-disable-next-line regexp/strict
'|' +
/'(?:[^\\\r\n']|'(?!\2)|<esc>)*'/.source;
var stringLiteral = '(?:' + stringTypes.replace(/<esc>/g, stringEscape) + ')';
Prism.languages.cue = {
comment: {
pattern: /\/\/.*/,
greedy: true,
},
'string-literal': {
// eslint-disable-next-line regexp/strict
pattern: RegExp(
/(^|[^#"'\\])(#*)/.source + stringLiteral + /(?!["'])\2/.source
),
lookbehind: true,
greedy: true,
inside: {
// I'm using dirty hack here. We have to know the number hashes at the start of the string somehow,
// but we can't look back. So instead, we will use a lookahead, go to the end of the string, and
// capture the hashes at the end of the string.
escape: {
pattern:
/(?=[\s\S]*["'](#*)$)\\\1(?:U[a-fA-F0-9]{1,8}|u[a-fA-F0-9]{1,4}|x[a-fA-F0-9]{1,2}|\d{2,3}|[^(])/,
greedy: true,
alias: 'string',
},
interpolation: {
pattern: /(?=[\s\S]*["'](#*)$)\\\1\([^()]*\)/,
greedy: true,
inside: {
punctuation: /^\\#*\(|\)$/,
expression: {
pattern: /[\s\S]+/,
inside: null,
},
},
},
string: /[\s\S]+/,
},
},
keyword: {
pattern: /(^|[^\w$])(?:for|if|import|in|let|null|package)(?![\w$])/,
lookbehind: true,
},
boolean: {
pattern: /(^|[^\w$])(?:false|true)(?![\w$])/,
lookbehind: true,
},
builtin: {
pattern:
/(^|[^\w$])(?:bool|bytes|float|float(?:32|64)|u?int(?:8|16|32|64|128)?|number|rune|string)(?![\w$])/,
lookbehind: true,
},
attribute: {
pattern: /@[\w$]+(?=\s*\()/,
alias: 'function',
},
function: {
pattern: /(^|[^\w$])[a-z_$][\w$]*(?=\s*\()/i,
lookbehind: true,
},
number: {
pattern:
/(^|[^\w$.])(?:0b[01]+(?:_[01]+)*|0o[0-7]+(?:_[0-7]+)*|0[xX][0-9A-Fa-f]+(?:_[0-9A-Fa-f]+)*|(?:\d+(?:_\d+)*(?:\.(?:\d+(?:_\d+)*)?)?|\.\d+(?:_\d+)*)(?:[eE][+-]?\d+(?:_\d+)*)?(?:[KMGTP]i?)?)(?![\w$])/,
lookbehind: true,
},
operator: /\.{3}|_\|_|&&?|\|\|?|[=!]~|[<>=!]=?|[+\-*/?]/,
punctuation: /[()[\]{},.:]/,
};
Prism.languages.cue[
'string-literal'
].inside.interpolation.inside.expression.inside = Prism.languages.cue;
})(Prism);
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