XMLNode.cpp revision a2ef5c0d4fb863c0382e77ae00f986a019b11cbe 
1//
2// Copyright 2006 The Android Open Source Project
3//
4// Build resource files from raw assets.
5//
6
7#include "XMLNode.h"
8#include "ResourceTable.h"
9#include "pseudolocalize.h"
10
11#include <utils/ByteOrder.h>
12#include <errno.h>
13#include <string.h>
14
15#ifndef HAVE_MS_C_RUNTIME
16#define O_BINARY 0
17#endif
18
19#define NOISY(x) //x
20#define NOISY_PARSE(x) //x
21
22const char* const RESOURCES_ROOT_NAMESPACE = "http://schemas.android.com/apk/res/";
23const char* const RESOURCES_ANDROID_NAMESPACE = "http://schemas.android.com/apk/res/android";
24const char* const RESOURCES_AUTO_PACKAGE_NAMESPACE = "http://schemas.android.com/apk/res-auto";
25const char* const RESOURCES_ROOT_PRV_NAMESPACE = "http://schemas.android.com/apk/prv/res/";
26
27const char* const XLIFF_XMLNS = "urn:oasis:names:tc:xliff:document:1.2";
28const char* const ALLOWED_XLIFF_ELEMENTS[] = {
29        "bpt",
30        "ept",
31        "it",
32        "ph",
33        "g",
34        "bx",
35        "ex",
36        "x"
37    };
38
39bool isWhitespace(const char16_t* str)
40{
41    while (*str != 0 && *str < 128 && isspace(*str)) {
42        str++;
43    }
44    return *str == 0;
45}
46
47static const String16 RESOURCES_PREFIX(RESOURCES_ROOT_NAMESPACE);
48static const String16 RESOURCES_PREFIX_AUTO_PACKAGE(RESOURCES_AUTO_PACKAGE_NAMESPACE);
49static const String16 RESOURCES_PRV_PREFIX(RESOURCES_ROOT_PRV_NAMESPACE);
50static const String16 RESOURCES_TOOLS_NAMESPACE("http://schemas.android.com/tools");
51
52String16 getNamespaceResourcePackage(String16 appPackage, String16 namespaceUri, bool* outIsPublic)
53{
54    //printf("%s starts with %s?\n", String8(namespaceUri).string(),
55    //       String8(RESOURCES_PREFIX).string());
56    size_t prefixSize;
57    bool isPublic = true;
58    if(namespaceUri.startsWith(RESOURCES_PREFIX_AUTO_PACKAGE)) {
59        NOISY(printf("Using default application package: %s -> %s\n", String8(namespaceUri).string(), String8(appPackage).string()));
60        isPublic = true;
61        return appPackage;
62    } else if (namespaceUri.startsWith(RESOURCES_PREFIX)) {
63        prefixSize = RESOURCES_PREFIX.size();
64    } else if (namespaceUri.startsWith(RESOURCES_PRV_PREFIX)) {
65        isPublic = false;
66        prefixSize = RESOURCES_PRV_PREFIX.size();
67    } else {
68        if (outIsPublic) *outIsPublic = isPublic; // = true
69        return String16();
70    }
71
72    //printf("YES!\n");
73    //printf("namespace: %s\n", String8(String16(namespaceUri, namespaceUri.size()-prefixSize, prefixSize)).string());
74    if (outIsPublic) *outIsPublic = isPublic;
75    return String16(namespaceUri, namespaceUri.size()-prefixSize, prefixSize);
76}
77
78status_t hasSubstitutionErrors(const char* fileName,
79                               ResXMLTree* inXml,
80                               String16 str16)
81{
82    const char16_t* str = str16.string();
83    const char16_t* p = str;
84    const char16_t* end = str + str16.size();
85
86    bool nonpositional = false;
87    int argCount = 0;
88
89    while (p < end) {
90        /*
91         * Look for the start of a Java-style substitution sequence.
92         */
93        if (*p == '%' && p + 1 < end) {
94            p++;
95
96            // A literal percent sign represented by %%
97            if (*p == '%') {
98                p++;
99                continue;
100            }
101
102            argCount++;
103
104            if (*p >= '0' && *p <= '9') {
105                do {
106                    p++;
107                } while (*p >= '0' && *p <= '9');
108                if (*p != '$') {
109                    // This must be a size specification instead of position.
110                    nonpositional = true;
111                }
112            } else if (*p == '<') {
113                // Reusing last argument; bad idea since it can be re-arranged.
114                nonpositional = true;
115                p++;
116
117                // Optionally '$' can be specified at the end.
118                if (p < end && *p == '$') {
119                    p++;
120                }
121            } else {
122                nonpositional = true;
123            }
124
125            // Ignore flags and widths
126            while (p < end && (*p == '-' ||
127                    *p == '#' ||
128                    *p == '+' ||
129                    *p == ' ' ||
130                    *p == ',' ||
131                    *p == '(' ||
132                    (*p >= '0' && *p <= '9'))) {
133                p++;
134            }
135
136            /*
137             * This is a shortcut to detect strings that are going to Time.format()
138             * instead of String.format()
139             *
140             * Comparison of String.format() and Time.format() args:
141             *
142             * String: ABC E GH  ST X abcdefgh  nost x
143             *   Time:    DEFGHKMS W Za  d   hkm  s w yz
144             *
145             * Therefore we know it's definitely Time if we have:
146             *     DFKMWZkmwyz
147             */
148            if (p < end) {
149                switch (*p) {
150                case 'D':
151                case 'F':
152                case 'K':
153                case 'M':
154                case 'W':
155                case 'Z':
156                case 'k':
157                case 'm':
158                case 'w':
159                case 'y':
160                case 'z':
161                    return NO_ERROR;
162                }
163            }
164        }
165
166        p++;
167    }
168
169    /*
170     * If we have more than one substitution in this string and any of them
171     * are not in positional form, give the user an error.
172     */
173    if (argCount > 1 && nonpositional) {
174        SourcePos(String8(fileName), inXml->getLineNumber()).error(
175                "Multiple substitutions specified in non-positional format; "
176                "did you mean to add the formatted=\"false\" attribute?\n");
177        return NOT_ENOUGH_DATA;
178    }
179
180    return NO_ERROR;
181}
182
183status_t parseStyledString(Bundle* bundle,
184                           const char* fileName,
185                           ResXMLTree* inXml,
186                           const String16& endTag,
187                           String16* outString,
188                           Vector<StringPool::entry_style_span>* outSpans,
189                           bool isFormatted,
190                           PseudolocalizationMethod pseudolocalize)
191{
192    Vector<StringPool::entry_style_span> spanStack;
193    String16 curString;
194    String16 rawString;
195    const char* errorMsg;
196    int xliffDepth = 0;
197    bool firstTime = true;
198
199    size_t len;
200    ResXMLTree::event_code_t code;
201    // Bracketing if pseudolocalization accented method specified.
202    if (pseudolocalize == PSEUDO_ACCENTED) {
203        curString.append(String16(String8("[")));
204    }
205    while ((code=inXml->next()) != ResXMLTree::END_DOCUMENT && code != ResXMLTree::BAD_DOCUMENT) {
206        if (code == ResXMLTree::TEXT) {
207            String16 text(inXml->getText(&len));
208            if (firstTime && text.size() > 0) {
209                firstTime = false;
210                if (text.string()[0] == '@') {
211                    // If this is a resource reference, don't do the pseudoloc.
