Move ICU headers part 1

public/common/unicode/uchriter.h

-/*
-**********************************************************************
-*   Copyright (C) 1998-2005, International Business Machines
-*   Corporation and others.  All Rights Reserved.
-**********************************************************************
-*/
-
-#ifndef UCHRITER_H
-#define UCHRITER_H
-
-#include "unicode/utypes.h"
-#include "unicode/chariter.h"
-
-/**
- * \file 
- * \brief C++ API: UChar Character Iterator
- */
- 
-U_NAMESPACE_BEGIN
-
-/**
- * A concrete subclass of CharacterIterator that iterates over the
- * characters (code units or code points) in a UChar array.
- * It's possible not only to create an
- * iterator that iterates over an entire UChar array, but also to
- * create one that iterates over only a subrange of a UChar array
- * (iterators over different subranges of the same UChar array don't
- * compare equal).
- * @see CharacterIterator
- * @see ForwardCharacterIterator
- * @stable ICU 2.0
- */
-class U_COMMON_API UCharCharacterIterator : public CharacterIterator {
-public:
-  /**
-   * Create an iterator over the UChar array referred to by "textPtr".
-   * The iteration range is 0 to <code>length-1</code>.
-   * text is only aliased, not adopted (the
-   * destructor will not delete it).
-   * @param textPtr The UChar array to be iterated over
-   * @param length The length of the UChar array
-   * @stable ICU 2.0
-   */
-  UCharCharacterIterator(const UChar* textPtr, int32_t length);
-
-  /**
-   * Create an iterator over the UChar array referred to by "textPtr".
-   * The iteration range is 0 to <code>length-1</code>.
-   * text is only aliased, not adopted (the
-   * destructor will not delete it).
-   * The starting
-   * position is specified by "position". If "position" is outside the valid
-   * iteration range, the behavior of this object is undefined.
-   * @param textPtr The UChar array to be iteratd over
-   * @param length The length of the UChar array
-   * @param position The starting position of the iteration
-   * @stable ICU 2.0
-   */
-  UCharCharacterIterator(const UChar* textPtr, int32_t length,
-                         int32_t position);
-
-  /**
-   * Create an iterator over the UChar array referred to by "textPtr".
-   * The iteration range is 0 to <code>end-1</code>.
-   * text is only aliased, not adopted (the
-   * destructor will not delete it).
-   * The starting
-   * position is specified by "position". If begin and end do not
-   * form a valid iteration range or "position" is outside the valid
-   * iteration range, the behavior of this object is undefined.
-   * @param textPtr The UChar array to be iterated over
-   * @param length The length of the UChar array
-   * @param textBegin  The begin position of the iteration range
-   * @param textEnd    The end position of the iteration range
-   * @param position    The starting position of the iteration
-   * @stable ICU 2.0
-   */
-  UCharCharacterIterator(const UChar* textPtr, int32_t length,
-                         int32_t textBegin,
-                         int32_t textEnd,
-                         int32_t position);
-
-  /**
-   * Copy constructor.  The new iterator iterates over the same range
-   * of the same string as "that", and its initial position is the
-   * same as "that"'s current position.
-   * @param that The UCharCharacterIterator to be copied
-   * @stable ICU 2.0
-   */
-  UCharCharacterIterator(const UCharCharacterIterator&  that);
-
-  /**
-   * Destructor.
-   * @stable ICU 2.0
-   */
-  virtual ~UCharCharacterIterator();
-
-  /**
-   * Assignment operator.  *this is altered to iterate over the sane
-   * range of the same string as "that", and refers to the same
-   * character within that string as "that" does.
-   * @param that The object to be copied
-   * @return the newly created object
-   * @stable ICU 2.0
-   */
-  UCharCharacterIterator&
-  operator=(const UCharCharacterIterator&    that);
-
-  /**
-   * Returns true if the iterators iterate over the same range of the
-   * same string and are pointing at the same character.
-   * @param that The ForwardCharacterIterator used to be compared for equality
-   * @return true if the iterators iterate over the same range of the
-   * same string and are pointing at the same character.
