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author ImJezze <jezze@gmx.net>2015-07-20 08:11:41 +0200
committer ImJezze <jezze@gmx.net>2015-07-20 08:11:41 +0200
commit4bcb0c13f50ddb1cd3fd0341b4bb31d9c3c7fc7a (patch)
tree55eccacfca0e69435d0d4e6615205310ca11f271 /3rdparty/jsoncpp/src/lib_json/json_writer.cpp
parentd132946c6f45aa8d271c6180e86f72dd08243048 (diff)
parent229785f695b26c702c8490792611f59d0366a933 (diff)
Merge pull request #5 from mamedev/master
Sync to base master
Diffstat (limited to '3rdparty/jsoncpp/src/lib_json/json_writer.cpp')
-rw-r--r--3rdparty/jsoncpp/src/lib_json/json_writer.cpp642
1 files changed, 563 insertions, 79 deletions
diff --git a/3rdparty/jsoncpp/src/lib_json/json_writer.cpp b/3rdparty/jsoncpp/src/lib_json/json_writer.cpp
index 5113c38be1d..2f940c8a43f 100644
--- a/3rdparty/jsoncpp/src/lib_json/json_writer.cpp
+++ b/3rdparty/jsoncpp/src/lib_json/json_writer.cpp
@@ -7,15 +7,35 @@
#include <json/writer.h>
#include "json_tool.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
-#include <utility>
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-#include <sstream>
#include <iomanip>
-#include <math.h>
+#include <memory>
+#include <sstream>
+#include <utility>
+#include <set>
+#include <cassert>
+#include <cstring>
+#include <cstdio>
+
+#if defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1800 // Between VC++ 6.0 and VC++ 11.0
+#include <float.h>
+#define isfinite _finite
+#elif defined(__sun) && defined(__SVR4) //Solaris
+#include <ieeefp.h>
+#define isfinite finite
+#else
+#include <cmath>
+#define isfinite std::isfinite
+#endif
#if defined(_MSC_VER) && _MSC_VER < 1500 // VC++ 8.0 and below
+#define snprintf _snprintf
+#elif defined(__ANDROID__)
+#define snprintf snprintf
+#elif __cplusplus >= 201103L
+#define snprintf std::snprintf
+#endif
+
+#if defined(__BORLANDC__)
#include <float.h>
#define isfinite _finite
#define snprintf _snprintf
@@ -26,13 +46,14 @@
#pragma warning(disable : 4996)
#endif
-#if defined(__sun) && defined(__SVR4) //Solaris
-#include <ieeefp.h>
-#define isfinite finite
-#endif
-
namespace Json {
+#if __cplusplus >= 201103L
+typedef std::unique_ptr<StreamWriter> StreamWriterPtr;
+#else
+typedef std::auto_ptr<StreamWriter> StreamWriterPtr;
+#endif
+
static bool containsControlCharacter(const char* str) {
while (*str) {
if (isControlCharacter(*(str++)))
@@ -41,6 +62,16 @@ static bool containsControlCharacter(const char* str) {
return false;
}
+static bool containsControlCharacter0(const char* str, unsigned len) {
+ char const* end = str + len;
+ while (end != str) {
+ if (isControlCharacter(*str) || 0==*str)
+ return true;
+ ++str;
+ }
+ return false;
+}
+
std::string valueToString(LargestInt value) {
UIntToStringBuffer buffer;
char* current = buffer + sizeof(buffer);
@@ -175,6 +206,84 @@ std::string valueToQuotedString(const char* value) {
return result;
}
+// https://github.com/upcaste/upcaste/blob/master/src/upcore/src/cstring/strnpbrk.cpp
+static char const* strnpbrk(char const* s, char const* accept, size_t n) {
+ assert((s || !n) && accept);
+
+ char const* const end = s + n;
+ for (char const* cur = s; cur < end; ++cur) {
+ int const c = *cur;
+ for (char const* a = accept; *a; ++a) {
+ if (*a == c) {
+ return cur;
+ }
+ }
+ }
+ return NULL;
+}
+static std::string valueToQuotedStringN(const char* value, unsigned length) {
+ if (value == NULL)
+ return "";
+ // Not sure how to handle unicode...
