--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textshaperplugin/IcuSource/common/unicode/normlzr.h Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,820 @@
+/*
+ ********************************************************************
+ * COPYRIGHT:
+ * Copyright (c) 1996-2005, International Business Machines Corporation and
+ * others. All Rights Reserved.
+ ********************************************************************
+ */
+
+#ifndef NORMLZR_H
+#define NORMLZR_H
+
+#include "unicode/utypes.h"
+
+/**
+ * \file
+ * \brief C++ API: Unicode Normalization
+ */
+
+#if !UCONFIG_NO_NORMALIZATION
+
+#include "unicode/uobject.h"
+#include "unicode/unistr.h"
+#include "unicode/chariter.h"
+#include "unicode/unorm.h"
+
+
+struct UCharIterator;
+typedef struct UCharIterator UCharIterator; /**< C typedef for struct UCharIterator. @stable ICU 2.1 */
+
+U_NAMESPACE_BEGIN
+/**
+ *
+ * The Normalizer class consists of two parts:
+ * - static functions that normalize strings or test if strings are normalized
+ * - a Normalizer object is an iterator that takes any kind of text and
+ * provides iteration over its normalized form
+ *
+ * The Normalizer class is not suitable for subclassing.
+ *
+ * The static functions are basically wrappers around the C implementation,
+ * using UnicodeString instead of UChar*.
+ * For basic information about normalization forms and details about the C API
+ * please see the documentation in unorm.h.
+ *
+ * The iterator API with the Normalizer constructors and the non-static functions
+ * uses a CharacterIterator as input. It is possible to pass a string which
+ * is then internally wrapped in a CharacterIterator.
+ * The input text is not normalized all at once, but incrementally where needed
+ * (providing efficient random access).
+ * This allows to pass in a large text but spend only a small amount of time
+ * normalizing a small part of that text.
+ * However, if the entire text is normalized, then the iterator will be
+ * slower than normalizing the entire text at once and iterating over the result.
+ * A possible use of the Normalizer iterator is also to report an index into the
+ * original text that is close to where the normalized characters come from.
+ *
+ * <em>Important:</em> The iterator API was cleaned up significantly for ICU 2.0.
+ * The earlier implementation reported the getIndex() inconsistently,
+ * and previous() could not be used after setIndex(), next(), first(), and current().
+ *
+ * Normalizer allows to start normalizing from anywhere in the input text by
+ * calling setIndexOnly(), first(), or last().
+ * Without calling any of these, the iterator will start at the beginning of the text.
+ *
+ * At any time, next() returns the next normalized code point (UChar32),
+ * with post-increment semantics (like CharacterIterator::next32PostInc()).
+ * previous() returns the previous normalized code point (UChar32),
+ * with pre-decrement semantics (like CharacterIterator::previous32()).
+ *
+ * current() returns the current code point
+ * (respectively the one at the newly set index) without moving
+ * the getIndex(). Note that if the text at the current position
+ * needs to be normalized, then these functions will do that.
+ * (This is why current() is not const.)
+ * It is more efficient to call setIndexOnly() instead, which does not
+ * normalize.
+ *
+ * getIndex() always refers to the position in the input text where the normalized
+ * code points are returned from. It does not always change with each returned
+ * code point.
+ * The code point that is returned from any of the functions
+ * corresponds to text at or after getIndex(), according to the
+ * function's iteration semantics (post-increment or pre-decrement).
+ *
+ * next() returns a code point from at or after the getIndex()
+ * from before the next() call. After the next() call, the getIndex()
+ * might have moved to where the next code point will be returned from
+ * (from a next() or current() call).
+ * This is semantically equivalent to array access with array[index++]
+ * (post-increment semantics).
+ *
+ * previous() returns a code point from at or after the getIndex()
+ * from after the previous() call.
+ * This is semantically equivalent to array access with array[--index]
+ * (pre-decrement semantics).
+ *
+ * Internally, the Normalizer iterator normalizes a small piece of text
+ * starting at the getIndex() and ending at a following "safe" index.
+ * The normalized results is stored in an internal string buffer, and
+ * the code points are iterated from there.
