Files
nethack/sys/share/cppregex.cpp
Sean Hunt 80aa109855 Use extern.h for regexes.
I was planning to do this anyway, but it created an include loop that
was breaking it on Windows.
2015-04-12 11:46:54 -04:00

52 lines
1.3 KiB
C++

/* NetHack 3.5 cppregex.cpp $NHDT-Date$ $NHDT-Branch$:$NHDT-Revision$ */
/* NetHack 3.5 cppregex.cpp $Date: 2009/05/06 10:44:33 $ $Revision: 1.4 $ */
/* Copyright (c) Sean Hunt 2015. */
/* NetHack may be freely redistributed. See license for details. */
#include <regex>
#include <memory>
extern "C" {
#include <hack.h>
struct nhregex {
std::unique_ptr<std::regex> re;
std::unique_ptr<std::regex_error> err;
};
struct nhregex *regex_init(void) {
return new nhregex;
}
boolean regex_compile(const char *s, struct nhregex *re) {
if (!re)
return FALSE;
try {
re->re.reset(new std::regex(s, std::regex::extended | std::regex::nosubs | std::regex::optimize));
re->err.reset(nullptr);
return TRUE;
} catch (const std::regex_error& err) {
re->err.reset(new std::regex_error(err));
re->re.reset(nullptr);
return FALSE;
}
}
const char *regex_error_desc(struct nhregex *re) {
if (re->err)
return re->err->what();
else
return nullptr;
}
boolean regex_match(const char *s, struct nhregex *re) {
if (!re->re)
return false;
return regex_search(s, *re->re, std::regex_constants::match_any);
}
void regex_free(struct nhregex *re) {
delete re;
}
}