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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
commit0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch)
treea31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /intl/icu/source/common/unicode/parsepos.h
parentInitial commit. (diff)
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Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+* Copyright (C) 1997-2005, International Business Machines Corporation and others. All Rights Reserved.
+*******************************************************************************
+*
+* File PARSEPOS.H
+*
+* Modification History:
+*
+* Date Name Description
+* 07/09/97 helena Converted from java.
+* 07/17/98 stephen Added errorIndex support.
+* 05/11/99 stephen Cleaned up.
+*******************************************************************************
+*/
+
+#ifndef PARSEPOS_H
+#define PARSEPOS_H
+
+#include "unicode/utypes.h"
+
+#if U_SHOW_CPLUSPLUS_API
+
+#include "unicode/uobject.h"
+
+
+U_NAMESPACE_BEGIN
+
+/**
+ * \file
+ * \brief C++ API: Canonical Iterator
+ */
+/**
+ * <code>ParsePosition</code> is a simple class used by <code>Format</code>
+ * and its subclasses to keep track of the current position during parsing.
+ * The <code>parseObject</code> method in the various <code>Format</code>
+ * classes requires a <code>ParsePosition</code> object as an argument.
+ *
+ * <p>
+ * By design, as you parse through a string with different formats,
+ * you can use the same <code>ParsePosition</code>, since the index parameter
+ * records the current position.
+ *
+ * The ParsePosition class is not suitable for subclassing.
+ *
+ * @version 1.3 10/30/97
+ * @author Mark Davis, Helena Shih
+ * @see java.text.Format
+ */
+
+class U_COMMON_API ParsePosition : public UObject {
+public:
+ /**
+ * Default constructor, the index starts with 0 as default.
+ * @stable ICU 2.0
+ */
+ ParsePosition()
+ : UObject(),
+ index(0),
+ errorIndex(-1)
+ {}
+
+ /**
+ * Create a new ParsePosition with the given initial index.
+ * @param newIndex the new text offset.
+ * @stable ICU 2.0
+ */
+ ParsePosition(int32_t newIndex)
+ : UObject(),
+ index(newIndex),
+ errorIndex(-1)
+ {}
+
+ /**
+ * Copy constructor
+ * @param copy the object to be copied from.
+ * @stable ICU 2.0
+ */
+ ParsePosition(const ParsePosition& copy)
+ : UObject(copy),
+ index(copy.index),
+ errorIndex(copy.errorIndex)
+ {}
+
+ /**
+ * Destructor
+ * @stable ICU 2.0
+ */
+ virtual ~ParsePosition();
+
+ /**
+ * Assignment operator
+ * @stable ICU 2.0
+ */
+ inline ParsePosition& operator=(const ParsePosition& copy);
+
+ /**
+ * Equality operator.
+ * @return true if the two parse positions are equal, false otherwise.
+ * @stable ICU 2.0
+ */
+ inline bool operator==(const ParsePosition& that) const;
+
+ /**
+ * Equality operator.
+ * @return true if the two parse positions are not equal, false otherwise.
+ * @stable ICU 2.0
+ */
+ inline bool operator!=(const ParsePosition& that) const;
+
+ /**
+ * Clone this object.
+ * Clones can be used concurrently in multiple threads.
+ * If an error occurs, then nullptr is returned.
+ * The caller must delete the clone.
+ *
+ * @return a clone of this object
+ *
+ * @see getDynamicClassID
+ * @stable ICU 2.8
+ */
+ ParsePosition *clone() const;
+
+ /**
+ * Retrieve the current parse position. On input to a parse method, this
+ * is the index of the character at which parsing will begin; on output, it
+ * is the index of the character following the last character parsed.
+ * @return the current index.
+ * @stable ICU 2.0
+ */
+ inline int32_t getIndex(void) const;
+
+ /**
+ * Set the current parse position.
+ * @param index the new index.
+ * @stable ICU 2.0
+ */
+ inline void setIndex(int32_t index);
+
+ /**
+ * Set the index at which a parse error occurred. Formatters
+ * should set this before returning an error code from their
+ * parseObject method. The default value is -1 if this is not
+ * set.
+ * @stable ICU 2.0
+ */
+ inline void setErrorIndex(int32_t ei);
+
+ /**
+ * Retrieve the index at which an error occurred, or -1 if the
+ * error index has not been set.
+ * @stable ICU 2.0
+ */
+ inline int32_t getErrorIndex(void) const;
+
+ /**
+ * ICU "poor man's RTTI", 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.
+ *
+ * @stable ICU 2.2
+ */
+ virtual UClassID getDynamicClassID() const override;
+
+private:
+ /**
+ * Input: the place you start parsing.
+ * <br>Output: position where the parse stopped.
+ * This is designed to be used serially,
+ * with each call setting index up for the next one.
+ */
+ int32_t index;
+
+ /**
+ * The index at which a parse error occurred.
+ */
+ int32_t errorIndex;
+
+};
+
+inline ParsePosition&
+ParsePosition::operator=(const ParsePosition& copy)
+{
+ index = copy.index;
+ errorIndex = copy.errorIndex;
+ return *this;
+}
+
+inline bool
+ParsePosition::operator==(const ParsePosition& copy) const
+{
+ if(index != copy.index || errorIndex != copy.errorIndex)
+ return false;
+ else
+ return true;
+}
+
+inline bool
+ParsePosition::operator!=(const ParsePosition& copy) const
+{
+ return !operator==(copy);
+}
+
+inline int32_t
+ParsePosition::getIndex() const
+{
+ return index;
+}
+
+inline void
+ParsePosition::setIndex(int32_t offset)
+{
+ this->index = offset;
+}
+
+inline int32_t
+ParsePosition::getErrorIndex() const
+{
+ return errorIndex;
+}
+
+inline void
+ParsePosition::setErrorIndex(int32_t ei)
+{
+ this->errorIndex = ei;
+}
+U_NAMESPACE_END
+
+#endif /* U_SHOW_CPLUSPLUS_API */
+
+#endif