212                    pseudolocalize = NO_PSEUDOLOCALIZATION;
213                }
214            }
215            if (xliffDepth == 0 && pseudolocalize > 0) {
216                String16 pseudo;
217                if (pseudolocalize == PSEUDO_ACCENTED) {
218                    pseudo = pseudolocalize_string(text);
219                } else if (pseudolocalize == PSEUDO_BIDI) {
220                    pseudo = pseudobidi_string(text);
221                } else {
222                    pseudo = text;
223                }
224                curString.append(pseudo);
225            } else {
226                if (isFormatted && hasSubstitutionErrors(fileName, inXml, text) != NO_ERROR) {
227                    return UNKNOWN_ERROR;
228                } else {
229                    curString.append(text);
230                }
231            }
232        } else if (code == ResXMLTree::START_TAG) {
233            const String16 element16(inXml->getElementName(&len));
234            const String8 element8(element16);
235
236            size_t nslen;
237            const uint16_t* ns = inXml->getElementNamespace(&nslen);
238            if (ns == NULL) {
239                ns = (const uint16_t*)"\0\0";
240                nslen = 0;
241            }
242            const String8 nspace(String16(ns, nslen));
243            if (nspace == XLIFF_XMLNS) {
244                const int N = sizeof(ALLOWED_XLIFF_ELEMENTS)/sizeof(ALLOWED_XLIFF_ELEMENTS[0]);
245                for (int i=0; i<N; i++) {
246                    if (element8 == ALLOWED_XLIFF_ELEMENTS[i]) {
247                        xliffDepth++;
248                        // in this case, treat it like it was just text, in other words, do nothing
249                        // here and silently drop this element
250                        goto moveon;
251                    }
252                }
253                {
254                    SourcePos(String8(fileName), inXml->getLineNumber()).error(
255                            "Found unsupported XLIFF tag <%s>\n",
256                            element8.string());
257                    return UNKNOWN_ERROR;
258                }
259moveon:
260                continue;
261            }
262
263            if (outSpans == NULL) {
264                SourcePos(String8(fileName), inXml->getLineNumber()).error(
265                        "Found style tag <%s> where styles are not allowed\n", element8.string());
266                return UNKNOWN_ERROR;
267            }
268
269            if (!ResTable::collectString(outString, curString.string(),
270                                         curString.size(), false, &errorMsg, true)) {
271                SourcePos(String8(fileName), inXml->getLineNumber()).error("%s (in %s)\n",
272                        errorMsg, String8(curString).string());
273                return UNKNOWN_ERROR;
274            }
275            rawString.append(curString);
276            curString = String16();
277
278            StringPool::entry_style_span span;
279            span.name = element16;
280            for (size_t ai=0; ai<inXml->getAttributeCount(); ai++) {
281                span.name.append(String16(";"));
282                const char16_t* str = inXml->getAttributeName(ai, &len);
283                span.name.append(str, len);
284                span.name.append(String16("="));
285                str = inXml->getAttributeStringValue(ai, &len);
286                span.name.append(str, len);
287            }
288            //printf("Span: %s\n", String8(span.name).string());
289            span.span.firstChar = span.span.lastChar = outString->size();
290            spanStack.push(span);
291
292        } else if (code == ResXMLTree::END_TAG) {
293            size_t nslen;
294            const uint16_t* ns = inXml->getElementNamespace(&nslen);
295            if (ns == NULL) {
296                ns = (const uint16_t*)"\0\0";
297                nslen = 0;
298            }
299            const String8 nspace(String16(ns, nslen));
300            if (nspace == XLIFF_XMLNS) {
301                xliffDepth--;
302                continue;
303            }
304            if (!ResTable::collectString(outString, curString.string(),
305                                         curString.size(), false, &errorMsg, true)) {
306                SourcePos(String8(fileName), inXml->getLineNumber()).error("%s (in %s)\n",
307                        errorMsg, String8(curString).string());
308                return UNKNOWN_ERROR;
309            }
310            rawString.append(curString);
311            curString = String16();
312
313            if (spanStack.size() == 0) {
314                if (strcmp16(inXml->getElementName(&len), endTag.string()) != 0) {
315                    SourcePos(String8(fileName), inXml->getLineNumber()).error(
316                            "Found tag %s where <%s> close is expected\n",
317                            String8(inXml->getElementName(&len)).string(),
318                            String8(endTag).string());
319                    return UNKNOWN_ERROR;
320                }
321                break;
322            }
323            StringPool::entry_style_span span = spanStack.top();
324            String16 spanTag;
325            ssize_t semi = span.name.findFirst(';');
326            if (semi >= 0) {
327                spanTag.setTo(span.name.string(), semi);
328            } else {
329                spanTag.setTo(span.name);
330            }
331            if (strcmp16(inXml->getElementName(&len), spanTag.string()) != 0) {
332                SourcePos(String8(fileName), inXml->getLineNumber()).error(
333                        "Found close tag %s where close tag %s is expected\n",
334                        String8(inXml->getElementName(&len)).string(),
335                        String8(spanTag).string());
336                return UNKNOWN_ERROR;
337            }
338            bool empty = true;
339            if (outString->size() > 0) {
340                span.span.lastChar = outString->size()-1;
341                if (span.span.lastChar >= span.span.firstChar) {
342                    empty = false;
343                    outSpans->add(span);
344                }
345            }
346            spanStack.pop();
347
348            /*
349             * This warning seems to be just an irritation to most people,
350             * since it is typically introduced by translators who then never
351             * see the warning.
352             */
353            if (0 && empty) {
354                fprintf(stderr, "%s:%d: warning: empty '%s' span found in text '%s'\n",
355                        fileName, inXml->getLineNumber(),
356                        String8(spanTag).string(), String8(*outString).string());
357
358            }
359        } else if (code == ResXMLTree::START_NAMESPACE) {
360            // nothing
361        }
362    }
363
364    // Bracketing if pseudolocalization accented method specified.
365    if (pseudolocalize == PSEUDO_ACCENTED) {
366        const char16_t* str = outString->string();
367        const char16_t* p = str;
368        const char16_t* e = p + outString->size();
369        int words_cnt = 0;
370        while (p < e) {
371            if (isspace(*p)) {
372                words_cnt++;
373            }
374            p++;
375        }
376        unsigned int length = words_cnt > 3 ? outString->size() :
377            outString->size() / 2;
378        curString.append(String16(String8(" ")));
379        curString.append(pseudo_generate_expansion(length));
380        curString.append(String16(String8("]")));
381    }
382
383    if (code == ResXMLTree::BAD_DOCUMENT) {
384            SourcePos(String8(fileName), inXml->getLineNumber()).error(
385                    "Error parsing XML\n");
386    }
387
388    if (outSpans != NULL && outSpans->size() > 0) {
389        if (curString.size() > 0) {
390            if (!ResTable::collectString(outString, curString.string(),
391                                         curString.size(), false, &errorMsg, true)) {
392                SourcePos(String8(fileName), inXml->getLineNumber()).error(
393                        "%s (in %s)\n",
394                        errorMsg, String8(curString).string());
395                return UNKNOWN_ERROR;
396            }
397        }
398    } else {
399        // There is no style information, so string processing will happen
400        // later as part of the overall type conversion.  Return to the
401        // client the raw unprocessed text.
