// Purpose: interface of wxStringBuffer, wxString
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
*/
wxString(const wxString& stringSrc);
+ /**
+ Construct a string consisting of @a nRepeat copies of ch.
+ */
+ wxString(wxUniChar ch, size_t nRepeat = 1);
+
+ /**
+ Construct a string consisting of @a nRepeat copies of ch.
+ */
+ wxString(wxUniCharRef ch, size_t nRepeat = 1);
+
+ /**
+ Construct a string consisting of @a nRepeat copies of ch
+ converted to Unicode using the current locale encoding.
+ */
+ wxString(char ch, size_t nRepeat = 1);
+
+ /**
+ Construct a string consisting of @a nRepeat copies of ch.
+ */
+ wxString(wchar_t ch, size_t nRepeat = 1);
/**
Constructs a string from the string literal @a psz using
/**
Constructs a string from @a str using the using the current locale encoding
to convert it to Unicode (wxConvLibc).
+
+ @see ToStdString()
*/
wxString(const std::string& str);
/**
Constructs a string from @a str.
+
+ @see ToStdWstring()
*/
wxString(const std::wstring& str);
void SetChar(size_t n, wxUniChar ch);
/**
- Returns a the last character.
+ Returns the last character.
This is a wxWidgets 1.xx compatibility function;
you should not use it in new code.
const wxScopedCharBuffer utf8_str() const;
/**
- Converts the strings contents to the wide character represention
+ Converts the strings contents to the wide character representation
and returns it as a temporary wxWCharBuffer object (Unix and OS X)
or returns a pointer to the internal string contents in wide character
mode (Windows).
@see wxString::From8BitData()
*/
- const char* To8BitData() const;
-
- /**
- @overload
- */
- const wxCharBuffer To8BitData() const;
+ const wxScopedCharBuffer To8BitData() const;
/**
Converts the string to an ASCII, 7-bit string in the form of
*/
const wxCharBuffer ToAscii() const;
+ /**
+ Return the string as an std::string in current locale encoding.
+
+ Note that if the conversion of (Unicode) string contents to the current
+ locale fails, the return string will be empty. Be sure to check for
+ this to avoid silent data loss.
+
+ Instead of using this function it's also possible to write
+ @code
+ std::string s;
+ wxString wxs;
+ ...
+ s = std::string(wxs);
+ @endcode
+ but using ToStdString() may make the code more clear.
+
+ @since 2.9.1
+ */
+ std::string ToStdString() const;
+
+ /**
+ Return the string as an std::wstring.
+
+ Unlike ToStdString(), there is no danger of data loss when using this
+ function.
+
+ @since 2.9.1
+ */
+ std::wstring ToStdWstring() const;
+
/**
Same as utf8_str().
*/
wxString& operator<<(wchar_t ch);
wxString& operator<<(const wxCharBuffer& s);
wxString& operator<<(const wxWCharBuffer& s);
+ wxString& operator<<(wxUniChar ch);
wxString& operator<<(wxUniCharRef ch);
wxString& operator<<(unsigned int ui);
wxString& operator<<(long l);
/**
Gets all characters before the first occurrence of @e ch.
Returns the whole string if @a ch is not found.
+
+ @param ch The character to look for.
+ @param rest Filled with the part of the string following the first
+ occurrence of @a ch or cleared if it was not found. The same string
+ is returned by AfterFirst() but it is more efficient to use this
+ output parameter if both the "before" and "after" parts are needed
+ than calling both functions one after the other. This parameter is
+ available in wxWidgets version 2.9.2 and later only.
+ @return Part of the string before the first occurrence of @a ch.
*/
- wxString BeforeFirst(wxUniChar ch) const;
+ wxString BeforeFirst(wxUniChar ch, wxString *rest = NULL) const;
/**
Gets all characters before the last occurrence of @e ch.
Returns the empty string if @a ch is not found.
+
+ @param ch The character to look for.
+ @param rest Filled with the part of the string following the last
+ occurrence of @a ch or the copy of this string if it was not found.
+ The same string is returned by AfterLast() but it is more efficient
+ to use this output parameter if both the "before" and "after" parts
+ are needed than calling both functions one after the other. This
+ parameter is available in wxWidgets version 2.9.2 and later only.
+ @return Part of the string before the last occurrence of @a ch.
*/
- wxString BeforeLast(wxUniChar ch) const;
+ wxString BeforeLast(wxUniChar ch, wxString *rest = NULL) const;
//@}
@member_group_name{numconv, Conversion to numbers}
The string provides functions for conversion to signed and unsigned integer and
- floating point numbers. All functions take a pointer to the variable to
- put the numeric value in and return @true if the @b entire string could be
- converted to a number.
- */
+ floating point numbers.
+
+ All functions take a pointer to the variable to put the numeric value
+ in and return @true if the @b entire string could be converted to a
+ number. Notice if there is a valid number in the beginning of the
+ string, it is returned in the output parameter even if the function
+ returns @false because there is more text following it.
+ */
//@{
/**
Returns @true on success (the number is stored in the location pointed to by
@a val) or @false if the string does not represent such number (the value of
- @a val is not modified in this case).
+ @a val may still be modified in this case).
Note that unlike ToCDouble() this function uses a localized version of
@c wxStrtod() and thus needs as decimal point (and thousands separator) the
you are sure that this string contains a floating point number formatted with
the rules of the locale currently in use (see wxLocale).
- Refer to the docs of the standard function @c strtod() for more details about
- the supported syntax.
