+// ===========================================================================
+// headers, declarations, constants
+// ===========================================================================
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#include "wx/wxchar.h"
+
+#define _ISOC9X_SOURCE 1 // to get vsscanf()
+#define _BSD_SOURCE 1 // to still get strdup()
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef __WXWINCE__
+ #include <time.h>
+ #include <locale.h>
+#else
+ #include "wx/msw/wince/time.h"
+#endif
+
+#ifndef WX_PRECOMP
+ #include "wx/string.h"
+ #include "wx/hash.h"
+ #include "wx/utils.h" // for wxMin and wxMax
+ #include "wx/log.h"
+#endif
+
+#if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
+ #include <windef.h>
+ #include <winbase.h>
+ #include <winnls.h>
+ #include <winnt.h>
+#endif
+
+#if defined(__MWERKS__) && __MSL__ >= 0x6000
+namespace std {}
+using namespace std ;
+#endif
+
+#if wxUSE_WCHAR_T
+size_t WXDLLEXPORT wxMB2WC(wchar_t *buf, const char *psz, size_t n)
+{
+ // assume that we have mbsrtowcs() too if we have wcsrtombs()
+#ifdef HAVE_WCSRTOMBS
+ mbstate_t mbstate;
+ memset(&mbstate, 0, sizeof(mbstate_t));
+#endif
+
+ if (buf) {
+ if (!n || !*psz) {
+ if (n) *buf = wxT('\0');
+ return 0;
+ }
+#ifdef HAVE_WCSRTOMBS
+ return mbsrtowcs(buf, &psz, n, &mbstate);
+#else
+ return wxMbstowcs(buf, psz, n);
+#endif
+ }
+
+ // note that we rely on common (and required by Unix98 but unfortunately not
+ // C99) extension which allows to call mbs(r)towcs() with NULL output pointer
+ // to just get the size of the needed buffer -- this is needed as otherwise
+ // we have no idea about how much space we need and if the CRT doesn't
+ // support it (the only currently known example being Metrowerks, see
+ // wx/wxchar.h) we don't use its mbstowcs() at all
+#ifdef HAVE_WCSRTOMBS
+ return mbsrtowcs((wchar_t *) NULL, &psz, 0, &mbstate);
+#else
+ return wxMbstowcs((wchar_t *) NULL, psz, 0);
+#endif
+}
+
+size_t WXDLLEXPORT wxWC2MB(char *buf, const wchar_t *pwz, size_t n)
+{
+#ifdef HAVE_WCSRTOMBS
+ mbstate_t mbstate;
+ memset(&mbstate, 0, sizeof(mbstate_t));
+#endif
+
+ if (buf) {
+ if (!n || !*pwz) {
+ // glibc2.1 chokes on null input
+ if (n) *buf = '\0';
+ return 0;
+ }
+#ifdef HAVE_WCSRTOMBS
+ return wcsrtombs(buf, &pwz, n, &mbstate);
+#else
+ return wxWcstombs(buf, pwz, n);
+#endif
+ }
+
+#ifdef HAVE_WCSRTOMBS
+ return wcsrtombs((char *) NULL, &pwz, 0, &mbstate);
+#else
+ return wxWcstombs((char *) NULL, pwz, 0);
+#endif
+}
+#endif // wxUSE_WCHAR_T
+
+bool WXDLLEXPORT wxOKlibc()
+{
+#if wxUSE_WCHAR_T && defined(__UNIX__) && defined(__GLIBC__) && !defined(__WINE__)
+ // glibc 2.0 uses UTF-8 even when it shouldn't
+ wchar_t res = 0;
+ if ((MB_CUR_MAX == 2) &&
+ (wxMB2WC(&res, "\xdd\xa5", 1) == 1) &&
+ (res==0x765)) {
+ // this is UTF-8 allright, check whether that's what we want
+ char *cur_locale = setlocale(LC_CTYPE, NULL);
+ if ((strlen(cur_locale) < 4) ||
+ (strcasecmp(cur_locale + strlen(cur_locale) - 4, "utf8")) ||
+ (strcasecmp(cur_locale + strlen(cur_locale) - 5, "utf-8"))) {
+ // nope, don't use libc conversion
+ return false;
+ }
+ }
+#endif
+ return true;
+}
+
+// ============================================================================
+// printf() functions business
+// ============================================================================
+
+// special test mode: define all functions below even if we don't really need
+// them to be able to test them
+#ifdef wxTEST_PRINTF
+ #undef wxFprintf
+ #undef wxPrintf
+ #undef wxSprintf
+ #undef wxVfprintf
+ #undef wxVsprintf
+ #undef wxVprintf
+ #undef wxVsnprintf_
+ #undef wxSnprintf_
+
+ #define wxNEED_WPRINTF
+
+ int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr );
+#endif
+
+// ----------------------------------------------------------------------------
+// implement [v]snprintf() if the system doesn't provide a safe one
+// or if the system's one does not support positional parameters
+// (very useful for i18n purposes)
+// ----------------------------------------------------------------------------
+
+#if !defined(wxVsnprintf_)
+
+// wxUSE_STRUTILS says our wxVsnprintf_ implementation to use or not to
+// use wxStrlen and wxStrncpy functions over one-char processing loops.