+ * With multiple iteration calls, this is repeated until the next piece
+ * of text needs to be normalized, and the getIndex() needs to be moved.
+ *
+ * The following "safe" index, the internal buffer, and the secondary
+ * iteration index into that buffer are not exposed on the API.
+ * This also means that it is currently not practical to return to
+ * a particular, arbitrary position in the text because one would need to
+ * know, and be able to set, in addition to the getIndex(), at least also the
+ * current index into the internal buffer.
+ * It is currently only possible to observe when getIndex() changes
+ * (with careful consideration of the iteration semantics),
+ * at which time the internal index will be 0.
+ * For example, if getIndex() is different after next() than before it,
+ * then the internal index is 0 and one can return to this getIndex()
+ * later with setIndexOnly().
+ *
+ * @author Laura Werner, Mark Davis, Markus Scherer
+ * @stable ICU 2.0
+ */
+class U_COMMON_API Normalizer : public UObject {
+public:
+ /**
+ * If DONE is returned from an iteration function that returns a code point,
+ * then there are no more normalization results available.
+ * @stable ICU 2.0
+ */
+ enum {
+ DONE=0xffff
+ };
+
+ // Constructors
+
+ /**
+ * Creates a new <code>Normalizer</code> object for iterating over the
+ * normalized form of a given string.
+ * <p>
+ * @param str The string to be normalized. The normalization
+ * will start at the beginning of the string.
+ *
+ * @param mode The normalization mode.
+ * @stable ICU 2.0
+ */
+ Normalizer(const UnicodeString& str, UNormalizationMode mode);
+
+ /**
+ * Creates a new <code>Normalizer</code> object for iterating over the
+ * normalized form of a given string.
+ * <p>
+ * @param str The string to be normalized. The normalization
+ * will start at the beginning of the string.
+ *
+ * @param length Length of the string, or -1 if NUL-terminated.
+ * @param mode The normalization mode.
+ * @stable ICU 2.0
+ */
+ Normalizer(const UChar* str, int32_t length, UNormalizationMode mode);
+
+ /**
+ * Creates a new <code>Normalizer</code> object for iterating over the
+ * normalized form of the given text.
+ * <p>
+ * @param iter The input text to be normalized. The normalization
+ * will start at the beginning of the string.
+ *
+ * @param mode The normalization mode.
+ * @stable ICU 2.0
+ */
+ Normalizer(const CharacterIterator& iter, UNormalizationMode mode);
+
+ /**
+ * Copy constructor.
+ * @param copy The object to be copied.
+ * @stable ICU 2.0
+ */
+ Normalizer(const Normalizer& copy);
+
+ /**
+ * Destructor
+ * @stable ICU 2.0
+ */
+ virtual ~Normalizer();
+
+
+ //-------------------------------------------------------------------------
+ // Static utility methods
+ //-------------------------------------------------------------------------
+
+ /**
+ * Normalizes a <code>UnicodeString</code> according to the specified normalization mode.
+ * This is a wrapper for unorm_normalize(), using UnicodeString's.
+ *
+ * The <code>options</code> parameter specifies which optional
+ * <code>Normalizer</code> features are to be enabled for this operation.
+ *
+ * @param source the input string to be normalized.
+ * @param mode the normalization mode
+ * @param options the optional features to be enabled (0 for no options)
+ * @param result The normalized string (on output).
+ * @param status The error code.
+ * @stable ICU 2.0
+ */
+ static void U_EXPORT2 normalize(const UnicodeString& source,
+ UNormalizationMode mode, int32_t options,
+ UnicodeString& result,
+ UErrorCode &status);
+
+ /**
+ * Compose a <code>UnicodeString</code>.
+ * This is equivalent to normalize() with mode UNORM_NFC or UNORM_NFKC.
+ * This is a wrapper for unorm_normalize(), using UnicodeString's.
+ *
+ * The <code>options</code> parameter specifies which optional
+ * <code>Normalizer</code> features are to be enabled for this operation.
+ *
+ * @param source the string to be composed.
+ * @param compat Perform compatibility decomposition before composition.
+ * If this argument is <code>FALSE</code>, only canonical
+ * decomposition will be performed.