+ if (strnpbrk(value, "\"\\\b\f\n\r\t", length) == NULL &&
+ !containsControlCharacter0(value, length))
+ return std::string("\"") + value + "\"";
+ // We have to walk value and escape any special characters.
+ // Appending to std::string is not efficient, but this should be rare.
+ // (Note: forward slashes are *not* rare, but I am not escaping them.)
+ std::string::size_type maxsize =
+ length * 2 + 3; // allescaped+quotes+NULL
+ std::string result;
+ result.reserve(maxsize); // to avoid lots of mallocs
+ result += "\"";
+ char const* end = value + length;
+ for (const char* c = value; c != end; ++c) {
+ switch (*c) {
+ case '\"':
+ result += "\\\"";
+ break;
+ case '\\':
+ result += "\\\\";
+ break;
+ case '\b':
+ result += "\\b";
+ break;
+ case '\f':
+ result += "\\f";
+ break;
+ case '\n':
+ result += "\\n";
+ break;
+ case '\r':
+ result += "\\r";
+ break;
+ case '\t':
+ result += "\\t";
+ break;
+ // case '/':
+ // Even though \/ is considered a legal escape in JSON, a bare
+ // slash is also legal, so I see no reason to escape it.
+ // (I hope I am not misunderstanding something.)
+ // blep notes: actually escaping \/ may be useful in javascript to avoid </
+ // sequence.
+ // Should add a flag to allow this compatibility mode and prevent this
+ // sequence from occurring.
+ default:
+ if ((isControlCharacter(*c)) || (*c == 0)) {
+ std::ostringstream oss;
+ oss << "\\u" << std::hex << std::uppercase << std::setfill('0')
+ << std::setw(4) << static_cast<int>(*c);
+ result += oss.str();
+ } else {
+ result += *c;
+ }
+ break;
+ }
+ }
+ result += "\"";
+ return result;
+}
+
// Class Writer
// //////////////////////////////////////////////////////////////////
Writer::~Writer() {}
@@ -216,8 +325,14 @@ void FastWriter::writeValue(const Value& value) {
document_ += valueToString(value.asDouble());
break;
case stringValue:
- document_ += valueToQuotedString(value.asCString());
+ {
+ // Is NULL possible for value.string_?
+ char const* str;
+ char const* end;
+ bool ok = value.getString(&str, &end);
+ if (ok) document_ += valueToQuotedStringN(str, static_cast<unsigned>(end-str));
break;
+ }
case booleanValue:
document_ += valueToString(value.asBool());
break;
@@ -239,7 +354,7 @@ void FastWriter::writeValue(const Value& value) {
const std::string& name = *it;
if (it != members.begin())
document_ += ',';
- document_ += valueToQuotedString(name.c_str());
+ document_ += valueToQuotedStringN(name.data(), static_cast<unsigned>(name.length()));
document_ += yamlCompatiblityEnabled_ ? ": " : ":";
writeValue(value[name]);
}
@@ -280,8 +395,15 @@ void StyledWriter::writeValue(const Value& value) {
pushValue(valueToString(value.asDouble()));
break;
case stringValue:
- pushValue(valueToQuotedString(value.asCString()));
+ {
+ // Is NULL possible for value.string_?
