/gecko_api/include/nsStringAPI.h
C Header | 1421 lines | 887 code | 235 blank | 299 comment | 11 complexity | ed72703944a0b842913c2150e06d9cec MD5 | raw file
- /* vim:set ts=2 sw=2 et cindent: */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla.
- *
- * The Initial Developer of the Original Code is IBM Corporation.
- * Portions created by IBM Corporation are Copyright (C) 2003
- * IBM Corporation. All Rights Reserved.
- *
- * Contributor(s):
- * Darin Fisher <darin@meer.net>
- * Benjamin Smedberg <benjamin@smedbergs.us>
- * Ben Turner <mozilla@songbirdnest.com>
- * Prasad Sunkari <prasad@medhas.org>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- /**
- * This header provides wrapper classes around the frozen string API
- * which are roughly equivalent to the internal string classes.
- */
- #ifdef MOZILLA_INTERNAL_API
- #error nsStringAPI.h is only usable from non-MOZILLA_INTERNAL_API code!
- #endif
- #ifndef nsStringAPI_h__
- #define nsStringAPI_h__
- #include "nsXPCOMStrings.h"
- #include "nsISupportsImpl.h"
- #include "prlog.h"
- class nsAString
- {
- public:
- typedef PRUnichar char_type;
- typedef nsAString self_type;
- typedef PRUint32 size_type;
- typedef PRUint32 index_type;
- /**
- * Returns the length, beginning, and end of a string in one operation.
- */
- NS_HIDDEN_(PRUint32) BeginReading(const char_type **begin,
- const char_type **end = nsnull) const;
- NS_HIDDEN_(const char_type*) BeginReading() const;
- NS_HIDDEN_(const char_type*) EndReading() const;
- NS_HIDDEN_(char_type) CharAt(PRUint32 aPos) const
- {
- NS_ASSERTION(aPos < Length(), "Out of bounds");
- return BeginReading()[aPos];
- }
- NS_HIDDEN_(char_type) operator [](PRUint32 aPos) const
- {
- return CharAt(aPos);
- }
- NS_HIDDEN_(char_type) First() const
- {
- return CharAt(0);
- }
- /**
- * Get the length, begin writing, and optionally set the length of a
- * string all in one operation.
- *
- * @param newSize Size the string to this length. Pass PR_UINT32_MAX
- * to leave the length unchanged.
- * @return The new length of the string, or 0 if resizing failed.
- */
- NS_HIDDEN_(PRUint32) BeginWriting(char_type **begin,
- char_type **end = nsnull,
- PRUint32 newSize = PR_UINT32_MAX);
- NS_HIDDEN_(char_type*) BeginWriting(PRUint32 = PR_UINT32_MAX);
- NS_HIDDEN_(char_type*) EndWriting();
- NS_HIDDEN_(PRBool) SetLength(PRUint32 aLen);
- NS_HIDDEN_(size_type) Length() const
- {
- const char_type* data;
- return NS_StringGetData(*this, &data);
- }
- NS_HIDDEN_(PRBool) IsEmpty() const
- {
- return Length() == 0;
- }
- NS_HIDDEN_(void) SetIsVoid(PRBool val)
- {
- NS_StringSetIsVoid(*this, val);
- }
- NS_HIDDEN_(PRBool) IsVoid() const
- {
- return NS_StringGetIsVoid(*this);
- }
- NS_HIDDEN_(void) Assign(const self_type& aString)
- {
- NS_StringCopy(*this, aString);
- }
- NS_HIDDEN_(void) Assign(const char_type* aData, size_type aLength = PR_UINT32_MAX)
- {
- NS_StringSetData(*this, aData, aLength);
- }
- NS_HIDDEN_(void) Assign(char_type aChar)
- {
- NS_StringSetData(*this, &aChar, 1);
- }
- NS_HIDDEN_(void) AssignLiteral(const char *aStr);
- NS_HIDDEN_(self_type&) operator=(const self_type& aString) { Assign(aString); return *this; }
- NS_HIDDEN_(self_type&) operator=(const char_type* aPtr) { Assign(aPtr); return *this; }
- NS_HIDDEN_(self_type&) operator=(char_type aChar) { Assign(aChar); return *this; }
- NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, const char_type* data, size_type length = size_type(-1) )
- {
- NS_StringSetDataRange(*this, cutStart, cutLength, data, length);
- }
- NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, char_type c )
- {
- Replace(cutStart, cutLength, &c, 1);
- }
- NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, const self_type& readable )
- {
- const char_type* data;
- PRUint32 dataLen = NS_StringGetData(readable, &data);
- NS_StringSetDataRange(*this, cutStart, cutLength, data, dataLen);
- }
- NS_HIDDEN_(void) Append( char_type c ) { Replace(size_type(-1), 0, c); }
- NS_HIDDEN_(void) Append( const char_type* data, size_type length = size_type(-1) ) { Replace(size_type(-1), 0, data, length); }
- NS_HIDDEN_(void) Append( const self_type& readable ) { Replace(size_type(-1), 0, readable); }
- NS_HIDDEN_(void) AppendLiteral( const char *aASCIIStr );
- NS_HIDDEN_(self_type&) operator+=( char_type c ) { Append(c); return *this; }
- NS_HIDDEN_(self_type&) operator+=( const char_type* data ) { Append(data); return *this; }
- NS_HIDDEN_(self_type&) operator+=( const self_type& readable ) { Append(readable); return *this; }
- NS_HIDDEN_(void) Insert( char_type c, index_type pos ) { Replace(pos, 0, c); }
- NS_HIDDEN_(void) Insert( const char_type* data, index_type pos, size_type length = size_type(-1) ) { Replace(pos, 0, data, length); }
- NS_HIDDEN_(void) Insert( const self_type& readable, index_type pos ) { Replace(pos, 0, readable); }
- NS_HIDDEN_(void) Cut( index_type cutStart, size_type cutLength ) { Replace(cutStart, cutLength, nsnull, 0); }
- NS_HIDDEN_(void) Truncate() { SetLength(0); }
- /**
- * Remove all occurences of characters in aSet from the string.
