\section{\class{wxString}}\label{wxstring}
wxString is a class representing a character string. Please see the
-\helpref{wxString overview}{wxstringoverview} for more information about it. As explained
-there, wxString implements about 90\% of methods of the std::string class (iterators
-are not supported, nor all methods which use them).
-These standard functions are not documented in this manual so please see the STL documentation.
+\helpref{wxString overview}{wxstringoverview} for more information about it.
+
+As explained there, wxString implements most of the methods of the std::string
+class.
+These standard functions are not documented in this manual, please see the
+\urlref{STL documentation}{http://www.cppreference.com/cppstl.html}).
The behaviour of all these functions is identical to the behaviour described
there.
+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.
+
\wxheading{Derived from}
None
<wx/string.h>
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
\wxheading{Predefined objects}
Objects:
\wxheading{See also}
-\overview{Overview}{wxstringoverview}
+\helpref{wxString overview}{wxstringoverview}, \helpref{Unicode overview}{unicode}
\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)
-as Cmp does.
+\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:
it only understands '*' and '?' metacharacters in the sense of DOS command line
interpreter.
+\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 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{Matches}{wxstringmatches}\\
+\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{BeforeFirst}{wxstringbeforefirst}\\
\helpref{BeforeLast}{wxstringbeforelast}\\
\helpref{AfterFirst}{wxstringafterfirst}\\
-\helpref{AfterLast}{wxstringafterlast}
+\helpref{AfterLast}{wxstringafterlast}\\
+\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{ToLongLong}{wxstringtolonglong}\\
\helpref{ToULong}{wxstringtoulong}\\
+\helpref{ToULongLong}{wxstringtoulonglong}\\
\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
-some external API which requires the caller to provide a writable buffer, but
-extreme care should be taken when using it: before performing any other
-operation on the string \helpref{UngetWriteBuf}{wxstringungetwritebuf} {\bf
-must} be called!
+\helpref{wxStringBuffer}{wxstringbuffer}
+and \helpref{wxStringBufferLength}{wxstringbufferlength} classes may be very
+useful when working with some external API which requires the caller to provide
+a writable buffer.
\helpref{Alloc}{wxstringalloc}\\
\helpref{Shrink}{wxstringshrink}\\
-\helpref{GetWriteBuf}{wxstringgetwritebuf}\\
-\helpref{UngetWriteBuf}{wxstringungetwritebuf}
+\helpref{wxStringBuffer}{wxstringbuffer}\\
+\helpref{wxStringBufferLength}{wxstringbufferlength}
-\membersection{Miscellaneous}
+
+\membersection{Miscellaneous}\label{miscellaneousinwxstring}
Other string functions.
\helpref{Trim}{wxstringtrim}\\
-\helpref{Pad}{wxstringpad}\\
-\helpref{Truncate}{wxstringtruncate}
+\helpref{Truncate}{wxstringtruncate}\\
+\helpref{Pad}{wxstringpad}
+
-\membersection{wxWindows 1.xx compatiblity functions}
+\membersection{wxWidgets 1.xx compatibility functions}\label{backwardcompatibilityinwxstring}
-These functiosn are deprecated, please consider using new wxWindows 2.0
+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{sprintf}{wxstringsprintf}\\
+% keep ordered alphabetically
\helpref{CompareTo}{wxstringcompareto}\\
-\helpref{Length}{wxstringlength}\\
+\helpref{Contains}{wxstringcontains}\\
+\helpref{First}{wxstringfirst}\\
\helpref{Freq}{wxstringfreq}\\
-\helpref{LowerCase}{wxstringlowercase}\\
-\helpref{UpperCase}{wxstringuppercase}\\
-\helpref{Strip}{wxstringstrip}\\
\helpref{Index}{wxstringindex}\\
-\helpref{Remove}{wxstringremove}\\
-\helpref{First}{wxstringfirst}\\
-\helpref{Last}{wxstringlast}\\
-\helpref{Contains}{wxstringcontains}\\
-\helpref{IsNull}{wxstringisnull}\\
\helpref{IsAscii}{wxstringisascii}\\
