mirror of
https://github.com/mozilla/gecko-dev.git
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360 lines
8.5 KiB
C++
360 lines
8.5 KiB
C++
/* vim:set ts=2 sw=2 et cindent: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla.
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*
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* The Initial Developer of the Original Code is IBM Corporation.
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* Portions created by IBM Corporation are Copyright (C) 2003
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* IBM Corporation. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@meer.net>
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* Benjamin Smedberg <benjamin@smedbergs.us>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nscore.h"
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#include "nsCRTGlue.h"
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#ifdef MOZILLA_INTERNAL_API
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#undef nsAString
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#undef nsACString
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#endif
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#include "nsXPCOMStrings.h"
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#ifdef MOZILLA_INTERNAL_API
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#undef MOZILLA_INTERNAL_API
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#endif
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#include "nsStringAPI.h"
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// nsAString
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PRUint32
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nsAString::BeginReading(const char_type **begin, const char_type **end) const
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{
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PRUint32 len = NS_StringGetData(*this, begin);
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if (end)
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*end = *begin + len;
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return len;
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}
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const nsAString::char_type*
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nsAString::BeginReading() const
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{
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const char_type *data;
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NS_StringGetData(*this, &data);
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return data;
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}
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const nsAString::char_type*
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nsAString::EndReading() const
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{
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const char_type *data;
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PRUint32 len = NS_StringGetData(*this, &data);
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return data + len;
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}
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PRUint32
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nsAString::BeginWriting(char_type **begin, char_type **end, PRUint32 newSize)
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{
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PRUint32 len = NS_StringGetMutableData(*this, newSize, begin);
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if (end)
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*end = *begin + len;
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return len;
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}
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nsAString::char_type*
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nsAString::BeginWriting()
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{
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char_type *data;
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NS_StringGetMutableData(*this, PR_UINT32_MAX, &data);
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return data;
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}
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nsAString::char_type*
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nsAString::EndWriting()
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{
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char_type *data;
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PRUint32 len = NS_StringGetMutableData(*this, PR_UINT32_MAX, &data);
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return data + len;
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}
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PRBool
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nsAString::SetLength(PRUint32 aLen)
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{
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char_type *data;
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NS_StringGetMutableData(*this, aLen, &data);
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return data != nsnull;
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}
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PRInt32
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nsAString::DefaultComparator(const char_type *a, const char_type *b,
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PRUint32 len)
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{
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for (const char_type *end = a + len; a < end; ++a, ++b) {
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if (*a == *b)
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continue;
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return a < b ? -1 : 1;
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}
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return 0;
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}
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PRBool
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nsAString::Equals(const char_type *other, ComparatorFunc c) const
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{
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const char_type *cself;
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PRUint32 selflen = NS_StringGetData(*this, &cself);
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PRUint32 otherlen = NS_strlen(other);
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if (selflen != otherlen)
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return PR_FALSE;
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return c(cself, other, selflen) == 0;
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}
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PRBool
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nsAString::Equals(const self_type &other, ComparatorFunc c) const
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{
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const char_type *cself;
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const char_type *cother;
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PRUint32 selflen = NS_StringGetData(*this, &cself);
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PRUint32 otherlen = NS_StringGetData(other, &cother);
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if (selflen != otherlen)
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return PR_FALSE;
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return c(cself, cother, selflen) == 0;
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}
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PRInt32
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nsAString::RFindChar(char_type aChar) const
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{
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const PRUnichar *start, *end;
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BeginReading(&start, &end);
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do {
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--end;
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if (*end == aChar)
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return end - start;
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} while (end >= start);
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return -1;
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}
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// nsACString
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PRUint32
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nsACString::BeginReading(const char_type **begin, const char_type **end) const
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{
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PRUint32 len = NS_CStringGetData(*this, begin);
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if (end)
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*end = *begin + len;
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return len;
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}
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const nsACString::char_type*
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nsACString::BeginReading() const
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{
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const char_type *data;
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NS_CStringGetData(*this, &data);
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return data;
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}
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const nsACString::char_type*
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nsACString::EndReading() const
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{
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const char_type *data;
