are not supported, nor all methods which use them).
These standard functions are not documented in this manual so please see the STL documentation.
The behaviour of all these functions is identical to the behaviour described
-there.
+there (except that wxString is sensitive to null character).
+
+You may notice that wxString sometimes has many functions which do the same
+thing like, for example, \helpref{Length()}{wxstringlength},
+\helpref{Len()}{wxstringlen} and {\tt length()} which all return the string
+length. In all cases of such duplication the {\tt std::string}-compatible
+method ({\tt length()} in this case, always the lowercase version) should be
+used as it will ensure smoother transition to {\tt std::string} when wxWidgets
+starts using it instead of wxString.
+
+Also please note that in this manual \texttt{char} is sometimes used instead of
+\texttt{wxChar} because it hasn't been fully updated yet. Please substitute as
+necessary and refer to the sources in case of a doubt.
+
\wxheading{Derived from}
\latexignore{\rtfignore{\wxheading{Function groups}}}
-\membersection{Constructors and assignment operators}
-A strign may be constructed either from a C string, (some number of copies of)
+\membersection{Constructors and assignment operators}\label{constructorsinwxstring}
+
+A string may be constructed either from a C string, (some number of copies of)
a single character or a wide (UNICODE) string. For all constructors (except the
default which creates an empty string) there is also a corresponding assignment
operator.
\helpref{operator $=$}{wxstringoperatorassign}\\
\helpref{\destruct{wxString}}{wxstringdestruct}
-\membersection{String length}
+
+\membersection{String length}\label{lengthfunctionsinwxstring}
These functions return the string length and check whether the string is empty
or empty it.
\helpref{Empty}{wxstringempty}\\
\helpref{Clear}{wxstringclear}
-\membersection{Character access}
+
+\membersection{Character access}\label{characteraccessinwxstring}
Many functions in this section take a character index in the string. As with C
strings and/or arrays, the indices start from $0$, so the first character of a
string is string[$0$]. Attempt to access a character beyond the end of the
-string (which may be even $0$ if the string is empty) will provocate an assert
+string (which may be even $0$ if the string is empty) will provoke an assert
failure in \helpref{debug build}{debuggingoverview}, but no checks are done in
release builds.
\helpref{Last}{wxstringlast}\\
\helpref{operator []}{wxstringoperatorbracket}\\
\helpref{c\_str}{wxstringcstr}\\
+\helpref{mb\_str}{wxstringmbstr}\\
+\helpref{wc\_str}{wxstringwcstr}\\
+\helpref{fn\_str}{wxstringfnstr}\\
\helpref{operator const char*}{wxstringoperatorconstcharpt}
-\membersection{Concatenation}
+
+\membersection{Concatenation}\label{concatenationinwxstring}
Anything may be concatenated (appended to) with a string. However, you can't
append something to a C string (including literal constants), so to do this it
\helpref{Append}{wxstringappend}\\
\helpref{Prepend}{wxstringprepend}
-\membersection{Comparison}
+
+\membersection{Comparison}\label{comparisoninwxstring}
The default comparison function \helpref{Cmp}{wxstringcmp} is case-sensitive and
so is the default version of \helpref{IsSameAs}{wxstringissameas}. For case
insensitive comparisons you should use \helpref{CmpNoCase}{wxstringcmpnocase} or
give a second parameter to IsSameAs. This last function is may be more
convenient if only equality of the strings matters because it returns a boolean
-true value if the strings are the same and not 0 (which is usually FALSE in C)
+true value if the strings are the same and not 0 (which is usually false in C)
as {\tt Cmp()} does.
\helpref{Matches}{wxstringmatches} is a poor man's regular expression matcher:
\helpref{StartsWith}{wxstringstartswith} is helpful when parsing a line of
text which should start with some predefined prefix and is more efficient than
-doing direct string comparaison as you would also have to precalculate the
+doing direct string comparison as you would also have to precalculate the
length of the prefix then.
\helpref{Cmp}{wxstringcmp}\\
\helpref{CmpNoCase}{wxstringcmpnocase}\\
\helpref{IsSameAs}{wxstringissameas}\\
\helpref{Matches}{wxstringmatches}\\
-\helpref{StartsWith}{wxstringstartswith}
+\helpref{StartsWith}{wxstringstartswith}\\
+\helpref{EndsWith}{wxstringendswith}
-\membersection{Substring extraction}
+
+\membersection{Substring extraction}\label{substringextractioninwxstring}
These functions allow to extract substring from this string. All of them don't
modify the original string and return a new string containing the extracted
\helpref{BeforeLast}{wxstringbeforelast}\\
\helpref{AfterFirst}{wxstringafterfirst}\\
\helpref{AfterLast}{wxstringafterlast}\\
-\helpref{StartsWith}{wxstringstartswith}
+\helpref{StartsWith}{wxstringstartswith}\\
+\helpref{EndsWith}{wxstringendswith}
+
-\membersection{Case conversion}
+
+\membersection{Case conversion}\label{caseconversioninwxstring}
The MakeXXX() variants modify the string in place, while the other functions
-return a new string which containts the original text converted to the upper or
+return a new string which contains the original text converted to the upper or
lower case and leave the original string unchanged.
\helpref{MakeUpper}{wxstringmakeupper}\\
\helpref{MakeLower}{wxstringmakelower}\\
\helpref{Lower}{wxstringlower}
-\membersection{Searching and replacing}
+
+\membersection{Searching and replacing}\label{searchingandreplacinginwxstring}
These functions replace the standard {\it strchr()} and {\it strstr()}
functions.
\helpref{Find}{wxstringfind}\\
\helpref{Replace}{wxstringreplace}
-\membersection{Conversion to numbers}
+
+\membersection{Conversion to numbers}\label{conversiontonumbersinwxstring}
The string provides functions for conversion to signed and unsigned integer and
floating point numbers. All three functions take a pointer to the variable to
-put the numeric value in and return TRUE if the {\bf entire} string could be
+put the numeric value in and return true if the {\bf entire} string could be
converted to a number.