+\helpref{IsNull}{wxstringisnull}\\
\helpref{IsNumber}{wxstringisnumber}\\
-\helpref{IsWord}{wxstringisword}
+\helpref{IsWord}{wxstringisword}\\
+\helpref{Last}{wxstringlast}\\
+\helpref{Length}{wxstringlength}\\
+\helpref{LowerCase}{wxstringlowercase}\\
+\helpref{Remove}{wxstringremove}\\
+\helpref{Strip}{wxstringstrip}\\
+\helpref{SubString}{wxstringsubstring}\\
+\helpref{UpperCase}{wxstringuppercase}
+
\membersection{std::string compatibility functions}\label{wxstringat}
// find first n characters of sz
size_t find(const char* sz, size_t nStart = 0, size_t n = npos) const;
- // find the first occurence of character ch after nStart
+ // find the first occurrence of character ch after nStart
size_t find(char ch, size_t nStart = 0) const;
// rfind() family is exactly like find() but works right to left
// as find, but from the end
size_t rfind(char ch, size_t nStart = npos) const;
- // find first/last occurence of any character in the set
+ // find first/last occurrence of any character in the set
//
size_t find_first_of(const wxString& str, size_t nStart = 0) const;
// same as rfind(char, size_t)
size_t find_last_of (char c, size_t nStart = npos) const;
- // find first/last occurence of any character not in the set
+ // find first/last occurrence of any character not in the set
//
size_t find_first_not_of(const wxString& str, size_t nStart = 0) const;
}}
+
\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}}
Copy constructor.
-\func{}{wxString}{\param{char}{ ch}, \param{size\_t}{ n = 1}}
+\func{}{wxString}{\param{wxChar}{ ch}, \param{size\_t}{ n = 1}}
Constructs a string of {\it n} copies of character {\it ch}.
-\func{}{wxString}{\param{const char*}{ psz}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}}
+\func{}{wxString}{\param{const wxChar*}{ 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 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
+the correct value for {\it nLength}. However, the default form of it works
+only with strings without intermediate {\tt NUL}s because it uses
+{\tt strlen()} to calculate the effective length and it would not give correct
+results otherwise.
\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.
+For ANSI builds only (note the use of {\tt char} instead of {\tt wxChar}).
+
+\wxheading{Constructors with conversion}
+
+The following constructors allow you to construct wxString from a wide string
+in ANSI build or from a C string in Unicode build.
+
+\func{}{wxString}{\param{const wchar\_t*}{ psz}, \param{const wxMBConv\&}{ conv}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}}
-\func{}{wxString}{\param{const wchar\_t*}{ psz}}
+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{const wxMBConv\&}{ conv = wxConvLibc}, \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 (the default converter uses current locale's
+charset). 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}}
+\func{wxString\&}{Append}{\param{const wxChar*}{ psz}}
Concatenates {\it psz} to this string, returning a reference to it.
-\func{wxString\&}{Append}{\param{char}{ ch}, \param{int}{ count = 1}}
+\func{wxString\&}{Append}{\param{wxChar}{ ch}, \param{int}{ count = 1}}
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}}
+\constfunc{wxString}{AfterFirst}{\param{wxChar}{ ch}}
-Gets all the characters after the first occurence of {\it 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}}
+\constfunc{wxString}{AfterLast}{\param{wxChar}{ ch}}
-Gets all the characters after the last occurence of {\it 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}}
+\constfunc{wxString}{BeforeFirst}{\param{wxChar}{ ch}}
-Gets all characters before the first occurence of {\it 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}}
+\constfunc{wxString}{BeforeLast}{\param{wxChar}{ ch}}
-Gets all characters before the last occurence of {\it 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).
