/*
* Copyright (c) 2008, 2009, 2010, 2011
* Jonathan Schleifer <js@webkeks.org>
*
* 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"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <ctype.h>
#include <sys/stat.h>
#ifdef HAVE_MADVISE
# include <sys/mman.h>
#else
# define madvise(addr, len, advise)
#endif
#import "OFString.h"
#import "OFArray.h"
#import "OFDictionary.h"
#import "OFFile.h"
#import "OFURL.h"
#import "OFHTTPRequest.h"
#import "OFAutoreleasePool.h"
#import "OFHTTPRequestFailedException.h"
#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFInvalidEncodingException.h"
#import "OFInvalidFormatException.h"
#import "OFOpenFileFailedException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"
#import "macros.h"
#import "of_asprintf.h"
#import "unicode.h"
extern const uint16_t of_iso_8859_15[256];
extern const uint16_t of_windows_1252[256];
/* References for static linking */
void _references_to_categories_of_OFString(void)
{
_OFString_Hashing_reference = 1;
_OFString_URLEncoding_reference = 1;
_OFString_XMLEscaping_reference = 1;
_OFString_XMLUnescaping_reference = 1;
}
static inline int
memcasecmp(const char *first, const char *second, size_t length)
{
size_t i;
for (i = 0; i < length; i++) {
if (tolower((int)first[i]) > tolower((int)second[i]))
return OF_ORDERED_DESCENDING;
if (tolower((int)first[i]) < tolower((int)second[i]))
return OF_ORDERED_ASCENDING;
}
return OF_ORDERED_SAME;
}
int
of_string_check_utf8(const char *string, size_t length)
{
size_t i;
int isUTF8 = 0;
madvise((void*)string, length, MADV_SEQUENTIAL);
for (i = 0; i < length; i++) {
/* No sign of UTF-8 here */
if (OF_LIKELY(!(string[i] & 0x80)))
continue;
isUTF8 = 1;
/* We're missing a start byte here */
if (OF_UNLIKELY(!(string[i] & 0x40))) {
madvise((void*)string, length, MADV_NORMAL);
return -1;
}
/* We have at minimum a 2 byte character -> check next byte */
if (OF_UNLIKELY(length < i + 1 ||
(string[i + 1] & 0xC0) != 0x80)) {
madvise((void*)string, length, MADV_NORMAL);
return -1;
}
/* Check if we have at minimum a 3 byte character */
if (OF_LIKELY(!(string[i] & 0x20))) {
i++;
continue;
}
/* We have at minimum a 3 byte char -> check second next byte */
if (OF_UNLIKELY(length < i + 2 ||
(string[i + 2] & 0xC0) != 0x80)) {
madvise((void*)string, length, MADV_NORMAL);
return -1;
}
/* Check if we have a 4 byte character */
if (OF_LIKELY(!(string[i] & 0x10))) {
i += 2;
continue;
}
/* We have a 4 byte character -> check third next byte */
if (OF_UNLIKELY(length < i + 3 ||
(string[i + 3] & 0xC0) != 0x80)) {
madvise((void*)string, length, MADV_NORMAL);
return -1;
}
/*
* Just in case, check if there's a 5th character, which is
* forbidden by UTF-8
*/
if (OF_UNLIKELY(string[i] & 0x08)) {
madvise((void*)string, length, MADV_NORMAL);
return -1;
}
i += 3;
}
madvise((void*)string, length, MADV_NORMAL);
return isUTF8;
}
size_t
of_string_unicode_to_utf8(of_unichar_t character, char *buffer)
{
size_t i = 0;
if (character < 0x80) {
buffer[i] = character;
return 1;
}
if (character < 0x800) {
buffer[i++] = 0xC0 | (character >> 6);
buffer[i] = 0x80 | (character & 0x3F);
return 2;
}
if (character < 0x10000) {
buffer[i++] = 0xE0 | (character >> 12);
buffer[i++] = 0x80 | (character >> 6 & 0x3F);
buffer[i] = 0x80 | (character & 0x3F);
return 3;
}
if (character < 0x110000) {
buffer[i++] = 0xF0 | (character >> 18);
buffer[i++] = 0x80 | (character >> 12 & 0x3F);
buffer[i++] = 0x80 | (character >> 6 & 0x3F);
buffer[i] = 0x80 | (character & 0x3F);
return 4;
}
return 0;
}
size_t
of_string_utf8_to_unicode(const char *buffer_, size_t length, of_unichar_t *ret)
{
const uint8_t *buffer = (const uint8_t*)buffer_;
if (!(*buffer & 0x80)) {
*ret = buffer[0];
return 1;
}