\helpref{ToLong}{wxstringtolong}\\
\helpref{ToULong}{wxstringtoulong}\\
\helpref{ToDouble}{wxstringtodouble}
-\membersection{Writing values into the string}
+
+\membersection{Writing values into the string}\label{writingintostringinwxstring}
Both formatted versions (\helpref{Printf}{wxstringprintf}) and stream-like
insertion operators exist (for basic types only). Additionally, the
\helpref{PrintfV}{wxstringprintfv}\\
\helpref{operator \cinsert}{wxstringoperatorout}
-\membersection{Memory management}
-These are "advanced" functions and they will be needed quite rarily.
+\membersection{Memory management}\label{memoryinwxstring}
+
+These are "advanced" functions and they will be needed quite rarely.
\helpref{Alloc}{wxstringalloc} and \helpref{Shrink}{wxstringshrink} are only
interesting for optimization purposes.
\helpref{GetWriteBuf}{wxstringgetwritebuf} may be very useful when working with
\helpref{GetWriteBuf}{wxstringgetwritebuf}\\
\helpref{UngetWriteBuf}{wxstringungetwritebuf}
-\membersection{Miscellaneous}
+
+\membersection{Miscellaneous}\label{miscellaneousinwxstring}
Other string functions.
\helpref{Pad}{wxstringpad}\\
\helpref{Truncate}{wxstringtruncate}
-\membersection{wxWindows 1.xx compatibility functions}
-These functions are deprecated, please consider using new wxWindows 2.0
+\membersection{wxWidgets 1.xx compatibility functions}\label{backwardcompatibilityinwxstring}
+
+These functions are deprecated, please consider using new wxWidgets 2.0
functions instead of them (or, even better, std::string compatible variants).
\helpref{SubString}{wxstringsubstring}\\
\helpref{IsNumber}{wxstringisnumber}\\
\helpref{IsWord}{wxstringisword}
+
\membersection{std::string compatibility functions}\label{wxstringat}
The supported functions are only listed here, please see any STL reference for
}}
+
\membersection{wxString::wxString}\label{wxstringconstruct}
\func{}{wxString}{\void}
-Default constructor.
+Default constructor. Initializes the string to {\tt ""} (empty string).
\func{}{wxString}{\param{const wxString\&}{ x}}
\func{}{wxString}{\param{const char*}{ psz}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}}
Takes first {\it nLength} characters from the C string {\it psz}.
-The default value of wxSTRING\_MAXLEN means to take all the string.
+The default value of {\tt wxSTRING\_MAXLEN} means to take all the string.
Note that this constructor may be used even if {\it psz} points to a buffer
with binary data (i.e. containing {\tt NUL} characters) as long as you provide
\func{}{wxString}{\param{const unsigned char*}{ psz}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}}
For compilers using unsigned char: takes first {\it nLength} characters from the C string {\it psz}.
-The default value of wxSTRING\_MAXLEN means take all the string.
+The default value of {\tt wxSTRING\_MAXLEN} means take all the string.
+
+{\bf Note:} In Unicode build, all of the above constructors take
+{\tt wchar\_t} arguments instead of {\tt char}.
+
+\wxheading{Constructors with conversion}
+
+The following constructors allow you to construct wxString from wide string
+in ANSI build or from C string in Unicode build.
-\func{}{wxString}{\param{const wchar\_t*}{ psz}}
+\func{}{wxString}{\param{const wchar\_t*}{ psz}, \param{wxMBConv\&}{ conv}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}}
+
+Initializes the string from first \arg{nLength} characters of wide string.
+The default value of {\tt wxSTRING\_MAXLEN} means take all the string.
+In ANSI build, \arg{conv}'s
+\helpref{WC2MB}{wxmbconvwc2mb} method is called to
+convert \arg{psz} to wide string. It is ignored in Unicode build.
+
+\func{}{wxString}{\param{const char*}{ psz}, \param{wxMBConv\&}{ conv}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}}
+
+Initializes the string from first \arg{nLength} characters of C string.
+The default value of {\tt wxSTRING\_MAXLEN} means take all the string.
+In Unicode build, \arg{conv}'s
+\helpref{MB2WC}{wxmbconvmb2wc} method is called to
+convert \arg{psz} to wide string. It is ignored in ANSI build.
+
+\wxheading{See also}
+
+\helpref{wxMBConv classes}{mbconvclasses}, \helpref{mb\_str}{wxstringmbstr},
+\helpref{wc\_str}{wxstringwcstr}
-Constructs a string from the wide (UNICODE) string.
\membersection{wxString::\destruct{wxString}}\label{wxstringdestruct}
String destructor. Note that this is not virtual, so wxString must not be inherited from.
+
\membersection{wxString::Alloc}\label{wxstringalloc}
\func{void}{Alloc}{\param{size\_t}{ nLen}}
\end{verbatim}
-because it will avoid the need of reallocating string memory many times (in case
+because it will avoid the need to reallocate string memory many times (in case
of long strings). Note that it does not set the maximal length of a string - it
will still expand if more than {\it nLen} characters are stored in it. Also, it
does not truncate the existing string (use
\helpref{Truncate()}{wxstringtruncate} for this) even if its current length is
greater than {\it nLen}
+
\membersection{wxString::Append}\label{wxstringappend}
\func{wxString\&}{Append}{\param{const char*}{ psz}}
Concatenates character {\it ch} to this string, {\it count} times, returning a reference
to it.
+
\membersection{wxString::AfterFirst}\label{wxstringafterfirst}
\constfunc{wxString}{AfterFirst}{\param{char}{ ch}}
Gets all the characters after the first occurrence of {\it ch}.
Returns the empty string if {\it ch} is not found.
+
\membersection{wxString::AfterLast}\label{wxstringafterlast}
\constfunc{wxString}{AfterLast}{\param{char}{ ch}}
Gets all the characters after the last occurrence of {\it ch}.