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PRUint32 len = NS_CStringGetData(*this, &data);
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return data + len;
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}
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PRUint32
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nsACString::BeginWriting(char_type **begin, char_type **end, PRUint32 newSize)
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{
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PRUint32 len = NS_CStringGetMutableData(*this, newSize, begin);
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if (end)
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*end = *begin + len;
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return len;
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}
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nsACString::char_type*
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nsACString::BeginWriting()
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{
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char_type *data;
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NS_CStringGetMutableData(*this, PR_UINT32_MAX, &data);
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return data;
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}
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nsACString::char_type*
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nsACString::EndWriting()
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{
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char_type *data;
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PRUint32 len = NS_CStringGetMutableData(*this, PR_UINT32_MAX, &data);
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return data + len;
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}
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PRBool
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nsACString::SetLength(PRUint32 aLen)
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{
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char_type *data;
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NS_CStringGetMutableData(*this, aLen, &data);
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return data != nsnull;
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}
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PRInt32
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nsACString::DefaultComparator(const char_type *a, const char_type *b,
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PRUint32 len)
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{
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return memcmp(a, b, len);
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}
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PRBool
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nsACString::Equals(const char_type *other, ComparatorFunc c) const
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{
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const char_type *cself;
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PRUint32 selflen = NS_CStringGetData(*this, &cself);
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PRUint32 otherlen = strlen(other);
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if (selflen != otherlen)
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return PR_FALSE;
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return c(cself, other, selflen) == 0;
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}
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PRBool
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nsACString::Equals(const self_type &other, ComparatorFunc c) const
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{
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const char_type *cself;
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const char_type *cother;
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PRUint32 selflen = NS_CStringGetData(*this, &cself);
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PRUint32 otherlen = NS_CStringGetData(other, &cother);
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if (selflen != otherlen)
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return PR_FALSE;
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return c(cself, cother, selflen) == 0;
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}
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PRInt32
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nsACString::RFindChar(char_type aChar) const
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{
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const char *start, *end;
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BeginReading(&start, &end);
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for (; end >= start; --end) {
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if (*end == aChar)
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return end - start;
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}
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return -1;
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}
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// Substrings
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nsDependentSubstring::nsDependentSubstring(const abstract_string_type& aStr,
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PRUint32 aStartPos)
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{
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const PRUnichar* data;
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PRUint32 len = NS_StringGetData(aStr, &data);
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if (aStartPos > len)
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aStartPos = len;
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NS_StringContainerInit2(*this, data + aStartPos, len - aStartPos,
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NS_STRING_CONTAINER_INIT_DEPEND |
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NS_STRING_CONTAINER_INIT_SUBSTRING);
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}
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nsDependentSubstring::nsDependentSubstring(const abstract_string_type& aStr,
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PRUint32 aStartPos,
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PRUint32 aLength)
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{
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const PRUnichar* data;
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PRUint32 len = NS_StringGetData(aStr, &data);
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if (aStartPos > len)
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aStartPos = len;
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if (aStartPos + aLength > len)
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aLength = len - aStartPos;
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NS_StringContainerInit2(*this, data + aStartPos, aLength,
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NS_STRING_CONTAINER_INIT_DEPEND |
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NS_STRING_CONTAINER_INIT_SUBSTRING);
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}
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nsDependentCSubstring::nsDependentCSubstring(const abstract_string_type& aStr,
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PRUint32 aStartPos)
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{
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const char* data;
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PRUint32 len = NS_CStringGetData(aStr, &data);
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if (aStartPos > len)
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aStartPos = len;
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NS_CStringContainerInit2(*this, data + aStartPos, len - aStartPos,
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NS_CSTRING_CONTAINER_INIT_DEPEND |
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NS_CSTRING_CONTAINER_INIT_SUBSTRING);
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}
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nsDependentCSubstring::nsDependentCSubstring(const abstract_string_type& aStr,
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PRUint32 aStartPos,
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PRUint32 aLength)
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{
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const char* data;
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PRUint32 len = NS_CStringGetData(aStr, &data);
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if (aStartPos > len)
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aStartPos = len;
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if (aStartPos + aLength > len)
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aLength = len - aStartPos;
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NS_CStringContainerInit2(*this, data + aStartPos, aLength,
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NS_CSTRING_CONTAINER_INIT_DEPEND |
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NS_CSTRING_CONTAINER_INIT_SUBSTRING);
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}
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// Utils
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char*
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ToNewUTF8String(const nsAString& aSource)
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{
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nsCString temp;
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CopyUTF16toUTF8(aSource, temp);
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return NS_CStringCloneData(temp);
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}
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