rust/src/libcore/path.rs
bors 48f50ac800 auto merge of #6107 : catamorphism/rust/mkdir_recursive, r=brson
r? @brson This hopefully addresses your concerns about the termination condition, and adds more tests. With a bonus documentation commit.
2013-04-29 20:48:37 -07:00

1175 lines
33 KiB
Rust

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
/*!
Cross-platform file path handling
*/
use cmp::Eq;
use libc;
use option::{None, Option, Some};
use str;
use to_str::ToStr;
use ascii::{AsciiCast, AsciiStr};
#[cfg(windows)]
pub use Path = self::WindowsPath;
#[cfg(unix)]
pub use Path = self::PosixPath;
#[deriving(Clone, Eq)]
pub struct WindowsPath {
host: Option<~str>,
device: Option<~str>,
is_absolute: bool,
components: ~[~str],
}
pub fn WindowsPath(s: &str) -> WindowsPath {
GenericPath::from_str(s)
}
#[deriving(Clone, Eq)]
pub struct PosixPath {
is_absolute: bool,
components: ~[~str],
}
pub fn PosixPath(s: &str) -> PosixPath {
GenericPath::from_str(s)
}
pub trait GenericPath {
/// Converts a string to a Path
fn from_str(&str) -> Self;
/// Returns the directory component of `self`, as a string
fn dirname(&self) -> ~str;
/// Returns the file component of `self`, as a string option.
/// Returns None if `self` names a directory.
fn filename(&self) -> Option<~str>;
/// Returns the stem of the file component of `self`, as a string option.
/// The stem is the slice of a filename starting at 0 and ending just before
/// the last '.' in the name.
/// Returns None if `self` names a directory.
fn filestem(&self) -> Option<~str>;
/// Returns the type of the file component of `self`, as a string option.
/// The file type is the slice of a filename starting just after the last
/// '.' in the name and ending at the last index in the filename.
/// Returns None if `self` names a directory.
fn filetype(&self) -> Option<~str>;
/// Returns a new path consisting of `self` with the parent directory component replaced
/// with the given string.
fn with_dirname(&self, (&str)) -> Self;
/// Returns a new path consisting of `self` with the file component replaced
/// with the given string.
fn with_filename(&self, (&str)) -> Self;
/// Returns a new path consisting of `self` with the file stem replaced
/// with the given string.
fn with_filestem(&self, (&str)) -> Self;
/// Returns a new path consisting of `self` with the file type replaced
/// with the given string.
fn with_filetype(&self, (&str)) -> Self;
/// Returns the directory component of `self`, as a new path.
/// If `self` has no parent, returns `self`.
fn dir_path(&self) -> Self;
/// Returns the file component of `self`, as a new path.
/// If `self` names a directory, returns the empty path.
fn file_path(&self) -> Self;
/// Returns a new Path whose parent directory is `self` and whose
/// file component is the given string.
fn push(&self, (&str)) -> Self;
/// Returns a new Path consisting of the given path, made relative to `self`.
fn push_rel(&self, (&Self)) -> Self;
/// Returns a new Path consisting of the path given by the given vector
/// of strings, relative to `self`.
fn push_many(&self, (&[~str])) -> Self;
/// Identical to `dir_path` except in the case where `self` has only one
/// component. In this case, `pop` returns the empty path.
fn pop(&self) -> Self;
/// The same as `push_rel`, except that the directory argument must not
/// contain directory separators in any of its components.
fn unsafe_join(&self, (&Self)) -> Self;
/// On Unix, always returns false. On Windows, returns true iff `self`'s
/// file stem is one of: `con` `aux` `com1` `com2` `com3` `com4`
/// `lpt1` `lpt2` `lpt3` `prn` `nul`
fn is_restricted(&self) -> bool;
/// Returns a new path that names the same file as `self`, without containing
/// any '.', '..', or empty components. On Windows, uppercases the drive letter
/// as well.
fn normalize(&self) -> Self;
/// Returns `true` if `self` is an absolute path.
