MediaWiki:Stemmer.js: различия между версиями
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Mansur700 (обсуждение | вклад) (Керла агӀо: «// Nohchi stemmer // released under GNU GPL 2.0 or later // based on Nohchi Javascript stemmer from Urim project (http://code.google.com/p/urim/ Mozilla Public License 1....») |
Mansur700 (обсуждение | вклад) Нет описания правки |
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| Строка 1: | Строка 1: | ||
// | // Russian stemmer | ||
// released under GNU GPL 2.0 or later | // released under GNU GPL 2.0 or later | ||
// based on | // based on Russian Javascript stemmer from Urim project (http://code.google.com/p/urim/ Mozilla Public License 1.1), which is based on Snowball project (http://snowball.tartarus.org) | ||
// | // | ||
// Example | // Example | ||
// | // | ||
// var testStemmer = new | // var testStemmer = new RussianStemmer(); | ||
// testStemmer.setCurrent(' | // testStemmer.setCurrent('Тептар'); | ||
// var res = testStemmer.getCurrent(); // res == ' | // var res = testStemmer.getCurrent(); // res == 'Тептар' | ||
// | // | ||
Текущая версия от 11:39, 18 июня 2020
// Russian stemmer
// released under GNU GPL 2.0 or later
// based on Russian Javascript stemmer from Urim project (http://code.google.com/p/urim/ Mozilla Public License 1.1), which is based on Snowball project (http://snowball.tartarus.org)
//
// Example
//
// var testStemmer = new RussianStemmer();
// testStemmer.setCurrent('Тептар');
// var res = testStemmer.getCurrent(); // res == 'Тептар'
//
function Among(s, substring_i, result, method) {
if ((!s && s != "") || (!substring_i && (substring_i != 0)) || !result)
throw ("Bad Among initialisation: s:" + s + ", substring_i: "
+ substring_i + ", result: " + result);
this.s_size = s.length;
this.s = this.toCharArray(s);
this.substring_i = substring_i;
this.result = result;
this.method = method;
}
Among.prototype.toCharArray = function(s) {
var sLength = s.length;
var charArr = new Array(sLength);
for (var i = 0; i < sLength; i++)
charArr[i] = s.charCodeAt(i);
return charArr;
}
function SnowballProgram() {
var current;
return {
bra : 0,
ket : 0,
limit : 0,
cursor : 0,
limit_backward : 0,
setCurrent : function(word) {
current = word;
this.cursor = 0;
this.limit = word.length;
this.limit_backward = 0;
this.bra = this.cursor;
this.ket = this.limit;
},
getCurrent : function() {
var result = current;
current = null;
return result;
},
in_grouping : function(s, min, max) {
if (this.cursor >= this.limit)
return false;
var ch = current.charCodeAt(this.cursor);
if (ch > max || ch < min)
return false;
ch -= min;
if ((s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
return false;
this.cursor++;
return true;
},
in_grouping_b : function(s, min, max) {
if (this.cursor <= this.limit_backward)
return false;
var ch = current.charCodeAt(this.cursor - 1);
if (ch > max || ch < min)
return false;
ch -= min;
if ((s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
return false;
this.cursor--;
return true;
},
out_grouping : function(s, min, max) {
if (this.cursor >= this.limit)
return false;
var ch = current.charCodeAt(this.cursor);
