/*
* Port of Snowball stemmers on C#
* Original stemmers can be found on http://snowball.tartarus.org
* Licence still BSD: http://snowball.tartarus.org/license.php
*
* Most of stemmers are ported from Java by Iveonik Systems ltd. (www.iveonik.com)
*/
using ZeroLevel.Services.Semantic;
namespace Iveonik.Stemmers
{
public class NorwegianStemmer : StemmerOperations, ILexer
{
private readonly static NorwegianStemmer methodObject = new NorwegianStemmer();
private readonly static Among[] a_0 =
{
new Among ( "a", -1, 1, null ),
new Among ( "e", -1, 1, null ),
new Among ( "ede", 1, 1, null ),
new Among ( "ande", 1, 1, null ),
new Among ( "ende", 1, 1, null ),
new Among ( "ane", 1, 1, null ),
new Among ( "ene", 1, 1, null ),
new Among ( "hetene", 6, 1, null ),
new Among ( "erte", 1, 3, null ),
new Among ( "en", -1, 1, null ),
new Among ( "heten", 9, 1, null ),
new Among ( "ar", -1, 1, null ),
new Among ( "er", -1, 1, null ),
new Among ( "heter", 12, 1, null ),
new Among ( "s", -1, 2, null ),
new Among ( "as", 14, 1, null ),
new Among ( "es", 14, 1, null ),
new Among ( "edes", 16, 1, null ),
new Among ( "endes", 16, 1, null ),
new Among ( "enes", 16, 1, null ),
new Among ( "hetenes", 19, 1, null ),
new Among ( "ens", 14, 1, null ),
new Among ( "hetens", 21, 1, null ),
new Among ( "ers", 14, 1, null ),
new Among ( "ets", 14, 1, null ),
new Among ( "et", -1, 1, null ),
new Among ( "het", 25, 1, null ),
new Among ( "ert", -1, 3, null ),
new Among ( "ast", -1, 1, null )
};
private readonly static Among[] a_1 =
{
new Among ( "dt", -1, -1, null ),
new Among ( "vt", -1, -1, null )
};
private readonly static Among[] a_2 =
{
new Among ( "leg", -1, 1, null ),
new Among ( "eleg", 0, 1, null ),
new Among ( "ig", -1, 1, null ),
new Among ( "eig", 2, 1, null ),
new Among ( "lig", 2, 1, null ),
new Among ( "elig", 4, 1, null ),
new Among ( "els", -1, 1, null ),
new Among ( "lov", -1, 1, null ),
new Among ( "elov", 7, 1, null ),
new Among ( "slov", 7, 1, null ),
new Among ( "hetslov", 9, 1, null )
};
private static readonly char[] g_v = {(char)17, (char)65, (char)16, (char)1, (char)0, (char)0, (char)0,
(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0,
(char)0, (char)0, (char)48, (char)0, (char)128 };
private static readonly char[] g_s_ending = { (char)119, (char)125, (char)149, (char)1 };
private int I_x;
private int I_p1;
private void copy_from(NorwegianStemmer other)
{
I_x = other.I_x;
I_p1 = other.I_p1;
base.copy_from(other);
}
private bool r_mark_regions()
{
bool subroot = false;
int v_1;
int v_2;
// (, line 26
I_p1 = limit;
// test, line 30
v_1 = cursor;
// (, line 30
// hop, line 30
{
int c = cursor + 3;
if (0 > c || c > limit)
{
return false;
}
cursor = c;
}
// setmark x, line 30
I_x = cursor;
cursor = v_1;
// goto, line 31
while (true)
{
v_2 = cursor;
do
{
if (!(in_grouping(g_v, 97, 248)))
{
break;
}
cursor = v_2;
subroot = true;
if (subroot) break;
} while (false);
if (subroot) { subroot = false; break; }
cursor = v_2;
if (cursor >= limit)
{
return false;
}
cursor++;
}
// gopast, line 31
while (true)
{
do
{
if (!(out_grouping(g_v, 97, 248)))
{
break;
}
subroot = true;
if (subroot) break;
} while (false);
if (subroot) { subroot = false; break; }
if (cursor >= limit)
{
return false;
}
cursor++;
}
// setmark p1, line 31
I_p1 = cursor;
// try, line 32
do
{
// (, line 32