Returns the whole string if {\it ch} is not found.
+
\membersection{wxString::BeforeFirst}\label{wxstringbeforefirst}
\constfunc{wxString}{BeforeFirst}{\param{char}{ ch}}
Gets all characters before the first occurrence of {\it ch}.
Returns the whole string if {\it ch} is not found.
+
\membersection{wxString::BeforeLast}\label{wxstringbeforelast}
\constfunc{wxString}{BeforeLast}{\param{char}{ ch}}
Gets all characters before the last occurrence of {\it ch}.
Returns the empty string if {\it ch} is not found.
+
\membersection{wxString::c\_str}\label{wxstringcstr}
-\constfunc{const char *}{c\_str}{\void}
+\constfunc{const wxChar *}{c\_str}{\void}
+
+Returns a pointer to the string data ({\tt const char*} in ANSI build,
+{\tt const wchar\_t*} in Unicode build).
+
+\wxheading{See also}
+
+\helpref{mb\_str}{wxstringmbstr}, \helpref{wc\_str}{wxstringwcstr},
+\helpref{fn\_str}{wxstringfnstr}
-Returns a pointer to the string data.
\membersection{wxString::Clear}\label{wxstringclear}
See also: \helpref{Empty}{wxstringempty}
+
\membersection{wxString::Cmp}\label{wxstringcmp}
+\constfunc{int}{Cmp}{\param{const wxString\&}{ s}}
+
\constfunc{int}{Cmp}{\param{const char*}{ psz}}
Case-sensitive comparison.
See also \helpref{CmpNoCase}{wxstringcmpnocase}, \helpref{IsSameAs}{wxstringissameas}.
+
\membersection{wxString::CmpNoCase}\label{wxstringcmpnocase}
+\constfunc{int}{CmpNoCase}{\param{const wxString\&}{ s}}
+
\constfunc{int}{CmpNoCase}{\param{const char*}{ psz}}
Case-insensitive comparison.
See also \helpref{Cmp}{wxstringcmp}, \helpref{IsSameAs}{wxstringissameas}.
+
\membersection{wxString::CompareTo}\label{wxstringcompareto}
\begin{verbatim}
Case-sensitive comparison. Returns 0 if equal, 1 if greater or -1 if less.
+
\membersection{wxString::Contains}\label{wxstringcontains}
\constfunc{bool}{Contains}{\param{const wxString\&}{ str}}
-Returns 1 if target appears anyhere in wxString; else 0.
+Returns 1 if target appears anywhere in wxString; else 0.
+
\membersection{wxString::Empty}\label{wxstringempty}
See also: \helpref{Clear()}{wxstringclear}.
+
\membersection{wxString::Find}\label{wxstringfind}
-\constfunc{int}{Find}{\param{char}{ ch}, \param{bool}{ fromEnd = FALSE}}
+\constfunc{int}{Find}{\param{char}{ ch}, \param{bool}{ fromEnd = false}}
Searches for the given character. Returns the starting index, or -1 if not found.
Searches for the given string. Returns the starting index, or -1 if not found.
+
\membersection{wxString::First}\label{wxstringfirst}
-\func{size\_t}{First}{\param{char}{ c}}
+\func{int}{First}{\param{char}{ c}}
+
+\constfunc{int}{First}{\param{const char*}{ psz}}
+
+\constfunc{int}{First}{\param{const wxString\&}{ str}}
+
+Same as \helpref{Find}{wxstringfind}.
-\constfunc{size\_t}{First}{\param{const char*}{ psz}}
-\constfunc{size\_t}{First}{\param{const wxString\&}{ str}}
+\membersection{wxString::fn\_str}\label{wxstringfnstr}
-\constfunc{size\_t}{First}{\param{const char}{ ch}}
+\constfunc{const wchar\_t*}{fn\_str}{\void}
+
+\constfunc{const char*}{fn\_str}{\void}
+
+\constfunc{const wxCharBuffer}{fn\_str}{\void}
+
+Returns string representation suitable for passing to OS' functions for
+file handling. In ANSI build, this is same as \helpref{c\_str}{wxstringcstr}.
+In Unicode build, returned value can be either wide character string
+or C string in charset matching the {\tt wxConvFileName} object, depending on
+the OS.
+
+\wxheading{See also}
+
+\helpref{wxMBConv}{wxmbconv},
+\helpref{wc\_str}{wxstringwcstr}, \helpref{mb\_str}{wxstringwcstr}
-Returns the first occurrence of the item.
\membersection{wxString::Format}\label{wxstringformat}
\helpref{FormatV}{wxstringformatv}, \helpref{Printf}{wxstringprintf}
+
\membersection{wxString::FormatV}\label{wxstringformatv}
-\func{static wxString}{Format}{\param{const wxChar }{*format}, \param{va\_list }{argptr}}
+\func{static wxString}{FormatV}{\param{const wxChar }{*format}, \param{va\_list }{argptr}}
This static function returns the string containing the result of calling
\helpref{PrintfV}{wxstringprintfv} with the passed parameters on it.
\helpref{Format}{wxstringformat}, \helpref{PrintfV}{wxstringprintfv}
+
\membersection{wxString::Freq}\label{wxstringfreq}
\constfunc{int}{Freq}{\param{char }{ch}}
Returns the number of occurrences of {\it ch} in the string.
+
+\membersection{wxString::FromAscii}\label{wxstringfromascii}
+
+\func{static wxString }{FromAscii}{\param{const char*}{ s}}
+
+\func{static wxString }{FromAscii}{\param{const char}{ c}}
+
+Converts the string or character from an ASCII, 7-bit form
+to the native wxString representation. Most useful when using
+a Unicode build of wxWidgets.
+Use \helpref{wxString constructors}{wxstringconstruct} if you
+need to convert from another charset.
