Replace core::path with contents of core::path2. Back to one path module.

This commit is contained in:
Graydon Hoare
2012-08-29 13:25:31 -07:00
parent cb8ecd7984
commit 6d22a805d7
5 changed files with 539 additions and 1044 deletions
+1 -2
View File
@@ -54,7 +54,7 @@ export send_map;
export hash;
export cmp;
export num;
export path, path2;
export path;
export managed;
export flate;
@@ -254,7 +254,6 @@ mod libc;
mod os;
#[warn(non_camel_case_types)]
mod path;
mod path2;
#[warn(non_camel_case_types)]
mod rand;
#[warn(non_camel_case_types)]
+4 -4
View File
@@ -10,10 +10,10 @@
import result::{Result, Ok, Err};
import Path = path2::Path;
import GenericPath = path2::GenericPath;
import WindowsPath = path2::WindowsPath;
import PosixPath = path2::PosixPath;
import Path = path::Path;
import GenericPath = path::GenericPath;
import WindowsPath = path::WindowsPath;
import PosixPath = path::PosixPath;
import tuple::{TupleOps, ExtendedTupleOps};
import str::{StrSlice, UniqueStr};
+1 -1
View File
@@ -914,7 +914,7 @@ fn test_env_setenv() {
#[test]
fn test() {
assert (!path::path_is_absolute(~"test-path"));
assert (!Path("test-path").is_absolute);
log(debug, ~"Current working directory: " + getcwd().to_str());
+533 -460
View File
@@ -1,504 +1,577 @@
//! Path data type and helper functions
// NB: transitionary, de-mode-ing.
#[forbid(deprecated_mode)];
#[forbid(deprecated_pattern)];
export Path;
export consts;
export path_is_absolute;
export path_sep;
export dirname;
export basename;
export connect;
export connect_many;
export split;
export splitext;
export normalize;
struct WindowsPath {
host: Option<~str>;
device: Option<~str>;
is_absolute: bool;
components: ~[~str];
}
// FIXME: This type should probably be constrained (#2624)
/// A path or fragment of a filesystem path
type Path = ~str;
struct PosixPath {
is_absolute: bool;
components: ~[~str];
}
#[cfg(unix)]
mod consts {
/**
* The primary path separator character for the platform
*
* On all platforms it is '/'
*/
const path_sep: char = '/';
/**
* The secondary path separator character for the platform
*
* On Unixes it is '/'. On Windows it is '\'.
*/
const alt_path_sep: char = '/';
trait GenericPath {
static pure fn from_str((&str)) -> self;
pure fn dirname() -> ~str;
pure fn filename() -> Option<~str>;
pure fn filestem() -> Option<~str>;
pure fn filetype() -> Option<~str>;
pure fn with_dirname((&str)) -> self;
pure fn with_filename((&str)) -> self;
pure fn with_filestem((&str)) -> self;
pure fn with_filetype((&str)) -> self;
pure fn push((&str)) -> self;
pure fn push_rel((&self)) -> self;
pure fn push_many((&[~str])) -> self;
pure fn pop() -> self;
}
#[cfg(windows)]
mod consts {
const path_sep: char = '/';
const alt_path_sep: char = '\\';
}
/**
* Indicates whether a path is absolute.
*
* A path is considered absolute if it begins at the filesystem root ("/") or,
* on Windows, begins with a drive letter.
*/
#[cfg(unix)]
fn path_is_absolute(p: Path) -> bool {
str::char_at(p, 0u) == '/'
}
type Path = WindowsPath;
#[cfg(windows)]
fn path_is_absolute(p: ~str) -> bool {
return str::char_at(p, 0u) == '/' ||
str::char_at(p, 1u) == ':'
&& (str::char_at(p, 2u) == consts::path_sep
|| str::char_at(p, 2u) == consts::alt_path_sep);
pure fn Path(s: &str) -> Path {
from_str::<WindowsPath>(s)
}
/// Get the default path separator for the host platform
fn path_sep() -> ~str { return str::from_char(consts::path_sep); }
#[cfg(unix)]
type Path = PosixPath;
fn split_dirname_basename (pp: Path) -> {dirname: ~str, basename: ~str} {
match str::rfind(pp, |ch|
ch == consts::path_sep || ch == consts::alt_path_sep
) {
Some(i) => {
dirname: str::slice(pp, 0u, i),
basename: str::slice(pp, i + 1u, str::len(pp))
},
None => {dirname: ~".", basename: pp}
}
#[cfg(unix)]
pure fn Path(s: &str) -> Path {
from_str::<PosixPath>(s)
}
/**
* Get the directory portion of a path
*
* Returns all of the path up to, but excluding, the final path separator.
