private void directJspTagLib(String text) {
text = text.substring(TAGLIB_DIRECTIVE.length() + 1, text.length());
Map<String, String> attrs = new LinkedHashMap<String, String>();
populateMapWithAttributes(attrs, text);
String prefix = attrs.get("\"prefix\"");
String uri = attrs.get("\"uri\"");
if (uri != null && prefix != null) {
final String namespace = prefix.substring(1, prefix.length() - 1);
if (!GroovyPage.DEFAULT_NAMESPACE.equals(namespace)) {
jspTags.put(namespace, uri.substring(1, uri.length() - 1));
} else {
LOG.error(
"You cannot override the default 'g' namespace with the directive <%@ taglib prefix=\"g\" %>. Please select another namespace.");
}
}
}
private void endTag() {
if (!finalPass) return;
String tagName = scan.getToken().trim();
String ns = scan.getNamespace();
if (tagMetaStack.isEmpty())
throw new GrailsTagException(
"Found closing Grails tag with no opening [" + tagName + "]",
pageName,
getCurrentOutputLineNumber());
TagMeta tm = tagMetaStack.pop();
String lastInStack = tm.name;
String lastNamespaceInStack = tm.namespace;
// if the tag name is blank then it has been closed by the start tag ie <tag />
if (GrailsStringUtils.isBlank(tagName)) {
tagName = lastInStack;
}
if (!lastInStack.equals(tagName) || !lastNamespaceInStack.equals(ns)) {
throw new GrailsTagException(
"Grails tag [" + lastNamespaceInStack + ":" + lastInStack + "] was not closed",
pageName,
getCurrentOutputLineNumber());
}
if (GroovyPage.DEFAULT_NAMESPACE.equals(ns) && tagRegistry.isSyntaxTag(tagName)) {
if (tm.instance instanceof GroovySyntaxTag) {
GroovySyntaxTag tag = (GroovySyntaxTag) tm.instance;
tag.doEndTag();
} else {
throw new GrailsTagException(
"Grails tag [" + tagName + "] was not closed", pageName, getCurrentOutputLineNumber());
}
} else {
int bodyTagIndex = -1;
if (!tm.emptyTag && !tm.bufferMode) {
bodyTagIndex = tagIndex;
out.println("})");
closureLevel--;
}
if (tm.bufferMode && tm.bufferPartNumber != -1) {
if (!bodyVarsDefined.contains(tm.tagIndex)) {
// out.print("def ");
bodyVarsDefined.add(tm.tagIndex);
}
out.println("createClosureForHtmlPart(" + tm.bufferPartNumber + ", " + tm.tagIndex + ")");
bodyTagIndex = tm.tagIndex;
tm.bufferMode = false;
}
if (jspTags.containsKey(ns)) {
String uri = jspTags.get(ns);
out.println("jspTag = getJspTag('" + uri + "', '" + tagName + "')");
out.println(
"if (!jspTag) throw new GrailsTagException('Unknown JSP tag "
+ ns
+ ":"
+ tagName
+ "')");
out.print("jspTag.doTag(out," + attrsVarsMapDefinition.get(tagIndex) + ",");
if (bodyTagIndex > -1) {
out.print("getBodyClosure(" + bodyTagIndex + ")");
} else {
out.print("null");
}
out.println(")");
} else {
if (tm.hasAttributes) {
out.println(
"invokeTag('"
+ tagName
+ "','"
+ ns
+ "',"
+ getCurrentOutputLineNumber()
+ ","
+ attrsVarsMapDefinition.get(tagIndex)
+ ","
+ bodyTagIndex
+ ")");
} else {
out.println(
"invokeTag('"
+ tagName
+ "','"
+ ns
+ "',"
+ getCurrentOutputLineNumber()
+ ",[:],"
+ bodyTagIndex
+ ")");
}
}
}
tm.bufferMode = false;
tagIndex--;
}
@SuppressWarnings({"unchecked", "rawtypes"})
private void startTag() {
if (!finalPass) return;
tagIndex++;
String text;
StringBuilder buf = new StringBuilder(scan.getToken());
String ns = scan.getNamespace();
boolean emptyTag = false;
state = scan.nextToken();
while (state != HTML && state != GEND_TAG && state != GEND_EMPTY_TAG && state != EOF) {
if (state == GTAG_EXPR) {
buf.append("${");
buf.append(scan.getToken().trim());
buf.append("}");
} else {
buf.append(scan.getToken());
}
state = scan.nextToken();
}
if (state == GEND_EMPTY_TAG) {
emptyTag = true;
}
doNextScan = false;
text = buf.toString();
String tagName;
Map attrs = new LinkedHashMap();
Matcher m = Pattern.compile("\\s").matcher(text);
if (m.find()) { // ignores carriage returns and new lines
tagName = text.substring(0, m.start());
if (state != EOF) {
String attrTokens = text.substring(m.start(), text.length());
populateMapWithAttributes(attrs, attrTokens);
}
} else {
tagName = text;
}
if (state == EOF) {
throw new GrailsTagException(
"Unexpected end of file encountered parsing Tag ["
+ tagName
+ "] for "
+ className
+ ". Are you missing a closing brace '}'?",
pageName,
getCurrentOutputLineNumber());
}
flushTagBuffering();
TagMeta tm = new TagMeta();
tm.name = tagName;
tm.namespace = ns;
tm.hasAttributes = !attrs.isEmpty();
tm.lineNumber = getCurrentOutputLineNumber();
tm.emptyTag = emptyTag;
tm.tagIndex = tagIndex;
tagMetaStack.push(tm);
if (GroovyPage.DEFAULT_NAMESPACE.equals(ns) && tagRegistry.isSyntaxTag(tagName)) {
if (tagContext == null) {
tagContext = new HashMap<Object, Object>();
tagContext.put(GroovyPage.OUT, out);
tagContext.put(GroovyPageParser.class, this);
}
GroovySyntaxTag tag = (GroovySyntaxTag) tagRegistry.newTag(tagName);
tag.init(tagContext);
tag.setAttributes(attrs);
if (tag.isKeepPrecedingWhiteSpace() && currentlyBufferingWhitespace) {
flushBufferedWhiteSpace();
} else if (!tag.isAllowPrecedingContent() && previousContentWasNonWhitespace) {
throw new GrailsTagException(
"Tag ["
+ tag.getName()
+ "] cannot have non-whitespace characters directly preceding it.",
pageName,
getCurrentOutputLineNumber());
} else {
// If tag does not specify buffering of WS, we swallow it here
clearBufferedWhiteSpace();
}
tag.doStartTag();
tm.instance = tag;
} else {
// Custom taglibs have to always flush the whitespace, there's no
// "allowPrecedingWhitespace" property on tags yet
flushBufferedWhiteSpace();
if (attrs.size() > 0) {
FastStringWriter buffer = new FastStringWriter();
buffer.print("[");
for (Iterator<?> i = attrs.keySet().iterator(); i.hasNext(); ) {
String name = (String) i.next();
String cleanedName = name;
if (name.startsWith("\"") && name.endsWith("\"")) {
cleanedName = "'" + name.substring(1, name.length() - 1) + "'";
}
buffer.print(cleanedName);
buffer.print(':');
buffer.print(getExpressionText(attrs.get(name).toString()));
if (i.hasNext()) {
buffer.print(',');
} else {
buffer.print("]");
}
}
attrsVarsMapDefinition.put(tagIndex, buffer.toString());
buffer.close();
}
if (!emptyTag) {
tm.bufferMode = true;
}
}
}