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Allow changing only JSON output whitespace options #887

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14 changes: 12 additions & 2 deletions include/cereal/archives/json.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -123,7 +123,7 @@ namespace cereal
static Options Default(){ return Options(); }

//! Default options with no indentation
static Options NoIndent(){ return Options( JSONWriter::kDefaultMaxDecimalPlaces, IndentChar::space, 0 ); }
static Options NoIndent(){ return Options( IndentChar::space, 0 ); }

//! The character to use for indenting
enum class IndentChar : char
Expand All @@ -139,13 +139,23 @@ namespace cereal
@param indentChar The type of character to indent with
@param indentLength The number of indentChar to use for indentation
(0 corresponds to no indentation) */
explicit Options( int precision = JSONWriter::kDefaultMaxDecimalPlaces,
explicit Options( int precision,
IndentChar indentChar = IndentChar::space,
unsigned int indentLength = 4 ) :
itsPrecision( precision ),
itsIndentChar( static_cast<char>(indentChar) ),
itsIndentLength( indentLength ) { }

//! Specify specific options for the JSONOutputArchive
/*! @param indentChar The type of character to indent with
@param indentLength The number of indentChar to use for indentation
(0 corresponds to no indentation) */
explicit Options( IndentChar indentChar = IndentChar::space,
unsigned int indentLength = 4 ) :
itsPrecision( JSONWriter::kDefaultMaxDecimalPlaces ),
itsIndentChar( static_cast<char>(indentChar) ),
itsIndentLength( indentLength ) { }

private:
friend class JSONOutputArchive;
int itsPrecision;
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