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{"version":3,"file":"utrie.umd.js","sources":["../../src/Util.ts","../../src/Trie.ts","../node_modules/src/index.ts","../../src/TrieBuilder.ts"],"sourcesContent":["const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n lookup[chars.charCodeAt(i)] = i;\n}\n\nexport const decode = (base64: string): ArrayBuffer | number[] => {\n let bufferLength = base64.length * 0.75,\n len = base64.length,\n i,\n p = 0,\n encoded1,\n encoded2,\n encoded3,\n encoded4;\n\n if (base64[base64.length - 1] === '=') {\n bufferLength--;\n if (base64[base64.length - 2] === '=') {\n bufferLength--;\n }\n }\n\n const buffer =\n typeof ArrayBuffer !== 'undefined' &&\n typeof Uint8Array !== 'undefined' &&\n typeof Uint8Array.prototype.slice !== 'undefined'\n ? new ArrayBuffer(bufferLength)\n : new Array(bufferLength);\n const bytes = Array.isArray(buffer) ? buffer : new Uint8Array(buffer);\n\n for (i = 0; i < len; i += 4) {\n encoded1 = lookup[base64.charCodeAt(i)];\n encoded2 = lookup[base64.charCodeAt(i + 1)];\n encoded3 = lookup[base64.charCodeAt(i + 2)];\n encoded4 = lookup[base64.charCodeAt(i + 3)];\n\n bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n }\n\n return buffer;\n};\n\nexport const polyUint16Array = (buffer: number[]): number[] => {\n const length = buffer.length;\n const bytes = [];\n for (let i = 0; i < length; i += 2) {\n bytes.push((buffer[i + 1] << 8) | buffer[i]);\n }\n return bytes;\n};\n\nexport const polyUint32Array = (buffer: number[]): number[] => {\n const length = buffer.length;\n const bytes = [];\n for (let i = 0; i < length; i += 4) {\n bytes.push((buffer[i + 3] << 24) | (buffer[i + 2] << 16) | (buffer[i + 1] << 8) | buffer[i]);\n }\n return bytes;\n};\n","import {decode, polyUint16Array, polyUint32Array} from './Util';\n\nexport type int = number;\n\n/** Shift size for getting the index-2 table offset. */\nexport const UTRIE2_SHIFT_2 = 5;\n\n/** Shift size for getting the index-1 table offset. */\nexport const UTRIE2_SHIFT_1 = 6 + 5;\n\n/**\n * Shift size for shifting left the index array values.\n * Increases possible data size with 16-bit index values at the cost\n * of compactability.\n * This requires data blocks to be aligned by UTRIE2_DATA_GRANULARITY.\n */\nexport const UTRIE2_INDEX_SHIFT = 2;\n\n/**\n * Difference between the two shift sizes,\n * for getting an index-1 offset from an index-2 offset. 6=11-5\n */\nexport const UTRIE2_SHIFT_1_2 = UTRIE2_SHIFT_1 - UTRIE2_SHIFT_2;\n\n/**\n * The part of the index-2 table for U+D800..U+DBFF stores values for\n * lead surrogate code _units_ not code _points_.\n * Values for lead surrogate code _points_ are indexed with this portion of the table.\n * Length=32=0x20=0x400>>UTRIE2_SHIFT_2. (There are 1024=0x400 lead surrogates.)\n */\nexport const UTRIE2_LSCP_INDEX_2_OFFSET = 0x10000 >> UTRIE2_SHIFT_2;\n\n/** Number of entries in a data block. 32=0x20 */\nexport const UTRIE2_DATA_BLOCK_LENGTH = 1 << UTRIE2_SHIFT_2;\n/** Mask for getting the lower bits for the in-data-block offset. */\nexport const UTRIE2_DATA_MASK = UTRIE2_DATA_BLOCK_LENGTH - 1;\n\nexport const UTRIE2_LSCP_INDEX_2_LENGTH = 0x400 >> UTRIE2_SHIFT_2;\n/** Count the lengths of both BMP pieces. 2080=0x820 */\nexport const UTRIE2_INDEX_2_BMP_LENGTH = UTRIE2_LSCP_INDEX_2_OFFSET + UTRIE2_LSCP_INDEX_2_LENGTH;\n/**\n * The 2-byte UTF-8 version of the index-2 table follows at offset 2080=0x820.\n * Length 32=0x20 for lead bytes C0..DF, regardless of UTRIE2_SHIFT_2.\n */\nexport const UTRIE2_UTF8_2B_INDEX_2_OFFSET = UTRIE2_INDEX_2_BMP_LENGTH;\nexport const UTRIE2_UTF8_2B_INDE
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