/**
* Invoke a regular expression (r) on a string (input) using substitutions (s) for a matching
* regex.
*
* @param r a regular expression
* @param s a Substitution
* @param input the string to do the replacement on
* @param options The options for the regular expression
* @return the replacement result
*/
protected String doReplace(RegularExpression r, Substitution s, String input, int options) {
String res = input;
Regexp regexp = r.getRegexp(getProject());
if (regexp.matches(input, options)) {
log("Found match; substituting", Project.MSG_DEBUG);
res = regexp.substitute(input, s.getExpression(getProject()), options);
}
return res;
}
/**
* Tests a regular expression against each line of text in a Resource.
*
* @param r the Resource to check.
* @return whether the Resource is selected or not
*/
public boolean isSelected(Resource r) {
String teststr = null;
BufferedReader in = null;
// throw BuildException on error
validate();
if (r.isDirectory()) {
return true;
}
if (myRegExp == null) {
myRegExp = new RegularExpression();
myRegExp.setPattern(userProvidedExpression);
myExpression = myRegExp.getRegexp(getProject());
}
try {
in = new BufferedReader(new InputStreamReader(r.getInputStream()));
} catch (Exception e) {
throw new BuildException("Could not get InputStream from " + r.toLongString(), e);
}
try {
teststr = in.readLine();
while (teststr != null) {
if (myExpression.matches(
teststr, RegexpUtil.asOptions(caseSensitive, multiLine, singleLine))) {
return true;
}
teststr = in.readLine();
}
return false;
} catch (IOException ioe) {
throw new BuildException("Could not read " + r.toLongString());
} finally {
try {
in.close();
} catch (Exception e) {
throw new BuildException("Could not close " + r.toLongString());
}
}
}