fn is_absolute(&self) -> bool;
}
#[cfg(target_os = "linux")]
#[cfg(target_os = "android")]
mod stat {
#[cfg(target_arch = "x86")]
#[cfg(target_arch = "arm")]
#[cfg(target_arch = "mips")]
pub mod arch {
use libc;
pub fn default_stat() -> libc::stat {
libc::stat {
st_dev: 0,
__pad1: 0,
st_ino: 0,
st_mode: 0,
st_nlink: 0,
st_uid: 0,
st_gid: 0,
st_rdev: 0,
__pad2: 0,
st_size: 0,
st_blksize: 0,
st_blocks: 0,
st_atime: 0,
st_atime_nsec: 0,
st_mtime: 0,
st_mtime_nsec: 0,
st_ctime: 0,
st_ctime_nsec: 0,
__unused4: 0,
__unused5: 0,
}
}
}
#[cfg(target_arch = "x86_64")]
pub mod arch {
use libc;
pub fn default_stat() -> libc::stat {
libc::stat {
st_dev: 0,
st_ino: 0,
st_nlink: 0,
st_mode: 0,
st_uid: 0,
st_gid: 0,
__pad0: 0,
st_rdev: 0,
st_size: 0,
st_blksize: 0,
st_blocks: 0,
st_atime: 0,
st_atime_nsec: 0,
st_mtime: 0,
st_mtime_nsec: 0,
st_ctime: 0,
st_ctime_nsec: 0,
__unused: [0, 0, 0],
}
}
}
}
#[cfg(target_os = "freebsd")]
mod stat {
#[cfg(target_arch = "x86_64")]
pub mod arch {
use libc;
pub fn default_stat() -> libc::stat {
libc::stat {
st_dev: 0,
st_ino: 0,
st_mode: 0,
st_nlink: 0,
st_uid: 0,
st_gid: 0,
st_rdev: 0,
st_atime: 0,
st_atime_nsec: 0,
st_mtime: 0,
st_mtime_nsec: 0,
st_ctime: 0,
st_ctime_nsec: 0,
st_size: 0,
st_blocks: 0,
st_blksize: 0,
st_flags: 0,
st_gen: 0,
st_lspare: 0,
st_birthtime: 0,
st_birthtime_nsec: 0,
__unused: [0, 0],
}
}
}
}
#[cfg(target_os = "macos")]
mod stat {
pub mod arch {
use libc;
pub fn default_stat() -> libc::stat {
libc::stat {
st_dev: 0,
st_mode: 0,
st_nlink: 0,
st_ino: 0,
st_uid: 0,
st_gid: 0,
st_rdev: 0,
st_atime: 0,
st_atime_nsec: 0,
st_mtime: 0,
st_mtime_nsec: 0,
st_ctime: 0,
st_ctime_nsec: 0,
st_birthtime: 0,
st_birthtime_nsec: 0,
st_size: 0,
st_blocks: 0,
st_blksize: 0,
st_flags: 0,
st_gen: 0,
st_lspare: 0,
st_qspare: [0, 0],
}
}
}
}
#[cfg(target_os = "win32")]
mod stat {
pub mod arch {
use libc;
pub fn default_stat() -> libc::stat {
libc::stat {
st_dev: 0,
st_ino: 0,
st_mode: 0,
st_nlink: 0,
st_uid: 0,
st_gid: 0,
st_rdev: 0,
st_size: 0,
st_atime: 0,
st_mtime: 0,
st_ctime: 0,
}
}
}
}
pub impl Path {
fn stat(&self) -> Option<libc::stat> {
unsafe {
do str::as_c_str(self.to_str()) |buf| {
let mut st = stat::arch::default_stat();
let r = libc::stat(buf, &mut st);
if r == 0 { Some(st) } else { None }
}
}
}
#[cfg(unix)]
fn lstat(&self) -> Option<libc::stat> {
unsafe {
do str::as_c_str(self.to_str()) |buf| {
let mut st = stat::arch::default_stat();
let r = libc::lstat(buf, &mut st);
if r == 0 { Some(st) } else { None }
}
}
}
fn exists(&self) -> bool {
match self.stat() {
None => false,
Some(_) => true,
}
}
fn get_size(&self) -> Option<i64> {
match self.stat() {
None => None,
Some(ref st) => Some(st.st_size as i64),
}
}
fn get_mode(&self) -> Option<uint> {
match self.stat() {
None => None,
Some(ref st) => Some(st.st_mode as uint),
}
}
}
#[cfg(target_os = "freebsd")]
#[cfg(target_os = "linux")]
#[cfg(target_os = "macos")]
pub impl Path {
fn get_atime(&self) -> Option<(i64, int)> {
match self.stat() {
None => None,
Some(ref st) => {
Some((st.st_atime as i64,
st.st_atime_nsec as int))
}
}
}
fn get_mtime(&self) -> Option<(i64, int)> {
match self.stat() {
None => None,
Some(ref st) => {
Some((st.st_mtime as i64,
st.st_mtime_nsec as int))
}
}
}
fn get_ctime(&self) -> Option<(i64, int)> {
