1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/include/xml/SkXMLParser.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,155 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2006 The Android Open Source Project
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +
1.13 +#ifndef SkXMLParser_DEFINED
1.14 +#define SkXMLParser_DEFINED
1.15 +
1.16 +#include "SkString.h"
1.17 +
1.18 +class SkStream;
1.19 +
1.20 +class SkDOM;
1.21 +struct SkDOMNode;
1.22 +
1.23 +class SkXMLParserError {
1.24 +public:
1.25 + enum ErrorCode {
1.26 + kNoError,
1.27 + kEmptyFile,
1.28 + kUnknownElement,
1.29 + kUnknownAttributeName,
1.30 + kErrorInAttributeValue,
1.31 + kDuplicateIDs,
1.32 + kUnknownError
1.33 + };
1.34 +
1.35 + SkXMLParserError();
1.36 + virtual ~SkXMLParserError();
1.37 + ErrorCode getErrorCode() const { return fCode; }
1.38 + virtual void getErrorString(SkString* str) const;
1.39 + int getLineNumber() const { return fLineNumber; }
1.40 + int getNativeCode() const { return fNativeCode; }
1.41 + bool hasError() const { return fCode != kNoError || fNativeCode != -1; }
1.42 + bool hasNoun() const { return fNoun.size() > 0; }
1.43 + void reset();
1.44 + void setCode(ErrorCode code) { fCode = code; }
1.45 + void setNoun(const SkString& str) { fNoun.set(str); }
1.46 + void setNoun(const char* ch) { fNoun.set(ch); }
1.47 + void setNoun(const char* ch, size_t len) { fNoun.set(ch, len); }
1.48 +protected:
1.49 + ErrorCode fCode;
1.50 +private:
1.51 + int fLineNumber;
1.52 + int fNativeCode;
1.53 + SkString fNoun;
1.54 + friend class SkXMLParser;
1.55 +};
1.56 +
1.57 +class SkXMLParser {
1.58 +public:
1.59 + SkXMLParser(SkXMLParserError* parserError = NULL);
1.60 + virtual ~SkXMLParser();
1.61 +
1.62 + /** Returns true for success
1.63 + */
1.64 + bool parse(const char doc[], size_t len);
1.65 + bool parse(SkStream& docStream);
1.66 + bool parse(const SkDOM&, const SkDOMNode*);
1.67 +
1.68 + static void GetNativeErrorString(int nativeErrorCode, SkString* str);
1.69 +
1.70 +protected:
1.71 + // override in subclasses; return true to stop parsing
1.72 + virtual bool onStartElement(const char elem[]);
1.73 + virtual bool onAddAttribute(const char name[], const char value[]);
1.74 + virtual bool onEndElement(const char elem[]);
1.75 + virtual bool onText(const char text[], int len);
1.76 +
1.77 +public:
1.78 + // public for ported implementation, not meant for clients to call
1.79 + virtual bool startElement(const char elem[]);
1.80 + virtual bool addAttribute(const char name[], const char value[]);
1.81 + virtual bool endElement(const char elem[]);
1.82 + virtual bool text(const char text[], int len);
1.83 + void* fParser;
1.84 +protected:
1.85 + SkXMLParserError* fError;
1.86 +private:
1.87 + void reportError(void* parser);
1.88 +};
1.89 +
1.90 +#if 0
1.91 +class SkXMLPullParser {
1.92 +public:
1.93 + SkXMLPullParser();
1.94 + explicit SkXMLPullParser(SkStream*);
1.95 + virtual ~SkXMLPullParser();
1.96 +
1.97 + SkStream* getStream() const { return fStream; }
1.98 + SkStream* setStream(SkStream* stream);
1.99 +
1.100 + enum EventType {
1.101 + ERROR = -1,
1.102 + START_DOCUMENT,
1.103 + END_DOCUMENT,
1.104 + START_TAG,
1.105 + END_TAG,
1.106 + TEXT,
1.107 + CDSECT,
1.108 + ENTITY_REF,
1.109 + IGNORABLE_WHITESPACE,
1.110 + PROCESSING_INSTRUCTION,
1.111 + COMMENT,
1.112 + DOCDECL
1.113 + };
1.114 +
1.115 + EventType nextToken();
1.116 + EventType getEventType() const { return fCurr.fEventType; }
1.117 +
1.118 + struct AttrInfo {
1.119 + const char* fName;
1.120 + const char* fValue;
1.121 + };
1.122 +
1.123 + int getDepth() const { return fDepth; }
1.124 + const char* getName();
1.125 + int getAttributeCount();
1.126 + void getAttributeInfo(int, AttrInfo*);
1.127 + const char* getText();
1.128 + bool isWhitespace();
1.129 +
1.130 +protected:
1.131 + virtual bool onEntityReplacement(const char name[],
1.132 + SkString* replacement);
1.133 +
1.134 +public:
1.135 + struct Curr {
1.136 + EventType fEventType;
1.137 + const char* fName;
1.138 + AttrInfo* fAttrInfos;
1.139 + int fAttrInfoCount;
1.140 + bool fIsWhitespace;
1.141 + };
1.142 +
1.143 +private:
1.144 + // implemented in the porting layer
1.145 + bool onInit(); // return false on failure
1.146 + EventType onNextToken();
1.147 + void onExit();
1.148 +
1.149 + SkStream* fStream;
1.150 + Curr fCurr;
1.151 + int fDepth;
1.152 +
1.153 + struct Impl;
1.154 + Impl* fImpl;
1.155 +};
1.156 +#endif
1.157 +
1.158 +#endif
