1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
|
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2011, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.xml
package parsing
import scala.io.Source
import scala.xml.dtd._
import Utility.Escapes.{ pairs => unescape }
/**
* An XML parser.
*
* Parses XML 1.0, invokes callback methods of a MarkupHandler
* and returns whatever the markup handler returns. Use
* <code>ConstructingParser</code> if you just want to parse XML to
* construct instances of <code>scala.xml.Node</code>.
*
* While XML elements are returned, DTD declarations - if handled - are
* collected using side-effects.
*
* @author Burak Emir
* @version 1.0
*/
trait MarkupParser extends MarkupParserCommon with TokenTests
{
self: MarkupParser with MarkupHandler =>
type PositionType = Int
type InputType = Source
type ElementType = NodeSeq
type AttributesType = (MetaData, NamespaceBinding)
type NamespaceType = NamespaceBinding
def truncatedError(msg: String): Nothing = throw FatalError(msg)
def errorNoEnd(tag: String) = throw FatalError("expected closing tag of " + tag)
def xHandleError(that: Char, msg: String) = reportSyntaxError(msg)
val input: Source
/** if true, does not remove surplus whitespace */
val preserveWS: Boolean
def externalSource(systemLiteral: String): Source
//
// variables, values
//
var curInput: Source = input
// See ticket #3720 for motivations.
private class WithLookAhead(underlying: Source) extends Source {
private val queue = collection.mutable.Queue[Char]()
def lookahead(): BufferedIterator[Char] = {
val iter = queue.iterator ++ new Iterator[Char] {
def hasNext = underlying.hasNext
def next() = { val x = underlying.next(); queue += x; x }
}
iter.buffered
}
val iter = new Iterator[Char] {
def hasNext = underlying.hasNext || !queue.isEmpty
def next() = if (!queue.isEmpty) queue.dequeue() else underlying.next()
}
}
def lookahead(): BufferedIterator[Char] = curInput match {
case curInputWLA:WithLookAhead => curInputWLA.lookahead()
case _ =>
val newInput = new WithLookAhead(curInput)
curInput = newInput
newInput.lookahead()
}
/** the handler of the markup, returns this */
private val handle: MarkupHandler = this
/** stack of inputs */
var inpStack: List[Source] = Nil
/** holds the position in the source file */
var pos: Int = _
/* used when reading external subset */
var extIndex = -1
/** holds temporary values of pos */
var tmppos: Int = _
/** holds the next character */
var ch: Char = _
/** character buffer, for names */
protected val cbuf = new StringBuilder()
var dtd: DTD = null
protected var doc: Document = null
var eof: Boolean = false
//
// methods
//
/** <? prolog ::= xml S ... ?>
*/
def xmlProcInstr(): MetaData = {
xToken("xml")
xSpace
val (md,scp) = xAttributes(TopScope)
if (scp != TopScope)
reportSyntaxError("no xmlns definitions here, please.");
xToken('?')
xToken('>')
md
}
/** Factored out common code.
*/
private def prologOrTextDecl(isProlog: Boolean): (Option[String], Option[String], Option[Boolean]) = {
var info_ver: Option[String] = None
var info_enc: Option[String] = None
var info_stdl: Option[Boolean] = None
var m = xmlProcInstr()
var n = 0
if (isProlog)
xSpaceOpt
m("version") match {
case null => ;
case Text("1.0") => info_ver = Some("1.0"); n += 1
case _ => reportSyntaxError("cannot deal with versions != 1.0")
}
m("encoding") match {
case null => ;
case Text(enc) =>
if (!isValidIANAEncoding(enc))
reportSyntaxError("\"" + enc + "\" is not a valid encoding")
else {
info_enc = Some(enc)
n += 1
}
}
if (isProlog) {
m("standalone") match {
case null => ;
case Text("yes") => info_stdl = Some(true); n += 1
case Text("no") => info_stdl = Some(false); n += 1
case _ => reportSyntaxError("either 'yes' or 'no' expected")
}
}
if (m.length - n != 0) {
val s = if (isProlog) "SDDecl? " else ""
reportSyntaxError("VersionInfo EncodingDecl? %sor '?>' expected!" format s)
}
(info_ver, info_enc, info_stdl)
}
/** <? prolog ::= xml S?
* // this is a bit more lenient than necessary...
