/**
* Creates a pattern from the given string using the default HeadFinder and BasicCategoryFunction.
* If you want to use a different HeadFinder or BasicCategoryFunction, use a {@link
* TregexPatternCompiler} object. Rather than throwing an exception when the string does not
* parse, simply returns null.
*
* @param tregex the pattern string
* @param verbose whether to log errors when the string doesn't parse
* @return a TregexPattern for the string, or null if the string does not parse.
*/
public static TregexPattern safeCompile(String tregex, boolean verbose) {
TregexPattern result = null;
try {
result = TregexPatternCompiler.defaultCompiler.compile(tregex);
} catch (TregexParseException ex) {
if (verbose) {
System.err.println("Could not parse " + tregex + ":");
ex.printStackTrace();
}
}
return result;
}