if ((*buffer & 0xE0) == 0xC0) {
if (OF_UNLIKELY(length < 2))
return 0;
*ret = ((buffer[0] & 0x1F) << 6) | (buffer[1] & 0x3F);
return 2;
}
if ((*buffer & 0xF0) == 0xE0) {
if (OF_UNLIKELY(length < 3))
return 0;
*ret = ((buffer[0] & 0x0F) << 12) | ((buffer[1] & 0x3F) << 6) |
(buffer[2] & 0x3F);
return 3;
}
if ((*buffer & 0xF8) == 0xF0) {
if (OF_UNLIKELY(length < 4))
return 0;
*ret = ((buffer[0] & 0x07) << 18) | ((buffer[1] & 0x3F) << 12) |
((buffer[2] & 0x3F) << 6) | (buffer[3] & 0x3F);
return 4;
}
return 0;
}
size_t
of_string_position_to_index(const char *string, size_t position)
{
size_t i, index = position;
for (i = 0; i < position; i++)
if (OF_UNLIKELY((string[i] & 0xC0) == 0x80))
index--;
return index;
}
size_t
of_string_index_to_position(const char *string, size_t index, size_t length)
{
size_t i;
for (i = 0; i <= index; i++)
if (OF_UNLIKELY((string[i] & 0xC0) == 0x80))
if (++index > length)
return OF_INVALID_INDEX;
return index;
}
size_t
of_unicode_string_length(const of_unichar_t *string)
{
const of_unichar_t *string_ = string;
while (*string_ != '\0')
string_++;
return (uintptr_t)string_ - (uintptr_t)string;
}
@implementation OFString
+ string
{
return [[[self alloc] init] autorelease];
}
+ stringWithCString: (const char*)string
{
return [[[self alloc] initWithCString: string] autorelease];
}
+ stringWithCString: (const char*)string
encoding: (of_string_encoding_t)encoding
{
return [[[self alloc] initWithCString: string
encoding: encoding] autorelease];
}
+ stringWithCString: (const char*)string
encoding: (of_string_encoding_t)encoding
length: (size_t)length
{
return [[[self alloc] initWithCString: string
encoding: encoding
length: length] autorelease];
}
+ stringWithCString: (const char*)string
length: (size_t)length
{
return [[[self alloc] initWithCString: string
length: length] autorelease];
}
+ stringWithString: (OFString*)string
{
return [[[self alloc] initWithString: string] autorelease];
}
+ stringWithUnicodeString: (of_unichar_t*)string
{
return [[[self alloc] initWithUnicodeString: string] autorelease];
}
+ stringWithFormat: (OFString*)format, ...
{
id ret;
va_list arguments;
va_start(arguments, format);
ret = [[[self alloc] initWithFormat: format
arguments: arguments] autorelease];
va_end(arguments);
return ret;
}
+ stringWithPath: (OFString*)firstComponent, ...
{
id ret;
va_list arguments;
va_start(arguments, firstComponent);
ret = [[[self alloc] initWithPath: firstComponent
arguments: arguments] autorelease];
va_end(arguments);
return ret;
}
+ stringWithContentsOfFile: (OFString*)path
{
return [[[self alloc] initWithContentsOfFile: path] autorelease];
}
+ stringWithContentsOfFile: (OFString*)path
encoding: (of_string_encoding_t)encoding
{
return [[[self alloc] initWithContentsOfFile: path
encoding: encoding] autorelease];
}
+ stringWithContentsOfURL: (OFURL*)URL
{
return [[[self alloc] initWithContentsOfURL: URL] autorelease];
}
+ stringWithContentsOfURL: (OFURL*)URL
encoding: (of_string_encoding_t)encoding
{
return [[[self alloc] initWithContentsOfURL: URL
encoding: encoding] autorelease];
}
- init
{
self = [super init];
@try {
string = [self allocMemoryWithSize: 1];
string[0] = '\0';
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithCString: (const char*)string_
{
return [self initWithCString: string_
encoding: OF_STRING_ENCODING_UTF_8
length: strlen(string_)];
}
- initWithCString: (const char*)string_
encoding: (of_string_encoding_t)encoding
{
return [self initWithCString: string_
encoding: encoding
length: strlen(string_)];
}
- initWithCString: (const char*)string_
encoding: (of_string_encoding_t)encoding
length: (size_t)length_
{
self = [super init];
@try {
size_t i, j;
const uint16_t *table;
