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1 | \section{\class{wxString}}\label{wxstring} |
2 | ||
40b480c3 | 3 | wxString is a class representing a character string. Please see the |
b0b96f66 VZ |
4 | \helpref{wxString overview}{wxstringoverview} for more information about it. |
5 | ||
6 | As explained there, wxString implements most of the methods of the std::string | |
7 | class. | |
8 | These standard functions are not documented in this manual, please see the | |
9 | \urlref{STL documentation}{http://www.cppreference.com/cppstl.html}). | |
99f09bc1 | 10 | The behaviour of all these functions is identical to the behaviour described |
b0b96f66 | 11 | there. |
99f09bc1 | 12 | |
0aa35d19 VZ |
13 | You may notice that wxString sometimes has many functions which do the same |
14 | thing like, for example, \helpref{Length()}{wxstringlength}, | |
15 | \helpref{Len()}{wxstringlen} and {\tt length()} which all return the string | |
16 | length. In all cases of such duplication the {\tt std::string}-compatible | |
17 | method ({\tt length()} in this case, always the lowercase version) should be | |
fc2171bd | 18 | used as it will ensure smoother transition to {\tt std::string} when wxWidgets |
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19 | starts using it instead of wxString. |
20 | ||
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21 | \wxheading{Derived from} |
22 | ||
23 | None | |
a660d684 | 24 | |
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25 | \wxheading{Include files} |
26 | ||
27 | <wx/string.h> | |
28 | ||
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29 | \wxheading{Library} |
30 | ||
31 | \helpref{wxBase}{librarieslist} | |
32 | ||
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33 | \wxheading{Predefined objects} |
34 | ||
35 | Objects: | |
36 | ||
37 | {\bf wxEmptyString} | |
38 | ||
b3324be2 JS |
39 | \wxheading{See also} |
40 | ||
b0b96f66 | 41 | \helpref{wxString overview}{wxstringoverview}, \helpref{Unicode overview}{unicode} |
a660d684 | 42 | |
99f09bc1 VZ |
43 | \latexignore{\rtfignore{\wxheading{Function groups}}} |
44 | ||
d6718dd1 | 45 | |
15d83f72 | 46 | \membersection{Constructors and assignment operators}\label{constructorsinwxstring} |
99f09bc1 | 47 | |
2edb0bde | 48 | A string may be constructed either from a C string, (some number of copies of) |
99f09bc1 VZ |
49 | a single character or a wide (UNICODE) string. For all constructors (except the |
50 | default which creates an empty string) there is also a corresponding assignment | |
51 | operator. | |
52 | ||
53 | \helpref{wxString}{wxstringconstruct}\\ | |
54 | \helpref{operator $=$}{wxstringoperatorassign}\\ | |
55 | \helpref{\destruct{wxString}}{wxstringdestruct} | |
56 | ||
d6718dd1 | 57 | |
15d83f72 | 58 | \membersection{String length}\label{lengthfunctionsinwxstring} |
99f09bc1 VZ |
59 | |
60 | These functions return the string length and check whether the string is empty | |
61 | or empty it. | |
62 | ||
63 | \helpref{Len}{wxstringlen}\\ | |
64 | \helpref{IsEmpty}{wxstringisempty}\\ | |
65 | \helpref{operator!}{wxstringoperatornot}\\ | |
66 | \helpref{Empty}{wxstringempty}\\ | |
67 | \helpref{Clear}{wxstringclear} | |
68 | ||
d6718dd1 | 69 | |
15d83f72 | 70 | \membersection{Character access}\label{characteraccessinwxstring} |
99f09bc1 VZ |
71 | |
72 | Many functions in this section take a character index in the string. As with C | |
73 | strings and/or arrays, the indices start from $0$, so the first character of a | |
74 | string is string[$0$]. Attempt to access a character beyond the end of the | |
2edb0bde | 75 | string (which may be even $0$ if the string is empty) will provoke an assert |
99f09bc1 VZ |
76 | failure in \helpref{debug build}{debuggingoverview}, but no checks are done in |
77 | release builds. | |
78 | ||
79 | This section also contains both implicit and explicit conversions to C style | |
80 | strings. Although implicit conversion is quite convenient, it is advised to use | |
81 | explicit \helpref{c\_str()}{wxstringcstr} method for the sake of clarity. Also | |
fd34e3a5 | 82 | see \helpref{overview}{wxstringadvices} for the cases where it is necessary to |
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83 | use it. |
84 | ||
85 | \helpref{GetChar}{wxstringgetchar}\\ | |
86 | \helpref{GetWritableChar}{wxstringgetwritablechar}\\ | |
87 | \helpref{SetChar}{wxstringsetchar}\\ | |
88 | \helpref{Last}{wxstringlast}\\ | |
89 | \helpref{operator []}{wxstringoperatorbracket}\\ | |
90 | \helpref{c\_str}{wxstringcstr}\\ | |
bd8465ff VS |
91 | \helpref{mb\_str}{wxstringmbstr}\\ |
92 | \helpref{wc\_str}{wxstringwcstr}\\ | |
93 | \helpref{fn\_str}{wxstringfnstr}\\ | |
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94 | \helpref{operator const char*}{wxstringoperatorconstcharpt} |
95 | ||
d6718dd1 | 96 | |
15d83f72 | 97 | \membersection{Concatenation}\label{concatenationinwxstring} |
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98 | |
99 | Anything may be concatenated (appended to) with a string. However, you can't | |
100 | append something to a C string (including literal constants), so to do this it | |
101 | should be converted to a wxString first. | |
102 | ||
103 | \helpref{operator \cinsert}{wxstringoperatorout}\\ | |
104 | \helpref{operator $+=$}{wxstringplusequal}\\ | |
105 | \helpref{operator $+$}{wxstringoperatorplus}\\ | |
106 | \helpref{Append}{wxstringappend}\\ | |
107 | \helpref{Prepend}{wxstringprepend} | |
108 | ||
d6718dd1 | 109 | |
15d83f72 | 110 | \membersection{Comparison}\label{comparisoninwxstring} |
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111 | |
112 | The default comparison function \helpref{Cmp}{wxstringcmp} is case-sensitive and | |
113 | so is the default version of \helpref{IsSameAs}{wxstringissameas}. For case | |
114 | insensitive comparisons you should use \helpref{CmpNoCase}{wxstringcmpnocase} or | |
115 | give a second parameter to IsSameAs. This last function is may be more | |
116 | convenient if only equality of the strings matters because it returns a boolean | |
b0b96f66 | 117 | \true value if the strings are the same and not 0 (which is usually false in C) |
f6bcfd97 | 118 | as {\tt Cmp()} does. |
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119 | |
120 | \helpref{Matches}{wxstringmatches} is a poor man's regular expression matcher: | |
121 | it only understands '*' and '?' metacharacters in the sense of DOS command line | |
122 | interpreter. | |
123 | ||
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124 | \helpref{StartsWith}{wxstringstartswith} is helpful when parsing a line of |
125 | text which should start with some predefined prefix and is more efficient than | |
2edb0bde | 126 | doing direct string comparison as you would also have to precalculate the |
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127 | length of the prefix then. |
128 | ||
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129 | \helpref{Cmp}{wxstringcmp}\\ |
130 | \helpref{CmpNoCase}{wxstringcmpnocase}\\ | |
131 | \helpref{IsSameAs}{wxstringissameas}\\ | |
f6bcfd97 | 132 | \helpref{Matches}{wxstringmatches}\\ |
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133 | \helpref{StartsWith}{wxstringstartswith}\\ |
134 | \helpref{EndsWith}{wxstringendswith} | |
99f09bc1 | 135 | |
d6718dd1 | 136 | |
15d83f72 | 137 | \membersection{Substring extraction}\label{substringextractioninwxstring} |
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138 | |
139 | These functions allow to extract substring from this string. All of them don't | |
140 | modify the original string and return a new string containing the extracted | |
141 | substring. | |
142 | ||
143 | \helpref{Mid}{wxstringmid}\\ | |
144 | \helpref{operator()}{wxstringoperatorparenth}\\ | |
145 | \helpref{Left}{wxstringleft}\\ | |
146 | \helpref{Right}{wxstringright}\\ | |
147 | \helpref{BeforeFirst}{wxstringbeforefirst}\\ | |
148 | \helpref{BeforeLast}{wxstringbeforelast}\\ | |
149 | \helpref{AfterFirst}{wxstringafterfirst}\\ | |
f6bcfd97 | 150 | \helpref{AfterLast}{wxstringafterlast}\\ |
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151 | \helpref{StartsWith}{wxstringstartswith}\\ |
152 | \helpref{EndsWith}{wxstringendswith} | |
153 | ||
99f09bc1 | 154 | |
d6718dd1 | 155 | |
15d83f72 | 156 | \membersection{Case conversion}\label{caseconversioninwxstring} |
99f09bc1 VZ |
157 | |
158 | The MakeXXX() variants modify the string in place, while the other functions | |
2edb0bde | 159 | return a new string which contains the original text converted to the upper or |
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160 | lower case and leave the original string unchanged. |
161 | ||
162 | \helpref{MakeUpper}{wxstringmakeupper}\\ | |
163 | \helpref{Upper}{wxstringupper}\\ | |
164 | \helpref{MakeLower}{wxstringmakelower}\\ | |
165 | \helpref{Lower}{wxstringlower} | |
166 | ||
d6718dd1 | 167 | |
15d83f72 | 168 | \membersection{Searching and replacing}\label{searchingandreplacinginwxstring} |
99f09bc1 | 169 | |
40b480c3 | 170 | These functions replace the standard {\it strchr()} and {\it strstr()} |
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171 | functions. |
172 | ||
173 | \helpref{Find}{wxstringfind}\\ | |
174 | \helpref{Replace}{wxstringreplace} | |
175 | ||
d6718dd1 | 176 | |
15d83f72 | 177 | \membersection{Conversion to numbers}\label{conversiontonumbersinwxstring} |
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178 | |
179 | The string provides functions for conversion to signed and unsigned integer and | |
180 | floating point numbers. All three functions take a pointer to the variable to | |
b0b96f66 | 181 | put the numeric value in and return \true if the {\bf entire} string could be |
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182 | converted to a number. |
183 | ||
184 | \helpref{ToLong}{wxstringtolong}\\ | |
b0b96f66 | 185 | \helpref{ToLongLong}{wxstringtolonglong}\\ |