402        rawString.append(curString);
403        outString->setTo(rawString);
404    }
405
406    return NO_ERROR;
407}
408
409struct namespace_entry {
410    String8 prefix;
411    String8 uri;
412};
413
414static String8 make_prefix(int depth)
415{
416    String8 prefix;
417    int i;
418    for (i=0; i<depth; i++) {
419        prefix.append("  ");
420    }
421    return prefix;
422}
423
424static String8 build_namespace(const Vector<namespace_entry>& namespaces,
425        const uint16_t* ns)
426{
427    String8 str;
428    if (ns != NULL) {
429        str = String8(ns);
430        const size_t N = namespaces.size();
431        for (size_t i=0; i<N; i++) {
432            const namespace_entry& ne = namespaces.itemAt(i);
433            if (ne.uri == str) {
434                str = ne.prefix;
435                break;
436            }
437        }
438        str.append(":");
439    }
440    return str;
441}
442
443void printXMLBlock(ResXMLTree* block)
444{
445    block->restart();
446
447    Vector<namespace_entry> namespaces;
448
449    ResXMLTree::event_code_t code;
450    int depth = 0;
451    while ((code=block->next()) != ResXMLTree::END_DOCUMENT && code != ResXMLTree::BAD_DOCUMENT) {
452        String8 prefix = make_prefix(depth);
453        int i;
454        if (code == ResXMLTree::START_TAG) {
455            size_t len;
456            const uint16_t* ns16 = block->getElementNamespace(&len);
457            String8 elemNs = build_namespace(namespaces, ns16);
458            const uint16_t* com16 = block->getComment(&len);
459            if (com16) {
460                printf("%s <!-- %s -->\n", prefix.string(), String8(com16).string());
461            }
462            printf("%sE: %s%s (line=%d)\n", prefix.string(), elemNs.string(),
463                   String8(block->getElementName(&len)).string(),
464                   block->getLineNumber());
465            int N = block->getAttributeCount();
466            depth++;
467            prefix = make_prefix(depth);
468            for (i=0; i<N; i++) {
469                uint32_t res = block->getAttributeNameResID(i);
470                ns16 = block->getAttributeNamespace(i, &len);
471                String8 ns = build_namespace(namespaces, ns16);
472                String8 name(block->getAttributeName(i, &len));
473                printf("%sA: ", prefix.string());
474                if (res) {
475                    printf("%s%s(0x%08x)", ns.string(), name.string(), res);
476                } else {
477                    printf("%s%s", ns.string(), name.string());
478                }
479                Res_value value;
480                block->getAttributeValue(i, &value);
481                if (value.dataType == Res_value::TYPE_NULL) {
482                    printf("=(null)");
483                } else if (value.dataType == Res_value::TYPE_REFERENCE) {
484                    printf("=@0x%x", (int)value.data);
485                } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
486                    printf("=?0x%x", (int)value.data);
487                } else if (value.dataType == Res_value::TYPE_STRING) {
488                    printf("=\"%s\"",
489                            ResTable::normalizeForOutput(String8(block->getAttributeStringValue(i,
490                                        &len)).string()).string());
491                } else {
492                    printf("=(type 0x%x)0x%x", (int)value.dataType, (int)value.data);
493                }
494                const char16_t* val = block->getAttributeStringValue(i, &len);
495                if (val != NULL) {
496                    printf(" (Raw: \"%s\")", ResTable::normalizeForOutput(String8(val).string()).
497                            string());
498                }
499                printf("\n");
500            }
501        } else if (code == ResXMLTree::END_TAG) {
502            depth--;
503        } else if (code == ResXMLTree::START_NAMESPACE) {
504            namespace_entry ns;
505            size_t len;
506            const uint16_t* prefix16 = block->getNamespacePrefix(&len);
507            if (prefix16) {
508                ns.prefix = String8(prefix16);
509            } else {
510                ns.prefix = "<DEF>";
511            }
512            ns.uri = String8(block->getNamespaceUri(&len));
513            namespaces.push(ns);
514            printf("%sN: %s=%s\n", prefix.string(), ns.prefix.string(),
515                    ns.uri.string());
516            depth++;
517        } else if (code == ResXMLTree::END_NAMESPACE) {
518            depth--;
519            const namespace_entry& ns = namespaces.top();
520            size_t len;
521            const uint16_t* prefix16 = block->getNamespacePrefix(&len);
522            String8 pr;
523            if (prefix16) {
524                pr = String8(prefix16);
525            } else {
526                pr = "<DEF>";
527            }
528            if (ns.prefix != pr) {
529                prefix = make_prefix(depth);
530                printf("%s*** BAD END NS PREFIX: found=%s, expected=%s\n",
531                        prefix.string(), pr.string(), ns.prefix.string());
532            }
533            String8 uri = String8(block->getNamespaceUri(&len));
534            if (ns.uri != uri) {
535                prefix = make_prefix(depth);
536                printf("%s *** BAD END NS URI: found=%s, expected=%s\n",
537                        prefix.string(), uri.string(), ns.uri.string());
538            }
539            namespaces.pop();
540        } else if (code == ResXMLTree::TEXT) {
541            size_t len;
542            printf("%sC: \"%s\"\n", prefix.string(),
543                    ResTable::normalizeForOutput(String8(block->getText(&len)).string()).string());
544        }
545    }
546
547    block->restart();
548}
549
550status_t parseXMLResource(const sp<AaptFile>& file, ResXMLTree* outTree,
551                          bool stripAll, bool keepComments,
552                          const char** cDataTags)
553{
554    sp<XMLNode> root = XMLNode::parse(file);
555    if (root == NULL) {
556        return UNKNOWN_ERROR;
557    }
558    root->removeWhitespace(stripAll, cDataTags);
559
560    NOISY(printf("Input XML from %s:\n", (const char*)file->getPrintableSource()));
561    NOISY(root->print());
562    sp<AaptFile> rsc = new AaptFile(String8(), AaptGroupEntry(), String8());
563    status_t err = root->flatten(rsc, !keepComments, false);
564    if (err != NO_ERROR) {
565        return err;
566    }
567    err = outTree->setTo(rsc->getData(), rsc->getSize(), true);
568    if (err != NO_ERROR) {
569        return err;
570    }
571
572    NOISY(printf("Output XML:\n"));
573    NOISY(printXMLBlock(outTree));
574
575    return NO_ERROR;
576}
577
578sp<XMLNode> XMLNode::parse(const sp<AaptFile>& file)
579{
580    char buf[16384];
581    int fd = open(file->getSourceFile().string(), O_RDONLY | O_BINARY);
582    if (fd < 0) {
583        SourcePos(file->getSourceFile(), -1).error("Unable to open file for read: %s",
584                strerror(errno));
585        return NULL;
586    }
587
588    XML_Parser parser = XML_ParserCreateNS(NULL, 1);
589    ParseState state;
590    state.filename = file->getPrintableSource();
591    state.parser = parser;
592    XML_SetUserData(parser, &state);
593    XML_SetElementHandler(parser, startElement, endElement);
594    XML_SetNamespaceDeclHandler(parser, startNamespace, endNamespace);
595    XML_SetCharacterDataHandler(parser, characterData);
596    XML_SetCommentHandler(parser, commentData);
597
598    ssize_t len;
599    bool done;
600    do {
601        len = read(fd, buf, sizeof(buf));
602        done = len < (ssize_t)sizeof(buf);
603        if (len < 0) {
