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🔨 added a SAX-DOM-Parser

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Niels Lohmann 2018-02-26 23:39:23 +01:00
parent 21352c4d8e
commit 3ff9455332
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GPG key ID: 7F3CEA63AE251B69
7 changed files with 177 additions and 44 deletions
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15
include/nlohmann/detail/input/json_sax.hpp
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@ -20,6 +20,9 @@ struct json_sax
/// type for floating-point numbers
using number_float_t = typename BasicJsonType::number_float_t;
/// constant to indicate that no size limit is given for array or object
static constexpr auto no_limit = std::size_t(-1);
/*!
@brief a null value was read
@return whether parsing should proceed
@ -60,22 +63,22 @@ struct json_sax
@param[in] val string value
@return whether parsing should proceed
*/
virtual bool string(const std::string& val) = 0;
virtual bool string(std::string&& val) = 0;
/*!
@brief the beginning of an object was read
@param[in] elements number of object elements or -1 if unknown
@param[in] elements number of object elements or no_limit if unknown
@return whether parsing should proceed
@note binary formats may report the number of elements
*/
virtual bool start_object(std::size_t elements) = 0;
virtual bool start_object(std::size_t elements = no_limit) = 0;
/*!
@brief an object key was read
@param[in] val object key
@return whether parsing should proceed
*/
virtual bool key(const std::string& val) = 0;
virtual bool key(std::string&& val) = 0;
/*!
@brief the end of an object was read
@ -85,11 +88,11 @@ struct json_sax
/*!
@brief the beginning of an array was read
@param[in] elements number of array elements or -1 if unknown
@param[in] elements number of array elements or no_limit if unknown
@return whether parsing should proceed
@note binary formats may report the number of elements
*/
virtual bool start_array(std::size_t elements) = 0;
virtual bool start_array(std::size_t elements = no_limit) = 0;
/*!
@brief the end of an array was read