cd0b1709 | 186 | \helpref{ToULong}{wxstringtoulong}\\ |
b0b96f66 | 187 | \helpref{ToULongLong}{wxstringtoulonglong}\\ |
cd0b1709 VZ |
188 | \helpref{ToDouble}{wxstringtodouble} |
189 | ||
d6718dd1 | 190 | |
15d83f72 | 191 | \membersection{Writing values into the string}\label{writingintostringinwxstring} |
99f09bc1 VZ |
192 | |
193 | Both formatted versions (\helpref{Printf}{wxstringprintf}) and stream-like | |
341e7d28 VZ |
194 | insertion operators exist (for basic types only). Additionally, the |
195 | \helpref{Format}{wxstringformat} function allows to use simply append | |
196 | formatted value to a string: | |
99f09bc1 | 197 | |
341e7d28 VZ |
198 | \begin{verbatim} |
199 | // the following 2 snippets are equivalent | |
200 | ||
201 | wxString s = "..."; | |
202 | s += wxString::Format("%d", n); | |
203 | ||
204 | wxString s; | |
205 | s.Printf("...%d", n); | |
206 | \end{verbatim} | |
207 | ||
208 | \helpref{Format}{wxstringformat}\\ | |
209 | \helpref{FormatV}{wxstringformatv}\\ | |
99f09bc1 VZ |
210 | \helpref{Printf}{wxstringprintf}\\ |
211 | \helpref{PrintfV}{wxstringprintfv}\\ | |
40b480c3 | 212 | \helpref{operator \cinsert}{wxstringoperatorout} |
99f09bc1 | 213 | |
d6718dd1 | 214 | |
15d83f72 | 215 | \membersection{Memory management}\label{memoryinwxstring} |
99f09bc1 | 216 | |
2edb0bde | 217 | These are "advanced" functions and they will be needed quite rarely. |
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218 | \helpref{Alloc}{wxstringalloc} and \helpref{Shrink}{wxstringshrink} are only |
219 | interesting for optimization purposes. | |
24ad9318 VS |
220 | \helpref{wxStringBuffer}{wxstringbuffer} |
221 | and \helpref{wxStringBufferLength}{wxstringbufferlength} classes may be very | |
222 | useful when working with some external API which requires the caller to provide | |
223 | a writable buffer. | |
99f09bc1 VZ |
224 | |
225 | \helpref{Alloc}{wxstringalloc}\\ | |
226 | \helpref{Shrink}{wxstringshrink}\\ | |
24ad9318 VS |
227 | \helpref{wxStringBuffer}{wxstringbuffer}\\ |
228 | \helpref{wxStringBufferLength}{wxstringbufferlength} | |
99f09bc1 | 229 | |
d6718dd1 | 230 | |
15d83f72 | 231 | \membersection{Miscellaneous}\label{miscellaneousinwxstring} |
99f09bc1 VZ |
232 | |
233 | Other string functions. | |
234 | ||
235 | \helpref{Trim}{wxstringtrim}\\ | |
b0b96f66 VZ |
236 | \helpref{Truncate}{wxstringtruncate}\\ |
237 | \helpref{Pad}{wxstringpad} | |
99f09bc1 | 238 | |
d6718dd1 | 239 | |
15d83f72 | 240 | \membersection{wxWidgets 1.xx compatibility functions}\label{backwardcompatibilityinwxstring} |
99f09bc1 | 241 | |
fc2171bd | 242 | These functions are deprecated, please consider using new wxWidgets 2.0 |
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243 | functions instead of them (or, even better, std::string compatible variants). |
244 | ||
b0b96f66 | 245 | % keep ordered alphabetically |
99f09bc1 | 246 | \helpref{CompareTo}{wxstringcompareto}\\ |
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247 | \helpref{Contains}{wxstringcontains}\\ |
248 | \helpref{First}{wxstringfirst}\\ | |
99f09bc1 | 249 | \helpref{Freq}{wxstringfreq}\\ |
99f09bc1 | 250 | \helpref{Index}{wxstringindex}\\ |
99f09bc1 | 251 | \helpref{IsAscii}{wxstringisascii}\\ |
b0b96f66 | 252 | \helpref{IsNull}{wxstringisnull}\\ |
99f09bc1 | 253 | \helpref{IsNumber}{wxstringisnumber}\\ |
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254 | \helpref{IsWord}{wxstringisword}\\ |
255 | \helpref{Last}{wxstringlast}\\ | |
256 | \helpref{Length}{wxstringlength}\\ | |
257 | \helpref{LowerCase}{wxstringlowercase}\\ | |
258 | \helpref{Remove}{wxstringremove}\\ | |
259 | \helpref{Strip}{wxstringstrip}\\ | |
260 | \helpref{SubString}{wxstringsubstring}\\ | |
261 | \helpref{UpperCase}{wxstringuppercase} | |
99f09bc1 | 262 | |
d6718dd1 | 263 | |
ed93168b | 264 | \membersection{std::string compatibility functions}\label{wxstringat} |
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265 | |
266 | The supported functions are only listed here, please see any STL reference for | |
267 | their documentation. | |
268 | ||
269 | \begin{verbatim} | |
270 | // take nLen chars starting at nPos | |
271 | wxString(const wxString& str, size_t nPos, size_t nLen); | |
272 | // take all characters from pStart to pEnd (poor man's iterators) | |
273 | wxString(const void *pStart, const void *pEnd); | |
274 | ||
275 | // lib.string.capacity | |
276 | // return the length of the string | |
277 | size_t size() const; | |
278 | // return the length of the string | |
279 | size_t length() const; | |
280 | // return the maximum size of the string | |
281 | size_t max_size() const; | |
282 | // resize the string, filling the space with c if c != 0 | |
283 | void resize(size_t nSize, char ch = '\0'); | |
284 | // delete the contents of the string | |
285 | void clear(); | |
286 | // returns true if the string is empty | |
287 | bool empty() const; | |
288 | ||
289 | // lib.string.access | |
290 | // return the character at position n | |
291 | char at(size_t n) const; | |
292 | // returns the writable character at position n | |
293 | char& at(size_t n); | |
294 | ||
295 | // lib.string.modifiers | |
296 | // append a string | |
297 | wxString& append(const wxString& str); | |
298 | // append elements str[pos], ..., str[pos+n] | |
299 | wxString& append(const wxString& str, size_t pos, size_t n); | |
300 | // append first n (or all if n == npos) characters of sz | |
301 | wxString& append(const char *sz, size_t n = npos); | |
302 | ||
303 | // append n copies of ch | |
304 | wxString& append(size_t n, char ch); | |
305 | ||
306 | // same as `this_string = str' | |
307 | wxString& assign(const wxString& str); | |
308 | // same as ` = str[pos..pos + n] | |
309 | wxString& assign(const wxString& str, size_t pos, size_t n); | |
310 | // same as `= first n (or all if n == npos) characters of sz' | |
311 | wxString& assign(const char *sz, size_t n = npos); | |
312 | // same as `= n copies of ch' | |
313 | wxString& assign(size_t n, char ch); | |
314 | ||
315 | // insert another string | |
316 | wxString& insert(size_t nPos, const wxString& str); | |
317 | // insert n chars of str starting at nStart (in str) | |
318 | wxString& insert(size_t nPos, const wxString& str, size_t nStart, size_t n); | |
319 | ||
320 | // insert first n (or all if n == npos) characters of sz | |
321 | wxString& insert(size_t nPos, const char *sz, size_t n = npos); | |
322 | // insert n copies of ch | |
323 | wxString& insert(size_t nPos, size_t n, char ch); | |
324 | ||
325 | // delete characters from nStart to nStart + nLen | |
326 | wxString& erase(size_t nStart = 0, size_t nLen = npos); | |
327 | ||
328 | // replaces the substring of length nLen starting at nStart | |
329 | wxString& replace(size_t nStart, size_t nLen, const char* sz); | |
330 | // replaces the substring with nCount copies of ch | |
331 | wxString& replace(size_t nStart, size_t nLen, size_t nCount, char ch); | |
332 | // replaces a substring with another substring | |
333 | wxString& replace(size_t nStart, size_t nLen, | |
334 | const wxString& str, size_t nStart2, size_t nLen2); | |
335 | // replaces the substring with first nCount chars of sz | |
336 | wxString& replace(size_t nStart, size_t nLen, | |
337 | const char* sz, size_t nCount); | |
338 | ||
339 | // swap two strings | |
340 | void swap(wxString& str); | |
341 | ||
342 | // All find() functions take the nStart argument which specifies the | |
343 | // position to start the search on, the default value is 0. All functions | |
344 | // return npos if there were no match. | |
345 | ||
346 | // find a substring | |
347 | size_t find(const wxString& str, size_t nStart = 0) const; | |
348 | ||
349 | // find first n characters of sz | |
350 | size_t find(const char* sz, size_t nStart = 0, size_t n = npos) const; | |
351 | ||
7335902d | 352 | // find the first occurrence of character ch after nStart |
99f09bc1 VZ |
353 | size_t find(char ch, size_t nStart = 0) const; |
354 | ||
355 | // rfind() family is exactly like find() but works right to left | |
356 | ||
357 | // as find, but from the end | |
358 | size_t rfind(const wxString& str, size_t nStart = npos) const; | |
359 | ||
360 | // as find, but from the end | |
361 | size_t rfind(const char* sz, size_t nStart = npos, | |
362 | size_t n = npos) const; | |
363 | // as find, but from the end | |
364 | size_t rfind(char ch, size_t nStart = npos) const; | |
365 | ||
7335902d | 366 | // find first/last occurrence of any character in the set |
99f09bc1 VZ |
367 | |
368 | // | |
369 | size_t find_first_of(const wxString& str, size_t nStart = 0) const; | |
370 | // | |
371 | size_t find_first_of(const char* sz, size_t nStart = 0) const; | |
372 | // same as find(char, size_t) | |
373 | size_t find_first_of(char c, size_t nStart = 0) const; | |
374 | // | |
375 | size_t find_last_of (const wxString& str, size_t nStart = npos) const; | |
376 | // | |
377 | size_t find_last_of (const char* s, size_t nStart = npos) const; | |
378 | // same as rfind(char, size_t) | |
379 | size_t find_last_of (char c, size_t nStart = npos) const; | |
380 | ||
7335902d | 381 | // find first/last occurrence of any character not in the set |
99f09bc1 VZ |
382 | |
383 | // | |
384 | size_t find_first_not_of(const wxString& str, size_t nStart = 0) const; | |
385 | // | |
386 | size_t find_first_not_of(const char* s, size_t nStart = 0) const; | |
387 | // | |
388 | size_t find_first_not_of(char ch, size_t nStart = 0) const; | |
389 | // | |
390 | size_t find_last_not_of(const wxString& str, size_t nStart=npos) const; | |
391 | // | |
392 | size_t find_last_not_of(const char* s, size_t nStart = npos) const; | |
393 | // | |
394 | size_t find_last_not_of(char ch, size_t nStart = npos) const; | |
395 | ||
396 | // All compare functions return a negative, zero or positive value | |
397 | // if the [sub]string is less, equal or greater than the compare() argument. | |