+ * @param options the optional features to be enabled (0 for no options)
+ * @param result The composed string (on output).
+ * @param status The error code.
+ * @stable ICU 2.0
+ */
+ static void U_EXPORT2 compose(const UnicodeString& source,
+ UBool compat, int32_t options,
+ UnicodeString& result,
+ UErrorCode &status);
+
+ /**
+ * Static method to decompose a <code>UnicodeString</code>.
+ * This is equivalent to normalize() with mode UNORM_NFD or UNORM_NFKD.
+ * This is a wrapper for unorm_normalize(), using UnicodeString's.
+ *
+ * The <code>options</code> parameter specifies which optional
+ * <code>Normalizer</code> features are to be enabled for this operation.
+ *
+ * @param source the string to be decomposed.
+ * @param compat Perform compatibility decomposition.
+ * If this argument is <code>FALSE</code>, only canonical
+ * decomposition will be performed.
+ * @param options the optional features to be enabled (0 for no options)
+ * @param result The decomposed string (on output).
+ * @param status The error code.
+ * @stable ICU 2.0
+ */
+ static void U_EXPORT2 decompose(const UnicodeString& source,
+ UBool compat, int32_t options,
+ UnicodeString& result,
+ UErrorCode &status);
+
+ /**
+ * Performing quick check on a string, to quickly determine if the string is
+ * in a particular normalization format.
+ * This is a wrapper for unorm_quickCheck(), using a UnicodeString.
+ *
+ * Three types of result can be returned UNORM_YES, UNORM_NO or
+ * UNORM_MAYBE. Result UNORM_YES indicates that the argument
+ * string is in the desired normalized format, UNORM_NO determines that
+ * argument string is not in the desired normalized format. A
+ * UNORM_MAYBE result indicates that a more thorough check is required,
+ * the user may have to put the string in its normalized form and compare the
+ * results.
+ * @param source string for determining if it is in a normalized format
+ * @param mode normalization format
+ * @param status A reference to a UErrorCode to receive any errors
+ * @return UNORM_YES, UNORM_NO or UNORM_MAYBE
+ *
+ * @see isNormalized
+ * @stable ICU 2.0
+ */
+ static inline UNormalizationCheckResult
+ quickCheck(const UnicodeString &source, UNormalizationMode mode, UErrorCode &status);
+
+ /**
+ * Performing quick check on a string; same as the other version of quickCheck
+ * but takes an extra options parameter like most normalization functions.
+ *
+ * @param source string for determining if it is in a normalized format
+ * @param mode normalization format
+ * @param options the optional features to be enabled (0 for no options)
+ * @param status A reference to a UErrorCode to receive any errors
+ * @return UNORM_YES, UNORM_NO or UNORM_MAYBE
+ *
+ * @see isNormalized
+ * @stable ICU 2.6
+ */
+ static inline UNormalizationCheckResult
+ quickCheck(const UnicodeString &source, UNormalizationMode mode, int32_t options, UErrorCode &status);
+
+ /**
+ * Test if a string is in a given normalization form.
+ * This is semantically equivalent to source.equals(normalize(source, mode)) .
+ *
+ * Unlike unorm_quickCheck(), this function returns a definitive result,
+ * never a "maybe".
+ * For NFD, NFKD, and FCD, both functions work exactly the same.
+ * For NFC and NFKC where quickCheck may return "maybe", this function will
+ * perform further tests to arrive at a TRUE/FALSE result.
+ *
+ * @param src String that is to be tested if it is in a normalization format.
+ * @param mode Which normalization form to test for.
+ * @param errorCode ICU error code in/out parameter.
+ * Must fulfill U_SUCCESS before the function call.
+ * @return Boolean value indicating whether the source string is in the
+ * "mode" normalization form.
+ *
+ * @see quickCheck
+ * @stable ICU 2.2
+ */
+ static inline UBool
+ isNormalized(const UnicodeString &src, UNormalizationMode mode, UErrorCode &errorCode);
+
+ /**
+ * Test if a string is in a given normalization form; same as the other version of isNormalized
+ * but takes an extra options parameter like most normalization functions.