+ char const* str;
+ char const* end;
+ bool ok = value.getString(&str, &end);
+ if (ok) pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end-str)));
+ else pushValue("");
break;
+ }
case booleanValue:
pushValue(valueToString(value.asBool()));
break;
@@ -376,6 +498,9 @@ bool StyledWriter::isMultineArray(const Value& value) {
addChildValues_ = true;
int lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
for (int index = 0; index < size; ++index) {
+ if (hasCommentForValue(value[index])) {
+ isMultiLine = true;
+ }
writeValue(value[index]);
lineLength += int(childValues_[index].length());
}
@@ -421,26 +546,27 @@ void StyledWriter::writeCommentBeforeValue(const Value& root) {
document_ += "\n";
writeIndent();
- std::string normalizedComment = normalizeEOL(root.getComment(commentBefore));
- std::string::const_iterator iter = normalizedComment.begin();
- while (iter != normalizedComment.end()) {
+ const std::string& comment = root.getComment(commentBefore);
+ std::string::const_iterator iter = comment.begin();
+ while (iter != comment.end()) {
document_ += *iter;
- if (*iter == '\n' && *(iter + 1) == '/')
+ if (*iter == '\n' &&
+ (iter != comment.end() && *(iter + 1) == '/'))
writeIndent();
++iter;
}
- // Comments are stripped of newlines, so add one here
+ // Comments are stripped of trailing newlines, so add one here
document_ += "\n";
}
void StyledWriter::writeCommentAfterValueOnSameLine(const Value& root) {
if (root.hasComment(commentAfterOnSameLine))
- document_ += " " + normalizeEOL(root.getComment(commentAfterOnSameLine));
+ document_ += " " + root.getComment(commentAfterOnSameLine);
if (root.hasComment(commentAfter)) {
document_ += "\n";
- document_ += normalizeEOL(root.getComment(commentAfter));
+ document_ += root.getComment(commentAfter);
document_ += "\n";
}
}
@@ -451,25 +577,6 @@ bool StyledWriter::hasCommentForValue(const Value& value) {
value.hasComment(commentAfter);
}
-std::string StyledWriter::normalizeEOL(const std::string& text) {
- std::string normalized;
- normalized.reserve(text.length());
- const char* begin = text.c_str();
- const char* end = begin + text.length();
- const char* current = begin;
- while (current != end) {
- char c = *current++;
- if (c == '\r') // mac or dos EOL
- {
- if (*current == '\n') // convert dos EOL
- ++current;
- normalized += '\n';
- } else // handle unix EOL & other char
- normalized += c;
- }
- return normalized;
-}
-
// Class StyledStreamWriter
// //////////////////////////////////////////////////////////////////
@@ -481,7 +588,10 @@ void StyledStreamWriter::write(std::ostream& out, const Value& root) {
document_ = &out;
addChildValues_ = false;
indentString_ = "";
+ indented_ = true;
writeCommentBeforeValue(root);
+ if (!indented_) writeIndent();
+ indented_ = true;
writeValue(root);
writeCommentAfterValueOnSameLine(root);
*document_ << "\n";
@@ -503,8 +613,15 @@ void StyledStreamWriter::writeValue(const Value& value) {
pushValue(valueToString(value.asDouble()));
break;
case stringValue:
- pushValue(valueToQuotedString(value.asCString()));
+ {
+ // Is NULL possible for value.string_?
+ char const* str;
+ char const* end;
+ bool ok = value.getString(&str, &end);
+ if (ok) pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end-str)));
+ else pushValue("");
break;
+ }
case booleanValue:
pushValue(valueToString(value.asBool()));
break;
@@ -557,8 +674,10 @@ void StyledStreamWriter::writeArrayValue(const Value& value) {
if (hasChildValue)
writeWithIndent(childValues_[index]);
else {
- writeIndent();
+ if (!indented_) writeIndent();
+ indented_ = true;
writeValue(childValue);
+ indented_ = false;
}
if (++index == size) {
writeCommentAfterValueOnSameLine(childValue);
@@ -599,6 +718,9 @@ bool StyledStreamWriter::isMultineArray(const Value& value) {
addChildValues_ = true;
int lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
for (int index = 0; index < size; ++index) {
+ if (hasCommentForValue(value[index])) {
+ isMultiLine = true;
+ }
writeValue(value[index]);
lineLength += int(childValues_[index].length());
}
@@ -616,24 +738,17 @@ void StyledStreamWriter::pushValue(const std::string& value) {
}
void StyledStreamWriter::writeIndent() {
- /*
- Some comments in this method would have been nice. ;-)
-
- if ( !document_.empty() )
- {
- char last = document_[document_.length()-1];
- if ( last == ' ' ) // already indented
- return;
- if ( last != '\n' ) // Comments may add new-line
- *document_ << '\n';
- }
- */
+ // blep intended this to look at the so-far-written string
+ // to determine whether we are already indented, but
+ // with a stream we cannot do that. So we rely on some saved state.