if (ch > max || ch < min) {
this.cursor++;
return true;
}
ch -= min;
if ((s[ch >> 3] & (0X1 << (ch & 0X7))) == 0) {
this.cursor++;
return true;
}
return false;
},
out_grouping_b : function(s, min, max) {
if (this.cursor <= this.limit_backward)
return false;
var ch = current.charCodeAt(this.cursor - 1);
if (ch > max || ch < min) {
this.cursor--;
return true;
}
ch -= min;
if ((s[ch >> 3] & (0X1 << (ch & 0X7))) == 0) {
this.cursor--;
return true;
}
return false;
},
in_range : function(min, max) {
if (this.cursor >= this.limit)
return false;
var ch = current.charCodeAt(this.cursor);
if (ch > max || ch < min)
return false;
this.cursor++;
return true;
},
in_range_b : function(min, max) {
if (this.cursor <= this.limit_backward)
return false;
var ch = current.charCodeAt(this.cursor - 1);
if (ch > max || ch < min)
return false;
this.cursor--;
return true;
},
out_range : function(min, max) {
if (this.cursor >= this.limit)
return false;
var ch = current.charCodeAt(this.cursor);
if (!(ch > max || ch < min))
return false;
this.cursor++;
return true;
},
out_range_b : function(min, max) {
if (this.cursor <= this.limit_backward)
return false;
var ch = current.charCodeAt(this.cursor - 1);
if (!(ch > max || ch < min))
return false;
this.cursor--;
return true;
},
eq_s : function(s_size, s) {
if (this.limit - this.cursor < s_size)
return false;
for (var i = 0; i != s_size; i++) {
if (current.charCodeAt(this.cursor + i) != s.charCodeAt(i))
return false;
}
this.cursor += s_size;
return true;
},
eq_s_b : function(s_size, s) {
if (this.cursor - this.limit_backward < s_size)
return false;
for (var i = 0; i != s_size; i++) {
if (current.charCodeAt(this.cursor - s_size + i) != s
.charCodeAt(i))
return false;
}
this.cursor -= s_size;
return true;
},
find_among : function(v, v_size) {
var i = 0;
var j = v_size;
var c = this.cursor;
var l = this.limit;
var common_i = 0;
var common_j = 0;
var first_key_inspected = false;
while (true) {
var k = i + ((j - i) >> 1);
var diff = 0;
var common = common_i < common_j ? common_i : common_j;
var w = v[k];
for (var i2 = common; i2 < w.s_size; i2++) {
if (c + common == l) {
diff = -1;
break;
}
diff = current.charCodeAt(c + common) - w.s[i2];
if (diff != 0)
break;
common++;
}
if (diff < 0) {
j = k;
common_j = common;
} else {
i = k;
common_i = common;
}
if (j - i <= 1) {
if (i > 0)
break;
if (j == i)
break;
if (first_key_inspected)
break;
first_key_inspected = true;
}
}
while (true) {
var w = v[i];
if (common_i >= w.s_size) {
this.cursor = c + w.s_size;
if (!w.method)
return w.result;
var res = w.method();
this.cursor = c + w.s_size;
if (res)
return w.result;
}
i = w.substring_i;
if (i < 0)
return 0;
}
},
find_among_b : function(v, v_size) {
var i = 0;
var j = v_size;
var c = this.cursor;
var lb = this.limit_backward;
var common_i = 0;
var common_j = 0;
var first_key_inspected = false;
while (true) {
var k = i + ((j - i) >> 1);
var diff = 0;
var common = common_i < common_j ? common_i : common_j;
var w = v[k];
for (var i2 = w.s_size - 1 - common; i2 >= 0; i2--) {
if (c - common == lb) {
diff = -1;
break;
}
diff = current.charCodeAt(c - 1 - common) - w.s[i2];