*/
def prolog(): (Option[String], Option[String], Option[Boolean]) =
prologOrTextDecl(true)
/** prolog, but without standalone */
def textDecl(): (Option[String], Option[String]) =
prologOrTextDecl(false) match { case (x1, x2, _) => (x1, x2) }
/**
*[22] prolog ::= XMLDecl? Misc* (doctypedecl Misc*)?
*[23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
*[24] VersionInfo ::= S 'version' Eq ("'" VersionNum "'" | '"' VersionNum '"')
*[25] Eq ::= S? '=' S?
*[26] VersionNum ::= '1.0'
*[27] Misc ::= Comment | PI | S
*/
def document(): Document = {
doc = new Document()
this.dtd = null
var info_prolog: Tuple3[Option[String], Option[String], Option[Boolean]] = Tuple3(None, None, None);
if ('<' != ch) {
reportSyntaxError("< expected")
return null
}
nextch // is prolog ?
var children: NodeSeq = null
if ('?' == ch) {
nextch;
info_prolog = prolog()
doc.version = info_prolog._1
doc.encoding = info_prolog._2
doc.standAlone = info_prolog._3
children = content(TopScope) // DTD handled as side effect
}
else {
val ts = new NodeBuffer();
content1(TopScope, ts); // DTD handled as side effect
ts &+ content(TopScope);
children = NodeSeq.fromSeq(ts);
}
//Console.println("[MarkupParser::document] children now: "+children.toList);
var elemCount = 0;
var theNode: Node = null;
for (c <- children) c match {
case _:ProcInstr => ;
case _:Comment => ;
case _:EntityRef => // todo: fix entities, shouldn't be "special"
reportSyntaxError("no entity references allowed here");
case s:SpecialNode =>
if (s.toString().trim().length > 0) //non-empty text nodes not allowed
elemCount = elemCount + 2;
case m:Node =>
elemCount = elemCount + 1;
theNode = m;
}
if (1 != elemCount) {
reportSyntaxError("document must contain exactly one element")
Console.println(children.toList)
}
doc.children = children
doc.docElem = theNode
doc
}
/** append Unicode character to name buffer*/
protected def putChar(c: Char) = cbuf.append(c)
/** As the current code requires you to call nextch once manually
* after construction, this method formalizes that suboptimal reality.
*/
def initialize: this.type = {
nextch
this
}
def ch_returning_nextch = { val res = ch ; nextch ; res }
def mkProcInstr(position: Int, name: String, text: String): NodeSeq =
handle.procInstr(position, name, text)
def mkAttributes(name: String, pscope: NamespaceBinding) =
if (isNameStart (ch)) xAttributes(pscope)
else (Null, pscope)
/** this method assign the next character to ch and advances in input */
def nextch = {
if (curInput.hasNext) {
ch = curInput.next
pos = curInput.pos
} else {
val ilen = inpStack.length;
//Console.println(" ilen = "+ilen+ " extIndex = "+extIndex);
if ((ilen != extIndex) && (ilen > 0)) {
/** for external source, inpStack == Nil ! need notify of eof! */
pop()
} else {
eof = true
ch = 0.asInstanceOf[Char]
}
}
ch
}
/** parse attribute and create namespace scope, metadata
* [41] Attributes ::= { S Name Eq AttValue }
*/
def xAttributes(pscope:NamespaceBinding): (MetaData,NamespaceBinding) = {
var scope: NamespaceBinding = pscope
var aMap: MetaData = Null
while (isNameStart(ch)) {
val pos = this.pos
val qname = xName
val _ = xEQ
val value = xAttributeValue()
Utility.prefix(qname) match {
case Some("xmlns") =>
val prefix = qname.substring(6 /*xmlns:*/ , qname.length);
scope = new NamespaceBinding(prefix, value, scope);
case Some(prefix) =>
val key = qname.substring(prefix.length+1, qname.length);
aMap = new PrefixedAttribute(prefix, key, Text(value), aMap);
case _ =>
if( qname == "xmlns" )
scope = new NamespaceBinding(null, value, scope);
else
aMap = new UnprefixedAttribute(qname, Text(value), aMap);
}
if ((ch != '/') && (ch != '>') && ('?' != ch))
xSpace;
}
if(!aMap.wellformed(scope))
reportSyntaxError( "double attribute");
(aMap,scope)
}
/** entity value, terminated by either ' or ". value may not contain <.