+ // The caller checks indented_.
*document_ << '\n' << indentString_;
}
void StyledStreamWriter::writeWithIndent(const std::string& value) {
- writeIndent();
+ if (!indented_) writeIndent();
*document_ << value;
+ indented_ = false;
}
void StyledStreamWriter::indent() { indentString_ += indentation_; }
@@ -646,19 +761,30 @@ void StyledStreamWriter::unindent() {
void StyledStreamWriter::writeCommentBeforeValue(const Value& root) {
if (!root.hasComment(commentBefore))
return;
- *document_ << normalizeEOL(root.getComment(commentBefore));
- *document_ << "\n";
+
+ if (!indented_) writeIndent();
+ const std::string& comment = root.getComment(commentBefore);
+ std::string::const_iterator iter = comment.begin();
+ while (iter != comment.end()) {
+ *document_ << *iter;
+ if (*iter == '\n' &&
+ (iter != comment.end() && *(iter + 1) == '/'))
+ // writeIndent(); // would include newline
+ *document_ << indentString_;
+ ++iter;
+ }
+ indented_ = false;
}
void StyledStreamWriter::writeCommentAfterValueOnSameLine(const Value& root) {
if (root.hasComment(commentAfterOnSameLine))
- *document_ << " " + normalizeEOL(root.getComment(commentAfterOnSameLine));
+ *document_ << ' ' << root.getComment(commentAfterOnSameLine);
if (root.hasComment(commentAfter)) {
- *document_ << "\n";
- *document_ << normalizeEOL(root.getComment(commentAfter));
- *document_ << "\n";
+ writeIndent();
+ *document_ << root.getComment(commentAfter);
}
+ indented_ = false;
}
bool StyledStreamWriter::hasCommentForValue(const Value& value) {
@@ -667,28 +793,386 @@ bool StyledStreamWriter::hasCommentForValue(const Value& value) {
value.hasComment(commentAfter);
}
-std::string StyledStreamWriter::normalizeEOL(const std::string& text) {
- std::string normalized;
- normalized.reserve(text.length());
- const char* begin = text.c_str();
- const char* end = begin + text.length();
- const char* current = begin;
- while (current != end) {
- char c = *current++;
- if (c == '\r') // mac or dos EOL
+//////////////////////////
+// BuiltStyledStreamWriter
+
+/// Scoped enums are not available until C++11.
+struct CommentStyle {
+ /// Decide whether to write comments.
+ enum Enum {
+ None, ///< Drop all comments.
+ Most, ///< Recover odd behavior of previous versions (not implemented yet).
+ All ///< Keep all comments.