match self.stat() {
None => None,
Some(ref st) => {
Some((st.st_ctime as i64,
st.st_ctime_nsec as int))
}
}
}
}
#[cfg(target_os = "freebsd")]
#[cfg(target_os = "macos")]
pub impl Path {
fn get_birthtime(&self) -> Option<(i64, int)> {
match self.stat() {
None => None,
Some(ref st) => {
Some((st.st_birthtime as i64,
st.st_birthtime_nsec as int))
}
}
}
}
#[cfg(target_os = "win32")]
pub impl Path {
fn get_atime(&self) -> Option<(i64, int)> {
match self.stat() {
None => None,
Some(ref st) => {
Some((st.st_atime as i64, 0))
}
}
}
fn get_mtime(&self) -> Option<(i64, int)> {
match self.stat() {
None => None,
Some(ref st) => {
Some((st.st_mtime as i64, 0))
}
}
}
fn get_ctime(&self) -> Option<(i64, int)> {
match self.stat() {
None => None,
Some(ref st) => {
Some((st.st_ctime as i64, 0))
}
}
}
}
impl ToStr for PosixPath {
fn to_str(&self) -> ~str {
let mut s = ~"";
if self.is_absolute {
s += "/";
}
s + str::connect(self.components, "/")
}
}
// FIXME (#3227): when default methods in traits are working, de-duplicate
// PosixPath and WindowsPath, most of their methods are common.
impl GenericPath for PosixPath {
fn from_str(s: &str) -> PosixPath {
let mut components = ~[];
for str::each_split_nonempty(s, |c| c == '/') |s| {
components.push(s.to_owned())
}
let is_absolute = (s.len() != 0 && s[0] == '/' as u8);
return PosixPath { is_absolute: is_absolute,
components: components }
}
fn dirname(&self) -> ~str {
let s = self.dir_path().to_str();
if s.len() == 0 {
~"."
} else {
s
}
}
fn filename(&self) -> Option<~str> {
match self.components.len() {
0 => None,
n => Some(copy self.components[n - 1])
}
}
fn filestem(&self) -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) => Some(f.slice(0, p).to_owned()),
None => Some(copy *f)
}
}
}
}
fn filetype(&self) -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) if p < f.len() => Some(f.slice(p, f.len()).to_owned()),
_ => None
}
}
}
}
fn with_dirname(&self, d: &str) -> PosixPath {
let dpath = PosixPath(d);
match self.filename() {
Some(ref f) => dpath.push(*f),
None => dpath
}
}
fn with_filename(&self, f: &str) -> PosixPath {
assert!(! str::any(f, |c| windows::is_sep(c as u8)));
self.dir_path().push(f)
}
fn with_filestem(&self, s: &str) -> PosixPath {
match self.filetype() {
None => self.with_filename(s),
Some(ref t) => self.with_filename(str::from_slice(s) + *t)
}
}
fn with_filetype(&self, t: &str) -> PosixPath {
if t.len() == 0 {
match self.filestem() {
None => copy *self,
Some(ref s) => self.with_filename(*s)
}
} else {
let t = ~"." + str::from_slice(t);
match self.filestem() {
None => self.with_filename(t),
Some(ref s) => self.with_filename(*s + t)
}
}
}
fn dir_path(&self) -> PosixPath {
if self.components.len() != 0 {
self.pop()
} else {
copy *self
}
}
fn file_path(&self) -> PosixPath {
let cs = match self.filename() {
None => ~[],
Some(ref f) => ~[copy *f]
};
return PosixPath { is_absolute: false,
components: cs }
}
fn push_rel(&self, other: &PosixPath) -> PosixPath {
assert!(!other.is_absolute);
self.push_many(other.components)
}
fn unsafe_join(&self, other: &PosixPath) -> PosixPath {
if other.is_absolute {
PosixPath { is_absolute: true,
components: copy other.components }
} else {
self.push_rel(other)
}
}
fn is_restricted(&self) -> bool {
