/**
* 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.*;
import org.rythmengine.internal.parser.ParserBase;
import org.rythmengine.utils.S;
import java.util.regex.Matcher;
public class ImportParser extends KeywordParserFactory {
private static final String R = "(\\n?[ \\t\\x0B\\f]*%s%s[\\s]+([a-zA-Z0-9_\\.*,[ \\t\\x0B\\f]*)]+);?\\n?).*";
public ImportParser() {
}
protected String patternStr() {
return R;
}
public IParser create(final IContext ctx) {
return new ParserBase(ctx) {
public Token go() {
String remain = remain();
String line;
Regex r = new Regex(String.format("\\n?[ \\t\\x0B\\f]*%s%s(\\([ \t\f]*\\))?[ \t\f]*((?@{}))[ \\t\\x0B\\f]*\\n?", a(), keyword()));
String matched;
if (r.search(remain)) {
matched = r.stringMatched();
String s = r.stringMatched(2);
s = S.strip(s, "{", "}");
step(matched.length());
line = s.replaceAll("[\\n\\r]+", ",");
} else {
Matcher m = ptn(dialect()).matcher(remain);
if (!m.matches()) return null;
String s = m.group(1);
step(s.length());
matched = s;
//String imports = s.replaceFirst(String.format("%s%s[\\s]+", a(), keyword()), "").replaceFirst("(;|\\r?\\n)+$", "");
line = m.group(2);
}
checkRestrictedClass(line);
/**
* We need to make sure import path added to template class
* to support call tag using import paths. That why we move
* the addImport statement here from Directive.call()
*/
String[] sa = line.split("[;, \\t\\x0B\\f]+");
CodeBuilder cb = builder();
boolean statik = false;
for (String imp : sa) {
if (S.isEmpty(imp)) continue;
if ("static".equals(imp)) statik = true;
else {
cb.addImport(statik ? "static " + imp : imp, ctx().currentLine() - 1);
statik = false;
}
}
boolean leadingLB = matched.startsWith("\n");
boolean afterLB = matched.endsWith("\n");
if (leadingLB) {
ctx.getCodeBuilder().addBuilder(new Token.StringToken("\n", ctx));
if (leadingLB ^ afterLB) {
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));
}
}
}
return Token.EMPTY_TOKEN;
}
};
}
@Override
public Keyword keyword() {
return Keyword.IMPORT;
}
}