62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/**
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* @file CPath.cpp
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* @author apio (cloudapio.eu)
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* @brief Basic operations on paths using C-style strings.
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*
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* @copyright Copyright (c) 2023, the Luna authors.
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*
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*/
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#include <luna/CPath.h>
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#include <luna/CString.h>
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static char dot[] = ".";
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extern "C"
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{
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char* basename(char* path)
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{
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// If path is NULL, or the string's length is 0, return .
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if (!path) return dot;
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usize len = strlen(path);
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if (!len) return dot;
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// Strip trailing slashes.
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char* it = path + len - 1;
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while (*it == '/' && it != path) { it--; }
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*(it + 1) = 0;
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if (it == path) return path;
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// Return path from the first character if there are no more slashes, or from the first character after the last
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// slash.
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char* beg = strrchr(path, '/');
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if (!beg) return path;
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return beg + 1;
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}
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char* dirname(char* path)
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{
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// If path is NULL, or the string's length is 0, return .
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if (!path) return dot;
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usize len = strlen(path);
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if (!len) return dot;
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if (len == 1 && *path != '/') return dot;
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// Strip trailing slashes.
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char* it = path + len - 1;
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while (*it == '/' && it != path) { it--; }
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*(char*)(it + 1) = 0;
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if (it == path) return path;
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// Search for the last slash. If there is none, return .
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// Otherwise, we end the string there and return.
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char* end = strrchr(path, '/');
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if (!end) return dot;
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if (end != path) *end = 0;
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else
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*(end + 1) = 0;
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return path;
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}
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}
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