* AttValue ::= `'` { _ } `'`
* | `"` { _ } `"`
*/
def xEntityValue(): String = {
val endch = ch
nextch
while (ch != endch && !eof) {
putChar(ch)
nextch
}
nextch
val str = cbuf.toString()
cbuf.length = 0
str
}
/** '<! CharData ::= [CDATA[ ( {char} - {char}"]]>"{char} ) ']]>'
*
* see [15]
*/
def xCharData: NodeSeq = {
xToken("[CDATA[")
def mkResult(pos: Int, s: String): NodeSeq = {
handle.text(pos, s)
PCData(s)
}
xTakeUntil(mkResult, () => pos, "]]>")
}
/** Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
*
* see [15]
*/
def xComment: NodeSeq = {
val sb: StringBuilder = new StringBuilder()
xToken("--")
while (true) {
if (ch == '-' && { sb.append(ch); nextch; ch == '-' }) {
sb.length = sb.length - 1
nextch
xToken('>')
return handle.comment(pos, sb.toString())
} else sb.append(ch)
nextch
}
throw FatalError("this cannot happen")
}
/* todo: move this into the NodeBuilder class */
def appendText(pos: Int, ts: NodeBuffer, txt: String): Unit = {
if (preserveWS)
ts &+ handle.text(pos, txt);
else
for (t <- TextBuffer.fromString(txt).toText) {
ts &+ handle.text(pos, t.text);
}
}
/** '<' content1 ::= ... */
def content1(pscope: NamespaceBinding, ts: NodeBuffer): Unit =
ch match {
case '!' =>
nextch
if ('[' == ch) // CDATA
ts &+ xCharData
else if ('D' == ch) // doctypedecl, parse DTD // @todo REMOVE HACK
parseDTD()
else // comment
ts &+ xComment
case '?' => // PI
nextch
ts &+ xProcInstr
case _ =>
ts &+ element1(pscope) // child
}
/** content1 ::= '<' content1 | '&' charref ... */
def content(pscope: NamespaceBinding): NodeSeq = {
var ts = new NodeBuffer
var exit = eof
// todo: optimize seq repr.
def done = new NodeSeq { val theSeq = ts.toList }
while (!exit) {
tmppos = pos
exit = eof
if (eof)
return done
ch match {
case '<' => // another tag
nextch match {
case '/' => exit = true // end tag
case _ => content1(pscope, ts)
}
// postcond: xEmbeddedBlock == false!
case '&' => // EntityRef or CharRef
nextch match {
case '#' => // CharacterRef
nextch
val theChar = handle.text(tmppos, xCharRef(() => ch, () => nextch))
xToken(';');
ts &+ theChar
case _ => // EntityRef
val n = xName
xToken(';')
if (unescape contains n) {
handle.entityRef(tmppos, n)
ts &+ unescape(n)
} else push(n)
}
case _ => // text content
appendText(tmppos, ts, xText);
}
}
done
} // content(NamespaceBinding)
/** externalID ::= SYSTEM S syslit
* PUBLIC S pubid S syslit
*/
def externalID(): ExternalID = ch match {
case 'S' =>
nextch
xToken("YSTEM")
xSpace
val sysID = systemLiteral()
new SystemID(sysID)
case 'P' =>
nextch; xToken("UBLIC")
xSpace
val pubID = pubidLiteral()
xSpace
val sysID = systemLiteral()
new PublicID(pubID, sysID)
}
/** parses document type declaration and assigns it to instance variable
* dtd.
*
* <! parseDTD ::= DOCTYPE name ... >
*/
def parseDTD(): Unit = { // dirty but fast
//Console.println("(DEBUG) parseDTD");
var extID: ExternalID = null
if (this.dtd ne null)
reportSyntaxError("unexpected character (DOCTYPE already defined");
xToken("DOCTYPE")
xSpace
val n = xName
xSpace
//external ID
if ('S' == ch || 'P' == ch) {
extID = externalID()
xSpaceOpt
}
/* parse external subset of DTD
*/
if ((null != extID) && isValidating) {
pushExternal(extID.systemId)
extIndex = inpStack.length
extSubset()
pop()
extIndex = -1
}
if ('[' == ch) { // internal subset
nextch
/* TODO */
intSubset()
// TODO: do the DTD parsing?? ?!?!?!?!!
