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Diffstat (limited to 'deps/node/deps/icu-small/source/tools/toolutil/xmlparser.cpp')
| -rw-r--r-- | deps/node/deps/icu-small/source/tools/toolutil/xmlparser.cpp | 826 |
1 files changed, 0 insertions, 826 deletions
diff --git a/deps/node/deps/icu-small/source/tools/toolutil/xmlparser.cpp b/deps/node/deps/icu-small/source/tools/toolutil/xmlparser.cpp deleted file mode 100644 index ae7ef170..00000000 --- a/deps/node/deps/icu-small/source/tools/toolutil/xmlparser.cpp +++ /dev/null @@ -1,826 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -******************************************************************************* -* -* Copyright (C) 2004-2010, International Business Machines -* Corporation and others. All Rights Reserved. -* -******************************************************************************* -* file name: xmlparser.cpp -* encoding: UTF-8 -* tab size: 8 (not used) -* indentation:4 -* -* created on: 2004jul21 -* created by: Andy Heninger -*/ - -#include <stdio.h> -#include "unicode/uchar.h" -#include "unicode/ucnv.h" -#include "unicode/regex.h" -#include "filestrm.h" -#include "xmlparser.h" - -#if !UCONFIG_NO_REGULAR_EXPRESSIONS && !UCONFIG_NO_CONVERSION - -// character constants -enum { - x_QUOT=0x22, - x_AMP=0x26, - x_APOS=0x27, - x_LT=0x3c, - x_GT=0x3e, - x_l=0x6c -}; - -#define XML_SPACES "[ \\u0009\\u000d\\u000a]" - -// XML #4 -#define XML_NAMESTARTCHAR "[[A-Z]:_[a-z][\\u00c0-\\u00d6][\\u00d8-\\u00f6]" \ - "[\\u00f8-\\u02ff][\\u0370-\\u037d][\\u037F-\\u1FFF][\\u200C-\\u200D]" \ - "[\\u2070-\\u218F][\\u2C00-\\u2FEF][\\u3001-\\uD7FF][\\uF900-\\uFDCF]" \ - "[\\uFDF0-\\uFFFD][\\U00010000-\\U000EFFFF]]" - -// XML #5 -#define XML_NAMECHAR "[" XML_NAMESTARTCHAR "\\-.[0-9]\\u00b7[\\u0300-\\u036f][\\u203f-\\u2040]]" - -// XML #6 -#define XML_NAME XML_NAMESTARTCHAR "(?:" XML_NAMECHAR ")*" - -U_NAMESPACE_BEGIN - -UOBJECT_DEFINE_RTTI_IMPLEMENTATION(UXMLParser) -UOBJECT_DEFINE_RTTI_IMPLEMENTATION(UXMLElement) - -// -// UXMLParser constructor. Mostly just initializes the ICU regexes that are -// used for parsing. -// -UXMLParser::UXMLParser(UErrorCode &status) : - // XML Declaration. XML Production #23. - // example: "<?xml version=1.0 encoding="utf-16" ?> - // This is a sloppy implementation - just look for the leading <?xml and the closing ?> - // allow for a possible leading BOM. - mXMLDecl(UnicodeString("(?s)\\uFEFF?<\\?xml.+?\\?>", -1, US_INV), 0, status), - - // XML Comment production #15 - // example: "<!-- whatever --> - // note, does not detect an illegal "--" within comments - mXMLComment(UnicodeString("(?s)<!--.+?-->", -1, US_INV), 0, status), - - // XML Spaces - // production [3] - mXMLSP(UnicodeString(XML_SPACES "+", -1, US_INV), 0, status), - - // XML Doctype decl production #28 - // example "<!DOCTYPE foo SYSTEM "somewhere" > - // or "<!DOCTYPE foo [internal dtd]> - // TODO: we don't actually parse the DOCTYPE or internal subsets. - // Some internal dtd subsets could confuse this simple-minded - // attempt at skipping over them, specifically, occcurences - // of closeing square brackets. These could appear in comments, - // or in parameter entity declarations, for example. - mXMLDoctype(UnicodeString( - "(?s)<!DOCTYPE.*?(>|\\[.*?\\].*?>)", -1, US_INV - ), 0, status), - - // XML PI production #16 - // example "<?target stuff?> - mXMLPI(UnicodeString("(?s)<\\?.+?\\?