+
+
\membersection{wxString::GetChar}\label{wxstringgetchar}
\constfunc{char}{GetChar}{\param{size\_t}{ n}}
Returns the character at position {\it n} (read-only).
+
\membersection{wxString::GetData}\label{wxstringgetdata}
-\constfunc{const char*}{GetData}{\void}
+\constfunc{const wxChar*}{GetData}{\void}
+
+wxWidgets compatibility conversion. Returns a constant pointer to the data in the string.
-wxWindows compatibility conversion. Returns a constant pointer to the data in the string.
\membersection{wxString::GetWritableChar}\label{wxstringgetwritablechar}
Returns a reference to the character at position {\it n}.
+
\membersection{wxString::GetWriteBuf}\label{wxstringgetwritebuf}
-\func{char*}{GetWriteBuf}{\param{size\_t}{ len}}
+\func{wxChar*}{GetWriteBuf}{\param{size\_t}{ len}}
Returns a writable buffer of at least {\it len} bytes.
+It returns a pointer to a new memory block, and the
+existing data will not be copied.
Call \helpref{wxString::UngetWriteBuf}{wxstringungetwritebuf} as soon as possible
to put the string back into a reasonable state.
+
\membersection{wxString::Index}\label{wxstringindex}
\constfunc{size\_t}{Index}{\param{char}{ ch}}
-Same as \helpref{wxString::Find}{wxstringfind}.
-
\constfunc{size\_t}{Index}{\param{const char*}{ sz}}
Same as \helpref{wxString::Find}{wxstringfind}.
-\constfunc{size\_t}{Index}{\param{const char*}{ sz}, \param{bool}{ caseSensitive = TRUE}, \param{bool}{ fromEnd = FALSE}}
-
-Search the element in the array, starting from either side.
-
-If {\it fromEnd} is TRUE, reverse search direction.
-
-If {\bf caseSensitive}, comparison is case sensitive (the default).
-
-Returns the index of the first item matched, or NOT\_FOUND.
-
% TODO
%\membersection{wxString::insert}\label{wxstringinsert}
% Wrong!
%
%Add new element at the given position.
%
+
\membersection{wxString::IsAscii}\label{wxstringisascii}
\constfunc{bool}{IsAscii}{\void}
-Returns TRUE if the string contains only ASCII characters.
+Returns true if the string contains only ASCII characters.
+
\membersection{wxString::IsEmpty}\label{wxstringisempty}
\constfunc{bool}{IsEmpty}{\void}
-Returns TRUE if the string is empty.
+Returns true if the string is empty.
+
\membersection{wxString::IsNull}\label{wxstringisnull}
\constfunc{bool}{IsNull}{\void}
-Returns TRUE if the string is empty (same as \helpref{IsEmpty}{wxstringisempty}).
+Returns true if the string is empty (same as \helpref{IsEmpty}{wxstringisempty}).
+
\membersection{wxString::IsNumber}\label{wxstringisnumber}
\constfunc{bool}{IsNumber}{\void}
-Returns TRUE if the string is an integer (with possible sign).
+Returns true if the string is an integer (with possible sign).
+
\membersection{wxString::IsSameAs}\label{wxstringissameas}
-\constfunc{bool}{IsSameAs}{\param{const char*}{ psz}, \param{bool}{ caseSensitive = TRUE}}
+\constfunc{bool}{IsSameAs}{\param{const char*}{ psz}, \param{bool}{ caseSensitive = true}}
Test for string equality, case-sensitive (default) or not.
-caseSensitive is TRUE by default (case matters).
-
-Returns TRUE if strings are equal, FALSE otherwise.
+caseSensitive is true by default (case matters).
-See also \helpref{Cmp}{wxstringcmp}, \helpref{CmpNoCase}{wxstringcmpnocase}, \helpref{IsSameAs}{wxstringissameas2}
+Returns true if strings are equal, false otherwise.
-\membersection{wxString::IsSameAs}\label{wxstringissameas2}
+See also \helpref{Cmp}{wxstringcmp}, \helpref{CmpNoCase}{wxstringcmpnocase}
-\constfunc{bool}{IsSameAs}{\param{char}{ c}, \param{bool}{ caseSensitive = TRUE}}
+\constfunc{bool}{IsSameAs}{\param{char}{ c}, \param{bool}{ caseSensitive = true}}
Test whether the string is equal to the single character {\it c}. The test is
-case-sensitive if {\it caseSensitive} is TRUE (default) or not if it is FALSE.
+case-sensitive if {\it caseSensitive} is true (default) or not if it is false.
-Returns TRUE if the string is equal to the character, FALSE otherwise.
+Returns true if the string is equal to the character, false otherwise.
+
+See also \helpref{Cmp}{wxstringcmp}, \helpref{CmpNoCase}{wxstringcmpnocase}
-See also \helpref{Cmp}{wxstringcmp}, \helpref{CmpNoCase}{wxstringcmpnocase}, \helpref{IsSameAs}{wxstringissameas}
\membersection{wxString::IsWord}\label{wxstringisword}
\constfunc{bool}{IsWord}{\void}
-Returns TRUE if the string is a word. TODO: what's the definition of a word?
+Returns true if the string is a word. TODO: what's the definition of a word?
+
\membersection{wxString::Last}\label{wxstringlast}
Returns a reference to the last character (writable).
+
\membersection{wxString::Left}\label{wxstringleft}
\constfunc{wxString}{Left}{\param{size\_t}{ count}}
-Returns the first {\it count} characters.
-
-\constfunc{wxString}{Left}{\param{char}{ ch}}
+Returns the first {\it count} characters of the string.
-Returns all characters before the first occurrence of {\it ch}.
-Returns the whole string if {\it ch} is not found.
\membersection{wxString::Len}\label{wxstringlen}
Returns the length of the string.
+
\membersection{wxString::Length}\label{wxstringlength}
\constfunc{size\_t}{Length}{\void}
Returns the length of the string (same as Len).
