private void pushNewTag(String tagName, int startLine, boolean isRemoveId, boolean ignoreBody) {
Tag tag = new Tag(tagName, startLine);
tag._component = !isRemoveId;
tag._removeTag = isRemoveId;
tag._ignoringBody = ignoreBody;
_ignoring = tag._ignoringBody;
tag._mustBalance = true;
_stack.add(tag);
}
private void startTag() throws TemplateParseException {
int cursorStart = _cursor;
int length = _templateData.length;
String tagName = null;
boolean endOfTag = false;
boolean emptyTag = false;
int startLine = _line;
ILocation startLocation = new Location(_resourceLocation, startLine);
tagBeginEvent(startLine, _cursor);
advance();
// Collect the element type
while (_cursor < length) {
char ch = _templateData[_cursor];
if (ch == '/' || ch == '>' || Character.isWhitespace(ch)) {
tagName = new String(_templateData, cursorStart + 1, _cursor - cursorStart - 1);
break;
}
advance();
}
String attributeName = null;
int attributeNameStart = -1;
int attributeValueStart = -1;
int state = WAIT_FOR_ATTRIBUTE_NAME;
char quoteChar = 0;
_attributes.clear();
// Collect each attribute
while (!endOfTag) {
if (_cursor >= length) {
String key =
(tagName == null)
? "TemplateParser.unclosed-unknown-tag"
: "TemplateParser.unclosed-tag";
templateParseProblem(
Tapestry.format(key, tagName, Integer.toString(startLine)),
startLocation,
startLine,
cursorStart);
}
char ch = _templateData[_cursor];
switch (state) {
case WAIT_FOR_ATTRIBUTE_NAME:
// Ignore whitespace before the next attribute name, while
// looking for the end of the current tag.
if (ch == '/') {
emptyTag = true;
advance();
break;
}
if (ch == '>') {
endOfTag = true;
break;
}
if (Character.isWhitespace(ch)) {
advance();
break;
}
// Found non-whitespace, assume its the attribute name.
// Note: could use a check here for non-alpha.
attributeNameStart = _cursor;
state = COLLECT_ATTRIBUTE_NAME;
advance();
break;
case COLLECT_ATTRIBUTE_NAME:
// Looking for end of attribute name.
if (ch == '=' || ch == '/' || ch == '>' || Character.isWhitespace(ch)) {
attributeName =
new String(_templateData, attributeNameStart, _cursor - attributeNameStart);
state = ADVANCE_PAST_EQUALS;
break;
}
// Part of the attribute name
advance();
break;
case ADVANCE_PAST_EQUALS:
// Looking for the '=' sign. May hit the end of the tag, or (for bare attributes),
// the next attribute name.
if (ch == '/' || ch == '>') {
// A bare attribute, which is not interesting to
// us.
state = WAIT_FOR_ATTRIBUTE_NAME;
break;
}
if (Character.isWhitespace(ch)) {
advance();
break;
}
if (ch == '=') {
state = WAIT_FOR_ATTRIBUTE_VALUE;
quoteChar = 0;
attributeValueStart = -1;
advance();
break;
}
// Otherwise, an HTML style "bare" attribute (such as <select multiple>).
// We aren't interested in those (we're just looking for the id or jwcid attribute).
state = WAIT_FOR_ATTRIBUTE_NAME;
break;
case WAIT_FOR_ATTRIBUTE_VALUE:
if (ch == '/' || ch == '>')
templateParseProblem(
Tapestry.format(
"TemplateParser.missing-attribute-value",
tagName,
Integer.toString(_line),
attributeName),
getCurrentLocation(),
_line,
_cursor);
// Ignore whitespace between '=' and the attribute value. Also, look
// for initial quote.