xToken(']')
xSpaceOpt
}
xToken('>')
this.dtd = new DTD {
/*override var*/ externalID = extID
/*override val */decls = handle.decls.reverse
}
//this.dtd.initializeEntities();
if (doc ne null)
doc.dtd = this.dtd
handle.endDTD(n)
}
def element(pscope: NamespaceBinding): NodeSeq = {
xToken('<')
element1(pscope)
}
/** '<' element ::= xmlTag1 '>' { xmlExpr | '{' simpleExpr '}' } ETag
* | xmlTag1 '/' '>'
*/
def element1(pscope: NamespaceBinding): NodeSeq = {
val pos = this.pos
val (qname, (aMap, scope)) = xTag(pscope)
val (pre, local) = Utility.prefix(qname) match {
case Some(p) => (p, qname drop p.length+1)
case _ => (null, qname)
}
val ts = {
if (ch == '/') { // empty element
xToken("/>")
handle.elemStart(pos, pre, local, aMap, scope)
NodeSeq.Empty
}
else { // element with content
xToken('>')
handle.elemStart(pos, pre, local, aMap, scope)
val tmp = content(scope)
xEndTag(qname)
tmp
}
}
val res = handle.elem(pos, pre, local, aMap, scope, ts)
handle.elemEnd(pos, pre, local)
res
}
/** parse character data.
* precondition: xEmbeddedBlock == false (we are not in a scala block)
*/
def xText: String = {
var exit = false;
while (! exit) {
putChar(ch);
val opos = pos;
nextch;
exit = eof || ( ch == '<' ) || ( ch == '&' )
}
val str = cbuf.toString();
cbuf.length = 0;
str
}
/** attribute value, terminated by either ' or ". value may not contain <.
* AttValue ::= `'` { _ } `'`
* | `"` { _ } `"`
*/
def systemLiteral(): String = {
val endch = ch
if (ch != '\'' && ch != '"')
reportSyntaxError("quote ' or \" expected");
nextch
while (ch != endch && !eof) {
putChar(ch)
nextch
}
nextch
val str = cbuf.toString()
cbuf.length = 0
str
}
/* [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'" */
def pubidLiteral(): String = {
val endch = ch
if (ch!='\'' && ch != '"')
reportSyntaxError("quote ' or \" expected");
nextch
while (ch != endch && !eof) {
putChar(ch)
//Console.println("hello '"+ch+"'"+isPubIDChar(ch));
if (!isPubIDChar(ch))
reportSyntaxError("char '"+ch+"' is not allowed in public id");
nextch
}
nextch
val str = cbuf.toString()
cbuf.length = 0
str
}
//
// dtd parsing
//
def extSubset(): Unit = {
var textdecl:Tuple2[Option[String],Option[String]] = null;
if (ch=='<') {
nextch
if (ch=='?') {
nextch
textdecl = textDecl()
} else
markupDecl1()
}
while (!eof)
markupDecl()
}
def markupDecl1() = {
def doInclude() = {
xToken('['); while(']' != ch) markupDecl(); nextch // ']'
}
def doIgnore() = {
xToken('['); while(']' != ch) nextch; nextch; // ']'
}
if ('?' == ch) {
nextch
xProcInstr // simply ignore processing instructions!
} else {
xToken('!')
ch match {
case '-' =>
xComment // ignore comments
case 'E' =>
nextch
if ('L' == ch) {
nextch
elementDecl()
} else
entityDecl()
case 'A' =>
nextch
attrDecl()
case 'N' =>
nextch
notationDecl()
case '[' if inpStack.length >= extIndex =>
nextch
xSpaceOpt
ch match {
case '%' =>
nextch
val ent = xName
xToken(';')
xSpaceOpt
push(ent)
xSpaceOpt
val stmt = xName
xSpaceOpt
stmt match {
// parameter entity
case "INCLUDE" => doInclude()
case "IGNORE" => doIgnore()
}
case 'I' =>
nextch
ch match {
case 'G' =>
nextch
xToken("NORE")
xSpaceOpt
doIgnore()
case 'N' =>
nextch
xToken("NCLUDE")
doInclude()
}
}
xToken(']')
xToken('>')
case _ =>
curInput.reportError(pos, "unexpected character '"+ch+"', expected some markupdecl")
while (ch!='>')
nextch
}
}
}
def markupDecl(): Unit = ch match {
case '%' => // parameter entity reference
nextch
val ent = xName
xToken(';')
if (!isValidating)
handle.peReference(ent) // n-v: just create PE-reference