>", -1, US_INV), 0, status), - - // XML Element Start Productions #40, #41 - // example <foo att1='abc' att2="d e f" > - // capture #1: the tag name - // - mXMLElemStart (UnicodeString("(?s)<(" XML_NAME ")" // match "<tag_name" - "(?:" - XML_SPACES "+" XML_NAME XML_SPACES "*=" XML_SPACES "*" // match "ATTR_NAME = " - "(?:(?:\\\'[^<\\\']*?\\\')|(?:\\\"[^<\\\"]*?\\\"))" // match '"attribute value"' - ")*" // * for zero or more attributes. - XML_SPACES "*?>", -1, US_INV), 0, status), // match " >" - - // XML Element End production #42 - // example </foo> - mXMLElemEnd (UnicodeString("</(" XML_NAME ")" XML_SPACES "*>", -1, US_INV), 0, status), - - // XML Element Empty production #44 - // example <foo att1="abc" att2="d e f" /> - mXMLElemEmpty (UnicodeString("(?s)<(" XML_NAME ")" // match "<tag_name" - "(?:" - XML_SPACES "+" XML_NAME XML_SPACES "*=" XML_SPACES "*" // match "ATTR_NAME = " - "(?:(?:\\\'[^<\\\']*?\\\')|(?:\\\"[^<\\\"]*?\\\"))" // match '"attribute value"' - ")*" // * for zero or more attributes. - XML_SPACES "*?/>", -1, US_INV), 0, status), // match " />" - - - // XMLCharData. Everything but '<'. Note that & will be dealt with later. - mXMLCharData(UnicodeString("(?s)[^<]*", -1, US_INV), 0, status), - - // Attribute name = "value". XML Productions 10, 40/41 - // Capture group 1 is name, - // 2 is the attribute value, including the quotes. - // - // Note that attributes are scanned twice. The first time is with - // the regex for an entire element start. There, the attributes - // are checked syntactically, but not separted out one by one. - // Here, we match a single attribute, and make its name and - // attribute value available to the parser code. - mAttrValue(UnicodeString(XML_SPACES "+(" XML_NAME ")" XML_SPACES "*=" XML_SPACES "*" - "((?:\\\'[^<\\\']*?\\\')|(?:\\\"[^<\\\"]*?\\\"))", -1, US_INV), 0, status), - - - mAttrNormalizer(UnicodeString(XML_SPACES, -1, US_INV), 0, status), - - // Match any of the new-line sequences in content. - // All are changed to \u000a. - mNewLineNormalizer(UnicodeString("\\u000d\\u000a|\\u000d\\u0085|\\u000a|\\u000d|\\u0085|\\u2028", -1, US_INV), 0, status), - - // & char references - // We will figure out what we've got based on which capture group has content. - // The last one is a catchall for unrecognized entity references.. - // 1 2 3 4 5 6 7 8 - mAmps(UnicodeString("&(?:(amp;)|(lt;)|(gt;)|(apos;)|(quot;)|#x([0-9A-Fa-f]{1,8});|#([0-9]{1,8});|(.))"), - 0, status), - - fNames(status), - fElementStack(status), - fOneLF((UChar)0x0a) // Plain new-line string, used in new line normalization. - { - } - -UXMLParser * -UXMLParser::createParser(UErrorCode &errorCode) { - if (U_FAILURE(errorCode)) { - return NULL; - } else { - return new UXMLParser(errorCode); - } -} - -UXMLParser::~UXMLParser() {} - -UXMLElement * -UXMLParser::parseFile(const char *filename, UErrorCode &errorCode) { - char bytes[4096], charsetBuffer[100]; - FileStream *f; - const char *charset, *pb; - UnicodeString src; - UConverter *cnv; - UChar *buffer, *pu; - int32_t fileLength, bytesLength, length, capacity; - UBool flush; - - if(U_FAILURE(errorCode)) { - return NULL; - } - - f=T_FileStream_open(filename, "rb"); - if(f==NULL) { - errorCode=U_FILE_ACCESS_ERROR; - return NULL; - } - - bytesLength=T_FileStream_read(f, bytes, (int32_t)sizeof(bytes)); - if(bytesLength<(int32_t)sizeof(bytes)) { - // we have already read the entire file - fileLength=bytesLength; - } else { - // get the file length - fileLength=T_FileStream_size(f); - } - - /* - * get the charset: - * 1. Unicode signature - * 2. treat as ISO-8859-1 and read XML encoding="charser" - * 3. default to UTF-8 - */ - charset=ucnv_detectUnicodeSignature(bytes, bytesLength, NULL, &errorCode); - if(U_SUCCESS(errorCode) && charset!