+ *
+ * @param src String that is to be tested if it is in a normalization format.
+ * @param mode Which normalization form to test for.
+ * @param options the optional features to be enabled (0 for no options)
+ * @param errorCode ICU error code in/out parameter.
+ * Must fulfill U_SUCCESS before the function call.
+ * @return Boolean value indicating whether the source string is in the
+ * "mode" normalization form.
+ *
+ * @see quickCheck
+ * @stable ICU 2.6
+ */
+ static inline UBool
+ isNormalized(const UnicodeString &src, UNormalizationMode mode, int32_t options, UErrorCode &errorCode);
+
+ /**
+ * Concatenate normalized strings, making sure that the result is normalized as well.
+ *
+ * If both the left and the right strings are in
+ * the normalization form according to "mode/options",
+ * then the result will be
+ *
+ * \code
+ * dest=normalize(left+right, mode, options)
+ * \endcode
+ *
+ * For details see unorm_concatenate in unorm.h.
+ *
+ * @param left Left source string.
+ * @param right Right source string.
+ * @param result The output string.
+ * @param mode The normalization mode.
+ * @param options A bit set of normalization options.
+ * @param errorCode ICU error code in/out parameter.
+ * Must fulfill U_SUCCESS before the function call.
+ * @return result
+ *
+ * @see unorm_concatenate
+ * @see normalize
+ * @see unorm_next
+ * @see unorm_previous
+ *
+ * @stable ICU 2.1
+ */
+ static UnicodeString &
+ U_EXPORT2 concatenate(UnicodeString &left, UnicodeString &right,
+ UnicodeString &result,
+ UNormalizationMode mode, int32_t options,
+ UErrorCode &errorCode);
+
+ /**
+ * Compare two strings for canonical equivalence.
+ * Further options include case-insensitive comparison and
+ * code point order (as opposed to code unit order).
+ *
+ * Canonical equivalence between two strings is defined as their normalized
+ * forms (NFD or NFC) being identical.
+ * This function compares strings incrementally instead of normalizing
+ * (and optionally case-folding) both strings entirely,
+ * improving performance significantly.
+ *
+ * Bulk normalization is only necessary if the strings do not fulfill the FCD
+ * conditions. Only in this case, and only if the strings are relatively long,
+ * is memory allocated temporarily.
+ * For FCD strings and short non-FCD strings there is no memory allocation.
+ *
+ * Semantically, this is equivalent to
+ * strcmp[CodePointOrder](NFD(foldCase(s1)), NFD(foldCase(s2)))
+ * where code point order and foldCase are all optional.
+ *
+ * UAX 21 2.5 Caseless Matching specifies that for a canonical caseless match
+ * the case folding must be performed first, then the normalization.
+ *
+ * @param s1 First source string.
+ * @param s2 Second source string.
+ *
+ * @param options A bit set of options:
+ * - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ * Case-sensitive comparison in code unit order, and the input strings
+ * are quick-checked for FCD.
+ *
+ * - UNORM_INPUT_IS_FCD
+ * Set if the caller knows that both s1 and s2 fulfill the FCD conditions.
+ * If not set, the function will quickCheck for FCD
+ * and normalize if necessary.
+ *
+ * - U_COMPARE_CODE_POINT_ORDER
+ * Set to choose code point order instead of code unit order
+ * (see u_strCompare for details).
+ *
+ * - U_COMPARE_IGNORE_CASE
+ * Set to compare strings case-insensitively using case folding,
+ * instead of case-sensitively.
+ * If set, then the following case folding options are used.
+ *
+ * - Options as used with case-insensitive comparisons, currently:
+ *
+ * - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ * (see u_strCaseCompare for details)
+ *
+ * - regular normalization options shifted left by UNORM_COMPARE_NORM_OPTIONS_SHIFT
+ *
+ * @param errorCode ICU error code in/out parameter.
+ * Must fulfill U_SUCCESS before the function call.
