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}
suggest (sWord, nMaxSugg=10) {
// returns a array of suggestions for <sWord>
let sPfx = "";
let sSfx = "";
[sPfx, sWord, sSfx] = char_player.cut(sWord);
let nMaxSwitch = Math.max(Math.floor(sWord.length / 3), 1);
let nMaxDel = Math.floor(sWord.length / 5);
let nMaxHardRepl = Math.max(Math.floor((sWord.length - 5) / 4), 1);
let aSugg = this._suggest(sWord, nMaxDel, nMaxHardRepl);
let aSugg = this._suggest(sWord, nMaxSwitch, nMaxDel, nMaxHardRepl);
if (sWord.gl_isTitle()) {
aSugg.gl_update(this._suggest(sWord.toLowerCase(), nMaxDel, nMaxHardRepl));
aSugg.gl_update(this._suggest(sWord.toLowerCase(), nMaxSwitch, nMaxDel, nMaxHardRepl));
}
else if (sWord.gl_isLowerCase()) {
aSugg.gl_update(this._suggest(sWord.gl_toCapitalize(), nMaxDel, nMaxHardRepl));
aSugg.gl_update(this._suggest(sWord.gl_toCapitalize(), nMaxSwitch, nMaxDel, nMaxHardRepl));
}
// Set to Array
aSugg = Array.from(aSugg);
aSugg = char_player.filterSugg(aSugg);
if (sWord.gl_isTitle()) {
aSugg = aSugg.map((sSugg) => { return sSugg.gl_toCapitalize(); });
}
let dDistTemp = new Map();
let sCleanWord = char_player.cleanWord(sWord);
aSugg.forEach((sSugg) => { dDistTemp.set(sSugg, char_player.distanceDamerauLevenshtein(sCleanWord, char_player.cleanWord(sSugg))); });
aSugg.forEach((sSugg) => { dDistTemp.set(sSugg, str_transform.distanceDamerauLevenshtein(sCleanWord, char_player.cleanWord(sSugg))); });
aSugg = aSugg.sort((sA, sB) => { return dDistTemp.get(sA) - dDistTemp.get(sB); }).slice(0, nMaxSugg);
dDistTemp.clear();
if (sSfx || sPfx) {
// we add what we removed
return aSugg.map( (sSugg) => { return sPfx + sSugg + sSfx } );
}
return aSugg;
}
_suggest (sRemain, nMaxDel=0, nMaxHardRepl=0, nDeep=0, iAddr=0, sNewWord="", bAvoidLoop=false) {
_suggest (sRemain, nMaxSwitch=0, nMaxDel=0, nMaxHardRepl=0, nDeep=0, iAddr=0, sNewWord="", bAvoidLoop=false) {
// returns a set of suggestions
// recursive function
let aSugg = new Set();
if (sRemain == "") {
if (this._convBytesToInteger(this.byDic.slice(iAddr, iAddr+this.nBytesArc)) & this._finalNodeMask) {
aSugg.add(sNewWord);
}
for (let sTail of this._getTails(iAddr)) {
aSugg.add(sNewWord+sTail);
}
return aSugg;
}
let cCurrent = sRemain.slice(0, 1);
for (let [cChar, jAddr] of this._getSimilarArcs(cCurrent, iAddr)) {
aSugg.gl_update(this._suggest(sRemain.slice(1), nMaxDel, nMaxHardRepl, nDeep+1, jAddr, sNewWord+cChar));
for (let [cChar, jAddr] of this._getSimilarCharArcs(cCurrent, iAddr)) {
aSugg.gl_update(this._suggest(sRemain.slice(1), nMaxSwitch, nMaxDel, nMaxHardRepl, nDeep+1, jAddr, sNewWord+cChar));
}
if (!bAvoidLoop) { // avoid infinite loop
if (sRemain.length > 1) {
if (cCurrent == sRemain.slice(1, 2)) {
// same char, we remove 1 char without adding 1 to <sNewWord>
aSugg.gl_update(this._suggest(sRemain.slice(1), nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord));
}
else {
// switching chars
aSugg.gl_update(this._suggest(sRemain.slice(1, 2)+sRemain.slice(0, 1)+sRemain.slice(2), nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
// delete char
if (nMaxDel > 0) {
aSugg.gl_update(this._suggest(sRemain.slice(1), nMaxDel-1, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
}
// Phonetic replacements
for (let sRepl of char_player.d1toX.gl_get(cCurrent, [])) {
