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Escaping optimized

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TODO: we have to integrate this optimization in IDEA
This commit is contained in:
Andrey Breslav
2012-07-13 12:52:55 +04:00
parent 17169b1244
commit e182041eb9
1 changed files with 41 additions and 6 deletions
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compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/extAnnotations/CoreAnnotationsProvider.java
+41 -6
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@@ -17,7 +17,6 @@
package org.jetbrains.jet.lang.resolve.java.extAnnotations;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.util.JDOMUtil;
import com.intellij.openapi.util.io.StreamUtil;
@@ -249,11 +248,47 @@ public class CoreAnnotationsProvider extends ExternalAnnotationsProvider {
private static String escapeAttributes(@NotNull String invalidXml) {
// We assume that XML has single- and double-quote characters only for attribute values, therefore we don't any complex parsing,
// just split by ['"] regexp instead
String[] split = invalidXml.split("[\"\']");
assert split.length % 2 == 1;
for (int i = 1; i < split.length; i += 2) {
split[i] = split[i].replace("<", "&lt;").replace(">", "&gt;");
// For PERFORMANCE REASONS this is written by hand instead of using regular expressions
// This implementation turned out to be too slow:
// String[] split = invalidXml.split("[\"\']");
// assert split.length % 2 == 1;
// for (int i = 1; i < split.length; i += 2) {
// split[i] = split[i].replace("<", "&lt;").replace(">", "&gt;");
// }
// return StringUtil.join(split, "\"");
StringBuilder sb = new StringBuilder();
boolean inQuotes = false;
for (int i = 0; i < invalidXml.length(); i++) {
char c = invalidXml.charAt(i);
switch (c) {
case '\'':
case '\"':
inQuotes = !inQuotes;
sb.append('\"');
break;
case '<':
if (inQuotes) {
sb.append("&lt;");
}
else {
sb.append(c);
}
break;
case '>':
if (inQuotes) {
sb.append("&gt;");
}
else {
sb.append(c);
}
break;
default:
sb.append(c);
break;
}
}
return StringUtil.join(split, "\"");
return sb.toString();
}
}