604            SourcePos(file->getSourceFile(), -1).error("Error reading file: %s\n", strerror(errno));
605            close(fd);
606            return NULL;
607        }
608        if (XML_Parse(parser, buf, len, done) == XML_STATUS_ERROR) {
609            SourcePos(file->getSourceFile(), (int)XML_GetCurrentLineNumber(parser)).error(
610                    "Error parsing XML: %s\n", XML_ErrorString(XML_GetErrorCode(parser)));
611            close(fd);
612            return NULL;
613        }
614    } while (!done);
615
616    XML_ParserFree(parser);
617    if (state.root == NULL) {
618        SourcePos(file->getSourceFile(), -1).error("No XML data generated when parsing");
619    }
620    close(fd);
621    return state.root;
622}
623
624XMLNode::XMLNode(const String8& filename, const String16& s1, const String16& s2, bool isNamespace)
625    : mNextAttributeIndex(0x80000000)
626    , mFilename(filename)
627    , mStartLineNumber(0)
628    , mEndLineNumber(0)
629    , mUTF8(false)
630{
631    if (isNamespace) {
632        mNamespacePrefix = s1;
633        mNamespaceUri = s2;
634    } else {
635        mNamespaceUri = s1;
636        mElementName = s2;
637    }
638}
639
640XMLNode::XMLNode(const String8& filename)
641    : mFilename(filename)
642{
643    memset(&mCharsValue, 0, sizeof(mCharsValue));
644}
645
646XMLNode::type XMLNode::getType() const
647{
648    if (mElementName.size() != 0) {
649        return TYPE_ELEMENT;
650    }
651    if (mNamespaceUri.size() != 0) {
652        return TYPE_NAMESPACE;
653    }
654    return TYPE_CDATA;
655}
656
657const String16& XMLNode::getNamespacePrefix() const
658{
659    return mNamespacePrefix;
660}
661
662const String16& XMLNode::getNamespaceUri() const
663{
664    return mNamespaceUri;
665}
666
667const String16& XMLNode::getElementNamespace() const
668{
669    return mNamespaceUri;
670}
671
672const String16& XMLNode::getElementName() const
673{
674    return mElementName;
675}
676
677const Vector<sp<XMLNode> >& XMLNode::getChildren() const
678{
679    return mChildren;
680}
681
682const String8& XMLNode::getFilename() const
683{
684    return mFilename;
685}
686
687const Vector<XMLNode::attribute_entry>&
688    XMLNode::getAttributes() const
689{
690    return mAttributes;
691}
692
693const XMLNode::attribute_entry* XMLNode::getAttribute(const String16& ns,
694        const String16& name) const
695{
696    for (size_t i=0; i<mAttributes.size(); i++) {
697        const attribute_entry& ae(mAttributes.itemAt(i));
698        if (ae.ns == ns && ae.name == name) {
699            return &ae;
700        }
701    }
702
703    return NULL;
704}
705
706XMLNode::attribute_entry* XMLNode::editAttribute(const String16& ns,
707        const String16& name)
708{
709    for (size_t i=0; i<mAttributes.size(); i++) {
710        attribute_entry * ae = &mAttributes.editItemAt(i);
711        if (ae->ns == ns && ae->name == name) {
712            return ae;
713        }
714    }
715
716    return NULL;
717}
718
719const String16& XMLNode::getCData() const
720{
721    return mChars;
722}
723
724const String16& XMLNode::getComment() const
725{
726    return mComment;
727}
728
729int32_t XMLNode::getStartLineNumber() const
730{
731    return mStartLineNumber;
732}
733
734int32_t XMLNode::getEndLineNumber() const
735{
736    return mEndLineNumber;
737}
738
739sp<XMLNode> XMLNode::searchElement(const String16& tagNamespace, const String16& tagName)
740{
741    if (getType() == XMLNode::TYPE_ELEMENT
742            && mNamespaceUri == tagNamespace
743            && mElementName == tagName) {
744        return this;
745    }
746
747    for (size_t i=0; i<mChildren.size(); i++) {
748        sp<XMLNode> found = mChildren.itemAt(i)->searchElement(tagNamespace, tagName);
749        if (found != NULL) {
750            return found;
751        }
752    }
753
754    return NULL;
755}
756
757sp<XMLNode> XMLNode::getChildElement(const String16& tagNamespace, const String16& tagName)
758{
759    for (size_t i=0; i<mChildren.size(); i++) {
760        sp<XMLNode> child = mChildren.itemAt(i);
761        if (child->getType() == XMLNode::TYPE_ELEMENT
762                && child->mNamespaceUri == tagNamespace
763                && child->mElementName == tagName) {
764            return child;
765        }
766    }
767
768    return NULL;
769}
770
771status_t XMLNode::addChild(const sp<XMLNode>& child)
772{
773    if (getType() == TYPE_CDATA) {
774        SourcePos(mFilename, child->getStartLineNumber()).error("Child to CDATA node.");
775        return UNKNOWN_ERROR;
776    }
777    //printf("Adding child %p to parent %p\n", child.get(), this);
778    mChildren.add(child);
779    return NO_ERROR;
780}
781
782status_t XMLNode::insertChildAt(const sp<XMLNode>& child, size_t index)
783{
784    if (getType() == TYPE_CDATA) {
785        SourcePos(mFilename, child->getStartLineNumber()).error("Child to CDATA node.");
786        return UNKNOWN_ERROR;
787    }
788    //printf("Adding child %p to parent %p\n", child.get(), this);
789    mChildren.insertAt(child, index);
790    return NO_ERROR;
791}
792
793status_t XMLNode::addAttribute(const String16& ns, const String16& name,
794                               const String16& value)
795{
796    if (getType() == TYPE_CDATA) {
797        SourcePos(mFilename, getStartLineNumber()).error("Child to CDATA node.");
798        return UNKNOWN_ERROR;
799    }
800
801    if (ns != RESOURCES_TOOLS_NAMESPACE) {
802        attribute_entry e;
803        e.index = mNextAttributeIndex++;
804        e.ns = ns;
805        e.name = name;
806        e.string = value;
807        mAttributes.add(e);
808        mAttributeOrder.add(e.index, mAttributes.size()-1);
809    }
810    return NO_ERROR;
811}
812
813void XMLNode::setAttributeResID(size_t attrIdx, uint32_t resId)
814{
815    attribute_entry& e = mAttributes.editItemAt(attrIdx);
816    if (e.nameResId) {
817        mAttributeOrder.removeItem(e.nameResId);
818    } else {
819        mAttributeOrder.removeItem(e.index);
820    }
821    NOISY(printf("Elem %s %s=\"%s\": set res id = 0x%08x\n",
822            String8(getElementName()).string(),
823            String8(mAttributes.itemAt(attrIdx).name).string(),
824            String8(mAttributes.itemAt(attrIdx).string).string(),
825            resId));
826    mAttributes.editItemAt(attrIdx).nameResId = resId;
827    mAttributeOrder.add(resId, attrIdx);
828}
829
830status_t XMLNode::appendChars(const String16& chars)
831{
832    if (getType() != TYPE_CDATA) {
833        SourcePos(mFilename, getStartLineNumber()).error("Adding characters to element node.");
834        return UNKNOWN_ERROR;
835    }
836    mChars.append(chars);
837    return NO_ERROR;
838}
839
840status_t XMLNode::appendComment(const String16& comment)
841{
842    if (mComment.size() > 0) {
843        mComment.append(String16("\n"));
844    }
845    mComment.append(comment);
846    return NO_ERROR;
847}
848
849void XMLNode::setStartLineNumber(int32_t line)
850{
851    mStartLineNumber = line;
852}
853
854void XMLNode::setEndLineNumber(int32_t line)
855{
856    mEndLineNumber = line;
857}
858
859void XMLNode::removeWhitespace(bool stripAll, const char** cDataTags)
860{
861    //printf("Removing whitespace in %s\n", String8(mElementName).string());
862    size_t N = mChildren.size();
863    if (cDataTags) {
864        String8 tag(mElementName);
865        const char** p = cDataTags;
866        while (*p) {
867            if (tag == *p) {
868                stripAll = false;
869                break;
870            }
871        }
872    }
873    for (size_t i=0; i<N; i++) {
874        sp<XMLNode> node = mChildren.itemAt(i);
875        if (node->getType() == TYPE_CDATA) {
876            // This is a CDATA node...