- */
- NS_HIDDEN_(void) StripChars(const char *aSet);
- /**
- * Strip whitespace characters from the string.
- */
- NS_HIDDEN_(void) StripWhitespace() { StripChars(" \t\n\r"); }
- NS_HIDDEN_(void) Trim(const char *aSet, PRBool aLeading = PR_TRUE,
- PRBool aTrailing = PR_TRUE);
- /**
- * Compare strings of characters. Return 0 if the characters are equal,
- */
- typedef PRInt32 (*ComparatorFunc)(const char_type *a,
- const char_type *b,
- PRUint32 length);
- static NS_HIDDEN_(PRInt32) DefaultComparator(const char_type *a,
- const char_type *b,
- PRUint32 length);
- NS_HIDDEN_(PRInt32) Compare( const char_type *other,
- ComparatorFunc c = DefaultComparator ) const;
- NS_HIDDEN_(PRInt32) Compare( const self_type &other,
- ComparatorFunc c = DefaultComparator ) const;
- NS_HIDDEN_(PRBool) Equals( const char_type *other,
- ComparatorFunc c = DefaultComparator ) const;
- NS_HIDDEN_(PRBool) Equals( const self_type &other,
- ComparatorFunc c = DefaultComparator ) const;
- NS_HIDDEN_(PRBool) operator < (const self_type &other) const
- {
- return Compare(other) < 0;
- }
- NS_HIDDEN_(PRBool) operator < (const char_type *other) const
- {
- return Compare(other) < 0;
- }
- NS_HIDDEN_(PRBool) operator <= (const self_type &other) const
- {
- return Compare(other) <= 0;
- }
- NS_HIDDEN_(PRBool) operator <= (const char_type *other) const
- {
- return Compare(other) <= 0;
- }
- NS_HIDDEN_(PRBool) operator == (const self_type &other) const
- {
- return Equals(other);
- }
- NS_HIDDEN_(PRBool) operator == (const char_type *other) const
- {
- return Equals(other);
- }
- NS_HIDDEN_(PRBool) operator >= (const self_type &other) const
- {
- return Compare(other) >= 0;
- }
- NS_HIDDEN_(PRBool) operator >= (const char_type *other) const
- {
- return Compare(other) >= 0;
- }
- NS_HIDDEN_(PRBool) operator > (const self_type &other) const
- {
- return Compare(other) > 0;
- }
- NS_HIDDEN_(PRBool) operator > (const char_type *other) const
- {
- return Compare(other) > 0;
- }
- NS_HIDDEN_(PRBool) operator != (const self_type &other) const
- {
- return !Equals(other);
- }
- NS_HIDDEN_(PRBool) operator != (const char_type *other) const
- {
- return !Equals(other);
- }
- NS_HIDDEN_(PRBool) EqualsLiteral(const char *aASCIIString) const;
- /**
- * Case-insensitive match this string to a lowercase ASCII string.
- */
- NS_HIDDEN_(PRBool) LowerCaseEqualsLiteral(const char *aASCIIString) const;
- /**
- * Find the first occurrence of aStr in this string.
- *
- * @return the offset of aStr, or -1 if not found
- */
- NS_HIDDEN_(PRInt32) Find(const self_type& aStr,
- ComparatorFunc c = DefaultComparator) const
- { return Find(aStr, 0, c); }
- /**
- * Find the first occurrence of aStr in this string, beginning at aOffset.
- *
- * @return the offset of aStr, or -1 if not found
- */
- NS_HIDDEN_(PRInt32) Find(const self_type& aStr, PRUint32 aOffset,
- ComparatorFunc c = DefaultComparator) const;
- /**
- * Find an ASCII string within this string.
- *
- * @return the offset of aStr, or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) Find(const char *aStr, PRBool aIgnoreCase = PR_FALSE) const
- { return Find(aStr, 0, aIgnoreCase); }
- NS_HIDDEN_(PRInt32) Find(const char *aStr, PRUint32 aOffset, PRBool aIgnoreCase = PR_FALSE) const;
- /**
- * Find the last occurrence of aStr in this string.
- *
- * @return The offset of aStr from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFind(const self_type& aStr,
- ComparatorFunc c = DefaultComparator) const
- { return RFind(aStr, -1, c); }
- /**
- * Find the last occurrence of aStr in this string, beginning at aOffset.
- *
- * @param aOffset the offset from the beginning of the string to begin
- * searching. If aOffset < 0, search from end of this string.
- * @return The offset of aStr from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFind(const self_type& aStr, PRInt32 aOffset,
- ComparatorFunc c = DefaultComparator) const;
- /**
- * Find the last occurrence of an ASCII string within this string.
- *
- * @return The offset of aStr from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFind(const char *aStr, PRBool aIgnoreCase = PR_FALSE) const
- { return RFind(aStr, -1, aIgnoreCase); }
- /**
- * Find the last occurrence of an ASCII string beginning at aOffset.
- *
- * @param aOffset the offset from the beginning of the string to begin
- * searching. If aOffset < 0, search from end of this string.
- * @return The offset of aStr from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFind(const char *aStr, PRInt32 aOffset, PRBool aIgnoreCase) const;
- /**
- * Search for the offset of the first occurrence of a character in a
- * string.
- *
- * @param aOffset the offset from the beginning of the string to begin
- * searching
- * @return The offset of the character from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) FindChar(char_type aChar, PRUint32 aOffset = 0) const;
- /**
- * Search for the offset of the last occurrence of a character in a
- * string.
