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The XSLT and XQuery Processor
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2015 Saxonica Limited.
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package net.sf.saxon.style;
import net.sf.saxon.expr.Expression;
import net.sf.saxon.expr.Literal;
import net.sf.saxon.expr.StringLiteral;
import net.sf.saxon.expr.instruct.NumberInstruction;
import net.sf.saxon.expr.instruct.ValueOf;
import net.sf.saxon.expr.number.NumberFormatter;
import net.sf.saxon.expr.parser.RoleDiagnostic;
import net.sf.saxon.expr.parser.TypeChecker;
import net.sf.saxon.om.AttributeCollection;
import net.sf.saxon.pattern.Pattern;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.value.Int64Value;
import net.sf.saxon.value.SequenceType;
import net.sf.saxon.value.Whitespace;
/**
* An xsl:number element in the stylesheet.
*/
public class XSLNumber extends StyleElement {
private int level;
/*@Nullable*/ private Pattern count = null;
private Pattern from = null;
private Expression select = null;
private Expression value = null;
private Expression format = null;
private Expression groupSize = null;
private Expression groupSeparator = null;
private Expression letterValue = null;
private Expression lang = null;
private Expression ordinal = null;
private Expression startAt = null;
private NumberFormatter formatter = null;
private boolean hasVariablesInPatterns = false;
/**
* Determine whether this node is an instruction.
*
* @return true - it is an instruction
*/
public boolean isInstruction() {
return true;
}
public void prepareAttributes() throws XPathException {
AttributeCollection atts = getAttributeList();
String selectAtt = null;
String valueAtt = null;
String countAtt = null;
String fromAtt = null;
String levelAtt = null;
String formatAtt = null;
String gsizeAtt = null;
String gsepAtt = null;
String langAtt = null;
String letterValueAtt = null;
String ordinalAtt = null;
String startAtAtt = null;
for (int a = 0; a < atts.getLength(); a++) {
String f = atts.getQName(a);
if (f.equals("select")) {
selectAtt = atts.getValue(a);
select = makeExpression(selectAtt, a);
} else if (f.equals("value")) {
valueAtt = atts.getValue(a);
value = makeExpression(valueAtt, a);
} else if (f.equals("count")) {
countAtt = atts.getValue(a);
} else if (f.equals("from")) {
fromAtt = atts.getValue(a);
} else if (f.equals("level")) {
levelAtt = Whitespace.trim(atts.getValue(a));
} else if (f.equals("format")) {
formatAtt = atts.getValue(a);
format = makeAttributeValueTemplate(formatAtt, a);
} else if (f.equals("lang")) {
langAtt = atts.getValue(a);
lang = makeAttributeValueTemplate(langAtt, a);
} else if (f.equals("letter-value")) {
letterValueAtt = Whitespace.trim(atts.getValue(a));
letterValue = makeAttributeValueTemplate(letterValueAtt, a);
} else if (f.equals("grouping-size")) {
gsizeAtt = Whitespace.trim(atts.getValue(a));
} else if (f.equals("grouping-separator")) {
gsepAtt = atts.getValue(a);
} else if (f.equals("ordinal")) {
ordinalAtt = atts.getValue(a);
ordinal = makeAttributeValueTemplate(ordinalAtt, a);
} else if (f.equals("start-at")) {
startAtAtt = atts.getValue(a);
startAt = makeAttributeValueTemplate(startAtAtt, a);
} else {
checkUnknownAttribute(atts.getNodeName(a));
}
}
if (valueAtt != null) {
if (selectAtt != null) {
compileError("The select attribute and value attribute must not both be present", "XTSE0975");
}
if (countAtt != null) {
compileError("The count attribute and value attribute must not both be present", "XTSE0975");
}
if (fromAtt != null) {
compileError("The from attribute and value attribute must not both be present", "XTSE0975");
}
if (levelAtt != null) {
compileError("The level attribute and value attribute must not both be present", "XTSE0975");
}
}
if (countAtt != null) {
count = makePattern(countAtt, "count");
// the following test is a very crude way of testing if the pattern might
// contain variables, but it's good enough...
