/** * Compile a topLevel() method into the output class. This method is called from transform() to * handle all non-template top-level elements. Returns the signature of the topLevel() method. * * <p>Global variables/params and keys are first sorted to resolve dependencies between them. The * XSLT 1.0 spec does not allow a key to depend on a variable. However, for compatibility with * Xalan interpretive, that type of dependency is allowed. Note also that the buildKeys() method * is still generated as it is used by the LoadDocument class, but it no longer called from * transform(). */ private String compileTopLevel(ClassGenerator classGen) { final ConstantPoolGen cpg = classGen.getConstantPool(); final com.sun.org.apache.bcel.internal.generic.Type[] argTypes = { Util.getJCRefType(DOM_INTF_SIG), Util.getJCRefType(NODE_ITERATOR_SIG), Util.getJCRefType(TRANSLET_OUTPUT_SIG) }; final String[] argNames = {DOCUMENT_PNAME, ITERATOR_PNAME, TRANSLET_OUTPUT_PNAME}; final InstructionList il = new InstructionList(); final MethodGenerator toplevel = new MethodGenerator( ACC_PUBLIC, com.sun.org.apache.bcel.internal.generic.Type.VOID, argTypes, argNames, "topLevel", _className, il, classGen.getConstantPool()); toplevel.addException("com.sun.org.apache.xalan.internal.xsltc.TransletException"); // Define and initialize 'current' variable with the root node final LocalVariableGen current = toplevel.addLocalVariable( "current", com.sun.org.apache.bcel.internal.generic.Type.INT, null, null); final int setFilter = cpg.addInterfaceMethodref( DOM_INTF, "setFilter", "(Lcom/sun/org/apache/xalan/internal/xsltc/StripFilter;)V"); final int gitr = cpg.addInterfaceMethodref(DOM_INTF, "getIterator", "()" + NODE_ITERATOR_SIG); il.append(toplevel.loadDOM()); il.append(new INVOKEINTERFACE(gitr, 1)); il.append(toplevel.nextNode()); current.setStart(il.append(new ISTORE(current.getIndex()))); // Create a new list containing variables/params + keys Vector varDepElements = new Vector(_globals); Enumeration elements = elements(); while (elements.hasMoreElements()) { final Object element = elements.nextElement(); if (element instanceof Key) { varDepElements.add(element); } } // Determine a partial order for the variables/params and keys varDepElements = resolveDependencies(varDepElements); // Translate vars/params and keys in the right order final int count = varDepElements.size(); for (int i = 0; i < count; i++) { final TopLevelElement tle = (TopLevelElement) varDepElements.elementAt(i); tle.translate(classGen, toplevel); if (tle instanceof Key) { final Key key = (Key) tle; _keys.put(key.getName(), key); } } // Compile code for other top-level elements Vector whitespaceRules = new Vector(); elements = elements(); while (elements.hasMoreElements()) { final Object element = elements.nextElement(); // xsl:decimal-format if (element instanceof DecimalFormatting) { ((DecimalFormatting) element).translate(classGen, toplevel); } // xsl:strip/preserve-space else if (element instanceof Whitespace) { whitespaceRules.addAll(((Whitespace) element).getRules()); } } // Translate all whitespace strip/preserve rules if (whitespaceRules.size() > 0) { Whitespace.translateRules(whitespaceRules, classGen); } if (classGen.containsMethod(STRIP_SPACE, STRIP_SPACE_PARAMS) != null) { il.append(toplevel.loadDOM()); il.append(classGen.loadTranslet()); il.append(new INVOKEINTERFACE(setFilter, 2)); } il.append(RETURN); // Compute max locals + stack and add method to class classGen.addMethod(toplevel); return ("(" + DOM_INTF_SIG + NODE_ITERATOR_SIG + TRANSLET_OUTPUT_SIG + ")V"); }
/** * Factory method: create a dateTime value from a supplied string, in ISO 8601 format * * @param s a string in the lexical space of xs:dateTime * @return either a DateTimeValue representing the xs:dateTime supplied, or a ValidationFailure if * the lexical value was invalid */ public static ConversionResult makeDateTimeValue(CharSequence s) { // input must have format [-]yyyy-mm-ddThh:mm:ss[.fff*][([+|-]hh:mm | Z)] DateTimeValue dt = new DateTimeValue(); StringTokenizer tok = new StringTokenizer(Whitespace.trimWhitespace(s).toString(), "-:.+TZ", true); if (!tok.hasMoreElements()) { return badDate("too short", s); } String part = (String) tok.nextElement(); int era = +1; if ("+".equals(part)) { return badDate("Date must not start with '+' sign", s); } else if ("-".equals(part)) { era = -1; if (!tok.hasMoreElements()) { return badDate("No year after '-'", s); } part = (String) tok.nextElement(); } int value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric year component", s); } dt.year = value * era; if (part.length() < 4) { return badDate("Year is less than four digits", s); } if (part.length() > 4 && part.charAt(0) == '0') { return badDate("When year exceeds 4 digits, leading zeroes are not allowed", s); } if (dt.year == 0) { return badDate("Year zero is not allowed", s); } if (era < 0) { dt.year++; // internal representation allows a year zero. } if (!tok.hasMoreElements()) { return badDate("Too short", s); } if (!"