- *
- * @return The offset of the character from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFindChar(char_type aChar) const;
- /**
- * Append a string representation of a number.
- */
- NS_HIDDEN_(void) AppendInt(int aInt, PRInt32 aRadix = 10);
- #ifndef XPCOM_GLUE_AVOID_NSPR
- /**
- * Convert this string to an integer.
- *
- * @param aErrorCode pointer to contain result code.
- * @param aRadix must be 10 or 16
- */
- NS_HIDDEN_(PRInt32) ToInteger(nsresult* aErrorCode,
- PRUint32 aRadix = 10) const;
- #endif // XPCOM_GLUE_AVOID_NSPR
- protected:
- // Prevent people from allocating a nsAString directly.
- ~nsAString() {}
- };
- class nsACString
- {
- public:
- typedef char char_type;
- typedef nsACString self_type;
- typedef PRUint32 size_type;
- typedef PRUint32 index_type;
- /**
- * Returns the length, beginning, and end of a string in one operation.
- */
- NS_HIDDEN_(PRUint32) BeginReading(const char_type **begin,
- const char_type **end = nsnull) const;
- NS_HIDDEN_(const char_type*) BeginReading() const;
- NS_HIDDEN_(const char_type*) EndReading() const;
- NS_HIDDEN_(char_type) CharAt(PRUint32 aPos) const
- {
- NS_ASSERTION(aPos < Length(), "Out of bounds");
- return BeginReading()[aPos];
- }
- NS_HIDDEN_(char_type) operator [](PRUint32 aPos) const
- {
- return CharAt(aPos);
- }
- NS_HIDDEN_(char_type) First() const
- {
- return CharAt(0);
- }
- /**
- * Get the length, begin writing, and optionally set the length of a
- * string all in one operation.
- *
- * @param newSize Size the string to this length. Pass PR_UINT32_MAX
- * to leave the length unchanged.
- * @return The new length of the string, or 0 if resizing failed.
- */
- NS_HIDDEN_(PRUint32) BeginWriting(char_type **begin,
- char_type **end = nsnull,
- PRUint32 newSize = PR_UINT32_MAX);
- NS_HIDDEN_(char_type*) BeginWriting(PRUint32 aLen = PR_UINT32_MAX);
- NS_HIDDEN_(char_type*) EndWriting();
- NS_HIDDEN_(PRBool) SetLength(PRUint32 aLen);
- NS_HIDDEN_(size_type) Length() const
- {
- const char_type* data;
- return NS_CStringGetData(*this, &data);
- }
- NS_HIDDEN_(PRBool) IsEmpty() const
- {
- return Length() == 0;
- }
- NS_HIDDEN_(void) SetIsVoid(PRBool val)
- {
- NS_CStringSetIsVoid(*this, val);
- }
- NS_HIDDEN_(PRBool) IsVoid() const
- {
- return NS_CStringGetIsVoid(*this);
- }
- NS_HIDDEN_(void) Assign(const self_type& aString)
- {
- NS_CStringCopy(*this, aString);
- }
- NS_HIDDEN_(void) Assign(const char_type* aData, size_type aLength = PR_UINT32_MAX)
- {
- NS_CStringSetData(*this, aData, aLength);
- }
- NS_HIDDEN_(void) Assign(char_type aChar)
- {
- NS_CStringSetData(*this, &aChar, 1);
- }
- NS_HIDDEN_(void) AssignLiteral(const char_type *aData)
- {
- Assign(aData);
- }
- NS_HIDDEN_(self_type&) operator=(const self_type& aString) { Assign(aString); return *this; }
- NS_HIDDEN_(self_type&) operator=(const char_type* aPtr) { Assign(aPtr); return *this; }
- NS_HIDDEN_(self_type&) operator=(char_type aChar) { Assign(aChar); return *this; }
- NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, const char_type* data, size_type length = size_type(-1) )
- {
- NS_CStringSetDataRange(*this, cutStart, cutLength, data, length);
- }
- NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, char_type c )
- {
- Replace(cutStart, cutLength, &c, 1);
- }
- NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, const self_type& readable )
- {
- const char_type* data;
- PRUint32 dataLen = NS_CStringGetData(readable, &data);
- NS_CStringSetDataRange(*this, cutStart, cutLength, data, dataLen);
- }
- NS_HIDDEN_(void) Append( char_type c ) { Replace(size_type(-1), 0, c); }
- NS_HIDDEN_(void) Append( const char_type* data, size_type length = size_type(-1) ) { Replace(size_type(-1), 0, data, length); }
- NS_HIDDEN_(void) Append( const self_type& readable ) { Replace(size_type(-1), 0, readable); }
- NS_HIDDEN_(void) AppendLiteral( const char *aASCIIStr ) { Append(aASCIIStr); }
- NS_HIDDEN_(self_type&) operator+=( char_type c ) { Append(c); return *this; }
- NS_HIDDEN_(self_type&) operator+=( const char_type* data ) { Append(data); return *this; }
- NS_HIDDEN_(self_type&) operator+=( const self_type& readable ) { Append(readable); return *this; }
- NS_HIDDEN_(void) Insert( char_type c, index_type pos ) { Replace(pos, 0, c); }
- NS_HIDDEN_(void) Insert( const char_type* data, index_type pos, size_type length = size_type(-1) ) { Replace(pos, 0, data, length); }
- NS_HIDDEN_(void) Insert( const self_type& readable, index_type pos ) { Replace(pos, 0, readable); }
- NS_HIDDEN_(void) Cut( index_type cutStart, size_type cutLength ) { Replace(cutStart, cutLength, nsnull, 0); }
- NS_HIDDEN_(void) Truncate() { SetLength(0); }
- /**
- * Remove all occurences of characters in aSet from the string.