398 | ||
399 | // just like strcmp() | |
400 | int compare(const wxString& str) const; | |
401 | // comparison with a substring | |
402 | int compare(size_t nStart, size_t nLen, const wxString& str) const; | |
403 | // comparison of 2 substrings | |
404 | int compare(size_t nStart, size_t nLen, | |
405 | const wxString& str, size_t nStart2, size_t nLen2) const; | |
406 | // just like strcmp() | |
407 | int compare(const char* sz) const; | |
408 | // substring comparison with first nCount characters of sz | |
409 | int compare(size_t nStart, size_t nLen, | |
410 | const char* sz, size_t nCount = npos) const; | |
411 | ||
412 | // substring extraction | |
413 | wxString substr(size_t nStart = 0, size_t nLen = npos) const; | |
414 | \end{verbatim} | |
415 | ||
416 | %%%%% MEMBERS HERE %%%%% | |
417 | \helponly{\insertatlevel{2}{ | |
418 | ||
419 | \wxheading{Members} | |
420 | ||
421 | }} | |
a660d684 | 422 | |
d6718dd1 | 423 | |
a660d684 KB |
424 | \membersection{wxString::wxString}\label{wxstringconstruct} |
425 | ||
b3324be2 | 426 | \func{}{wxString}{\void} |
a660d684 | 427 | |
bd8465ff | 428 | Default constructor. Initializes the string to {\tt ""} (empty string). |
a660d684 | 429 | |
b3324be2 | 430 | \func{}{wxString}{\param{const wxString\&}{ x}} |
a660d684 | 431 | |
b3324be2 | 432 | Copy constructor. |
a660d684 | 433 | |
b0b96f66 | 434 | \func{}{wxString}{\param{wxChar}{ ch}, \param{size\_t}{ n = 1}} |
a660d684 | 435 | |
b3324be2 | 436 | Constructs a string of {\it n} copies of character {\it ch}. |
a660d684 | 437 | |
b0b96f66 | 438 | \func{}{wxString}{\param{const wxChar*}{ psz}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}} |
a660d684 | 439 | |
b3324be2 | 440 | Takes first {\it nLength} characters from the C string {\it psz}. |
bd8465ff | 441 | The default value of {\tt wxSTRING\_MAXLEN} means to take all the string. |
f6bcfd97 BP |
442 | |
443 | Note that this constructor may be used even if {\it psz} points to a buffer | |
444 | with binary data (i.e. containing {\tt NUL} characters) as long as you provide | |
445 | the correct value for {\it nLength}. However, the default form of it works | |
446 | only with strings without intermediate {\tt NUL}s because it uses | |
447 | {\tt strlen()} to calculate the effective length and it would not give correct | |
448 | results otherwise. | |
a660d684 | 449 | |
99f09bc1 | 450 | \func{}{wxString}{\param{const unsigned char*}{ psz}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}} |
a660d684 | 451 | |
b3324be2 | 452 | For compilers using unsigned char: takes first {\it nLength} characters from the C string {\it psz}. |
bd8465ff | 453 | The default value of {\tt wxSTRING\_MAXLEN} means take all the string. |
b0b96f66 | 454 | For ANSI builds only (note the use of {\tt char} instead of {\tt wxChar}). |
a660d684 | 455 | |
bd8465ff VS |
456 | \wxheading{Constructors with conversion} |
457 | ||
b0b96f66 VZ |
458 | The following constructors allow you to construct wxString from a wide string |
459 | in ANSI build or from a C string in Unicode build. | |
bd8465ff | 460 | |
5487ff0f | 461 | \func{}{wxString}{\param{const wchar\_t*}{ psz}, \param{const wxMBConv\&}{ conv}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}} |
bd8465ff VS |
462 | |
463 | Initializes the string from first \arg{nLength} characters of wide string. | |
464 | The default value of {\tt wxSTRING\_MAXLEN} means take all the string. | |
465 | In ANSI build, \arg{conv}'s | |
466 | \helpref{WC2MB}{wxmbconvwc2mb} method is called to | |
467 | convert \arg{psz} to wide string. It is ignored in Unicode build. | |
468 | ||
5487ff0f | 469 | \func{}{wxString}{\param{const char*}{ psz}, \param{const wxMBConv\&}{ conv = wxConvLibc}, \param{size\_t}{ nLength = wxSTRING\_MAXLEN}} |
bd8465ff VS |
470 | |
471 | Initializes the string from first \arg{nLength} characters of C string. | |
472 | The default value of {\tt wxSTRING\_MAXLEN} means take all the string. | |
473 | In Unicode build, \arg{conv}'s | |
474 | \helpref{MB2WC}{wxmbconvmb2wc} method is called to | |
24ad9318 VS |
475 | convert \arg{psz} to wide string (the default converter uses current locale's |
476 | charset). It is ignored in ANSI build. | |
bd8465ff VS |
477 | |
478 | \wxheading{See also} | |
479 | ||
480 | \helpref{wxMBConv classes}{mbconvclasses}, \helpref{mb\_str}{wxstringmbstr}, | |
481 | \helpref{wc\_str}{wxstringwcstr} | |
a660d684 | 482 | |
d6718dd1 | 483 | |
b3324be2 | 484 | \membersection{wxString::\destruct{wxString}}\label{wxstringdestruct} |
a660d684 | 485 | |
b3324be2 | 486 | \func{}{\destruct{wxString}}{\void} |
a660d684 | 487 | |
b3324be2 | 488 | String destructor. Note that this is not virtual, so wxString must not be inherited from. |
a660d684 | 489 | |
d6718dd1 | 490 | |
99f09bc1 VZ |
491 | \membersection{wxString::Alloc}\label{wxstringalloc} |
492 | ||
493 | \func{void}{Alloc}{\param{size\_t}{ nLen}} | |
494 | ||
495 | Preallocate enough space for wxString to store {\it nLen} characters. This function | |
496 | may be used to increase speed when the string is constructed by repeated | |
497 | concatenation as in | |
498 | ||
499 | \begin{verbatim} | |
a660d684 | 500 | |
99f09bc1 VZ |
501 | // delete all vowels from the string |
502 | wxString DeleteAllVowels(const wxString& original) | |
503 | { | |
504 | wxString result; | |
a660d684 | 505 | |
99f09bc1 | 506 | size_t len = original.length(); |
a660d684 | 507 | |
99f09bc1 VZ |
508 | result.Alloc(len); |
509 | ||
510 | for ( size_t n = 0; n < len; n++ ) | |
511 | { | |
512 | if ( strchr("aeuio", tolower(original[n])) == NULL ) | |
513 | result += original[n]; | |
514 | } | |
515 | ||
516 | return result; | |
517 | } | |
518 | ||
519 | \end{verbatim} | |
520 | ||
dbd94b75 | 521 | because it will avoid the need to reallocate string memory many times (in case |
99f09bc1 VZ |
522 | of long strings). Note that it does not set the maximal length of a string - it |
523 | will still expand if more than {\it nLen} characters are stored in it. Also, it | |
524 | does not truncate the existing string (use | |
525 | \helpref{Truncate()}{wxstringtruncate} for this) even if its current length is | |
526 | greater than {\it nLen} | |
527 | ||
d6718dd1 | 528 | |
99f09bc1 | 529 | \membersection{wxString::Append}\label{wxstringappend} |
b3324be2 | 530 | |
b0b96f66 | 531 | \func{wxString\&}{Append}{\param{const wxChar*}{ psz}} |
a660d684 | 532 | |
b3324be2 | 533 | Concatenates {\it psz} to this string, returning a reference to it. |
a660d684 | 534 | |
b0b96f66 | 535 | \func{wxString\&}{Append}{\param{wxChar}{ ch}, \param{int}{ count = 1}} |
a660d684 | 536 | |
b3324be2 JS |
537 | Concatenates character {\it ch} to this string, {\it count} times, returning a reference |
538 | to it. | |
539 | ||
d6718dd1 | 540 | |
99f09bc1 | 541 | \membersection{wxString::AfterFirst}\label{wxstringafterfirst} |
b3324be2 | 542 | |
b0b96f66 | 543 | \constfunc{wxString}{AfterFirst}{\param{wxChar}{ ch}} |
b3324be2 | 544 | |
7335902d | 545 | Gets all the characters after the first occurrence of {\it ch}. |
b3324be2 | 546 | Returns the empty string if {\it ch} is not found. |
a660d684 | 547 | |
d6718dd1 | 548 | |
99f09bc1 | 549 | \membersection{wxString::AfterLast}\label{wxstringafterlast} |
a660d684 | 550 | |
b0b96f66 | 551 | \constfunc{wxString}{AfterLast}{\param{wxChar}{ ch}} |
99f09bc1 | 552 | |
7335902d | 553 | Gets all the characters after the last occurrence of {\it ch}. |
99f09bc1 VZ |
554 | Returns the whole string if {\it ch} is not found. |
555 | ||
d6718dd1 | 556 | |
99f09bc1 VZ |
557 | \membersection{wxString::BeforeFirst}\label{wxstringbeforefirst} |
558 | ||
b0b96f66 | 559 | \constfunc{wxString}{BeforeFirst}{\param{wxChar}{ ch}} |
99f09bc1 | 560 | |
7335902d | 561 | Gets all characters before the first occurrence of {\it ch}. |
99f09bc1 VZ |
562 | Returns the whole string if {\it ch} is not found. |
563 | ||
d6718dd1 | 564 | |
99f09bc1 VZ |
565 | \membersection{wxString::BeforeLast}\label{wxstringbeforelast} |
566 | ||
b0b96f66 | 567 | \constfunc{wxString}{BeforeLast}{\param{wxChar}{ ch}} |
b3324be2 | 568 | |
7335902d | 569 | Gets all characters before the last occurrence of {\it ch}. |
99f09bc1 | 570 | Returns the empty string if {\it ch} is not found. |
a660d684 | 571 | |
d6718dd1 | 572 | |
ed93168b VZ |
573 | \membersection{wxString::c\_str}\label{wxstringcstr} |
574 | ||
f5409ef1 | 575 | \constfunc{const wxChar *}{c\_str}{\void} |
ed93168b | 576 | |
bd8465ff VS |
577 | Returns a pointer to the string data ({\tt const char*} in ANSI build, |
578 | {\tt const wchar\_t*} in Unicode build). | |
579 | ||
ef0f1387 VS |
580 | Note that the returned value is not convertible to {\tt char*} or |
581 | {\tt wchar\_t*}, use \helpref{char\_str}{wxstringcharstr} or | |
582 | \helpref{wchar\_string}{wxstringwcharstr} if you need to pass string value | |
583 | to a function expecting non-const pointer. | |
584 | ||
585 | \wxheading{See also} | |
586 | ||
587 | \helpref{mb\_str}{wxstringmbstr}, \helpref{wc\_str}{wxstringwcstr}, | |
588 | \helpref{fn\_str}{wxstringfnstr}, \helpref{char\_str}{wxstringcharstr}, | |
589 | \helpref{wchar\_string}{wxstringwcharstr} | |
590 | ||
591 | \membersection{wxString::char\_str}\label{wxstringcharstr} | |
592 | ||
5487ff0f | 593 | \constfunc{wxWritableCharBuffer}{char\_str}{\param{const wxMBConv\&}{ conv = wxConvLibc}} |
ef0f1387 VS |
594 | |
595 | Returns an object with string data that is implicitly convertible to | |
596 | {\tt char*} pointer. Note that any change to the returned buffer is lost and so | |
597 | this function is only usable for passing strings to legacy libraries that | |
598 | don't have const-correct API. Use \helpref{wxStringBuffer}{wxstringbuffer} if | |
599 | you want to modify the string. | |
600 | ||
bd8465ff VS |
601 | \wxheading{See also} |
602 | ||
603 | \helpref{mb\_str}{wxstringmbstr}, \helpref{wc\_str}{wxstringwcstr}, | |
ef0f1387 VS |
604 | \helpref{fn\_str}{wxstringfnstr}, \helpref{c\_str}{wxstringcstr}, |