=NULL) { - // open converter according to Unicode signature - cnv=ucnv_open(charset, &errorCode); - } else { - // read as Latin-1 and parse the XML declaration and encoding - cnv=ucnv_open("ISO-8859-1", &errorCode); - if(U_FAILURE(errorCode)) { - // unexpected error opening Latin-1 converter - goto exit; - } - - buffer=toUCharPtr(src.getBuffer(bytesLength)); - if(buffer==NULL) { - // unexpected failure to reserve some string capacity - errorCode=U_MEMORY_ALLOCATION_ERROR; - goto exit; - } - pb=bytes; - pu=buffer; - ucnv_toUnicode( - cnv, - &pu, buffer+src.getCapacity(), - &pb, bytes+bytesLength, - NULL, TRUE, &errorCode); - src.releaseBuffer(U_SUCCESS(errorCode) ? (int32_t)(pu-buffer) : 0); - ucnv_close(cnv); - cnv=NULL; - if(U_FAILURE(errorCode)) { - // unexpected error in conversion from Latin-1 - src.remove(); - goto exit; - } - - // parse XML declaration - if(mXMLDecl.reset(src).lookingAt(0, errorCode)) { - int32_t declEnd=mXMLDecl.end(errorCode); - // go beyond <?xml - int32_t pos=src.indexOf((UChar)x_l)+1; - - mAttrValue.reset(src); - while(pos<declEnd && mAttrValue.lookingAt(pos, errorCode)) { // loop runs once per attribute on this element. - UnicodeString attName = mAttrValue.group(1, errorCode); - UnicodeString attValue = mAttrValue.group(2, errorCode); - - // Trim the quotes from the att value. These are left over from the original regex - // that parsed the attribue, which couldn't conveniently strip them. - attValue.remove(0,1); // one char from the beginning - attValue.truncate(attValue.length()-1); // and one from the end. - - if(attName==UNICODE_STRING("encoding", 8)) { - length=attValue.extract(0, 0x7fffffff, charsetBuffer, (int32_t)sizeof(charsetBuffer)); - charset=charsetBuffer; - break; - } - pos = mAttrValue.end(2, errorCode); - } - - if(charset==NULL) { - // default to UTF-8 - charset="UTF-8"; - } - cnv=ucnv_open(charset, &errorCode); - } - } - - if(U_FAILURE(errorCode)) { - // unable to open the converter - goto exit; - } - - // convert the file contents - capacity=fileLength; // estimated capacity - src.getBuffer(capacity); - src.releaseBuffer(0); // zero length - flush=FALSE; - for(;;) { - // convert contents of bytes[bytesLength] - pb=bytes; - for(;;) { - length=src.length(); - buffer=toUCharPtr(src.getBuffer(capacity)); - if(buffer==NULL) { - // unexpected failure to reserve some string capacity - errorCode=U_MEMORY_ALLOCATION_ERROR; - goto exit; - } - - pu=buffer+length; - ucnv_toUnicode( - cnv, &pu, buffer+src.getCapacity(), - &pb, bytes+bytesLength, - NULL, FALSE, &errorCode); - src.releaseBuffer(U_SUCCESS(errorCode) ? (int32_t)(pu-buffer) : 0); - if(errorCode==U_BUFFER_OVERFLOW_ERROR) { - errorCode=U_ZERO_ERROR; - capacity=(3*src.getCapacity())/2; // increase capacity by 50% - } else { - break; - } - } - - if(U_FAILURE(errorCode)) { - break; // conversion error - } - - if(flush) { - break; // completely converted the file - } - - // read next block - bytesLength=T_FileStream_read(f, bytes, (int32_t)sizeof(bytes)); - if(bytesLength==0) { - // reached end of file, convert once more to flush the converter - flush=TRUE; - } - }; - -exit: - ucnv_close(cnv); - T_FileStream_close(f); - - if(U_SUCCESS(errorCode)) { - return parse(src, errorCode); - } else { - return NULL; - } -} - -UXMLElement * -UXMLParser::parse(const UnicodeString &src, UErrorCode &status) { - if(U_FAILURE(status)) { - return NULL; - } - - UXMLElement *root = NULL; - fPos = 0; // TODO use just a local pos variable and pass it into functions - // where necessary? - - // set all matchers to work on the input string - mXMLDecl.reset(src); - mXMLComment.reset(src); - mXMLSP.reset(src); - mXMLDoctype.reset(src); - mXMLPI.reset(src); - mXMLElemStart.reset(src); - mXMLElemEnd.reset(src); - mXMLElemEmpty.reset(src); - mXMLCharData.reset(src); - mAttrValue.reset(src); - mAttrNormalizer.reset(src); - mNewLineNormalizer.reset(src); - mAmps.reset(src); - - // Consume the XML Declaration, if present. - if (mXMLDecl.lookingAt(fPos, status)) { - fPos = mXMLDecl.end(status); - } - - // Consume "misc" [XML production 27] appearing before DocType - parseMisc(status); - - // Consume a DocType declaration, if present. - if (mXMLDoctype.lookingAt(fPos, status)) { - fPos = mXMLDoctype.end(status); - } - - // Consume additional "misc" [XML production 27] appearing after the DocType - parseMisc(status); - - // Get the root element - if (mXMLElemEmpty.lookingAt(fPos, status)) { - // Root is an empty element (no nested elements or content) - root = createElement(mXMLElemEmpty, status); - fPos = mXMLElemEmpty.end(status); - } else { - if (mXMLElemStart.lookingAt(fPos, status) == FALSE) { - error("Root Element expected", status); - goto errorExit; - } - root = createElement(mXMLElemStart, status); - UXMLElement *el = root; - - // - // This is the loop that consumes the root element of the document, - // including all nested content. Nested elements are handled by - // explicit pushes/pops of the element stack; there is no recursion - // in the control flow of this code. - // "el" always refers to the current element, the one to which content - // is being added. It is above the top of the element stack. - for (;;) { - // Nested Element Start - if (mXMLElemStart.lookingAt(fPos, status)) { - UXMLElement *t = createElement(mXMLElemStart, status); - el->fChildren.addElement(t, status); - t->fParent = el; - fElementStack.push(el, status); - el = t; - continue; - } - - // Text Content. String is concatenated onto the current node's content, - // but only if it contains something other than spaces. - UnicodeString s = scanContent(status); - if (s.length() > 0) { - mXMLSP.reset(s); - if (mXMLSP.matches(status) == FALSE) { - // This chunk of text contains something other than just - // white space. Make a child node for it. - replaceCharRefs(s, status); - el->fChildren.addElement(s.clone(), status); - } - mXMLSP.reset(src); // The matchers need to stay set to the main input string. - continue; - } - - // Comments. Discard. - if (mXMLComment.lookingAt(fPos, status)) { - fPos = mXMLComment.end(status); - continue; - } - - // PIs. Discard. - if (mXMLPI.lookingAt(fPos, status)) { - fPos = mXMLPI.end(status); - continue; - } - - // Element End - if (mXMLElemEnd.lookingAt(fPos, status)) { - fPos = mXMLElemEnd.end(0, status); - const UnicodeString name = mXMLElemEnd.group(1, status); - if (name != *el->fName) { - error("Element start / end tag mismatch", status); - goto errorExit; - } - if (fElementStack.empty()) { - // Close of the root element. We're done with the doc. - el = NULL; - break; - } - el = (UXMLElement *)fElementStack.pop(); - continue; - } - - // Empty Element. Stored as a child of the current element, but not stacked. - if (mXMLElemEmpty.lookingAt(fPos, status)) { - UXMLElement *t = createElement(mXMLElemEmpty, status); - el->fChildren.addElement(t, status); - continue; - } - - // Hit