changelog

A framework written in Java for implementing high-level and dynamic languages, compiling them into J

	Fixes bug reported 09-28 by Weiqi Gao <[e-mail]>.

2003-09-18  Per Bothner  <[e-mail]>

	* XQuery.java (<init>):  Add root function.
	* XQParser.java (parsePathExpr):  Handle non-relative path expressions.
	(parseRelativePathExpr):  Caller now does the parseStepExpr.
	* XQParser.java:  Add import of ClassType.

2003-09-14  Per Bothner  <[e-mail]>

	* XQParser.java (parseNodeTest):  Support other axes.

	* XQParser.java (funcNamedChildren, funcNamedDescendants,
	funcNamedDescendantsOrSelf):  Remove no-longer-used static fields.

2003-09-11  Per Bothner  <[e-mail]>

	* XQParser.java (skipSpaceOrComment):  Rename to skipSpace, taking
	an extra argument to indicate skipping past new line.
	(parseFLWRExpression):  Use renamed skipSpace.
	(skipSpace):  Use new skipSpace(true).
	(skipHSpace):  Replaced by skipSpace(false).
	(peekNonSpace, peekOperand, parseMaybePrimaryExpr, parse):
	Use new unary skipSpace.
	(parseSeparator):  Provide implementation.
	(parse):  Add missing parseSeparator calls.
	(parse):  Update to new xmlspace syntax.

2003-09-10  Per Bothner  <[e-mail]>

	* XQParser.java (warnOldVersion):  New static variable.
	(DEFINE_FUNCTION_TOKEN):  Rename to DEFINE_VARIABLE_TOKEN.
	(DECLARE_FUNCTION_TOKEN):  Rename to DECLARE_VARIABLE_TOKEN.
	(peekOperand):  Recognize <declare function> amd <declare variable>.
	Also recognize (and if warnOldVersion warn) the <define ...> syntax.
	(parse):  Update to handle new syntax as well as old syntax.

	* XQParser.java (DOT_VARNAME, POSITION_VARNAME, LAST_VARNAME):  Change
	values to names don't need to be mangled.

	* XQParser.java (pushStandardNamespaces):  Define 'local' prefix.

	* XQParser.java (parseNodeTest, parseRelativePathExpr):  Simplify
	using ApplyExp constructor that takes a method or Procedure..

	* XQParser.java (parseMaybePrimaryExpr):  Do syntaxError instead of
	throw on syntax confusion.

	* XQParser.java (parseFLWRExpression):  Re-organize methods so we
	can parse and handle 'at' clause.

2003-09-04  Per Bothner  <[e-mail]>

	* XQuery.java (parse, parseFile):  Change defaultCallConvention
	to new CALL_WITH_CONSUMER.

2003-08-03  Per Bothner  <[e-mail]>

	* XQParser.java (parseNodeTest):  Handle self:: and parent:: axies.
	(parseNodeTest):  Handle '.' and '..' abbreviated steps.

	* XQParser.java (focusDefined):  Remove field.  Instead, just check
	whether DOT_VARNAME is in scope.
	(parseRelativePathExpr, parseStepQualifiers,
	parseFunctionDefinition):  Don't set/unset focusDefined.
	(DOT_VARNAME, POSITION_VARNAME, LAST_VARNAME):  New constants.
	(parseNodeTest):  Look for DOT_VARNAME to see if context is defined.
	(parseCheckNodeTest):  Remove - just use parseNodeTest directly.
	(parseMaybePrimaryExpr):  Re-write position() and last() to
	RerefenceExps using POSITION_VARNAME and LAST_VARNAME.
	(parseNodeTest):  Use new xxxAxis classes.
	(parseRelativePathExpr):  Second expression is now a 3-argument
	LambdaExp.  Pass it DOT_VARNAME, POSITION_VARNAME, and LAST_VARNAME.
	Handle '//' now exactly as specified in standard.
	Comment out some optimizations for now.
	Use new RelativeStep class instead of ValuesMap.
	(parseStepQualifiers):  Pass axis parameter, since handling of
	qualifiers depends on type of axis (forward, reverse, or none).
	Second expression is also now a 3-argument LambdaExp.
	Pass it DOT_VARNAME, POSITION_VARNAME, and LAST_VARNAME.