-   * @stable ICU 2.0
-   */
-  virtual UBool          operator==(const ForwardCharacterIterator& that) const;
-
-  /**
-   * Generates a hash code for this iterator.
-   * @return the hash code.
-   * @stable ICU 2.0
-   */
-  virtual int32_t         hashCode(void) const;
-
-  /**
-   * Returns a new UCharCharacterIterator referring to the same
-   * character in the same range of the same string as this one.  The
-   * caller must delete the new iterator.
-   * @return the CharacterIterator newly created
-   * @stable ICU 2.0
-   */
-  virtual CharacterIterator* clone(void) const;
-
-  /**
-   * Sets the iterator to refer to the first code unit in its
-   * iteration range, and returns that code unit.
-   * This can be used to begin an iteration with next().
-   * @return the first code unit in its iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UChar         first(void);
-
-  /**
-   * Sets the iterator to refer to the first code unit in its
-   * iteration range, returns that code unit, and moves the position
-   * to the second code unit. This is an alternative to setToStart()
-   * for forward iteration with nextPostInc().
-   * @return the first code unit in its iteration range
-   * @stable ICU 2.0
-   */
-  virtual UChar         firstPostInc(void);
-
-  /**
-   * Sets the iterator to refer to the first code point in its
-   * iteration range, and returns that code unit,
-   * This can be used to begin an iteration with next32().
-   * Note that an iteration with next32PostInc(), beginning with,
-   * e.g., setToStart() or firstPostInc(), is more efficient.
-   * @return the first code point in its iteration range
-   * @stable ICU 2.0
-   */
-  virtual UChar32       first32(void);
-
-  /**
-   * Sets the iterator to refer to the first code point in its
-   * iteration range, returns that code point, and moves the position
-   * to the second code point. This is an alternative to setToStart()
-   * for forward iteration with next32PostInc().
-   * @return the first code point in its iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UChar32       first32PostInc(void);
-
-  /**
-   * Sets the iterator to refer to the last code unit in its
-   * iteration range, and returns that code unit.
-   * This can be used to begin an iteration with previous().
-   * @return the last code unit in its iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UChar         last(void);
-
-  /**
-   * Sets the iterator to refer to the last code point in its
-   * iteration range, and returns that code unit.
-   * This can be used to begin an iteration with previous32().
-   * @return the last code point in its iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UChar32       last32(void);
-
-  /**
-   * Sets the iterator to refer to the "position"-th code unit
-   * in the text-storage object the iterator refers to, and
-   * returns that code unit.
-   * @param position the position within the text-storage object
-   * @return the code unit
-   * @stable ICU 2.0
-   */
-  virtual UChar         setIndex(int32_t position);
-
-  /**
-   * Sets the iterator to refer to the beginning of the code point
-   * that contains the "position"-th code unit
-   * in the text-storage object the iterator refers to, and
-   * returns that code point.
-   * The current position is adjusted to the beginning of the code point
-   * (its first code unit).
-   * @param position the position within the text-storage object
-   * @return the code unit
-   * @stable ICU 2.0
-   */
-  virtual UChar32       setIndex32(int32_t position);
-
-  /**
-   * Returns the code unit the iterator currently refers to.
-   * @return the code unit the iterator currently refers to.
-   * @stable ICU 2.0
-   */
-  virtual UChar         current(void) const;
-
-  /**
-   * Returns the code point the iterator currently refers to.
-   * @return the code point the iterator currently refers to.
-   * @stable ICU 2.0
-   */
-  virtual UChar32       current32(void) const;
-
-  /**
-   * Advances to the next code unit in the iteration range (toward
-   * endIndex()), and returns that code unit.  If there are no more
-   * code units to return, returns DONE.
-   * @return the next code unit in the iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UChar         next(void);
-
-  /**
-   * Gets the current code unit for returning and advances to the next code unit
-   * in the iteration range
-   * (toward endIndex()).  If there are
-   * no more code units to return, returns DONE.
-   * @return the current code unit.