+
+Note that the returned value is not convertible to {\tt char*} or
+{\tt wchar\_t*}, use \helpref{char\_str}{wxstringcharstr} or
+\helpref{wchar\_string}{wxstringwcharstr} if you need to pass string value
+to a function expecting non-const pointer.
+
+\wxheading{See also}
+
+\helpref{mb\_str}{wxstringmbstr}, \helpref{wc\_str}{wxstringwcstr},
+\helpref{fn\_str}{wxstringfnstr}, \helpref{char\_str}{wxstringcharstr},
+\helpref{wchar\_string}{wxstringwcharstr}
+
+\membersection{wxString::char\_str}\label{wxstringcharstr}
+
+\constfunc{wxWritableCharBuffer}{char\_str}{\param{const wxMBConv\&}{ conv = wxConvLibc}}
+
+Returns an object with string data that is implicitly convertible to
+{\tt char*} pointer. Note that any change to the returned buffer is lost and so
+this function is only usable for passing strings to legacy libraries that
+don't have const-correct API. Use \helpref{wxStringBuffer}{wxstringbuffer} if
+you want to modify the string.
+
+\wxheading{See also}
+
+\helpref{mb\_str}{wxstringmbstr}, \helpref{wc\_str}{wxstringwcstr},
+\helpref{fn\_str}{wxstringfnstr}, \helpref{c\_str}{wxstringcstr},
+\helpref{wchar\_str}{wxstringwcharstr}
-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 char*}{ psz}}
+\constfunc{int}{Cmp}{\param{const wxString\&}{ s}}
+
+\constfunc{int}{Cmp}{\param{const wxChar*}{ psz}}
Case-sensitive comparison.
Returns a positive value if the string is greater than the argument, zero if
-it si equal to it or negative value if it is less than argument (same semantics
+it is equal to it or a negative value if it is less than the argument (same semantics
as the standard {\it strcmp()} function).
See also \helpref{CmpNoCase}{wxstringcmpnocase}, \helpref{IsSameAs}{wxstringissameas}.
+
\membersection{wxString::CmpNoCase}\label{wxstringcmpnocase}
-\constfunc{int}{CmpNoCase}{\param{const char*}{ psz}}
+\constfunc{int}{CmpNoCase}{\param{const wxString\&}{ s}}
+
+\constfunc{int}{CmpNoCase}{\param{const wxChar*}{ psz}}
Case-insensitive comparison.
Returns a positive value if the string is greater than the argument, zero if
-it si equal to it or negative value if it is less than argument (same semantics
+it is equal to it or a negative value if it is less than the argument (same semantics
as the standard {\it strcmp()} function).
See also \helpref{Cmp}{wxstringcmp}, \helpref{IsSameAs}{wxstringissameas}.
+
\membersection{wxString::CompareTo}\label{wxstringcompareto}
\begin{verbatim}
-#define NO_POS ((int)(-1)) // undefined position
-enum caseCompare {exact, ignoreCase};
+enum wxString::caseCompare {exact, ignoreCase};
\end{verbatim}
-\constfunc{int}{CompareTo}{\param{const char*}{ psz}, \param{caseCompare}{ cmp = exact}}
+\constfunc{int}{CompareTo}{\param{const wxChar*}{ psz}, \param{caseCompare}{ cmp = exact}}
Case-sensitive comparison. Returns 0 if equal, 1 if greater or -1 if less.
+This is a wxWidgets 1.xx compatibility function; use \helpref{Cmp}{wxstringcmp} instead.
+
+
\membersection{wxString::Contains}\label{wxstringcontains}
\constfunc{bool}{Contains}{\param{const wxString\&}{ str}}
-Returns 1 if target appears anyhere in wxString; else 0.
+Returns \true if target appears anywhere in wxString; else \false.
+
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
\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{wxUniChar}{ ch}, \param{bool}{ fromEnd = false}}
-Searches for the given character. Returns the starting index, or -1 if not found.
