Hi,
here is what i did with poi library to implement find and search in a MS
WORD DOC :
the replace is working but the format of modified document is altered :
many newlines and pages are inserted in result document.
the steps i did :
1. get the cvs code of scratchpad related to hwfp package.
2. add following method to class Range :
code:
------------------------------------------------------------------------
/**
* Replaces the text of this range with
* some other text
* @param text
*/
public void replaceWith( String text){
initAll();
TextPiece tp = (TextPiece)_text.get(_textStart);
StringBuffer sb = (StringBuffer)tp.getStringBuffer();
int start = _start > tp.getStart() ? _start - tp.getStart() : 0;
int end = _end <= tp.getEnd() ? _end - tp.getStart() : tp.getEnd() -
tp.getStart();
if(tp.usesUnicode()) // convert the byte pointers to char pointers
{
start/=2;
end/=2;
}
String oldText= sb.substring(start, end);
int length = 0;
if ( text.length() > oldText.length() ){
length = text.length() - oldText.length();
sb.replace(start, end, text);
int adjustedLength =
_doc.getTextTable().adjustForInsert(_textStart, length);
_doc.getCharacterTable().adjustForInsert(_charEnd - 1,
adjustedLength);
_doc.getParagraphTable().adjustForInsert(_parEnd - 1,
adjustedLength);
_doc.getSectionTable().adjustForInsert(_sectionEnd - 1,
adjustedLength);
adjustForInsert(length);
}else {
StringBuffer newText = new StringBuffer(text);
length = oldText.length()- text.length();
for ( int i = 0; i < length; ++i ){
newText.append(" ");
}
sb.replace(start, end, newText.toString());
}
}
------------------------------------------------------------------------
3. here is the method i use to do find and replace :
code:
------------------------------------------------------------------------
HWPFDocument doc;
public String replaceWord(String file, String searchThis, String
replaceWith) {
StringBuffer sb=new StringBuffer();
try
{
FileInputStream istream= new FileInputStream(file);
doc = new HWPFDocument(istream);
Range r = doc.getRange();
// WordExtractor extractor = new WordExtractor(doc);
String newText=regexReplace(r.text(),searchThis, replaceWith);
r.replaceWith(newText);
// doc.verifyAndBuildPOIFS(istream);
// File f= new File("c:\\temp.doc");
// f.delete();
FileOutputStream docOut =
new FileOutputStream
("c:\\temp.doc");
doc.write(docOut);
docOut.close();
}
catch (Throwable t)
{
t.printStackTrace();
}
return sb.toString();
}
private String regexReplace( String text, String searchThis,String
replaceWith){
Pattern p = Pattern.compile("(?i)"+searchThis);
Matcher m = p.matcher(text);
StringBuffer sb = new StringBuffer();
while (m.find()) {
m.appendReplacement(sb, replaceWith);
}
// m.appendTail(sb);
return (sb.toString());
}
------------------------------------------------------------------------
as i said the result document seems to write each paragraph (in original
doc) into a whole page ...
can some one help me fix the issue ?
many thanks.
