blob: 5044d43706f2be3fc1c4a91b769969997126a223 [file] [log] [blame]
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import '../characters.dart' as chars;
import '../parsed_path.dart';
import '../internal_style.dart';
/// The style for POSIX paths.
class PosixStyle extends InternalStyle {
PosixStyle();
final name = 'posix';
final separator = '/';
final separators = const ['/'];
// Deprecated properties.
final separatorPattern = new RegExp(r'/');
final needsSeparatorPattern = new RegExp(r'[^/]$');
final rootPattern = new RegExp(r'^/');
final relativeRootPattern = null;
bool containsSeparator(String path) => path.contains('/');
bool isSeparator(int codeUnit) => codeUnit == chars.SLASH;
bool needsSeparator(String path) =>
path.isNotEmpty && !isSeparator(path.codeUnitAt(path.length - 1));
int rootLength(String path, {bool withDrive: false}) {
if (path.isNotEmpty && isSeparator(path.codeUnitAt(0))) return 1;
return 0;
}
bool isRootRelative(String path) => false;
String getRelativeRoot(String path) => null;
String pathFromUri(Uri uri) {
if (uri.scheme == '' || uri.scheme == 'file') {
return Uri.decodeComponent(uri.path);
}
throw new ArgumentError("Uri $uri must have scheme 'file:'.");
}
Uri absolutePathToUri(String path) {
var parsed = new ParsedPath.parse(path, this);
if (parsed.parts.isEmpty) {
// If the path is a bare root (e.g. "/"), [components] will
// currently be empty. We add two empty components so the URL constructor
// produces "file:///", with a trailing slash.
parsed.parts.addAll(["", ""]);
} else if (parsed.hasTrailingSeparator) {
// If the path has a trailing slash, add a single empty component so the
// URI has a trailing slash as well.
parsed.parts.add("");
}
return new Uri(scheme: 'file', pathSegments: parsed.parts);
}
}