605 | \helpref{wchar\_str}{wxstringwcharstr} | |
ed93168b | 606 | |
d6718dd1 | 607 | |
ed93168b VZ |
608 | \membersection{wxString::Clear}\label{wxstringclear} |
609 | ||
610 | \func{void}{Clear}{\void} | |
611 | ||
612 | Empties the string and frees memory occupied by it. | |
613 | ||
614 | See also: \helpref{Empty}{wxstringempty} | |
615 | ||
d6718dd1 | 616 | |
f7bd2698 JS |
617 | \membersection{wxString::Cmp}\label{wxstringcmp} |
618 | ||
06e317a3 VZ |
619 | \constfunc{int}{Cmp}{\param{const wxString\&}{ s}} |
620 | ||
b0b96f66 | 621 | \constfunc{int}{Cmp}{\param{const wxChar*}{ psz}} |
f7bd2698 JS |
622 | |
623 | Case-sensitive comparison. | |
624 | ||
99f09bc1 | 625 | Returns a positive value if the string is greater than the argument, zero if |
f6bcfd97 | 626 | it is equal to it or a negative value if it is less than the argument (same semantics |
99f09bc1 | 627 | as the standard {\it strcmp()} function). |
f7bd2698 | 628 | |
99f09bc1 | 629 | See also \helpref{CmpNoCase}{wxstringcmpnocase}, \helpref{IsSameAs}{wxstringissameas}. |
f7bd2698 | 630 | |
d6718dd1 | 631 | |
f7bd2698 JS |
632 | \membersection{wxString::CmpNoCase}\label{wxstringcmpnocase} |
633 | ||
06e317a3 VZ |
634 | \constfunc{int}{CmpNoCase}{\param{const wxString\&}{ s}} |
635 | ||
b0b96f66 | 636 | \constfunc{int}{CmpNoCase}{\param{const wxChar*}{ psz}} |
f7bd2698 JS |
637 | |
638 | Case-insensitive comparison. | |
639 | ||
99f09bc1 | 640 | Returns a positive value if the string is greater than the argument, zero if |
f6bcfd97 | 641 | it is equal to it or a negative value if it is less than the argument (same semantics |
99f09bc1 | 642 | as the standard {\it strcmp()} function). |
f7bd2698 | 643 | |
99f09bc1 | 644 | See also \helpref{Cmp}{wxstringcmp}, \helpref{IsSameAs}{wxstringissameas}. |
f7bd2698 | 645 | |
d6718dd1 | 646 | |
99f09bc1 | 647 | \membersection{wxString::CompareTo}\label{wxstringcompareto} |
a660d684 KB |
648 | |
649 | \begin{verbatim} | |
b0b96f66 | 650 | enum wxString::caseCompare {exact, ignoreCase}; |
a660d684 | 651 | \end{verbatim} |
ed93168b | 652 | |
b0b96f66 | 653 | \constfunc{int}{CompareTo}{\param{const wxChar*}{ psz}, \param{caseCompare}{ cmp = exact}} |
a660d684 | 654 | |
b3324be2 | 655 | Case-sensitive comparison. Returns 0 if equal, 1 if greater or -1 if less. |
a660d684 | 656 | |
b0b96f66 VZ |
657 | This is a wxWidgets 1.xx compatibility function; use \helpref{Cmp}{wxstringcmp} instead. |
658 | ||
d6718dd1 | 659 | |
99f09bc1 | 660 | \membersection{wxString::Contains}\label{wxstringcontains} |
a660d684 | 661 | |
99f09bc1 | 662 | \constfunc{bool}{Contains}{\param{const wxString\&}{ str}} |
a660d684 | 663 | |
b0b96f66 VZ |
664 | Returns \true if target appears anywhere in wxString; else \false. |
665 | ||
666 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. | |
a660d684 | 667 | |
d6718dd1 | 668 | |
f7bd2698 | 669 | \membersection{wxString::Empty}\label{wxstringempty} |
a660d684 | 670 | |
f7bd2698 JS |
671 | \func{void}{Empty}{\void} |
672 | ||
ed93168b VZ |
673 | Makes the string empty, but doesn't free memory occupied by the string. |
674 | ||
675 | See also: \helpref{Clear()}{wxstringclear}. | |
f7bd2698 | 676 | |
d6718dd1 | 677 | |
f7bd2698 JS |
678 | \membersection{wxString::Find}\label{wxstringfind} |
679 | ||
8a540c88 | 680 | \constfunc{int}{Find}{\param{wxUniChar}{ ch}, \param{bool}{ fromEnd = false}} |
f7bd2698 | 681 | |
e2622169 | 682 | Searches for the given character. Returns the starting index, or {\tt wxNOT\_FOUND} if not found. |
f7bd2698 | 683 | |
8a540c88 | 684 | \constfunc{int}{Find}{\param{const wxString\&}{ sub}} |
f7bd2698 | 685 | |
e2622169 | 686 | Searches for the given string. Returns the starting index, or {\tt wxNOT\_FOUND} if not found. |
a660d684 | 687 | |
d6718dd1 | 688 | |
b3324be2 | 689 | \membersection{wxString::First}\label{wxstringfirst} |
a660d684 | 690 | |
b0b96f66 | 691 | \func{int}{First}{\param{wxChar}{ c}} |
a660d684 | 692 | |
b0b96f66 | 693 | \constfunc{int}{First}{\param{const wxChar*}{ psz}} |
a660d684 | 694 | |
0aa35d19 | 695 | \constfunc{int}{First}{\param{const wxString\&}{ str}} |
a660d684 | 696 | |
0aa35d19 | 697 | Same as \helpref{Find}{wxstringfind}. |
a660d684 | 698 | |
b0b96f66 VZ |
699 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
700 | ||
d6718dd1 | 701 | |
bd8465ff VS |
702 | \membersection{wxString::fn\_str}\label{wxstringfnstr} |
703 | ||
704 | \constfunc{const wchar\_t*}{fn\_str}{\void} | |
705 | ||
706 | \constfunc{const char*}{fn\_str}{\void} | |
707 | ||
708 | \constfunc{const wxCharBuffer}{fn\_str}{\void} | |
709 | ||
710 | Returns string representation suitable for passing to OS' functions for | |
711 | file handling. In ANSI build, this is same as \helpref{c\_str}{wxstringcstr}. | |
712 | In Unicode build, returned value can be either wide character string | |
9c3d92c5 | 713 | or C string in charset matching the {\tt wxConvFileName} object, depending on |
bd8465ff VS |
714 | the OS. |
715 | ||
716 | \wxheading{See also} | |
717 | ||
718 | \helpref{wxMBConv}{wxmbconv}, | |
719 | \helpref{wc\_str}{wxstringwcstr}, \helpref{mb\_str}{wxstringwcstr} | |
720 | ||
d6718dd1 | 721 | |
341e7d28 VZ |
722 | \membersection{wxString::Format}\label{wxstringformat} |
723 | ||
724 | \func{static wxString}{Format}{\param{const wxChar }{*format}, \param{}{...}} | |
725 | ||
726 | This static function returns the string containing the result of calling | |
727 | \helpref{Printf}{wxstringprintf} with the passed parameters on it. | |
728 | ||
729 | \wxheading{See also} | |
730 | ||
731 | \helpref{FormatV}{wxstringformatv}, \helpref{Printf}{wxstringprintf} | |
732 | ||
d6718dd1 | 733 | |
341e7d28 VZ |
734 | \membersection{wxString::FormatV}\label{wxstringformatv} |
735 | ||
3980000c | 736 | \func{static wxString}{FormatV}{\param{const wxChar }{*format}, \param{va\_list }{argptr}} |
341e7d28 VZ |
737 | |
738 | This static function returns the string containing the result of calling | |
739 | \helpref{PrintfV}{wxstringprintfv} with the passed parameters on it. | |
740 | ||
741 | \wxheading{See also} | |
742 | ||
743 | \helpref{Format}{wxstringformat}, \helpref{PrintfV}{wxstringprintfv} | |
744 | ||
d6718dd1 | 745 | |
99f09bc1 VZ |
746 | \membersection{wxString::Freq}\label{wxstringfreq} |
747 | ||
b0b96f66 | 748 | \constfunc{int}{Freq}{\param{wxChar }{ch}} |
99f09bc1 | 749 | |
f6bcfd97 | 750 | Returns the number of occurrences of {\it ch} in the string. |
99f09bc1 | 751 | |
b0b96f66 VZ |
752 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
753 | ||
cb2f2135 VS |
754 | \membersection{wxString::From8BitData}\label{wxstringfrom8bitdata} |
755 | ||
756 | \func{static wxString }{From8BitData}{\param{const char*}{ buf}, \param{size\_t}{len}} | |
757 | ||
758 | \func{static wxString }{From8BitData}{\param{const char*}{ buf}} | |
759 | ||
760 | Converts given buffer of binary data from 8-bit string to wxString. In Unicode | |
761 | build, the string is interpreted as being in ISO-8859-1 encoding. The version | |
762 | without \arg{len} parameter takes NUL-terminated data. | |
763 | ||
764 | This is a convenience method useful when storing binary data in wxString. | |
765 | ||
766 | \newsince{2.8.4} | |
767 | ||
768 | \wxheading{See also} | |
769 | ||
770 | \helpref{To8BitData}{wxstringto8bitdata} | |
771 | ||
d6718dd1 | 772 | |
6d9d6350 JS |
773 | \membersection{wxString::FromAscii}\label{wxstringfromascii} |
774 | ||
775 | \func{static wxString }{FromAscii}{\param{const char*}{ s}} | |
776 | ||
628f9e95 VZ |
777 | \func{static wxString }{FromAscii}{\param{const unsigned char*}{ s}} |
778 | ||
e6310bbc VS |
779 | \func{static wxString }{FromAscii}{\param{const char*}{ s}, \param{size\_t}{ len}} |
780 | ||
628f9e95 VZ |
781 | \func{static wxString }{FromAscii}{\param{const unsigned char*}{ s}, \param{size\_t}{ len}} |
782 | ||
783 | \func{static wxString }{FromAscii}{\param{char}{ c}} | |
6d9d6350 JS |
784 | |
785 | Converts the string or character from an ASCII, 7-bit form | |
786 | to the native wxString representation. Most useful when using | |
b0b96f66 | 787 | a Unicode build of wxWidgets (note the use of {\tt char} instead of {\tt wxChar}). |
bd8465ff VS |
788 | Use \helpref{wxString constructors}{wxstringconstruct} if you |
789 | need to convert from another charset. | |
6d9d6350 | 790 | |
d6718dd1 | 791 | |
5f167b77 VS |
792 | \membersection{wxString::FromUTF8}\label{wxstringfromutf8} |
793 | ||
794 | \func{static wxString }{FromUTF8}{\param{const char*}{ s}} | |
795 | ||
796 | \func{static wxString }{FromUTF8}{\param{const char*}{ s}, \param{size\_t}{ len}} | |
797 | ||
798 | Converts C string encoded in UTF-8 to wxString. | |
799 | ||
800 | Note that this method assumes that \arg{s} is a valid UTF-8 sequence and | |
801 | doesn't do any validation in release builds, it's validity is only checked in | |
802 | debug builds. | |
803 | ||
804 | ||
f7bd2698 | 805 | \membersection{wxString::GetChar}\label{wxstringgetchar} |
a660d684 | 806 | |
b0b96f66 | 807 | \constfunc{wxChar}{GetChar}{\param{size\_t}{ n}} |
a660d684 | 808 | |
f7bd2698 | 809 | Returns the character at position {\it n} (read-only). |
a660d684 | 810 | |
d6718dd1 | 811 | |
99f09bc1 | 812 | \membersection{wxString::GetData}\label{wxstringgetdata} |
a660d684 | 813 | |
f5409ef1 | 814 | \constfunc{const wxChar*}{GetData}{\void} |
a660d684 | 815 | |
fc2171bd | 816 | wxWidgets compatibility conversion. Returns a constant pointer to the data in the string. |
a660d684 | 817 | |
d6718dd1 | 818 | |
f7bd2698 | 819 | \membersection{wxString::GetWritableChar}\label{wxstringgetwritablechar} |
a660d684 | 820 | |
b0b96f66 | 821 | \func{wxChar\&}{GetWritableChar}{\param{size\_t}{ n}} |
a660d684 | 822 | |
f7bd2698 | 823 | Returns a reference to the character at position {\it n}. |
a660d684 | 824 | |
d6718dd1 | 825 | |
f7bd2698 | 826 | \membersection{wxString::GetWriteBuf}\label{wxstringgetwritebuf} |
a660d684 | 827 | |
