From c82e3b3b2de0633317ec8fc85925e91422820597 Mon Sep 17 00:00:00 2001 From: "Benjamin J. Culkin" Date: Sun, 8 Oct 2017 22:39:59 -0300 Subject: Start splitting into maven modules --- .../bjc/utils/parserutils/delims/RegexOpener.java | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 base/src/main/java/bjc/utils/parserutils/delims/RegexOpener.java (limited to 'base/src/main/java/bjc/utils/parserutils/delims/RegexOpener.java') diff --git a/base/src/main/java/bjc/utils/parserutils/delims/RegexOpener.java b/base/src/main/java/bjc/utils/parserutils/delims/RegexOpener.java new file mode 100644 index 0000000..ee93b73 --- /dev/null +++ b/base/src/main/java/bjc/utils/parserutils/delims/RegexOpener.java @@ -0,0 +1,54 @@ +package bjc.utils.parserutils.delims; + +import java.util.function.Function; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +import bjc.utils.data.IPair; +import bjc.utils.data.Pair; + +/** + * A predicated opener for use with {@link RegexCloser} + * + * @author bjculkin + * + */ +public class RegexOpener implements Function> { + private final String name; + + private final Pattern patt; + + /** + * Create a new regex opener. + * + * @param groupName + * The name of the opened group. + * + * @param groupRegex + * The regex that matches the opener. + */ + public RegexOpener(final String groupName, final String groupRegex) { + name = groupName; + + patt = Pattern.compile(groupRegex); + } + + @Override + public IPair apply(final String str) { + final Matcher m = patt.matcher(str); + + if (m.matches()) { + final int numGroups = m.groupCount(); + + final String[] parms = new String[numGroups + 1]; + + for (int i = 0; i <= numGroups; i++) { + parms[i] = m.group(i); + } + + return new Pair<>(name, parms); + } + + return new Pair<>(null, null); + } +} -- cgit v1.2.3