+\latexignore{\rtfignore{\wxheading{Function groups}}}
+
+\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{wxString}{wxstringconstruct}\\
+\helpref{operator $=$}{wxstringoperatorassign}\\
+\helpref{\destruct{wxString}}{wxstringdestruct}
+
+\membersection{String length}\label{lengthfunctionsinwxstring}
+
+These functions return the string length and check whether the string is empty
+or empty it.
+
+\helpref{Len}{wxstringlen}\\
+\helpref{IsEmpty}{wxstringisempty}\\
+\helpref{operator!}{wxstringoperatornot}\\
+\helpref{Empty}{wxstringempty}\\
+\helpref{Clear}{wxstringclear}
+
+\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 provoke an assert
+failure in \helpref{debug build}{debuggingoverview}, but no checks are done in
+release builds.
+
+This section also contains both implicit and explicit conversions to C style
+strings. Although implicit conversion is quite convenient, it is advised to use
+explicit \helpref{c\_str()}{wxstringcstr} method for the sake of clarity. Also
+see \helpref{overview}{wxstringadvices} for the cases where it is necessary to
+use it.
+
+\helpref{GetChar}{wxstringgetchar}\\
+\helpref{GetWritableChar}{wxstringgetwritablechar}\\
+\helpref{SetChar}{wxstringsetchar}\\
+\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}\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
+should be converted to a wxString first.
+
+\helpref{operator \cinsert}{wxstringoperatorout}\\
+\helpref{operator $+=$}{wxstringplusequal}\\
+\helpref{operator $+$}{wxstringoperatorplus}\\
+\helpref{Append}{wxstringappend}\\
+\helpref{Prepend}{wxstringprepend}
+
+\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 {\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{StartsWith}{wxstringstartswith}\\
+\helpref{EndsWith}{wxstringendswith}
+
+\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
+substring.
+
+\helpref{Mid}{wxstringmid}\\
+\helpref{operator()}{wxstringoperatorparenth}\\
+\helpref{Left}{wxstringleft}\\
+\helpref{Right}{wxstringright}\\
+\helpref{BeforeFirst}{wxstringbeforefirst}\\
+\helpref{BeforeLast}{wxstringbeforelast}\\
+\helpref{AfterFirst}{wxstringafterfirst}\\
+\helpref{AfterLast}{wxstringafterlast}\\
+\helpref{StartsWith}{wxstringstartswith}\\
+\helpref{EndsWith}{wxstringendswith}
+
+
+\membersection{Case conversion}\label{caseconversioninwxstring}
+
+The MakeXXX() variants modify the string in place, while the other functions
+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{Upper}{wxstringupper}\\
+\helpref{MakeLower}{wxstringmakelower}\\
+\helpref{Lower}{wxstringlower}
+
+\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}\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
+converted to a number.
+
+\helpref{ToLong}{wxstringtolong}\\
+\helpref{ToULong}{wxstringtoulong}\\
+\helpref{ToDouble}{wxstringtodouble}
+
+\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{Format}{wxstringformat} function allows to use simply append
+formatted value to a string:
+
+\begin{verbatim}
+ // the following 2 snippets are equivalent
+
+ wxString s = "...";
+ s += wxString::Format("%d", n);
+
+ wxString s;
+ s.Printf("...%d", n);
+\end{verbatim}
+
+\helpref{Format}{wxstringformat}\\
+\helpref{FormatV}{wxstringformatv}\\
+\helpref{Printf}{wxstringprintf}\\
+\helpref{PrintfV}{wxstringprintfv}\\
+\helpref{operator \cinsert}{wxstringoperatorout}
+
+\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{Alloc}{wxstringalloc}\\
+\helpref{Shrink}{wxstringshrink}\\
+\helpref{GetWriteBuf}{wxstringgetwritebuf}\\
+\helpref{UngetWriteBuf}{wxstringungetwritebuf}
+
+\membersection{Miscellaneous}\label{miscellaneousinwxstring}
+
+Other string functions.
+
+\helpref{Trim}{wxstringtrim}\\
+\helpref{Pad}{wxstringpad}\\
+\helpref{Truncate}{wxstringtruncate}
+
+\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{sprintf}{wxstringsprintf}\\
+\helpref{CompareTo}{wxstringcompareto}\\
+\helpref{Length}{wxstringlength}\\
+\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{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
+their documentation.