if (encoding == OF_STRING_ENCODING_UTF_8 &&
length_ >= 3 && !memcmp(string_, "\xEF\xBB\xBF", 3)) {
string_ += 3;
length_ -= 3;
}
string = [self allocMemoryWithSize: length_ + 1];
length = length_;
if (encoding == OF_STRING_ENCODING_UTF_8) {
switch (of_string_check_utf8(string_, length)) {
case 1:
isUTF8 = YES;
break;
case -1:
@throw [OFInvalidEncodingException
newWithClass: isa];
}
memcpy(string, string_, length);
string[length] = 0;
return self;
}
if (encoding == OF_STRING_ENCODING_ISO_8859_1) {
for (i = j = 0; i < length_; i++) {
char buf[4];
size_t bytes;
if (!(string_[i] & 0x80)) {
string[j++] = string_[i];
continue;
}
isUTF8 = YES;
bytes = of_string_unicode_to_utf8(
(uint8_t)string_[i], buf);
if (bytes == 0)
@throw [OFInvalidEncodingException
newWithClass: isa];
length += bytes - 1;
string = [self resizeMemory: string
toSize: length + 1];
memcpy(string + j, buf, bytes);
j += bytes;
}
string[length] = 0;
return self;
}
switch (encoding) {
case OF_STRING_ENCODING_ISO_8859_15:
table = of_iso_8859_15;
break;
case OF_STRING_ENCODING_WINDOWS_1252:
table = of_windows_1252;
break;
default:
@throw [OFInvalidEncodingException newWithClass: isa];
}
for (i = j = 0; i < length_; i++) {
char buf[4];
of_unichar_t character;
size_t characterBytes;
if (!(string_[i] & 0x80)) {
string[j++] = string_[i];
continue;
}
character = table[(uint8_t)string_[i]];
if (character == 0xFFFD)
@throw [OFInvalidEncodingException
newWithClass: isa];
isUTF8 = YES;
characterBytes = of_string_unicode_to_utf8(character,
buf);
if (characterBytes == 0)
@throw [OFInvalidEncodingException
newWithClass: isa];
length += characterBytes - 1;
string = [self resizeMemory: string
toSize: length + 1];
memcpy(string + j, buf, characterBytes);
j += characterBytes;
}
string[length] = 0;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithCString: (const char*)string_
length: (size_t)length_
{
return [self initWithCString: string_
encoding: OF_STRING_ENCODING_UTF_8
length: length_];
}
- initWithString: (OFString*)string_
{
self = [super init];
@try {
/* We have no -[dealloc], so this is ok */
string = (char*)[string_ cString];
length = [string_ cStringLength];
switch (of_string_check_utf8(string, length)) {
case 1:
isUTF8 = YES;
break;
case -1:;
@throw [OFInvalidEncodingException newWithClass: isa];
}
if ((string = strdup(string)) == NULL)
@throw [OFOutOfMemoryException
newWithClass: isa
requestedSize: length + 1];
@try {
[self addMemoryToPool: string];
} @catch (id e) {
free(string);
@throw e;
}
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithUnicodeString: (of_unichar_t*)string_
{
self = [super init];
@try {
char buffer[4];
size_t i = 0;
BOOL swap = NO;
if (*string_ == 0xFEFF)
string_++;
if (*string_ == 0xFFFE0000) {
swap = YES;
string_++;
}
length = of_unicode_string_length(string_);
string = [self allocMemoryWithSize: length + 1];
while (*string_ != '\0') {
size_t characterLen;
if (swap)
characterLen = of_string_unicode_to_utf8(
of_bswap32(*string_), buffer);
else
characterLen = of_string_unicode_to_utf8(
*string_, buffer);
switch (characterLen) {
case 1:
string[i++] = buffer[0];
break;
case 2:
isUTF8 = YES;
length++;
string = [self resizeMemory: string
toSize: length + 1];
memcpy(string + i, buffer, 2);
i += 2;
break;
case 3:
isUTF8 = YES;
length += 2;
string = [self resizeMemory: string
toSize: length + 1];
memcpy(string + i, buffer, 3);
i += 3;
break;
case 4:
isUTF8 = YES;
length += 3;
string = [self resizeMemory: string
toSize: length + 1];
memcpy(string + i, buffer, 4);
i += 4;
break;
default:
@throw [OFInvalidEncodingException
newWithClass: isa];
}
string_++;
}
string[i] = '\0';
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithFormat: (OFString*)format, ...