877            const char16_t* p = node->mChars.string();
878            while (*p != 0 && *p < 128 && isspace(*p)) {
879                p++;
880            }
881            //printf("Space ends at %d in \"%s\"\n",
882            //       (int)(p-node->mChars.string()),
883            //       String8(node->mChars).string());
884            if (*p == 0) {
885                if (stripAll) {
886                    // Remove this node!
887                    mChildren.removeAt(i);
888                    N--;
889                    i--;
890                } else {
891                    node->mChars = String16(" ");
892                }
893            } else {
894                // Compact leading/trailing whitespace.
895                const char16_t* e = node->mChars.string()+node->mChars.size()-1;
896                while (e > p && *e < 128 && isspace(*e)) {
897                    e--;
898                }
899                if (p > node->mChars.string()) {
900                    p--;
901                }
902                if (e < (node->mChars.string()+node->mChars.size()-1)) {
903                    e++;
904                }
905                if (p > node->mChars.string() ||
906                    e < (node->mChars.string()+node->mChars.size()-1)) {
907                    String16 tmp(p, e-p+1);
908                    node->mChars = tmp;
909                }
910            }
911        } else {
912            node->removeWhitespace(stripAll, cDataTags);
913        }
914    }
915}
916
917status_t XMLNode::parseValues(const sp<AaptAssets>& assets,
918                              ResourceTable* table)
919{
920    bool hasErrors = false;
921
922    if (getType() == TYPE_ELEMENT) {
923        const size_t N = mAttributes.size();
924        String16 defPackage(assets->getPackage());
925        for (size_t i=0; i<N; i++) {
926            attribute_entry& e = mAttributes.editItemAt(i);
927            AccessorCookie ac(SourcePos(mFilename, getStartLineNumber()), String8(e.name),
928                    String8(e.string));
929            table->setCurrentXmlPos(SourcePos(mFilename, getStartLineNumber()));
930            if (!assets->getIncludedResources()
931                    .stringToValue(&e.value, &e.string,
932                                  e.string.string(), e.string.size(), true, true,
933                                  e.nameResId, NULL, &defPackage, table, &ac)) {
934                hasErrors = true;
935            }
936            NOISY(printf("Attr %s: type=0x%x, str=%s\n",
937                   String8(e.name).string(), e.value.dataType,
938                   String8(e.string).string()));
939        }
940    }
941    const size_t N = mChildren.size();
942    for (size_t i=0; i<N; i++) {
943        status_t err = mChildren.itemAt(i)->parseValues(assets, table);
944        if (err != NO_ERROR) {
945            hasErrors = true;
946        }
947    }
948    return hasErrors ? UNKNOWN_ERROR : NO_ERROR;
949}
950
951status_t XMLNode::assignResourceIds(const sp<AaptAssets>& assets,
952                                    const ResourceTable* table)
953{
954    bool hasErrors = false;
955
956    if (getType() == TYPE_ELEMENT) {
957        String16 attr("attr");
958        const char* errorMsg;
959        const size_t N = mAttributes.size();
960        for (size_t i=0; i<N; i++) {
961            const attribute_entry& e = mAttributes.itemAt(i);
962            if (e.ns.size() <= 0) continue;
963            bool nsIsPublic;
964            String16 pkg(getNamespaceResourcePackage(String16(assets->getPackage()), e.ns, &nsIsPublic));
965            NOISY(printf("Elem %s %s=\"%s\": namespace(%s) %s ===> %s\n",
966                    String8(getElementName()).string(),
967                    String8(e.name).string(),
968                    String8(e.string).string(),
969                    String8(e.ns).string(),
970                    (nsIsPublic) ? "public" : "private",
971                    String8(pkg).string()));
972            if (pkg.size() <= 0) continue;
973            uint32_t res = table != NULL
974                ? table->getResId(e.name, &attr, &pkg, &errorMsg, nsIsPublic)
975                : assets->getIncludedResources().
976                    identifierForName(e.name.string(), e.name.size(),
977                                      attr.string(), attr.size(),
978                                      pkg.string(), pkg.size());
979            if (res != 0) {
980                NOISY(printf("XML attribute name %s: resid=0x%08x\n",
981                             String8(e.name).string(), res));
982                setAttributeResID(i, res);
983            } else {
984                SourcePos(mFilename, getStartLineNumber()).error(
985                        "No resource identifier found for attribute '%s' in package '%s'\n",
986                        String8(e.name).string(), String8(pkg).string());
987                hasErrors = true;
988            }
989        }
990    }
991    const size_t N = mChildren.size();
992    for (size_t i=0; i<N; i++) {
993        status_t err = mChildren.itemAt(i)->assignResourceIds(assets, table);
994        if (err < NO_ERROR) {
995            hasErrors = true;
996        }
997    }
998
999    return hasErrors ? UNKNOWN_ERROR : NO_ERROR;
1000}
1001
1002status_t XMLNode::flatten(const sp<AaptFile>& dest,
1003        bool stripComments, bool stripRawValues) const
1004{
1005    StringPool strings(mUTF8);
1006    Vector<uint32_t> resids;
1007
1008    // First collect just the strings for attribute names that have a
1009    // resource ID assigned to them.  This ensures that the resource ID
1010    // array is compact, and makes it easier to deal with attribute names
1011    // in different namespaces (and thus with different resource IDs).
1012    collect_resid_strings(&strings, &resids);
1013
1014    // Next collect all remainibng strings.