- */
- NS_HIDDEN_(void) StripChars(const char *aSet);
- /**
- * Strip whitespace characters from the string.
- */
- NS_HIDDEN_(void) StripWhitespace() { StripChars(" \t\r\n"); }
- NS_HIDDEN_(void) Trim(const char *aSet, PRBool aLeading = PR_TRUE,
- PRBool aTrailing = PR_TRUE);
- /**
- * Compare strings of characters. Return 0 if the characters are equal,
- */
- typedef PRInt32 (*ComparatorFunc)(const char_type *a,
- const char_type *b,
- PRUint32 length);
- static NS_HIDDEN_(PRInt32) DefaultComparator(const char_type *a,
- const char_type *b,
- PRUint32 length);
- NS_HIDDEN_(PRInt32) Compare( const char_type *other,
- ComparatorFunc c = DefaultComparator ) const;
- NS_HIDDEN_(PRInt32) Compare( const self_type &other,
- ComparatorFunc c = DefaultComparator ) const;
- NS_HIDDEN_(PRBool) Equals( const char_type *other,
- ComparatorFunc c = DefaultComparator ) const;
- NS_HIDDEN_(PRBool) Equals( const self_type &other,
- ComparatorFunc c = DefaultComparator ) const;
- NS_HIDDEN_(PRBool) operator < (const self_type &other) const
- {
- return Compare(other) < 0;
- }
- NS_HIDDEN_(PRBool) operator < (const char_type *other) const
- {
- return Compare(other) < 0;
- }
- NS_HIDDEN_(PRBool) operator <= (const self_type &other) const
- {
- return Compare(other) <= 0;
- }
- NS_HIDDEN_(PRBool) operator <= (const char_type *other) const
- {
- return Compare(other) <= 0;
- }
- NS_HIDDEN_(PRBool) operator == (const self_type &other) const
- {
- return Equals(other);
- }
- NS_HIDDEN_(PRBool) operator == (const char_type *other) const
- {
- return Equals(other);
- }
- NS_HIDDEN_(PRBool) operator >= (const self_type &other) const
- {
- return Compare(other) >= 0;
- }
- NS_HIDDEN_(PRBool) operator >= (const char_type *other) const
- {
- return Compare(other) >= 0;
- }
- NS_HIDDEN_(PRBool) operator > (const self_type &other) const
- {
- return Compare(other) > 0;
- }
- NS_HIDDEN_(PRBool) operator > (const char_type *other) const
- {
- return Compare(other) > 0;
- }
- NS_HIDDEN_(PRBool) operator != (const self_type &other) const
- {
- return !Equals(other);
- }
- NS_HIDDEN_(PRBool) operator != (const char_type *other) const
- {
- return !Equals(other);
- }
- NS_HIDDEN_(PRBool) EqualsLiteral( const char_type *other ) const
- {
- return Equals(other);
- }
- /**
- * Find the first occurrence of aStr in this string.
- *
- * @return the offset of aStr, or -1 if not found
- */
- NS_HIDDEN_(PRInt32) Find(const self_type& aStr,
- ComparatorFunc c = DefaultComparator) const
- { return Find(aStr, 0, c); }
- /**
- * Find the first occurrence of aStr in this string, beginning at aOffset.
- *
- * @return the offset of aStr, or -1 if not found
- */
- NS_HIDDEN_(PRInt32) Find(const self_type& aStr, PRUint32 aOffset,
- ComparatorFunc c = DefaultComparator) const;
- /**
- * Find the first occurrence of aStr in this string.
- *
- * @return the offset of aStr, or -1 if not found
- */
- NS_HIDDEN_(PRInt32) Find(const char_type *aStr,
- ComparatorFunc c = DefaultComparator) const;
- NS_HIDDEN_(PRInt32) Find(const char_type *aStr, PRUint32 aLen,
- ComparatorFunc c = DefaultComparator) const;
- /**
- * Find the last occurrence of aStr in this string.
- *
- * @return The offset of the character from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFind(const self_type& aStr,
- ComparatorFunc c = DefaultComparator) const
- { return RFind(aStr, -1, c); }
- /**
- * Find the last occurrence of aStr in this string, beginning at aOffset.
- *
- * @param aOffset the offset from the beginning of the string to begin
- * searching. If aOffset < 0, search from end of this string.
- * @return The offset of aStr from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFind(const self_type& aStr, PRInt32 aOffset,
- ComparatorFunc c = DefaultComparator) const;
- /**
- * Find the last occurrence of aStr in this string.
- *
- * @return The offset of aStr from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFind(const char_type *aStr,
- ComparatorFunc c = DefaultComparator) const;
- /**
- * Find the last occurrence of an ASCII string in this string,
- * beginning at aOffset.
- *
- * @param aLen is the length of aStr
- * @return The offset of aStr from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFind(const char_type *aStr, PRInt32 aLen,
- ComparatorFunc c = DefaultComparator) const;
- /**
- * Search for the offset of the first occurrence of a character in a
- * string.
- *
- * @param aOffset the offset from the beginning of the string to begin
- * searching
- * @return The offset of the character from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) FindChar(char_type aChar, PRUint32 aOffset = 0) const;
- /**
- * Search for the offset of the last occurrence of a character in a
- * string.
- *
- * @return The offset of the character from the beginning of the string,
- * or -1 if not found.
- */
- NS_HIDDEN_(PRInt32) RFindChar(char_type aChar) const;
- /**
- * Append a string representation of a number.
- */
- NS_HIDDEN_(void) AppendInt(int aInt, PRInt32 aRadix = 10);
- #ifndef XPCOM_GLUE_AVOID_NSPR
- /**
- * Convert this string to an integer.