* The dirname of "/usr/share" will be "/usr", but the dirname of
* "/usr/share/" is "/usr/share".
*
* If the path is not prefixed with a directory, then "." is returned.
*/
fn dirname(pp: Path) -> Path {
return split_dirname_basename(pp).dirname;
}
/**
* Get the file name portion of a path
*
* Returns the portion of the path after the final path separator.
* The basename of "/usr/share" will be "share". If there are no
* path separators in the path then the returned path is identical to
* the provided path. If an empty path is provided or the path ends
* with a path separator then an empty path is returned.
*/
fn basename(pp: Path) -> Path {
return split_dirname_basename(pp).basename;
}
/**
* Connects to path segments
*
* Given paths `pre` and `post, removes any trailing path separator on `pre`
* and any leading path separator on `post`, and returns the concatenation of
* the two with a single path separator between them.
*/
fn connect(pre: Path, post: Path) -> Path {
let mut pre_ = pre;
let mut post_ = post;
let sep = consts::path_sep as u8;
let pre_len = str::len(pre);
let post_len = str::len(post);
unsafe {
if pre_len > 1u && pre[pre_len-1u] == sep {
str::unsafe::pop_byte(pre_);
impl PosixPath : ToStr {
fn to_str() -> ~str {
let mut s = ~"";
if self.is_absolute {
s += "/";
}
if post_len > 1u && post[0] == sep {
str::unsafe::shift_byte(post_);
}
}
return pre_ + path_sep() + post_;
}
/**
* Connects a vector of path segments into a single path.
*
* Inserts path separators as needed.
*/
fn connect_many(paths: ~[Path]) -> Path {
return if vec::len(paths) == 1u {
paths[0]
} else {
let rest = vec::slice(paths, 1u, vec::len(paths));
connect(paths[0], connect_many(rest))
s + str::connect(self.components, "/")
}
}
/**
* Split a path into its individual components
*
* Splits a given path by path separators and returns a vector containing
* each piece of the path. On Windows, if the path is absolute then
* the first element of the returned vector will be the drive letter
* followed by a colon.
*/
fn split(p: Path) -> ~[Path] {
str::split_nonempty(p, |c| {
c == consts::path_sep || c == consts::alt_path_sep
})
}
// FIXME (#3227): when default methods in traits are working, de-duplicate
// PosixPath and WindowsPath, most of their methods are common.
impl PosixPath : GenericPath {
/**
* Split a path into the part before the extension and the extension
*
* Split a path into a pair of strings with the first element being the
* filename without the extension and the second being either empty or the
* file extension including the period. Leading periods in the basename are
* ignored. If the path includes directory components then they are included
* in the filename part of the result pair.
*/
fn splitext(p: Path) -> (~str, ~str) {
if str::is_empty(p) { (~"", ~"") }
else {
let parts = str::split_char(p, '.');
if vec::len(parts) > 1u {
let base = str::connect(vec::init(parts), ~".");
// We just checked that parts is non-empty, so this is safe
let ext = ~"." + vec::last(parts);
static pure fn from_str(s: &str) -> PosixPath {
let mut components = str::split_nonempty(s, |c| c == '/');
let is_absolute = (s.len() != 0 && s[0] == '/' as u8);
return PosixPath { is_absolute: is_absolute,
components: normalize(components) }
}
fn is_dotfile(base: ~str) -> bool {
str::is_empty(base)
|| str::ends_with(
base, str::from_char(consts::path_sep))
|| str::ends_with(
base, str::from_char(consts::alt_path_sep))
}
fn ext_contains_sep(ext: ~str) -> bool {
vec::len(split(ext)) > 1u
}
fn no_basename(ext: ~str) -> bool {
str::ends_with(
ext, str::from_char(consts::path_sep))
|| str::ends_with(
ext, str::from_char(consts::alt_path_sep))
}
if is_dotfile(base)
|| ext_contains_sep(ext)
|| no_basename(ext) {
(p, ~"")
pure fn dirname() -> ~str {
unchecked {
let s = self.dir_path().to_str();
if s.len() == 0 {
~"."