+ * @return <0 or 0 or >0 as usual for string comparisons
+ *
+ * @see unorm_compare
+ * @see normalize
+ * @see UNORM_FCD
+ * @see u_strCompare
+ * @see u_strCaseCompare
+ *
+ * @stable ICU 2.2
+ */
+ static inline int32_t
+ compare(const UnicodeString &s1, const UnicodeString &s2,
+ uint32_t options,
+ UErrorCode &errorCode);
+
+ //-------------------------------------------------------------------------
+ // Iteration API
+ //-------------------------------------------------------------------------
+
+ /**
+ * Return the current character in the normalized text.
+ * current() may need to normalize some text at getIndex().
+ * The getIndex() is not changed.
+ *
+ * @return the current normalized code point
+ * @stable ICU 2.0
+ */
+ UChar32 current(void);
+
+ /**
+ * Return the first character in the normalized text.
+ * This is equivalent to setIndexOnly(startIndex()) followed by next().
+ * (Post-increment semantics.)
+ *
+ * @return the first normalized code point
+ * @stable ICU 2.0
+ */
+ UChar32 first(void);
+
+ /**
+ * Return the last character in the normalized text.
+ * This is equivalent to setIndexOnly(endIndex()) followed by previous().
+ * (Pre-decrement semantics.)
+ *
+ * @return the last normalized code point
+ * @stable ICU 2.0
+ */
+ UChar32 last(void);
+
+ /**
+ * Return the next character in the normalized text.
+ * (Post-increment semantics.)
+ * If the end of the text has already been reached, DONE is returned.
+ * The DONE value could be confused with a U+FFFF non-character code point
+ * in the text. If this is possible, you can test getIndex()<endIndex()
+ * before calling next(), or (getIndex()<endIndex() || last()!=DONE)
+ * after calling next(). (Calling last() will change the iterator state!)
+ *
+ * The C API unorm_next() is more efficient and does not have this ambiguity.
+ *
+ * @return the next normalized code point
+ * @stable ICU 2.0
+ */
+ UChar32 next(void);
+
+ /**
+ * Return the previous character in the normalized text and decrement.
+ * (Pre-decrement semantics.)
+ * If the beginning of the text has already been reached, DONE is returned.
+ * The DONE value could be confused with a U+FFFF non-character code point
+ * in the text. If this is possible, you can test
+ * (getIndex()>startIndex() || first()!=DONE). (Calling first() will change
+ * the iterator state!)
+ *
+ * The C API unorm_previous() is more efficient and does not have this ambiguity.
+ *
+ * @return the previous normalized code point
+ * @stable ICU 2.0
+ */
+ UChar32 previous(void);
+
+ /**
+ * Set the iteration position in the input text that is being normalized,
+ * without any immediate normalization.
+ * After setIndexOnly(), getIndex() will return the same index that is
+ * specified here.
+ *
+ * @param index the desired index in the input text.
+ * @stable ICU 2.0
+ */
+ void setIndexOnly(int32_t index);
+
+ /**
+ * Reset the index to the beginning of the text.
+ * This is equivalent to setIndexOnly(startIndex)).
+ * @stable ICU 2.0
+ */
+ void reset(void);
+
+ /**
+ * Retrieve the current iteration position in the input text that is
+ * being normalized.
+ *
+ * A following call to next() will return a normalized code point from
+ * the input text at or after this index.
+ *
+ * After a call to previous(), getIndex() will point at or before the
+ * position in the input text where the normalized code point
+ * was returned from with previous().
+ *
+ * @return the current index in the input text
+ * @stable ICU 2.0
+ */
+ int32_t getIndex(void) const;
+
+ /**
+ * Retrieve the index of the start of the input text. This is the begin index
+ * of the <code>CharacterIterator</code> or the start (i.e. index 0) of the string
+ * over which this <code>Normalizer</code> is iterating.
+ *
+ * @return the smallest index in the input text where the Normalizer operates
+ * @stable ICU 2.0
+ */
+ int32_t startIndex(void) const;
+
+ /**
+ * Retrieve the index of the end of the input text. This is the end index
+ * of the <code>CharacterIterator</code> or the length of the string
+ * over which this <code>Normalizer</code> is iterating.
+ * This end index is exclusive, i.e., the Normalizer operates only on characters
+ * before this index.