9a55c2ee | 828 | \func{wxChar*}{GetWriteBuf}{\param{size\_t}{ len}} |
a660d684 | 829 | |
f7bd2698 | 830 | Returns a writable buffer of at least {\it len} bytes. |
8161ba08 JS |
831 | It returns a pointer to a new memory block, and the |
832 | existing data will not be copied. | |
a660d684 | 833 | |
24ad9318 VS |
834 | Call \helpref{wxString::UngetWriteBuf}{wxstringungetwritebuf} as soon as |
835 | possible to put the string back into a reasonable state. | |
836 | ||
837 | This method is deprecated, please use | |
838 | \helpref{wxStringBuffer}{wxstringbuffer} or | |
839 | \helpref{wxStringBufferLength}{wxstringbufferlength} instead. | |
a660d684 | 840 | |
d6718dd1 | 841 | |
99f09bc1 | 842 | \membersection{wxString::Index}\label{wxstringindex} |
a660d684 | 843 | |
b0b96f66 | 844 | \constfunc{size\_t}{Index}{\param{wxChar}{ ch}} |
a660d684 | 845 | |
b0b96f66 | 846 | \constfunc{size\_t}{Index}{\param{const wxChar*}{ sz}} |
a660d684 | 847 | |
f7bd2698 | 848 | Same as \helpref{wxString::Find}{wxstringfind}. |
a660d684 | 849 | |
b0b96f66 VZ |
850 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
851 | ||
d6718dd1 | 852 | |
99f09bc1 | 853 | \membersection{wxString::IsAscii}\label{wxstringisascii} |
a660d684 | 854 | |
f7bd2698 | 855 | \constfunc{bool}{IsAscii}{\void} |
a660d684 | 856 | |
b0b96f66 VZ |
857 | Returns \true if the string contains only ASCII characters. |
858 | ||
859 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. | |
a660d684 | 860 | |
d6718dd1 | 861 | |
f7bd2698 | 862 | \membersection{wxString::IsEmpty}\label{wxstringisempty} |
a660d684 | 863 | |
f7bd2698 | 864 | \constfunc{bool}{IsEmpty}{\void} |
a660d684 | 865 | |
b0b96f66 | 866 | Returns \true if the string is empty. |
a660d684 | 867 | |
d6718dd1 | 868 | |
99f09bc1 | 869 | \membersection{wxString::IsNull}\label{wxstringisnull} |
a660d684 | 870 | |
f7bd2698 | 871 | \constfunc{bool}{IsNull}{\void} |
a660d684 | 872 | |
b0b96f66 VZ |
873 | Returns \true if the string is empty (same as \helpref{IsEmpty}{wxstringisempty}). |
874 | ||
875 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. | |
a660d684 | 876 | |
d6718dd1 | 877 | |
99f09bc1 | 878 | \membersection{wxString::IsNumber}\label{wxstringisnumber} |
a660d684 | 879 | |
f7bd2698 JS |
880 | \constfunc{bool}{IsNumber}{\void} |
881 | ||
b0b96f66 VZ |
882 | Returns \true if the string is an integer (with possible sign). |
883 | ||
884 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. | |
f7bd2698 | 885 | |
d6718dd1 | 886 | |
f7bd2698 JS |
887 | \membersection{wxString::IsSameAs}\label{wxstringissameas} |
888 | ||
b0b96f66 | 889 | \constfunc{bool}{IsSameAs}{\param{const wxChar*}{ psz}, \param{bool}{ caseSensitive = true}} |
f7bd2698 JS |
890 | |
891 | Test for string equality, case-sensitive (default) or not. | |
892 | ||
b0b96f66 | 893 | caseSensitive is \true by default (case matters). |
a660d684 | 894 | |
b0b96f66 | 895 | Returns \true if strings are equal, \false otherwise. |
f7bd2698 | 896 | |
4b4fae9b | 897 | See also \helpref{Cmp}{wxstringcmp}, \helpref{CmpNoCase}{wxstringcmpnocase} |
f33fee2a | 898 | |
b0b96f66 | 899 | \constfunc{bool}{IsSameAs}{\param{wxChar}{ c}, \param{bool}{ caseSensitive = true}} |
f33fee2a VZ |
900 | |
901 | Test whether the string is equal to the single character {\it c}. The test is | |
b0b96f66 | 902 | case-sensitive if {\it caseSensitive} is \true (default) or not if it is \false. |
f33fee2a | 903 | |
b0b96f66 | 904 | Returns \true if the string is equal to the character, \false otherwise. |
f33fee2a | 905 | |
4b4fae9b | 906 | See also \helpref{Cmp}{wxstringcmp}, \helpref{CmpNoCase}{wxstringcmpnocase} |
a660d684 | 907 | |
d6718dd1 | 908 | |
99f09bc1 | 909 | \membersection{wxString::IsWord}\label{wxstringisword} |
a660d684 | 910 | |
f7bd2698 | 911 | \constfunc{bool}{IsWord}{\void} |
a660d684 | 912 | |
b0b96f66 VZ |
913 | Returns \true if the string is a word. |
914 | ||
915 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. | |
a660d684 | 916 | |
d6718dd1 | 917 | |
99f09bc1 | 918 | \membersection{wxString::Last}\label{wxstringlast} |
a660d684 | 919 | |
b0b96f66 | 920 | \constfunc{wxChar}{Last}{\void} |
a660d684 | 921 | |
f7bd2698 | 922 | Returns the last character. |
a660d684 | 923 | |
b0b96f66 | 924 | \func{wxChar\&}{Last}{\void} |
a660d684 | 925 | |
f7bd2698 | 926 | Returns a reference to the last character (writable). |
a660d684 | 927 | |
b0b96f66 VZ |
928 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
929 | ||
d6718dd1 | 930 | |
f7bd2698 JS |
931 | \membersection{wxString::Left}\label{wxstringleft} |
932 | ||
933 | \constfunc{wxString}{Left}{\param{size\_t}{ count}} | |
934 | ||
fefc4f15 | 935 | Returns the first {\it count} characters of the string. |
a660d684 | 936 | |
d6718dd1 | 937 | |
f7bd2698 | 938 | \membersection{wxString::Len}\label{wxstringlen} |
a660d684 | 939 | |
f7bd2698 JS |
940 | \constfunc{size\_t}{Len}{\void} |
941 | ||
942 | Returns the length of the string. | |
943 | ||
d6718dd1 | 944 | |
f7bd2698 JS |
945 | \membersection{wxString::Length}\label{wxstringlength} |
946 | ||
947 | \constfunc{size\_t}{Length}{\void} | |
948 | ||
949 | Returns the length of the string (same as Len). | |
a660d684 | 950 | |
b0b96f66 VZ |
951 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
952 | ||
d6718dd1 | 953 | |
99f09bc1 VZ |
954 | \membersection{wxString::Lower}\label{wxstringlower} |
955 | ||
956 | \constfunc{wxString}{Lower}{\void} | |
957 | ||
958 | Returns this string converted to the lower case. | |
959 | ||
d6718dd1 | 960 | |
99f09bc1 | 961 | \membersection{wxString::LowerCase}\label{wxstringlowercase} |
a660d684 | 962 | |
f7bd2698 JS |
963 | \func{void}{LowerCase}{\void} |
964 | ||
965 | Same as MakeLower. | |
966 | ||
b0b96f66 VZ |
967 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
968 | ||
d6718dd1 | 969 | |
f7bd2698 JS |
970 | \membersection{wxString::MakeLower}\label{wxstringmakelower} |
971 | ||
e16f8973 | 972 | \func{wxString\&}{MakeLower}{\void} |
f7bd2698 | 973 | |
e16f8973 | 974 | Converts all characters to lower case and returns the result. |
f7bd2698 | 975 | |
d6718dd1 | 976 | |
f7bd2698 JS |
977 | \membersection{wxString::MakeUpper}\label{wxstringmakeupper} |
978 | ||
e16f8973 | 979 | \func{wxString\&}{MakeUpper}{\void} |
f7bd2698 | 980 | |
e16f8973 | 981 | Converts all characters to upper case and returns the result. |
a660d684 | 982 | |
d6718dd1 | 983 | |
99f09bc1 | 984 | \membersection{wxString::Matches}\label{wxstringmatches} |
a660d684 | 985 | |
8a540c88 | 986 | \constfunc{bool}{Matches}{\param{const wxString\&}{ mask}} |
f7bd2698 | 987 | |
b0b96f66 | 988 | Returns \true if the string contents matches a mask containing '*' and '?'. |
a660d684 | 989 | |
d6718dd1 | 990 | |
bd8465ff VS |
991 | \membersection{wxString::mb\_str}\label{wxstringmbstr} |
992 | ||
5487ff0f | 993 | \constfunc{const char*}{mb\_str}{\param{const wxMBConv\&}{ conv = wxConvLibc}} |
bd8465ff | 994 | |
5487ff0f | 995 | \constfunc{const wxCharBuffer}{mb\_str}{\param{const wxMBConv\&}{ conv = wxConvLibc}} |
bd8465ff VS |
996 | |
997 | Returns multibyte (C string) representation of the string. | |
998 | In Unicode build, converts using \arg{conv}'s \helpref{cWC2MB}{wxmbconvcwc2mb} | |
999 | method and returns wxCharBuffer. In ANSI build, this function is same | |
1000 | as \helpref{c\_str}{wxstringcstr}. | |
1001 | The macro wxWX2MBbuf is defined as the correct return type (without const). | |
1002 | ||
1003 | \wxheading{See also} | |
1004 | ||
1005 | \helpref{wxMBConv}{wxmbconv}, | |
1006 | \helpref{c\_str}{wxstringcstr}, \helpref{wc\_str}{wxstringwcstr}, | |
ef0f1387 | 1007 | \helpref{fn\_str}{wxstringfnstr}, \helpref{char\_str}{wxstringcharstr} |
bd8465ff | 1008 | |
d6718dd1 | 1009 | |
f7bd2698 | 1010 | \membersection{wxString::Mid}\label{wxstringmid} |
a660d684 | 1011 | |
99f09bc1 | 1012 | \constfunc{wxString}{Mid}{\param{size\_t}{ first}, \param{size\_t}{ count = wxSTRING\_MAXLEN}} |
a660d684 | 1013 | |
f7bd2698 JS |
1014 | Returns a substring starting at {\it first}, with length {\it count}, or the rest of |
1015 | the string if {\it count} is the default value. | |
1016 | ||
d6718dd1 | 1017 | |
f7bd2698 JS |
1018 | \membersection{wxString::Pad}\label{wxstringpad} |
1019 | ||
b0b96f66 | 1020 | \func{wxString\&}{Pad}{\param{size\_t}{ count}, \param{wxChar}{ pad = ' '}, \param{bool}{ fromRight = true}} |
f7bd2698 JS |
1021 | |
1022 | Adds {\it count} copies of {\it pad} to the beginning, or to the end of the string (the default). | |
1023 | ||
1024 | Removes spaces from the left or from the right (default). | |
a660d684 | 1025 | |
d6718dd1 | 1026 | |
99f09bc1 | 1027 | \membersection{wxString::Prepend}\label{wxstringprepend} |
a660d684 | 1028 | |
f7bd2698 | 1029 | \func{wxString\&}{Prepend}{\param{const wxString\&}{ str}} |
a660d684 | 1030 | |
f7bd2698 | 1031 | Prepends {\it str} to this string, returning a reference to this string. |
a660d684 | 1032 | |
d6718dd1 | 1033 | |
f7bd2698 | 1034 | \membersection{wxString::Printf}\label{wxstringprintf} |
a660d684 | 1035 | |
b0b96f66 | 1036 | \func{int}{Printf}{\param{const wxChar* }{pszFormat}, \param{}{...}} |
f7bd2698 | 1037 | |
99f09bc1 VZ |
1038 | Similar to the standard function {\it sprintf()}. Returns the number of |
1039 | characters written, or an integer less than zero on error. | |
1040 | ||
418ab1e7 | 1041 | Note that if {\tt wxUSE\_PRINTF\_POS\_PARAMS} is set to 1, then this function supports |
412a5c57 VZ |
1042 | Unix98-style positional parameters: |
1043 | ||
1044 | \begin{verbatim} | |
1045 | wxString str; | |
1046 | ||
1047 | str.Printf(wxT("%d %d %d"), 1, 2, 3); | |
1048 | // str now contains "1 2 3" | |
1049 | ||
1050 | str.Printf(wxT("%2$d %3$d %1$d"), 1, 2, 3); | |
1051 | // str now contains "2 3 1" | |
1052 | \end{verbatim} | |
1053 | ||
99f09bc1 VZ |
1054 | {\bf NB:} This function will use a safe version of {\it vsprintf()} (usually called |
1055 | {\it vsnprintf()}) whenever available to always allocate the buffer of correct | |