else
push(ent) // v: parse replacementText
//peReference
case '<' =>
nextch
markupDecl1()
case _ if isSpace(ch) =>
xSpace
case _ =>
reportSyntaxError("markupdecl: unexpected character '"+ch+"' #" + ch.toInt)
nextch
}
/** "rec-xml/#ExtSubset" pe references may not occur within markup declarations
*/
def intSubset() {
//Console.println("(DEBUG) intSubset()")
xSpace
while (']' != ch)
markupDecl()
}
/** <! element := ELEMENT
*/
def elementDecl() {
xToken("EMENT")
xSpace
val n = xName
xSpace
while ('>' != ch) {
//Console.println("["+ch+"]")
putChar(ch)
nextch
}
//Console.println("END["+ch+"]")
nextch
val cmstr = cbuf.toString()
cbuf.length = 0
handle.elemDecl(n, cmstr)
}
/** <! attlist := ATTLIST
*/
def attrDecl() = {
xToken("TTLIST")
xSpace
val n = xName
xSpace
var attList: List[AttrDecl] = Nil
// later: find the elemDecl for n
while ('>' != ch) {
val aname = xName
xSpace
// could be enumeration (foo,bar) parse this later :-/
while ('"' != ch && '\'' != ch && '#' != ch && '<' != ch) {
if (!isSpace(ch))
cbuf.append(ch);
nextch;
}
val atpe = cbuf.toString()
cbuf.length = 0
val defdecl: DefaultDecl = ch match {
case '\'' | '"' =>
DEFAULT(false, xAttributeValue())
case '#' =>
nextch
xName match {
case "FIXED" => xSpace ; DEFAULT(true, xAttributeValue())
case "IMPLIED" => IMPLIED
case "REQUIRED" => REQUIRED
}
case _ =>
null
}
xSpaceOpt
attList ::= AttrDecl(aname, atpe, defdecl)
cbuf.length = 0
}
nextch
handle.attListDecl(n, attList.reverse)
}
/** <! element := ELEMENT
*/
def entityDecl() = {
//Console.println("entityDecl()")
var isParameterEntity = false
var entdef: EntityDef = null
xToken("NTITY")
xSpace
if ('%' == ch) {
nextch
isParameterEntity = true
xSpace
}
val n = xName
xSpace
ch match {
case 'S' | 'P' => //sy
val extID = externalID()
if (isParameterEntity) {
xSpaceOpt
xToken('>')
handle.parameterEntityDecl(n, ExtDef(extID))
} else { // notation?
xSpace
if ('>' != ch) {
xToken("NDATA")
xSpace
val notat = xName
xSpaceOpt
xToken('>')
handle.unparsedEntityDecl(n, extID, notat)
} else {
nextch
handle.parsedEntityDecl(n, ExtDef(extID))
}
}
case '"' | '\'' =>
val av = xEntityValue()
xSpaceOpt
xToken('>')
if (isParameterEntity)
handle.parameterEntityDecl(n, IntDef(av))
else
handle.parsedEntityDecl(n, IntDef(av))
}
{}
} // entityDecl
/** 'N' notationDecl ::= "OTATION"
*/
def notationDecl() {
xToken("OTATION")
xSpace
val notat = xName
xSpace
val extID = if (ch == 'S') {
externalID();
}
else if (ch == 'P') {
/** PublicID (without system, only used in NOTATION) */
nextch
xToken("UBLIC")
xSpace
val pubID = pubidLiteral()
xSpaceOpt
val sysID = if (ch != '>')
systemLiteral()
else
null;
new PublicID(pubID, sysID);
} else {
reportSyntaxError("PUBLIC or SYSTEM expected");
sys.error("died parsing notationdecl")
}
xSpaceOpt
xToken('>')
handle.notationDecl(notat, extID)
}
def reportSyntaxError(pos: Int, str: String): Unit = curInput.reportError(pos, str)
def reportSyntaxError(str: String): Unit = reportSyntaxError(pos, str)
def reportValidationError(pos: Int, str: String): Unit = reportSyntaxError(pos, str)
def push(entityName: String) {
if (!eof)
inpStack = curInput :: inpStack
curInput = replacementText(entityName)
nextch
}
def pushExternal(systemId: String) {
if (!eof)
inpStack = curInput :: inpStack
curInput = externalSource(systemId)
nextch
}
def pop() {
curInput = inpStack.head
inpStack = inpStack.tail
ch = curInput.ch
pos = curInput.pos
eof = false // must be false, because of places where entity refs occur
}
}
|