false
}
fn push_many(&self, cs: &[~str]) -> PosixPath {
let mut v = copy self.components;
for cs.each |e| {
let mut ss = ~[];
for str::each_split_nonempty(*e, |c| windows::is_sep(c as u8)) |s| {
ss.push(s.to_owned())
}
v.push_all_move(ss);
}
PosixPath { is_absolute: self.is_absolute,
components: v }
}
fn push(&self, s: &str) -> PosixPath {
let mut v = copy self.components;
let mut ss = ~[];
for str::each_split_nonempty(s, |c| windows::is_sep(c as u8)) |s| {
ss.push(s.to_owned())
}
v.push_all_move(ss);
PosixPath { components: v, ..copy *self }
}
fn pop(&self) -> PosixPath {
let mut cs = copy self.components;
if cs.len() != 0 {
cs.pop();
}
return PosixPath {
is_absolute: self.is_absolute,
components: cs
}
//..self }
}
fn normalize(&self) -> PosixPath {
return PosixPath {
is_absolute: self.is_absolute,
components: normalize(self.components)
// ..self
}
}
fn is_absolute(&self) -> bool {
self.is_absolute
}
}
impl ToStr for WindowsPath {
fn to_str(&self) -> ~str {
let mut s = ~"";
match self.host {
Some(ref h) => { s += "\\\\"; s += *h; }
None => { }
}
match self.device {
Some(ref d) => { s += *d; s += ":"; }
None => { }
}
if self.is_absolute {
s += "\\";
}
s + str::connect(self.components, "\\")
}
}
impl GenericPath for WindowsPath {
fn from_str(s: &str) -> WindowsPath {
let host;
let device;
let rest;
match windows::extract_drive_prefix(s) {
Some((ref d, ref r)) => {
host = None;
device = Some(copy *d);
rest = copy *r;
}
None => {
match windows::extract_unc_prefix(s) {
Some((ref h, ref r)) => {
host = Some(copy *h);
device = None;
rest = copy *r;
}
None => {
host = None;
device = None;
rest = str::from_slice(s);
}
}
}
}
let mut components = ~[];
for str::each_split_nonempty(rest, |c| windows::is_sep(c as u8)) |s| {
components.push(s.to_owned())
}
let is_absolute = (rest.len() != 0 && windows::is_sep(rest[0]));
return WindowsPath { host: host,
device: device,
is_absolute: is_absolute,
components: components }
}
fn dirname(&self) -> ~str {
let s = self.dir_path().to_str();
if s.len() == 0 {
~"."
} else {
s
}
}
fn filename(&self) -> Option<~str> {
match self.components.len() {
0 => None,
n => Some(copy self.components[n - 1])
}
}
fn filestem(&self) -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) => Some(f.slice(0, p).to_owned()),
None => Some(copy *f)
}
}
}
}
fn filetype(&self) -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) if p < f.len() => Some(f.slice(p, f.len()).to_owned()),
_ => None
}
}
}
}
fn with_dirname(&self, d: &str) -> WindowsPath {
let dpath = WindowsPath(d);
match self.filename() {
Some(ref f) => dpath.push(*f),
None => dpath
}
}
fn with_filename(&self, f: &str) -> WindowsPath {
assert!(! str::any(f, |c| windows::is_sep(c as u8)));
self.dir_path().push(f)
}
fn with_filestem(&self, s: &str) -> WindowsPath {
match self.filetype() {
None => self.with_filename(s),
Some(ref t) => self.with_filename(str::from_slice(s) + *t)
}
}
fn with_filetype(&self, t: &str) -> WindowsPath {
if t.len() == 0 {
match self.filestem() {
None => copy *self,
Some(ref s) => self.with_filename(*s)
}
} else {
let t = ~"." + str::from_slice(t);
match self.filestem() {
None => self.with_filename(t),
Some(ref s) =>
self.with_filename(*s + t)
}
}
}
fn dir_path(&self) -> WindowsPath {
