Redefinition error when switching to std::regex

[xiaoPierre]

Hello,

I got a problem when trying to switch from rapidjson internal regex to c++11 regex. In the documentation, I found :

For C++11 compiler, it is also possible to use the std::regex by defining RAPIDJSON_SCHEMA_USE_INTERNALREGEX=0 and RAPIDJSON_SCHEMA_USE_STDREGEX=1.

Then I defined these two macros but I got redefinition error :

rapidjson/schema.h:31:0: error: "RAPIDJSON_SCHEMA_USE_STDREGEX" redefined [-Werror]

I investigated in schema.h then I found this part of code which is the cause :

#if !RAPIDJSON_SCHEMA_USE_INTERNALREGEX && !defined(RAPIDJSON_SCHEMA_USE_STDREGEX) && (__cplusplus >=201103L || (defined(_MSC_VER) && _MSC_VER >= 1800))
#define RAPIDJSON_SCHEMA_USE_STDREGEX 1
#else
#define RAPIDJSON_SCHEMA_USE_STDREGEX 0
#endif

When defining RAPIDJSON_SCHEMA_USE_STDREGEX, it will cause redefinition error in the else clause.

I think this code and / or the documentation should be changed.

Regards,
Pierre

[xiaoPierre]

Still cannot use std regex
possible fix : #1161

[ivysotskyi]

having the same issue. No way to switch to std regexp.

the regex I need to check:

"patternProperties": {
    "^(?!sys\\.).*$"

the values:

"some_variable_name"- match
"sys.heart_side" - no match