// Public //////////////////////////////////////////////////////////////////////////////
+ public static class CharToStringParser extends Parser<CharToken,String> {
+ public CharToStringParser(Union u) { super(u); }
+ public Topology<CharToken> top() { return new IntegerTopology<CharToken>(); }
+ public Forest<String> shiftedToken(CharToken ct) {
+ return Forest.create(ct.getLocation(), ct.result(), null, null, false, false);
+ }
+ }
+
public static class CharRange extends Atom<CharToken> {
private String esc(char c) { return StringUtil.escapify(c+"", "[]-~\\\"\'"); }
- public CharRange(Topology<CharToken> t) { super(t); }
+ private Topology<CharToken> t;
+ public CharRange(Topology<CharToken> t) { this.t = t; }
+ public Topology<CharToken> top() { return t; }
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append('[');
public static CharToken left(int row, int col) { return new CharToken((char)9998, 0, 0) { public String toString() { return "{"; } }; }
public static CharToken right(int row, int col) { return new CharToken((char)9999, 0, 0) { public String toString() { return "}"; } }; }
- public static final Atom leftBrace = new Atom(new IntegerTopology<CharToken>(9998)) { public String toString() { return "{"; } };
- public static final Atom rightBrace = new Atom(new IntegerTopology<CharToken>(9999)) { public String toString() { return "}"; } };
+ public static final Atom leftBrace = new CharRange(new IntegerTopology<CharToken>(9998)) { public String toString() { return "{"; } };
+ public static final Atom rightBrace = new CharRange(new IntegerTopology<CharToken>(9999)) { public String toString() { return "}"; } };
private static final Range.Set all = new Range.Set(new Range(0, Character.MAX_VALUE));
public static final Atom any = new CharRange(new IntegerTopology<CharToken>(all));
/** returns an element which exactly matches the string given */
public static Element string(String s) {
- if (s.length() == 0) return MetaGrammar.epsilon;
+ if (s.length() == 0) return Union.epsilon;
final String escapified = "\""+StringUtil.escapify(s, "\"\r\n\\")+"\"";
Element ret;
if (s.length() == 1) {