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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build unix || (js && wasm) || wasip1
package os
const (
PathSeparator = '/' // OS-specific path separator
PathListSeparator = ':' // OS-specific path list separator
)
// IsPathSeparator reports whether c is a directory separator character.
func IsPathSeparator(c uint8) bool {
return PathSeparator == c
}
// basename removes trailing slashes and the leading directory name from path name.
func basename(name string) string {
i := len(name) - 1
// Remove trailing slashes
for ; i > 0 && name[i] == '/'; i-- {
name = name[:i]
}
// Remove leading directory name
for i--; i >= 0; i-- {
if name[i] == '/' {
name = name[i+1:]
break
}
}
return name
}
// splitPath returns the base name and parent directory.
func splitPath(path string) (string, string) {
// if no better parent is found, the path is relative from "here"
dirname := "."
// Remove all but one leading slash.
for len(path) > 1 && path[0] == '/' && path[1] == '/' {
path = path[1:]
}
i := len(path) - 1
// Remove trailing slashes.
for ; i > 0 && path[i] == '/'; i-- {
path = path[:i]
}
// if no slashes in path, base is path
basename := path
// Remove leading directory path
for i--; i >= 0; i-- {
if path[i] == '/' {
if i == 0 {
dirname = path[:1]
} else {
dirname = path[:i]
}
basename = path[i+1:]
break
}
}
return dirname, basename
}
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