1056 | size. Unfortunately, this function is not available on all platforms and the | |
1057 | dangerous {\it vsprintf()} will be used then which may lead to buffer overflows. | |
a660d684 | 1058 | |
d6718dd1 | 1059 | |
f7bd2698 JS |
1060 | \membersection{wxString::PrintfV}\label{wxstringprintfv} |
1061 | ||
b0b96f66 | 1062 | \func{int}{PrintfV}{\param{const wxChar* }{pszFormat}, \param{va\_list}{ argPtr}} |
f7bd2698 JS |
1063 | |
1064 | Similar to vprintf. Returns the number of characters written, or an integer less than zero | |
1065 | on error. | |
a660d684 | 1066 | |
d6718dd1 | 1067 | |
99f09bc1 | 1068 | \membersection{wxString::Remove}\label{wxstringremove} |
a660d684 | 1069 | |
f7bd2698 JS |
1070 | \func{wxString\&}{Remove}{\param{size\_t}{ pos}} |
1071 | ||
1072 | Same as Truncate. Removes the portion from {\it pos} to the end of the string. | |
1073 | ||
1074 | \func{wxString\&}{Remove}{\param{size\_t}{ pos}, \param{size\_t}{ len}} | |
1075 | ||
08890e27 | 1076 | Removes {\it len} characters from the string, starting at {\it pos}. |
f7bd2698 | 1077 | |
b0b96f66 VZ |
1078 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
1079 | ||
d6718dd1 | 1080 | |
f7bd2698 | 1081 | \membersection{wxString::RemoveLast}\label{wxstringremovelast} |
a660d684 | 1082 | |
f7bd2698 JS |
1083 | \func{wxString\&}{RemoveLast}{\void} |
1084 | ||
1085 | Removes the last character. | |
a660d684 | 1086 | |
d6718dd1 | 1087 | |
99f09bc1 | 1088 | \membersection{wxString::Replace}\label{wxstringreplace} |
a660d684 | 1089 | |
8a540c88 | 1090 | \func{size\_t}{Replace}{\param{const wxString\&}{ strOld}, \param{const wxString\&}{ strNew}, \param{bool}{ replaceAll = true}} |
f7bd2698 | 1091 | |
7335902d | 1092 | Replace first (or all) occurrences of substring with another one. |
f7bd2698 | 1093 | |
7335902d | 1094 | {\it replaceAll}: global replace (default), or only the first occurrence. |
f7bd2698 JS |
1095 | |
1096 | Returns the number of replacements made. | |
1097 | ||
d6718dd1 | 1098 | |
f7bd2698 JS |
1099 | \membersection{wxString::Right}\label{wxstringright} |
1100 | ||
1101 | \constfunc{wxString}{Right}{\param{size\_t}{ count}} | |
a660d684 | 1102 | |
f7bd2698 | 1103 | Returns the last {\it count} characters. |
a660d684 | 1104 | |
d6718dd1 | 1105 | |
f7bd2698 | 1106 | \membersection{wxString::SetChar}\label{wxstringsetchar} |
a660d684 | 1107 | |
b0b96f66 | 1108 | \func{void}{SetChar}{\param{size\_t}{ n}, \param{wxChar}{ch}} |
f7bd2698 JS |
1109 | |
1110 | Sets the character at position {\it n}. | |
1111 | ||
d6718dd1 | 1112 | |
f7bd2698 JS |
1113 | \membersection{wxString::Shrink}\label{wxstringshrink} |
1114 | ||
1115 | \func{void}{Shrink}{\void} | |
1116 | ||
99f09bc1 VZ |
1117 | Minimizes the string's memory. This can be useful after a call to |
1118 | \helpref{Alloc()}{wxstringalloc} if too much memory were preallocated. | |
a660d684 | 1119 | |
d6718dd1 | 1120 | |
f6bcfd97 BP |
1121 | \membersection{wxString::StartsWith}\label{wxstringstartswith} |
1122 | ||
c5e7a7d7 | 1123 | \constfunc{bool}{StartsWith}{\param{const wxString\& }{prefix}, \param{wxString }{*rest = NULL}} |
f6bcfd97 BP |
1124 | |
1125 | This function can be used to test if the string starts with the specified | |
b0b96f66 | 1126 | {\it prefix}. If it does, the function will return \true and put the rest |
f6bcfd97 | 1127 | of the string (i.e. after the prefix) into {\it rest} string if it is not |
b0b96f66 | 1128 | {\tt NULL}. Otherwise, the function returns \false and doesn't modify the |
f6bcfd97 BP |
1129 | {\it rest}. |
1130 | ||
d6718dd1 | 1131 | |
3affcd07 VZ |
1132 | \membersection{wxString::EndsWith}\label{wxstringendswith} |
1133 | ||
c5e7a7d7 | 1134 | \constfunc{bool}{EndsWith}{\param{const wxString\& }{suffix}, \param{wxString }{*rest = NULL}} |
3affcd07 VZ |
1135 | |
1136 | This function can be used to test if the string ends with the specified | |
b0b96f66 | 1137 | {\it suffix}. If it does, the function will return \true and put the |
3affcd07 | 1138 | beginning of the string before the suffix into {\it rest} string if it is not |
b0b96f66 | 1139 | {\tt NULL}. Otherwise, the function returns \false and doesn't |
3affcd07 VZ |
1140 | modify the {\it rest}. |
1141 | ||
d6718dd1 | 1142 | |
99f09bc1 | 1143 | \membersection{wxString::Strip}\label{wxstringstrip} |
a660d684 KB |
1144 | |
1145 | \begin{verbatim} | |
b0b96f66 | 1146 | enum wxString::stripType {leading = 0x1, trailing = 0x2, both = 0x3}; |
a660d684 KB |
1147 | \end{verbatim} |
1148 | ||
f7bd2698 | 1149 | \constfunc{wxString}{Strip}{\param{stripType}{ s = trailing}} |
a660d684 | 1150 | |
f7bd2698 JS |
1151 | Strip characters at the front and/or end. The same as Trim except that it |
1152 | doesn't change this string. | |
a660d684 | 1153 | |
b0b96f66 VZ |
1154 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
1155 | ||
d6718dd1 | 1156 | |
99f09bc1 VZ |
1157 | \membersection{wxString::SubString}\label{wxstringsubstring} |
1158 | ||
f6bcfd97 | 1159 | \constfunc{wxString}{SubString}{\param{size\_t}{ from}, \param{size\_t}{ to}} |
99f09bc1 | 1160 | |
b855ef77 VZ |
1161 | Returns the part of the string between the indices {\it from} and {\it to} |
1162 | inclusive. | |
99f09bc1 | 1163 | |
b0b96f66 VZ |
1164 | This is a wxWidgets 1.xx compatibility function, use \helpref{Mid}{wxstringmid} |
1165 | instead (but note that parameters have different meaning). | |
1166 | ||
d6718dd1 | 1167 | |
cb2f2135 VS |
1168 | \membersection{wxString::To8BitData}\label{wxstringto8bitdata} |
1169 | ||
1170 | \constfunc{const char*}{To8BitData}{\void} | |
1171 | ||
1172 | Converts the string to an 8-bit string (ANSI builds only). | |
1173 | ||
1174 | \constfunc{const wxCharBuffer}{To8BitData}{\void} | |
1175 | ||
1176 | Converts the string to an 8-bit string in ISO-8859-1 encoding in the form of | |
1177 | a wxCharBuffer (Unicode builds only). | |
1178 | ||
1179 | This is a convenience method useful when storing binary data in wxString. | |
1180 | ||
1181 | \newsince{2.8.4} | |
1182 | ||
1183 | \wxheading{See also} | |
1184 | ||
1185 | \helpref{From8BitData}{wxstringfrom8bitdata} | |
1186 | ||
1187 | ||
6d9d6350 JS |
1188 | \membersection{wxString::ToAscii}\label{wxstringtoascii} |
1189 | ||
1190 | \constfunc{const char*}{ToAscii}{\void} | |
1191 | ||
6d9d6350 JS |
1192 | \constfunc{const wxCharBuffer}{ToAscii}{\void} |
1193 | ||
1194 | Converts the string to an ASCII, 7-bit string in the form of | |
5f167b77 | 1195 | a wxCharBuffer (Unicode builds only) or a C string (ANSI builds). |
6d9d6350 | 1196 | |
bd8465ff VS |
1197 | Note that this conversion only works if the string contains only ASCII |
1198 | characters. The \helpref{mb\_str}{wxstringmbstr} method provides more | |
1199 | powerful means of converting wxString to C string. | |
1200 | ||
d6718dd1 | 1201 | |
cd0b1709 VZ |
1202 | \membersection{wxString::ToDouble}\label{wxstringtodouble} |
1203 | ||
f6bcfd97 | 1204 | \constfunc{bool}{ToDouble}{\param{double}{ *val}} |
cd0b1709 | 1205 | |
b0b96f66 | 1206 | Attempts to convert the string to a floating point number. Returns \true on |
c6dcefd2 VZ |
1207 | success (the number is stored in the location pointed to by \arg{val}) or \false |
1208 | if the string does not represent such number (the value of \arg{val} shouldn't | |
1209 | be used in this case). | |
cd0b1709 | 1210 | |
f6bcfd97 BP |
1211 | \wxheading{See also} |
1212 | ||
1213 | \helpref{wxString::ToLong}{wxstringtolong},\\ | |
1214 | \helpref{wxString::ToULong}{wxstringtoulong} | |
1215 | ||
d6718dd1 | 1216 | |
cd0b1709 VZ |
1217 | \membersection{wxString::ToLong}\label{wxstringtolong} |
1218 | ||
538f35cc | 1219 | \constfunc{bool}{ToLong}{\param{long}{ *val}, \param{int }{base = $10$}} |
cd0b1709 | 1220 | |
4eb438cf | 1221 | Attempts to convert the string to a signed integer in base {\it base}. Returns |
b0b96f66 | 1222 | \true on success in which case the number is stored in the location |
c6dcefd2 VZ |
1223 | pointed to by \arg{val} or \false if the string does not represent a |
1224 | valid number in the given base (the value of \arg{val} shouldn't | |
1225 | be used in this case). | |
4eb438cf | 1226 | |
538f35cc VZ |
1227 | The value of {\it base} must be comprised between $2$ and $36$, inclusive, or |
1228 | be a special value $0$ which means that the usual rules of {\tt C} numbers are | |
1229 | applied: if the number starts with {\tt 0x} it is considered to be in base | |
1230 | $16$, if it starts with {\tt 0} - in base $8$ and in base $10$ otherwise. Note | |
1231 | that you may not want to specify the base $0$ if you are parsing the numbers | |
1232 | which may have leading zeroes as they can yield unexpected (to the user not | |
1233 | familiar with C) results. | |
cd0b1709 | 1234 | |
f6bcfd97 BP |
1235 | \wxheading{See also} |
1236 | ||
1237 | \helpref{wxString::ToDouble}{wxstringtodouble},\\ | |
1238 | \helpref{wxString::ToULong}{wxstringtoulong} | |
1239 | ||
d6718dd1 VZ |
1240 | |
1241 | \membersection{wxString::ToLongLong}\label{wxstringtolonglong} | |
1242 | ||
1243 | \constfunc{bool}{ToLongLong}{\param{wxLongLong\_t}{ *val}, \param{int }{base = $10$}} | |
1244 | ||
1245 | This is exactly the same as \helpref{ToLong}{wxstringtolong} but works with 64 | |
1246 | bit integer numbers. | |
1247 | ||
1248 | Notice that currently it doesn't work (always returns \false) if parsing of 64 | |
1249 | bit numbers is not supported by the underlying C run-time library. Compilers | |
1250 | with C99 support and Microsoft Visual C++ version 7 and higher do support this. | |
1251 | ||
1252 | \wxheading{See also} | |
1253 | ||
1254 | \helpref{wxString::ToLong}{wxstringtolong},\\ | |
1255 | \helpref{wxString::ToULongLong}{wxstringtoulonglong} | |
1256 | ||
1257 | ||
cd0b1709 VZ |
1258 | \membersection{wxString::ToULong}\label{wxstringtoulong} |
1259 | ||
538f35cc | 1260 | \constfunc{bool}{ToULong}{\param{unsigned long}{ *val}, \param{int }{base = $10$}} |
4eb438cf | 1261 | |