	* XQuery.java (<init>):  Don't define position() - it is now
	re-written at parse time to POSITION_VARNAME.

2003-08-01  Per Bothner  <[e-mail]>

	* XQuery.java (XQUERY_FUNCTION_NAMESPACE):  Update URL.

	* XQParser.java (peekOperator):  Map 'union' to OP_UNION.
	(makeBinary):  Implement OP_UNION using UnionNodes class.

	* XQParserjava (makeBinary):  Return syntaxError if unimplemented op.
	Updates throws specifier to allow this.

	* XQParser.java (preserveBoundarySpace):  New field.
	(DECLARE_XMLSPACE_TOKEN):  New constant.
	(peekOperand):  Map 'declare' 'xmlspace' to DECLARE_XMLSPACE_TOKEN.
	(parseContent):  Skip boundary whitespace if appropriate.
	(parse):  Parse xmlspace declaration.

	* XQParser.java (parseFunctionDefinition):  Handle optional return
	type declaration using Convert.setCoercedReturnValue.

2003-07-26  Per Bothner  <[e-mail]>

	* XQuery.java (<init>):  Add distinct-nodes function.

2003-07-23  Terje Pedersen  <[e-mail]>

	* XQuery.java (<init>):  Define string-length, substring-before,
	substring-after, translate, string-pad, contains, starts-with,
	ends-with, string-join):  New standard functions.

2003-07-23  Per Bothner  <[e-mail]>

	* XQParser.java (OP_IS, OP_ISNOT, OP_GRTGRT, OP_LSSLSS):  New tokens.
	(OP_xxx):  Renumber, at least for now.
	(getRawToken):  Recognize '>>' as OP_GRTGRT and '<<' as OP_LSSLSS.
	(peekOperator):  Recognis 'is' and 'isnot'.
	(makeBinary):  Handle new tokens.

	* XQParser.java (parseMaybePrimaryExpr):  Intern string literal.

2003-07-17  Per Bothner  <[e-mail]>

	* XQParser.java (matchConstructorKeyword):  Fix bug reported
	07-17 by [e-mail].

2003-07-10  Per Bothner  <[e-mail]>

	* XQParser.java (matchConstructorKeyword):  Add extra unread/read
	pair, in case 'next' is the only character of a name.

2003-06-27  Per Bothner  <[e-mail]>

	* XQParser.java (XQParser):  Error handling improvements:  Better
	messages, plus special case for 'define QName ('.

2003-06-05  Per Bothner  <[e-mail]>

	* XQuery.java (Prompter.apply1):  Prettier prompt format.

2003-05-31  Per Bothner  <[e-mail]>

	* XQuery.java (getOutputConsumer):  Update return type.

2003-05-30  Per Bothner  <[e-mail]>

	* XQParser.java (DEFINE_VARIABLE_TOKEN): New token constant.
	(peekOperand):  Recognize 'define variable'.
	(parse):  Handle DEFINE_VARIABLE_TOKEN.

2003-05-13  Per Bothner  <[e-mail]>

	* XQParser.java:  Handle new KindType syntax of May '03 draft.
	(parseSimpleKindType, warnOldStyleKindTest. parseItemtype):  New.
	(parseElementType):  Handle new syntax.
	(parseDataType):  Handle new syntax.  Use OccurrenceType.

2003-05-10  Per Bothner  <[e-mail]>

	* XQParser.java (checkNext):  Moved to Lexer, and made public.