+Searches for the given character. Returns the starting index, or {\tt wxNOT\_FOUND} if not found.
-\constfunc{int}{Find}{\param{const char*}{ sz}}
+\constfunc{int}{Find}{\param{const wxString\&}{ sub}}
+
+Searches for the given string. Returns the starting index, or {\tt wxNOT\_FOUND} 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{wxChar}{ c}}
+
+\constfunc{int}{First}{\param{const wxChar*}{ psz}}
+
+\constfunc{int}{First}{\param{const wxString\&}{ str}}
+
+Same as \helpref{Find}{wxstringfind}.
+
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
+
+\membersection{wxString::fn\_str}\label{wxstringfnstr}
+
+\constfunc{const wchar\_t*}{fn\_str}{\void}
+
+\constfunc{const char*}{fn\_str}{\void}
+
+\constfunc{const wxCharBuffer}{fn\_str}{\void}
-\constfunc{size\_t}{First}{\param{const char*}{ psz}}
+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.
-\constfunc{size\_t}{First}{\param{const wxString\&}{ str}}
+\wxheading{See also}
-\constfunc{size\_t}{First}{\param{const char}{ ch}}
+\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}{Frec}{\param{char }{ch}}
+\constfunc{int}{Freq}{\param{wxChar }{ch}}
+
+Returns the number of occurrences of {\it ch} in the string.
+
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
+\membersection{wxString::From8BitData}\label{wxstringfrom8bitdata}
+
+\func{static wxString }{From8BitData}{\param{const char*}{ buf}, \param{size\_t}{len}}
+
+\func{static wxString }{From8BitData}{\param{const char*}{ buf}}
+
+Converts given buffer of binary data from 8-bit string to wxString. In Unicode
+build, the string is interpreted as being in ISO-8859-1 encoding. The version
+without \arg{len} parameter takes NUL-terminated data.
+
+This is a convenience method useful when storing binary data in wxString.
+
+\newsince{2.8.4}
+
+\wxheading{See also}
+
+\helpref{To8BitData}{wxstringto8bitdata}
+
+
+\membersection{wxString::FromAscii}\label{wxstringfromascii}
+
+\func{static wxString }{FromAscii}{\param{const char*}{ s}}
+
+\func{static wxString }{FromAscii}{\param{const unsigned char*}{ s}}
+
+\func{static wxString }{FromAscii}{\param{const char*}{ s}, \param{size\_t}{ len}}
+
+\func{static wxString }{FromAscii}{\param{const unsigned char*}{ s}, \param{size\_t}{ len}}
+
+\func{static wxString }{FromAscii}{\param{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 (note the use of {\tt char} instead of {\tt wxChar}).
+Use \helpref{wxString constructors}{wxstringconstruct} if you
+need to convert from another charset.
+
+
+\membersection{wxString::FromUTF8}\label{wxstringfromutf8}
+
+\func{static wxString }{FromUTF8}{\param{const char*}{ s}}
+
+\func{static wxString }{FromUTF8}{\param{const char*}{ s}, \param{size\_t}{ len}}
+
+Converts C string encoded in UTF-8 to wxString.
+
+Note that this method assumes that \arg{s} is a valid UTF-8 sequence and
+doesn't do any validation in release builds, it's validity is only checked in
+debug builds.
-Returns the number of occurences of {it ch} in the string.
\membersection{wxString::GetChar}\label{wxstringgetchar}
-\constfunc{char}{GetChar}{\param{size\_t}{ n}}
+\constfunc{wxChar}{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}
-\func{char\&}{GetWritableChar}{\param{size\_t}{ n}}
+\func{wxChar\&}{GetWritableChar}{\param{size\_t}{ n}}
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.
+Call \helpref{wxString::UngetWriteBuf}{wxstringungetwritebuf} as soon as
+possible to put the string back into a reasonable state.