1015    collect_strings(&strings, &resids, stripComments, stripRawValues);
1016
1017#if 0  // No longer compiles
1018    NOISY(printf("Found strings:\n");
1019        const size_t N = strings.size();
1020        for (size_t i=0; i<N; i++) {
1021            printf("%s\n", String8(strings.entryAt(i).string).string());
1022        }
1023    );
1024#endif
1025
1026    sp<AaptFile> stringPool = strings.createStringBlock();
1027    NOISY(aout << "String pool:"
1028          << HexDump(stringPool->getData(), stringPool->getSize()) << endl);
1029
1030    ResXMLTree_header header;
1031    memset(&header, 0, sizeof(header));
1032    header.header.type = htods(RES_XML_TYPE);
1033    header.header.headerSize = htods(sizeof(header));
1034
1035    const size_t basePos = dest->getSize();
1036    dest->writeData(&header, sizeof(header));
1037    dest->writeData(stringPool->getData(), stringPool->getSize());
1038
1039    // If we have resource IDs, write them.
1040    if (resids.size() > 0) {
1041        const size_t resIdsPos = dest->getSize();
1042        const size_t resIdsSize =
1043            sizeof(ResChunk_header)+(sizeof(uint32_t)*resids.size());
1044        ResChunk_header* idsHeader = (ResChunk_header*)
1045            (((const uint8_t*)dest->editData(resIdsPos+resIdsSize))+resIdsPos);
1046        idsHeader->type = htods(RES_XML_RESOURCE_MAP_TYPE);
1047        idsHeader->headerSize = htods(sizeof(*idsHeader));
1048        idsHeader->size = htodl(resIdsSize);
1049        uint32_t* ids = (uint32_t*)(idsHeader+1);
1050        for (size_t i=0; i<resids.size(); i++) {
1051            *ids++ = htodl(resids[i]);
1052        }
1053    }
1054
1055    flatten_node(strings, dest, stripComments, stripRawValues);
1056
1057    void* data = dest->editData();
1058    ResXMLTree_header* hd = (ResXMLTree_header*)(((uint8_t*)data)+basePos);
1059    size_t size = dest->getSize()-basePos;
1060    hd->header.size = htodl(dest->getSize()-basePos);
1061
1062    NOISY(aout << "XML resource:"
1063          << HexDump(dest->getData(), dest->getSize()) << endl);
1064
1065    #if PRINT_STRING_METRICS
1066    fprintf(stderr, "**** total xml size: %d / %d%% strings (in %s)\n",
1067        dest->getSize(), (stringPool->getSize()*100)/dest->getSize(),
1068        dest->getPath().string());
1069    #endif
1070
1071    return NO_ERROR;
1072}
1073
1074void XMLNode::print(int indent)
1075{
1076    String8 prefix;
1077    int i;
1078    for (i=0; i<indent; i++) {
1079        prefix.append("  ");
1080    }
1081    if (getType() == TYPE_ELEMENT) {
1082        String8 elemNs(getNamespaceUri());
1083        if (elemNs.size() > 0) {
1084            elemNs.append(":");
1085        }
1086        printf("%s E: %s%s", prefix.string(),
1087               elemNs.string(), String8(getElementName()).string());
1088        int N = mAttributes.size();
1089        for (i=0; i<N; i++) {
1090            ssize_t idx = mAttributeOrder.valueAt(i);
1091            if (i == 0) {
1092                printf(" / ");
1093            } else {
1094                printf(", ");
1095            }
1096            const attribute_entry& attr = mAttributes.itemAt(idx);
1097            String8 attrNs(attr.ns);
1098            if (attrNs.size() > 0) {
1099                attrNs.append(":");
1100            }
1101            if (attr.nameResId) {
1102                printf("%s%s(0x%08x)", attrNs.string(),
1103                       String8(attr.name).string(), attr.nameResId);
1104            } else {
1105                printf("%s%s", attrNs.string(), String8(attr.name).string());
1106            }
1107            printf("=%s", String8(attr.string).string());
1108        }
1109        printf("\n");
1110    } else if (getType() == TYPE_NAMESPACE) {
1111        printf("%s N: %s=%s\n", prefix.string(),
1112               getNamespacePrefix().size() > 0
1113                    ? String8(getNamespacePrefix()).string() : "<DEF>",
1114               String8(getNamespaceUri()).string());
1115    } else {
1116        printf("%s C: \"%s\"\n", prefix.string(), String8(getCData()).string());
1117    }
1118    int N = mChildren.size();
1119    for (i=0; i<N; i++) {
1120        mChildren.itemAt(i)->print(indent+1);
1121    }
1122}
1123
1124static void splitName(const char* name, String16* outNs, String16* outName)
1125{
1126    const char* p = name;
1127    while (*p != 0 && *p != 1) {
1128        p++;
1129    }
1130    if (*p == 0) {
1131        *outNs = String16();
1132        *outName = String16(name);
1133    } else {
1134        *outNs = String16(name, (p-name));
1135        *outName = String16(p+1);
1136    }
1137}
1138
1139void XMLCALL
1140XMLNode::startNamespace(void *userData, const char *prefix, const char *uri)
1141{
1142    NOISY_PARSE(printf("Start Namespace: %s %s\n", prefix, uri));
1143    ParseState* st = (ParseState*)userData;
1144    sp<XMLNode> node = XMLNode::newNamespace(st->filename,
1145            String16(prefix != NULL ? prefix : ""), String16(uri));
1146    node->setStartLineNumber(XML_GetCurrentLineNumber(st->parser));
1147    if (st->stack.size() > 0) {
1148        st->stack.itemAt(st->stack.size()-1)->addChild(node);
1149    } else {
1150        st->root = node;
1151    }
1152    st->stack.push(node);
1153}
1154
1155void XMLCALL
1156XMLNode::startElement(void *userData, const char *name, const char **atts)
1157{
1158    NOISY_PARSE(printf("Start Element: %s\n", name));
1159    ParseState* st = (ParseState*)userData;
1160    String16 ns16, name16;
1161    splitName(name, &ns16, &name16);
1162    sp<XMLNode> node = XMLNode::newElement(st->filename, ns16, name16);
1163    node->setStartLineNumber(XML_GetCurrentLineNumber(st->parser));
1164    if (st->pendingComment.size() > 0) {
1165        node->appendComment(st->pendingComment);
1166        st->pendingComment = String16();
1167    }
1168    if (st->stack.size() > 0) {
1169        st->stack.itemAt(st->stack.size()-1)->addChild(node);
1170    } else {
1171        st->root = node;
1172    }
1173    st->stack.push(node);
1174
1175    for (int i = 0; atts[i]; i += 2) {
1176        splitName(atts[i], &ns16, &name16);
1177        node->addAttribute(ns16, name16, String16(atts[i+1]));
1178    }
1179}
1180
1181void XMLCALL
1182XMLNode::characterData(void *userData, const XML_Char *s, int len)
1183{
1184    NOISY_PARSE(printf("CDATA: \"%s\"\n", String8(s, len).string()));
1185    ParseState* st = (ParseState*)userData;
1186    sp<XMLNode> node = NULL;
1187    if (st->stack.size() == 0) {
1188        return;
1189    }
1190    sp<XMLNode> parent = st->stack.itemAt(st->stack.size()-1);
1191    if (parent != NULL && parent->getChildren().size() > 0) {
1192        node = parent->getChildren()[parent->getChildren().size()-1];
1193        if (node->getType() != TYPE_CDATA) {
1194            // Last node is not CDATA, need to make a new node.