something within the document that doesn't match anything. - // It's an error. - error("Unrecognized markup", status); - break; - } - - if (el != NULL || !fElementStack.empty()) { - // We bailed out early, for some reason. - error("Root element not closed.", status); - goto errorExit; - } - } - - // Root Element parse is complete. - // Consume the annoying xml "Misc" that can appear at the end of the doc. - parseMisc(status); - - // We should have reached the end of the input - if (fPos != src.length()) { - error("Extra content at the end of the document", status); - goto errorExit; - } - - // Success! - return root; - -errorExit: - delete root; - return NULL; -} - -// -// createElement -// We've just matched an element start tag. Create and fill in a UXMLElement object -// for it. -// -UXMLElement * -UXMLParser::createElement(RegexMatcher &mEl, UErrorCode &status) { - // First capture group is the element's name. - UXMLElement *el = new UXMLElement(this, intern(mEl.group(1, status), status), status); - - // Scan for attributes. - int32_t pos = mEl.end(1, status); // The position after the end of the tag name - - while (mAttrValue.lookingAt(pos, status)) { // loop runs once per attribute on this element. - UnicodeString attName = mAttrValue.group(1, status); - UnicodeString attValue = mAttrValue.group(2, status); - - // Trim the quotes from the att value. These are left over from the original regex - // that parsed the attribue, which couldn't conveniently strip them. - attValue.remove(0,1); // one char from the beginning - attValue.truncate(attValue.length()-1); // and one from the end. - - // XML Attribue value normalization. - // This is one of the really screwy parts of the XML spec. - // See http://www.w3.org/TR/2004/REC-xml11-20040204/#AVNormalize - // Note that non-validating parsers must treat all entities as type CDATA - // which simplifies things some. - - // Att normalization step 1: normalize any newlines in the attribute value - mNewLineNormalizer.reset(attValue); - attValue = mNewLineNormalizer.replaceAll(fOneLF, status); - - // Next change all xml white space chars to plain \u0020 spaces. - mAttrNormalizer.reset(attValue); - UnicodeString oneSpace((UChar)0x0020); - attValue = mAttrNormalizer.replaceAll(oneSpace, status); - - // Replace character entities. - replaceCharRefs(attValue, status); - - // Save the attribute name and value in our document structure. - el->fAttNames.addElement((void *)intern(attName, status), status); - el->fAttValues.addElement(attValue.clone(), status); - pos = mAttrValue.end(2, status); - } - fPos = mEl.end(0, status); - return el; -} - -// -// parseMisc -// Consume XML "Misc" [production #27] -// which is any combination of space, PI and comments -// Need to watch end-of-input because xml MISC stuff is allowed after -// the document element, so we WILL scan off the end in this function -// -void -UXMLParser::parseMisc(UErrorCode &status) { - for (;;) { - if (fPos >= mXMLPI.input().length()) { - break; - } - if (mXMLPI.lookingAt(fPos, status)) { - fPos = mXMLPI.end(status); - continue; - } - if (mXMLSP.lookingAt(fPos, status)) { - fPos = mXMLSP.end(status); - continue; - } - if (mXMLComment.lookingAt(fPos, status)) { - fPos = mXMLComment.end(status); - continue; - } - break; - } -} - -// -// Scan for document content. -// -UnicodeString -UXMLParser::scanContent(UErrorCode &status) { - UnicodeString result; - if (mXMLCharData.lookingAt(fPos, status)) { - result = mXMLCharData.group((int32_t)0, status); - // Normalize the new-lines. (Before char ref substitution) - mNewLineNormalizer.reset(result); - result = mNewLineNormalizer.replaceAll(fOneLF, status); - - // TODO: handle CDATA - fPos = mXMLCharData.end(0, status); - } - - return result; -} - -// -// replaceCharRefs -// -// replace the char entities < & { ካ etc. in a string -// with the corresponding actual character. -// -void -UXMLParser::replaceCharRefs(UnicodeString &s, UErrorCode &status) { - UnicodeString result; - UnicodeString replacement; - int i; - - mAmps.reset(s); - // See the initialization for the regex matcher mAmps. - // Which entity we've matched is determined by which capture group has content, - // which is flaged by start() of that group not being -1. - while (mAmps.find()) { - if (mAmps.start(1, status) != -1) { - replacement.setTo((UChar)x_AMP); - } else if (mAmps.start(2, status) != -1) { - replacement.setTo((UChar)x_LT); - } else if (mAmps.start(3, status) != -1) { - replacement.setTo((UChar)x_GT); - } else if (mAmps.start(4, status) != -1) { - replacement.setTo((UChar)x_APOS); - } else if (mAmps.start(5, status) != -1) { - replacement.setTo((UChar)x_QUOT); - } else if (mAmps.start(6, status) != -1) { - UnicodeString hexString = mAmps.group(6, status); - UChar32 val = 0; - for (i=0; i<hexString.length(); i++) { - val = (val << 4) + u_digit(hexString.charAt(i), 16); - } - // TODO: some verification that the character is valid - replacement.setTo(val); - } else if (mAmps.start(7, status) != -1) { - UnicodeString decimalString = mAmps.group(7, status); - UChar32 val = 0; - for (i=0; i<decimalString.length(); i++) { - val = val*10 + u_digit(decimalString.charAt(i), 10); - } - // TODO: some verification that the character is valid - replacement.setTo(val); - } else { - // An unrecognized &entity; Leave it alone. - // TODO: check that it really looks like an entity, and is not some - // random & in the text. - replacement = mAmps.group((int32_t)0, status); - } - mAmps.appendReplacement(result, replacement, status); - } - mAmps.appendTail(result); - s = result; -} - -void -UXMLParser::error(const char *message, UErrorCode &status) { - // TODO: something better here... - const UnicodeString &src=mXMLDecl.input(); - int line = 0; - int ci = 0; - while (ci < fPos && ci>=0) { - ci = src.indexOf((UChar)0x0a, ci+1); - line++; - } - fprintf(stderr, "Error: %s at line %d\n", message, line); - if (U_SUCCESS(status)) { - status = U_PARSE_ERROR; - } -} - -// intern strings like in Java - -const UnicodeString * -UXMLParser::intern(const UnicodeString &s, UErrorCode &errorCode) { - const UHashElement *he=fNames.find(s); - if(he!=NULL) { - // already a known name, return its hashed key pointer - return (const UnicodeString *)he->key.pointer; - } else { - // add this new name and return its hashed key pointer - fNames.puti(s, 0, errorCode); - he=fNames.find(s); - return (const UnicodeString *)he->key.pointer; - } -} - -const UnicodeString * -UXMLParser::findName(const UnicodeString &s) const { - const UHashElement *he=fNames.find(s); - if(he!