- *
- * @param aErrorCode pointer to contain result code.
- * @param aRadix must be 10 or 16
- */
- NS_HIDDEN_(PRInt32) ToInteger(nsresult* aErrorCode,
- PRUint32 aRadix = 10) const;
- #endif // XPCOM_GLUE_AVOID_NSPR
- protected:
- // Prevent people from allocating a nsAString directly.
- ~nsACString() {}
- };
- /* ------------------------------------------------------------------------- */
- /**
- * Below we define nsStringContainer and nsCStringContainer. These classes
- * have unspecified structure. In most cases, your code should use
- * nsString/nsCString instead of these classes; if you prefer C-style
- * programming, then look no further.
- */
- class nsStringContainer : public nsAString,
- private nsStringContainer_base
- {
- };
- class nsCStringContainer : public nsACString,
- private nsStringContainer_base
- {
- };
- /**
- * The following classes are C++ helper classes that make the frozen string
- * API easier to use.
- */
- /**
- * Rename symbols to avoid conflicting with internal versions.
- */
- #define nsString nsString_external
- #define nsCString nsCString_external
- #define nsDependentString nsDependentString_external
- #define nsDependentCString nsDependentCString_external
- #define NS_ConvertASCIItoUTF16 NS_ConvertASCIItoUTF16_external
- #define NS_ConvertUTF8toUTF16 NS_ConvertUTF8toUTF16_external
- #define NS_ConvertUTF16toUTF8 NS_ConvertUTF16toUTF8_external
- #define NS_LossyConvertUTF16toASCII NS_LossyConvertUTF16toASCII_external
- #define nsGetterCopies nsGetterCopies_external
- #define nsCGetterCopies nsCGetterCopies_external
- #define nsDependentSubstring nsDependentSubstring_external
- #define nsDependentCSubstring nsDependentCSubstring_external
- /**
- * basic strings
- */
- class nsString : public nsStringContainer
- {
- public:
- typedef nsString self_type;
- typedef nsAString abstract_string_type;
- nsString()
- {
- NS_StringContainerInit(*this);
- }
- nsString(const self_type& aString)
- {
- NS_StringContainerInit(*this);
- NS_StringCopy(*this, aString);
- }
- explicit
- nsString(const abstract_string_type& aReadable)
- {
- NS_StringContainerInit(*this);
- NS_StringCopy(*this, aReadable);
- }
- explicit
- nsString(const char_type* aData, size_type aLength = PR_UINT32_MAX)
- {
- NS_StringContainerInit2(*this, aData, aLength, 0);
- }
-
- ~nsString()
- {
- NS_StringContainerFinish(*this);
- }
- const char_type* get() const
- {
- return BeginReading();
- }
- self_type& operator=(const self_type& aString) { Assign(aString); return *this; }
- self_type& operator=(const abstract_string_type& aReadable) { Assign(aReadable); return *this; }
- self_type& operator=(const char_type* aPtr) { Assign(aPtr); return *this; }
- self_type& operator=(char_type aChar) { Assign(aChar); return *this; }
- void Adopt(const char_type *aData, size_type aLength = PR_UINT32_MAX)
- {
- NS_StringContainerFinish(*this);
- NS_StringContainerInit2(*this, aData, aLength,
- NS_STRING_CONTAINER_INIT_ADOPT);
- }
- protected:
-
- nsString(const char_type* aData, size_type aLength, PRUint32 aFlags)
- {
- NS_StringContainerInit2(*this, aData, aLength, aFlags);
- }
- };
- class nsCString : public nsCStringContainer
- {
- public:
- typedef nsCString self_type;
- typedef nsACString abstract_string_type;
- nsCString()
- {
- NS_CStringContainerInit(*this);
- }
- nsCString(const self_type& aString)
- {
- NS_CStringContainerInit(*this);
- NS_CStringCopy(*this, aString);
- }
- explicit
- nsCString(const abstract_string_type& aReadable)
- {
- NS_CStringContainerInit(*this);
- NS_CStringCopy(*this, aReadable);
- }
- explicit
- nsCString(const char_type* aData, size_type aLength = PR_UINT32_MAX)
- {
- NS_CStringContainerInit(*this);
- NS_CStringSetData(*this, aData, aLength);
- }
-
- ~nsCString()
- {
- NS_CStringContainerFinish(*this);
- }
- const char_type* get() const
- {
- return BeginReading();
- }
-
- self_type& operator=(const self_type& aString) { Assign(aString); return *this; }
- self_type& operator=(const abstract_string_type& aReadable) { Assign(aReadable); return *this; }
- self_type& operator=(const char_type* aPtr) { Assign(aPtr); return *this; }
- self_type& operator=(char_type aChar) { Assign(aChar); return *this; }
- void Adopt(const char_type *aData, size_type aLength = PR_UINT32_MAX)
- {
- NS_CStringContainerFinish(*this);
- NS_CStringContainerInit2(*this, aData, aLength,
- NS_CSTRING_CONTAINER_INIT_ADOPT);