1195            node = NULL;
1196        }
1197    }
1198
1199    if (node == NULL) {
1200        node = XMLNode::newCData(st->filename);
1201        node->setStartLineNumber(XML_GetCurrentLineNumber(st->parser));
1202        parent->addChild(node);
1203    }
1204
1205    node->appendChars(String16(s, len));
1206}
1207
1208void XMLCALL
1209XMLNode::endElement(void *userData, const char *name)
1210{
1211    NOISY_PARSE(printf("End Element: %s\n", name));
1212    ParseState* st = (ParseState*)userData;
1213    sp<XMLNode> node = st->stack.itemAt(st->stack.size()-1);
1214    node->setEndLineNumber(XML_GetCurrentLineNumber(st->parser));
1215    if (st->pendingComment.size() > 0) {
1216        node->appendComment(st->pendingComment);
1217        st->pendingComment = String16();
1218    }
1219    String16 ns16, name16;
1220    splitName(name, &ns16, &name16);
1221    LOG_ALWAYS_FATAL_IF(node->getElementNamespace() != ns16
1222                        || node->getElementName() != name16,
1223                        "Bad end element %s", name);
1224    st->stack.pop();
1225}
1226
1227void XMLCALL
1228XMLNode::endNamespace(void *userData, const char *prefix)
1229{
1230    const char* nonNullPrefix = prefix != NULL ? prefix : "";
1231    NOISY_PARSE(printf("End Namespace: %s\n", prefix));
1232    ParseState* st = (ParseState*)userData;
1233    sp<XMLNode> node = st->stack.itemAt(st->stack.size()-1);
1234    node->setEndLineNumber(XML_GetCurrentLineNumber(st->parser));
1235    LOG_ALWAYS_FATAL_IF(node->getNamespacePrefix() != String16(nonNullPrefix),
1236                        "Bad end namespace %s", prefix);
1237    st->stack.pop();
1238}
1239
1240void XMLCALL
1241XMLNode::commentData(void *userData, const char *comment)
1242{
1243    NOISY_PARSE(printf("Comment: %s\n", comment));
1244    ParseState* st = (ParseState*)userData;
1245    if (st->pendingComment.size() > 0) {
1246        st->pendingComment.append(String16("\n"));
1247    }
1248    st->pendingComment.append(String16(comment));
1249}
1250
1251status_t XMLNode::collect_strings(StringPool* dest, Vector<uint32_t>* outResIds,
1252        bool stripComments, bool stripRawValues) const
1253{
1254    collect_attr_strings(dest, outResIds, true);
1255
1256    int i;
1257    if (RESOURCES_TOOLS_NAMESPACE != mNamespaceUri) {
1258        if (mNamespacePrefix.size() > 0) {
1259            dest->add(mNamespacePrefix, true);
1260        }
1261        if (mNamespaceUri.size() > 0) {
1262            dest->add(mNamespaceUri, true);
1263        }
1264    }
1265    if (mElementName.size() > 0) {
1266        dest->add(mElementName, true);
1267    }
1268
1269    if (!stripComments && mComment.size() > 0) {
1270        dest->add(mComment, true);
1271    }
1272
1273    const int NA = mAttributes.size();
1274
1275    for (i=0; i<NA; i++) {
1276        const attribute_entry& ae = mAttributes.itemAt(i);
1277        if (ae.ns.size() > 0) {
1278            dest->add(ae.ns, true);
1279        }
1280        if (!stripRawValues || ae.needStringValue()) {
1281            dest->add(ae.string, true);
1282        }
1283        /*
1284        if (ae.value.dataType == Res_value::TYPE_NULL
1285                || ae.value.dataType == Res_value::TYPE_STRING) {
1286            dest->add(ae.string, true);
1287        }
1288        */
1289    }
1290
1291    if (mElementName.size() == 0) {
1292        // If not an element, include the CDATA, even if it is empty.
1293        dest->add(mChars, true);
1294    }
1295
1296    const int NC = mChildren.size();
1297
1298    for (i=0; i<NC; i++) {
1299        mChildren.itemAt(i)->collect_strings(dest, outResIds,
1300                stripComments, stripRawValues);
1301    }
1302
1303    return NO_ERROR;
1304}
1305
1306status_t XMLNode::collect_attr_strings(StringPool* outPool,
1307        Vector<uint32_t>* outResIds, bool allAttrs) const {
1308    const int NA = mAttributes.size();
1309
1310    for (int i=0; i<NA; i++) {
1311        const attribute_entry& attr = mAttributes.itemAt(i);
1312        uint32_t id = attr.nameResId;
1313        if (id || allAttrs) {
1314            // See if we have already assigned this resource ID to a pooled
1315            // string...
1316            const Vector<size_t>* indices = outPool->offsetsForString(attr.name);
1317            ssize_t idx = -1;
1318            if (indices != NULL) {
1319                const int NJ = indices->size();
1320                const size_t NR = outResIds->size();
1321                for (int j=0; j<NJ; j++) {
1322                    size_t strIdx = indices->itemAt(j);
1323                    if (strIdx >= NR) {
1324                        if (id == 0) {
1325                            // We don't need to assign a resource ID for this one.
1326                            idx = strIdx;
1327                            break;
1328                        }
1329                        // Just ignore strings that are out of range of
1330                        // the currently assigned resource IDs...  we add
1331                        // strings as we assign the first ID.