if (diff != 0)
break;
common++;
}
if (diff < 0) {
j = k;
common_j = common;
} else {
i = k;
common_i = common;
}
if (j - i <= 1) {
if (i > 0)
break;
if (j == i)
break;
if (first_key_inspected)
break;
first_key_inspected = true;
}
}
while (true) {
var w = v[i];
if (common_i >= w.s_size) {
this.cursor = c - w.s_size;
if (!w.method)
return w.result;
var res = w.method();
this.cursor = c - w.s_size;
if (res)
return w.result;
}
i = w.substring_i;
if (i < 0)
return 0;
}
},
replace_s : function(c_bra, c_ket, s) {
var adjustment = s.length - (c_ket - c_bra);
var left = current.substring(0, c_bra);
var right = current.substring(c_ket);
current = left + s + right;
this.limit += adjustment;
if (this.cursor >= c_ket)
this.cursor += adjustment;
else if (this.cursor > c_bra)
this.cursor = c_bra;
return adjustment;
},
slice_check : function() {
if (this.bra < 0 || this.bra > this.ket || this.ket > this.limit
|| this.limit > current.length) {
throw ("faulty slice operation");
}
},
slice_from : function(s) {
this.slice_check();
this.replace_s(this.bra, this.ket, s);
},
slice_del : function() {
this.slice_from("");
},
insert : function(c_bra, c_ket, s) {
var adjustment = this.replace_s(c_bra, c_ket, s);
if (c_bra <= this.bra)
this.bra += adjustment;
if (c_bra <= this.ket)
this.ket += adjustment;
},
slice_to : function() {
this.slice_check();
return current.substring(this.bra, this.ket);
},
eq_v_b : function(s) {
return this.eq_s_b(s.length, s);
}
};
}
function RussianStemmer() {
var a_0 = [new Among("\u0432", -1, 1), new Among("\u0438\u0432", 0, 2),
new Among("\u044B\u0432", 0, 2),
new Among("\u0432\u0448\u0438", -1, 1),
new Among("\u0438\u0432\u0448\u0438", 3, 2),
new Among("\u044B\u0432\u0448\u0438", 3, 2),
new Among("\u0432\u0448\u0438\u0441\u044C", -1, 1),
new Among("\u0438\u0432\u0448\u0438\u0441\u044C", 6, 2),
new Among("\u044B\u0432\u0448\u0438\u0441\u044C", 6, 2)];
var a_1 = [new Among("\u0435\u0435", -1, 1),
new Among("\u0438\u0435", -1, 1), new Among("\u043E\u0435", -1, 1),
new Among("\u044B\u0435", -1, 1),
new Among("\u0438\u043C\u0438", -1, 1),
new Among("\u044B\u043C\u0438", -1, 1),
new Among("\u0435\u0439", -1, 1), new Among("\u0438\u0439", -1, 1),
new Among("\u043E\u0439", -1, 1), new Among("\u044B\u0439", -1, 1),
new Among("\u0435\u043C", -1, 1), new Among("\u0438\u043C", -1, 1),
new Among("\u043E\u043C", -1, 1), new Among("\u044B\u043C", -1, 1),
new Among("\u0435\u0433\u043E", -1, 1),
new Among("\u043E\u0433\u043E", -1, 1),
new Among("\u0435\u043C\u0443", -1, 1),
new Among("\u043E\u043C\u0443", -1, 1),
new Among("\u0438\u0445", -1, 1), new Among("\u044B\u0445", -1, 1),
new Among("\u0435\u044E", -1, 1), new Among("\u043E\u044E", -1, 1),
new Among("\u0443\u044E", -1, 1), new Among("\u044E\u044E", -1, 1),
new Among("\u0430\u044F", -1, 1), new Among("\u044F\u044F", -1, 1)];
var a_2 = [new Among("\u0435\u043C", -1, 1),
new Among("\u043D\u043D", -1, 1), new Among("\u0432\u0448", -1, 1),
new Among("\u0438\u0432\u0448", 2, 2),
new Among("\u044B\u0432\u0448", 2, 2), new Among("\u0449", -1, 1),
new Among("\u044E\u0449", 5, 1),
new Among("\u0443\u044E\u0449", 6, 2)]