} else {
(base, ext)
s
}
}
}
pure fn filename() -> Option<~str> {
match self.components.len() {
0 => None,
n => Some(copy self.components[n - 1])
}
}
pure fn filestem() -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) => Some(f.slice(0, p)),
None => Some(copy *f)
}
}
}
}
pure fn filetype() -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) if p+1 < f.len() => Some(f.slice(p+1, f.len())),
_ => None
}
}
}
}
pure fn with_dirname(d: &str) -> PosixPath {
let dpath = from_str::<PosixPath>(d);
match self.filename() {
Some(ref f) => dpath.push(*f),
None => dpath
}
}
pure fn with_filename(f: &str) -> PosixPath {
unchecked {
assert ! str::any(f, |c| windows::is_sep(c as u8));
self.dir_path().push(f)
}
}
pure fn with_filestem(s: &str) -> PosixPath {
match self.filetype() {
None => self.with_filename(s),
Some(ref t) =>
self.with_filename(str::from_slice(s) + "." + *t)
}
}
pure fn with_filetype(t: &str) -> PosixPath {
if t.len() == 0 {
match self.filestem() {
None => copy self,
Some(s) => self.with_filename(s)
}
} else {
(p, ~"")
let t = ~"." + str::from_slice(t);
match self.filestem() {
None => self.with_filename(t),
Some(ref s) =>
self.with_filename(*s + t)
}
}
}
pure fn dir_path() -> PosixPath {
if self.components.len() != 0 {
self.pop()
} else {
copy self
}
}
pure fn file_path() -> PosixPath {
let cs = match self.filename() {
None => ~[],
Some(ref f) => ~[copy *f]
};
return PosixPath { is_absolute: false,
components: cs }
}
pure fn push_rel(other: &PosixPath) -> PosixPath {
assert !other.is_absolute;
self.push_many(other.components)
}
pure fn push_many(cs: &[~str]) -> PosixPath {
return PosixPath { components: normalize(self.components + cs),
..self }
}
pure fn push(s: &str) -> PosixPath {
let mut cs = self.components;
unchecked { vec::push(cs, move str::from_slice(s)); }
cs = normalize(cs);
return PosixPath { components: move cs,
..self }
}
pure fn pop() -> PosixPath {
let mut cs = copy self.components;
if cs.len() != 0 {
unchecked { vec::pop(cs); }
}
return PosixPath { components: move cs, ..self }
}
}
/**
* Collapses redundant path separators.
*
* Does not follow symbolic links.
*
* # Examples
*
* * '/a/../b' becomes '/b'
* * 'a/./b/' becomes 'a/b/'
* * 'a/b/../../../' becomes '..'
* * '/a/b/c/../d/./../../e/' becomes '/a/e/'
*/
fn normalize(p: Path) -> Path {
let s = split(p);
let s = strip_dots(s);
let s = rollup_doubledots(s);
let s = if vec::is_not_empty(s) {
connect_many(s)
} else {
~""
};
let s = reabsolute(p, s);
let s = reterminate(p, s);
let s = if str::len(s) == 0u {
~"."
} else {
s
};
return s;
fn strip_dots(s: ~[Path]) -> ~[Path] {
vec::filter_map(s, |elem|
if elem == ~"." {
option::None
} else {
option::Some(elem)
})
impl WindowsPath : ToStr {
fn to_str() -> ~str {
let mut s = ~"";
match self.host {
Some(h) => { s += "\\\\"; s += h; }
None => { }
}
match self.device {
Some(d) => { s += d; s += ":"; }
None => { }
}
if self.is_absolute {
s += "\\";
}
s + str::connect(self.components, "\\")
}
}
fn rollup_doubledots(s: ~[Path]) -> ~[Path] {
if vec::is_empty(s) {
return ~[];
impl WindowsPath : GenericPath {
static pure 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 t = ~[];
let mut i = vec::len(s);
let mut skip = 0;
while i != 0u {
i -= 1u;
if s[i] == ~".." {
skip += 1;
let mut components =
str::split_nonempty(rest, |c| windows::is_sep(c as u8));
let is_absolute = (rest.len() != 0 && windows::is_sep(rest[0]));
return WindowsPath { host: host,
device: device,
is_absolute: is_absolute,
components: normalize(components) }
}
pure fn dirname() -> ~str {
unchecked {
let s = self.dir_path().to_str();
if s.len() == 0 {
~"."
