74 lines
2 KiB
Rust
74 lines
2 KiB
Rust
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import os::getcwd;
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import os_fs;
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import str;
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native "rust" mod rustrt {
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fn rust_file_is_dir(path: str) -> int;
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}
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fn path_sep() -> str { ret str::from_char(os_fs::path_sep); }
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type path = str;
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fn dirname(p: path) -> path {
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let i: int = str::rindex(p, os_fs::path_sep as u8);
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if i == -1 {
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i = str::rindex(p, os_fs::alt_path_sep as u8);
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if i == -1 { ret "."; }
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}
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ret str::substr(p, 0u, i as uint);
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}
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fn basename(p: path) -> path {
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let i: int = str::rindex(p, os_fs::path_sep as u8);
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if i == -1 {
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i = str::rindex(p, os_fs::alt_path_sep as u8);
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if i == -1 { ret p; }
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}
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let len = str::byte_len(p);
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if i + 1 as uint >= len { ret p; }
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ret str::slice(p, i + 1 as uint, len);
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}
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// FIXME: Need some typestate to avoid bounds check when len(pre) == 0
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fn connect(pre: path, post: path) -> path {
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let len = str::byte_len(pre);
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ret if pre.(len - 1u) == os_fs::path_sep as u8 {
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// Trailing '/'?
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pre + post
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} else { pre + path_sep() + post };
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}
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fn file_is_dir(p: path) -> bool { ret rustrt::rust_file_is_dir(p) != 0; }
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fn list_dir(p: path) -> [str] {
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let pl = str::byte_len(p);
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if pl == 0u || p.(pl - 1u) as char != os_fs::path_sep { p += path_sep(); }
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let full_paths: [str] = ~[];
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for filename: str in os_fs::list_dir(p) {
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if !str::eq(filename, ".") {
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if !str::eq(filename, "..") { full_paths += ~[p + filename]; }
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}
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}
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ret full_paths;
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}
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fn path_is_absolute(p: path) -> bool { ret os_fs::path_is_absolute(p); }
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// FIXME: under Windows, we should prepend the current drive letter to paths
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// that start with a slash.
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fn make_absolute(p: path) -> path {
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if path_is_absolute(p) { ret p; } else { ret connect(getcwd(), p); }
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}
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// Local Variables:
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// mode: rust;
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// compile-command: "make -k -C $RBUILD 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
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// End:
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