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Json::CharReaderBuilder Class Reference

Build a CharReader implementation. More...

#include <json/reader.h>

Inherits Json::CharReader::Factory.

Public Member Functions

 CharReaderBuilder ()
 
 ~CharReaderBuilder ()
 
CharReadernewCharReader () const
 Allocate a CharReader via operator new(). More...
 
bool validate (Json::Value *invalid) const
 
Valueoperator[] (std::string key)
 A simple way to update a specific setting. More...
 
- Public Member Functions inherited from Json::CharReader::Factory
virtual ~Factory ()
 

Static Public Member Functions

static void setDefaults (Json::Value *settings)
 Called by ctor, but you can use this to reset settings_. More...
 
static void strictMode (Json::Value *settings)
 Same as old Features::strictMode(). More...
 

Public Attributes

Json::Value settings_
 Configuration of this builder. More...
 

Detailed Description

Build a CharReader implementation.

Usage:

using namespace Json;
builder["collectComments"] = false;
Value value;
bool ok = parseFromStream(builder, std::cin, &value, &errs);

Definition at line 293 of file reader.h.

Constructor & Destructor Documentation

Json::CharReaderBuilder::CharReaderBuilder ( )

Definition at line 1919 of file json_reader.cpp.

Json::CharReaderBuilder::~CharReaderBuilder ( )

Definition at line 1923 of file json_reader.cpp.

Member Function Documentation

CharReader * Json::CharReaderBuilder::newCharReader ( ) const
virtual

Allocate a CharReader via operator new().

Exceptions
std::exceptionif something goes wrong (e.g. invalid settings)

Implements Json::CharReader::Factory.

Definition at line 1925 of file json_reader.cpp.

Value & Json::CharReaderBuilder::operator[] ( std::string  key)

A simple way to update a specific setting.

Definition at line 1971 of file json_reader.cpp.

void Json::CharReaderBuilder::setDefaults ( Json::Value settings)
static

Called by ctor, but you can use this to reset settings_.

Precondition
'settings' != NULL (but Json::null is fine)
Remarks
Defaults:
(*settings)["collectComments"] = true;
(*settings)["allowComments"] = true;
(*settings)["strictRoot"] = false;
(*settings)["allowDroppedNullPlaceholders"] = false;
(*settings)["allowNumericKeys"] = false;
(*settings)["allowSingleQuotes"] = false;
(*settings)["stackLimit"] = 1000;
(*settings)["failIfExtra"] = false;
(*settings)["rejectDupKeys"] = false;
(*settings)["allowSpecialFloats"] = false;

[CharReaderBuilderDefaults]

[CharReaderBuilderDefaults]

Definition at line 1991 of file json_reader.cpp.

void Json::CharReaderBuilder::strictMode ( Json::Value settings)
static

Same as old Features::strictMode().

Precondition
'settings' != NULL (but Json::null is fine)
Remarks
Defaults:
(*settings)["allowComments"] = false;
(*settings)["strictRoot"] = true;
(*settings)["allowDroppedNullPlaceholders"] = false;
(*settings)["allowNumericKeys"] = false;
(*settings)["allowSingleQuotes"] = false;
(*settings)["stackLimit"] = 1000;
(*settings)["failIfExtra"] = true;
(*settings)["rejectDupKeys"] = true;
(*settings)["allowSpecialFloats"] = false;

[CharReaderBuilderStrictMode]

[CharReaderBuilderStrictMode]

Definition at line 1976 of file json_reader.cpp.

bool Json::CharReaderBuilder::validate ( Json::Value invalid) const
Returns
true if 'settings' are legal and consistent; otherwise, indicate bad settings via 'invalid'.

Definition at line 1954 of file json_reader.cpp.

References Json::getValidReaderKeys(), JSONCPP_STRING, and Json::Value::size().

Member Data Documentation

Json::Value Json::CharReaderBuilder::settings_

Configuration of this builder.

These are case-sensitive. Available settings (case-sensitive):

  • "collectComments": false or true
    • true to collect comment and allow writing them back during serialization, false to discard comments. This parameter is ignored if allowComments is false.
  • "allowComments": false or true
    • true if comments are allowed.
  • "strictRoot": false or true
    • true if root must be either an array or an object value
  • "allowDroppedNullPlaceholders": false or true
  • "allowNumericKeys": false or true
    • true if numeric object keys are allowed.
  • "allowSingleQuotes": false or true
    • true if '' are allowed for strings (both keys and values)
  • "stackLimit": integer
    • Exceeding stackLimit (recursive depth of readValue()) will cause an exception.
    • This is a security issue (seg-faults caused by deeply nested JSON), so the default is low.
  • "failIfExtra": false or true
    • If true, parse() returns false when extra non-whitespace trails the JSON value in the input string.
  • "rejectDupKeys": false or true
    • If true, parse() returns false when a key is duplicated within an object.
  • "allowSpecialFloats": false or true
    • If true, special float values (NaNs and infinities) are allowed and their values are lossfree restorable.

You can examine 'settings_` yourself to see the defaults. You can also write and read them just like any JSON Value.

See also
setDefaults()

Definition at line 333 of file reader.h.


The documentation for this class was generated from the following files: