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31 lines
1.5 KiB
31 lines
1.5 KiB
3 years ago
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import { lowerCase } from "lower-case";
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// Support camel case ("camelCase" -> "camel Case" and "CAMELCase" -> "CAMEL Case").
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var DEFAULT_SPLIT_REGEXP = [/([a-z0-9])([A-Z])/g, /([A-Z])([A-Z][a-z])/g];
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// Remove all non-word characters.
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var DEFAULT_STRIP_REGEXP = /[^A-Z0-9]+/gi;
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/**
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* Normalize the string into something other libraries can manipulate easier.
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*/
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export function noCase(input, options) {
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if (options === void 0) { options = {}; }
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var _a = options.splitRegexp, splitRegexp = _a === void 0 ? DEFAULT_SPLIT_REGEXP : _a, _b = options.stripRegexp, stripRegexp = _b === void 0 ? DEFAULT_STRIP_REGEXP : _b, _c = options.transform, transform = _c === void 0 ? lowerCase : _c, _d = options.delimiter, delimiter = _d === void 0 ? " " : _d;
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var result = replace(replace(input, splitRegexp, "$1\0$2"), stripRegexp, "\0");
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var start = 0;
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var end = result.length;
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// Trim the delimiter from around the output string.
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while (result.charAt(start) === "\0")
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start++;
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while (result.charAt(end - 1) === "\0")
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end--;
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// Transform each token independently.
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return result.slice(start, end).split("\0").map(transform).join(delimiter);
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}
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/**
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* Replace `re` in the input string with the replacement value.
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*/
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function replace(input, re, value) {
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if (re instanceof RegExp)
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return input.replace(re, value);
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return re.reduce(function (input, re) { return input.replace(re, value); }, input);
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}
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//# sourceMappingURL=index.js.map
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