if (countAtt.indexOf('$') >= 0) {
hasVariablesInPatterns = true;
}
}
if (fromAtt != null) {
from = makePattern(fromAtt, "from");
if (fromAtt.indexOf('$') >= 0) {
hasVariablesInPatterns = true;
}
}
if (levelAtt == null) {
level = NumberInstruction.SINGLE;
} else if (levelAtt.equals("single")) {
level = NumberInstruction.SINGLE;
} else if (levelAtt.equals("multiple")) {
level = NumberInstruction.MULTI;
} else if (levelAtt.equals("any")) {
level = NumberInstruction.ANY;
} else {
invalidAttribute("level", "single|any|multiple");
}
if (level == NumberInstruction.SINGLE && from == null && count == null) {
level = NumberInstruction.SIMPLE;
}
if (formatAtt != null) {
if (format instanceof StringLiteral) {
formatter = new NumberFormatter();
formatter.prepare(((StringLiteral) format).getStringValue());
}
// else we'll need to allocate the formatter at run-time
} else {
formatter = new NumberFormatter();
formatter.prepare("1");
}
if (gsepAtt != null && gsizeAtt != null) {
// the spec says that if only one is specified, it is ignored
groupSize = makeAttributeValueTemplate(gsizeAtt, getAttributeList().getIndex("", "group-size"));
groupSeparator = makeAttributeValueTemplate(gsepAtt, getAttributeList().getIndex("", "group-separator"));
}
if (startAtAtt != null) {
if (getProcessorVersion() < 30) {
compileWarning("xsl:number/@start-at is ignored as XSLT 3.0 is not enabled", "XTSE0010");
startAt = Literal.makeLiteral(Int64Value.PLUS_ONE);
} else {
if (startAtAtt.indexOf('{') < 0 && !startAtAtt.matches("-?[0-9]+(\\s+-?[0-9]+)*")) {
compileErrorInAttribute("Invalid format for start-at attribute", "XTSE0020", "start-at");
}
}
} else {
startAt = Literal.makeLiteral(Int64Value.PLUS_ONE);
}
}
public void validate(ComponentDeclaration decl) throws XPathException {
checkEmpty();
select = typeCheck("select", select);
value = typeCheck("value", value);
format = typeCheck("format", format);
groupSize = typeCheck("group-size", groupSize);
groupSeparator = typeCheck("group-separator", groupSeparator);
letterValue = typeCheck("letter-value", letterValue);
ordinal = typeCheck("ordinal", ordinal);
lang = typeCheck("lang", lang);
from = typeCheck("from", from);
count = typeCheck("count", count);
startAt = typeCheck("start-at", startAt);
if (select != null) {
try {
RoleDiagnostic role =
new RoleDiagnostic(RoleDiagnostic.INSTRUCTION, "xsl:number/select", 0);
//role.setSourceLocator(new ExpressionLocation(this));
role.setErrorCode("XTTE1000");
select = TypeChecker.staticTypeCheck(select,
SequenceType.SINGLE_NODE,
false, role, makeExpressionVisitor());
} catch (XPathException err) {
compileError(err);
}
}
}
public Expression compile(Compilation exec, ComponentDeclaration decl) throws XPathException {
NumberInstruction expr = new NumberInstruction(
select,
level,
count,
from,
value,
format,
groupSize,
groupSeparator,
letterValue,
ordinal,
startAt,
lang,
formatter,
hasVariablesInPatterns,
xPath10ModeIsEnabled());
expr.setLocation(allocateLocation());
ValueOf inst = new ValueOf(expr, false, false);
inst.setLocation(allocateLocation());
inst.setIsNumberingInstruction();
return inst;
}
}
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