	* XQParser.java (getrawToken):  In string literals, handle
	character and entity references, and doubled delimters.
	(appendNamedEntity):  Removed StringBuffer parameter; write to
	tokenBuffer instead.
	(parseEntityOrCharRef):  New method.
	(parseContent):  Use tokenBuffer instead of a new StringBuffer.
	Handle double-quated attributes delimiters.  Use parseEntityOrCharRef.

2003-05-08  Per Bothner  <[e-mail]>

	* XQParser.java (skipComment):  Now handles (:new-style:) comments.
	(skipOldComment):  New method to handle {--old-style--} comments.
	(skipSpaceOrComment, getRawToken):  Handle either style of comment.
	(peekOperand): A NAME '(' followed by ':' is not an FNAME.
	* XQuery.java (Prompter.apply1):  Use new-style comment syntax.

	* XQParser.java (COLON_EQUAL_TOKEN):  New constant.
	(getRawToken):  If ':' is followed by '=' return COLON_EQUAL_TOKEN.
	If NCNAME ':' is followed by '=' return NCNAME_TOKEN, and back up.
	(parseFLWRExpression):  No need to check for NCNAME_COLON_TOKEN.

	* XQParser.java (parseEnclosedExpr):  More error-tolerant parsing.
	(parseIfExp):  Recover from missing 'then' or 'else'.
	(parseFLWRExpression):  Recover from ':=' / 'in' confusion.

	* XQuery.java (<init>):  Allow 'doc' as synonym for 'document'.
	New 'trace' method.

2003-04-21  Per Bothner  <[e-mail]>

	* XQuery.java (parse, parseFile):  Do ResolveNames.
	* XQParser.java (parseMaybePrimaryExpr):  Remove now-redundant
	function-name lookup; the rewriteToInvocation call appears redundant
	given following Inlinecalls.

2003-04-19  Per Bothner  <[e-mail]>

	* XQParser.java:  Update to use NameLookup.
	(parseStepQualifiers):  Defer NameLookup's push after addDeclaration.
	(parseFunctionDefinition):  Explicitly push declarations.

2003-04-18  Per Bothner  <[e-mail]>

	* XQParser.java (mark, reset):  New methods.
	(matchConstructorKeyword):  Now handles context dependency correctly,
	parsing ahead using mark and reset if needed.
	(parseMaybePrimaryExpr):  Let matchConstructorKeyword check context.

2003-03-29  Per Bothner  <[e-mail]>

	* XQParser.java (interpreter):  New field.
	* XQuery.java (getLexer):  Set XQParser's interpreter field.

	* XQuery.java (<init>):  Define lower-case, upper-case, substring.

	* XQuery.java (getTypeFor):  Handle type "string".
	* XQParser.java (parseDataType):  Use getTypeFor.

2003-03-15  Per Bothner  <[e-mail]>

	* XQParser.java (parseElementConstructor):  The default namespace
	for an attribute is "", not null.

	* XQParser.java (parseNameSpec):  Don't bother passing the
	defaultNamespaceUri to parseNameTest as it isn't used.

2003-03-04  Per Bothner  <[e-mail]>

	* XQParser.java (<init>):  New function node-name.

	* XQParser.java (matchConstructorKeyword):  New helper method.
	(parseMaybePrimaryExpr):  Implement computed constructors.

2003-03-02  Per Bothner  <[e-mail]>

	* XQuery.java (<init>):  BaseUri moved to gnu.kawa.functions.

2003-02-26  Per Bothner  <[e-mail]>

	* XQuery.java (<init>):  Explicitly specify field names for
	iterator-items and list-items.

2003-02-20  Per Bothner  <[e-mail]>

	* XQParser.java (parseMaybePrimaryExpr):  Servlet handling of $request
	and $response even if Compilation.generateServletDefault isn't set.

2003-02-13  Per Bothner  <[e-mail]>

	* XQuery.java (<init>):  Define base-uri function.

