@openui5/sap.ui.core
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OpenUI5 Core Library sap.ui.core
262 lines (249 loc) • 9.14 kB
JavaScript
/**
* @license hyphenEngine.asm.js 3.4.0 - client side hyphenation for webbrowsers
* ©2019 Mathias Nater, Zürich (mathiasnater at gmail dot com)
* https://github.com/mnater/Hyphenopoly
*
* Released under the MIT license
* http://mnater.github.io/Hyphenopoly/LICENSE
*/
/* eslint-disable */
function asmHyphenEngine(std, x, heap) {
"use asm";
var ui8 = new std.Uint8Array(heap);
var ui16 = new std.Uint16Array(heap);
var i32 = new std.Int32Array(heap);
var imul = std.Math.imul;
var to = x.to | 0;
var po = x.po | 0;
var pl = x.pl | 0;
var vs = x.vs | 0;
var pt = x.pt | 0;
var wo = x.wo | 0;
var tw = x.tw | 0;
var hp = x.hp | 0;
var hw = x.hw | 0;
function hashCharCode(cc) {
//maps BMP-charCode (16bit) to 8bit adresses
//{0, 1, 2, ..., 2^16 - 1} -> {0, 1, 2, ..., 2^8 - 1}
//collisions will occur!
cc = cc | 0;
var h = 0;
h = imul(cc, 40503); // 2^16 (-1 + sqrt(5)) / 2 = 40’503.475...
h = h & 255; //mask 8bits
return h << 1;
}
function pushToTranslateMap(cc, id) {
cc = cc | 0;
id = id | 0;
var addr = 0;
addr = hashCharCode(cc | 0) | 0;
while ((ui16[addr >> 1] | 0) != 0) {
addr = (addr + 2) | 0;
}
ui16[addr >> 1] = cc;
ui8[((addr >> 1) + 512) | 0] = id;
}
function pullFromTranslateMap(cc) {
cc = cc | 0;
var addr = 0;
addr = hashCharCode(cc) | 0;
while ((ui16[addr >> 1] | 0) != (cc | 0)) {
addr = (addr + 2) | 0;
if ((addr | 0) >= 512) {
return 255;
}
}
return ui8[((addr >> 1) + 512) | 0] | 0;
}
function createTranslateMap() {
var i = 0;
var k = 0;
var first = 0;
var second = 0;
var secondInt = 0;
var alphabetCount = 0;
i = (to + 2) | 0;
while ((i | 0) < (po | 0)) {
first = ui16[i >> 1] | 0;
second = ui16[(i + 2) >> 1] | 0;
if ((second | 0) == 0) {
secondInt = 255;
} else {
secondInt = pullFromTranslateMap(second) | 0;
}
if ((secondInt | 0) == 255) {
//there's no such char yet in the TranslateMap
pushToTranslateMap(first, k);
if ((second | 0) != 0) {
//set upperCase representation
pushToTranslateMap(second, k);
}
k = (k + 1) | 0;
} else {
//char is already in TranslateMap -> SUBSTITUTION
pushToTranslateMap(first, secondInt);
}
//add to alphabet
ui16[(768 + (alphabetCount << 1)) >> 1] = first;
alphabetCount = (alphabetCount + 1) | 0;
i = (i + 4) | 0;
}
return alphabetCount | 0;
}
function convert() {
var i = 0;
var charAti = 0;
var plen = 0;
var count = 0;
var nextRowStart = 0;
var trieNextEmptyRow = 0;
var rowStart = 0;
var rowOffset = 0;
var valueStoreStartIndex = 0;
var valueStoreCurrentIdx = 0;
var valueStorePrevIdx = 0;
var alphabetlength = 0;
var first = 0;
var second = 0;
var trieRowLength = 0;
trieRowLength = ((ui16[to >> 1] << 1) + 1) << 2;
nextRowStart = pt;
trieNextEmptyRow = pt;
rowStart = pt;
valueStoreStartIndex = vs;
valueStoreCurrentIdx = vs;
valueStorePrevIdx = vs;
alphabetlength = createTranslateMap() | 0;
i = po | 0;
while ((i | 0) < (po + pl | 0)) {
if ((ui8[i | 0] | 0) == 0) {
plen = ui8[(i + 1) | 0] | 0;
i = (i + 2) | 0;
} else {
if ((ui8[i | 0] | 0) == 255) {
first = ui8[(i + 1) | 0] | 0;
second = ui8[(i + 2) | 0] | 0;
i = (i + 3) | 0;
}
while ((count | 0) < (plen | 0)) {
if ((count | 0) == 0) {