+
\membersection{wxString::Lower}\label{wxstringlower}
\constfunc{wxString}{Lower}{\void}
Returns this string converted to the lower case.
+
\membersection{wxString::LowerCase}\label{wxstringlowercase}
\func{void}{LowerCase}{\void}
Same as MakeLower.
+
\membersection{wxString::MakeLower}\label{wxstringmakelower}
-\func{void}{MakeLower}{\void}
+\func{wxString\&}{MakeLower}{\void}
+
+Converts all characters to lower case and returns the result.
-Converts all characters to lower case.
\membersection{wxString::MakeUpper}\label{wxstringmakeupper}
-\func{void}{MakeUpper}{\void}
+\func{wxString\&}{MakeUpper}{\void}
+
+Converts all characters to upper case and returns the result.
-Converts all characters to upper case.
\membersection{wxString::Matches}\label{wxstringmatches}
\constfunc{bool}{Matches}{\param{const char*}{ szMask}}
-Returns TRUE if the string contents matches a mask containing '*' and '?'.
+Returns true if the string contents matches a mask containing '*' and '?'.
+
+
+\membersection{wxString::mb\_str}\label{wxstringmbstr}
+
+\constfunc{const char*}{mb\_str}{\param{wxMBConv\&}{ conv}}
+
+\constfunc{const wxCharBuffer}{mb\_str}{\param{wxMBConv\&}{ conv}}
+
+Returns multibyte (C string) representation of the string.
+In Unicode build, converts using \arg{conv}'s \helpref{cWC2MB}{wxmbconvcwc2mb}
+method and returns wxCharBuffer. In ANSI build, this function is same
+as \helpref{c\_str}{wxstringcstr}.
+The macro wxWX2MBbuf is defined as the correct return type (without const).
+
+\wxheading{See also}
+
+\helpref{wxMBConv}{wxmbconv},
+\helpref{c\_str}{wxstringcstr}, \helpref{wc\_str}{wxstringwcstr},
+\helpref{fn\_str}{wxstringfnstr}
+
\membersection{wxString::Mid}\label{wxstringmid}
Returns a substring starting at {\it first}, with length {\it count}, or the rest of
the string if {\it count} is the default value.
+
\membersection{wxString::Pad}\label{wxstringpad}
-\func{wxString\&}{Pad}{\param{size\_t}{ count}, \param{char}{ pad = ' '}, \param{bool}{ fromRight = TRUE}}
+\func{wxString\&}{Pad}{\param{size\_t}{ count}, \param{char}{ pad = ' '}, \param{bool}{ fromRight = true}}
Adds {\it count} copies of {\it pad} to the beginning, or to the end of the string (the default).
Removes spaces from the left or from the right (default).
+
\membersection{wxString::Prepend}\label{wxstringprepend}
\func{wxString\&}{Prepend}{\param{const wxString\&}{ str}}
Prepends {\it str} to this string, returning a reference to this string.
+
\membersection{wxString::Printf}\label{wxstringprintf}
\func{int}{Printf}{\param{const char* }{pszFormat}, \param{}{...}}
Similar to the standard function {\it sprintf()}. Returns the number of
characters written, or an integer less than zero on error.
+Note that if {\tt wxUSE\_PRINTF\_POS\_PARAMS} is set to 1, then this function supports
+Unix98-style positional parameters:
+
+\begin{verbatim}
+ wxString str;
+
+ str.Printf(wxT("%d %d %d"), 1, 2, 3);
+ // str now contains "1 2 3"
+
+ str.Printf(wxT("%2$d %3$d %1$d"), 1, 2, 3);
+ // str now contains "2 3 1"
+\end{verbatim}
+
{\bf NB:} This function will use a safe version of {\it vsprintf()} (usually called
{\it vsnprintf()}) whenever available to always allocate the buffer of correct
size. Unfortunately, this function is not available on all platforms and the
dangerous {\it vsprintf()} will be used then which may lead to buffer overflows.
+
\membersection{wxString::PrintfV}\label{wxstringprintfv}
\func{int}{PrintfV}{\param{const char* }{pszFormat}, \param{va\_list}{ argPtr}}
Similar to vprintf. Returns the number of characters written, or an integer less than zero
on error.
+
\membersection{wxString::Remove}\label{wxstringremove}
\func{wxString\&}{Remove}{\param{size\_t}{ pos}}
\func{wxString\&}{Remove}{\param{size\_t}{ pos}, \param{size\_t}{ len}}
-Removes the {\it len} characters from the string, starting at {\it pos}.
+Removes {\it len} characters from the string, starting at {\it pos}.
+
\membersection{wxString::RemoveLast}\label{wxstringremovelast}
Removes the last character.
+
\membersection{wxString::Replace}\label{wxstringreplace}
-\func{size\_t}{Replace}{\param{const char*}{ szOld}, \param{const char*}{ szNew}, \param{bool}{ replaceAll = TRUE}}
+\func{size\_t}{Replace}{\param{const char*}{ szOld}, \param{const char*}{ szNew}, \param{bool}{ replaceAll = true}}
Replace first (or all) occurrences of substring with another one.
Returns the number of replacements made.
+
\membersection{wxString::Right}\label{wxstringright}
\constfunc{wxString}{Right}{\param{size\_t}{ count}}
Returns the last {\it count} characters.
+
\membersection{wxString::SetChar}\label{wxstringsetchar}
\func{void}{SetChar}{\param{size\_t}{ n}, \param{char}{ch}}
Sets the character at position {\it n}.
+
\membersection{wxString::Shrink}\label{wxstringshrink}
\func{void}{Shrink}{\void}
Minimizes the string's memory. This can be useful after a call to
\helpref{Alloc()}{wxstringalloc} if too much memory were preallocated.
+
\membersection{wxString::sprintf}\label{wxstringsprintf}
\func{void}{sprintf}{\param{const char* }{ fmt}}
The same as Printf.
