std::string quoteArg(const std::string &arg) {
if (!needsQuotes(arg))
return arg;
std::string quotedArg;
quotedArg.reserve(3 + 2 * arg.size()); // worst case
quotedArg.push_back('"');
const size_t argLength = arg.length();
for (size_t i = 0; i < argLength; ++i) {
if (arg[i] == '"') {
// Escape all preceding backslashes (if any).
// Note that we *don't* need to escape runs of backslashes that don't
// precede a double quote! See MSDN:
// http://msdn.microsoft.com/en-us/library/17w5ykft%28v=vs.85%29.aspx
quotedArg.append(countPrecedingBackslashes(arg, i), '\\');
// Escape the double quote.
quotedArg.push_back('\\');
}
quotedArg.push_back(arg[i]);
}
// Make sure our final double quote doesn't get escaped by a trailing
// backslash.
quotedArg.append(countPrecedingBackslashes(arg, argLength), '\\');
quotedArg.push_back('"');
return quotedArg;
}
bool ScalarTraits<uuid_t>::mustQuote(StringRef S) { return needsQuotes(S); }
bool ScalarTraits<char_16>::mustQuote(StringRef S) { return needsQuotes(S); }
// TODO: if the output will fit on one line, compress tables and arrays into a single line
void Any::serialize(TextOutput& to) const {
beforeRead();
if (m_data && !m_data->comment.empty()) {
to.printf("\n/* %s */\n", m_data->comment.c_str());
}
switch (m_type) {
case NONE:
to.writeSymbol("NONE");
break;
case BOOLEAN:
to.writeBoolean(m_simpleValue.b);
break;
case NUMBER:
to.writeNumber(m_simpleValue.n);
break;
case STRING:
debugAssert(m_data != NULL);
to.writeString(*(m_data->value.s));
break;
case TABLE: {
debugAssert(m_data != NULL);
if (!m_data->name.empty()) {
if (needsQuotes(m_data->name)) {
to.writeString(m_data->name);
}
else {
to.writeSymbol(m_data->name);
}
}
to.writeSymbol("{");
to.writeNewline();
to.pushIndent();
AnyTable& table = *(m_data->value.t);
Array<std::string> keys;
table.getKeys(keys);
keys.sort();
for (int i = 0; i < keys.size(); ++i) {
to.writeSymbol(keys[i]);
to.writeSymbol("=");
table[keys[i]].serialize(to);
if (i < keys.size() - 1) {
to.writeSymbol(",");
}
to.writeNewline();
// Skip a line between table entries
to.writeNewline();
}
to.popIndent();
to.writeSymbol("}");
break;
}
case ARRAY: {
debugAssert(m_data != NULL);
if (!m_data->name.empty()) {
// For arrays, leave no trailing space between the name and the paren
to.writeSymbol(format("%s(", m_data->name.c_str()));
}
else {
to.writeSymbol("(");
}
to.writeNewline();
to.pushIndent();
Array<Any>& array = *(m_data->value.a);
for (int ii = 0; ii < size(); ++ii) {
array[ii].serialize(to);
if (ii < size() - 1) {
to.writeSymbol(",");
to.writeNewline();
}
// Put the close paren on an array right behind the last element
}
to.popIndent();
to.writeSymbol(")");
break;
}
}
}
static bool mustQuote(StringRef Scalar) { return needsQuotes(Scalar); }