2003-02-11  Per Bothner  <[e-mail]>

	* XQuery.java (getInstance): Move save/restore of current Environment
	from here ...
	(<init>):  .. to here.
	(registerEnvironment):  Add call to Environment.setCurrent.

2003-01-12  Per Bothner  <[e-mail]>

	* XQuery.java (Prompter.apply1): Always emit readState character.
	* XQParser.java (pushNesting, popNesting):  New methods.
	(getRawRoken):  Push/pop nesting around string literal.
	(parseBinaryExpr):  Push/pop nesting around binary operator.
	(parseEnclosedExpr, parseTypeSwitch, parseMaybePrimaryExpr,
	parseIfExpr, parseFLWRExpression, parse):  Call pushNesting/popNesting.
	(parseElementConstructor):  Remove increment/decrement of nesting here.
	(syntaxError):  Read port's readState.

	* XQParser.java (syntaxError):  New overload takes paramter indicating
	number of columns to subtract from current position.
	(tokenWidth):  Return number of chars taken by curToken,
	(syntaxError):  Call tokenWidth.

	* XQParser.java (getRawRoken): Use syntaxError rather than error
	on seeing unrecognized character.

	* XQParser.java (parseMaybePrimaryExpr):  Do setProcedureName
	on function name in call.

	* XQParser,java (parseExprSequence):  Take new rightToken parameter
	so we can emit error on un-matched ')'.

	* XQParser.java (pushStandardNamespaces):  New method.
	(<init>(InPort)):  Call <init>(InPort,SourceMessages).
	(<init>(InPort,SourceMessage):  Call pushStandardNamespaces.

	* XQParser.java (parseOptionalTypeDeclaration):  New method.
	(parseDataType):  Make ClassType if unrecognized type name.
	(parseFunctionDefinition):  Call parseOptionalTypeDeclaration.

	* XQParser.java (parseFLWRExpression):  Remove unused sc local.

2002-11-23  Per Bothner  <[e-mail]>

	* XQuery.java (<init>):  Declare iterator-items and list-items.

2002-11-20  Per Bothner  <[e-mail]>

	* XQparser.java (parseMaybePrimaryExpr):  Check if function names
	a method invocation.

	* XQuery.java (<init>):  Recover from missing servlet classes.

2002-11-16  Per Bothner  <[e-mail]>

	* XQParser.java (parseFunctionDefinition):  Parse QName function name.

	* XQParser.java, XQuery.java:  Use gnu.mapping.Symbol instead of
	gnu.xml.QName.

	* XQuery.java (XQUERY_FUNCTION_NAMESPACE):  New constant.
	* XQParser.java (defaultFunctionNamespace):  New field.
	(defaultNamespace):  Rename field to defaultElementNamespace.

2002-11-10  Per Bothner  <[e-mail]>

	* XQParser.java (focusDefined):  New field.
	(parseCheckNodeTest):  New method, checks focusDefined.
	(parseStepExpr, parseMaybePrimaryExpr):  Call parseCheckNodeTest.
	(parseFunctionDefinition):  Clear and restore focusDefined.
	(parseRelativePathExpr, parseStepQualifiers):  Set focusDefined.

2002-11-05  Per Bothner  <[e-mail]>

	* XQuery.java (parseFile): Take and use new 'immediate' parameter.

2002-10-22  Per Bothner  <[e-mail]>

	* XQParser.java (DEFINE_TOKEN):  Remove constant.
	(DECLARE_NAMESPACE_TOKEN, DEFAULT_ELEMENT_TOKEN,
	DEFAULT_FUNCTION_TOKEN, DEFINE_FUNCTION_TOKEN):  New constants.
	(lookingAt):  New helper method to handle double-lexeme tokens.
	(peekOperand):  Use lookingAt.
	(parse):  Handle new tokens - and updated syntax.
	Warn about old syntax.

2002-07-28  Per Bothner  <[e-mail]>

	* XQParser.java (parseDataType):  Handle 'text' and 'node'