+
\membersection{wxString::StartsWith}\label{wxstringstartswith}
\constfunc{bool}{StartsWith}{\param{const wxChar }{*prefix}, \param{wxString }{*rest = NULL}}
This function can be used to test if the string starts with the specified
-{\it prefix}. If it does, the function will return {\tt TRUE} and put the rest
+{\it prefix}. If it does, the function will return {\tt true} and put the rest
of the string (i.e. after the prefix) into {\it rest} string if it is not
-{\tt NULL}. Otherwise, the function returns {\tt FALSE} and doesn't modify the
+{\tt NULL}. Otherwise, the function returns {\tt false} and doesn't modify the
{\it rest}.
+
+\membersection{wxString::EndsWith}\label{wxstringendswith}
+
+\constfunc{bool}{EndsWith}{\param{const wxChar }{*suffix}, \param{wxString }{*rest = NULL}}
+
+This function can be used to test if the string ends with the specified
+{\it suffix}. If it does, the function will return {\tt true} and put the
+beginning of the string before the suffix into {\it rest} string if it is not
+{\tt NULL}. Otherwise, the function returns {\tt false} and doesn't
+modify the {\it rest}.
+
+
\membersection{wxString::Strip}\label{wxstringstrip}
\begin{verbatim}
Strip characters at the front and/or end. The same as Trim except that it
doesn't change this string.
+
\membersection{wxString::SubString}\label{wxstringsubstring}
\constfunc{wxString}{SubString}{\param{size\_t}{ from}, \param{size\_t}{ to}}
Returns the part of the string between the indices {\it from} and {\it to}
inclusive.
+
+\membersection{wxString::ToAscii}\label{wxstringtoascii}
+
+\constfunc{const char*}{ToAscii}{\void}
+
+Converts the string to an ASCII, 7-bit string (ANSI builds only).
+
+\constfunc{const wxCharBuffer}{ToAscii}{\void}
+
+Converts the string to an ASCII, 7-bit string in the form of
+a wxCharBuffer (Unicode builds only).
+
+Note that this conversion only works if the string contains only ASCII
+characters. The \helpref{mb\_str}{wxstringmbstr} method provides more
+powerful means of converting wxString to C string.
+
+
\membersection{wxString::ToDouble}\label{wxstringtodouble}
\constfunc{bool}{ToDouble}{\param{double}{ *val}}
-Attempts to convert the string to a floating point number. Returns TRUE on
-success (the number is stored in the location pointed to by {\it val}) or FALSE
+Attempts to convert the string to a floating point number. Returns true on
+success (the number is stored in the location pointed to by {\it val}) or false
if the string does not represent such number.
\wxheading{See also}
\helpref{wxString::ToLong}{wxstringtolong},\\
\helpref{wxString::ToULong}{wxstringtoulong}
+
\membersection{wxString::ToLong}\label{wxstringtolong}
-\constfunc{bool}{ToLong}{\param{long}{ *val}, \param{int }{base = $0$}}
+\constfunc{bool}{ToLong}{\param{long}{ *val}, \param{int }{base = $10$}}
Attempts to convert the string to a signed integer in base {\it base}. Returns
-{\tt TRUE} on success in which case the number is stored in the location
-pointed to by {\it val} or {\tt FALSE} if the string does not represent a
+{\tt true} on success in which case the number is stored in the location
+pointed to by {\it val} or {\tt false} if the string does not represent a
valid number in the given base.
-The default value of {\it base} $0$ is special and means that the usual rules
-of {\tt C} numbers are applied: if the number starts with {\tt 0x} it is
-considered to be in base $16$, if it starts with {\tt 0} - in base $8$ and in
-base $10$ otherwise. Note that you may want to specify the base $10$ explicitly
-if you are parsing the numbers which may have leading zeroes as otherwise the
-string {\tt "09"} may not be parsed correctly: it would be understood as an
-octal number because of the leading zero and the parsing would then fail as
-{\tt '9'} is not a valid octal digit.
+The value of {\it base} must be comprised between $2$ and $36$, inclusive, or
+be a special value $0$ which means that the usual rules of {\tt C} numbers are
+applied: if the number starts with {\tt 0x} it is considered to be in base
+$16$, if it starts with {\tt 0} - in base $8$ and in base $10$ otherwise. Note
+that you may not want to specify the base $0$ if you are parsing the numbers
+which may have leading zeroes as they can yield unexpected (to the user not
+familiar with C) results.
\wxheading{See also}
\helpref{wxString::ToDouble}{wxstringtodouble},\\
\helpref{wxString::ToULong}{wxstringtoulong}
+
+\membersection{wxString::ToLongLong}\label{wxstringtolonglong}
+
+\constfunc{bool}{ToLongLong}{\param{wxLongLong\_t}{ *val}, \param{int }{base = $10$}}
+
+This is exactly the same as \helpref{ToLong}{wxstringtolong} but works with 64
+bit integer numbers.
+
+Notice that currently it doesn't work (always returns \false) if parsing of 64
+bit numbers is not supported by the underlying C run-time library. Compilers
+with C99 support and Microsoft Visual C++ version 7 and higher do support this.
+
+\wxheading{See also}
+
+\helpref{wxString::ToLong}{wxstringtolong},\\
+\helpref{wxString::ToULongLong}{wxstringtoulonglong}
+
+
\membersection{wxString::ToULong}\label{wxstringtoulong}
-\constfunc{bool}{ToULong}{\param{unsigned long}{ *val}, \param{int }{base = $0$}}
+\constfunc{bool}{ToULong}{\param{unsigned long}{ *val}, \param{int }{base = $10$}}
-Attempts to convert the string to a ansigned integer in base {\it base}.
-Returns {\tt TRUE} on success in which case the number is stored in the
-location pointed to by {\it val} or {\tt FALSE} if the string does not
-represent a valid number in the given base.
+Attempts to convert the string to an unsigned integer in base {\it base}.