-\membersection{wxString::Index}\label{wxstringindex}
+This method is deprecated, please use
+\helpref{wxStringBuffer}{wxstringbuffer} or
+\helpref{wxStringBufferLength}{wxstringbufferlength} instead.
-\constfunc{size\_t}{Index}{\param{char}{ ch}, \param{int}{ startpos = 0}}
-Same as \helpref{wxString::Find}{wxstringfind}.
-
-\constfunc{size\_t}{Index}{\param{const char*}{ sz}}
-
-Same as \helpref{wxString::Find}{wxstringfind}.
+\membersection{wxString::Index}\label{wxstringindex}
-\constfunc{size\_t}{Index}{\param{const char*}{ sz}, \param{bool}{ caseSensitive = TRUE}, \param{bool}{ fromEnd = FALSE}}
+\constfunc{size\_t}{Index}{\param{wxChar}{ ch}}
-Search the element in the array, starting from either side.
+\constfunc{size\_t}{Index}{\param{const wxChar*}{ sz}}
-If {\it fromEnd} is TRUE, reverse search direction.
+Same as \helpref{wxString::Find}{wxstringfind}.
-If {\bf caseSensitive}, comparison is case sensitive (the default).
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
-Returns the index of the first item matched, or NOT\_FOUND.
-% TODO
-%\membersection{wxString::insert}\label{wxstringinsert}
-% Wrong!
-%\func{void}{insert}{\param{const wxString\&}{ str}, \param{size\_t}{ index}}
-%
-%Add new element at the given position.
-%
\membersection{wxString::IsAscii}\label{wxstringisascii}
\constfunc{bool}{IsAscii}{\void}
-Returns TRUE if the string is ASCII.
+Returns \true if the string contains only ASCII characters.
+
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
\membersection{wxString::IsEmpty}\label{wxstringisempty}
\constfunc{bool}{IsEmpty}{\void}
-Returns TRUE if the string is NULL.
+Returns \true if the string is empty.
+
\membersection{wxString::IsNull}\label{wxstringisnull}
\constfunc{bool}{IsNull}{\void}
-Returns TRUE if the string is NULL (same as IsEmpty).
+Returns \true if the string is empty (same as \helpref{IsEmpty}{wxstringisempty}).
+
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
\membersection{wxString::IsNumber}\label{wxstringisnumber}
\constfunc{bool}{IsNumber}{\void}
-Returns TRUE if the string is a number.
+Returns \true if the string is an integer (with possible sign).
+
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
\membersection{wxString::IsSameAs}\label{wxstringissameas}
-\constfunc{bool}{IsSameAs}{\param{const char*}{ psz}, \param{bool}{ caseSensitive = TRUE}}
+\constfunc{bool}{IsSameAs}{\param{const wxChar*}{ 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{wxChar}{ 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.
+
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
\membersection{wxString::Last}\label{wxstringlast}
-\constfunc{char}{Last}{\void}
+\constfunc{wxChar}{Last}{\void}
Returns the last character.
-\func{char\&}{Last}{\void}
+\func{wxChar\&}{Last}{\void}
Returns a reference to the last character (writable).
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
+
\membersection{wxString::Left}\label{wxstringleft}
\constfunc{wxString}{Left}{\param{size\_t}{ count}}
-Returns the first {\it count} characters.
+Returns the first {\it count} characters of the string.
-\constfunc{wxString}{Left}{\param{char}{ ch}}
-
-Returns all characters before the first occurence 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).
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
+
\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.
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
+
\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}}
+\constfunc{bool}{Matches}{\param{const wxString\&}{ mask}}
+
+Returns \true if the string contents matches a mask containing '*' and '?'.
+
+
+\membersection{wxString::mb\_str}\label{wxstringmbstr}
+
+\constfunc{const char*}{mb\_str}{\param{const wxMBConv\&}{ conv = wxConvLibc}}
+
+\constfunc{const wxCharBuffer}{mb\_str}{\param{const wxMBConv\&}{ conv = wxConvLibc}}
+
+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}, \helpref{char\_str}{wxstringcharstr}
-Returns TRUE if the string contents matches a mask containing '*' and '?'.