{
id ret;
va_list arguments;
va_start(arguments, format);
ret = [self initWithFormat: format
arguments: arguments];
va_end(arguments);
return ret;
}
- initWithFormat: (OFString*)format
arguments: (va_list)arguments
{
self = [super init];
@try {
int len;
if (format == nil)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
if ((len = of_vasprintf(&string, [format cString],
arguments)) == -1)
@throw [OFInvalidFormatException newWithClass: isa];
@try {
length = len;
switch (of_string_check_utf8(string, length)) {
case 1:
isUTF8 = YES;
break;
case -1:
@throw [OFInvalidEncodingException
newWithClass: isa];
}
[self addMemoryToPool: string];
} @catch (id e) {
free(string);
}
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithPath: (OFString*)firstComponent, ...
{
id ret;
va_list arguments;
va_start(arguments, firstComponent);
ret = [self initWithPath: firstComponent
arguments: arguments];
va_end(arguments);
return ret;
}
- initWithPath: (OFString*)firstComponent
arguments: (va_list)arguments
{
self = [super init];
@try {
OFString *component;
size_t len, i;
va_list argumentsCopy;
length = [firstComponent cStringLength];
switch (of_string_check_utf8([firstComponent cString],
length)) {
case 1:
isUTF8 = YES;
break;
case -1:
@throw [OFInvalidEncodingException newWithClass: isa];
}
/* Calculate length */
va_copy(argumentsCopy, arguments);
while ((component = va_arg(argumentsCopy, OFString*)) != nil) {
len = [component cStringLength];
length += 1 + len;
switch (of_string_check_utf8([component cString],
len)) {
case 1:
isUTF8 = YES;
break;
case -1:
@throw [OFInvalidEncodingException
newWithClass: isa];
}
}
string = [self allocMemoryWithSize: length + 1];
len = [firstComponent cStringLength];
memcpy(string, [firstComponent cString], len);
i = len;
while ((component = va_arg(arguments, OFString*)) != nil) {
len = [component cStringLength];
string[i] = OF_PATH_DELIM;
memcpy(string + i + 1, [component cString], len);
i += len + 1;
}
string[i] = '\0';
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithContentsOfFile: (OFString*)path
{
return [self initWithContentsOfFile: path
encoding: OF_STRING_ENCODING_UTF_8];
}
- initWithContentsOfFile: (OFString*)path
encoding: (of_string_encoding_t)encoding
{
char *tmp;
struct stat s;
self = [super init];
@try {
OFFile *file;
if (stat([path cString], &s) == -1)
@throw [OFOpenFileFailedException newWithClass: isa
path: path
mode: @"rb"];
if (s.st_size > SIZE_MAX)
@throw [OFOutOfRangeException newWithClass: isa];
file = [[OFFile alloc] initWithPath: path
mode: @"rb"];
@try {
tmp = [self allocMemoryWithSize: (size_t)s.st_size];
[file readExactlyNBytes: (size_t)s.st_size
intoBuffer: tmp];
} @finally {
[file release];
}
} @catch (id e) {
[self release];
@throw e;
}
self = [self initWithCString: tmp
encoding: encoding
length: (size_t)s.st_size];
[self freeMemory: tmp];
return self;
}
- initWithContentsOfURL: (OFURL*)URL
{
return [self initWithContentsOfURL: URL
encoding: OF_STRING_ENCODING_AUTODETECT];
}
- initWithContentsOfURL: (OFURL*)URL
encoding: (of_string_encoding_t)encoding
{
OFAutoreleasePool *pool;
OFHTTPRequest *request;
OFHTTPRequestResult *result;
OFMutableString *contentType;
Class c;
c = isa;
[self release];
pool = [[OFAutoreleasePool alloc] init];
if ([[URL scheme] isEqual: @"file"]) {
if (encoding == OF_STRING_ENCODING_AUTODETECT)
encoding = OF_STRING_ENCODING_UTF_8;
self = [[c alloc] initWithContentsOfFile: [URL path]
encoding: encoding];
[pool release];
return self;
}
request = [OFHTTPRequest requestWithURL: URL];
result = [request perform];
if ([result statusCode] != 200)
@throw [OFHTTPRequestFailedException
newWithClass: [request class]
HTTPRequest: request
result: result];
if (encoding == OF_STRING_ENCODING_AUTODETECT &&
(contentType = [[result headers] objectForKey: @"Content-Type"])) {
contentType = [[contentType mutableCopy] autorelease];
[contentType lower];
if ([contentType hasSuffix: @"charset=UTF-8"])
encoding = OF_STRING_ENCODING_UTF_8;
if ([contentType hasSuffix: @"charset=iso-8859-1"])
encoding = OF_STRING_ENCODING_ISO_8859_1;
if ([contentType hasSuffix: @"charset=iso-8859-15"])
encoding = OF_STRING_ENCODING_ISO_8859_15;
if ([contentType hasSuffix: @"charset=windows-1252"])
encoding = OF_STRING_ENCODING_WINDOWS_1252;
}
if (encoding == OF_STRING_ENCODING_AUTODETECT)
encoding = OF_STRING_ENCODING_UTF_8;
self = [[c alloc] initWithCString: (char*)[[result data] cArray]
encoding: encoding
length: [[result data] count]];
[pool release];
return self;
}
- (const char*)cString
{
return string;
}
- (size_t)length
{
/* FIXME: Maybe cache this in an ivar? */
if (![self isUTF8])
return length;
return of_string_position_to_index(string, length);
}
- (size_t)cStringLength
{
return length;
}
- (BOOL)isUTF8
{
return isUTF8;
}
- (BOOL)isEqual: (id)object
{
OFString *otherString;
if (![object isKindOfClass: [OFString class]])
return NO;
otherString = (OFString*)object;
if (strcmp(string, [otherString cString]))
return NO;
return YES;
}
- copy
{
return [self retain];
}
- mutableCopy
{
return [[OFMutableString alloc] initWithString: self];
}
- (of_comparison_result_t)compare: (id)object
{
OFString *otherString;
size_t otherLen, minLen;
int cmp;
if (![object isKindOfClass: [OFString class]])
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
otherString = (OFString*)object;
otherLen = [otherString cStringLength];
minLen = (length > otherLen ? otherLen : length);
if ((cmp = memcmp(string, [otherString cString], minLen)) == 0) {
if (length > otherLen)
return OF_ORDERED_DESCENDING;
if (length < otherLen)
return OF_ORDERED_ASCENDING;
return OF_ORDERED_SAME;
}
if (cmp > 0)
return OF_ORDERED_DESCENDING;
else
return OF_ORDERED_ASCENDING;
}
- (of_comparison_result_t)caseInsensitiveCompare: (OFString*)otherString;
{
const char *otherCString;
size_t i, j, otherLen, minLen;
int cmp;
if (![otherString isKindOfClass: [OFString class]])
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
otherCString = [otherString cString];
otherLen = [otherString cStringLength];
if (![self isUTF8]) {
minLen = (length > otherLen ? otherLen : length);
if ((cmp = memcasecmp(string, otherCString, minLen)) == 0) {
if (length > otherLen)
return OF_ORDERED_DESCENDING;
if (length < otherLen)
return OF_ORDERED_ASCENDING;
return OF_ORDERED_SAME;
}
if (cmp > 0)
return OF_ORDERED_DESCENDING;
else
return OF_ORDERED_ASCENDING;
}
i = j = 0;
while (i < length && j < otherLen) {
of_unichar_t c1, c2;
size_t l1, l2;
l1 = of_string_utf8_to_unicode(string + i, length - i, &c1);
l2 = of_string_utf8_to_unicode(otherCString + j, otherLen - j,
&c2);
if (l1 == 0 || l2 == 0 || c1 > 0x10FFFF || c2 > 0x10FFFF)
@throw [OFInvalidEncodingException newWithClass: isa];
if (c1 >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {
of_unichar_t tc =
of_unicode_casefolding_table[c1 >> 8][c1 & 0xFF];
if (tc)
c1 = tc;
}
if (c2 >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {
of_unichar_t tc =
of_unicode_casefolding_table[c2 >> 8][c2 & 0xFF];
if (tc)
c2 = tc;
}
if (c1 > c2)
return OF_ORDERED_DESCENDING;
if (c1 < c2)
return OF_ORDERED_ASCENDING;
i += l1;
j += l2;
}
if (length - i > otherLen - j)
return OF_ORDERED_DESCENDING;
else if (length - i < otherLen - j)
return OF_ORDERED_ASCENDING;
return OF_ORDERED_SAME;
}
- (uint32_t)hash
{
uint32_t hash;
size_t i;
OF_HASH_INIT(hash);
for (i = 0; i < length; i++)
OF_HASH_ADD(hash, string[i]);
OF_HASH_FINALIZE(hash);
return hash;
}
- (OFString*)description
{
return [[self copy] autorelease];
}
- (of_unichar_t)characterAtIndex: (size_t)index
{
of_unichar_t c;