+Returns {\tt true} on success in which case the number is stored in the
+location pointed to by {\it val} or {\tt false} if the string does not
+represent a valid number in the given base. Please notice that this function
+behaves in the same way as the standard \texttt{strtoul()} and so it simply
+converts negative numbers to unsigned representation instead of rejecting them
+(e.g. $-1$ is returned as \texttt{ULONG\_MAX}).
See \helpref{wxString::ToLong}{wxstringtolong} for the more detailed
description of the {\it base} parameter.
\helpref{wxString::ToDouble}{wxstringtodouble},\\
\helpref{wxString::ToLong}{wxstringtolong}
+
+\membersection{wxString::ToULongLong}\label{wxstringtoulonglong}
+
+\constfunc{bool}{ToULongLong}{\param{wxULongLong\_t}{ *val}, \param{int }{base = $10$}}
+
+This is exactly the same as \helpref{ToULong}{wxstringtoulong} but works with 64
+bit integer numbers.
+
+Please see \helpref{ToLongLong}{wxstringtolonglong} for additional remarks.
+
+
\membersection{wxString::Trim}\label{wxstringtrim}
-\func{wxString\&}{Trim}{\param{bool}{ fromRight = TRUE}}
+\func{wxString\&}{Trim}{\param{bool}{ fromRight = true}}
+
+Removes white-space (space, tabs, form feed, newline and carriage return) from
+the left or from the right end of the string (right is default).
-Removes spaces from the left or from the right (default).
\membersection{wxString::Truncate}\label{wxstringtruncate}
Truncate the string to the given length.
+
\membersection{wxString::UngetWriteBuf}\label{wxstringungetwritebuf}
\func{void}{UngetWriteBuf}{\void}
-Puts the string back into a reasonable state, after
+\func{void}{UngetWriteBuf}{\param{size\_t }{len}}
+
+Puts the string back into a reasonable state (in which it can be used
+normally), after
\rtfsp\helpref{wxString::GetWriteBuf}{wxstringgetwritebuf} was called.
+The version of the function without the {\it len} parameter will calculate the
+new string length itself assuming that the string is terminated by the first
+{\tt NUL} character in it while the second one will use the specified length
+and thus is the only version which should be used with the strings with
+embedded {\tt NUL}s (it is also slightly more efficient as {\tt strlen()}
+doesn't have to be called).
+
+
\membersection{wxString::Upper}\label{wxstringupper}
\constfunc{wxString}{Upper}{\void}
Returns this string converted to upper case.
+
\membersection{wxString::UpperCase}\label{wxstringuppercase}
\func{void}{UpperCase}{\void}
The same as MakeUpper.
+
+\membersection{wxString::wc\_str}\label{wxstringwcstr}
+
+\constfunc{const wchar\_t*}{wc\_str}{\param{wxMBConv\&}{ conv}}
+
+\constfunc{const wxWCharBuffer}{wc\_str}{\param{wxMBConv\&}{ conv}}
+
+Returns wide character representation of the string.
+In ANSI build, converts using \arg{conv}'s \helpref{cMB2WC}{wxmbconvcmb2wc}
+method and returns wxWCharBuffer. In Unicode build, this function is same
+as \helpref{c\_str}{wxstringcstr}.
+The macro wxWX2WCbuf is defined as the correct return type (without const).
+
+\wxheading{See also}
+
+\helpref{wxMBConv}{wxmbconv},
+\helpref{c\_str}{wxstringcstr}, \helpref{mb\_str}{wxstringwcstr},
+\helpref{fn\_str}{wxstringfnstr}
+
+
\membersection{wxString::operator!}\label{wxstringoperatornot}
\constfunc{bool}{operator!}{\void}
-Empty string is FALSE, so !string will only return TRUE if the string is empty.
-This allows the tests for NULLness of a {\it const char *} pointer and emptyness
+Empty string is false, so !string will only return true if the string is empty.
+This allows the tests for NULLness of a {\it const char *} pointer and emptiness
of the string to look the same in the code and makes it easier to port old code
to wxString.
See also \helpref{IsEmpty()}{wxstringisempty}.
+
\membersection{wxString::operator $=$}\label{wxstringoperatorassign}
\func{wxString\&}{operator $=$}{\param{const wxString\&}{ str}}
Assignment: the effect of each operation is the same as for the corresponding
constructor (see \helpref{wxString constructors}{wxstringconstruct}).
+
\membersection{wxString::operator $+$}\label{wxstringoperatorplus}
-Concatenation: all these operators return a new strign equal to the sum of the
-operands.
+Concatenation: all these operators return a new string equal to the
+concatenation of the operands.
\func{wxString}{operator $+$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}}
\func{wxString}{operator $+$}{\param{const char*}{ x}, \param{const wxString\&}{ y}}
+
\membersection{wxString::operator $+=$}\label{wxstringplusequal}
\func{void}{operator $+=$}{\param{const wxString\&}{ str}}
Concatenation in place: the argument is appended to the string.
+
\membersection{wxString::operator []}\label{wxstringoperatorbracket}
-\func{char\&}{operator []}{\param{size\_t}{ i}}
+\func{wxChar\&}{operator []}{\param{size\_t}{ i}}
-\func{char}{operator []}{\param{size\_t}{ i}}
+\constfunc{wxChar}{operator []}{\param{size\_t}{ i}}
-\func{char}{operator []}{\param{int}{ i}}
+\func{wxChar\&}{operator []}{\param{int}{ i}}
+
+\constfunc{wxChar}{operator []}{\param{int}{ i}}
Element extraction.
+
\membersection{wxString::operator ()}\label{wxstringoperatorparenth}
\func{wxString}{operator ()}{\param{size\_t}{ start}, \param{size\_t}{ len}}
Same as Mid (substring extraction).
+
\membersection{wxString::operator \cinsert}\label{wxstringoperatorout}
\func{wxString\&}{operator \cinsert}{\param{const wxString\&}{ str}}
value into the string. Precision or format cannot be set using them, you can use
\helpref{Printf}{wxstringprintf} for this.