var a_3 = [new Among("\u0441\u044C", -1, 1),
new Among("\u0441\u044F", -1, 1)];
var a_4 = [new Among("\u043B\u0430", -1, 1),
new Among("\u0438\u043B\u0430", 0, 2),
new Among("\u044B\u043B\u0430", 0, 2),
new Among("\u043D\u0430", -1, 1),
new Among("\u0435\u043D\u0430", 3, 2),
new Among("\u0435\u0442\u0435", -1, 1),
new Among("\u0438\u0442\u0435", -1, 2),
new Among("\u0439\u0442\u0435", -1, 1),
new Among("\u0435\u0439\u0442\u0435", 7, 2),
new Among("\u0443\u0439\u0442\u0435", 7, 2),
new Among("\u043B\u0438", -1, 1),
new Among("\u0438\u043B\u0438", 10, 2),
new Among("\u044B\u043B\u0438", 10, 2), new Among("\u0439", -1, 1),
new Among("\u0435\u0439", 13, 2), new Among("\u0443\u0439", 13, 2),
new Among("\u043B", -1, 1), new Among("\u0438\u043B", 16, 2),
new Among("\u044B\u043B", 16, 2), new Among("\u0435\u043C", -1, 1),
new Among("\u0438\u043C", -1, 2), new Among("\u044B\u043C", -1, 2),
new Among("\u043D", -1, 1), new Among("\u0435\u043D", 22, 2),
new Among("\u043B\u043E", -1, 1),
new Among("\u0438\u043B\u043E", 24, 2),
new Among("\u044B\u043B\u043E", 24, 2),
new Among("\u043D\u043E", -1, 1),
new Among("\u0435\u043D\u043E", 27, 2),
new Among("\u043D\u043D\u043E", 27, 1),
new Among("\u0435\u0442", -1, 1),
new Among("\u0443\u0435\u0442", 30, 2),
new Among("\u0438\u0442", -1, 2), new Among("\u044B\u0442", -1, 2),
new Among("\u044E\u0442", -1, 1),
new Among("\u0443\u044E\u0442", 34, 2),
new Among("\u044F\u0442", -1, 2), new Among("\u043D\u044B", -1, 1),
new Among("\u0435\u043D\u044B", 37, 2),
new Among("\u0442\u044C", -1, 1),
new Among("\u0438\u0442\u044C", 39, 2),
new Among("\u044B\u0442\u044C", 39, 2),
new Among("\u0435\u0448\u044C", -1, 1),
new Among("\u0438\u0448\u044C", -1, 2), new Among("\u044E", -1, 2),
new Among("\u0443\u044E", 44, 2)];
var a_5 = [new Among("\u0430", -1, 1), new Among("\u0435\u0432", -1, 1),
new Among("\u043E\u0432", -1, 1), new Among("\u0435", -1, 1),
new Among("\u0438\u0435", 3, 1), new Among("\u044C\u0435", 3, 1),
new Among("\u0438", -1, 1), new Among("\u0435\u0438", 6, 1),
new Among("\u0438\u0438", 6, 1),
new Among("\u0430\u043C\u0438", 6, 1),
new Among("\u044F\u043C\u0438", 6, 1),
new Among("\u0438\u044F\u043C\u0438", 10, 1),
new Among("\u0439", -1, 1), new Among("\u0435\u0439", 12, 1),
new Among("\u0438\u0435\u0439", 13, 1),
new Among("\u0438\u0439", 12, 1), new Among("\u043E\u0439", 12, 1),
new Among("\u0430\u043C", -1, 1), new Among("\u0435\u043C", -1, 1),
new Among("\u0438\u0435\u043C", 18, 1),
new Among("\u043E\u043C", -1, 1), new Among("\u044F\u043C", -1, 1),
new Among("\u0438\u044F\u043C", 21, 1), new Among("\u043E", -1, 1),
new Among("\u0443", -1, 1), new Among("\u0430\u0445", -1, 1),
new Among("\u044F\u0445", -1, 1),
new Among("\u0438\u044F\u0445", 26, 1), new Among("\u044B", -1, 1),
new Among("\u044C", -1, 1), new Among("\u044E", -1, 1),
new Among("\u0438\u044E", 30, 1), new Among("\u044C\u044E", 30, 1),
new Among("\u044F", -1, 1), new Among("\u0438\u044F", 33, 1),
new Among("\u044C\u044F", 33, 1)];
var a_6 = [new Among("\u043E\u0441\u0442", -1, 1),
new Among("\u043E\u0441\u0442\u044C", -1, 1)];
var a_7 = [new Among("\u0435\u0439\u0448\u0435", -1, 1),