} else {
if skip == 0 {
vec::push(t, s[i]);
} else {
skip -= 1;
s
}
}
}
pure fn filename() -> Option<~str> {
match self.components.len() {
0 => None,
n => Some(copy self.components[n - 1])
}
}
pure fn filestem() -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) => Some(f.slice(0, p)),
None => Some(copy *f)
}
}
}
}
pure fn filetype() -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) if p+1 < f.len() => Some(f.slice(p+1, f.len())),
_ => None
}
}
}
}
pure fn with_dirname(d: &str) -> WindowsPath {
let dpath = from_str::<WindowsPath>(d);
match self.filename() {
Some(ref f) => dpath.push(*f),
None => dpath
}
}
pure fn with_filename(f: &str) -> WindowsPath {
assert ! str::any(f, |c| windows::is_sep(c as u8));
self.dir_path().push(f)
}
pure fn with_filestem(s: &str) -> WindowsPath {
match self.filetype() {
None => self.with_filename(s),
Some(ref t) =>
self.with_filename(str::from_slice(s) + "." + *t)
}
}
pure fn with_filetype(t: &str) -> WindowsPath {
if t.len() == 0 {
match self.filestem() {
None => copy self,
Some(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)
}
}
}
pure fn dir_path() -> WindowsPath {
if self.components.len() != 0 {
self.pop()
} else {
copy self
}
}
pure fn file_path() -> WindowsPath {
let cs = match self.filename() {
None => ~[],
Some(ref f) => ~[copy *f]
};
return WindowsPath { host: None,
device: None,
is_absolute: false,
components: cs }
}
pure fn push_rel(other: &WindowsPath) -> WindowsPath {
assert !other.is_absolute;
self.push_many(other.components)
}
pure fn push_many(cs: &[~str]) -> WindowsPath {
return WindowsPath { components: normalize(self.components + cs),
..self }
}
pure fn push(s: &str) -> WindowsPath {
let mut cs = self.components;
unchecked { vec::push(cs, move str::from_slice(s)); }
cs = normalize(cs);
return WindowsPath { components: move cs,
..self }
}
pure fn pop() -> WindowsPath {
let mut cs = copy self.components;
if cs.len() != 0 {
unchecked { vec::pop(cs); }
}
return WindowsPath { components: move cs, ..self }
}
}
pure fn normalize(components: &[~str]) -> ~[~str] {
let mut cs = ~[];
unchecked {
for components.each |c| {
unchecked {
if c == ~"." && components.len() > 1 { again; }
if c == ~".." && cs.len() != 0 {
vec::pop(cs);
again;
}
vec::push(cs, copy c);
}
}
let mut t = vec::reversed(t);
while skip > 0 {
vec::push(t, ~"..");
skip -= 1;
}
return t;
}
#[cfg(unix)]
fn reabsolute(orig: Path, n: Path) -> Path {
if path_is_absolute(orig) {
path_sep() + n
} else {
n
}
}
#[cfg(windows)]
fn reabsolute(orig: Path, newp: Path) -> Path {
if path_is_absolute(orig) && orig[0] == consts::path_sep as u8 {
str::from_char(consts::path_sep) + newp
} else {
newp
}
}
fn reterminate(orig: Path, newp: Path) -> Path {
let last = orig[str::len(orig) - 1u];
if last == consts::path_sep as u8
|| last == consts::path_sep as u8 {
return newp + path_sep();
} else {
return newp;
}
}
cs
}
#[cfg(test)]
mod tests {
#[test]
fn test_connect() {
let slash = path_sep();
log(error, connect(~"a", ~"b"));
assert (connect(~"a", ~"b") == ~"a" + slash + ~"b");
assert (connect(~"a" + slash, ~"b") == ~"a" + slash + ~"b");
}
fn ps() -> ~str {
path_sep()
}
fn aps() -> ~str {
~"/"
}
mod posix {
#[test]
fn split1() {
let actual = split(~"a" + ps() + ~"b");
let expected = ~[~"a", ~"b"];
assert actual == expected;
fn test_posix_paths() {
fn mk(s: &str) -> PosixPath { from_str::<PosixPath>(s) }
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(&(mk("hi")), "hi");
t(&(mk("/lib")), "/lib");
t(&(mk("hi/there")), "hi/there");
t(&(mk("hi/there.txt")), "hi/there.txt");
t(&(mk("hi/there.txt")), "hi/there.txt");
t(&(mk("hi/there.txt")
.with_filetype("")), "hi/there");
t(&(mk("/a/b/c/there.txt")
.with_dirname("hi")), "hi/there.txt");