charAti = first;
} else if ((count | 0) == 1) {
charAti = second;
} else {
charAti = ui8[i | 0] | 0;
i = (i + 1) | 0;
}
if ((charAti | 0) > 11) {
valueStoreCurrentIdx = (valueStoreCurrentIdx + 1) | 0;
if ((nextRowStart | 0) == 0) {
//start a new row
trieNextEmptyRow = trieNextEmptyRow + trieRowLength | 0;
nextRowStart = trieNextEmptyRow;
i32[(rowStart + rowOffset) >> 2] = nextRowStart;
}
rowOffset = ((charAti - 12) | 0) << 3;
rowStart = nextRowStart;
nextRowStart = i32[(rowStart + rowOffset) >> 2] | 0;
} else {
ui8[valueStoreCurrentIdx | 0] = charAti | 0;
valueStorePrevIdx = valueStoreCurrentIdx;
}
count = (count + 1) | 0;
}
//terminate valueStore and save link to valueStoreStartIndex
ui8[(valueStorePrevIdx + 1) | 0] = 255; //mark end of pattern
i32[(rowStart + rowOffset + 4) >> 2] = valueStoreStartIndex | 0;
//reset indizes
valueStoreStartIndex = (valueStorePrevIdx + 2) | 0;
valueStoreCurrentIdx = valueStoreStartIndex;
count = 0;
rowStart = pt;
nextRowStart = pt;
}
}
return alphabetlength | 0;
}
function hyphenate(lm, rm, hc) {
lm = lm | 0;
rm = rm | 0;
hc = hc | 0;
var patternStartPos = 0;
var wordLength = 0;
var charOffset = 0;
var cc = 0;
var row = 0;
var rowOffset2 = 0;
var link = 0;
var value = 0;
var hyphenPointsCount = 0;
var hyphenPoint = 0;
var hpPos = 0;
var translatedChar = 0;
//translate UTF16 word to internal ints and clear hpPos-Array
cc = ui16[wo >> 1] | 0;
while ((cc | 0) != 0) {
translatedChar = pullFromTranslateMap(cc | 0) | 0;
if ((translatedChar | 0) == 255) {
return 0;
}
ui8[(tw + charOffset) | 0] = translatedChar | 0;
charOffset = (charOffset + 1) | 0;
ui8[(hp + charOffset) | 0] = 0;
cc = ui16[(wo + (charOffset << 1)) >> 1] | 0;
}
//find patterns and collect hyphenPoints
wordLength = charOffset;
while ((patternStartPos | 0) < (wordLength | 0)) {
row = pt;
charOffset = patternStartPos | 0;
while ((charOffset | 0) < (wordLength | 0)) {
rowOffset2 = ui8[(tw + charOffset) | 0] << 3;
link = i32[(row + rowOffset2) >> 2] | 0;
value = i32[(row + rowOffset2 + 4) >> 2] | 0;
if ((value | 0) > 0) {
hyphenPointsCount = 0;
hyphenPoint = ui8[value | 0] | 0;
while ((hyphenPoint | 0) != 255) {
hpPos = (hp + patternStartPos + hyphenPointsCount) | 0;
if ((hyphenPoint | 0) > (ui8[hpPos | 0] | 0)) {
ui8[hpPos | 0] = hyphenPoint | 0;
}
hyphenPointsCount = (hyphenPointsCount + 1) | 0;
hyphenPoint = ui8[(value + hyphenPointsCount) | 0] | 0;
}
}
if ((link | 0) > 0) {
row = link | 0;
} else {
break;
}
charOffset = (charOffset + 1) | 0;
}
patternStartPos = (patternStartPos + 1) | 0;
}
//get chars of original word and insert hyphenPoints
charOffset = 1;
hyphenPointsCount = 0;
wordLength = (wordLength - 2) | 0;
while ((charOffset | 0) <= (wordLength | 0)) {
ui16[(hw + (charOffset << 1) + hyphenPointsCount) >> 1] = ui16[(wo + (charOffset << 1)) >> 1] | 0;
if (
(((charOffset | 0) >= (lm | 0)) | 0) &
(((charOffset | 0) <= ((wordLength - rm) | 0)) | 0)
) {
if (ui8[(hp + charOffset + 1) | 0] & 1) {
hyphenPointsCount = (hyphenPointsCount + 2) | 0;
ui16[(hw + (charOffset << 1) + hyphenPointsCount) >> 1] = hc;
}
}
charOffset = (charOffset + 1) | 0;
}
ui16[hw >> 1] = (wordLength + (hyphenPointsCount >> 1)) | 0;
return 1;
}
return {
convert: convert,
hyphenate: hyphenate
};
}