/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019, 2020
* Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "OFString+PathAdditions.h"
#import "OFArray.h"
#import "OFFileURLHandler.h"
#import "OFOutOfRangeException.h"
int _OFString_PathAdditions_reference;
@implementation OFString (PathAdditions)
+ (OFString *)pathWithComponents: (OFArray *)components
{
OFMutableString *ret = [OFMutableString string];
void *pool = objc_autoreleasePoolPush();
bool firstAfterDevice = true;
for (OFString *component in components) {
if (component.length == 0)
continue;
if (!firstAfterDevice)
[ret appendString: @"/"];
[ret appendString: component];
if (![component hasSuffix: @":"])
firstAfterDevice = false;
}
[ret makeImmutable];
objc_autoreleasePoolPop(pool);
return ret;
}
- (bool)isAbsolutePath
{
return [self containsString: @":"];
}
- (OFArray *)pathComponents
{
OFMutableArray OF_GENERIC(OFString *) *ret = [OFMutableArray array];
void *pool = objc_autoreleasePoolPush();
const char *cString = self.UTF8String;
size_t i, last = 0, cStringLength = self.UTF8StringLength;
if (cStringLength == 0) {
objc_autoreleasePoolPop(pool);
return ret;
}
for (i = 0; i < cStringLength; i++) {
if (cString[i] == '/') {
if (i - last != 0)
[ret addObject: [OFString
stringWithUTF8String: cString + last
length: i - last]];
else
[ret addObject: @"/"];
last = i + 1;
} else if (cString[i] == ':') {
[ret addObject: [OFString
stringWithUTF8String: cString + last
length: i - last + 1]];
last = i + 1;
}
}
if (i - last != 0)
[ret addObject: [OFString stringWithUTF8String: cString + last
length: i - last]];
[ret makeImmutable];
objc_autoreleasePoolPop(pool);
return ret;
}
- (OFString *)lastPathComponent
{
/*
* AmigaOS needs the full parsing to determine the last path component.
* This could be optimized by not creating the temporary objects,
* though.
*/
void *pool = objc_autoreleasePoolPush();
OFString *ret = self.pathComponents.lastObject;
[ret retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
- (OFString *)pathExtension
{
void *pool = objc_autoreleasePoolPush();
OFString *ret, *fileName;
size_t pos;
fileName = self.lastPathComponent;
pos = [fileName rangeOfString: @"."
options: OF_STRING_SEARCH_BACKWARDS].location;
if (pos == OF_NOT_FOUND || pos == 0) {
objc_autoreleasePoolPop(pool);
return @"";
}
ret = [fileName substringFromIndex: pos + 1];
[ret retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
- (OFString *)stringByDeletingLastPathComponent
{
/*
* AmigaOS needs the full parsing to delete the last path component.
* This could be optimized, though.
*/
void *pool = objc_autoreleasePoolPush();
OFArray OF_GENERIC(OFString *) *components = self.pathComponents;
size_t count = components.count;
OFString *ret;
if (count < 2) {
if ([components.firstObject hasSuffix: @":"]) {
ret = [components.firstObject retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
objc_autoreleasePoolPop(pool);
return @"";
}
components = [components objectsInRange:
of_range(0, components.count - 1)];
ret = [OFString pathWithComponents: components];
[ret retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
- (OFString *)stringByDeletingPathExtension
{
void *pool;
OFMutableArray OF_GENERIC(OFString *) *components;
OFString *ret, *fileName;
size_t pos;
if (self.length == 0)
return [[self copy] autorelease];
pool = objc_autoreleasePoolPush();
components = [[self.pathComponents mutableCopy] autorelease];
fileName = components.lastObject;
pos = [fileName rangeOfString: @"."
options: OF_STRING_SEARCH_BACKWARDS].location;
if (pos == OF_NOT_FOUND || pos == 0) {
objc_autoreleasePoolPop(pool);
return [[self copy] autorelease];
}
fileName = [fileName substringToIndex: pos];
[components replaceObjectAtIndex: components.count - 1
withObject: fileName];
ret = [OFString pathWithComponents: components];
[ret retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
- (OFString *)stringByStandardizingPath
{
void *pool = objc_autoreleasePoolPush();
OFArray OF_GENERIC(OFString *) *components;
OFMutableArray OF_GENERIC(OFString *) *array;
OFString *ret;
bool done = false;
if (self.length == 0)
return @"";
components = self.pathComponents;
if (components.count == 1) {
objc_autoreleasePoolPop(pool);
return [[self copy] autorelease];
}
array = [[components mutableCopy] autorelease];
while (!done) {
size_t length = array.count;
done = true;
for (size_t i = 0; i < length; i++) {
OFString *component = [array objectAtIndex: i];
OFString *parent =
(i > 0 ? [array objectAtIndex: i - 1] : 0);
if (component.length == 0) {
[array removeObjectAtIndex: i];
done = false;
break;
}
if ([component isEqual: @"/"] &&
parent != nil && ![parent isEqual: @"/"]) {
[array removeObjectsInRange:
of_range(i - 1, 2)];
done = false;
break;
}
}
}
ret = [OFString pathWithComponents: array];
if ([self hasSuffix: @"/"])
ret = [ret stringByAppendingString: @"/"];
[ret retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
- (OFString *)stringByAppendingPathComponent: (OFString *)component
{
if ([self hasSuffix: @"/"] || [self hasSuffix: @":"])
return [self stringByAppendingString: component];
else {
OFMutableString *ret = [[self mutableCopy] autorelease];
[ret appendString: @"/"];
[ret appendString: component];
[ret makeImmutable];
return ret;
}
}
- (bool)of_isDirectoryPath
{
return ([self hasSuffix: @"/"] || [self hasSuffix: @":"] ||
[OFFileURLHandler of_directoryExistsAtPath: self]);
}
- (OFString *)of_pathToURLPathWithURLEncodedHost: (OFString **)URLEncodedHost
{
OFArray OF_GENERIC(OFString *) *components = self.pathComponents;
OFMutableString *ret = [OFMutableString string];
for (OFString *component in components) {
if (component.length == 0)
continue;
if ([component isEqual: @"/"])
[ret appendString: @"/.."];
else {
[ret appendString: @"/"];
[ret appendString: component];
}
}
[ret makeImmutable];
return ret;
}
- (OFString *)of_URLPathToPathWithURLEncodedHost: (OFString *)URLEncodedHost
{
OFString *path = self;
if (path.length > 1 && [path hasSuffix: @"/"])
path = [path substringToIndex: path.length - 1];
OFMutableArray OF_GENERIC(OFString *) *components;
size_t count;
path = [path substringFromIndex: 1];
components = [[[path
componentsSeparatedByString: @"/"] mutableCopy] autorelease];
count = components.count;
for (size_t i = 0; i < count; i++) {
OFString *component = [components objectAtIndex: i];
if ([component isEqual: @"."]) {
[components removeObjectAtIndex: i];
count--;
i--;
continue;
}
if ([component isEqual: @".."])
[components replaceObjectAtIndex: i
withObject: @"/"];
}
return [OFString pathWithComponents: components];
}
- (OFString *)of_pathComponentToURLPathComponent
{
return self;
}
@end