3980000c | 1262 | Attempts to convert the string to an unsigned integer in base {\it base}. |
b0b96f66 | 1263 | Returns \true on success in which case the number is stored in the |
c6dcefd2 VZ |
1264 | location pointed to by \arg{val} or \false if the string does not |
1265 | represent a valid number in the given base (the value of \arg{val} shouldn't | |
1266 | be used in this case). Please notice that this function | |
731fa21e VZ |
1267 | behaves in the same way as the standard \texttt{strtoul()} and so it simply |
1268 | converts negative numbers to unsigned representation instead of rejecting them | |
1269 | (e.g. $-1$ is returned as \texttt{ULONG\_MAX}). | |
cd0b1709 | 1270 | |
ec64d632 VZ |
1271 | See \helpref{wxString::ToLong}{wxstringtolong} for the more detailed |
1272 | description of the {\it base} parameter. | |
cd0b1709 | 1273 | |
f6bcfd97 BP |
1274 | \wxheading{See also} |
1275 | ||
1276 | \helpref{wxString::ToDouble}{wxstringtodouble},\\ | |
1277 | \helpref{wxString::ToLong}{wxstringtolong} | |
1278 | ||
d6718dd1 VZ |
1279 | |
1280 | \membersection{wxString::ToULongLong}\label{wxstringtoulonglong} | |
1281 | ||
1282 | \constfunc{bool}{ToULongLong}{\param{wxULongLong\_t}{ *val}, \param{int }{base = $10$}} | |
1283 | ||
1284 | This is exactly the same as \helpref{ToULong}{wxstringtoulong} but works with 64 | |
1285 | bit integer numbers. | |
1286 | ||
1287 | Please see \helpref{ToLongLong}{wxstringtolonglong} for additional remarks. | |
1288 | ||
1289 | ||
5f167b77 VS |
1290 | \membersection{wxString::ToUTF8}\label{wxstringtoutf8} |
1291 | ||
1292 | \constfunc{const char*}{ToUTF8}{\void} | |
1293 | ||
1294 | \constfunc{const wxCharBuffer}{ToUF8}{\void} | |
1295 | ||
1296 | Same as \helpref{utf8\_str}{wxstringutf8str}. | |
1297 | ||
1298 | ||
f7bd2698 | 1299 | \membersection{wxString::Trim}\label{wxstringtrim} |
a660d684 | 1300 | |
cc81d32f | 1301 | \func{wxString\&}{Trim}{\param{bool}{ fromRight = true}} |
a660d684 | 1302 | |
4e43c815 VZ |
1303 | Removes white-space (space, tabs, form feed, newline and carriage return) from |
1304 | the left or from the right end of the string (right is default). | |
a660d684 | 1305 | |
d6718dd1 | 1306 | |
f7bd2698 | 1307 | \membersection{wxString::Truncate}\label{wxstringtruncate} |
a660d684 | 1308 | |
f7bd2698 | 1309 | \func{wxString\&}{Truncate}{\param{size\_t}{ len}} |
a660d684 | 1310 | |
f7bd2698 | 1311 | Truncate the string to the given length. |
a660d684 | 1312 | |
d6718dd1 | 1313 | |
f7bd2698 JS |
1314 | \membersection{wxString::UngetWriteBuf}\label{wxstringungetwritebuf} |
1315 | ||
1316 | \func{void}{UngetWriteBuf}{\void} | |
1317 | ||
448025b0 VZ |
1318 | \func{void}{UngetWriteBuf}{\param{size\_t }{len}} |
1319 | ||
1320 | Puts the string back into a reasonable state (in which it can be used | |
1321 | normally), after | |
f7bd2698 | 1322 | \rtfsp\helpref{wxString::GetWriteBuf}{wxstringgetwritebuf} was called. |
a660d684 | 1323 | |
448025b0 VZ |
1324 | The version of the function without the {\it len} parameter will calculate the |
1325 | new string length itself assuming that the string is terminated by the first | |
1326 | {\tt NUL} character in it while the second one will use the specified length | |
1327 | and thus is the only version which should be used with the strings with | |
1328 | embedded {\tt NUL}s (it is also slightly more efficient as {\tt strlen()} | |
1329 | doesn't have to be called). | |
1330 | ||
24ad9318 VS |
1331 | This method is deprecated, please use |
1332 | \helpref{wxStringBuffer}{wxstringbuffer} or | |
1333 | \helpref{wxStringBufferLength}{wxstringbufferlength} instead. | |
1334 | ||
d6718dd1 | 1335 | |
99f09bc1 VZ |
1336 | \membersection{wxString::Upper}\label{wxstringupper} |
1337 | ||
1338 | \constfunc{wxString}{Upper}{\void} | |
1339 | ||
1340 | Returns this string converted to upper case. | |
1341 | ||
d6718dd1 | 1342 | |
99f09bc1 | 1343 | \membersection{wxString::UpperCase}\label{wxstringuppercase} |
a660d684 | 1344 | |
f7bd2698 JS |
1345 | \func{void}{UpperCase}{\void} |
1346 | ||
1347 | The same as MakeUpper. | |
a660d684 | 1348 | |
b0b96f66 VZ |
1349 | This is a wxWidgets 1.xx compatibility function; you should not use it in new code. |
1350 | ||
d6718dd1 | 1351 | |
5f167b77 VS |
1352 | \membersection{wxString::utf8\_str}\label{wxstringutf8str} |
1353 | ||
1354 | \constfunc{const char*}{utf8\_str}{\void} | |
1355 | ||
1356 | \constfunc{const wxCharBuffer}{utf8\_str}{\void} | |
1357 | ||
1358 | Converts the strings contents to UTF-8 and returns it either as a temporary | |
1359 | wxCharBuffer object or as a pointer to the internal string contents in | |
1360 | UTF-8 build. | |
1361 | % FIXME-UTF8: link to a topic explaining UTF-8 build here | |
1362 | ||
1363 | ||
bd8465ff VS |
1364 | \membersection{wxString::wc\_str}\label{wxstringwcstr} |
1365 | ||
5487ff0f | 1366 | \constfunc{const wchar\_t*}{wc\_str}{\param{const wxMBConv\&}{ conv}} |
bd8465ff | 1367 | |
5487ff0f | 1368 | \constfunc{const wxWCharBuffer}{wc\_str}{\param{const wxMBConv\&}{ conv}} |
bd8465ff VS |
1369 | |
1370 | Returns wide character representation of the string. | |
1371 | In ANSI build, converts using \arg{conv}'s \helpref{cMB2WC}{wxmbconvcmb2wc} | |
1372 | method and returns wxWCharBuffer. In Unicode build, this function is same | |
1373 | as \helpref{c\_str}{wxstringcstr}. | |
1374 | The macro wxWX2WCbuf is defined as the correct return type (without const). | |
1375 | ||
1376 | \wxheading{See also} | |
1377 | ||
1378 | \helpref{wxMBConv}{wxmbconv}, | |
1379 | \helpref{c\_str}{wxstringcstr}, \helpref{mb\_str}{wxstringwcstr}, | |
ef0f1387 VS |
1380 | \helpref{fn\_str}{wxstringfnstr}, \helpref{wchar\_str}{wxstringwcharstr} |
1381 | ||
1382 | \membersection{wxString::wchar\_str}\label{wxstringwcharstr} | |
1383 | ||
1384 | \constfunc{wxWritableWCharBuffer}{wchar\_str}{\void} | |
1385 | ||
1386 | Returns an object with string data that is implicitly convertible to | |
e6310bbc VS |
1387 | {\tt char*} pointer. Note that changes to the returned buffer may or may |
1388 | not be lost (depending on the build) and so this function is only usable for | |
1389 | passing strings to legacy libraries that don't have const-correct API. Use | |
1390 | \helpref{wxStringBuffer}{wxstringbuffer} if you want to modify the string. | |
ef0f1387 VS |
1391 | |
1392 | \wxheading{See also} | |
1393 | ||
1394 | \helpref{mb\_str}{wxstringmbstr}, \helpref{wc\_str}{wxstringwcstr}, | |
1395 | \helpref{fn\_str}{wxstringfnstr}, \helpref{c\_str}{wxstringcstr}, | |
1396 | \helpref{char\_str}{wxstringcharstr} | |
bd8465ff | 1397 | |
d6718dd1 | 1398 | |
99f09bc1 VZ |
1399 | \membersection{wxString::operator!}\label{wxstringoperatornot} |
1400 | ||
1401 | \constfunc{bool}{operator!}{\void} | |
1402 | ||
b0b96f66 VZ |
1403 | Empty string is \false, so !string will only return \true if the string is empty. |
1404 | This allows the tests for NULLness of a {\it const wxChar *} pointer and emptiness | |
99f09bc1 VZ |
1405 | of the string to look the same in the code and makes it easier to port old code |
1406 | to wxString. | |
1407 | ||
1408 | See also \helpref{IsEmpty()}{wxstringisempty}. | |
1409 | ||
d6718dd1 | 1410 | |
a660d684 KB |
1411 | \membersection{wxString::operator $=$}\label{wxstringoperatorassign} |
1412 | ||
f7bd2698 JS |
1413 | \func{wxString\&}{operator $=$}{\param{const wxString\&}{ str}} |
1414 | ||
b0b96f66 | 1415 | \func{wxString\&}{operator $=$}{\param{const wxChar*}{ psz}} |
f7bd2698 | 1416 | |
b0b96f66 | 1417 | \func{wxString\&}{operator $=$}{\param{wxChar}{ c}} |
a660d684 | 1418 | |
99f09bc1 VZ |
1419 | Assignment: the effect of each operation is the same as for the corresponding |
1420 | constructor (see \helpref{wxString constructors}{wxstringconstruct}). | |
5de76427 | 1421 | |
d6718dd1 | 1422 | |
f6bcfd97 | 1423 | \membersection{wxString::operator $+$}\label{wxstringoperatorplus} |
5de76427 | 1424 | |
dbd94b75 KH |
1425 | Concatenation: all these operators return a new string equal to the |
1426 | concatenation of the operands. | |
5de76427 JS |
1427 | |
1428 | \func{wxString}{operator $+$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}} | |
1429 | ||
b0b96f66 | 1430 | \func{wxString}{operator $+$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ y}} |
5de76427 | 1431 | |
b0b96f66 | 1432 | \func{wxString}{operator $+$}{\param{const wxString\&}{ x}, \param{wxChar}{ y}} |
5de76427 | 1433 | |
b0b96f66 | 1434 | \func{wxString}{operator $+$}{\param{const wxChar*}{ x}, \param{const wxString\&}{ y}} |
5de76427 | 1435 | |
d6718dd1 | 1436 | |
99f09bc1 | 1437 | \membersection{wxString::operator $+=$}\label{wxstringplusequal} |
a660d684 | 1438 | |
f7bd2698 JS |
1439 | \func{void}{operator $+=$}{\param{const wxString\&}{ str}} |
1440 | ||
b0b96f66 | 1441 | \func{void}{operator $+=$}{\param{const wxChar*}{ psz}} |
f7bd2698 | 1442 | |
b0b96f66 | 1443 | \func{void}{operator $+=$}{\param{wxChar}{ c}} |
a660d684 | 1444 | |
99f09bc1 | 1445 | Concatenation in place: the argument is appended to the string. |
a660d684 | 1446 | |
d6718dd1 | 1447 | |
a660d684 KB |
1448 | \membersection{wxString::operator []}\label{wxstringoperatorbracket} |
1449 | ||
41884be3 | 1450 | \func{wxChar\&}{operator []}{\param{size\_t}{ i}} |
f7bd2698 | 1451 | |
41884be3 | 1452 | \constfunc{wxChar}{operator []}{\param{size\_t}{ i}} |
f7bd2698 | 1453 | |
41884be3 JS |
1454 | \func{wxChar\&}{operator []}{\param{int}{ i}} |
1455 | ||
1456 | \constfunc{wxChar}{operator []}{\param{int}{ i}} | |
a660d684 KB |
1457 | |
1458 | Element extraction. | |
1459 | ||
d6718dd1 | 1460 | |
a660d684 KB |
1461 | \membersection{wxString::operator ()}\label{wxstringoperatorparenth} |
1462 | ||
f7bd2698 JS |
1463 | \func{wxString}{operator ()}{\param{size\_t}{ start}, \param{size\_t}{ len}} |
1464 | ||
1465 | Same as Mid (substring extraction). | |
a660d684 | 1466 | |
d6718dd1 | 1467 | |
a660d684 | 1468 | \membersection{wxString::operator \cinsert}\label{wxstringoperatorout} |