-".equals(tok.nextElement())) { return badDate("Wrong delimiter after year", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } part = (String) tok.nextElement(); if (part.length() != 2) { return badDate("Month must be two digits", s); } value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric month component", s); } dt.month = (byte) value; if (dt.month < 1 || dt.month > 12) { return badDate("Month is out of range", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } if (!"-".equals(tok.nextElement())) { return badDate("Wrong delimiter after month", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } part = (String) tok.nextElement(); if (part.length() != 2) { return badDate("Day must be two digits", s); } value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric day component", s); } dt.day = (byte) value; if (dt.day < 1 || dt.day > 31) { return badDate("Day is out of range", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } if (!"T".equals(tok.nextElement())) { return badDate("Wrong delimiter after day", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } part = (String) tok.nextElement(); if (part.length() != 2) { return badDate("Hour must be two digits", s); } value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric hour component", s); } dt.hour = (byte) value; if (dt.hour > 24) { return badDate("Hour is out of range", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } if (!":".equals(tok.nextElement())) { return badDate("Wrong delimiter after hour", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } part = (String) tok.nextElement(); if (part.length() != 2) { return badDate("Minute must be two digits", s); } value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric minute component", s); } dt.minute = (byte) value; if (dt.minute > 59) { return badDate("Minute is out of range", s); } if (dt.hour == 24 && dt.minute != 0) { return badDate("If hour is 24, minute must be 00", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } if (!":".equals(tok.nextElement())) { return badDate("Wrong delimiter after minute", s); } if (!tok.hasMoreElements()) { return badDate("Too short", s); } part = (String) tok.nextElement(); if (part.length() != 2) { return badDate("Second must be two digits", s); } value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric second component", s); } dt.second = (byte) value; if (dt.second > 59) { return badDate("Second is out of range", s); } if (dt.hour == 24 && dt.second != 0) { return badDate("If hour is 24, second must be 00", s); } int tz = 0; int state = 0; while (tok.hasMoreElements()) { if (state == 9) { return badDate("Characters after the end", s); } String delim = (String) tok.nextElement(); if (".".equals(delim)) { if (state != 0) { return badDate("Decimal separator occurs twice", s); } if (!tok.hasMoreElements()) { return badDate("Decimal point must be followed by digits", s); } part = (String) tok.nextElement(); value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric fractional seconds component", s); } double fractionalSeconds = Double.parseDouble('.' + part); dt.microsecond = (int) (Math.round(fractionalSeconds * 1000000)); if (dt.hour == 24 && dt.microsecond != 0) { return badDate("If hour is 24, fractional seconds must be 0", s); } state = 1; } else if ("Z".equals(delim)) { if (state > 1) { return badDate("Z cannot occur here", s); } tz = 0; state = 9; // we've finished dt.setTimezoneInMinutes(0); } else if ("+".equals(delim) || "-".equals(delim)) { if (state > 1) { return badDate(delim + " cannot occur here", s); } state = 2; if (!tok.hasMoreElements()) { return badDate("Missing timezone", s); } part = (String) tok.nextElement(); if (part.length() != 2) { return badDate("Timezone hour must be two digits", s); } value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric timezone hour component", s); } tz = value; if (tz > 14) { return badDate("Timezone is out of range (-14:00 to +14:00)", s); } tz *= 60; if ("-".equals(delim)) { tz = -tz; } } else if (":".equals(delim)) { if (state != 2) { return badDate("Misplaced ':'", s); } state = 9; part = (String) tok.nextElement(); value = DurationValue.simpleInteger(part); if (value < 0) { return badDate("Non-numeric timezone minute component", s); } int tzminute = value; if (part.length() != 2) { return badDate("Timezone minute must be two digits", s); } if (tzminute > 59) { return badDate("Timezone minute is out of range", s); } if (tz < 0) { tzminute = -tzminute; } if (Math.abs(tz) == 14 * 60 && tzminute != 0) { return badDate("Timezone is out of range (-14:00 to +14:00)", s); } tz += tzminute; dt.setTimezoneInMinutes(tz); } else { return badDate("Timezone format is incorrect", s); } } if (state == 2 || state == 3) { return badDate("Timezone incomplete", s); } boolean midnight = false; if (dt.hour == 24) { dt.hour = 0; midnight = true; } // Check that this is a valid calendar date if (!DateValue.isValidDate(dt.year, dt.month, dt.day)) { return badDate("Non-existent date", s); } // Adjust midnight to 00:00:00 on the next day if (midnight) { DateValue t = DateValue.tomorrow(dt.year, dt.month, dt.day); dt.year = t.getYear(); dt.month = t.getMonth(); dt.day = t.getDay(); } dt.typeLabel = BuiltInAtomicType.DATE_TIME; return dt; }