new Among("\u043D", -1, 2), new Among("\u0435\u0439\u0448", -1, 1),
new Among("\u044C", -1, 3)];
var g_v = [33, 65, 8, 232];
var I_p2, I_pV;
var sbp = new SnowballProgram();
this.setCurrent = function(word) {
sbp.setCurrent(word);
};
this.getCurrent = function() {
return sbp.getCurrent();
};
function r_mark_regions() {
var v_1;
I_pV = sbp.limit;
I_p2 = sbp.limit;
v_1 = sbp.cursor;
lab0 : do {
golab1 : while (true) {
lab2 : do {
if (!(sbp.in_grouping(g_v, 1072, 1103))) {
break lab2;
}
break golab1;
} while (false);
if (sbp.cursor >= sbp.limit) {
break lab0;
}
sbp.cursor++;
}
I_pV = sbp.cursor;
golab3 : while (true) {
lab4 : do {
if (!(sbp.out_grouping(g_v, 1072, 1103))) {
break lab4;
}
break golab3;
} while (false);
if (sbp.cursor >= sbp.limit) {
break lab0;
}
sbp.cursor++;
}
golab5 : while (true) {
lab6 : do {
if (!(sbp.in_grouping(g_v, 1072, 1103))) {
break lab6;
}
break golab5;
} while (false);
if (sbp.cursor >= sbp.limit) {
break lab0;
}
sbp.cursor++;
}
golab7 : while (true) {
lab8 : do {
if (!(sbp.out_grouping(g_v, 1072, 1103))) {
break lab8;
}
break golab7;
} while (false);
if (sbp.cursor >= sbp.limit) {
break lab0;
}
sbp.cursor++;
}
I_p2 = sbp.cursor;
} while (false);
sbp.cursor = v_1;
return true;
}
function r_R2() {
if (!(I_p2 <= sbp.cursor)) {
return false;
}
return true;
}
function r_perfective_gerund() {
var among_var;
var v_1;
sbp.ket = sbp.cursor;
among_var = sbp.find_among_b(a_0, 9);
if (among_var == 0) {
return false;
}
sbp.bra = sbp.cursor;
switch (among_var) {
case 0 :
return false;
case 1 :
lab0 : do {
v_1 = sbp.limit - sbp.cursor;
lab1 : do {
if (!(sbp.eq_s_b(1, "\u0430"))) {
break lab1;
}
break lab0;
} while (false);
sbp.cursor = sbp.limit - v_1;
if (!(sbp.eq_s_b(1, "\u044F"))) {
return false;
}
} while (false);
sbp.slice_del();
break;
case 2 :
sbp.slice_del();
break;
}
return true;
}
function r_adjective() {
var among_var;
sbp.ket = sbp.cursor;
among_var = sbp.find_among_b(a_1, 26);
if (among_var == 0) {
return false;
}
sbp.bra = sbp.cursor;
switch (among_var) {
case 0 :
return false;
case 1 :
sbp.slice_del();
break;
}
return true;
}
function r_adjectival() {
var among_var;
var v_1;
var v_2;
if (!r_adjective()) {
return false;
}
v_1 = sbp.limit - sbp.cursor;
lab0 : do {
sbp.ket = sbp.cursor;
among_var = sbp.find_among_b(a_2, 8);
if (among_var == 0) {
sbp.cursor = sbp.limit - v_1;
break lab0;
}
sbp.bra = sbp.cursor;
switch (among_var) {
case 0 :
sbp.cursor = sbp.limit - v_1;
break lab0;
case 1 :
lab1 : do {
v_2 = sbp.limit - sbp.cursor;
lab2 : do {
if (!(sbp.eq_s_b(1, "\u0430"))) {
break lab2;
}
break lab1;
} while (false);
sbp.cursor = sbp.limit - v_2;
if (!(sbp.eq_s_b(1, "\u044F"))) {
sbp.cursor = sbp.limit - v_1;
break lab0;
}
} while (false);
sbp.slice_del();
break;
case 2 :
sbp.slice_del();
break;
}
} while (false);
return true;
}
function r_reflexive() {
var among_var;
sbp.ket = sbp.cursor;
among_var = sbp.find_among_b(a_3, 2);
if (among_var == 0) {
return false;
}
sbp.bra = sbp.cursor;
switch (among_var) {
case 0 :
return false;
case 1 :
sbp.slice_del();
break;
}
return true;
}
function r_verb() {
var among_var;
var v_1;
sbp.ket = sbp.cursor;
among_var = sbp.find_among_b(a_4, 46);