\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{wxChar}{ 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{}{...}}
+\func{int}{Printf}{\param{const wxChar* }{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}}
+\func{int}{PrintfV}{\param{const wxChar* }{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}.
+
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
\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 wxString\&}{ strOld}, \param{const wxString\&}{ strNew}, \param{bool}{ replaceAll = true}}
-Replace first (or all) occurences of substring with another one.
+Replace first (or all) occurrences of substring with another one.
-{\it replaceAll}: global replace (default), or only the first occurence.
+{\it replaceAll}: global replace (default), or only the first occurrence.
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}}
+\func{void}{SetChar}{\param{size\_t}{ n}, \param{wxChar}{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}}
+\membersection{wxString::StartsWith}\label{wxstringstartswith}
+
+\constfunc{bool}{StartsWith}{\param{const wxString\& }{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 \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 \false and doesn't modify the
+{\it rest}.
+
+
+\membersection{wxString::EndsWith}\label{wxstringendswith}
+
+\constfunc{bool}{EndsWith}{\param{const wxString\& }{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 \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 \false and doesn't
+modify the {\it rest}.
-The same as Printf.
\membersection{wxString::Strip}\label{wxstringstrip}
\begin{verbatim}
-enum stripType {leading = 0x1, trailing = 0x2, both = 0x3};
+enum wxString::stripType {leading = 0x1, trailing = 0x2, both = 0x3};
\end{verbatim}
\constfunc{wxString}{Strip}{\param{stripType}{ s = trailing}}
Strip characters at the front and/or end. The same as Trim except that it
doesn't change this string.
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
+
\membersection{wxString::SubString}\label{wxstringsubstring}
-\constfunc{wxString}{SubString}{\param{size\_t}{ to}, \param{size\_t}{ from}}
+\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.
+
+This is a wxWidgets 1.xx compatibility function, use \helpref{Mid}{wxstringmid}
+instead (but note that parameters have different meaning).
+
+
+\membersection{wxString::To8BitData}\label{wxstringto8bitdata}
+
+\constfunc{const char*}{To8BitData}{\void}
+
+Converts the string to an 8-bit string (ANSI builds only).
+
+\constfunc{const wxCharBuffer}{To8BitData}{\void}
+
+Converts the string to an 8-bit string in ISO-8859-1 encoding in the form of
+a wxCharBuffer (Unicode builds only).
+
+This is a convenience method useful when storing binary data in wxString.
+
+\newsince{2.8.4}
+
+\wxheading{See also}
+
+\helpref{From8BitData}{wxstringfrom8bitdata}
+
+
+\membersection{wxString::ToAscii}\label{wxstringtoascii}
+
+\constfunc{const char*}{ToAscii}{\void}
+
+\constfunc{const wxCharBuffer}{ToAscii}{\void}
+
+Converts the string to an ASCII, 7-bit string in the form of
+a wxCharBuffer (Unicode builds only) or a C string (ANSI builds).
+
+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.
-Same as \helpref{Mid}{wxstringmid}.
\membersection{wxString::ToDouble}\label{wxstringtodouble}
-\constfunc{bool}{To}{\param{double}{ *val}}
+\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 \arg{val}) or \false
+if the string does not represent such number (the value of \arg{val} is not
+modified in this case).
+
+\wxheading{See also}
+
+\helpref{wxString::ToLong}{wxstringtolong},\\
+\helpref{wxString::ToULong}{wxstringtoulong}
-Attempts to convert the string to a floating point number. Returns TRUE on
-suceess (the number is stored in the location pointed to by {\it val}) or FALSE
-if the string does not represent such number.