+ Also notice that even this function is locale-specific it does not
+ support strings with thousands separators in them, even if the current
+ locale uses digits grouping. You may use wxNumberFormatter::FromString()
+ to parse such strings.
+
+ Please refer to the documentation of the standard function @c strtod()
+ for more details about the supported syntax.
@see ToCDouble(), ToLong(), ToULong()
*/
bool ToDouble(double* val) const;
/**
+ Variant of ToDouble() always working in "C" locale.
+
Works like ToDouble() but unlike it this function expects the floating point
number to be formatted always with the rules dictated by the "C" locale
(in particular, the decimal point must be a dot), independently from the
Returns @true on success in which case the number is stored in the location
pointed to by @a val or @false if the string does not represent a
- valid number in the given base (the value of @a val is not modified
- in this case).
+ valid number in the given base (the value of @a val may still be
+ modified in this case).
The value of @a base must be comprised between 2 and 36, inclusive, or
be a special value 0 which means that the usual rules of @c C numbers are
that this string contains an integer number formatted with
the rules of the locale currently in use (see wxLocale).
- Refer to the docs of the standard function @c strtol() for more details about
- the supported syntax.
+ As with ToDouble(), this function does not support strings containing
+ thousands separators even if the current locale uses digits grouping.
+ You may use wxNumberFormatter::FromString() to parse such strings.
+
+ Please refer to the documentation of the standard function @c strtol()
+ for more details about the supported syntax.
@see ToCDouble(), ToDouble(), ToULong()
*/
bool ToLong(long* val, int base = 10) const;
/**
+ Variant of ToLong() always working in "C" locale.
+
Works like ToLong() but unlike it this function expects the integer
number to be formatted always with the rules dictated by the "C" locale,
independently from the current application-wide locale (see wxLocale).
Returns @true on success in which case the number is stored in the
location pointed to by @a val or @false if the string does not
- represent a valid number in the given base (the value of @a val is not
- modified in this case).
+ represent a valid number in the given base (the value of @a val may
+ still be modified in this case).
Please notice that this function behaves in the same way as the standard
@c strtoul() and so it simply converts negative numbers to unsigned
bool ToULong(unsigned long* val, int base = 10) const;
/**
+ Variant of ToULong() always working in "C" locale.
+
Works like ToULong() but unlike it this function expects the integer
number to be formatted always with the rules dictated by the "C" locale,
independently from the current application-wide locale (see wxLocale).
bool ToCULong(unsigned long* val, int base = 10) const;
/**
- This is exactly the same as ToULong() but works with 64
- bit integer numbers.
+ This is exactly the same as ToULong() but works with 64 bit integer
+ numbers.
+
Please see ToLongLong() for additional remarks.
*/
bool ToULongLong(wxULongLong_t* val, int base = 10) const;
Note that if @c wxUSE_PRINTF_POS_PARAMS is set to 1, then this function supports
Unix98-style positional parameters:
+ @code
+ 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"
+ @endcode
+
@note This function will use a safe version of @e vsprintf() (usually called
@e vsnprintf()) whenever available to always allocate the buffer of correct
size. Unfortunately, this function is not available on all platforms and the
/**
@member_group_name{iter, Iterator interface}
- These methods return iterators to the beginnnig or end of the string.
+ These methods return iterators to the beginning or end of the string.
Please see any STL reference (e.g. http://www.cppreference.com/wiki/string/start)
for their documentation.
// STATIC FUNCTIONS
- // Keep these functions separed from the other groups or Doxygen gets confused
+ // Keep these functions separated from the other groups or Doxygen gets confused
// -----------------------------------------------------------------------------
/**
static wxString FromAscii(char c);
//@}
+ /**
+ Returns a string with the textual representation of the number in C
+ locale.
+
+ Unlike FromDouble() the string returned by this function always uses
+ the period character as decimal separator, independently of the current
+ locale. Otherwise its behaviour is identical to the other function.
+
+ @since 2.9.1
+
+ @see ToCDouble()
+ */
+ static wxString FromCDouble(double val, int precision = -1);
+
+ /**
+ Returns a string with the textual representation of the number.
+
+ For the default value of @a precision, this function behaves as a
+ simple wrapper for @code wxString::Format("%g", val) @endcode. If @a
+ precision is positive (or zero), the @c %.Nf format is used with the
+ given precision value.
+
+ Notice that the string returned by this function uses the decimal
+ separator appropriate for the current locale, e.g. @c "," and not a
+ period in French locale. Use FromCDouble() if this is unwanted.
+
+ @param val
+ The value to format.
+ @param precision
+ The number of fractional digits to use in or -1 to use the most
+ appropriate format. This parameter is new in wxWidgets 2.9.2.
+
+ @since 2.9.1
+
+ @see ToDouble()
+ */
+ static wxString FromDouble(double val, int precision = -1);
+
//@{
/**
Converts C string encoded in UTF-8 to wxString.
@code
wxString theAnswer;
- wxStringBuffer theAnswerBuffer(theAnswer, 1024);
+ wxStringBufferLength theAnswerBuffer(theAnswer, 1024);
int nLength = GetMeaningOfLifeAsString(theAnswerBuffer);
theAnswerBuffer.SetLength(nLength);
if ( theAnswer != "42" )
wxLogError("Something is very wrong!");
@endcode
- @todo
- the example above does not make use of wxStringBufferLength??
-
Note that the exact usage of this depends on whether or 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
projects / wxWidgets.git / blobdiff