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Diffstat (limited to 'node_modules/fbjs/lib/UnicodeUtilsExtra.js.flow')
| -rw-r--r-- | node_modules/fbjs/lib/UnicodeUtilsExtra.js.flow | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/node_modules/fbjs/lib/UnicodeUtilsExtra.js.flow b/node_modules/fbjs/lib/UnicodeUtilsExtra.js.flow deleted file mode 100644 index dc3ecb70a..000000000 --- a/node_modules/fbjs/lib/UnicodeUtilsExtra.js.flow +++ /dev/null @@ -1,184 +0,0 @@ -/** - * Copyright (c) 2013-present, Facebook, Inc. - * - * This source code is licensed under the MIT license found in the - * LICENSE file in the root directory of this source tree. - * - * @providesModule UnicodeUtilsExtra - * @typechecks - */ - -/** - * Unicode-enabled extra utility functions not always needed. - */ - -'use strict'; - -const UnicodeUtils = require('./UnicodeUtils'); - -/** - * @param {number} codePoint Valid Unicode code-point - * @param {number} len Zero-padded minimum width of result - * @return {string} A zero-padded hexadecimal string (00XXXX) - */ -function zeroPaddedHex(codePoint, len) { - let codePointHex = codePoint.toString(16).toUpperCase(); - let numZeros = Math.max(0, len - codePointHex.length); - var result = ''; - for (var i = 0; i < numZeros; i++) { - result += '0'; - } - result += codePointHex; - return result; -} - -/** - * @param {number} codePoint Valid Unicode code-point - * @return {string} A formatted Unicode code-point string - * of the format U+XXXX, U+XXXXX, or U+XXXXXX - */ -function formatCodePoint(codePoint) { - codePoint = codePoint || 0; // NaN --> 0 - var formatted = ''; - if (codePoint <= 0xFFFF) { - formatted = zeroPaddedHex(codePoint, 4); - } else { - formatted = codePoint.toString(16).toUpperCase(); - } - return 'U+' + formatted; -} - -/** - * Get a list of formatted (string) Unicode code-points from a String - * - * @param {string} str Valid Unicode string - * @return {array<string>} A list of formatted code-point strings - */ -function getCodePointsFormatted(str) { - const codePoints = UnicodeUtils.getCodePoints(str); - return codePoints.map(formatCodePoint); -} - -const specialEscape = { - 0x07: '\\a', - 0x08: '\\b', - 0x0C: '\\f', - 0x0A: '\\n', - 0x0D: '\\r', - 0x09: '\\t', - 0x0B: '\\v', - 0x22: '\\"', - 0x5c: '\\\\' -}; - -/** - * Returns a double-quoted PHP string with all non-printable and - * non-US-ASCII sequences escaped. - * - * @param {string} str Valid Unicode string - * @return {string} Double-quoted string with Unicode sequences escaped - */ -function phpEscape(s) { - var result = '"'; - for (let cp of UnicodeUtils.getCodePoints(s)) { - let special = specialEscape[cp]; - if (special !== undefined) { - result += special; - } else if (cp >= 0x20 && cp <= 0x7e) { - result += String.fromCodePoint(cp); - } else if (cp <= 0xFFFF) { - result += '\\u{' + zeroPaddedHex(cp, 4) + '}'; - } else { - result += '\\u{' + zeroPaddedHex(cp, 6) + '}'; - } - } - result += '"'; - return result; -} - -/** - * Returns a double-quoted Java or JavaScript string with all - * non-printable and non-US-ASCII sequences escaped. - * - * @param {string} str Valid Unicode string - * @return {string} Double-quoted string with Unicode sequences escaped - */ -function jsEscape(s) { - var result = '"'; - for (var i = 0; i < s.length; i++) { - let cp = s.charCodeAt(i); - let special = specialEscape[cp]; - if (special !== undefined) { - result += special; - } else if (cp >= 0x20 && cp <= 0x7e) { - result += String.fromCodePoint(cp); - } else { - result += '\\u' + zeroPaddedHex(cp, 4); - } - } - result += '"'; - return result; -} - -function c11Escape(s) { - var result = ''; - for (let cp of UnicodeUtils.getCodePoints(s)) { - let special = specialEscape[cp]; - if (special !== undefined) { - result += special; - } else if (cp >= 0x20 && cp <= 0x7e) { - result += String.fromCodePoint(cp); - } else if (cp <= 0xFFFF) { - result += '\\u' + zeroPaddedHex(cp, 4); - } else { - result += '\\U' + zeroPaddedHex(cp, 8); - } - } - return result; -} - -/** - * Returns a double-quoted C string with all non-printable and - * non-US-ASCII sequences escaped. - * - * @param {string} str Valid Unicode string - * @return {string} Double-quoted string with Unicode sequences escaped - */ -function cEscape(s) { - return 'u8"' + c11Escape(s) + '"'; -} - -/** - * Returns a double-quoted Objective-C string with all non-printable - * and non-US-ASCII sequences escaped. - * - * @param {string} str Valid Unicode string - * @return {string} Double-quoted string with Unicode sequences escaped - */ -function objcEscape(s) { - return '@"' + c11Escape(s) + '"'; -} - -/** - * Returns a double-quoted Python string with all non-printable - * and non-US-ASCII sequences escaped. - * - * @param {string} str Valid Unicode string - * @return {string} Double-quoted string with Unicode sequences escaped - */ -function pyEscape(s) { - return 'u"' + c11Escape(s) + '"'; -} - -const UnicodeUtilsExtra = { - formatCodePoint: formatCodePoint, - getCodePointsFormatted: getCodePointsFormatted, - zeroPaddedHex: zeroPaddedHex, - phpEscape: phpEscape, - jsEscape: jsEscape, - cEscape: cEscape, - objcEscape: objcEscape, - pyEscape: pyEscape -}; - -module.exports = UnicodeUtilsExtra;
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