if (Character.isWhitespace(ch)) {
advance();
break;
}
if (ch == '\'' || ch == '"') {
quoteChar = ch;
state = COLLECT_QUOTED_VALUE;
advance();
attributeValueStart = _cursor;
attributeBeginEvent(attributeName, _line, attributeValueStart);
break;
}
// Not whitespace or quote, must be start of unquoted attribute.
state = COLLECT_UNQUOTED_VALUE;
attributeValueStart = _cursor;
attributeBeginEvent(attributeName, _line, attributeValueStart);
break;
case COLLECT_QUOTED_VALUE:
// Start collecting the quoted attribute value. Stop at the matching quote character,
// unless bare, in which case, stop at the next whitespace.
if (ch == quoteChar) {
String attributeValue =
new String(_templateData, attributeValueStart, _cursor - attributeValueStart);
attributeEndEvent(_cursor);
if (_attributes.containsKey(attributeName))
templateParseProblem(
Tapestry.format(
"TemplateParser.duplicate-tag-attribute",
tagName,
Integer.toString(_line),
attributeName),
getCurrentLocation(),
_line,
_cursor);
_attributes.put(attributeName, attributeValue);
// Advance over the quote.
advance();
state = WAIT_FOR_ATTRIBUTE_NAME;
break;
}
advance();
break;
case COLLECT_UNQUOTED_VALUE:
// An unquoted attribute value ends with whitespace
// or the end of the enclosing tag.
if (ch == '/' || ch == '>' || Character.isWhitespace(ch)) {
String attributeValue =
new String(_templateData, attributeValueStart, _cursor - attributeValueStart);
attributeEndEvent(_cursor);
if (_attributes.containsKey(attributeName))
templateParseProblem(
Tapestry.format(
"TemplateParser.duplicate-tag-attribute",
tagName,
Integer.toString(_line),
attributeName),
getCurrentLocation(),
_line,
_cursor);
_attributes.put(attributeName, attributeValue);
state = WAIT_FOR_ATTRIBUTE_NAME;
break;
}
advance();
break;
}
}
tagEndEvent(_cursor);
// Check for invisible localizations
String localizationKey = findValueCaselessly(LOCALIZATION_KEY_ATTRIBUTE_NAME, _attributes);
String jwcId = findValueCaselessly(JWCID_ATTRIBUTE_NAME, _attributes);
if (localizationKey != null && tagName.equalsIgnoreCase("span") && jwcId == null) {
if (_ignoring)
templateParseProblem(
Tapestry.format(
"TemplateParser.component-may-not-be-ignored",
tagName,
Integer.toString(startLine)),
startLocation,
startLine,
cursorStart);
// If the tag isn't empty, then create a Tag instance to ignore the
// body of the tag.
if (!emptyTag) {
Tag tag = new Tag(tagName, startLine);
tag._component = false;
tag._removeTag = true;
tag._ignoringBody = true;
tag._mustBalance = true;
_stack.add(tag);
// Start ignoring content until the close tag.
_ignoring = true;
} else {
// Cursor is at the closing carat, advance over it and any whitespace.
advance();
advanceOverWhitespace();
}
// End any open block.
addTextToken(cursorStart - 1);
boolean raw = checkBoolean(RAW_ATTRIBUTE_NAME, _attributes);
Map attributes =
filter(_attributes, new String[] {LOCALIZATION_KEY_ATTRIBUTE_NAME, RAW_ATTRIBUTE_NAME});
TemplateToken token =
_factory.createLocalizationToken(
tagName, localizationKey, raw, attributes, startLocation);
_tokens.add(token);
return;
}
if (jwcId != null) {
processComponentStart(tagName, jwcId, emptyTag, startLine, cursorStart, startLocation);
return;
}
// A static tag (not a tag without a jwcid attribute).
// We need to record this so that we can match close tags later.
if (!emptyTag) {
Tag tag = new Tag(tagName, startLine);
_stack.add(tag);
}
// If there wasn't an active block, then start one.
if (_blockStart < 0 && !_ignoring) _blockStart = cursorStart;
advance();
}