organicmaps/icu
13
Fork 0
mirror of https://github.com/unicode-org/icu.git synced 2025-04-20 20:19:32 +00:00
Code Issues 1 Projects Releases Wiki Activity Actions 1

ICU-1837 use style context during replace

Browse source 
X-SVN-Rev: 10243
This commit is contained in:
Alan Liu 2002-11-14 00:06:24 +00:00
parent 00f5813d6a
commit e1a8b68095
1 changed files with 23 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
icu4j/src/com/ibm/icu/text/StringReplacer.java
View file

@ -136,11 +136,31 @@ class StringReplacer implements UnicodeReplacer {
* the integrity of indices into the key and surrounding context while
* generating the output text.
*/
int destStart = text.length(); // copy new text to here
int destLimit = destStart;
StringBuffer buf = new StringBuffer();
int oOutput; // offset into 'output'
isComplex = false;
// The temporary buffer starts at tempStart, and extends
// to destLimit. The start of the buffer has a single
// character from before the key. This provides style
// data when addition characters are filled into the
// temporary buffer. If there is nothing to the left, use
// the non-character U+FFFF, which Replaceable subclasses
// should treat specially as a "no-style character."
// destStart points to the point after the style context
// character, so it is tempStart+1 or tempStart+2.
int tempStart = text.length(); // start of temp buffer
int destStart = tempStart; // copy new text to here
if (start > 0) {
int len = UTF16.getCharCount(text.char32At(start-1));
text.copy(start-len, start, tempStart);
destStart += len;
} else {
text.replace(tempStart, tempStart, "\uFFFF");
destStart++;
}
int destLimit = destStart;
for (oOutput=0; oOutput<output.length(); ) {
if (oOutput == cursorPos) {
// Record the position of the cursor
@ -181,7 +201,7 @@ class StringReplacer implements UnicodeReplacer {
// Copy new text to start, and delete it
text.copy(destStart, destLimit, start);
text.replace(destStart + outLen, destLimit + outLen, "");
text.replace(tempStart + outLen, destLimit + outLen, "");
// Delete the old text (the key)
text.replace(start + outLen, limit + outLen, "");