basb-cli
Version:
Blog as Second Brain!
36 lines (29 loc) • 1.12 kB
JavaScript
// https://docs.oracle.com/javase/specs/jls/se15/html/jls-3.html#jls-3.10
var decimalDigits = '[0-9](_*[0-9])*';
var frac = `\\.(${decimalDigits})`;
var hexDigits = '[0-9a-fA-F](_*[0-9a-fA-F])*';
export var NUMERIC = {
className: 'number',
variants: [
// DecimalFloatingPointLiteral
// including ExponentPart
{ begin: `(\\b(${decimalDigits})((${frac})|\\.)?|(${frac}))` +
`[eE][+-]?(${decimalDigits})[fFdD]?\\b` },
// excluding ExponentPart
{ begin: `\\b(${decimalDigits})((${frac})[fFdD]?\\b|\\.([fFdD]\\b)?)` },
{ begin: `(${frac})[fFdD]?\\b` },
{ begin: `\\b(${decimalDigits})[fFdD]\\b` },
// HexadecimalFloatingPointLiteral
{ begin: `\\b0[xX]((${hexDigits})\\.?|(${hexDigits})?\\.(${hexDigits}))` +
`[pP][+-]?(${decimalDigits})[fFdD]?\\b` },
// DecimalIntegerLiteral
{ begin: '\\b(0|[1-9](_*[0-9])*)[lL]?\\b' },
// HexIntegerLiteral
{ begin: `\\b0[xX](${hexDigits})[lL]?\\b` },
// OctalIntegerLiteral
{ begin: '\\b0(_*[0-7])*[lL]?\\b' },
// BinaryIntegerLiteral
{ begin: '\\b0[bB][01](_*[01])*[lL]?\\b' },
],
relevance: 0
};