if self.components.len() != 0 {
self.pop()
} else {
copy *self
}
}
fn file_path(&self) -> WindowsPath {
let cs = match self.filename() {
None => ~[],
Some(ref f) => ~[copy *f]
};
return WindowsPath { host: None,
device: None,
is_absolute: false,
components: cs }
}
fn push_rel(&self, other: &WindowsPath) -> WindowsPath {
assert!(!other.is_absolute);
self.push_many(other.components)
}
fn unsafe_join(&self, other: &WindowsPath) -> WindowsPath {
/* rhs not absolute is simple push */
if !other.is_absolute {
return self.push_many(other.components);
}
/* if rhs has a host set, then the whole thing wins */
match other.host {
Some(copy host) => {
return WindowsPath {
host: Some(host),
device: copy other.device,
is_absolute: true,
components: copy other.components
};
}
_ => {}
}
/* if rhs has a device set, then a part wins */
match other.device {
Some(copy device) => {
return WindowsPath {
host: None,
device: Some(device),
is_absolute: true,
components: copy other.components
};
}
_ => {}
}
/* fallback: host and device of lhs win, but the
whole path of the right */
WindowsPath {
host: copy self.host,
device: copy self.device,
is_absolute: self.is_absolute || other.is_absolute,
components: copy other.components
}
}
fn is_restricted(&self) -> bool {
match self.filestem() {
Some(stem) => {
// FIXME: #4318 Instead of to_ascii and to_str_ascii, could use
// to_ascii_consume and to_str_consume to not do a unnecessary copy.
match stem.to_ascii().to_lower().to_str_ascii() {
~"con" | ~"aux" | ~"com1" | ~"com2" | ~"com3" | ~"com4" |
~"lpt1" | ~"lpt2" | ~"lpt3" | ~"prn" | ~"nul" => true,
_ => false
}
},
None => false
}
}
fn push_many(&self, cs: &[~str]) -> WindowsPath {
let mut v = copy self.components;
for cs.each |e| {
let mut ss = ~[];
for str::each_split_nonempty(*e, |c| windows::is_sep(c as u8)) |s| {
ss.push(s.to_owned())
}
v.push_all_move(ss);
}
// tedious, but as-is, we can't use ..self
return WindowsPath {
host: copy self.host,
device: copy self.device,
is_absolute: self.is_absolute,
components: v
}
}
fn push(&self, s: &str) -> WindowsPath {
let mut v = copy self.components;
let mut ss = ~[];
for str::each_split_nonempty(s, |c| windows::is_sep(c as u8)) |s| {
ss.push(s.to_owned())
}
v.push_all_move(ss);
return WindowsPath { components: v, ..copy *self }
}
fn pop(&self) -> WindowsPath {
let mut cs = copy self.components;
if cs.len() != 0 {
cs.pop();
}
return WindowsPath {
host: copy self.host,
device: copy self.device,
is_absolute: self.is_absolute,
components: cs
}
}
fn normalize(&self) -> WindowsPath {
return WindowsPath {
host: copy self.host,
device: match self.device {
None => None,
// FIXME: #4318 Instead of to_ascii and to_str_ascii, could use
// to_ascii_consume and to_str_consume to not do a unnecessary copy.
Some(ref device) => Some(device.to_ascii().to_upper().to_str_ascii())
},
is_absolute: self.is_absolute,
components: normalize(self.components)
}
}
fn is_absolute(&self) -> bool {
self.is_absolute
}
}
pub fn normalize(components: &[~str]) -> ~[~str] {
let mut cs = ~[];
for components.each |c| {
if *c == ~"." && components.len() > 1 { loop; }
if *c == ~"" { loop; }
if *c == ~".." && cs.len() != 0 {
cs.pop();
loop;
}
cs.push(copy *c);
}
cs
}
// Various windows helpers, and tests for the impl.
