/**
* Copyright (C) 2013-2016 The Rythm Engine project
* for LICENSE and other details see:
* https://github.com/rythmengine/rythmengine
*/
package org.rythmengine.internal.parser.build_in;
import com.stevesoft.pat.Regex;
import org.rythmengine.internal.IContext;
import org.rythmengine.internal.IParser;
import org.rythmengine.internal.Keyword;
import org.rythmengine.internal.Token;
import org.rythmengine.internal.parser.BlockCodeToken;
import org.rythmengine.internal.parser.ParserBase;
import org.rythmengine.utils.S;
/**
* Parse @escape("JS") {...}
*/
public class EscapeParser extends KeywordParserFactory {
@Override
public Keyword keyword() {
return Keyword.ESCAPE;
}
public IParser create(final IContext ctx) {
return new ParserBase(ctx) {
public Token go() {
Regex r = reg(dialect());
if (!r.search(remain())) return null;
final String matched = r.stringMatched();
if (matched.startsWith("\n") || matched.endsWith("\n")) {
ctx.getCodeBuilder().addBuilder(new Token.StringToken("\n", ctx));
Regex r0 = new Regex("\\n([ \\t\\x0B\\f]*).*");
if (r0.search(matched)) {
String blank = r0.stringMatched(1);
if (blank.length() > 0) {
ctx.getCodeBuilder().addBuilder(new Token.StringToken(blank, ctx));
}
}
} else {
Regex r0 = new Regex("([ \\t\\x0B\\f]*).*");
if (r0.search(matched)) {
String blank = r0.stringMatched(1);
if (blank.length() > 0) {
ctx.getCodeBuilder().addBuilder(new Token.StringToken(blank, ctx));
}
}
}
step(matched.length());
String s = r.stringMatched(1);
s = S.stripBrace(s);
if (S.empty(s)) {
s = "\"\"";
}
/*
s = S.stripBraceAndQuotation(s);
if (S.isEmpty(s)) s = "HTML";
else if ("JavaScript".equalsIgnoreCase(s)) s = "JS";
else s = s.toUpperCase();
if (Arrays.binarySearch(Escape.stringValues(), s) < 0) {
raiseParseException("Error parsing @escape statement. Escape parameter expected to be one of %s, found: %s", Arrays.asList(Escape.stringValues()), s);
}
*/
s = String.format("__ctx.pushEscape(org.rythmengine.utils.Escape.valueOfIgnoreCase(this, %s));", s);
return new BlockCodeToken(s, ctx()) {
@Override
public void openBlock() {
}
@Override
public String closeBlock() {
return "__ctx.popEscape();";
}
};
}
};
}
@Override
protected String patternStr() {
return "^\\n?[ \\t\\x0B\\f]*%s%s\\s*((?@()))[\\s]*\\{?[ \\t\\x0B\\f]*\\n?";
}
}