/**
* Analyze a picture string into two sub-pictures.
*
* @param picture the picture as written (possibly two subpictures separated by a semicolon)
* @param dfs the decimal format symbols
* @return an array of two sub-pictures, the positive and the negative sub-pictures respectively.
* If there is only one sub-picture, the second one is null.
*/
private SubPicture[] getSubPictures(String picture, DecimalSymbols dfs) throws XPathException {
int[] picture4 = StringValue.expand(picture);
SubPicture[] pics = new SubPicture[2];
if (picture4.length == 0) {
XPathException err = new XPathException("format-number() picture is zero-length");
err.setErrorCode("XTDE1310");
throw err;
}
int sep = -1;
for (int c = 0; c < picture4.length; c++) {
if (picture4[c] == dfs.patternSeparator) {
if (c == 0) {
grumble("first subpicture is zero-length");
} else if (sep >= 0) {
grumble("more than one pattern separator");
} else if (sep == picture4.length - 1) {
grumble("second subpicture is zero-length");
}
sep = c;
}
}
if (sep < 0) {
pics[0] = new SubPicture(picture4, dfs);
pics[1] = null;
} else {
int[] pic0 = new int[sep];
System.arraycopy(picture4, 0, pic0, 0, sep);
int[] pic1 = new int[picture4.length - sep - 1];
System.arraycopy(picture4, sep + 1, pic1, 0, picture4.length - sep - 1);
pics[0] = new SubPicture(pic0, dfs);
pics[1] = new SubPicture(pic1, dfs);
}
return pics;
}
public void checkArguments(ExpressionVisitor visitor) throws XPathException {
StaticContext env = visitor.getStaticContext();
if (checked) return;
checked = true;
super.checkArguments(visitor);
if (argument[1] instanceof StringLiteral) {
// picture is known statically - optimize for this common case
picture = ((StringLiteral) argument[1]).getStringValue();
}
if (argument.length == 3) {
if (argument[2] instanceof StringLiteral) {
// common case, decimal format name is supplied as a string literal
String lexicalName = ((StringLiteral) argument[2]).getStringValue();
StructuredQName qName;
try {
qName =
StructuredQName.fromLexicalQName(
lexicalName,
false,
visitor.getConfiguration().getNameChecker(),
env.getNamespaceResolver());
} catch (XPathException e) {
XPathException se = new XPathException("Invalid decimal format name. " + e.getMessage());
se.setErrorCode("XTDE1280");
throw se;
}
DecimalFormatManager dfm =
((ExpressionContext) env).getXSLStylesheet().getDecimalFormatManager();
requireFixup = true;
dfm.registerUsage(qName, this);
// this causes a callback to the fixup() method, either now, or later if it's a forwards
// reference
} else {
// we need to save the namespace context
nsContext = env.getNamespaceResolver();
}
} else {
// two arguments only: it uses the default decimal format
if (env instanceof ExpressionContext) {
// this is XSLT
DecimalFormatManager dfm =
((ExpressionContext) env).getXSLStylesheet().getDecimalFormatManager();
dfm.registerUsage(DecimalFormatManager.DEFAULT_NAME, this);
// Note: if using the "default default", there will be no fixup call.
} else {
// using saxon:decimal-format in some other environment
}
}
}