t(&(mk("hi/there.txt")
.with_dirname(".")), "there.txt");
t(&(mk("a/b/../c/././/../foo.txt/")),
"a/foo.txt");
t(&(mk("a/b/c")
.push("..")), "a/b");
t(&(mk("there.txt")
.with_filetype("o")), "there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")), "hi/there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr/lib")),
"/usr/lib/there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr/lib/")),
"/usr/lib/there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr//lib//")),
"/usr/lib/there.o");
t(&(mk("/usr/bin/rust")
.push_many([~"lib", ~"thingy.so"])
.with_filestem("librustc")),
"/usr/bin/rust/lib/librustc.so");
}
#[test]
fn split2() {
let actual = split(~"a" + aps() + ~"b");
let expected = ~[~"a", ~"b"];
assert actual == expected;
}
#[test]
fn split3() {
let actual = split(ps() + ~"a" + ps() + ~"b");
let expected = ~[~"a", ~"b"];
assert actual == expected;
}
#[test]
fn split4() {
let actual = split(~"a" + ps() + ~"b" + aps() + ~"c");
let expected = ~[~"a", ~"b", ~"c"];
assert actual == expected;
}
#[test]
fn normalize1() {
let actual = normalize(~"a/b/..");
let expected = ~"a";
assert actual == expected;
}
#[test]
fn normalize2() {
let actual = normalize(~"/a/b/..");
let expected = ~"/a";
assert actual == expected;
}
#[test]
fn normalize3() {
let actual = normalize(~"a/../b");
let expected = ~"b";
assert actual == expected;
}
#[test]
fn normalize4() {
let actual = normalize(~"/a/../b");
let expected = ~"/b";
assert actual == expected;
}
#[test]
fn normalize5() {
let actual = normalize(~"a/.");
let expected = ~"a";
assert actual == expected;
}
#[test]
fn normalize6() {
let actual = normalize(~"a/./b/");
let expected = ~"a/b/";
assert actual == expected;
}
#[test]
fn normalize7() {
let actual = normalize(~"a/..");
let expected = ~".";
assert actual == expected;
}
#[test]
fn normalize8() {
let actual = normalize(~"../../..");
let expected = ~"../../..";
assert actual == expected;
}
#[test]
fn normalize9() {
let actual = normalize(~"a/b/../../..");
let expected = ~"..";
assert actual == expected;
}
#[test]
fn normalize10() {
let actual = normalize(~"/a/b/c/../d/./../../e/");
let expected = ~"/a/e/";
log(error, actual);
assert actual == expected;
}
#[test]
fn normalize11() {
let actual = normalize(~"/a/..");
let expected = ~"/";
assert actual == expected;
}
#[test]
#[cfg(windows)]
fn normalize12() {
let actual = normalize(~"C:/whatever");
let expected = ~"C:/whatever";
log(error, actual);
assert actual == expected;
}
#[test]
#[cfg(windows)]
fn path_is_absolute_win32() {
assert path_is_absolute(~"C:/whatever");
}
#[test]
fn splitext_empty() {
let (base, ext) = splitext(~"");
assert base == ~"";
assert ext == ~"";
}
#[test]
fn splitext_ext() {
let (base, ext) = splitext(~"grum.exe");
assert base == ~"grum";
assert ext == ~".exe";
}
#[test]
fn splitext_noext() {
let (base, ext) = splitext(~"grum");
assert base == ~"grum";
assert ext == ~"";
}
#[test]
fn splitext_dotfile() {
let (base, ext) = splitext(~".grum");
assert base == ~".grum";
assert ext == ~"";
}
#[test]
fn splitext_path_ext() {
let (base, ext) = splitext(~"oh/grum.exe");
assert base == ~"oh/grum";
assert ext == ~".exe";
}
#[test]
fn splitext_path_noext() {
let (base, ext) = splitext(~"oh/grum");
assert base == ~"oh/grum";
assert ext == ~"";
}
#[test]
fn splitext_dot_in_path() {
let (base, ext) = splitext(~"oh.my/grum");
assert base == ~"oh.my/grum";
assert ext == ~"";
}
#[test]
fn splitext_nobasename() {
let (base, ext) = splitext(~"oh.my/");
assert base == ~"oh.my/";
assert ext == ~"";
}
}
// Local Variables:
// mode: rust;
// fill-column: 78;
// indent-tabs-mode: nil
// c-basic-offset: 4
// buffer-file-coding-system: utf-8-unix
// End:
// Various windows helpers, and tests for the impl.
