From 066fb5dafce71acc93bb04f2a271b43870a6b0bb Mon Sep 17 00:00:00 2001 From: Nat Goodspeed Date: Wed, 13 May 2020 16:37:12 -0400 Subject: DRTVWR-476: Default LLSDNotationFormatter now OPTIONS_PRETTY_BINARY. LLSDNotationFormatter (also LLSDNotationStreamer that uses it, plus operator<<(std::ostream&, const LLSD&) that uses LLSDNotationStreamer) is most useful for displaying LLSD to a human, e.g. for logging. Having the default dump raw binary bytes into the log file is not only suboptimal, it can truncate the output if one of those bytes is '\0'. (This is a problem with the logging subsystem, but that's a story for another day.) Use OPTIONS_PRETTY_BINARY wherever there is a default LLSDFormatter ::EFormatterOptions argument. Also, allow setting LLSDFormatter subclass boolalpha(), realFormat() and format(options) using optional constructor arguments. Naturally, each subclass that supports this must accept and forward these constructor arguments to its LLSDFormatter base class constructor. Fix a couple bugs in LLSDNotationFormatter::format_impl() for an LLSD::Binary value with OPTIONS_PRETTY_BINARY: - The code unconditionally emitted a b(len) type prefix followed by either raw binary or hex, depending on the option flag. OPTIONS_PRETTY_BINARY caused it to emit "0x" before the hex representation of the data. This is wrong in that it can't be read back by either the C++ or the Python LLSD parser. Correct OPTIONS_PRETTY_BINARY formatting consists of b16"hex digits" rather than b(len)"raw bytes". - Although the code did set hex mode, it didn't set either the field width or the fill character, so that a byte value less than 16 would emit a single digit rather than two. Instead of having one LLSDFormatter::format() method with an optional options argument, declare two overloads. The format() overload without options passes the mOptions data member to the overload accepting options. Refactor the LLSDFormatter family, hoisting the recursive format_impl() method (accepting level) to a pure virtual method at LLSDFormatter base-class level. Most subclasses therefore need not override either base-class format() method, only format_impl(). In fact the short format() overload isn't even virtual. Consistently use LLSDFormatter::EFormatterOptions enum as the options parameter wherever such options are accepted. --- indra/llcommon/llsdserialize.h | 100 +++++++++++++++++++++++++---------------- 1 file changed, 61 insertions(+), 39 deletions(-) (limited to 'indra/llcommon/llsdserialize.h') diff --git a/indra/llcommon/llsdserialize.h b/indra/llcommon/llsdserialize.h index fe0f4443ef..d6079fd9fa 100644 --- a/indra/llcommon/llsdserialize.h +++ b/indra/llcommon/llsdserialize.h @@ -435,7 +435,8 @@ public: /** * @brief Constructor */ - LLSDFormatter(); + LLSDFormatter(bool boolAlpha=false, const std::string& realFormat="", + EFormatterOptions options=OPTIONS_PRETTY_BINARY); /** * @brief Set the boolean serialization format. @@ -459,15 +460,37 @@ public: void realFormat(const std::string& format); /** - * @brief Call this method to format an LLSD to a stream. + * @brief Call this method to format an LLSD to a stream with options as + * set by the constructor. + * + * @param data The data to write. + * @param ostr The destination stream for the data. + * @return Returns The number of LLSD objects formatted out + */ + S32 format(const LLSD& data, std::ostream& ostr) const; + + /** + * @brief Call this method to format an LLSD to a stream, passing options + * explicitly. * * @param data The data to write. * @param ostr The destination stream for the data. - * @return Returns The number of LLSD objects fomatted out + * @param options OPTIONS_NONE to emit LLSD::Binary as raw bytes + * @return Returns The number of LLSD objects formatted out */ - virtual S32 format(const LLSD& data, std::ostream& ostr, U32 options = LLSDFormatter::OPTIONS_NONE) const = 0; + virtual S32 format(const LLSD& data, std::ostream& ostr, EFormatterOptions options) const; protected: + /** + * @brief Implementation to format the data. This is called recursively. + * + * @param data The data to write. + * @param ostr The destination stream for the data. + * @return Returns The number of LLSD objects formatted out + */ + virtual S32 format_impl(const LLSD& data, std::ostream& ostr, EFormatterOptions options, + U32 level) const = 0; + /** * @brief Helper method which appropriately obeys the real format. * @@ -476,9 +499,9 @@ protected: */ void formatReal(LLSD::Real real, std::ostream& ostr) const; -protected: bool mBoolAlpha; std::string mRealFormat; + EFormatterOptions mOptions; }; @@ -498,7 +521,8 @@ public: /** * @brief Constructor */ - LLSDNotationFormatter(); + LLSDNotationFormatter(bool boolAlpha=false, const std::string& realFormat="", + EFormatterOptions