From c34f0ecd83e485579059561a3e5b615c9fdd0dea Mon Sep 17 00:00:00 2001
From: George Rhoten <grhoten@users.noreply.github.com>
Date: Sat, 30 Sep 2006 00:37:45 +0000
Subject: [PATCH] ICU-5426 Compact cached UnicodeSets, and make setCharacters
 take a const UnicodeSet.

X-SVN-Rev: 20460
---
 icu4c/source/common/dictbe.cpp | 10 +++++++++-
 icu4c/source/common/dictbe.h   |  2 +-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/icu4c/source/common/dictbe.cpp b/icu4c/source/common/dictbe.cpp
index ac774f7c765..1ff74e00562 100644
--- a/icu4c/source/common/dictbe.cpp
+++ b/icu4c/source/common/dictbe.cpp
@@ -81,8 +81,10 @@ DictionaryBreakEngine::findBreaks( UText *text,
 }
 
 void
-DictionaryBreakEngine::setCharacters( UnicodeSet &set ) {
+DictionaryBreakEngine::setCharacters( const UnicodeSet &set ) {
     fSet = set;
+    // Compact for caching
+    fSet.compact();
 }
 
 /*void
@@ -225,6 +227,12 @@ ThaiBreakEngine::ThaiBreakEngine(const TrieWordDictionary *adoptDictionary, UErr
     fBeginWordSet.add(0x0E40, 0x0E44);      // SARA E through SARA AI MAIMALAI
     fSuffixSet.add(THAI_PAIYANNOI);
     fSuffixSet.add(THAI_MAIYAMOK);
+
+    // Compact for caching.
+    fMarkSet.compact();
+    fEndWordSet.compact();
+    fBeginWordSet.compact();
+    fSuffixSet.compact();
 }
 
 ThaiBreakEngine::~ThaiBreakEngine() {
diff --git a/icu4c/source/common/dictbe.h b/icu4c/source/common/dictbe.h
index 80a52f57e16..d6f8b1462d2 100644
--- a/icu4c/source/common/dictbe.h
+++ b/icu4c/source/common/dictbe.h
@@ -104,7 +104,7 @@ class DictionaryBreakEngine : public LanguageBreakEngine {
   *
   * @param set A UnicodeSet of the set of characters handled by the engine
   */
-  virtual void setCharacters( UnicodeSet &set );
+  virtual void setCharacters( const UnicodeSet &set );
 
  /**
   * <p>Set the break types handled by this engine.</p>