1332                    } else if (outResIds->itemAt(strIdx) == id) {
1333                        idx = strIdx;
1334                        break;
1335                    }
1336                }
1337            }
1338            if (idx < 0) {
1339                idx = outPool->add(attr.name);
1340                NOISY(printf("Adding attr %s (resid 0x%08x) to pool: idx=%d\n",
1341                        String8(attr.name).string(), id, idx));
1342                if (id != 0) {
1343                    while ((ssize_t)outResIds->size() <= idx) {
1344                        outResIds->add(0);
1345                    }
1346                    outResIds->replaceAt(id, idx);
1347                }
1348            }
1349            attr.namePoolIdx = idx;
1350            NOISY(printf("String %s offset=0x%08x\n",
1351                         String8(attr.name).string(), idx));
1352        }
1353    }
1354
1355    return NO_ERROR;
1356}
1357
1358status_t XMLNode::collect_resid_strings(StringPool* outPool,
1359        Vector<uint32_t>* outResIds) const
1360{
1361    collect_attr_strings(outPool, outResIds, false);
1362
1363    const int NC = mChildren.size();
1364
1365    for (int i=0; i<NC; i++) {
1366        mChildren.itemAt(i)->collect_resid_strings(outPool, outResIds);
1367    }
1368
1369    return NO_ERROR;
1370}
1371
1372status_t XMLNode::flatten_node(const StringPool& strings, const sp<AaptFile>& dest,
1373        bool stripComments, bool stripRawValues) const
1374{
1375    ResXMLTree_node node;
1376    ResXMLTree_cdataExt cdataExt;
1377    ResXMLTree_namespaceExt namespaceExt;
1378    ResXMLTree_attrExt attrExt;
1379    const void* extData = NULL;
1380    size_t extSize = 0;
1381    ResXMLTree_attribute attr;
1382    bool writeCurrentNode = true;
1383
1384    const size_t NA = mAttributes.size();
1385    const size_t NC = mChildren.size();
1386    size_t i;
1387
1388    LOG_ALWAYS_FATAL_IF(NA != mAttributeOrder.size(), "Attributes messed up!");
1389
1390    const String16 id16("id");
1391    const String16 class16("class");
1392    const String16 style16("style");
1393
1394    const type type = getType();
1395
1396    memset(&node, 0, sizeof(node));
1397    memset(&attr, 0, sizeof(attr));
1398    node.header.headerSize = htods(sizeof(node));
1399    node.lineNumber = htodl(getStartLineNumber());
1400    if (!stripComments) {
1401        node.comment.index = htodl(
1402            mComment.size() > 0 ? strings.offsetForString(mComment) : -1);
1403        //if (mComment.size() > 0) {
1404        //  printf("Flattening comment: %s\n", String8(mComment).string());
1405        //}
1406    } else {
1407        node.comment.index = htodl((uint32_t)-1);
1408    }
1409    if (type == TYPE_ELEMENT) {
1410        node.header.type = htods(RES_XML_START_ELEMENT_TYPE);
1411        extData = &attrExt;
1412        extSize = sizeof(attrExt);
1413        memset(&attrExt, 0, sizeof(attrExt));
1414        if (mNamespaceUri.size() > 0) {
1415            attrExt.ns.index = htodl(strings.offsetForString(mNamespaceUri));
1416        } else {
1417            attrExt.ns.index = htodl((uint32_t)-1);
1418        }
1419        attrExt.name.index = htodl(strings.offsetForString(mElementName));
1420        attrExt.attributeStart = htods(sizeof(attrExt));
1421        attrExt.attributeSize = htods(sizeof(attr));
1422        attrExt.attributeCount = htods(NA);
1423        attrExt.idIndex = htods(0);
1424        attrExt.classIndex = htods(0);
1425        attrExt.styleIndex = htods(0);
1426        for (i=0; i<NA; i++) {
1427            ssize_t idx = mAttributeOrder.valueAt(i);
1428            const attribute_entry& ae = mAttributes.itemAt(idx);
1429            if (ae.ns.size() == 0) {
1430                if (ae.name == id16) {
1431                    attrExt.idIndex = htods(i+1);
1432                } else if (ae.name == class16) {
1433                    attrExt.classIndex = htods(i+1);
1434                } else if (ae.name == style16) {
1435                    attrExt.styleIndex = htods(i+1);
1436                }
1437            }
1438        }
1439    } else if (type == TYPE_NAMESPACE) {
1440        if (mNamespaceUri == RESOURCES_TOOLS_NAMESPACE) {
1441            writeCurrentNode = false;
1442        } else {
1443            node.header.type = htods(RES_XML_START_NAMESPACE_TYPE);
1444            extData = &namespaceExt;
1445            extSize = sizeof(namespaceExt);
1446            memset(&namespaceExt, 0, sizeof(namespaceExt));
1447            if (mNamespacePrefix.size() > 0) {
1448                namespaceExt.prefix.index = htodl(strings.offsetForString(mNamespacePrefix));
1449            } else {
1450                namespaceExt.prefix.index = htodl((uint32_t)-1);
1451            }
1452            namespaceExt.prefix.index = htodl(strings.offsetForString(mNamespacePrefix));
1453            namespaceExt.uri.index = htodl(strings.offsetForString(mNamespaceUri));
1454        }
1455        LOG_ALWAYS_FATAL_IF(NA != 0, "Namespace nodes can't have attributes!");
1456    } else if (type == TYPE_CDATA) {
1457        node.header.type = htods(RES_XML_CDATA_TYPE);
1458        extData = &cdataExt;
1459        extSize = sizeof(cdataExt);
1460        memset(&cdataExt, 0, sizeof(cdataExt));
1461        cdataExt.data.index = htodl(strings.offsetForString(mChars));
1462        cdataExt.typedData.size = htods(sizeof(cdataExt.typedData));
1463        cdataExt.typedData.res0 = 0;
1464        cdataExt.typedData.dataType = mCharsValue.dataType;
1465        cdataExt.typedData.data = htodl(mCharsValue.data);
1466        LOG_ALWAYS_FATAL_IF(NA != 0, "CDATA nodes can't have attributes!");
1467    }
1468
1469    node.header.size = htodl(sizeof(node) + extSize + (sizeof(attr)*NA));
1470
1471    if (writeCurrentNode) {
1472        dest->writeData(&node, sizeof(node));
1473        if (extSize > 0) {
1474            dest->writeData(extData, extSize);
1475        }
1476    }
1477
1478    for (i=0; i<NA; i++) {
1479        ssize_t idx = mAttributeOrder.valueAt(i);
1480        const attribute_entry& ae = mAttributes.itemAt(idx);
1481        if (ae.ns.size() > 0) {
1482            attr.ns.index = htodl(strings.offsetForString(ae.ns));
1483        } else {
1484            attr.ns.index = htodl((uint32_t)-1);
1485        }
1486        attr.name.index = htodl(ae.namePoolIdx);
1487
1488        if (!stripRawValues || ae.needStringValue()) {
1489            attr.rawValue.index = htodl(strings.offsetForString(ae.string));
1490        } else {
1491            attr.rawValue.index = htodl((uint32_t)-1);
1492        }
1493        attr.typedValue.size = htods(sizeof(attr.typedValue));
1494        if (ae.value.dataType == Res_value::TYPE_NULL
1495                || ae.value.dataType == Res_value::TYPE_STRING) {
1496            attr.typedValue.res0 = 0;
1497            attr.typedValue.dataType = Res_value::TYPE_STRING;
1498            attr.typedValue.data = htodl(strings.offsetForString(ae.string));
1499        } else {
1500            attr.typedValue.res0 = 0;
1501            attr.typedValue.dataType = ae.value.dataType;
1502            attr.typedValue.data = htodl(ae.value.data);
1503        }
1504        dest->writeData(&attr, sizeof(attr));
1505    }
1506
1507    for (i=0; i<NC; i++) {
1508        status_t err = mChildren.itemAt(i)->flatten_node(strings, dest,
1509                stripComments, stripRawValues);
1510        if (err != NO_ERROR) {
1511            return err;
1512        }
1513    }
1514
1515    if (type == TYPE_ELEMENT) {
1516        ResXMLTree_endElementExt endElementExt;
1517        memset(&endElementExt, 0, sizeof(endElementExt));
1518        node.header.type = htods(RES_XML_END_ELEMENT_TYPE);
1519        node.header.size = htodl(sizeof(node)+sizeof(endElementExt));
1520        node.lineNumber = htodl(getEndLineNumber());
1521        node.comment.index = htodl((uint32_t)-1);
1522        endElementExt.ns.index = attrExt.ns.index;
1523        endElementExt.name.index = attrExt.name.index;
1524        dest->writeData(&node, sizeof(node));
1525        dest->writeData(&endElementExt, sizeof(endElementExt));
1526    } else if (type == TYPE_NAMESPACE) {
1527        if (writeCurrentNode) {
1528            node.header.type = htods(RES_XML_END_NAMESPACE_TYPE);
1529            node.lineNumber = htodl(getEndLineNumber());
1530            node.comment.index = htodl((uint32_t)-1);
1531            node.header.size = htodl(sizeof(node)+extSize);
1532            dest->writeData(&node, sizeof(node));
1533            dest->writeData(extData, extSize);
1534        }
1535    }
1536
1537    return NO_ERROR;
1538}
1539