private int findClosestIndexOf(String context, int oldIndex, String content) {
Matcher matcher = Pattern.compile(Pattern.quote(context)).matcher(content);
int index = 0;
while (matcher.find()) {
if (Math.abs(oldIndex - matcher.start()) < (Math.abs(oldIndex - index))) {
index = matcher.start();
}
}
return index;
}
private TextConstraint exactMatch(String primaryContent, TextConstraint originalConstraint)
throws NoMatchFoundException {
// find the text before the annotation
// int startPos = primaryContent.indexOf(this.beforeContext);
int startPos =
findClosestIndexOf(
this.beforeContext,
originalConstraint.getStartPos() - this.beforeContext.length(),
primaryContent);
startPos += this.beforeContext.length();
// find text after annotation
// int endPos = primaryContent.indexOf(this.afterContext);
int endPos =
findClosestIndexOf(this.afterContext, originalConstraint.getEndPos(), this.totalSelection);
if (endPos < 0 || startPos < 0) {
// search through the selected content
int positionTotal = 0;
if (this.beginSel.length() > 0 && this.endSel.length() > 0) {
int originalPosTotal =
(originalConstraint.getStartPos()
+ (originalConstraint.getEndPos() - this.endSel.length()));
// search beginning source selection, then end
// selection, respectively
int beginTotal =
findClosestIndexOf(this.beginSel, originalConstraint.getStartPos(), primaryContent);
int afterTotal =
findClosestIndexOf(
this.endSel,
(originalConstraint.getEndPos() - this.endSel.length()),
primaryContent);
positionTotal = beginTotal + afterTotal;
if (Math.abs(positionTotal - originalPosTotal) > 5) {
return null;
}
} else {
// search through total selection
positionTotal =
findClosestIndexOf(
this.totalSelection, originalConstraint.getStartPos(), primaryContent);
if (positionTotal < 0) return null;
}
}
return new TextConstraint(startPos, endPos);
}