帮助在 C++ 中使用 PCRE
这是我第一次尝试构建 C++ 应用程序,所以我有点迷失。我看过一些例子,但我仍然不知道出了什么问题。
#include <iostream>
#include <stdio.h>
#include <windows.h>
#include <pcrecpp.h>
#include <string>
#include <cstring>
using namespace std;
int main()
{
char title[256];
char url[256];
string song, diff;
HWND hwnd = FindWindow("WindowsForms10.Window.8.app.0.33c0d9d", NULL);
GetWindowTextA(hwnd, title, 255);
pcrecpp::RE re("^osu! - (.*) \\[(.*)\\] \\[[|-]{21}\\]$");
re.FullMatch(title, &song, &diff);
sprintf(url, "xfire:game_stats?game=%s&%s=%s&%s=%s", "osu", "Playing", song.c_str(), "Difficulty", diff.c_str());
ShellExecute(NULL, NULL, url, NULL, NULL, SW_SHOWDEFAULT);
return 0;
}
当我尝试编译时,出现以下编译器错误
obj\Debug\main.o||In function 'main':| C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|对“_imp___ZN7pcrecpp2RE6no_argE”的未定义引用| C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|对“_imp___ZN7pcrecpp2RE6no_argE”的未定义引用| C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|对“_imp___ZN7pcrecpp2RE6no_argE”的未定义引用| C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|对“_imp___ZN7pcrecpp2RE6no_argE”的未定义引用| C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|对“_imp___ZN7pcrecpp2RE6no_argE”的未定义引用| obj\Debug\main.o:C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|更多对“_imp___ZN7pcrecpp2RE6no_argE”的未定义引用如下| obj\Debug\main.o||在函数“main”中:| C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|对'_imp___ZNK7pcrecpp2RE9FullMatchERKNS_11StringPieceERKNS_3ArgES6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_'的未定义引用| C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|17|对“_imp___ZN7pcrecpp2RED1Ev”的未定义引用| C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|17|对“_imp___ZN7pcrecpp2RED1Ev”的未定义引用| obj\Debug\main.o||在函数“Arg”中:| C:\MinGW\msys\1.0\local\include\pcrecpparg.h|89|对“_imp___ZN7pcrecpp3Arg12parse_stringEPKciPv”的未定义引用| obj\Debug\main.o||在函数“RE”中:| C:\MinGW\msys\1.0\local\include\pcrecpp.h|493|对“_imp___ZN7pcrecpp2RE4InitERKSsPKNS_10RE_OptionsE”的未定义引用| ||=== 构建完成:11 个错误,0 个警告 ===|
this is my first time trying to build a C++ application, so I'm kind of lost. I've looked at some examples but I still dont really know what's wrong.
#include <iostream>
#include <stdio.h>
#include <windows.h>
#include <pcrecpp.h>
#include <string>
#include <cstring>
using namespace std;
int main()
{
char title[256];
char url[256];
string song, diff;
HWND hwnd = FindWindow("WindowsForms10.Window.8.app.0.33c0d9d", NULL);
GetWindowTextA(hwnd, title, 255);
pcrecpp::RE re("^osu! - (.*) \\[(.*)\\] \\[[|-]{21}\\]$");
re.FullMatch(title, &song, &diff);
sprintf(url, "xfire:game_stats?game=%s&%s=%s&%s=%s", "osu", "Playing", song.c_str(), "Difficulty", diff.c_str());
ShellExecute(NULL, NULL, url, NULL, NULL, SW_SHOWDEFAULT);
return 0;
}
When I try to compile, I get the following compiler errors
obj\Debug\main.o||In function 'main':|
C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|undefined reference to '_imp___ZN7pcrecpp2RE6no_argE'|
C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|undefined reference to '_imp___ZN7pcrecpp2RE6no_argE'|
C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|undefined reference to '_imp___ZN7pcrecpp2RE6no_argE'|
C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|undefined reference to '_imp___ZN7pcrecpp2RE6no_argE'|
C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|undefined reference to '_imp___ZN7pcrecpp2RE6no_argE'|
obj\Debug\main.o:C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|more undefined references to '_imp___ZN7pcrecpp2RE6no_argE' follow|
obj\Debug\main.o||In function 'main':|
C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|18|undefined reference to '_imp___ZNK7pcrecpp2RE9FullMatchERKNS_11StringPieceERKNS_3ArgES6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_S6_'|
C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|17|undefined reference to '_imp___ZN7pcrecpp2RED1Ev'|
C:\Users\Zeffy\Desktop\osu-gamestats\main.cpp|17|undefined reference to '_imp___ZN7pcrecpp2RED1Ev'|
obj\Debug\main.o||In function 'Arg':|
C:\MinGW\msys\1.0\local\include\pcrecpparg.h|89|undefined reference to '_imp___ZN7pcrecpp3Arg12parse_stringEPKciPv'|
obj\Debug\main.o||In function 'RE':|
C:\MinGW\msys\1.0\local\include\pcrecpp.h|493|undefined reference to '_imp___ZN7pcrecpp2RE4InitERKSsPKNS_10RE_OptionsE'|
||=== Build finished: 11 errors, 0 warnings ===|
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_imp___ZN7pcrecpp2RE6no_argE
是一个损坏的名称。由于它包含pcrecpp
和no_arg
部分,我怀疑问题在于您无法链接到 Pcrecpp。因此,没有定义no_arg
符号。_imp___ZN7pcrecpp2RE6no_argE
is a mangled name. Since it contains the partspcrecpp
andno_arg
, I suspect that the problem is that you fail to link against Pcrecpp. Therefore, theno_arg
symbol is not defined.