if (![self isUTF8]) {
if (index >= length)
@throw [OFOutOfRangeException newWithClass: isa];
return string[index];
}
index = of_string_index_to_position(string, index, length);
if (index >= length)
@throw [OFOutOfRangeException newWithClass: isa];
if (!of_string_utf8_to_unicode(string + index, length - index, &c))
@throw [OFInvalidEncodingException newWithClass: isa];
return c;
}
- (size_t)indexOfFirstOccurrenceOfString: (OFString*)string_
{
const char *cString = [string_ cString];
size_t stringLen = [string_ cStringLength];
size_t i;
if (stringLen == 0)
return 0;
if (stringLen > length)
return OF_INVALID_INDEX;
for (i = 0; i <= length - stringLen; i++)
if (!memcmp(string + i, cString, stringLen))
return of_string_position_to_index(string, i);
return OF_INVALID_INDEX;
}
- (size_t)indexOfLastOccurrenceOfString: (OFString*)string_
{
const char *cString = [string_ cString];
size_t stringLen = [string_ cStringLength];
size_t i;
if (stringLen == 0)
return of_string_position_to_index(string, length);
if (stringLen > length)
return OF_INVALID_INDEX;
for (i = length - stringLen;; i--) {
if (!memcmp(string + i, cString, stringLen))
return of_string_position_to_index(string, i);
/* Did not match and we're at the last char */
if (i == 0)
return OF_INVALID_INDEX;
}
}
- (BOOL)containsString: (OFString*)string_
{
const char *cString = [string_ cString];
size_t stringLen = [string_ cStringLength];
size_t i;
if (stringLen == 0)
return YES;
if (stringLen > length)
return NO;
for (i = 0; i <= length - stringLen; i++)
if (!memcmp(string + i, cString, stringLen))
return YES;
return NO;
}
- (OFString*)substringFromIndex: (size_t)start
toIndex: (size_t)end
{
if ([self isUTF8]) {
start = of_string_index_to_position(string, start, length);
end = of_string_index_to_position(string, end, length);
}
if (start > end)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
if (end > length)
@throw [OFOutOfRangeException newWithClass: isa];
return [OFString stringWithCString: string + start
length: end - start];
}
- (OFString*)substringWithRange: (of_range_t)range
{
return [self substringFromIndex: range.start
toIndex: range.start + range.length];
}
- (OFString*)stringByAppendingString: (OFString*)string_
{
OFMutableString *new;
new = [OFMutableString stringWithString: self];
[new appendString: string_];
/*
* Class swizzle the string to be immutable. We declared the return type
* to be OFString*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
new->isa = [OFString class];
return new;
}
- (OFString*)uppercaseString
{
OFMutableString *new;
new = [OFMutableString stringWithString: self];
[new upper];
/*
* Class swizzle the string to be immutable. We declared the return type
* to be OFString*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
new->isa = [OFString class];
return new;
}
- (OFString*)lowercaseString
{
OFMutableString *new;
new = [OFMutableString stringWithString: self];
[new lower];
/*
* Class swizzle the string to be immutable. We declared the return type
* to be OFString*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
new->isa = [OFString class];
return new;
}
- (OFString*)stringByDeletingLeadingWhitespaces
{
OFMutableString *new;
new = [OFMutableString stringWithString: self];
[new deleteLeadingWhitespaces];
/*
* Class swizzle the string to be immutable. We declared the return type
* to be OFString*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
new->isa = [OFString class];
return new;
}
- (OFString*)stringByDeletingTrailingWhitespaces
{
OFMutableString *new;
new = [OFMutableString stringWithString: self];
[new deleteTrailingWhitespaces];
/*
* Class swizzle the string to be immutable. We declared the return type
* to be OFString*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
new->isa = [OFString class];