aSugg.gl_update(this._suggest(sRepl + sRemain.slice(1), nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
for (let sRepl of char_player.d2toX.gl_get(sRemain.slice(0, 2), [])) {
aSugg.gl_update(this._suggest(sRepl + sRemain.slice(2), nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
// Hard replacements
if (nDeep > 3 && nMaxHardRepl && sRemain.length >= 2) {
for (let [nVal, kAddr] of this._getArcs1(iAddr)) {
if (cCurrent == sRemain.slice(1, 2)) {
// same char, we remove 1 char without adding 1 to <sNewWord>
aSugg.gl_update(this._suggest(sRemain.slice(1), nMaxSwitch, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord));
}
else {
// switching chars
if (nMaxSwitch > 0) {
aSugg.gl_update(this._suggest(sRemain.slice(1, 2)+sRemain.slice(0, 1)+sRemain.slice(2), nMaxSwitch-1, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
// delete char
if (nMaxDel > 0) {
aSugg.gl_update(this._suggest(sRemain.slice(1), nMaxSwitch, nMaxDel-1, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
}
// Phonetic replacements
for (let sRepl of char_player.d1toX.gl_get(cCurrent, [])) {
aSugg.gl_update(this._suggest(sRepl + sRemain.slice(1), nMaxSwitch, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
for (let sRepl of char_player.d2toX.gl_get(sRemain.slice(0, 2), [])) {
aSugg.gl_update(this._suggest(sRepl + sRemain.slice(2), nMaxSwitch, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
// Hard replacements
if (nDeep > 3 && nMaxHardRepl && sRemain.length >= 2) {
for (let [cChar, kAddr] of this._getCharArcs(iAddr)) {
if (this.dCharVal.has(nVal)) {
let cChar = this.dCharVal.get(nVal);
aSugg.gl_update(this._suggest(sRemain.slice(1), nMaxDel, nMaxHardRepl-1, nDeep+1, kAddr, sNewWord+cChar, true));
aSugg.gl_update(this._suggest(sRemain.slice(1), nMaxSwitch, nMaxDel, nMaxHardRepl-1, nDeep+1, kAddr, sNewWord+cChar, true));
}
}
}
}
// end of word
if (sRemain.length == 2) {
for (let sRepl of char_player.dFinal2.gl_get(sRemain, [])) {
aSugg.gl_update(this._suggest(sRepl, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
aSugg.gl_update(this._suggest(sRepl, nMaxSwitch, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
}
else if (sRemain.length == 1) {
aSugg.gl_update(this._suggest("", nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true)); // remove last char and go on
aSugg.gl_update(this._suggest("", nMaxSwitch, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true)); // remove last char and go on
for (let sRepl of char_player.dFinal1.gl_get(sRemain, [])) {
aSugg.gl_update(this._suggest(sRepl, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
aSugg.gl_update(this._suggest(sRepl, nMaxSwitch, nMaxDel, nMaxHardRepl, nDeep+1, iAddr, sNewWord, true));
}
}
}
return aSugg;
}
* _getCharArcs (iAddr) {
// generator: yield all chars and addresses from node at address <iAddr>
for (let [nVal, jAddr] of this._getArcs(iAddr)) {
if (nVal < this.nChar) {
yield [this.dCharVal.get(nVal), jAddr];
}
}
}
* _getSimilarArcs (cChar, iAddr) {
* _getSimilarCharArcs (cChar, iAddr) {
// generator: yield similar char of <cChar> and address of the following node
for (let c of char_player.d1to1.gl_get(cChar, [cChar])) {
if (this.dChar.has(c)) {
let jAddr = this._lookupArcNode(this.dChar.get(c), iAddr);
if (jAddr) {
yield [c, jAddr];
}
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