if (!(I_p1 < I_x))
{
break;
}
I_p1 = I_x;
} while (false);
return true;
}
private bool r_main_suffix()
{
bool subroot = false;
int among_var;
int v_1;
int v_2;
int v_3;
// (, line 37
// setlimit, line 38
v_1 = limit - cursor;
// tomark, line 38
if (cursor < I_p1)
{
return false;
}
cursor = I_p1;
v_2 = limit_backward;
limit_backward = cursor;
cursor = limit - v_1;
// (, line 38
// [, line 38
ket = cursor;
// substring, line 38
among_var = find_among_b(a_0, 29);
if (among_var == 0)
{
limit_backward = v_2;
return false;
}
// ], line 38
bra = cursor;
limit_backward = v_2;
switch (among_var)
{
case 0:
return false;
case 1:
// (, line 44
// delete, line 44
slice_del();
break;
case 2:
// (, line 46
// or, line 46
do
{
v_3 = limit - cursor;
do
{
if (!(in_grouping_b(g_s_ending, 98, 122)))
{
break;
}
subroot = true;
if (subroot) break;
} while (false);
if (subroot) { subroot = false; break; }
cursor = limit - v_3;
// (, line 46
// literal, line 46
if (!(eq_s_b(1, "k")))
{
return false;
}
if (!(out_grouping_b(g_v, 97, 248)))
{
return false;
}
} while (false);
// delete, line 46
slice_del();
break;
case 3:
// (, line 48
// <-, line 48
slice_from("er");
break;
}
return true;
}
private bool r_consonant_pair()
{
int v_1;
int v_2;
int v_3;
// (, line 52
// test, line 53
v_1 = limit - cursor;
// (, line 53
// setlimit, line 54
v_2 = limit - cursor;
// tomark, line 54
if (cursor < I_p1)
{
return false;
}
cursor = I_p1;
v_3 = limit_backward;
limit_backward = cursor;
cursor = limit - v_2;
// (, line 54
// [, line 54
ket = cursor;
// substring, line 54
if (find_among_b(a_1, 2) == 0)
{
limit_backward = v_3;
return false;
}
// ], line 54
bra = cursor;
limit_backward = v_3;
cursor = limit - v_1;
// next, line 59
if (cursor <= limit_backward)
{
return false;
}
cursor--;
// ], line 59
bra = cursor;
// delete, line 59
slice_del();
return true;
}
private bool r_other_suffix()
{
int among_var;
int v_1;
int v_2;
// (, line 62
// setlimit, line 63
v_1 = limit - cursor;
// tomark, line 63
if (cursor < I_p1)
{
return false;
}
cursor = I_p1;
v_2 = limit_backward;
limit_backward = cursor;
cursor = limit - v_1;
// (, line 63
// [, line 63
ket = cursor;
// substring, line 63
among_var = find_among_b(a_2, 11);
if (among_var == 0)
{
limit_backward = v_2;
return false;
}
// ], line 63
bra = cursor;
limit_backward = v_2;
switch (among_var)
{
case 0:
return false;
case 1:
// (, line 67
// delete, line 67
slice_del();
break;
}
return true;
}
private bool CanStem()
{
int v_1;
int v_2;
int v_3;
int v_4;
// (, line 72
// do, line 74
v_1 = cursor;
do
{
// call mark_regions, line 74
if (!r_mark_regions())
{
break;
}
} while (false);
cursor = v_1;
// backwards, line 75
limit_backward = cursor; cursor = limit;
// (, line 75
// do, line 76
v_2 = limit - cursor;
do
{
// call main_suffix, line 76
if (!r_main_suffix())
{
break;
}
} while (false);
cursor = limit - v_2;
// do, line 77
v_3 = limit - cursor;
do
{
// call consonant_pair, line 77
if (!r_consonant_pair())
{
break;
}
} while (false);
cursor = limit - v_3;
// do, line 78
v_4 = limit - cursor;
do
{
// call other_suffix, line 78
if (!r_other_suffix())
{
break;
}
} while (false);
cursor = limit - v_4;
cursor = limit_backward;
return true;
}
public string Lex(string s)
{
this.setCurrent(s.ToLowerInvariant());
this.CanStem();
return this.getCurrent();
}
}
}