c891066bf1
Avoid a conflict with c++ std header file on at least one platform.
Build log prior:
In file included from DKA100:[DEVEL.nethack-37.sys.share]cppregex.cpp;1:12:
In file included from /SYS$COMMON/VSICXX$LIB/INCLUDE/LIB_CXX/INCLUDE/regex:768:
In file included from /SYS$COMMON/VSICXX$LIB/INCLUDE/LIB_CXX/INCLUDE/stdexcept:5
1:
In file included from /SYS$COMMON/VSICXX$LIB/INCLUDE/LIB_CXX/INCLUDE/exception:8
7:
In file included from /SYS$COMMON/VSICXX$LIB/INCLUDE/LIB_CXX/INCLUDE/cstdlib:91:
In file included from /SYS$COMMON/VSICXX$LIB/INCLUDE/LIB_CXX/INCLUDE/stdlib.h:10
3:
/SYS$COMMON/VSICXX$LIB/INCLUDE/DECC$RTLDEF/stdlib.h:200:24: error: too many argu
ments provided to function-like macro invocation
void abort (void);
^
../INCLUDE/vmsconf.h:307:9: note: macro 'abort' defined here
#define abort() vms_abort() /* vmsmisc.c */
^
89 lines
1.9 KiB
C++
89 lines
1.9 KiB
C++
/* NetHack 3.7 cppregex.cpp */
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/* $NHDT-Date: 1596498279 2020/08/03 23:44:39 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.9 $ */
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/* Copyright (c) Sean Hunt 2015. */
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/* NetHack may be freely redistributed. See license for details. */
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#include <regex>
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#include <memory>
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#include <cstring>
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extern "C" {
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#include "config.h"
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#define CPPREGEX_C
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#include "extern.h"
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} // extern "C"
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extern "C" { // rest of file
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/* nhregex interface documented in sys/share/posixregex.c */
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extern const char regex_id[] = "cppregex";
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struct nhregex {
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std::unique_ptr<std::regex> re;
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std::unique_ptr<std::regex_error> err;
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};
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struct nhregex *
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regex_init(void)
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{
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return new nhregex;
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}
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boolean
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regex_compile(const char *s, struct nhregex *re)
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{
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if (!re)
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return FALSE;
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try {
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re->re.reset(new std::regex(s, (std::regex::extended
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| std::regex::nosubs
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| std::regex::optimize)));
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re->err.reset(nullptr);
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return TRUE;
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} catch (const std::regex_error& err) {
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re->err.reset(new std::regex_error(err));
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re->re.reset(nullptr);
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return FALSE;
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}
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}
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char *
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regex_error_desc(struct nhregex *re, char *errbuf)
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{
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if (!re) {
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Strcpy(errbuf, "no regexp");
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} else if (!re->err) {
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Strcpy(errbuf, "no explanation");
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} else {
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errbuf[0] = '\0';
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(void) strncat(errbuf, re->err->what(), BUFSZ - 1);
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if (!errbuf[0])
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Strcpy(errbuf, "unspecified regexp error");
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}
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return errbuf;
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}
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boolean
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regex_match(const char *s, struct nhregex *re)
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{
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if (!re->re)
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return false;
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try {
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return regex_search(s, *re->re, std::regex_constants::match_any);
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} catch (const std::regex_error& err) {
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return false;
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}
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}
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void
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regex_free(struct nhregex *re)
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{
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delete re;
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}
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#undef CPPREGEX_C
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} // extern "C"
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/*cppregex.cpp*/
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