private void html() {
if (!finalPass) return;
LOG.debug("parse: html");
String text = scan.getToken();
if (text.length() == 0) {
return;
}
// If we detect it is all whitespace, we need to keep it for later
// If it is not whitespace, we need to flush any whitespace we do have
boolean contentIsWhitespace = !Pattern.compile("\\S").matcher(text).find();
if (!contentIsWhitespace && currentlyBufferingWhitespace) {
flushBufferedWhiteSpace();
} else {
currentlyBufferingWhitespace = contentIsWhitespace;
}
// We need to know if the last content output was not whitespace, for tag safety checks
previousContentWasNonWhitespace = !contentIsWhitespace;
if (currentlyBufferingWhitespace) {
whitespaceBuffer.append(text);
} else {
appendHtmlPart(text);
}
}
private void scriptletExpr() {
if (!finalPass) {
return;
}
LOG.debug("parse: expr");
String text = scan.getToken().trim();
out.printlnToResponse(text);
}
private void script(boolean gsp) {
flushTagBuffering();
if (!finalPass) return;
LOG.debug("parse: script");
out.println();
write(scan.getToken().trim(), gsp);
out.println();
out.println();
}
private void declare(boolean gsp) {
if (finalPass) {
return;
}
LOG.debug("parse: declare");
out.println();
write(scan.getToken().trim(), gsp);
out.println();
out.println();
}
private void expr() {
if (!finalPass) return;
LOG.debug("parse: expr");
String text = scan.getToken().trim();
text = getExpressionText(text);
if (text != null && text.length() > 2 && text.startsWith("(") && text.endsWith(")")) {
out.printlnToResponse(
GroovyPage.EXPRESSION_OUT_STATEMENT, text.substring(1, text.length() - 1));
} else {
out.printlnToResponse(GroovyPage.EXPRESSION_OUT_STATEMENT, text);
}
}
private void direct() {
if (finalPass) {
return;
}
LOG.debug("parse: direct");
String text = scan.getToken();
text = text.trim();
if (text.startsWith(TAGLIB_DIRECTIVE)) {
directJspTagLib(text);
} else {
directPage(text);
}
}
public void generateGsp(Writer target, boolean precompileMode) {
this.precompileMode = precompileMode;
out = new GSPWriter(target, this);
if (packageName != null && packageName.length() > 0) {
out.println("package " + packageName);
out.println();
}
page();
finalPass = true;
scan.reset();
previousContentWasNonWhitespace = false;
currentlyBufferingWhitespace = false;
page();
out.close();
scan = null;
}
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--;
}
private void page() {
LOG.debug("parse: page");
if (finalPass) {
out.println();
if (pluginAnnotation != null) {
out.println(pluginAnnotation);
}
out.print("class ");
out.print(className);
out.println(" extends GroovyPage {");
out.println(
"public String getGroovyPageFileName() { \"" + pageName.replaceAll("\\\\", "/") + "\" }");
out.println("public Object run() {");
/*
out.println("def params = binding.params");
out.println("def request = binding.request");
out.println("def flash = binding.flash");
out.println("def response = binding.response");
*/
out.println("Writer " + GroovyPage.OUT + " = getOut()");
out.println("Writer " + GroovyPage.EXPRESSION_OUT + " = getExpressionOut()");
// out.println("JspTagLib jspTag");
if (sitemeshPreprocessMode) {
out.println("registerSitemeshPreprocessMode()");
}
}
loop:
for (; ; ) {
if (doNextScan) {
state = scan.nextToken();
} else {
doNextScan = true;
}
// Flush any buffered whitespace if there's not a possibility of more whitespace
// or a new tag which will handle flushing as necessary
if ((state != GSTART_TAG) && (state != HTML)) {
flushBufferedWhiteSpace();
previousContentWasNonWhitespace = false; // well, we don't know
}
switch (state) {
case EOF:
break loop;
case HTML:
html();
break;
case JEXPR:
scriptletExpr();
break;
case JSCRIPT:
script(false);
break;
case JDIRECT:
direct();
break;
case JDECLAR:
declare(false);
break;
case GEXPR:
expr();
break;
case GSCRIPT:
script(true);
break;
case GDIRECT:
direct();
break;
case GDECLAR:
declare(true);
break;
case GSTART_TAG:
startTag();
break;
case GEND_EMPTY_TAG:
case GEND_TAG:
endTag();
break;
}
}
if (finalPass) {
if (!tagMetaStack.isEmpty()) {
throw new GrailsTagException(
"Grails tags were not closed! [" + tagMetaStack + "] in GSP " + pageName + "",
pageName,
getCurrentOutputLineNumber());
}
out.println("}");
out.println("public static final Map " + CONSTANT_NAME_JSP_TAGS + " = new HashMap()");
if (jspTags != null && jspTags.size() > 0) {
out.println("static {");
for (Map.Entry<String, String> entry : jspTags.entrySet()) {
out.print("\t" + CONSTANT_NAME_JSP_TAGS + ".put('");
out.print(escapeGroovy(entry.getKey()));
out.print("','");
out.print(escapeGroovy(entry.getValue()));
out.println("')");
}
out.println("}");
}
out.println("protected void init() {");
out.println("\tthis.jspTags = " + CONSTANT_NAME_JSP_TAGS);
out.println("}");
out.println(
"public static final String "
+ CONSTANT_NAME_CONTENT_TYPE
+ " = '"
+ escapeGroovy(contentType)
+ "'");
out.println(
"public static final long " + CONSTANT_NAME_LAST_MODIFIED + " = " + lastModified + "L");
out.println(
"public static final String "
+ CONSTANT_NAME_EXPRESSION_CODEC
+ " = '"
+ escapeGroovy(expressionCodecDirectiveValue)
+ "'");
out.println(
"public static final String "
+ CONSTANT_NAME_STATIC_CODEC
+ " = '"
+ escapeGroovy(staticCodecDirectiveValue)
+ "'");
out.println(
"public static final String "
+ CONSTANT_NAME_OUT_CODEC
+ " = '"
+ escapeGroovy(outCodecDirectiveValue)
+ "'");
out.println(
"public static final String "
+ CONSTANT_NAME_TAGLIB_CODEC
+ " = '"
+ escapeGroovy(taglibCodecDirectiveValue)
+ "'");
out.println("}");
if (shouldAddLineNumbers()) {
addLineNumbers();
}
} else {
for (int i = 0; i < DEFAULT_IMPORTS.length; i++) {
out.print("import ");
out.println(DEFAULT_IMPORTS[i]);
}
}
}
public int getCurrentOutputLineNumber() {
return scan.getLineNumberForToken();
}
@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;
}
}
}