\membersection{wxString::ToLong}\label{wxstringtolong}
-\constfunc{bool}{To}{\param{long}{ *val}}
+\constfunc{bool}{ToLong}{\param{long}{ *val}, \param{int }{base = $10$}}
+
+Attempts to convert the string to a signed integer in base {\it base}. Returns
+\true on success in which case the number is stored in the location
+pointed to by \arg{val} or \false if the string does not represent a
+valid number in the given base (the value of \arg{val} is not modified
+in this case).
+
+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}
-Attempts to convert the string to a signed integer. Returns TRUE on suceess
-(the number is stored in the location pointed to by {\it val}) or FALSE if the
-string does not represent such number.
\membersection{wxString::ToULong}\label{wxstringtoulong}
-\constfunc{bool}{To}{\param{unsigned long}{ *val}}
+\constfunc{bool}{ToULong}{\param{unsigned long}{ *val}, \param{int }{base = $10$}}
+
+Attempts to convert the string to an unsigned integer in base {\it base}.
+Returns \true on success in which case the number is stored in the
+location pointed to by \arg{val} or \false if the string does not
+represent a valid number in the given base (the value of \arg{val} is not
+modified in this case). 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.
+
+\wxheading{See also}
+
+\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::ToUTF8}\label{wxstringtoutf8}
+
+\constfunc{const char*}{ToUTF8}{\void}
+
+\constfunc{const wxCharBuffer}{ToUF8}{\void}
+
+Same as \helpref{utf8\_str}{wxstringutf8str}.
-Attempts to convert the string to an unsigned integer. Returns TRUE on suceess
-(the number is stored in the location pointed to by {\it val}) or FALSE if the
-string does not represent such number.
\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).
+
+This method is deprecated, please use
+\helpref{wxStringBuffer}{wxstringbuffer} or
+\helpref{wxStringBufferLength}{wxstringbufferlength} instead.
+
+
\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.
+This is a wxWidgets 1.xx compatibility function; you should not use it in new code.
+
+
+\membersection{wxString::utf8\_str}\label{wxstringutf8str}
+
+\constfunc{const char*}{utf8\_str}{\void}
+
+\constfunc{const wxCharBuffer}{utf8\_str}{\void}
+
+Converts the strings contents to UTF-8 and returns it either as a temporary
+wxCharBuffer object or as a pointer to the internal string contents in
+UTF-8 build.
+% FIXME-UTF8: link to a topic explaining UTF-8 build here
+
+
+\membersection{wxString::wc\_str}\label{wxstringwcstr}
+
+\constfunc{const wchar\_t*}{wc\_str}{\param{const wxMBConv\&}{ conv}}
+
+\constfunc{const wxWCharBuffer}{wc\_str}{\param{const 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}, \helpref{wchar\_str}{wxstringwcharstr}
+
+\membersection{wxString::wchar\_str}\label{wxstringwcharstr}
+
+\constfunc{wxWritableWCharBuffer}{wchar\_str}{\void}
+
+Returns an object with string data that is implicitly convertible to
+{\tt char*} pointer. Note that changes to the returned buffer may or may
+not be lost (depending on the build) and so this function is only usable for
+passing strings to legacy libraries that don't have const-correct API. Use
+\helpref{wxStringBuffer}{wxstringbuffer} if you want to modify the string.
+
+\wxheading{See also}
+
+\helpref{mb\_str}{wxstringmbstr}, \helpref{wc\_str}{wxstringwcstr},
+\helpref{fn\_str}{wxstringfnstr}, \helpref{c\_str}{wxstringcstr},
+\helpref{char\_str}{wxstringcharstr}
+
+
\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 wxChar *} 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}}
-\func{wxString\&}{operator $=$}{\param{const char*}{ psz}}
-
-\func{wxString\&}{operator $=$}{\param{char}{ c}}
-
-\func{wxString\&}{operator $=$}{\param{const unsigned char*}{ psz}}
+\func{wxString\&}{operator $=$}{\param{const wxChar*}{ psz}}
-\func{wxString\&}{operator $=$}{\param{const wchar\_t*}{ pwz}}
+\func{wxString\&}{operator $=$}{\param{wxChar}{ c}}
Assignment: the effect of each operation is the same as for the corresponding
constructor (see \helpref{wxString constructors}{wxstringconstruct}).
