X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=json.hpp;h=9e6b96004dc71be9dc96e85a6d4279f508c12765;hb=fb5d8739b40292a30559ac8b2a6727e71519dcd8;hp=7326891fd1f6939d4044b259f61e1ffe314d4687;hpb=2e8febd137df6f4471c2f3a361ae21ee2fb0a6bc;p=apitrace

diff --git a/json.hpp b/json.hpp
index 7326891..9e6b960 100644
--- a/json.hpp
+++ b/json.hpp
@@ -34,8 +34,9 @@
 #include <stddef.h>
 #include <wchar.h>
 
-#include <ostream>
 #include <iomanip>
+#include <ostream>
+#include <string>
 
 
 class JSONWriter
@@ -143,6 +144,63 @@ private:
         os << "\"";
     }
 
+    void encodeBase64String(const unsigned char *bytes, size_t size) {
+        const char *table64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+        unsigned char c0, c1, c2, c3;
+        char buf[4];
+        unsigned written;
+
+        os << "\"";
+
+        written = 0;
+        while (size >= 3) {
+            c0 = bytes[0] >> 2;
+            c1 = ((bytes[0] & 0x03) << 4) | ((bytes[1] & 0xf0) >> 4);
+            c2 = ((bytes[1] & 0x0f) << 2) | ((bytes[2] & 0xc0) >> 6);
+            c3 = bytes[2] & 0x3f;
+
+            buf[0] = table64[c0];
+            buf[1] = table64[c1];
+            buf[2] = table64[c2];
+            buf[3] = table64[c3];
+
+            os.write(buf, 4);
+
+            bytes += 3;
+            size -= 3;
+            ++written;
+
+            if (written >= 76/4 && size) {
+                os << "\n";
+                written = 0;
+            }
+        }
+
+        if (size > 0) {
+            c0 = bytes[0] >> 2;
+            c1 = ((bytes[0] & 0x03) << 4);
+            buf[2] = '=';
+            buf[3] = '=';
+            
+            if (size > 1) {
+                c1 |= ((bytes[1] & 0xf0) >> 4);
+                c2 = ((bytes[1] & 0x0f) << 2);
+                if (size > 2) {
+                    c2 |= ((bytes[2] & 0xc0) >> 6);
+                    c3 = bytes[2] & 0x3f;
+                    buf[3] = table64[c3];
+                }
+                buf[2] = table64[c2];
+            }
+            buf[1] = table64[c1];
+            buf[0] = table64[c0];
+
+            os.write(buf, 4);
+        }
+
+        os << "\"";
+    }
+
 public:
     JSONWriter(std::ostream &_os) : 
         os(_os), 
@@ -183,6 +241,10 @@ public:
         value = false;
     }
 
+    inline void beginMember(const std::string &name) {
+        beginMember(name.c_str());
+    }
+
     inline void endMember(void) {
         assert(value);
         value = true;
@@ -214,6 +276,17 @@ public:
         space = ' ';
     }
 
+    inline void writeString(const std::string &s) {
+        writeString(s.c_str());
+    }
+
+    inline void writeBase64(const void *bytes, size_t size) {
+        separator();
+        encodeBase64String((const unsigned char *)bytes, size);
+        value = true;
+        space = ' ';
+    }
+
     inline void writeNull(void) {
         separator();
         os << "null";
@@ -229,11 +302,35 @@ public:
     }
 
     template<class T>
-    void writeNumber(T n) {
-        separator();
-        os << std::dec << n;
-        value = true;
-        space = ' ';
+    inline void writeNumber(T n) {
+        if (n != n) {
+            // NaN
+            writeNull();
+        } else {
+            separator();
+            os << std::dec << std::setprecision(9) << n;
+            value = true;
+            space = ' ';
+        }
+    }
+    
+    inline void writeStringMember(const char *name, const char *s) {
+        beginMember(name);
+        writeString(s);
+        endMember();
+    }
+
+    inline void writeBoolMember(const char *name, bool b) {
+        beginMember(name);
+        writeBool(b);
+        endMember();
+    }
+
+    template<class T>
+    inline void writeNumberMember(const char *name, T n) {
+        beginMember(name);
+        writeNumber(n);
+        endMember();
     }
 };