=NULL) { - // a known name, return its hashed key pointer - return (const UnicodeString *)he->key.pointer; - } else { - // unknown name - return NULL; - } -} - -// UXMLElement ------------------------------------------------------------- *** - -UXMLElement::UXMLElement(const UXMLParser *parser, const UnicodeString *name, UErrorCode &errorCode) : - fParser(parser), - fName(name), - fAttNames(errorCode), - fAttValues(errorCode), - fChildren(errorCode), - fParent(NULL) -{ -} - -UXMLElement::~UXMLElement() { - int i; - // attribute names are owned by the UXMLParser, don't delete them here - for (i=fAttValues.size()-1; i>=0; i--) { - delete (UObject *)fAttValues.elementAt(i); - } - for (i=fChildren.size()-1; i>=0; i--) { - delete (UObject *)fChildren.elementAt(i); - } -} - -const UnicodeString & -UXMLElement::getTagName() const { - return *fName; -} - -UnicodeString -UXMLElement::getText(UBool recurse) const { - UnicodeString text; - appendText(text, recurse); - return text; -} - -void -UXMLElement::appendText(UnicodeString &text, UBool recurse) const { - const UObject *node; - int32_t i, count=fChildren.size(); - for(i=0; i<count; ++i) { - node=(const UObject *)fChildren.elementAt(i); - const UnicodeString *s=dynamic_cast<const UnicodeString *>(node); - if(s!=NULL) { - text.append(*s); - } else if(recurse) /* must be a UXMLElement */ { - ((const UXMLElement *)node)->appendText(text, recurse); - } - } -} - -int32_t -UXMLElement::countAttributes() const { - return fAttNames.size(); -} - -const UnicodeString * -UXMLElement::getAttribute(int32_t i, UnicodeString &name, UnicodeString &value) const { - if(0<=i && i<fAttNames.size()) { - name.setTo(*(const UnicodeString *)fAttNames.elementAt(i)); - value.setTo(*(const UnicodeString *)fAttValues.elementAt(i)); - return &value; // or return (UnicodeString *)fAttValues.elementAt(i); - } else { - return NULL; - } -} - -const UnicodeString * -UXMLElement::getAttribute(const UnicodeString &name) const { - // search for the attribute name by comparing the interned pointer, - // not the string contents - const UnicodeString *p=fParser->findName(name); - if(p==NULL) { - return NULL; // no such attribute seen by the parser at all - } - - int32_t i, count=fAttNames.size(); - for(i=0; i<count; ++i) { - if(p==(const UnicodeString *)fAttNames.elementAt(i)) { - return (const UnicodeString *)fAttValues.elementAt(i); - } - } - return NULL; -} - -int32_t -UXMLElement::countChildren() const { - return fChildren.size(); -} - -const UObject * -UXMLElement::getChild(int32_t i, UXMLNodeType &type) const { - if(0<=i && i<fChildren.size()) { - const UObject *node=(const UObject *)fChildren.elementAt(i); - if(dynamic_cast<const UXMLElement *>(node)!=NULL) { - type=UXML_NODE_TYPE_ELEMENT; - } else { - type=UXML_NODE_TYPE_STRING; - } - return node; - } else { - return NULL; - } -} - -const UXMLElement * -UXMLElement::nextChildElement(int32_t &i) const { - if(i<0) { - return NULL; - } - - const UObject *node; - int32_t count=fChildren.size(); - while(i<count) { - node=(const UObject *)fChildren.elementAt(i++); - const UXMLElement *elem=dynamic_cast<const UXMLElement *>(node); - if(elem!=NULL) { - return elem; - } - } - return NULL; -} - -const UXMLElement * -UXMLElement::getChildElement(const UnicodeString &name) const { - // search for the element name by comparing the interned pointer, - // not the string contents - const UnicodeString *p=fParser->findName(name); - if(p==NULL) { - return NULL; // no such element seen by the parser at all - } - - const UObject *node; - int32_t i, count=fChildren.size(); - for(i=0; i<count; ++i) { - node=(const UObject *)fChildren.elementAt(i); - const UXMLElement *elem=dynamic_cast<const UXMLElement *>(node); - if(elem!=NULL) { - if(p==elem->fName) { - return elem; - } - } - } - return NULL; -} - -U_NAMESPACE_END - -#endif /* !UCONFIG_NO_REGULAR_EXPRESSIONS */ |