+
+\begin{verbatim}
+ // take nLen chars starting at nPos
+ wxString(const wxString& str, size_t nPos, size_t nLen);
+ // take all characters from pStart to pEnd (poor man's iterators)
+ wxString(const void *pStart, const void *pEnd);
+
+ // lib.string.capacity
+ // return the length of the string
+ size_t size() const;
+ // return the length of the string
+ size_t length() const;
+ // return the maximum size of the string
+ size_t max_size() const;
+ // resize the string, filling the space with c if c != 0
+ void resize(size_t nSize, char ch = '\0');
+ // delete the contents of the string
+ void clear();
+ // returns true if the string is empty
+ bool empty() const;
+
+ // lib.string.access
+ // return the character at position n
+ char at(size_t n) const;
+ // returns the writable character at position n
+ char& at(size_t n);
+
+ // lib.string.modifiers
+ // append a string
+ wxString& append(const wxString& str);
+ // append elements str[pos], ..., str[pos+n]
+ wxString& append(const wxString& str, size_t pos, size_t n);
+ // append first n (or all if n == npos) characters of sz
+ wxString& append(const char *sz, size_t n = npos);
+
+ // append n copies of ch
+ wxString& append(size_t n, char ch);
+
+ // same as `this_string = str'
+ wxString& assign(const wxString& str);
+ // same as ` = str[pos..pos + n]
+ wxString& assign(const wxString& str, size_t pos, size_t n);
+ // same as `= first n (or all if n == npos) characters of sz'
+ wxString& assign(const char *sz, size_t n = npos);
+ // same as `= n copies of ch'
+ wxString& assign(size_t n, char ch);
+
+ // insert another string
+ wxString& insert(size_t nPos, const wxString& str);
+ // insert n chars of str starting at nStart (in str)
+ wxString& insert(size_t nPos, const wxString& str, size_t nStart, size_t n);
+
+ // insert first n (or all if n == npos) characters of sz
+ wxString& insert(size_t nPos, const char *sz, size_t n = npos);
+ // insert n copies of ch
+ wxString& insert(size_t nPos, size_t n, char ch);
+
+ // delete characters from nStart to nStart + nLen
+ wxString& erase(size_t nStart = 0, size_t nLen = npos);
+
+ // replaces the substring of length nLen starting at nStart
+ wxString& replace(size_t nStart, size_t nLen, const char* sz);
+ // replaces the substring with nCount copies of ch
+ wxString& replace(size_t nStart, size_t nLen, size_t nCount, char ch);
+ // replaces a substring with another substring
+ wxString& replace(size_t nStart, size_t nLen,
+ const wxString& str, size_t nStart2, size_t nLen2);
+ // replaces the substring with first nCount chars of sz
+ wxString& replace(size_t nStart, size_t nLen,
+ const char* sz, size_t nCount);
+
+ // swap two strings
+ void swap(wxString& str);
+
+ // All find() functions take the nStart argument which specifies the
+ // position to start the search on, the default value is 0. All functions
+ // return npos if there were no match.
+
+ // find a substring
+ size_t find(const wxString& str, size_t nStart = 0) const;
+
+ // find first n characters of sz
+ size_t find(const char* sz, size_t nStart = 0, size_t n = npos) const;
+
+ // 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(const wxString& str, size_t nStart = npos) const;
+
+ // as find, but from the end
+ size_t rfind(const char* sz, size_t nStart = npos,
+ size_t n = npos) const;
+ // as find, but from the end
+ size_t rfind(char ch, size_t nStart = npos) const;
+
+ // find first/last occurrence of any character in the set
+
+ //
+ size_t find_first_of(const wxString& str, size_t nStart = 0) const;
+ //
+ size_t find_first_of(const char* sz, size_t nStart = 0) const;
+ // same as find(char, size_t)
+ size_t find_first_of(char c, size_t nStart = 0) const;
+ //
+ size_t find_last_of (const wxString& str, size_t nStart = npos) const;
+ //
+ size_t find_last_of (const char* s, size_t nStart = npos) const;
+ // same as rfind(char, size_t)
+ size_t find_last_of (char c, size_t nStart = npos) const;
+
+ // 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;
+ //
+ size_t find_first_not_of(const char* s, size_t nStart = 0) const;
+ //
+ size_t find_first_not_of(char ch, size_t nStart = 0) const;
+ //
+ size_t find_last_not_of(const wxString& str, size_t nStart=npos) const;
+ //
+ size_t find_last_not_of(const char* s, size_t nStart = npos) const;
+ //
+ size_t find_last_not_of(char ch, size_t nStart = npos) const;
+
+ // All compare functions return a negative, zero or positive value
+ // if the [sub]string is less, equal or greater than the compare() argument.
+
+ // just like strcmp()
+ int compare(const wxString& str) const;
+ // comparison with a substring
+ int compare(size_t nStart, size_t nLen, const wxString& str) const;
+ // comparison of 2 substrings
+ int compare(size_t nStart, size_t nLen,
+ const wxString& str, size_t nStart2, size_t nLen2) const;
+ // just like strcmp()
+ int compare(const char* sz) const;
+ // substring comparison with first nCount characters of sz
+ int compare(size_t nStart, size_t nLen,
+ const char* sz, size_t nCount = npos) const;
+
+ // substring extraction
+ wxString substr(size_t nStart = 0, size_t nLen = npos) const;
+\end{verbatim}
+
+%%%%% MEMBERS HERE %%%%%
+\helponly{\insertatlevel{2}{
+
+\wxheading{Members}
+
+}}
projects / wxWidgets.git / blobdiff