- }
- protected:
-
- nsCString(const char_type* aData, size_type aLength, PRUint32 aFlags)
- {
- NS_CStringContainerInit2(*this, aData, aLength, aFlags);
- }
- };
- /**
- * dependent strings
- */
- class nsDependentString : public nsString
- {
- public:
- typedef nsDependentString self_type;
- nsDependentString() {}
- explicit
- nsDependentString(const char_type* aData, size_type aLength = PR_UINT32_MAX)
- : nsString(aData, aLength, NS_CSTRING_CONTAINER_INIT_DEPEND)
- {}
- void Rebind(const char_type* aData, size_type aLength = PR_UINT32_MAX)
- {
- NS_StringContainerFinish(*this);
- NS_StringContainerInit2(*this, aData, aLength,
- NS_STRING_CONTAINER_INIT_DEPEND);
- }
-
- private:
- self_type& operator=(const self_type& aString); // NOT IMPLEMENTED
- };
- class nsDependentCString : public nsCString
- {
- public:
- typedef nsDependentCString self_type;
- nsDependentCString() {}
- explicit
- nsDependentCString(const char_type* aData, size_type aLength = PR_UINT32_MAX)
- : nsCString(aData, aLength, NS_CSTRING_CONTAINER_INIT_DEPEND)
- {}
- void Rebind(const char_type* aData, size_type aLength = PR_UINT32_MAX)
- {
- NS_CStringContainerFinish(*this);
- NS_CStringContainerInit2(*this, aData, aLength,
- NS_CSTRING_CONTAINER_INIT_DEPEND);
- }
-
- private:
- self_type& operator=(const self_type& aString); // NOT IMPLEMENTED
- };
- /**
- * conversion classes
- */
- inline void
- CopyUTF16toUTF8(const nsAString& aSource, nsACString& aDest)
- {
- NS_UTF16ToCString(aSource, NS_CSTRING_ENCODING_UTF8, aDest);
- }
- inline void
- CopyUTF8toUTF16(const nsACString& aSource, nsAString& aDest)
- {
- NS_CStringToUTF16(aSource, NS_CSTRING_ENCODING_UTF8, aDest);
- }
- inline void
- LossyCopyUTF16toASCII(const nsAString& aSource, nsACString& aDest)
- {
- NS_UTF16ToCString(aSource, NS_CSTRING_ENCODING_ASCII, aDest);
- }
- inline void
- CopyASCIItoUTF16(const nsACString& aSource, nsAString& aDest)
- {
- NS_CStringToUTF16(aSource, NS_CSTRING_ENCODING_ASCII, aDest);
- }
- NS_COM_GLUE char*
- ToNewUTF8String(const nsAString& aSource);
- class NS_ConvertASCIItoUTF16 : public nsString
- {
- public:
- typedef NS_ConvertASCIItoUTF16 self_type;
- explicit
- NS_ConvertASCIItoUTF16(const nsACString& aStr)
- {
- NS_CStringToUTF16(aStr, NS_CSTRING_ENCODING_ASCII, *this);
- }
- explicit
- NS_ConvertASCIItoUTF16(const char* aData, PRUint32 aLength = PR_UINT32_MAX)
- {
- NS_CStringToUTF16(nsDependentCString(aData, aLength),
- NS_CSTRING_ENCODING_ASCII, *this);
- }
- private:
- self_type& operator=(const self_type& aString); // NOT IMPLEMENTED
- };
- class NS_ConvertUTF8toUTF16 : public nsString
- {
- public:
- typedef NS_ConvertUTF8toUTF16 self_type;
- explicit
- NS_ConvertUTF8toUTF16(const nsACString& aStr)
- {
- NS_CStringToUTF16(aStr, NS_CSTRING_ENCODING_UTF8, *this);
- }
- explicit
- NS_ConvertUTF8toUTF16(const char* aData, PRUint32 aLength = PR_UINT32_MAX)
- {
- NS_CStringToUTF16(nsDependentCString(aData, aLength),
- NS_CSTRING_ENCODING_UTF8, *this);
- }
- private:
- self_type& operator=(const self_type& aString); // NOT IMPLEMENTED
- };
- class NS_ConvertUTF16toUTF8 : public nsCString
- {
- public:
- typedef NS_ConvertUTF16toUTF8 self_type;
- explicit
- NS_ConvertUTF16toUTF8(const nsAString& aStr)
- {
- NS_UTF16ToCString(aStr, NS_CSTRING_ENCODING_UTF8, *this);
- }
- explicit
- NS_ConvertUTF16toUTF8(const PRUnichar* aData, PRUint32 aLength = PR_UINT32_MAX)
- {
- NS_UTF16ToCString(nsDependentString(aData, aLength),
- NS_CSTRING_ENCODING_UTF8, *this);
- }
- private:
- self_type& operator=(const self_type& aString); // NOT IMPLEMENTED
- };
- class NS_LossyConvertUTF16toASCII : public nsCString
- {
- public:
- typedef NS_LossyConvertUTF16toASCII self_type;
- explicit
- NS_LossyConvertUTF16toASCII(const nsAString& aStr)
- {
- NS_UTF16ToCString(aStr, NS_CSTRING_ENCODING_ASCII, *this);
- }
- explicit
- NS_LossyConvertUTF16toASCII(const PRUnichar* aData, PRUint32 aLength = PR_UINT32_MAX)
- {
- NS_UTF16ToCString(nsDependentString(aData, aLength),
- NS_CSTRING_ENCODING_ASCII, *this);
- }
- private:
- self_type& operator=(const self_type& aString); // NOT IMPLEMENTED
- };
- /**
- * literal strings
- *
- * NOTE: HAVE_CPP_2BYTE_WCHAR_T may be automatically defined for some platforms
- * in nscore.h. On other platforms, it may be defined in xpcom-config.h.
- * Under GCC, this define should only be set if compiling with -fshort-wchar.