+ };
+};
+
+struct BuiltStyledStreamWriter : public StreamWriter
+{
+ BuiltStyledStreamWriter(
+ std::string const& indentation,
+ CommentStyle::Enum cs,
+ std::string const& colonSymbol,
+ std::string const& nullSymbol,
+ std::string const& endingLineFeedSymbol);
+ virtual int write(Value const& root, std::ostream* sout);
+private:
+ void writeValue(Value const& value);
+ void writeArrayValue(Value const& value);
+ bool isMultineArray(Value const& value);
+ void pushValue(std::string const& value);
+ void writeIndent();
+ void writeWithIndent(std::string const& value);
+ void indent();
+ void unindent();
+ void writeCommentBeforeValue(Value const& root);
+ void writeCommentAfterValueOnSameLine(Value const& root);
+ static bool hasCommentForValue(const Value& value);
+
+ typedef std::vector<std::string> ChildValues;
+
+ ChildValues childValues_;
+ std::string indentString_;
+ int rightMargin_;
+ std::string indentation_;
+ CommentStyle::Enum cs_;
+ std::string colonSymbol_;
+ std::string nullSymbol_;
+ std::string endingLineFeedSymbol_;
+ bool addChildValues_ : 1;
+ bool indented_ : 1;
+};
+BuiltStyledStreamWriter::BuiltStyledStreamWriter(
+ std::string const& indentation,
+ CommentStyle::Enum cs,
+ std::string const& colonSymbol,
+ std::string const& nullSymbol,
+ std::string const& endingLineFeedSymbol)
+ : rightMargin_(74)
+ , indentation_(indentation)
+ , cs_(cs)
+ , colonSymbol_(colonSymbol)
+ , nullSymbol_(nullSymbol)
+ , endingLineFeedSymbol_(endingLineFeedSymbol)
+ , addChildValues_(false)
+ , indented_(false)
+{
+}
+int BuiltStyledStreamWriter::write(Value const& root, std::ostream* sout)
+{
+ sout_ = sout;
+ addChildValues_ = false;
+ indented_ = true;
+ indentString_ = "";
+ writeCommentBeforeValue(root);
+ if (!indented_) writeIndent();
+ indented_ = true;
+ writeValue(root);
+ writeCommentAfterValueOnSameLine(root);
+ *sout_ << endingLineFeedSymbol_;
+ sout_ = NULL;
+ return 0;
+}
+void BuiltStyledStreamWriter::writeValue(Value const& value) {
+ switch (value.type()) {
+ case nullValue:
+ pushValue(nullSymbol_);
+ break;
+ case intValue:
+ pushValue(valueToString(value.asLargestInt()));
+ break;
+ case uintValue:
+ pushValue(valueToString(value.asLargestUInt()));
+ break;
+ case realValue:
+ pushValue(valueToString(value.asDouble()));
+ break;
+ case stringValue:
+ {
+ // Is NULL is possible for value.string_?
+ char const* str;
+ char const* end;
+ bool ok = value.getString(&str, &end);
+ if (ok) pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end-str)));
+ else pushValue("");
+ break;
+ }
+ case booleanValue:
+ pushValue(valueToString(value.asBool()));
+ break;
+ case arrayValue:
+ writeArrayValue(value);
+ break;
+ case objectValue: {
+ Value::Members members(value.getMemberNames());
+ if (members.empty())
+ pushValue("{}");
+ else {
+ writeWithIndent("{");
+ indent();
+ Value::Members::iterator it = members.begin();
+ for (;;) {
+ std::string const& name = *it;
+ Value const& childValue = value[name];
+ writeCommentBeforeValue(childValue);
+ writeWithIndent(valueToQuotedStringN(name.data(), static_cast<unsigned>(name.length())));
+ *sout_ << colonSymbol_;
+ writeValue(childValue);
+ if (++it == members.end()) {
+ writeCommentAfterValueOnSameLine(childValue);
+ break;
+ }
+ *sout_ << ",";
+ writeCommentAfterValueOnSameLine(childValue);
+ }
+ unindent();
+ writeWithIndent("}");
+ }
+ } break;
+ }
+}
+
+void BuiltStyledStreamWriter::writeArrayValue(Value const& value) {
+ unsigned size = value.size();
+ if (size == 0)
+ pushValue("[]");