+//
+// Some benchmarking revealed that wxUSE_STRUTILS == 1 has the following
+// effects:
+// -> on Windows:
+// when in ANSI mode, this setting does not change almost anything
+// when in Unicode mode, it gives ~ 50% of slowdown !
+// -> on Linux:
+// both in ANSI and Unicode mode it gives ~ 60% of speedup !
+//
+#if defined(WIN32) && wxUSE_UNICODE
+#define wxUSE_STRUTILS 0
+#else
+#define wxUSE_STRUTILS 1
+#endif
+
+// some limits of our implementation
+#define wxMAX_SVNPRINTF_ARGUMENTS 16
+#define wxMAX_SVNPRINTF_FLAGBUFFER_LEN 32
+#define wxMAX_SVNPRINTF_SCRATCHBUFFER_LEN 512
+
+
+// wxVsnprintf() needs to use a *system* implementation of swnprintf()
+// in order to perform some internal tasks.
+// NB: we cannot just use wxSnprintf() because for some systems it maybe
+// implemented later in this file using wxVsnprintf() and that would
+// result in an endless recursion and thus in a stack overflow
+#if wxUSE_UNICODE
+ #if defined(__WINDOWS__) && !defined(HAVE_SWPRINTF)
+ // all compilers under Windows should have swprintf()
+ #define HAVE_SWPRINTF
+ #endif
+
+ // NB: MSVC 6 has only non-standard swprintf() declaration and while MSVC 7
+ // and 7.1 do have the standard one, it's completely broken unless
+ // /Zc:wchar_t is used while the other one works so use it instead, and
+ // only VC8 has a working standard-compliant swprintf()
+ #if defined(__WXWINCE__) || \
+ (defined(__VISUALC__) && __VISUALC__ < 1400) || \
+ defined(__GNUWIN32__) || \
+ defined(__BORLANDC__)
+ #ifndef HAVE_BROKEN_SWPRINTF_DECL
+ #define HAVE_BROKEN_SWPRINTF_DECL
+ #endif
+ #endif
+
+ // problem: on some systems swprintf takes the 'max' argument while on
+ // others it doesn't
+ #if defined(HAVE_BROKEN_SWPRINTF_DECL)
+ // like when using sprintf(), since 'max' is not used, wxVsnprintf()
+ // should always ensure that 'buff' is big enough for all common needs
+ #define system_sprintf(buff, max, flags, data) \
+ ::swprintf(buff, flags, data)
+
+ #define SYSTEM_SPRINTF_IS_UNSAFE
+ #else
+ #if !defined(HAVE_SWPRINTF)
+ #error wxVsnprintf() needs a system swprintf() implementation!
+ #endif
+
+ #define system_sprintf(buff, max, flags, data) \
+ ::swprintf(buff, max, flags, data)
+ #endif
+#else // !wxUSE_UNICODE
+ #if defined(__VISUALC__) || \
+ (defined(__BORLANDC__) && __BORLANDC__ >= 0x540)
+ #define system_sprintf(buff, max, flags, data) \
+ ::_snprintf(buff, max, flags, data)
+ #elif defined(HAVE_SNPRINTF)
+ #define system_sprintf(buff, max, flags, data) \
+ ::snprintf(buff, max, flags, data)
+ #else // NB: at least sprintf() should always be available
+ // since 'max' is not used in this case, wxVsnprintf() should always
+ // ensure that 'buff' is big enough for all common needs
+ // (see wxMAX_SVNPRINTF_FLAGBUFFER_LEN and wxMAX_SVNPRINTF_SCRATCHBUFFER_LEN)
+ #define system_sprintf(buff, max, flags, data) \
+ ::sprintf(buff, flags, data)
+
+ #define SYSTEM_SPRINTF_IS_UNSAFE
+ #endif
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE
+
+
+
+// the conversion specifiers accepted by wxVsnprintf_
+enum wxPrintfArgType {
+ wxPAT_INVALID = -1,
+
+ wxPAT_INT, // %d, %i, %o, %u, %x, %X
+ wxPAT_LONGINT, // %ld, etc
+#if SIZEOF_LONG_LONG
+ wxPAT_LONGLONGINT, // %Ld, etc
+#endif
+ wxPAT_SIZET, // %Zd, etc
+
+ wxPAT_DOUBLE, // %e, %E, %f, %g, %G
+ wxPAT_LONGDOUBLE, // %le, etc
+
+ wxPAT_POINTER, // %p
+
+ wxPAT_CHAR, // %hc (in ANSI mode: %c, too)
+ wxPAT_WCHAR, // %lc (in Unicode mode: %c, too)
+
+ wxPAT_PCHAR, // %s (related to a char *)
+ wxPAT_PWCHAR, // %s (related to a wchar_t *)
+
+ wxPAT_NINT, // %n
+ wxPAT_NSHORTINT, // %hn
+ wxPAT_NLONGINT // %ln
+};
+
+// an argument passed to wxVsnprintf_
+typedef union {
+ int pad_int; // %d, %i, %o, %u, %x, %X
+ long int pad_longint; // %ld, etc
+#if SIZEOF_LONG_LONG