- */
- #ifdef HAVE_CPP_2BYTE_WCHAR_T
- PR_STATIC_ASSERT(sizeof(wchar_t) == 2);
- #define NS_LL(s) L##s
- #define NS_MULTILINE_LITERAL_STRING(s) nsDependentString(reinterpret_cast<const nsAString::char_type*>(s), PRUint32((sizeof(s)/sizeof(wchar_t))-1))
- #define NS_MULTILINE_LITERAL_STRING_INIT(n,s) n(reinterpret_cast<const nsAString::char_type*>(s), PRUint32((sizeof(s)/sizeof(wchar_t))-1))
- #define NS_NAMED_MULTILINE_LITERAL_STRING(n,s) const nsDependentString n(reinterpret_cast<const nsAString::char_type*>(s), PRUint32((sizeof(s)/sizeof(wchar_t))-1))
- typedef nsDependentString nsLiteralString;
- #else
- #define NS_LL(s) s
- #define NS_MULTILINE_LITERAL_STRING(s) NS_ConvertASCIItoUTF16(s, PRUint32(sizeof(s)-1))
- #define NS_MULTILINE_LITERAL_STRING_INIT(n,s) n(s, PRUint32(sizeof(s)-1))
- #define NS_NAMED_MULTILINE_LITERAL_STRING(n,s) const NS_ConvertASCIItoUTF16 n(s, PRUint32(sizeof(s)-1))
- typedef NS_ConvertASCIItoUTF16 nsLiteralString;
- #endif
- /* Check that PRUnichar is unsigned */
- PR_STATIC_ASSERT(PRUnichar(-1) > PRUnichar(0));
- /*
- * Macro arguments used in concatenation or stringification won't be expanded.
- * Therefore, in order for |NS_L(FOO)| to work as expected (which is to expand
- * |FOO| before doing whatever |NS_L| needs to do to it) a helper macro needs
- * to be inserted in between to allow the macro argument to expand.
- * See "3.10.6 Separate Expansion of Macro Arguments" of the CPP manual for a
- * more accurate and precise explanation.
- */
- #define NS_L(s) NS_LL(s)
- #define NS_LITERAL_STRING(s) static_cast<const nsString&>(NS_MULTILINE_LITERAL_STRING(NS_LL(s)))
- #define NS_LITERAL_STRING_INIT(n,s) NS_MULTILINE_LITERAL_STRING_INIT(n, NS_LL(s))
- #define NS_NAMED_LITERAL_STRING(n,s) NS_NAMED_MULTILINE_LITERAL_STRING(n, NS_LL(s))
- #define NS_LITERAL_CSTRING(s) static_cast<const nsDependentCString&>(nsDependentCString(s, PRUint32(sizeof(s)-1)))
- #define NS_LITERAL_CSTRING_INIT(n,s) n(s, PRUint32(sizeof(s)-1))
- #define NS_NAMED_LITERAL_CSTRING(n,s) const nsDependentCString n(s, PRUint32(sizeof(s)-1))
- typedef nsDependentCString nsLiteralCString;
- /**
- * getter_Copies support
- *
- * NS_IMETHOD GetBlah(PRUnichar**);
- *
- * void some_function()
- * {
- * nsString blah;
- * GetBlah(getter_Copies(blah));
- * // ...
- * }
- */
- class nsGetterCopies
- {
- public:
- typedef PRUnichar char_type;
- nsGetterCopies(nsString& aStr)
- : mString(aStr), mData(nsnull)
- {}
- ~nsGetterCopies()
- {
- mString.Adopt(mData);
- }
- operator char_type**()
- {
- return &mData;
- }
- private:
- nsString& mString;
- char_type* mData;
- };
- inline nsGetterCopies
- getter_Copies(nsString& aString)
- {
- return nsGetterCopies(aString);
- }
- class nsCGetterCopies
- {
- public:
- typedef char char_type;
- nsCGetterCopies(nsCString& aStr)
- : mString(aStr), mData(nsnull)
- {}
- ~nsCGetterCopies()
- {
- mString.Adopt(mData);
- }
- operator char_type**()
- {
- return &mData;
- }
- private:
- nsCString& mString;
- char_type* mData;
- };
- inline nsCGetterCopies
- getter_Copies(nsCString& aString)
- {
- return nsCGetterCopies(aString);
- }
- /**
- * substrings
- */
- class NS_COM_GLUE nsDependentSubstring : public nsStringContainer
- {
- public:
- typedef nsDependentSubstring self_type;
- typedef nsAString abstract_string_type;
- ~nsDependentSubstring()
- {
- NS_StringContainerFinish(*this);
- }
- nsDependentSubstring()
- {
- NS_StringContainerInit(*this);
- }
- nsDependentSubstring(const char_type *aStart, PRUint32 aLength)
- {
- NS_StringContainerInit2(*this, aStart, aLength,
- NS_STRING_CONTAINER_INIT_DEPEND |
- NS_STRING_CONTAINER_INIT_SUBSTRING);
- }
- nsDependentSubstring(const abstract_string_type& aStr,
- PRUint32 aStartPos);
- nsDependentSubstring(const abstract_string_type& aStr,
- PRUint32 aStartPos, PRUint32 aLength);
- void Rebind(const char_type *aStart, PRUint32 aLength)
- {
- NS_StringContainerFinish(*this);
- NS_StringContainerInit2(*this, aStart, aLength,
- NS_STRING_CONTAINER_INIT_DEPEND |
- NS_STRING_CONTAINER_INIT_SUBSTRING);
- }
- private:
- self_type& operator=(const self_type& aString); // NOT IMPLEMENTED
- };
- class NS_COM_GLUE nsDependentCSubstring : public nsCStringContainer
- {
- public:
- typedef nsDependentCSubstring self_type;
- typedef nsACString abstract_string_type;
- ~nsDependentCSubstring()
- {
- NS_CStringContainerFinish(*this);
- }
- nsDependentCSubstring()
- {
- NS_CStringContainerInit(*this);
- }
- nsDependentCSubstring(const char_type *aStart, PRUint32 aLength)
- {
- NS_CStringContainerInit2(*this, aStart, aLength,
- NS_CSTRING_CONTAINER_INIT_DEPEND |
- NS_CSTRING_CONTAINER_INIT_SUBSTRING);
- }
- nsDependentCSubstring(const abstract_string_type& aStr,
- PRUint32 aStartPos);
- nsDependentCSubstring(const abstract_string_type& aStr,
- PRUint32 aStartPos, PRUint32 aLength);
- void Rebind(const char_type *aStart, PRUint32 aLength)
