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libhv

cpputil

hpath.cpp

hpath.cpp 2.76 KB

#include "hpath.h"

#include "hplatform.h"

bool HPath::exists(const char* path) {
 return access(path, 0) == 0;
}

bool HPath::isdir(const char* path) {
 if (access(path, 0) != 0) return false;
 struct stat st;
 memset(&st, 0, sizeof(st));
 stat(path, &st);
 return S_ISDIR(st.st_mode);
}

bool HPath::isfile(const char* path) {
 if (access(path, 0) != 0) return false;
 struct stat st;
 memset(&st, 0, sizeof(st));
 stat(path, &st);
 return S_ISREG(st.st_mode);
}

bool HPath::islink(const char* path) {
#ifdef OS_WIN
 return HPath::isdir(path) && (GetFileAttributesA(path) & FILE_ATTRIBUTE_REPARSE_POINT);
#else
 if (access(path, 0) != 0) return false;
 struct stat st;
 memset(&st, 0, sizeof(st));
 lstat(path, &st);
 return S_ISLNK(st.st_mode);
#endif
}

std::string HPath::basename(const std::string& filepath) {
 std::string::size_type pos1 = filepath.find_last_not_of("/\\");
 if (pos1 == std::string::npos) {
 return "/";
 }
 std::string::size_type pos2 = filepath.find_last_of("/\\", pos1);
 if (pos2 == std::string::npos) {
 pos2 = 0;
 } else {
 pos2++;
 }

return filepath.substr(pos2, pos1-pos2+1);
}

std::string HPath::dirname(const std::string& filepath) {
 std::string::size_type pos1 = filepath.find_last_not_of("/\\");
 if (pos1 == std::string::npos) {
 return "/";
 }
 std::string::size_type pos2 = filepath.find_last_of("/\\", pos1);
 if (pos2 == std::string::npos) {
 return ".";
 } else if (pos2 == 0) {
 pos2 = 1;
 }

return filepath.substr(0, pos2);
}

std::string HPath::filename(const std::string& filepath) {
 std::string::size_type pos1 = filepath.find_last_of("/\\");
 if (pos1 == std::string::npos) {
 pos1 = 0;
 } else {
 pos1++;
 }
 std::string file = filepath.substr(pos1);

std::string::size_type pos2 = file.find_last_of(".");
 if (pos2 == std::string::npos) {
 return file;
 }
 return file.substr(0, pos2);
}

std::string HPath::suffixname(const std::string& filepath) {
 std::string::size_type pos1 = filepath.find_last_of("/\\");
 if (pos1 == std::string::npos) {
 pos1 = 0;
 } else {
 pos1++;
 }
 std::string file = filepath.substr(pos1);

std::string::size_type pos2 = file.find_last_of(".");
 if (pos2 == std::string::npos) {
 return "";
 }
 return file.substr(pos2+1);
}

std::string HPath::join(const std::string& dir, const std::string& filename) {
 char separator = '/';
#ifdef OS_WIN
 if (dir.find_first_of("\\") != std::string::npos) {
 separator = '\\';
 }
#endif
 std::string filepath(dir);
 if (dir[dir.length()-1] != separator) {
 filepath += separator;
 }
 filepath += filename;
 return filepath;
}

Copy Edit Raw Blame History

fuzhufang authored 2024年06月18日 19:17 +08:00 . Some small optimizations (#570)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112

#include "hpath.h"

#include "hplatform.h"

bool HPath::exists(const char* path) {
 return access(path, 0) == 0;
}

bool HPath::isdir(const char* path) {
 if (access(path, 0) != 0) return false;
 struct stat st;
 memset(&st, 0, sizeof(st));
 stat(path, &st);
 return S_ISDIR(st.st_mode);
}

bool HPath::isfile(const char* path) {
 if (access(path, 0) != 0) return false;
 struct stat st;
 memset(&st, 0, sizeof(st));
 stat(path, &st);
 return S_ISREG(st.st_mode);
}

bool HPath::islink(const char* path) {
#ifdef OS_WIN
 return HPath::isdir(path) && (GetFileAttributesA(path) & FILE_ATTRIBUTE_REPARSE_POINT);
#else
 if (access(path, 0) != 0) return false;
 struct stat st;
 memset(&st, 0, sizeof(st));
 lstat(path, &st);
 return S_ISLNK(st.st_mode);
#endif
}

std::string HPath::basename(const std::string& filepath) {
 std::string::size_type pos1 = filepath.find_last_not_of("/\\");
 if (pos1 == std::string::npos) {
 return "/";
 }
 std::string::size_type pos2 = filepath.find_last_of("/\\", pos1);
 if (pos2 == std::string::npos) {
 pos2 = 0;
 } else {
 pos2++;
 }

 return filepath.substr(pos2, pos1-pos2+1);
}

std::string HPath::dirname(const std::string& filepath) {
 std::string::size_type pos1 = filepath.find_last_not_of("/\\");
 if (pos1 == std::string::npos) {
 return "/";
 }
 std::string::size_type pos2 = filepath.find_last_of("/\\", pos1);
 if (pos2 == std::string::npos) {
 return ".";
 } else if (pos2 == 0) {
 pos2 = 1;
 }

 return filepath.substr(0, pos2);
}

std::string HPath::filename(const std::string& filepath) {
 std::string::size_type pos1 = filepath.find_last_of("/\\");
 if (pos1 == std::string::npos) {
 pos1 = 0;
 } else {
 pos1++;
 }
 std::string file = filepath.substr(pos1);

 std::string::size_type pos2 = file.find_last_of(".");
 if (pos2 == std::string::npos) {
 return file;
 }
 return file.substr(0, pos2);
}

std::string HPath::suffixname(const std::string& filepath) {
 std::string::size_type pos1 = filepath.find_last_of("/\\");
 if (pos1 == std::string::npos) {
 pos1 = 0;
 } else {
 pos1++;
 }
 std::string file = filepath.substr(pos1);

 std::string::size_type pos2 = file.find_last_of(".");
 if (pos2 == std::string::npos) {
 return "";
 }
 return file.substr(pos2+1);
}

std::string HPath::join(const std::string& dir, const std::string& filename) {
 char separator = '/';
#ifdef OS_WIN
 if (dir.find_first_of("\\") != std::string::npos) {
 separator = '\\';
 }
#endif
 std::string filepath(dir);
 if (dir[dir.length()-1] != separator) {
 filepath += separator;
 }
 filepath += filename;
 return filepath;
}