f7bd2698 | 1469 | |
037267e1 | 1470 | \func{wxString\&}{operator \cinsert}{\param{const wxString\&}{ str}} |
f7bd2698 | 1471 | |
b0b96f66 | 1472 | \func{wxString\&}{operator \cinsert}{\param{const wxChar*}{ psz}} |
f7bd2698 | 1473 | |
b0b96f66 | 1474 | \func{wxString\&}{operator \cinsert}{\param{wxChar }{ch}} |
f7bd2698 JS |
1475 | |
1476 | Same as $+=$. | |
a660d684 | 1477 | |
99f09bc1 VZ |
1478 | \func{wxString\&}{operator \cinsert}{\param{int}{ i}} |
1479 | ||
1480 | \func{wxString\&}{operator \cinsert}{\param{float}{ f}} | |
1481 | ||
1482 | \func{wxString\&}{operator \cinsert}{\param{double}{ d}} | |
1483 | ||
1484 | These functions work as C++ stream insertion operators: they insert the given | |
1485 | value into the string. Precision or format cannot be set using them, you can use | |
1486 | \helpref{Printf}{wxstringprintf} for this. | |
1487 | ||
d6718dd1 | 1488 | |
a660d684 | 1489 | \membersection{wxString::operator \cextract}\label{wxstringoperatorin} |
a660d684 | 1490 | |
f7bd2698 | 1491 | \func{friend istream\&}{operator \cextract}{\param{istream\&}{ is}, \param{wxString\&}{ str}} |
a660d684 | 1492 | |
f7bd2698 | 1493 | Extraction from a stream. |
a660d684 | 1494 | |
d6718dd1 | 1495 | |
b0b96f66 | 1496 | \membersection{wxString::operator const wxChar*}\label{wxstringoperatorconstcharpt} |
a660d684 | 1497 | |
b0b96f66 | 1498 | \constfunc{}{operator const wxChar*}{\void} |
a660d684 | 1499 | |
f7bd2698 | 1500 | Implicit conversion to a C string. |
a660d684 | 1501 | |
d6718dd1 | 1502 | |
99f09bc1 | 1503 | \membersection{Comparison operators}\label{wxstringcomparison} |
a660d684 | 1504 | |
f7bd2698 | 1505 | \func{bool}{operator $==$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}} |
a660d684 | 1506 | |
b0b96f66 | 1507 | \func{bool}{operator $==$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}} |
a660d684 | 1508 | |
f7bd2698 | 1509 | \func{bool}{operator $!=$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}} |
a660d684 | 1510 | |
b0b96f66 | 1511 | \func{bool}{operator $!=$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}} |
a660d684 | 1512 | |
f7bd2698 | 1513 | \func{bool}{operator $>$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}} |
a660d684 | 1514 | |
b0b96f66 | 1515 | \func{bool}{operator $>$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}} |
a660d684 | 1516 | |
f7bd2698 | 1517 | \func{bool}{operator $>=$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}} |
a660d684 | 1518 | |
b0b96f66 | 1519 | \func{bool}{operator $>=$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}} |
a660d684 | 1520 | |
f7bd2698 | 1521 | \func{bool}{operator $<$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}} |
a660d684 | 1522 | |
b0b96f66 | 1523 | \func{bool}{operator $<$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}} |
a660d684 | 1524 | |
f7bd2698 | 1525 | \func{bool}{operator $<=$}{\param{const wxString\&}{ x}, \param{const wxString\&}{ y}} |
a660d684 | 1526 | |
b0b96f66 | 1527 | \func{bool}{operator $<=$}{\param{const wxString\&}{ x}, \param{const wxChar*}{ t}} |
a660d684 | 1528 | |
f7bd2698 | 1529 | \wxheading{Remarks} |
a660d684 | 1530 | |
f7bd2698 | 1531 | These comparisons are case-sensitive. |
a660d684 | 1532 | |
1d218550 VZ |
1533 | |
1534 | \section{\class{wxStringBuffer}}\label{wxstringbuffer} | |
1535 | ||
1536 | This tiny class allows to conveniently access the \helpref{wxString}{wxstring} | |
dbd94b75 | 1537 | internal buffer as a writable pointer without any risk of forgetting to restore |
1d218550 VZ |
1538 | the string to the usable state later. |
1539 | ||
1540 | For example, assuming you have a low-level OS function called | |
1541 | {\tt GetMeaningOfLifeAsString(char *)} returning the value in the provided | |
1542 | buffer (which must be writable, of course) you might call it like this: | |
1543 | ||
1544 | \begin{verbatim} | |
1545 | wxString theAnswer; | |
1546 | GetMeaningOfLifeAsString(wxStringBuffer(theAnswer, 1024)); | |
1547 | if ( theAnswer != "42" ) | |
1548 | { | |
1549 | wxLogError("Something is very wrong!"); | |
1550 | } | |
1551 | \end{verbatim} | |
1552 | ||
5687a67c | 1553 | Note that the exact usage of this depends on whether on not wxUSE\_STL is enabled. If |
3103e8a9 | 1554 | wxUSE\_STL is enabled, wxStringBuffer creates a separate empty character buffer, and |
5687a67c RN |
1555 | if wxUSE\_STL is disabled, it uses GetWriteBuf() from wxString, keeping the same buffer |
1556 | wxString uses intact. In other words, relying on wxStringBuffer containing the old | |
1557 | wxString data is probably not a good idea if you want to build your program in both | |
1558 | with and without wxUSE\_STL. | |
1559 | ||
1d218550 VZ |
1560 | \wxheading{Derived from} |
1561 | ||
1562 | None | |
1563 | ||
1564 | \wxheading{Include files} | |
1565 | ||
1566 | <wx/string.h> | |
1567 | ||
1568 | \latexignore{\rtfignore{\wxheading{Members}}} | |
1569 | ||
d6718dd1 | 1570 | |
08f1d438 | 1571 | \membersection{wxStringBuffer::wxStringBuffer}\label{wxstringbufferctor} |
1d218550 VZ |
1572 | |
1573 | \func{}{wxStringBuffer}{\param{const wxString\& }{str}, \param{size\_t }{len}} | |
1574 | ||
1575 | Constructs a writable string buffer object associated with the given string | |
2edb0bde | 1576 | and containing enough space for at least {\it len} characters. Basically, this |
1d218550 VZ |
1577 | is equivalent to calling \helpref{GetWriteBuf}{wxstringgetwritebuf} and |
1578 | saving the result. | |
1579 | ||
d6718dd1 | 1580 | |
08f1d438 | 1581 | \membersection{wxStringBuffer::\destruct{wxStringBuffer}}\label{wxstringbufferdtor} |
1d218550 VZ |
1582 | |
1583 | \func{}{\destruct{wxStringBuffer}}{\void} | |
1584 | ||
1585 | Restores the string passed to the constructor to the usable state by calling | |
1586 | \helpref{UngetWriteBuf}{wxstringungetwritebuf} on it. | |
1587 | ||
d6718dd1 | 1588 | |
08f1d438 | 1589 | \membersection{wxStringBuffer::operator wxChar *}\label{wxstringbufferwxchar} |
1d218550 | 1590 | |
c298ea48 RN |
1591 | \func{wxChar *}{operator wxChar *}{\void} |
1592 | ||
1593 | Returns the writable pointer to a buffer of the size at least equal to the | |
1594 | length specified in the constructor. | |
1595 | ||
1596 | ||
1597 | ||
1598 | \section{\class{wxStringBufferLength}}\label{wxstringbufferlength} | |
1599 | ||
1600 | This tiny class allows to conveniently access the \helpref{wxString}{wxstring} | |
1601 | internal buffer as a writable pointer without any risk of forgetting to restore | |
1602 | the string to the usable state later, and allows the user to set the internal | |
1603 | length of the string. | |
1604 | ||
1605 | For example, assuming you have a low-level OS function called | |
1606 | {\tt int GetMeaningOfLifeAsString(char *)} copying the value in the provided | |
1607 | buffer (which must be writable, of course), and returning the actual length | |
1608 | of the string, you might call it like this: | |
1609 | ||
1610 | \begin{verbatim} | |
1611 | wxString theAnswer; | |
1612 | wxStringBuffer theAnswerBuffer(theAnswer, 1024); | |
1613 | int nLength = GetMeaningOfLifeAsString(theAnswerBuffer); | |
1614 | theAnswerBuffer.SetLength(nLength); | |
1615 | if ( theAnswer != "42" ) | |
1616 | { | |
1617 | wxLogError("Something is very wrong!"); | |
1618 | } | |
1619 | \end{verbatim} | |
1620 | ||
5687a67c | 1621 | Note that the exact usage of this depends on whether on not wxUSE\_STL is enabled. If |
3103e8a9 | 1622 | wxUSE\_STL is enabled, wxStringBuffer creates a separate empty character buffer, and |
5687a67c RN |
1623 | if wxUSE\_STL is disabled, it uses GetWriteBuf() from wxString, keeping the same buffer |
1624 | wxString uses intact. In other words, relying on wxStringBuffer containing the old | |
1625 | wxString data is probably not a good idea if you want to build your program in both | |
1626 | with and without wxUSE\_STL. | |
1627 | ||
c298ea48 RN |
1628 | Note that SetLength {\tt must} be called before wxStringBufferLength destructs. |
1629 | ||
1630 | \wxheading{Derived from} | |
1631 | ||
1632 | None | |
1633 | ||
1634 | \wxheading{Include files} | |
1635 | ||
1636 | <wx/string.h> | |
1637 | ||
1638 | \latexignore{\rtfignore{\wxheading{Members}}} | |
1639 | ||
d6718dd1 | 1640 | |
c298ea48 RN |
1641 | \membersection{wxStringBufferLength::wxStringBufferLength}\label{wxstringbufferlengthctor} |
1642 | ||
9a75ba66 | 1643 | \func{}{wxStringBufferLength}{\param{const wxString\& }{str}, \param{size\_t }{len}} |
c298ea48 RN |
1644 | |
1645 | Constructs a writable string buffer object associated with the given string | |
1646 | and containing enough space for at least {\it len} characters. Basically, this | |
1647 | is equivalent to calling \helpref{GetWriteBuf}{wxstringgetwritebuf} and | |
1648 | saving the result. | |
1649 | ||
d6718dd1 | 1650 | |
c298ea48 RN |
1651 | \membersection{wxStringBufferLength::\destruct{wxStringBufferLength}}\label{wxstringbufferlengthdtor} |
1652 | ||
1653 | \func{}{\destruct{wxStringBufferLength}}{\void} | |
1654 | ||
1655 | Restores the string passed to the constructor to the usable state by calling | |
1656 | \helpref{UngetWriteBuf}{wxstringungetwritebuf} on it. | |
1657 | ||
d6718dd1 | 1658 | |
c298ea48 RN |
1659 | \membersection{wxStringBufferLength::SetLength}\label{wxstringbufferlengthsetlength} |
1660 | ||
1661 | \func{void}{SetLength}{\param{size\_t }{nLength}} | |
1662 | ||
1663 | Sets the internal length of the string referred to by wxStringBufferLength to | |
1664 | {\it nLength} characters. | |
1665 | ||
1666 | Must be called before wxStringBufferLength destructs. | |
1667 | ||
d6718dd1 | 1668 | |
c298ea48 RN |
1669 | \membersection{wxStringBufferLength::operator wxChar *}\label{wxstringbufferlengthwxchar} |
1670 | ||
1671 | \func{wxChar *}{operator wxChar *}{\void} | |
1d218550 VZ |
1672 | |
1673 | Returns the writable pointer to a buffer of the size at least equal to the | |
1674 | length specified in the constructor. | |
1675 | ||
1676 |