options=OPTIONS_PRETTY_BINARY); /** * @brief Helper static method to return a notation escaped string @@ -512,25 +536,16 @@ public: */ static std::string escapeString(const std::string& in); - /** - * @brief Call this method to format an LLSD to a stream. - * - * @param data The data to write. - * @param ostr The destination stream for the data. - * @return Returns The number of LLSD objects fomatted out - */ - virtual S32 format(const LLSD& data, std::ostream& ostr, U32 options = LLSDFormatter::OPTIONS_NONE) const; - protected: - /** * @brief Implementation to format the data. This is called recursively. * * @param data The data to write. * @param ostr The destination stream for the data. - * @return Returns The number of LLSD objects fomatted out + * @return Returns The number of LLSD objects formatted out */ - S32 format_impl(const LLSD& data, std::ostream& ostr, U32 options, U32 level) const; + S32 format_impl(const LLSD& data, std::ostream& ostr, EFormatterOptions options, + U32 level) const override; }; @@ -550,7 +565,8 @@ public: /** * @brief Constructor */ - LLSDXMLFormatter(); + LLSDXMLFormatter(bool boolAlpha=false, const std::string& realFormat="", + EFormatterOptions options=OPTIONS_PRETTY_BINARY); /** * @brief Helper static method to return an xml escaped string @@ -565,20 +581,23 @@ public: * * @param data The data to write. * @param ostr The destination stream for the data. - * @return Returns The number of LLSD objects fomatted out + * @return Returns The number of LLSD objects formatted out */ - virtual S32 format(const LLSD& data, std::ostream& ostr, U32 options = LLSDFormatter::OPTIONS_NONE) const; + S32 format(const LLSD& data, std::ostream& ostr, EFormatterOptions options) const override; -protected: + // also pull down base-class format() method that isn't overridden + using LLSDFormatter::format; +protected: /** * @brief Implementation to format the data. This is called recursively. * * @param data The data to write. * @param ostr The destination stream for the data. - * @return Returns The number of LLSD objects fomatted out + * @return Returns The number of LLSD objects formatted out */ - S32 format_impl(const LLSD& data, std::ostream& ostr, U32 options, U32 level) const; + S32 format_impl(const LLSD& data, std::ostream& ostr, EFormatterOptions options, + U32 level) const override; }; @@ -618,18 +637,20 @@ public: /** * @brief Constructor */ - LLSDBinaryFormatter(); + LLSDBinaryFormatter(bool boolAlpha=false, const std::string& realFormat="", + EFormatterOptions options=OPTIONS_PRETTY_BINARY); +protected: /** - * @brief Call this method to format an LLSD to a stream. + * @brief Implementation to format the data. This is called recursively. * * @param data The data to write. * @param ostr The destination stream for the data. - * @return Returns The number of LLSD objects fomatted out + * @return Returns The number of LLSD objects formatted out */ - virtual S32 format(const LLSD& data, std::ostream& ostr, U32 options = LLSDFormatter::OPTIONS_NONE) const; + S32 format_impl(const LLSD& data, std::ostream& ostr, EFormatterOptions options, + U32 level) const override; -protected: /** * @brief Helper method to serialize strings * @@ -669,7 +690,8 @@ public: /** * @brief Constructor */ - LLSDOStreamer(const LLSD& data, U32 options = LLSDFormatter::OPTIONS_NONE) : + LLSDOStreamer(const LLSD& data, + LLSDFormatter::EFormatterOptions options=LLSDFormatter::OPTIONS_PRETTY_BINARY) : mSD(data), mOptions(options) {} /** @@ -681,17 +703,17 @@ public: * @return Returns the stream passed in after streaming mSD. */ friend std::ostream& operator<<( - std::ostream& str, - const LLSDOStreamer& formatter) + std::ostream& out, + const LLSDOStreamer& streamer) { LLPointer f = new Formatter; - f->format(formatter.mSD, str, formatter.mOptions); - return str; + f->format(streamer.mSD, out, streamer.mOptions); + return out; } protected: LLSD mSD; - U32 mOptions; + LLSDFormatter::EFormatterOptions mOptions; }; typedef LLSDOStreamer LLSDNotationStreamer; @@ -724,7 +746,7 @@ public: * Generic in/outs */ static void serialize(const LLSD& sd, std::ostream& str, ELLSD_Serialize, - U32 options = LLSDFormatter::OPTIONS_NONE); + LLSDFormatter::EFormatterOptions options=LLSDFormatter::OPTIONS_PRETTY_BINARY); /** * @brief Examine a stream, and parse 1 sd object out based on contents. @@ -752,9 +774,9 @@ public: static S32 toPrettyBinaryNotation(const LLSD& sd, std::ostream& str) { LLPointer f = new LLSDNotationFormatter; - return f->format(sd, str, - LLSDFormatter::OPTIONS_PRETTY | - LLSDFormatter::OPTIONS_PRETTY_BINARY); + return f->format(sd, str, + LLSDFormatter::EFormatterOptions(LLSDFormatter::OPTIONS_PRETTY | + LLSDFormatter::OPTIONS_PRETTY_BINARY)); } static S32 fromNotation(LLSD& sd, std::istream& str, S32 max_bytes) { -- cgit v1.2.3