protected int parseExpression() {
char terminationChar = '}';
char nextTerminationChar = 0;
boolean startInExpression = true;
GroovyPageExpressionParser expressionParser =
new GroovyPageExpressionParser(
text, end1 - 1, terminationChar, nextTerminationChar, startInExpression);
int endpos = expressionParser.parse();
if (endpos != -1) {
end1 = endpos + 1;
int expressionEndState = HTML;
if (state == GTAG_EXPR) {
expressionEndState = GSTART_TAG;
}
return found(expressionEndState, nextTerminationChar == 0 ? 1 : 2);
}
throw new GrailsTagException("Unclosed GSP expression", pageName, getLineNumberForToken());
}
private void populateMapWithAttributes(Map<String, String> attrs, String attrTokens) {
attrTokens = attrTokens.trim();
int startPos = 0;
while (startPos < attrTokens.length()) {
// parse name (before '=' character)
int equalsignPos = attrTokens.indexOf('=', startPos);
if (equalsignPos == -1) {
throw new GrailsTagException(
"Expecting '=' after attribute name (" + attrTokens + ").",
pageName,
getCurrentOutputLineNumber());
}
String name = attrTokens.substring(startPos, equalsignPos).trim();
// parse value
startPos = equalsignPos + 1;
char ch = attrTokens.charAt(startPos++);
while (Character.isWhitespace(ch) && startPos < attrTokens.length()) {
ch = attrTokens.charAt(startPos++);
}
if (!(ch == '\'' || ch == '"')) {
throw new GrailsTagException(
"Attribute value must be quoted (" + attrTokens + ").",
pageName,
getCurrentOutputLineNumber());
}
char quoteChar = ch;
GroovyPageExpressionParser expressionParser =
new GroovyPageExpressionParser(attrTokens, startPos, quoteChar, (char) 0, false);
int endQuotepos = expressionParser.parse();
if (endQuotepos == -1) {
throw new GrailsTagException(
"Attribute value quote wasn't closed (" + attrTokens + ").",
pageName,
getCurrentOutputLineNumber());
}
String val = attrTokens.substring(startPos, endQuotepos);
if (val.startsWith("${") && val.endsWith("}") && !expressionParser.isContainsGstrings()) {
val = val.substring(2, val.length() - 1);
} else if (!(val.startsWith("[") && val.endsWith("]"))) {
if (val.indexOf('"') == -1) {
quoteChar = '"';
}
String quoteStr;
// use multiline groovy string if the value contains newlines
if (val.indexOf('\n') != -1 || val.indexOf('\r') != -1) {
if (quoteChar == '"') {
quoteStr = MULTILINE_GROOVY_STRING_DOUBLEQUOTES;
} else {
quoteStr = MULTILINE_GROOVY_STRING_SINGLEQUOTES;
}
} else {
quoteStr = String.valueOf(quoteChar);
}
val = quoteStr + val + quoteStr;
}
attrs.put("\"" + name + "\"", val);
startPos = endQuotepos + 1;
}
}