+ *
+ * @return the first index in the input text where the Normalizer does not operate
+ * @stable ICU 2.0
+ */
+ int32_t endIndex(void) const;
+
+ /**
+ * Returns TRUE when both iterators refer to the same character in the same
+ * input text.
+ *
+ * @param that a Normalizer object to compare this one to
+ * @return comparison result
+ * @stable ICU 2.0
+ */
+ UBool operator==(const Normalizer& that) const;
+
+ /**
+ * Returns FALSE when both iterators refer to the same character in the same
+ * input text.
+ *
+ * @param that a Normalizer object to compare this one to
+ * @return comparison result
+ * @stable ICU 2.0
+ */
+ inline UBool operator!=(const Normalizer& that) const;
+
+ /**
+ * Returns a pointer to a new Normalizer that is a clone of this one.
+ * The caller is responsible for deleting the new clone.
+ * @return a pointer to a new Normalizer
+ * @stable ICU 2.0
+ */
+ Normalizer* clone(void) const;
+
+ /**
+ * Generates a hash code for this iterator.
+ *
+ * @return the hash code
+ * @stable ICU 2.0
+ */
+ int32_t hashCode(void) const;
+
+ //-------------------------------------------------------------------------
+ // Property access methods
+ //-------------------------------------------------------------------------
+
+ /**
+ * Set the normalization mode for this object.
+ * <p>
+ * <b>Note:</b>If the normalization mode is changed while iterating
+ * over a string, calls to {@link #next() } and {@link #previous() } may
+ * return previously buffers characters in the old normalization mode
+ * until the iteration is able to re-sync at the next base character.
+ * It is safest to call {@link #setIndexOnly }, {@link #reset() },
+ * {@link #setText }, {@link #first() },
+ * {@link #last() }, etc. after calling <code>setMode</code>.
+ * <p>
+ * @param newMode the new mode for this <code>Normalizer</code>.
+ * @see #getUMode
+ * @stable ICU 2.0
+ */
+ void setMode(UNormalizationMode newMode);
+
+ /**
+ * Return the normalization mode for this object.
+ *
+ * This is an unusual name because there used to be a getMode() that
+ * returned a different type.
+ *
+ * @return the mode for this <code>Normalizer</code>
+ * @see #setMode
+ * @stable ICU 2.0
+ */
+ UNormalizationMode getUMode(void) const;
+
+ /**
+ * Set options that affect this <code>Normalizer</code>'s operation.
+ * Options do not change the basic composition or decomposition operation
+ * that is being performed, but they control whether
+ * certain optional portions of the operation are done.
+ * Currently the only available option is obsolete.
+ *
+ * It is possible to specify multiple options that are all turned on or off.
+ *
+ * @param option the option(s) whose value is/are to be set.
+ * @param value the new setting for the option. Use <code>TRUE</code> to
+ * turn the option(s) on and <code>FALSE</code> to turn it/them off.
+ *
+ * @see #getOption
+ * @stable ICU 2.0
+ */
+ void setOption(int32_t option,
+ UBool value);
+
+ /**
+ * Determine whether an option is turned on or off.
+ * If multiple options are specified, then the result is TRUE if any
+ * of them are set.
+ * <p>
+ * @param option the option(s) that are to be checked
+ * @return TRUE if any of the option(s) are set
+ * @see #setOption
+ * @stable ICU 2.0
+ */
+ UBool getOption(int32_t option) const;
+
+ /**
+ * Set the input text over which this <code>Normalizer</code> will iterate.
+ * The iteration position is set to the beginning.
+ *
+ * @param newText a string that replaces the current input text
+ * @param status a UErrorCode
+ * @stable ICU 2.0
+ */
+ void setText(const UnicodeString& newText,
+ UErrorCode &status);
+
+ /**
+ * Set the input text over which this <code>Normalizer</code> will iterate.
+ * The iteration position is set to the beginning.
+ *
+ * @param newText a CharacterIterator object that replaces the current input text
+ * @param status a UErrorCode
+ * @stable ICU 2.0
+ */
+ void setText(const CharacterIterator& newText,
+ UErrorCode &status);
+
+ /**
+ * Set the input text over which this <code>Normalizer</code> will iterate.