-   * @stable ICU 2.0
-   */
-  virtual UChar         nextPostInc(void);
-
-  /**
-   * Advances to the next code point in the iteration range (toward
-   * endIndex()), and returns that code point.  If there are no more
-   * code points to return, returns DONE.
-   * Note that iteration with "pre-increment" semantics is less
-   * efficient than iteration with "post-increment" semantics
-   * that is provided by next32PostInc().
-   * @return the next code point in the iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UChar32       next32(void);
-
-  /**
-   * Gets the current code point for returning and advances to the next code point
-   * in the iteration range
-   * (toward endIndex()).  If there are
-   * no more code points to return, returns DONE.
-   * @return the current point.
-   * @stable ICU 2.0
-   */
-  virtual UChar32       next32PostInc(void);
-
-  /**
-   * Returns FALSE if there are no more code units or code points
-   * at or after the current position in the iteration range.
-   * This is used with nextPostInc() or next32PostInc() in forward
-   * iteration.
-   * @return FALSE if there are no more code units or code points
-   * at or after the current position in the iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UBool        hasNext();
-
-  /**
-   * Advances to the previous code unit in the iteration range (toward
-   * startIndex()), and returns that code unit.  If there are no more
-   * code units to return, returns DONE.
-   * @return the previous code unit in the iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UChar         previous(void);
-
-  /**
-   * Advances to the previous code point in the iteration range (toward
-   * startIndex()), and returns that code point.  If there are no more
-   * code points to return, returns DONE.
-   * @return the previous code point in the iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UChar32       previous32(void);
-
-  /**
-   * Returns FALSE if there are no more code units or code points
-   * before the current position in the iteration range.
-   * This is used with previous() or previous32() in backward
-   * iteration.
-   * @return FALSE if there are no more code units or code points
-   * before the current position in the iteration range.
-   * @stable ICU 2.0
-   */
-  virtual UBool        hasPrevious();
-
-  /**
-   * Moves the current position relative to the start or end of the
-   * iteration range, or relative to the current position itself.
-   * The movement is expressed in numbers of code units forward
-   * or backward by specifying a positive or negative delta.
-   * @param delta the position relative to origin. A positive delta means forward;
-   * a negative delta means backward.
-   * @param origin Origin enumeration {kStart, kCurrent, kEnd}
-   * @return the new position
-   * @stable ICU 2.0
-   */
-  virtual int32_t      move(int32_t delta, EOrigin origin);
-
-  /**
-   * Moves the current position relative to the start or end of the
-   * iteration range, or relative to the current position itself.
-   * The movement is expressed in numbers of code points forward
-   * or backward by specifying a positive or negative delta.
-   * @param delta the position relative to origin. A positive delta means forward;
-   * a negative delta means backward.
-   * @param origin Origin enumeration {kStart, kCurrent, kEnd}
-   * @return the new position
-   * @stable ICU 2.0
-   */
-  virtual int32_t      move32(int32_t delta, EOrigin origin);
-
-  /**
-   * Sets the iterator to iterate over a new range of text
-   * @stable ICU 2.0
-   */
-  void setText(const UChar* newText, int32_t newTextLength);
-
-  /**
-   * Copies the UChar array under iteration into the UnicodeString
-   * referred to by "result".  Even if this iterator iterates across
-   * only a part of this string, the whole string is copied.
-   * @param result Receives a copy of the text under iteration.
-   * @stable ICU 2.0
-   */
-  virtual void            getText(UnicodeString& result);
-
-  /**
-   * Return a class ID for this class (not really public)
-   * @return a class ID for this class
-   * @stable ICU 2.0
-   */
-  static UClassID         U_EXPORT2 getStaticClassID(void);
-
-  /**
-   * Return a class ID for this object (not really public)
-   * @return a class ID for this object.
-   * @stable ICU 2.0
-   */
-  virtual UClassID        getDynamicClassID(void) const;
-
-protected:
-  /**
-   * Protected constructor
-   * @stable ICU 2.0
-   */
-  UCharCharacterIterator();
-  /**
-   * Protected member text
-   * @stable ICU 2.0
-   */
-  const UChar*            text;
-
-};
-
-U_NAMESPACE_END
-#endif