+ else {
+ bool isMultiLine = (cs_ == CommentStyle::All) || isMultineArray(value);
+ if (isMultiLine) {
+ writeWithIndent("[");
+ indent();
+ bool hasChildValue = !childValues_.empty();
+ unsigned index = 0;
+ for (;;) {
+ Value const& childValue = value[index];
+ writeCommentBeforeValue(childValue);
+ if (hasChildValue)
+ writeWithIndent(childValues_[index]);
+ else {
+ if (!indented_) writeIndent();
+ indented_ = true;
+ writeValue(childValue);
+ indented_ = false;
+ }
+ if (++index == size) {
+ writeCommentAfterValueOnSameLine(childValue);
+ break;
+ }
+ *sout_ << ",";
+ writeCommentAfterValueOnSameLine(childValue);
+ }
+ unindent();
+ writeWithIndent("]");
+ } else // output on a single line
{
- if (*current == '\n') // convert dos EOL
- ++current;
- normalized += '\n';
- } else // handle unix EOL & other char
- normalized += c;
+ assert(childValues_.size() == size);
+ *sout_ << "[";
+ if (!indentation_.empty()) *sout_ << " ";
+ for (unsigned index = 0; index < size; ++index) {
+ if (index > 0)
+ *sout_ << ", ";
+ *sout_ << childValues_[index];
+ }
+ if (!indentation_.empty()) *sout_ << " ";
+ *sout_ << "]";
+ }
+ }
+}
+
+bool BuiltStyledStreamWriter::isMultineArray(Value const& value) {
+ int size = value.size();
+ bool isMultiLine = size * 3 >= rightMargin_;
+ childValues_.clear();
+ for (int index = 0; index < size && !isMultiLine; ++index) {
+ Value const& childValue = value[index];
+ isMultiLine =
+ isMultiLine || ((childValue.isArray() || childValue.isObject()) &&
+ childValue.size() > 0);
}
- return normalized;
+ if (!isMultiLine) // check if line length > max line length
+ {
+ childValues_.reserve(size);
+ addChildValues_ = true;
+ int lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
+ for (int index = 0; index < size; ++index) {
+ if (hasCommentForValue(value[index])) {
+ isMultiLine = true;
+ }
+ writeValue(value[index]);
+ lineLength += int(childValues_[index].length());
+ }
+ addChildValues_ = false;
+ isMultiLine = isMultiLine || lineLength >= rightMargin_;
+ }
+ return isMultiLine;
+}
+
+void BuiltStyledStreamWriter::pushValue(std::string const& value) {
+ if (addChildValues_)
+ childValues_.push_back(value);
+ else
+ *sout_ << value;
+}
+
+void BuiltStyledStreamWriter::writeIndent() {
+ // blep intended this to look at the so-far-written string
+ // to determine whether we are already indented, but
+ // with a stream we cannot do that. So we rely on some saved state.
+ // The caller checks indented_.
+
+ if (!indentation_.empty()) {
+ // In this case, drop newlines too.
+ *sout_ << '\n' << indentString_;
+ }
+}
+
+void BuiltStyledStreamWriter::writeWithIndent(std::string const& value) {
+ if (!indented_) writeIndent();
+ *sout_ << value;
+ indented_ = false;
+}
+
+void BuiltStyledStreamWriter::indent() { indentString_ += indentation_; }
+
+void BuiltStyledStreamWriter::unindent() {
+ assert(indentString_.size() >= indentation_.size());
+ indentString_.resize(indentString_.size() - indentation_.size());
+}
+
+void BuiltStyledStreamWriter::writeCommentBeforeValue(Value const& root) {
+ if (cs_ == CommentStyle::None) return;
+ if (!root.hasComment(commentBefore))
+ return;
+
+ if (!indented_) writeIndent();
+ const std::string& comment = root.getComment(commentBefore);
+ std::string::const_iterator iter = comment.begin();
+ while (iter != comment.end()) {
+ *sout_ << *iter;
+ if (*iter == '\n' &&
+ (iter != comment.end() && *(iter + 1) == '/'))
+ // writeIndent(); // would write extra newline
+ *sout_ << indentString_;
+ ++iter;
+ }