+
\membersection{wxString::operator \cextract}\label{wxstringoperatorin}
\func{friend istream\&}{operator \cextract}{\param{istream\&}{ is}, \param{wxString\&}{ str}}
Extraction from a stream.
+
\membersection{wxString::operator const char*}\label{wxstringoperatorconstcharpt}
\constfunc{}{operator const char*}{\void}
Implicit conversion to a C string.
+
\membersection{Comparison operators}\label{wxstringcomparison}
\func{bool}{operator $==$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}}
\section{\class{wxStringBuffer}}\label{wxstringbuffer}
This tiny class allows to conveniently access the \helpref{wxString}{wxstring}
-internal buffer as a writable pointer without any risk to forget to restore
+internal buffer as a writable pointer without any risk of forgetting to restore
the string to the usable state later.
For example, assuming you have a low-level OS function called
}
\end{verbatim}
+Note that the exact usage of this depends on whether on not wxUSE\_STL is enabled. If
+wxUSE\_STL is enabled, wxStringBuffer creates a separate empty character buffer, and
+if wxUSE\_STL is disabled, it uses GetWriteBuf() from wxString, keeping the same buffer
+wxString uses intact. In other words, relying on wxStringBuffer containing the old
+wxString data is probably not a good idea if you want to build your program in both
+with and without wxUSE\_STL.
+
\wxheading{Derived from}
None
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxStringBuffer::wxStringBuffer}
+
+\membersection{wxStringBuffer::wxStringBuffer}\label{wxstringbufferctor}
\func{}{wxStringBuffer}{\param{const wxString\& }{str}, \param{size\_t }{len}}
Constructs a writable string buffer object associated with the given string
-and containing enough space for at least {\it len} characters. Basicly, this
+and containing enough space for at least {\it len} characters. Basically, this
is equivalent to calling \helpref{GetWriteBuf}{wxstringgetwritebuf} and
saving the result.
-\membersection{wxStringBuffer::\destruct{wxStringBuffer}}
+
+\membersection{wxStringBuffer::\destruct{wxStringBuffer}}\label{wxstringbufferdtor}
\func{}{\destruct{wxStringBuffer}}{\void}
Restores the string passed to the constructor to the usable state by calling
\helpref{UngetWriteBuf}{wxstringungetwritebuf} on it.
-\membersection{wxStringBuffer::operator wxChar *}
-\constfunc{wxChar *}{operator wxChar *}{\void}
+\membersection{wxStringBuffer::operator wxChar *}\label{wxstringbufferwxchar}
+
+\func{wxChar *}{operator wxChar *}{\void}
+
+Returns the writable pointer to a buffer of the size at least equal to the
+length specified in the constructor.
+
+
+
+\section{\class{wxStringBufferLength}}\label{wxstringbufferlength}
+
+This tiny class allows to conveniently access the \helpref{wxString}{wxstring}
+internal buffer as a writable pointer without any risk of forgetting to restore
+the string to the usable state later, and allows the user to set the internal
+length of the string.
+
+For example, assuming you have a low-level OS function called
+{\tt int GetMeaningOfLifeAsString(char *)} copying the value in the provided
+buffer (which must be writable, of course), and returning the actual length
+of the string, you might call it like this:
+
+\begin{verbatim}
+ wxString theAnswer;
+ wxStringBuffer theAnswerBuffer(theAnswer, 1024);
+ int nLength = GetMeaningOfLifeAsString(theAnswerBuffer);
+ theAnswerBuffer.SetLength(nLength);
+ if ( theAnswer != "42" )
+ {
+ wxLogError("Something is very wrong!");
+ }
+\end{verbatim}
+
+Note that the exact usage of this depends on whether on not wxUSE\_STL is enabled. If
+wxUSE\_STL is enabled, wxStringBuffer creates a separate empty character buffer, and
+if wxUSE\_STL is disabled, it uses GetWriteBuf() from wxString, keeping the same buffer
+wxString uses intact. In other words, relying on wxStringBuffer containing the old
+wxString data is probably not a good idea if you want to build your program in both
+with and without wxUSE\_STL.
+
+Note that SetLength {\tt must} be called before wxStringBufferLength destructs.
+
+\wxheading{Derived from}
+
+None
+
+\wxheading{Include files}
+
+<wx/string.h>
+
+\latexignore{\rtfignore{\wxheading{Members}}}
+
+
+\membersection{wxStringBufferLength::wxStringBufferLength}\label{wxstringbufferlengthctor}
+
+\func{}{wxStringBufferLength}{\param{const wxString\& }{str}, \param{size\_t }{len}}
+
+Constructs a writable string buffer object associated with the given string
+and containing enough space for at least {\it len} characters. Basically, this
+is equivalent to calling \helpref{GetWriteBuf}{wxstringgetwritebuf} and
+saving the result.
+
+
+\membersection{wxStringBufferLength::\destruct{wxStringBufferLength}}\label{wxstringbufferlengthdtor}
+
+\func{}{\destruct{wxStringBufferLength}}{\void}
+
+Restores the string passed to the constructor to the usable state by calling
+\helpref{UngetWriteBuf}{wxstringungetwritebuf} on it.
+
+
+\membersection{wxStringBufferLength::SetLength}\label{wxstringbufferlengthsetlength}
+
+\func{void}{SetLength}{\param{size\_t }{nLength}}
+
+Sets the internal length of the string referred to by wxStringBufferLength to
+{\it nLength} characters.
+
+Must be called before wxStringBufferLength destructs.
+
+
+\membersection{wxStringBufferLength::operator wxChar *}\label{wxstringbufferlengthwxchar}
+
+\func{wxChar *}{operator wxChar *}{\void}
Returns the writable pointer to a buffer of the size at least equal to the
length specified in the constructor.
projects / wxWidgets.git / blobdiff