| 1 |
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| 2 | /**
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| 3 | * Object of regular expressions for SWU strings in UTF-16
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| 4 | *
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| 5 | * @alias swu.re
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| 6 | * @property {string} symbol - regular expressions for a symbol
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| 7 | * @property {string} coord - regular expressions for a coordinate
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| 8 | * @property {string} sort - regular expressions for the sorting marker
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| 9 | * @property {string} box - regular expression for a signbox marker
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| 10 | * @property {string} prefix - regular expression for a sorting marker followed by one or more symbols
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| 11 | * @property {string} spatial - regular expression for a symbol followed by a coordinate
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| 12 | * @property {string} signbox - regular expression for a signbox marker, max coordinate and zero or more spatial symbols
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| 13 | * @property {string} sign - regular expression for an optional prefix followed by a signbox
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| 14 | * @property {string} sortable - regular expression for a mandatory prefix followed by a signbox
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| 15 | */
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| 16 | let re = {
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| 17 | 'symbol': '(?:(?:\uD8C0[\uDC01-\uDFFF])|(?:[\uD8C1-\uD8FC][\uDC00-\uDFFF])|(?:\uD8FD[\uDC00-\uDC80]))',
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| 18 | 'coord': '(?:\uD836[\uDC0C-\uDDFF]){2}',
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| 19 | 'sort': '\uD836\uDC00',
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| 20 | 'box': '\uD836[\uDC01-\uDC04]'
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| 21 | }
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| 22 | re.prefix = `(?:${re.sort}(?:${re.symbol})+)`;
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| 23 | re.spatial = `${re.symbol}${re.coord}`;
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| 24 | re.signbox = `${re.box}${re.coord}(?:${re.spatial})*`;
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| 25 | re.sign = `${re.prefix}?${re.signbox}`;
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| 26 | re.sortable = `${re.prefix}${re.signbox}`;
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| 27 |
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| 28 | export { re }
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