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#include "lib/stringinfo.h"
#define booltostr(x) ((x) ? "true" : "false")
static void
removeTrailingDelimiter(StringInfo str)
{
if (str->len >= 1 && str->data[str->len - 1] == ',') {
str->len -= 1;
str->data[str->len] = '\0';
}
}
static void
_outToken(StringInfo buf, const char *str)
{
if (str == NULL)
{
appendStringInfoString(buf, "null");
return;
}
// copied directly from https://github.com/postgres/postgres/blob/master/src/backend/utils/adt/json.c#L2428
const char *p;
appendStringInfoCharMacro(buf, '"');
for (p = str; *p; p++)
{
switch (*p)
{
case '\b':
appendStringInfoString(buf, "\\b");
break;
case '\f':
appendStringInfoString(buf, "\\f");
break;
case '\n':
appendStringInfoString(buf, "\\n");
break;
case '\r':
appendStringInfoString(buf, "\\r");
break;
case '\t':
appendStringInfoString(buf, "\\t");
break;
case '"':
appendStringInfoString(buf, "\\\"");
break;
case '\\':
appendStringInfoString(buf, "\\\\");
break;
default:
if ((unsigned char) *p < ' ' || *p == '<' || *p == '>')
appendStringInfo(buf, "\\u%04x", (int) *p);
else
appendStringInfoCharMacro(buf, *p);
break;
}
}
appendStringInfoCharMacro(buf, '"');
}
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