mod windows {
#[inline(always)]
pure fn is_sep(u: u8) -> bool {
u == '/' as u8 || u == '\\' as u8
}
pure fn extract_unc_prefix(s: &str) -> Option<(~str,~str)> {
if (s.len() > 1 &&
s[0] == '\\' as u8 &&
s[1] == '\\' as u8) {
let mut i = 2;
while i < s.len() {
if s[i] == '\\' as u8 {
let pre = s.slice(2, i);
let rest = s.slice(i, s.len());
return Some((pre, rest));
}
i += 1;
}
}
None
}
pure fn extract_drive_prefix(s: &str) -> Option<(~str,~str)> {
unchecked {
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())
};
return Some((s.slice(0,1), rest));
}
None
}
}
#[test]
fn test_extract_unc_prefixes() {
assert extract_unc_prefix("\\\\").is_none();
assert extract_unc_prefix("\\\\hi").is_none();
assert extract_unc_prefix("\\\\hi\\") == Some((~"hi", ~"\\"));
assert extract_unc_prefix("\\\\hi\\there") ==
Some((~"hi", ~"\\there"));
assert extract_unc_prefix("\\\\hi\\there\\friends.txt") ==
Some((~"hi", ~"\\there\\friends.txt"));
}
#[test]
fn test_extract_drive_prefixes() {
assert extract_drive_prefix("c").is_none();
assert extract_drive_prefix("c:") == Some((~"c", ~""));
assert extract_drive_prefix("d:") == Some((~"d", ~""));
assert extract_drive_prefix("z:") == Some((~"z", ~""));
assert extract_drive_prefix("c:\\hi") == Some((~"c", ~"\\hi"));
assert extract_drive_prefix("d:hi") == Some((~"d", ~"hi"));
assert extract_drive_prefix("c:hi\\there.txt") ==
Some((~"c", ~"hi\\there.txt"));
assert extract_drive_prefix("c:\\hi\\there.txt") ==
Some((~"c", ~"\\hi\\there.txt"));
}
#[test]
fn test_windows_paths() {
fn mk(s: &str) -> WindowsPath { from_str::<WindowsPath>(s) }
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(&(mk("hi")), "hi");
t(&(mk("hi/there")), "hi\\there");
t(&(mk("hi/there.txt")), "hi\\there.txt");
t(&(mk("there.txt")
.with_filetype("o")), "there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")), "hi\\there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files A")),
"c:\\program files A\\there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files B\\")),
"c:\\program files B\\there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files C\\/")),
"c:\\program files C\\there.o");
t(&(mk("c:\\program files (x86)\\rust")
.push_many([~"lib", ~"thingy.dll"])
.with_filename("librustc.dll")),
"c:\\program files (x86)\\rust\\lib\\librustc.dll");
}
}
-577
View File
@@ -1,577 +0,0 @@
// NB: transitionary, de-mode-ing.
#[forbid(deprecated_mode)];
#[forbid(deprecated_pattern)];
struct WindowsPath {
host: Option<~str>;
device: Option<~str>;
is_absolute: bool;
components: ~[~str];
}
struct PosixPath {
is_absolute: bool;
components: ~[~str];
}
trait GenericPath {
static pure fn from_str((&str)) -> self;
pure fn dirname() -> ~str;
pure fn filename() -> Option<~str>;
pure fn filestem() -> Option<~str>;
pure fn filetype() -> Option<~str>;
pure fn with_dirname((&str)) -> self;
pure fn with_filename((&str)) -> self;
pure fn with_filestem((&str)) -> self;
pure fn with_filetype((&str)) -> self;
pure fn push((&str)) -> self;
pure fn push_rel((&self)) -> self;
pure fn push_many((&[~str])) -> self;
pure fn pop() -> self;
}
#[cfg(windows)]
type Path = WindowsPath;
#[cfg(windows)]
pure fn Path(s: &str) -> Path {
from_str::<WindowsPath>(s)
}
#[cfg(unix)]
type Path = PosixPath;
#[cfg(unix)]
pure fn Path(s: &str) -> Path {
from_str::<PosixPath>(s)
}
impl PosixPath : ToStr {
fn to_str() -> ~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 PosixPath : GenericPath {
static pure fn from_str(s: &str) -> PosixPath {
let mut components = str::split_nonempty(s, |c| c == '/');
let is_absolute = (s.len() != 0 && s[0] == '/' as u8);
return PosixPath { is_absolute: is_absolute,
components: normalize(components) }
}
pure fn dirname() -> ~str {
unchecked {
let s = self.dir_path().to_str();
if s.len() == 0 {
~"."