return new;
}
- (OFString*)stringByDeletingLeadingAndTrailingWhitespaces
{
OFMutableString *new;
new = [OFMutableString stringWithString: self];
[new deleteLeadingAndTrailingWhitespaces];
/*
* Class swizzle the string to be immutable. We declared the return type
* to be OFString*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
new->isa = [OFString class];
return new;
}
- (BOOL)hasPrefix: (OFString*)prefix
{
size_t len = [prefix cStringLength];
if (len > length)
return NO;
return !memcmp(string, [prefix cString], len);
}
- (BOOL)hasSuffix: (OFString*)suffix
{
size_t len = [suffix cStringLength];
if (len > length)
return NO;
return !memcmp(string + (length - len), [suffix cString], len);
}
- (OFArray*)componentsSeparatedByString: (OFString*)delimiter
{
OFAutoreleasePool *pool;
OFMutableArray *array;
const char *delim = [delimiter cString];
size_t delimLen = [delimiter cStringLength];
size_t i, last;
array = [OFMutableArray array];
pool = [[OFAutoreleasePool alloc] init];
if (delimLen > length) {
[array addObject: [[self copy] autorelease]];
[pool release];
return array;
}
for (i = 0, last = 0; i <= length - delimLen; i++) {
if (memcmp(string + i, delim, delimLen))
continue;
[array addObject: [OFString stringWithCString: string + last
length: i - last]];
i += delimLen - 1;
last = i + 1;
}
[array addObject: [OFString stringWithCString: string + last]];
[pool release];
/*
* Class swizzle the array to be immutable. We declared the return type
* to be OFArray*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
array->isa = [OFArray class];
return array;
}
- (OFArray*)pathComponents
{
OFMutableArray *ret;
OFAutoreleasePool *pool;
size_t i, last = 0, pathLen = length;
ret = [OFMutableArray array];
if (pathLen == 0)
return ret;
pool = [[OFAutoreleasePool alloc] init];
#ifndef _WIN32
if (string[pathLen - 1] == OF_PATH_DELIM)
#else
if (string[pathLen - 1] == '/' || string[pathLen - 1] == '\\')
#endif
pathLen--;
for (i = 0; i < pathLen; i++) {
#ifndef _WIN32
if (string[i] == OF_PATH_DELIM) {
#else
if (string[i] == '/' || string[i] == '\\') {
#endif
[ret addObject:
[OFString stringWithCString: string + last
length: i - last]];
last = i + 1;
}
}
[ret addObject: [OFString stringWithCString: string + last
length: i - last]];
[pool release];
/*
* Class swizzle the array to be immutable. We declared the return type
* to be OFArray*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
ret->isa = [OFArray class];
return ret;
}
- (OFString*)lastPathComponent
{
size_t pathLen = length;
ssize_t i;
if (pathLen == 0)
return @"";
#ifndef _WIN32
if (string[pathLen - 1] == OF_PATH_DELIM)
#else
if (string[pathLen - 1] == '/' || string[pathLen - 1] == '\\')
#endif
pathLen--;
for (i = pathLen - 1; i >= 0; i--) {
#ifndef _WIN32
if (string[i] == OF_PATH_DELIM) {
#else
if (string[i] == '/' || string[i] == '\\') {
#endif
i++;
break;
}
}
/*
* Only one component, but the trailing delimiter might have been
* removed, so return a new string anyway.
*/
if (i < 0)
i = 0;
return [OFString stringWithCString: string + i
length: pathLen - i];
}
- (OFString*)stringByDeletingLastPathComponent;
{
size_t i, pathLen = length;
if (pathLen == 0)
return @"";
#ifndef _WIN32
if (string[pathLen - 1] == OF_PATH_DELIM)
#else
if (string[pathLen - 1] == '/' || string[pathLen - 1] == '\\')
#endif
pathLen--;
if (pathLen == 0)
return [OFString stringWithCString: string
length: 1];
for (i = pathLen - 1; i >= 1; i--)
#ifndef _WIN32
if (string[i] == OF_PATH_DELIM)
#else
if (string[i] == '/' || string[i] == '\\')
#endif
return [OFString stringWithCString: string
length: i];
#ifndef _WIN32
if (string[0] == OF_PATH_DELIM)
#else
if (string[i] == '/' || string[i] == '\\')
#endif
return [OFString stringWithCString: string
length: 1];
return @".";
}
