mirror of
https://github.com/vcmi/vcmi.git
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dd73573c5c
- reorganized internal filesystem structure - all files from one mod are now grouped in same FS node - modhandler will now calculate crc32 checksum for each mod - modhandler now knows validation status of each mod todo - use checksum to determine mods that have not changed since last start and disable validation for them.
127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/*
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* JsonDetail.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#include "JsonNode.h"
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class JsonWriter
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{
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//prefix for each line (tabulation)
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std::string prefix;
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std::ostream &out;
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public:
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template<typename Iterator>
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void writeContainer(Iterator begin, Iterator end);
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void writeEntry(JsonMap::const_iterator entry);
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void writeEntry(JsonVector::const_iterator entry);
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void writeString(const std::string &string);
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void writeNode(const JsonNode &node);
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JsonWriter(std::ostream &output, const JsonNode &node);
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};
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//Tiny string class that uses const char* as data for speed, members are private
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//for ease of debugging and some compatibility with std::string
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class constString
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{
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const char *data;
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const size_t datasize;
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public:
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constString(const char * inputString, size_t stringSize):
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data(inputString),
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datasize(stringSize)
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{
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}
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inline size_t size() const
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{
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return datasize;
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};
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inline const char& operator[] (size_t position)
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{
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assert (position < datasize);
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return data[position];
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}
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};
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//Internal class for string -> JsonNode conversion
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class JsonParser
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{
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std::string errors; // Contains description of all encountered errors
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constString input; // Input data
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ui32 lineCount; // Currently parsed line, starting from 1
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size_t lineStart; // Position of current line start
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size_t pos; // Current position of parser
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//Helpers
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bool extractEscaping(std::string &str);
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bool extractLiteral(const std::string &literal);
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bool extractString(std::string &string);
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bool extractWhitespace(bool verbose = true);
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bool extractSeparator();
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bool extractElement(JsonNode &node, char terminator);
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//Methods for extracting JSON data
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bool extractArray(JsonNode &node);
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bool extractFalse(JsonNode &node);
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bool extractFloat(JsonNode &node);
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bool extractNull(JsonNode &node);
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bool extractString(JsonNode &node);
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bool extractStruct(JsonNode &node);
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bool extractTrue(JsonNode &node);
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bool extractValue(JsonNode &node);
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//Add error\warning message to list
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bool error(const std::string &message, bool warning=false);
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public:
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JsonParser(const char * inputString, size_t stringSize);
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/// do actual parsing. filename is name of file that will printed to console if any errors were found
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JsonNode parse(std::string fileName);
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/// returns true if parsing was successfull
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bool isValid();
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};
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//Internal class for Json validation. Mostly compilant with json-schema v4 draft
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namespace Validation
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{
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/// struct used to pass data around during validation
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struct ValidationData
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{
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/// path from root node to current one.
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/// JsonNode is used as variant - either string (name of node) or as float (index in list)
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std::vector<JsonNode> currentPath;
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/// Stack of used schemas. Last schema is the one used currently.
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/// May contain multiple items in case if remote references were found
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std::vector<std::string> usedSchemas;
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/// generates error message
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std::string makeErrorMessage(const std::string &message);
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};
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typedef std::function<std::string(const JsonNode &)> TFormatValidator;
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typedef std::unordered_map<std::string, TFormatValidator> TFormatMap;
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typedef std::function<std::string(ValidationData &, const JsonNode &, const JsonNode &, const JsonNode &)> TFieldValidator;
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typedef std::unordered_map<std::string, TFieldValidator> TValidatorMap;
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/// map of known fields in schema
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const TValidatorMap & getKnownFieldsFor(JsonNode::JsonType type);
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const TFormatMap & getKnownFormats();
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std::string check(std::string schemaName, const JsonNode & data);
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std::string check(std::string schemaName, const JsonNode & data, ValidationData & validator);
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std::string check(const JsonNode & schema, const JsonNode & data, ValidationData & validator);
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}
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