pub mod windows {
use libc;
use option::{None, Option, Some};
#[inline(always)]
pub fn is_sep(u: u8) -> bool {
u == '/' as u8 || u == '\\' as u8
}
pub fn extract_unc_prefix(s: &str) -> Option<(~str,~str)> {
if (s.len() > 1 &&
(s[0] == '\\' as u8 || s[0] == '/' as u8) &&
s[0] == s[1]) {
let mut i = 2;
while i < s.len() {
if is_sep(s[i]) {
let pre = s.slice(2, i).to_owned();
let rest = s.slice(i, s.len()).to_owned();
return Some((pre, rest));
}
i += 1;
}
}
None
}
pub fn extract_drive_prefix(s: &str) -> Option<(~str,~str)> {
unsafe {
if (s.len() > 1 &&
libc::isalpha(s[0] as libc::c_int) != 0 &&
s[1] == ':' as u8) {
let rest = if s.len() == 2 {
~""
} else {
s.slice(2, s.len()).to_owned()
};
return Some((s.slice(0,1).to_owned(), rest));
}
None
}
}
}
#[cfg(test)]
mod tests {
use option::{None, Some};
use path::{PosixPath, WindowsPath, windows};
use str;
#[test]
fn test_double_slash_collapsing() {
let path = PosixPath("tmp/");
let path = path.push("/hmm");
let path = path.normalize();
assert!(~"tmp/hmm" == path.to_str());
let path = WindowsPath("tmp/");
let path = path.push("/hmm");
let path = path.normalize();
assert!(~"tmp\\hmm" == path.to_str());
}
#[test]
fn test_filetype_foo_bar() {
let wp = PosixPath("foo.bar");
assert!(wp.filetype() == Some(~".bar"));
let wp = WindowsPath("foo.bar");
assert!(wp.filetype() == Some(~".bar"));
}
#[test]
fn test_filetype_foo() {
let wp = PosixPath("foo");
assert!(wp.filetype() == None);
let wp = WindowsPath("foo");
assert!(wp.filetype() == None);
}
#[test]
fn test_posix_paths() {
fn t(wp: &PosixPath, s: &str) {
let ss = wp.to_str();
let sss = str::from_slice(s);
if (ss != sss) {
debug!("got %s", ss);
debug!("expected %s", sss);
assert!(ss == sss);
}
}
t(&(PosixPath("hi")), "hi");
t(&(PosixPath("/lib")), "/lib");
t(&(PosixPath("hi/there")), "hi/there");
t(&(PosixPath("hi/there.txt")), "hi/there.txt");
t(&(PosixPath("hi/there.txt")), "hi/there.txt");
t(&(PosixPath("hi/there.txt")
.with_filetype("")), "hi/there");
t(&(PosixPath("/a/b/c/there.txt")
.with_dirname("hi")), "hi/there.txt");
t(&(PosixPath("hi/there.txt")
.with_dirname(".")), "./there.txt");
t(&(PosixPath("a/b/c")
.push("..")), "a/b/c/..");
t(&(PosixPath("there.txt")
.with_filetype("o")), "there.o");
t(&(PosixPath("hi/there.txt")
.with_filetype("o")), "hi/there.o");
t(&(PosixPath("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr/lib")),
"/usr/lib/there.o");
t(&(PosixPath("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr/lib/")),
"/usr/lib/there.o");
t(&(PosixPath("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr//lib//")),
"/usr/lib/there.o");
t(&(PosixPath("/usr/bin/rust")
.push_many([~"lib", ~"thingy.so"])
.with_filestem("librustc")),
"/usr/bin/rust/lib/librustc.so");
}
#[test]
fn test_normalize() {
fn t(wp: &PosixPath, s: &str) {
let ss = wp.to_str();
let sss = str::from_slice(s);
if (ss != sss) {
debug!("got %s", ss);
debug!("expected %s", sss);
assert!(ss == sss);
}
}
t(&(PosixPath("hi/there.txt")
.with_dirname(".").normalize()), "there.txt");
t(&(PosixPath("a/b/../c/././/../foo.txt/").normalize()),
"a/foo.txt");
t(&(PosixPath("a/b/c")
.push("..").normalize()), "a/b");
}
#[test]
fn test_extract_unc_prefixes() {
assert!(windows::extract_unc_prefix("\\\\").is_none());
assert!(windows::extract_unc_prefix("//").is_none());
assert!(windows::extract_unc_prefix("\\\\hi").is_none());
assert!(windows::extract_unc_prefix("//hi").is_none());