- {
- NS_CStringContainerFinish(*this);
- NS_CStringContainerInit2(*this, aStart, aLength,
- NS_CSTRING_CONTAINER_INIT_DEPEND |
- NS_CSTRING_CONTAINER_INIT_SUBSTRING);
- }
- private:
- self_type& operator=(const self_type& aString); // NOT IMPLEMENTED
- };
- /**
- * Various nsDependentC?Substring constructor functions
- */
- // PRUnichar
- inline const nsDependentSubstring
- Substring( const nsAString& str, PRUint32 startPos )
- {
- return nsDependentSubstring(str, startPos);
- }
- inline const nsDependentSubstring
- Substring( const nsAString& str, PRUint32 startPos, PRUint32 length )
- {
- return nsDependentSubstring(str, startPos, length);
- }
- inline const nsDependentSubstring
- Substring( const PRUnichar* start, const PRUnichar* end )
- {
- return nsDependentSubstring(start, end - start);
- }
- inline const nsDependentSubstring
- Substring( const PRUnichar* start, PRUint32 length )
- {
- return nsDependentSubstring(start, length);
- }
- inline const nsDependentSubstring
- StringHead( const nsAString& str, PRUint32 count )
- {
- return nsDependentSubstring(str, 0, count);
- }
- inline const nsDependentSubstring
- StringTail( const nsAString& str, PRUint32 count )
- {
- return nsDependentSubstring(str, str.Length() - count, count);
- }
- // char
- inline const nsDependentCSubstring
- Substring( const nsACString& str, PRUint32 startPos )
- {
- return nsDependentCSubstring(str, startPos);
- }
- inline const nsDependentCSubstring
- Substring( const nsACString& str, PRUint32 startPos, PRUint32 length )
- {
- return nsDependentCSubstring(str, startPos, length);
- }
- inline
- const nsDependentCSubstring
- Substring( const char* start, const char* end )
- {
- return nsDependentCSubstring(start, end - start);
- }
- inline
- const nsDependentCSubstring
- Substring( const char* start, PRUint32 length )
- {
- return nsDependentCSubstring(start, length);
- }
- inline const nsDependentCSubstring
- StringHead( const nsACString& str, PRUint32 count )
- {
- return nsDependentCSubstring(str, 0, count);
- }
- inline const nsDependentCSubstring
- StringTail( const nsACString& str, PRUint32 count )
- {
- return nsDependentCSubstring(str, str.Length() - count, count);
- }
- inline PRBool
- StringBeginsWith(const nsAString& aSource, const nsAString& aSubstring,
- nsAString::ComparatorFunc aComparator = nsAString::DefaultComparator)
- {
- return aSubstring.Length() <= aSource.Length() &&
- StringHead(aSource, aSubstring.Length()).Equals(aSubstring, aComparator);
- }
- inline PRBool
- StringEndsWith(const nsAString& aSource, const nsAString& aSubstring,
- nsAString::ComparatorFunc aComparator = nsAString::DefaultComparator)
- {
- return aSubstring.Length() <= aSource.Length() &&
- StringTail(aSource, aSubstring.Length()).Equals(aSubstring, aComparator);
- }
- inline PRBool
- StringBeginsWith(const nsACString& aSource, const nsACString& aSubstring,
- nsACString::ComparatorFunc aComparator = nsACString::DefaultComparator)
- {
- return aSubstring.Length() <= aSource.Length() &&
- StringHead(aSource, aSubstring.Length()).Equals(aSubstring, aComparator);
- }
- inline PRBool
- StringEndsWith(const nsACString& aSource, const nsACString& aSubstring,
- nsACString::ComparatorFunc aComparator = nsACString::DefaultComparator)
- {
- return aSubstring.Length() <= aSource.Length() &&
- StringTail(aSource, aSubstring.Length()).Equals(aSubstring, aComparator);
- }
- /**
- * Trim whitespace from the beginning and end of a string; then compress
- * remaining runs of whitespace characters to a single space.
- */
- NS_HIDDEN_(void)
- CompressWhitespace(nsAString& aString);
- #define EmptyCString() nsCString()
- #define EmptyString() nsString()
- /**
- * Convert an ASCII string to all upper/lowercase (a-z,A-Z only). As a bonus,
- * returns the string length.
- */
- NS_HIDDEN_(PRUint32)
- ToLowerCase(nsACString& aStr);
- NS_HIDDEN_(PRUint32)
- ToUpperCase(nsACString& aStr);
- NS_HIDDEN_(PRUint32)
- ToLowerCase(const nsACString& aSrc, nsACString& aDest);
- NS_HIDDEN_(PRUint32)
- ToUpperCase(const nsACString& aSrc, nsACString& aDest);
- /**
- * Comparison function for use with nsACString::Equals
- */
- NS_HIDDEN_(PRInt32)
- CaseInsensitiveCompare(const char *a, const char *b,
- PRUint32 length);
- /**
- * The following declarations are *deprecated*, and are included here only
- * to make porting from existing code that doesn't use the frozen string API
- * easier. They may disappear in the future.
- */
- inline char*
- ToNewCString(const nsACString& aStr)
- {
- return NS_CStringCloneData(aStr);
- }
- inline PRUnichar*
- ToNewUnicode(const nsAString& aStr)
- {
- return NS_StringCloneData(aStr);
- }
- typedef nsString PromiseFlatString;
- typedef nsCString PromiseFlatCString;
- typedef nsCString nsCAutoString;
- typedef nsString nsAutoString;
- #endif // nsStringAPI_h__