Initial commit of basis persistence

JSON parser lifted almost verbatim for libjsonpp running into some
custom code for populating ilt objects. Pretty minimal per object code
requirements.

1 files changed, 39 insertions, 0 deletions

diff --git a/lib/jsonParse.impl.cpp b/lib/jsonParse.impl.cpp
new file mode 100644
index 0000000..27e73b4
--- /dev/null
+++ b/lib/jsonParse.impl.cpp
@@ -0,0 +1,39 @@
+#include "jsonParse.h"
+
+void
+json::jsonParser::LexerError(const char * msg)
+{
+	throw std::runtime_error(msg);
+}
+
+void
+json::jsonParser::appendEscape(const char * cphs, std::string & str)
+{
+	appendEscape(std::strtoul(cphs, nullptr, 16), str);
+}
+
+void
+json::jsonParser::appendEscape(unsigned long cp, std::string & str)
+{
+	if (cp <= 0x7F) {
+		str += cp;
+	}
+	else if (cp <= 0x7FF) {
+		str += (cp >> 6) + 192;
+		str += (cp & 63) + 128;
+	}
+	else if (0xd800 <= cp && cp <= 0xdfff) {
+		throw std::range_error("Invalid UTF-8 sequence");
+	}
+	else if (cp <= 0xFFFF) {
+		str += (cp >> 12) + 224;
+		str += ((cp >> 6) & 63) + 128;
+		str += (cp & 63) + 128;
+	}
+	else if (cp <= 0x10FFFF) {
+		str += (cp >> 18) + 240;
+		str += ((cp >> 12) & 63) + 128;
+		str += ((cp >> 6) & 63) + 128;
+		str += (cp & 63) + 128;
+	}
+}