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ICU 77.1: icu::UnicodeReplacer Class Reference

UnicodeReplacer defines a protocol for objects that replace a range of characters in a Replaceable string with output text. More...

#include <unirepl.h>

UnicodeReplacer defines a protocol for objects that replace a range of characters in a Replaceable string with output text.

The replacement is done via the Replaceable API so as to preserve out-of-band data.

This is a mixin class.

Stable:
ICU 2.4

Definition at line 40 of file unirepl.h.

◆ ~UnicodeReplacer() virtual icu::UnicodeReplacer::~UnicodeReplacer ( ) virtual ◆ addReplacementSetTo() virtual void icu::UnicodeReplacer::addReplacementSetTo ( UnicodeSet &  toUnionTo ) const pure virtual

Union the set of all characters that may output by this object into the given set.

Parameters
toUnionTo the set into which to union the output characters
Stable:
ICU 2.4
◆ replace() virtual int32_t icu::UnicodeReplacer::replace ( Replaceable &  text, int32_t  start, int32_t  limit, int32_t &  cursor  ) pure virtual

Replace characters in 'text' from 'start' to 'limit' with the output text of this object.

Update the 'cursor' parameter to give the cursor position and return the length of the replacement text.

Parameters
text the text to be matched start inclusive start index of text to be replaced limit exclusive end index of text to be replaced; must be greater than or equal to start cursor output parameter for the cursor position. Not all replacer objects will update this, but in a complete tree of replacer objects, representing the entire output side of a transliteration rule, at least one must update it.
Returns
the number of 16-bit code units in the text replacing the characters at offsets start..(limit-1) in text
Stable:
ICU 2.4
◆ toReplacerPattern()

Returns a string representation of this replacer.

If the result of calling this function is passed to the appropriate parser, typically TransliteratorParser, it will produce another replacer that is equal to this one.

Parameters
result the string to receive the pattern. Previous contents will be deleted. escapeUnprintable if true then convert unprintable character to their hex escape representations, \uxxxx or \Uxxxxxxxx. Unprintable characters are defined by Utility.isUnprintable().
Returns
a reference to 'result'.
Stable:
ICU 2.4

The documentation for this class was generated from the following file:

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