- (intmax_t)decimalValue
{
const char *str = string;
size_t len = length;
int i = 0;
intmax_t num = 0;
BOOL expectWhitespace = NO;
while (*str == ' ' || *str == '\t' || *str == '\n' || *str == '\r') {
str++;
len--;
}
if (str[0] == '-' || str[0] == '+')
i++;
for (; i < len; i++) {
if (expectWhitespace) {
if (str[i] != ' ' && str[i] != '\t' &&
str[i] != '\n' && str[i] != '\r')
@throw [OFInvalidFormatException
newWithClass: isa];
continue;
}
if (str[i] >= '0' && str[i] <= '9') {
if (INTMAX_MAX / 10 < num ||
INTMAX_MAX - num * 10 < str[i] - '0')
@throw [OFOutOfRangeException
newWithClass: isa];
num = (num * 10) + (str[i] - '0');
} else if (str[i] == ' ' || str[i] == '\t' ||
str[i] == '\n' || str[i] == '\r')
expectWhitespace = YES;
else
@throw [OFInvalidFormatException newWithClass: isa];
}
if (str[0] == '-')
num *= -1;
return num;
}
- (uintmax_t)hexadecimalValue
{
const char *str = string;
size_t len = length;
int i = 0;
uintmax_t num = 0;
BOOL expectWhitespace = NO, gotNumber = NO;
while (*str == ' ' || *str == '\t' || *str == '\n' || *str == '\r') {
str++;
len--;
}
if (len == 0)
return 0;
if (len >= 2 && str[0] == '0' && str[1] == 'x')
i = 2;
else if (len >= 1 && (str[0] == 'x' || str[0] == '$'))
i = 1;
for (; i < len; i++) {
uintmax_t newnum;
if (expectWhitespace) {
if (str[i] != ' ' && str[i] != '\t' &&
str[i] != '\n' && str[i] != '\r')
@throw [OFInvalidFormatException
newWithClass: isa];
continue;
}
if (str[i] >= '0' && str[i] <= '9') {
newnum = (num << 4) | (str[i] - '0');
gotNumber = YES;
} else if (str[i] >= 'A' && str[i] <= 'F') {
newnum = (num << 4) | (str[i] - 'A' + 10);
gotNumber = YES;
} else if (str[i] >= 'a' && str[i] <= 'f') {
newnum = (num << 4) | (str[i] - 'a' + 10);
gotNumber = YES;
} else if (str[i] == 'h' || str[i] == ' ' || str[i] == '\t' ||
str[i] == '\n' || str[i] == '\r') {
expectWhitespace = YES;
continue;
} else
@throw [OFInvalidFormatException newWithClass: isa];
if (newnum < num)
@throw [OFOutOfRangeException newWithClass: isa];
num = newnum;
}
if (!gotNumber)
@throw [OFInvalidFormatException newWithClass: isa];
return num;
}
- (float)floatValue
{
const char *str = string;
char *endPtr;
float value;
/* Don't depend on isspace and thus the used locale */
while (*str == ' ' || *str == '\t' || *str == '\n' || *str == '\r')
str++;
value = strtof(str, &endPtr);
/* Check if there are any invalid chars left */
if (endPtr != NULL) {
for (; *endPtr != '\0'; endPtr++)
if (*endPtr != ' ' && *endPtr != '\t' &&
*endPtr != '\n' && *endPtr != '\r')
@throw [OFInvalidFormatException
newWithClass: isa];
}
return value;
}
- (double)doubleValue
{
const char *str = string;
char *endPtr;
double value;
/* Don't depend on isspace and thus the used locale */
while (*str == ' ' || *str == '\t' || *str == '\n' || *str == '\r')
str++;
value = strtod(str, &endPtr);
/* Check if there are any invalid chars left */
if (endPtr != NULL) {
for (; *endPtr != '\0'; endPtr++)
if (*endPtr != ' ' && *endPtr != '\t' &&
*endPtr != '\n' && *endPtr != '\r')
@throw [OFInvalidFormatException
newWithClass: isa];
}
return value;
}
- (of_unichar_t*)unicodeString
{
OFObject *object = [[[OFObject alloc] init] autorelease];
of_unichar_t *ret;
size_t i, j;
ret = [object allocMemoryForNItems: [self length] + 2
withSize: sizeof(of_unichar_t)];
i = 0;
j = 0;
ret[j++] = 0xFEFF;
while (i < length) {
of_unichar_t c;
size_t cLen;
cLen = of_string_utf8_to_unicode(string + i, length - i, &c);
if (cLen == 0 || c > 0x10FFFF) {
free(ret);
@throw [OFInvalidEncodingException newWithClass: isa];
}
ret[j++] = c;
i += cLen;
}
ret[j] = 0;
return ret;
}
- (void)writeToFile: (OFString*)path
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFFile *file;
file = [OFFile fileWithPath: path
mode: @"wb"];
[file writeString: self];
[pool release];
}
@end