if (among_var == 0) {
return false;
}
sbp.bra = sbp.cursor;
switch (among_var) {
case 0 :
return false;
case 1 :
lab0 : do {
v_1 = sbp.limit - sbp.cursor;
lab1 : do {
if (!(sbp.eq_s_b(1, "\u0430"))) {
break lab1;
}
break lab0;
} while (false);
sbp.cursor = sbp.limit - v_1;
if (!(sbp.eq_s_b(1, "\u044F"))) {
return false;
}
} while (false);
sbp.slice_del();
break;
case 2 :
sbp.slice_del();
break;
}
return true;
}
function r_noun() {
var among_var;
sbp.ket = sbp.cursor;
among_var = sbp.find_among_b(a_5, 36);
if (among_var == 0) {
return false;
}
sbp.bra = sbp.cursor;
switch (among_var) {
case 0 :
return false;
case 1 :
sbp.slice_del();
break;
}
return true;
}
function r_derivational() {
var among_var;
sbp.ket = sbp.cursor;
among_var = sbp.find_among_b(a_6, 2);
if (among_var == 0) {
return false;
}
sbp.bra = sbp.cursor;
if (!r_R2()) {
return false;
}
switch (among_var) {
case 0 :
return false;
case 1 :
sbp.slice_del();
break;
}
return true;
}
function r_tidy_up() {
var among_var;
sbp.ket = sbp.cursor;
among_var = sbp.find_among_b(a_7, 4);
if (among_var == 0) {
return false;
}
sbp.bra = sbp.cursor;
switch (among_var) {
case 0 :
return false;
case 1 :
sbp.slice_del();
sbp.ket = sbp.cursor;
if (!(sbp.eq_s_b(1, "\u043D"))) {
return false;
}
sbp.bra = sbp.cursor;
if (!(sbp.eq_s_b(1, "\u043D"))) {
return false;
}
sbp.slice_del();
break;
case 2 :
if (!(sbp.eq_s_b(1, "\u043D"))) {
return false;
}
sbp.slice_del();
break;
case 3 :
sbp.slice_del();
break;
}
return true;
}
this.stem = function() {
var v_1, v_2, v_3, v_4, v_5, v_6, v_7, v_8, v_9, v_10;
v_1 = sbp.cursor;
lab0 : do {
if (!r_mark_regions()) {
break lab0;
}
} while (false);
sbp.cursor = v_1;
sbp.limit_backward = sbp.cursor;
sbp.cursor = sbp.limit;
v_2 = sbp.limit - sbp.cursor;
if (sbp.cursor < I_pV) {
return false;
}
sbp.cursor = I_pV;
v_3 = sbp.limit_backward;
sbp.limit_backward = sbp.cursor;
sbp.cursor = sbp.limit - v_2;
v_4 = sbp.limit - sbp.cursor;
lab1 : do {
lab2 : do {
v_5 = sbp.limit - sbp.cursor;
lab3 : do {
if (!r_perfective_gerund()) {
break lab3;
}
break lab2;
} while (false);
sbp.cursor = sbp.limit - v_5;
v_6 = sbp.limit - sbp.cursor;
lab4 : do {
if (!r_reflexive()) {
sbp.cursor = sbp.limit - v_6;
break lab4;
}
} while (false);
lab5 : do {
v_7 = sbp.limit - sbp.cursor;
lab6 : do {
if (!r_adjectival()) {
break lab6;
}
break lab5;
} while (false);
sbp.cursor = sbp.limit - v_7;
lab7 : do {
if (!r_verb()) {
break lab7;
}
break lab5;
} while (false);
sbp.cursor = sbp.limit - v_7;
if (!r_noun()) {
break lab1;
}
} while (false);
} while (false);
} while (false);
sbp.cursor = sbp.limit - v_4;
v_8 = sbp.limit - sbp.cursor;
lab8 : do {
sbp.ket = sbp.cursor;
if (!(sbp.eq_s_b(1, "\u0438"))) {
sbp.cursor = sbp.limit - v_8;
break lab8;
}
sbp.bra = sbp.cursor;
sbp.slice_del();
} while (false);
v_9 = sbp.limit - sbp.cursor;
lab9 : do {
if (!r_derivational()) {
break lab9;
}
} while (false);
sbp.cursor = sbp.limit - v_9;
v_10 = sbp.limit - sbp.cursor;
lab10 : do {
if (!r_tidy_up()) {
break lab10;
}
} while (false);
sbp.cursor = sbp.limit - v_10;
sbp.limit_backward = v_3;
sbp.cursor = sbp.limit_backward;
return true;
}
}