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authorTiger Wang <ziwei.tiger@hotmail.co.uk>2015-05-09 02:22:33 +0200
committerTiger Wang <ziwei.tiger@hotmail.co.uk>2015-07-10 00:10:51 +0200
commitccfe04a0a2b64c2bdfd10c4a0aadf61847001eae (patch)
treed7b0e9aab9f4c81c58121c5b06411b25a2efba00 /lib/jsoncpp/include/json/reader.h
parentUpdated luaexpat (diff)
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-rw-r--r--lib/jsoncpp/include/json/reader.h196
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diff --git a/lib/jsoncpp/include/json/reader.h b/lib/jsoncpp/include/json/reader.h
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--- a/lib/jsoncpp/include/json/reader.h
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-#ifndef CPPTL_JSON_READER_H_INCLUDED
-# define CPPTL_JSON_READER_H_INCLUDED
-
-# include "features.h"
-# include "value.h"
-# include <deque>
-# include <stack>
-# include <string>
-# include <iostream>
-
-namespace Json {
-
- /** \brief Unserialize a <a HREF="http://www.json.org">JSON</a> document into a Value.
- *
- */
- class JSON_API Reader
- {
- public:
- typedef char Char;
- typedef const Char *Location;
-
- /** \brief Constructs a Reader allowing all features
- * for parsing.
- */
- Reader();
-
- /** \brief Constructs a Reader allowing the specified feature set
- * for parsing.
- */
- Reader( const Features &features );
-
- /** \brief Read a Value from a <a HREF="http://www.json.org">JSON</a> document.
- * \param document UTF-8 encoded string containing the document to read.
- * \param root [out] Contains the root value of the document if it was
- * successfully parsed.
- * \param collectComments \c true to collect comment and allow writing them back during
- * serialization, \c false to discard comments.
- * This parameter is ignored if Features::allowComments_
- * is \c false.
- * \return \c true if the document was successfully parsed, \c false if an error occurred.
- */
- bool parse( const std::string &document,
- Value &root,
- bool collectComments = true );
-
- /** \brief Read a Value from a <a HREF="http://www.json.org">JSON</a> document.
- * \param document UTF-8 encoded string containing the document to read.
- * \param root [out] Contains the root value of the document if it was
- * successfully parsed.
- * \param collectComments \c true to collect comment and allow writing them back during
- * serialization, \c false to discard comments.
- * This parameter is ignored if Features::allowComments_
- * is \c false.
- * \return \c true if the document was successfully parsed, \c false if an error occurred.
- */
- bool parse( const char *beginDoc, const char *endDoc,
- Value &root,
- bool collectComments = true );
-
- /// \brief Parse from input stream.
- /// \see Json::operator>>(std::istream&, Json::Value&).
- bool parse( std::istream &is,
- Value &root,
- bool collectComments = true );
-
- /** \brief Returns a user friendly string that list errors in the parsed document.
- * \return Formatted error message with the list of errors with their location in
- * the parsed document. An empty string is returned if no error occurred
- * during parsing.
- */
- std::string getFormatedErrorMessages() const;
-
- private:
- enum TokenType
- {
- tokenEndOfStream = 0,
- tokenObjectBegin,
- tokenObjectEnd,
- tokenArrayBegin,
- tokenArrayEnd,
- tokenString,
- tokenNumber,
- tokenTrue,
- tokenFalse,
- tokenNull,
- tokenArraySeparator,
- tokenMemberSeparator,
- tokenComment,
- tokenError
- };
-
- class Token
- {
- public:
- TokenType type_;
- Location start_;
- Location end_;
- };
-
- class ErrorInfo
- {
- public:
- Token token_;
- std::string message_;
- Location extra_;
- };
-
- typedef std::deque<ErrorInfo> Errors;
-
- bool expectToken( TokenType type, Token &token, const char *message );
- bool readToken( Token &token );
- void skipSpaces();
- bool match( Location pattern,
- int patternLength );
- bool readComment();
- bool readCStyleComment();
- bool readCppStyleComment();
- bool readString();
- void readNumber();
- bool readValue();
- bool readObject( Token &token );
- bool readArray( Token &token );
- bool decodeNumber( Token &token );
- bool decodeString( Token &token );
- bool decodeString( Token &token, std::string &decoded );
- bool decodeDouble( Token &token );
- bool decodeUnicodeCodePoint( Token &token,
- Location &current,
- Location end,
- unsigned int &unicode );
- bool decodeUnicodeEscapeSequence( Token &token,
- Location &current,
- Location end,
- unsigned int &unicode );
- bool addError( const std::string &message,
- Token &token,
- Location extra = 0 );
- bool recoverFromError( TokenType skipUntilToken );
- bool addErrorAndRecover( const std::string &message,
- Token &token,
- TokenType skipUntilToken );
- void skipUntilSpace();
- Value &currentValue();
- Char getNextChar();
- void getLocationLineAndColumn( Location location,
- int &line,
- int &column ) const;
- std::string getLocationLineAndColumn( Location location ) const;
- void addComment( Location begin,
- Location end,
- CommentPlacement placement );
- void skipCommentTokens( Token &token );
-
- typedef std::stack<Value *> Nodes;
- Nodes nodes_;
- Errors errors_;
- std::string document_;
- Location begin_;
- Location end_;
- Location current_;
- Location lastValueEnd_;
- Value *lastValue_;
- std::string commentsBefore_;
- Features features_;
- bool collectComments_;
- };
-
- /** \brief Read from 'sin' into 'root'.
-
- Always keep comments from the input JSON.
-
- This can be used to read a file into a particular sub-object.
- For example:
- \code
- Json::Value root;
- cin >> root["dir"]["file"];
- cout << root;
- \endcode
- Result:
- \verbatim
- {
- "dir": {
- "file": {
- // The input stream JSON would be nested here.
- }
- }
- }
- \endverbatim
- \throw std::exception on parse error.
- \see Json::operator<<()
- */
- std::istream& operator>>( std::istream&, Value& );
-
-} // namespace Json
-
-#endif // CPPTL_JSON_READER_H_INCLUDED