} else {
s
}
}
}
pure fn filename() -> Option<~str> {
match self.components.len() {
0 => None,
n => Some(copy self.components[n - 1])
}
}
pure fn filestem() -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) => Some(f.slice(0, p)),
None => Some(copy *f)
}
}
}
}
pure fn filetype() -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) if p+1 < f.len() => Some(f.slice(p+1, f.len())),
_ => None
}
}
}
}
pure fn with_dirname(d: &str) -> PosixPath {
let dpath = from_str::<PosixPath>(d);
match self.filename() {
Some(ref f) => dpath.push(*f),
None => dpath
}
}
pure fn with_filename(f: &str) -> PosixPath {
unchecked {
assert ! str::any(f, |c| windows::is_sep(c as u8));
self.dir_path().push(f)
}
}
pure fn with_filestem(s: &str) -> PosixPath {
match self.filetype() {
None => self.with_filename(s),
Some(ref t) =>
self.with_filename(str::from_slice(s) + "." + *t)
}
}
pure fn with_filetype(t: &str) -> PosixPath {
if t.len() == 0 {
match self.filestem() {
None => copy self,
Some(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)
}
}
}
pure fn dir_path() -> PosixPath {
if self.components.len() != 0 {
self.pop()
} else {
copy self
}
}
pure fn file_path() -> PosixPath {
let cs = match self.filename() {
None => ~[],
Some(ref f) => ~[copy *f]
};
return PosixPath { is_absolute: false,
components: cs }
}
pure fn push_rel(other: &PosixPath) -> PosixPath {
assert !other.is_absolute;
self.push_many(other.components)
}
pure fn push_many(cs: &[~str]) -> PosixPath {
return PosixPath { components: normalize(self.components + cs),
..self }
}
pure fn push(s: &str) -> PosixPath {
let mut cs = self.components;
unchecked { vec::push(cs, move str::from_slice(s)); }
cs = normalize(cs);
return PosixPath { components: move cs,
..self }
}
pure fn pop() -> PosixPath {
let mut cs = copy self.components;
if cs.len() != 0 {
unchecked { vec::pop(cs); }
}
return PosixPath { components: move cs, ..self }
}
}
impl WindowsPath : ToStr {
fn to_str() -> ~str {
let mut s = ~"";
match self.host {
Some(h) => { s += "\\\\"; s += h; }
None => { }
}
match self.device {
Some(d) => { s += d; s += ":"; }
None => { }
}
if self.is_absolute {
s += "\\";
}
s + str::connect(self.components, "\\")
}
}
impl WindowsPath : GenericPath {
static pure 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 =
str::split_nonempty(rest, |c| windows::is_sep(c as u8));
let is_absolute = (rest.len() != 0 && windows::is_sep(rest[0]));
return WindowsPath { host: host,
device: device,
is_absolute: is_absolute,
components: normalize(components) }
}
pure fn dirname() -> ~str {
unchecked {
let s = self.dir_path().to_str();
if s.len() == 0 {
~"."
} else {
s
}
}
}
pure fn filename() -> Option<~str> {
match self.components.len() {
0 => None,
n => Some(copy self.components[n - 1])
}
}
pure fn filestem() -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) => Some(f.slice(0, p)),
None => Some(copy *f)
}
}
}
}
pure fn filetype() -> Option<~str> {
match self.filename() {
None => None,
Some(ref f) => {
match str::rfind_char(*f, '.') {
Some(p) if p+1 < f.len() => Some(f.slice(p+1, f.len())),
_ => None
}
}
}
}
pure fn with_dirname(d: &str) -> WindowsPath {
let dpath = from_str::<WindowsPath>(d);
match self.filename() {
Some(ref f) => dpath.push(*f),
None => dpath
}
}
pure fn with_filename(f: &str) -> WindowsPath {
assert ! str::any(f, |c| windows::is_sep(c as u8));
self.dir_path().push(f)
}
pure fn with_filestem(s: &str) -> WindowsPath {
match self.filetype() {
None => self.with_filename(s),
Some(ref t) =>
self.with_filename(str::from_slice(s) + "." + *t)
}
}
pure fn with_filetype(t: &str) -> WindowsPath {
if t.len() == 0 {
match self.filestem() {
None => copy self,
Some(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)
}
}
}
pure fn dir_path() -> WindowsPath {
if self.components.len() != 0 {
self.pop()
} else {
copy self
}
}
pure fn file_path() -> WindowsPath {
let cs = match self.filename() {
None => ~[],
Some(ref f) => ~[copy *f]
};
return WindowsPath { host: None,
device: None,
is_absolute: false,
components: cs }
}
pure fn push_rel(other: &WindowsPath) -> WindowsPath {
assert !other.is_absolute;
self.push_many(other.components)
}
pure fn push_many(cs: &[~str]) -> WindowsPath {