-\membersection{operator wxString::$+$}\label{wxstringoperatorplus}
-Concatenation: all these operators return a new strign equal to the sum of the
-operands.
+\membersection{wxString::operator $+$}\label{wxstringoperatorplus}
+
+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 wxString\&}{ x}, \param{const char*}{ y}}
+\func{wxString}{operator $+$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ y}}
+
+\func{wxString}{operator $+$}{\param{const wxString\&}{ x}, \param{wxChar}{ y}}
-\func{wxString}{operator $+$}{\param{const wxString\&}{ x}, \param{char}{ y}}
+\func{wxString}{operator $+$}{\param{const wxChar*}{ 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}}
-\func{void}{operator $+=$}{\param{const char*}{ psz}}
+\func{void}{operator $+=$}{\param{const wxChar*}{ psz}}
-\func{void}{operator $+=$}{\param{char}{ c}}
+\func{void}{operator $+=$}{\param{wxChar}{ c}}
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}}
-\func{wxString\&}{operator \cinsert}{\param{const char*}{ psz}}
+\func{wxString\&}{operator \cinsert}{\param{const wxChar*}{ psz}}
-\func{wxString\&}{operator \cinsert}{\param{char }{ch}}
+\func{wxString\&}{operator \cinsert}{\param{wxChar }{ch}}
Same as $+=$.
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}
+\membersection{wxString::operator const wxChar*}\label{wxstringoperatorconstcharpt}
+
+\constfunc{}{operator const wxChar*}{\void}
Implicit conversion to a C string.
+
\membersection{Comparison operators}\label{wxstringcomparison}
\func{bool}{operator $==$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}}
-\func{bool}{operator $==$}{\param{const wxString\&}{ x}, \param{const char*}{ t}}
+\func{bool}{operator $==$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}}
\func{bool}{operator $!=$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}}
-\func{bool}{operator $!=$}{\param{const wxString\&}{ x}, \param{const char*}{ t}}
+\func{bool}{operator $!=$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}}
\func{bool}{operator $>$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}}
-\func{bool}{operator $>$}{\param{const wxString\&}{ x}, \param{const char*}{ t}}
+\func{bool}{operator $>$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}}
\func{bool}{operator $>=$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}}
-\func{bool}{operator $>=$}{\param{const wxString\&}{ x}, \param{const char*}{ t}}
+\func{bool}{operator $>=$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}}
\func{bool}{operator $<$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}}
-\func{bool}{operator $<$}{\param{const wxString\&}{ x}, \param{const char*}{ t}}
+\func{bool}{operator $<$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}}
\func{bool}{operator $<=$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}}
-\func{bool}{operator $<=$}{\param{const wxString\&}{ x}, \param{const char*}{ t}}
+\func{bool}{operator $<=$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}}
\wxheading{Remarks}
These comparisons are case-sensitive.
+
+\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 of forgetting to restore
+the string to the usable state later.
+
+For example, assuming you have a low-level OS function called
+{\tt GetMeaningOfLifeAsString(char *)} returning the value in the provided
+buffer (which must be writable, of course) you might call it like this:
+
+\begin{verbatim}
+ wxString theAnswer;
+ GetMeaningOfLifeAsString(wxStringBuffer(theAnswer, 1024));
+ 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.
+
+\wxheading{Derived from}
+
+None
+
+\wxheading{Include files}
+
+<wx/string.h>
+
+\latexignore{\rtfignore{\wxheading{Members}}}
+
+
+\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. Basically, this
+is equivalent to calling \helpref{GetWriteBuf}{wxstringgetwritebuf} and
+saving the result.
+
+
+\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 *}\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