+ * The iteration position is set to the beginning.
+ *
+ * @param newText a string that replaces the current input text
+ * @param length the length of the string, or -1 if NUL-terminated
+ * @param status a UErrorCode
+ * @stable ICU 2.0
+ */
+ void setText(const UChar* newText,
+ int32_t length,
+ UErrorCode &status);
+ /**
+ * Copies the input text into the UnicodeString argument.
+ *
+ * @param result Receives a copy of the text under iteration.
+ * @stable ICU 2.0
+ */
+ void getText(UnicodeString& result);
+
+ /**
+ * ICU "poor man's RTTI", returns a UClassID for this class.
+ * @returns a UClassID for this class.
+ * @stable ICU 2.2
+ */
+ static UClassID U_EXPORT2 getStaticClassID();
+
+ /**
+ * ICU "poor man's RTTI", returns a UClassID for the actual class.
+ * @return a UClassID for the actual class.
+ * @stable ICU 2.2
+ */
+ virtual UClassID getDynamicClassID() const;
+
+private:
+ //-------------------------------------------------------------------------
+ // Private functions
+ //-------------------------------------------------------------------------
+
+ Normalizer(); // default constructor not implemented
+ Normalizer &operator=(const Normalizer &that); // assignment operator not implemented
+
+ // Private utility methods for iteration
+ // For documentation, see the source code
+ UBool nextNormalize();
+ UBool previousNormalize();
+
+ void init(CharacterIterator *iter);
+ void clearBuffer(void);
+
+ //-------------------------------------------------------------------------
+ // Private data
+ //-------------------------------------------------------------------------
+
+ UNormalizationMode fUMode;
+ int32_t fOptions;
+
+ // The input text and our position in it
+ UCharIterator *text;
+
+ // The normalization buffer is the result of normalization
+ // of the source in [currentIndex..nextIndex[ .
+ int32_t currentIndex, nextIndex;
+
+ // A buffer for holding intermediate results
+ UnicodeString buffer;
+ int32_t bufferPos;
+
+};
+
+//-------------------------------------------------------------------------
+// Inline implementations
+//-------------------------------------------------------------------------
+
+inline UBool
+Normalizer::operator!= (const Normalizer& other) const
+{ return ! operator==(other); }
+
+inline UNormalizationCheckResult
+Normalizer::quickCheck(const UnicodeString& source,
+ UNormalizationMode mode,
+ UErrorCode &status) {
+ if(U_FAILURE(status)) {
+ return UNORM_MAYBE;
+ }
+
+ return unorm_quickCheck(source.getBuffer(), source.length(),
+ mode, &status);
+}
+
+inline UNormalizationCheckResult
+Normalizer::quickCheck(const UnicodeString& source,
+ UNormalizationMode mode, int32_t options,
+ UErrorCode &status) {
+ if(U_FAILURE(status)) {
+ return UNORM_MAYBE;
+ }
+
+ return unorm_quickCheckWithOptions(source.getBuffer(), source.length(),
+ mode, options, &status);
+}
+
+inline UBool
+Normalizer::isNormalized(const UnicodeString& source,
+ UNormalizationMode mode,
+ UErrorCode &status) {
+ if(U_FAILURE(status)) {
+ return FALSE;
+ }
+
+ return unorm_isNormalized(source.getBuffer(), source.length(),
+ mode, &status);
+}
+
+inline UBool
+Normalizer::isNormalized(const UnicodeString& source,
+ UNormalizationMode mode, int32_t options,
+ UErrorCode &status) {
+ if(U_FAILURE(status)) {
+ return FALSE;
+ }
+
+ return unorm_isNormalizedWithOptions(source.getBuffer(), source.length(),
+ mode, options, &status);
+}
+
+inline int32_t
+Normalizer::compare(const UnicodeString &s1, const UnicodeString &s2,
+ uint32_t options,
+ UErrorCode &errorCode) {
+ // all argument checking is done in unorm_compare
+ return unorm_compare(s1.getBuffer(), s1.length(),
+ s2.getBuffer(), s2.length(),
+ options,
+ &errorCode);
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_NORMALIZATION */
+
+#endif // NORMLZR_H