assert!(windows::extract_unc_prefix("\\\\hi\\") ==
Some((~"hi", ~"\\")));
assert!(windows::extract_unc_prefix("//hi\\") ==
Some((~"hi", ~"\\")));
assert!(windows::extract_unc_prefix("\\\\hi\\there") ==
Some((~"hi", ~"\\there")));
assert!(windows::extract_unc_prefix("//hi/there") ==
Some((~"hi", ~"/there")));
assert!(windows::extract_unc_prefix(
"\\\\hi\\there\\friends.txt") ==
Some((~"hi", ~"\\there\\friends.txt")));
assert!(windows::extract_unc_prefix(
"//hi\\there\\friends.txt") ==
Some((~"hi", ~"\\there\\friends.txt")));
}
#[test]
fn test_extract_drive_prefixes() {
assert!(windows::extract_drive_prefix("c").is_none());
assert!(windows::extract_drive_prefix("c:") ==
Some((~"c", ~"")));
assert!(windows::extract_drive_prefix("d:") ==
Some((~"d", ~"")));
assert!(windows::extract_drive_prefix("z:") ==
Some((~"z", ~"")));
assert!(windows::extract_drive_prefix("c:\\hi") ==
Some((~"c", ~"\\hi")));
assert!(windows::extract_drive_prefix("d:hi") ==
Some((~"d", ~"hi")));
assert!(windows::extract_drive_prefix("c:hi\\there.txt") ==
Some((~"c", ~"hi\\there.txt")));
assert!(windows::extract_drive_prefix("c:\\hi\\there.txt") ==
Some((~"c", ~"\\hi\\there.txt")));
}
#[test]
fn test_windows_paths() {
fn t(wp: &WindowsPath, s: &str) {
let ss = wp.to_str();
let sss = str::from_slice(s);
if (ss != sss) {
debug!("got %s", ss);
debug!("expected %s", sss);
assert!(ss == sss);
}
}
t(&(WindowsPath("hi")), "hi");
t(&(WindowsPath("hi/there")), "hi\\there");
t(&(WindowsPath("hi/there.txt")), "hi\\there.txt");
t(&(WindowsPath("there.txt")
.with_filetype("o")), "there.o");
t(&(WindowsPath("hi/there.txt")
.with_filetype("o")), "hi\\there.o");
t(&(WindowsPath("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files A")),
"c:\\program files A\\there.o");
t(&(WindowsPath("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files B\\")),
"c:\\program files B\\there.o");
t(&(WindowsPath("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files C\\/")),
"c:\\program files C\\there.o");
t(&(WindowsPath("c:\\program files (x86)\\rust")
.push_many([~"lib", ~"thingy.dll"])
.with_filename("librustc.dll")),
"c:\\program files (x86)\\rust\\lib\\librustc.dll");
t(&(WindowsPath("\\\\computer\\share")
.unsafe_join(&WindowsPath("\\a"))),
"\\\\computer\\a");
t(&(WindowsPath("//computer/share")
.unsafe_join(&WindowsPath("\\a"))),
"\\\\computer\\a");
t(&(WindowsPath("//computer/share")
.unsafe_join(&WindowsPath("\\\\computer\\share"))),
"\\\\computer\\share");
t(&(WindowsPath("C:/whatever")
.unsafe_join(&WindowsPath("//computer/share/a/b"))),
"\\\\computer\\share\\a\\b");
t(&(WindowsPath("C:")
.unsafe_join(&WindowsPath("D:/foo"))),
"D:\\foo");
t(&(WindowsPath("C:")
.unsafe_join(&WindowsPath("B"))),
"C:B");
t(&(WindowsPath("C:")
.unsafe_join(&WindowsPath("/foo"))),
"C:\\foo");
t(&(WindowsPath("C:\\")
.unsafe_join(&WindowsPath("\\bar"))),
"C:\\bar");
t(&(WindowsPath("")
.unsafe_join(&WindowsPath(""))),
"");
t(&(WindowsPath("")
.unsafe_join(&WindowsPath("a"))),
"a");
t(&(WindowsPath("")
.unsafe_join(&WindowsPath("C:\\a"))),
"C:\\a");
t(&(WindowsPath("c:\\foo")
.normalize()),
"C:\\foo");
}
#[test]
fn test_windows_path_restrictions() {
assert!(WindowsPath("hi").is_restricted() == false);
assert!(WindowsPath("C:\\NUL").is_restricted() == true);
assert!(WindowsPath("C:\\COM1.TXT").is_restricted() == true);
assert!(WindowsPath("c:\\prn.exe").is_restricted() == true);
}
}