org.tartarus.snowball

## Class SnowballProgram

- java.lang.Object
- - org.tartarus.snowball.SnowballProgram

- Direct Known Subclasses:
    ArabicStemmer, ArmenianStemmer, BasqueStemmer, CatalanStemmer, DanishStemmer, DutchStemmer, EnglishStemmer, FinnishStemmer, FrenchStemmer, German2Stemmer, GermanStemmer, HungarianStemmer, IrishStemmer, ItalianStemmer, KpStemmer, LithuanianStemmer, LovinsStemmer, NorwegianStemmer, PorterStemmer, PortugueseStemmer, RomanianStemmer, RussianStemmer, SpanishStemmer, SwedishStemmer, TurkishStemmer

      public abstract class SnowballProgram
      extends Object

  This is the rev 502 of the Snowball SVN trunk, now located at GitHub, but modified:
  - made abstract and introduced abstract method stem to avoid expensive reflection in filter class.
  - refactored StringBuffers to StringBuilder
  - uses char[] as buffer instead of StringBuffer/StringBuilder
  - eq_s,eq_s_b,insert,replace_s take CharSequence like eq_v and eq_v_b
  - use MethodHandles and fix method visibility bug.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected int` | `bra`
    `protected int` | `cursor`
    `protected int` | `ket`
    `protected int` | `limit`
    `protected int` | `limit_backward`

  - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `protected` | `SnowballProgram()`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected StringBuilder` | `assign_to(StringBuilder s)`
    `protected void` | `copy_from(SnowballProgram other)`
    `protected boolean` | `eq_s_b(int s_size, CharSequence s)`
    `protected boolean` | `eq_s(int s_size, CharSequence s)`
    `protected boolean` | `eq_v_b(CharSequence s)`
    `protected boolean` | `eq_v(CharSequence s)`
    `protected int` | `find_among_b(Among[] v, int v_size)`
    `protected int` | `find_among(Among[] v, int v_size)`
    `String` | `getCurrent()` Get the current string.
    `char[]` | `getCurrentBuffer()` Get the current buffer containing the stem.
    `int` | `getCurrentBufferLength()` Get the valid length of the character array in `getCurrentBuffer()`.
    `protected boolean` | `in_grouping_b(char[] s, int min, int max)`
    `protected boolean` | `in_grouping(char[] s, int min, int max)`
    `protected boolean` | `in_range_b(int min, int max)`
    `protected boolean` | `in_range(int min, int max)`
    `protected void` | `insert(int c_bra, int c_ket, CharSequence s)`
    `protected boolean` | `out_grouping_b(char[] s, int min, int max)`
    `protected boolean` | `out_grouping(char[] s, int min, int max)`
    `protected boolean` | `out_range_b(int min, int max)`
    `protected boolean` | `out_range(int min, int max)`
    `protected int` | `replace_s(int c_bra, int c_ket, CharSequence s)`
    `void` | `setCurrent(char[] text, int length)` Set the current string.
    `void` | `setCurrent(String value)` Set the current string.
    `protected void` | `slice_check()`
    `protected void` | `slice_del()`
    `protected void` | `slice_from(CharSequence s)`
    `protected StringBuilder` | `slice_to(StringBuilder s)`
    `abstract boolean` | `stem()`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### cursor

          protected int cursor

    - #### limit

          protected int limit

    - #### limit_backward

          protected int limit_backward

    - #### bra

          protected int bra

    - #### ket

          protected int ket

  - ### Constructor Detail

    - #### SnowballProgram

          protected SnowballProgram()

  - ### Method Detail

    - #### stem

          public abstract boolean stem()

    - #### setCurrent

          public void setCurrent(String value)

      Set the current string.

    - #### getCurrent

          public String getCurrent()

      Get the current string.

    - #### setCurrent

          public void setCurrent(char[] text,
                                 int length)

      Set the current string.
      Parameters:
        `text` - character array containing input
        `length` - valid length of text.

    - #### getCurrentBuffer

          public char[] getCurrentBuffer()

      Get the current buffer containing the stem.

      NOTE: this may be a reference to a different character array than the one originally provided with setCurrent, in the exceptional case that stemming produced a longer intermediate or result string.

      It is necessary to use `getCurrentBufferLength()` to determine the valid length of the returned buffer. For example, many words are stemmed simply by subtracting from the length to remove suffixes.

      See Also:
        `getCurrentBufferLength()`

    - #### getCurrentBufferLength

          public int getCurrentBufferLength()

      Get the valid length of the character array in `getCurrentBuffer()`.
      Returns:
        valid length of the array.

    - #### copy_from

          protected void copy_from(SnowballProgram other)

    - #### in_grouping

          protected boolean in_grouping(char[] s,
                                        int min,
                                        int max)

    - #### in_grouping_b

          protected boolean in_grouping_b(char[] s,
                                          int min,
                                          int max)

    - #### out_grouping

          protected boolean out_grouping(char[] s,
                                         int min,
                                         int max)

    - #### out_grouping_b

          protected boolean out_grouping_b(char[] s,
                                           int min,
                                           int max)

    - #### in_range

          protected boolean in_range(int min,
                                     int max)

    - #### in_range_b

          protected boolean in_range_b(int min,
                                       int max)

    - #### out_range

          protected boolean out_range(int min,
                                      int max)

    - #### out_range_b

          protected boolean out_range_b(int min,
                                        int max)

    - #### eq_s

          protected boolean eq_s(int s_size,
                                 CharSequence s)

    - #### eq_s_b

          protected boolean eq_s_b(int s_size,
                                   CharSequence s)

    - #### eq_v

          protected boolean eq_v(CharSequence s)

    - #### eq_v_b

          protected boolean eq_v_b(CharSequence s)

    - #### find_among

          protected int find_among(Among[] v,
                                   int v_size)

    - #### find_among_b

          protected int find_among_b(Among[] v,
                                     int v_size)

    - #### replace_s

          protected int replace_s(int c_bra,
                                  int c_ket,
                                  CharSequence s)

    - #### slice_check

          protected void slice_check()

    - #### slice_from

          protected void slice_from(CharSequence s)

    - #### slice_del

          protected void slice_del()

    - #### insert

          protected void insert(int c_bra,
                                int c_ket,
                                CharSequence s)

    - #### slice_to

          protected StringBuilder slice_to(StringBuilder s)

    - #### assign_to

          protected StringBuilder assign_to(StringBuilder s)

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