|
|
|
@ -57,7 +57,7 @@ size_t scan_jsonescape(const char *src,char *dest,size_t *destlen) { |
|
|
|
|
} |
|
|
|
|
if (prev!=(unsigned int)-1) goto abort; |
|
|
|
|
/* We expect utf-8 incoming. Make sure it's valid. */ |
|
|
|
|
if (!scan_utf8(s+i,4,NULL)) goto abort; |
|
|
|
|
if (!scan_utf8(src+i,4,NULL)) goto abort; |
|
|
|
|
if (dest) dest[written]=c; |
|
|
|
|
++written; |
|
|
|
|
} |
|
|
|
@ -69,3 +69,36 @@ abort: |
|
|
|
|
*destlen=written; |
|
|
|
|
return i; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
#ifdef UNITTEST |
|
|
|
|
#include <assert.h> |
|
|
|
|
|
|
|
|
|
int main() { |
|
|
|
|
char buf[100]; |
|
|
|
|
size_t l; |
|
|
|
|
assert(scan_jsonescape("fnord",buf,&l)==5 && l==5 && !memcmp(buf,"fnord",5)); |
|
|
|
|
/* is \n properly unescaped? */ |
|
|
|
|
assert(scan_jsonescape("a\\nb",buf,&l)==4 && l==3 && !memcmp(buf,"a\nb",3)); |
|
|
|
|
assert(scan_jsonescape("a\\rb",buf,&l)==4 && l==3 && !memcmp(buf,"a\rb",3)); |
|
|
|
|
assert(scan_jsonescape("a\\bb",buf,&l)==4 && l==3 && !memcmp(buf,"a\bb",3)); |
|
|
|
|
assert(scan_jsonescape("a\\fb",buf,&l)==4 && l==3 && !memcmp(buf,"a\fb",3)); |
|
|
|
|
assert(scan_jsonescape("a\\tb",buf,&l)==4 && l==3 && !memcmp(buf,"a\tb",3)); |
|
|
|
|
assert(scan_jsonescape("a\\\\b",buf,&l)==4 && l==3 && !memcmp(buf,"a\\b",3)); |
|
|
|
|
assert(scan_jsonescape("a\\/b",buf,&l)==4 && l==3 && !memcmp(buf,"a/b",3)); |
|
|
|
|
assert(scan_jsonescape("a\\\"b",buf,&l)==4 && l==3 && !memcmp(buf,"a\"b",3)); |
|
|
|
|
/* does a double quote end the string? */ |
|
|
|
|
assert(scan_jsonescape("a\"b",buf,&l)==1 && l==1 && !memcmp(buf,"a",1)); |
|
|
|
|
/* how about unicode escape */ |
|
|
|
|
assert(scan_jsonescape("a\\u005cb",buf,&l)==8 && l==3 && !memcmp(buf,"a\\b",3)); |
|
|
|
|
/* a trailing surrogate pair with no lead before it */ |
|
|
|
|
assert(scan_jsonescape("a\\udead\"",buf,&l)==1); |
|
|
|
|
/* a lead surrogate pair with no trailer behind it */ |
|
|
|
|
assert(scan_jsonescape("a\\udafd\"",buf,&l)==1); |
|
|
|
|
assert(scan_jsonescape("a\\udafd\\udafd",buf,&l)==1); |
|
|
|
|
assert(scan_jsonescape("a\\udafd0",buf,&l)==1); |
|
|
|
|
/* correct surrogate pair */ |
|
|
|
|
assert(scan_jsonescape("a\\ud834\\udd1eb",buf,&l)==14 && l==6 && !memcmp(buf,"a\xf0\x9d\x84\x9e""b",6)); |
|
|
|
|
/* how about some incorrect UTF-8? */ |
|
|
|
|
assert(scan_jsonescape("a\xc0\xaf",buf,&l)==1 && l==1 && !memcmp(buf,"a",1)); |
|
|
|
|
} |
|
|
|
|
#endif |
|
|
|
|