a few more test suites

escapecharc now supports non-ascii

textcode/scan_base64.c

@@ -49,5 +49,6 @@ int main() {
   size_t i,l;
   memset(buf,0,10); assert(scan_base64("Zm5vcmQ=",buf,&l)==8 && l==5 && !memcmp(buf,"fnord",6));
   memset(buf,0,10); assert(scan_base64("Zm5vcmQ",buf,&l)==7 && l==5 && !memcmp(buf,"fnord",6));
+  memset(buf,0,10); assert(scan_base64("//8=",buf,&l)==4 && l==2 && !memcmp(buf,"\xff\xff",3));
 }
 #endif

textcode/scan_jsonescape.c

@@ -72,6 +72,7 @@ abort:
 
 #ifdef UNITTEST
 #include <assert.h>
+#include <string.h>
 
 int main() {
   char buf[100];