return WindowsPath { components: normalize(self.components + cs),
..self }
}
pure fn push(s: &str) -> WindowsPath {
let mut cs = self.components;
unchecked { vec::push(cs, move str::from_slice(s)); }
cs = normalize(cs);
return WindowsPath { components: move cs,
..self }
}
pure fn pop() -> WindowsPath {
let mut cs = copy self.components;
if cs.len() != 0 {
unchecked { vec::pop(cs); }
}
return WindowsPath { components: move cs, ..self }
}
}
pure fn normalize(components: &[~str]) -> ~[~str] {
let mut cs = ~[];
unchecked {
for components.each |c| {
unchecked {
if c == ~"." && components.len() > 1 { again; }
if c == ~".." && cs.len() != 0 {
vec::pop(cs);
again;
}
vec::push(cs, copy c);
}
}
}
cs
}
mod posix {
#[test]
fn test_posix_paths() {
fn mk(s: &str) -> PosixPath { from_str::<PosixPath>(s) }
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(&(mk("hi")), "hi");
t(&(mk("/lib")), "/lib");
t(&(mk("hi/there")), "hi/there");
t(&(mk("hi/there.txt")), "hi/there.txt");
t(&(mk("hi/there.txt")), "hi/there.txt");
t(&(mk("hi/there.txt")
.with_filetype("")), "hi/there");
t(&(mk("/a/b/c/there.txt")
.with_dirname("hi")), "hi/there.txt");
t(&(mk("hi/there.txt")
.with_dirname(".")), "there.txt");
t(&(mk("a/b/../c/././/../foo.txt/")),
"a/foo.txt");
t(&(mk("a/b/c")
.push("..")), "a/b");
t(&(mk("there.txt")
.with_filetype("o")), "there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")), "hi/there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr/lib")),
"/usr/lib/there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr/lib/")),
"/usr/lib/there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("/usr//lib//")),
"/usr/lib/there.o");
t(&(mk("/usr/bin/rust")
.push_many([~"lib", ~"thingy.so"])
.with_filestem("librustc")),
"/usr/bin/rust/lib/librustc.so");
}
}
// Various windows helpers, and tests for the impl.
mod windows {
#[inline(always)]
pure fn is_sep(u: u8) -> bool {
u == '/' as u8 || u == '\\' as u8
}
pure fn extract_unc_prefix(s: &str) -> Option<(~str,~str)> {
if (s.len() > 1 &&
s[0] == '\\' as u8 &&
s[1] == '\\' as u8) {
let mut i = 2;
while i < s.len() {
if s[i] == '\\' as u8 {
let pre = s.slice(2, i);
let rest = s.slice(i, s.len());
return Some((pre, rest));
}
i += 1;
}
}
None
}
pure fn extract_drive_prefix(s: &str) -> Option<(~str,~str)> {
unchecked {
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())
};
return Some((s.slice(0,1), rest));
}
None
}
}
#[test]
fn test_extract_unc_prefixes() {
assert extract_unc_prefix("\\\\").is_none();
assert extract_unc_prefix("\\\\hi").is_none();
assert extract_unc_prefix("\\\\hi\\") == Some((~"hi", ~"\\"));
assert extract_unc_prefix("\\\\hi\\there") ==
Some((~"hi", ~"\\there"));
assert extract_unc_prefix("\\\\hi\\there\\friends.txt") ==
Some((~"hi", ~"\\there\\friends.txt"));
}
#[test]
fn test_extract_drive_prefixes() {
assert extract_drive_prefix("c").is_none();
assert extract_drive_prefix("c:") == Some((~"c", ~""));
assert extract_drive_prefix("d:") == Some((~"d", ~""));
assert extract_drive_prefix("z:") == Some((~"z", ~""));
assert extract_drive_prefix("c:\\hi") == Some((~"c", ~"\\hi"));
assert extract_drive_prefix("d:hi") == Some((~"d", ~"hi"));
assert extract_drive_prefix("c:hi\\there.txt") ==
Some((~"c", ~"hi\\there.txt"));
assert extract_drive_prefix("c:\\hi\\there.txt") ==
Some((~"c", ~"\\hi\\there.txt"));
}
#[test]
fn test_windows_paths() {
fn mk(s: &str) -> WindowsPath { from_str::<WindowsPath>(s) }
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(&(mk("hi")), "hi");
t(&(mk("hi/there")), "hi\\there");
t(&(mk("hi/there.txt")), "hi\\there.txt");
t(&(mk("there.txt")
.with_filetype("o")), "there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")), "hi\\there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files A")),
"c:\\program files A\\there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files B\\")),
"c:\\program files B\\there.o");
t(&(mk("hi/there.txt")
.with_filetype("o")
.with_dirname("c:\\program files C\\/")),
"c:\\program files C\\there.o");
t(&(mk("c:\\program files (x86)\\rust")
.push_many([~"lib", ~"thingy.dll"])
.with_filename("librustc.dll")),
"c:\\program files (x86)\\rust\\lib\\librustc.dll");
}
}