+ indented_ = false;
+}
+
+void BuiltStyledStreamWriter::writeCommentAfterValueOnSameLine(Value const& root) {
+ if (cs_ == CommentStyle::None) return;
+ if (root.hasComment(commentAfterOnSameLine))
+ *sout_ << " " + root.getComment(commentAfterOnSameLine);
+
+ if (root.hasComment(commentAfter)) {
+ writeIndent();
+ *sout_ << root.getComment(commentAfter);
+ }
+}
+
+// static
+bool BuiltStyledStreamWriter::hasCommentForValue(const Value& value) {
+ return value.hasComment(commentBefore) ||
+ value.hasComment(commentAfterOnSameLine) ||
+ value.hasComment(commentAfter);
+}
+
+///////////////
+// StreamWriter
+
+StreamWriter::StreamWriter()
+ : sout_(NULL)
+{
+}
+StreamWriter::~StreamWriter()
+{
+}
+StreamWriter::Factory::~Factory()
+{}
+StreamWriterBuilder::StreamWriterBuilder()
+{
+ setDefaults(&settings_);
+}
+StreamWriterBuilder::~StreamWriterBuilder()
+{}
+StreamWriter* StreamWriterBuilder::newStreamWriter() const
+{
+ std::string indentation = settings_["indentation"].asString();
+ std::string cs_str = settings_["commentStyle"].asString();
+ bool eyc = settings_["enableYAMLCompatibility"].asBool();
+ bool dnp = settings_["dropNullPlaceholders"].asBool();
+ CommentStyle::Enum cs = CommentStyle::All;
+ if (cs_str == "All") {
+ cs = CommentStyle::All;
+ } else if (cs_str == "None") {
+ cs = CommentStyle::None;
+ } else {
+ throwRuntimeError("commentStyle must be 'All' or 'None'");
+ }
+ std::string colonSymbol = " : ";
+ if (eyc) {
+ colonSymbol = ": ";
+ } else if (indentation.empty()) {
+ colonSymbol = ":";
+ }
+ std::string nullSymbol = "null";
+ if (dnp) {
+ nullSymbol = "";
+ }
+ std::string endingLineFeedSymbol = "";
+ return new BuiltStyledStreamWriter(
+ indentation, cs,
+ colonSymbol, nullSymbol, endingLineFeedSymbol);
+}
+static void getValidWriterKeys(std::set<std::string>* valid_keys)
+{
+ valid_keys->clear();
+ valid_keys->insert("indentation");
+ valid_keys->insert("commentStyle");
+ valid_keys->insert("enableYAMLCompatibility");
+ valid_keys->insert("dropNullPlaceholders");
+}
+bool StreamWriterBuilder::validate(Json::Value* invalid) const
+{
+ Json::Value my_invalid;
+ if (!invalid) invalid = &my_invalid; // so we do not need to test for NULL
+ Json::Value& inv = *invalid;
+ std::set<std::string> valid_keys;
+ getValidWriterKeys(&valid_keys);
+ Value::Members keys = settings_.getMemberNames();
+ size_t n = keys.size();
+ for (size_t i = 0; i < n; ++i) {
+ std::string const& key = keys[i];
+ if (valid_keys.find(key) == valid_keys.end()) {
+ inv[key] = settings_[key];
+ }
+ }
+ return 0u == inv.size();
+}
+Value& StreamWriterBuilder::operator[](std::string key)
+{
+ return settings_[key];
+}
+// static
+void StreamWriterBuilder::setDefaults(Json::Value* settings)
+{
+ //! [StreamWriterBuilderDefaults]
+ (*settings)["commentStyle"] = "All";
+ (*settings)["indentation"] = "\t";
+ (*settings)["enableYAMLCompatibility"] = false;
+ (*settings)["dropNullPlaceholders"] = false;
+ //! [StreamWriterBuilderDefaults]
+}
+
+std::string writeString(StreamWriter::Factory const& builder, Value const& root) {
+ std::ostringstream sout;
+ StreamWriterPtr const writer(builder.newStreamWriter());
+ writer->write(root, &sout);
+ return sout.str();
}
-std::ostream& operator<<(std::ostream& sout, const Value& root) {
- Json::StyledStreamWriter writer;
- writer.write(sout, root);
+std::ostream& operator<<(std::ostream& sout, Value const& root) {
+ StreamWriterBuilder builder;
+ StreamWriterPtr const writer(builder.newStreamWriter());
+ writer->write(root, &sout);
return sout;
}