+ long long int pad_longlongint; // %Ld, etc
+#endif
+ size_t pad_sizet; // %Zd, etc
+
+ double pad_double; // %e, %E, %f, %g, %G
+ long double pad_longdouble; // %le, etc
+
+ void *pad_pointer; // %p
+
+ char pad_char; // %hc (in ANSI mode: %c, too)
+ wchar_t pad_wchar; // %lc (in Unicode mode: %c, too)
+
+ char *pad_pchar; // %s (related to a char *)
+ wchar_t *pad_pwchar; // %s (related to a wchar_t *)
+
+ int *pad_nint; // %n
+ short int *pad_nshortint; // %hn
+ long int *pad_nlongint; // %ln
+} wxPrintfArg;
+
+
+// Contains parsed data relative to a conversion specifier given to
+// wxVsnprintf_ and parsed from the format string
+// NOTE: in C++ there is almost no difference between struct & classes thus
+// there is no performance gain by using a struct here...
+class wxPrintfConvSpec
+{
+public:
+
+ // the position of the argument relative to this conversion specifier
+ size_t m_pos;
+
+ // the type of this conversion specifier
+ wxPrintfArgType m_type;
+
+ // the minimum and maximum width
+ // when one of this var is set to -1 it means: use the following argument
+ // in the stack as minimum/maximum width for this conversion specifier
+ int m_nMinWidth, m_nMaxWidth;
+
+ // does the argument need to the be aligned to left ?
+ bool m_bAlignLeft;
+
+ // pointer to the '%' of this conversion specifier in the format string
+ // NOTE: this points somewhere in the string given to the Parse() function -
+ // it's task of the caller ensure that memory is still valid !
+ const wxChar *m_pArgPos;
+
+ // pointer to the last character of this conversion specifier in the
+ // format string
+ // NOTE: this points somewhere in the string given to the Parse() function -
+ // it's task of the caller ensure that memory is still valid !
+ const wxChar *m_pArgEnd;
+
+ // a little buffer where formatting flags like #+\.hlqLZ are stored by Parse()
+ // for use in Process()
+ // NB: even if this buffer is used only for numeric conversion specifiers and
+ // thus could be safely declared as a char[] buffer, we want it to be wxChar
+ // so that in Unicode builds we can avoid to convert its contents to Unicode
+ // chars when copying it in user's buffer.
+ wxChar m_szFlags[wxMAX_SVNPRINTF_FLAGBUFFER_LEN];
+
+
+public:
+
+ // we don't declare this as a constructor otherwise it would be called
+ // automatically and we don't want this: to be optimized, wxVsnprintf_
+ // calls this function only on really-used instances of this class.
+ void Init();
+
+ // Parses the first conversion specifier in the given string, which must
+ // begin with a '%'. Returns false if the first '%' does not introduce a
+ // (valid) conversion specifier and thus should be ignored.
+ bool Parse(const wxChar *format);
+
+ // Process this conversion specifier and puts the result in the given
+ // buffer. Returns the number of characters written in 'buf' or -1 if
+ // there's not enough space.
+ int Process(wxChar *buf, size_t lenMax, wxPrintfArg *p);
+
+ // Loads the argument of this conversion specifier from given va_list.
+ bool LoadArg(wxPrintfArg *p, va_list &argptr);
+
+private:
+ // An helper function of LoadArg() which is used to handle the '*' flag
+ void ReplaceAsteriskWith(int w);
+};
+
+void wxPrintfConvSpec::Init()
+{
+ m_nMinWidth = 0;
+ m_nMaxWidth = 0xFFFF;
+ m_pos = 0;
+ m_bAlignLeft = false;
+ m_pArgPos = m_pArgEnd = NULL;
+ m_type = wxPAT_INVALID;
+
+ // this character will never be removed from m_szFlags array and
+ // is important when calling sprintf() in wxPrintfConvSpec::Process() !
+ m_szFlags[0] = wxT('%');
+}
+
+bool wxPrintfConvSpec::Parse(const wxChar *format)
+{
+ bool done = false;
+
+ // temporary parse data
+ size_t flagofs = 1;
+ bool in_prec, prec_dot;
+ int ilen = 0;
+
+ m_bAlignLeft = in_prec = prec_dot = false;
+ m_pArgPos = m_pArgEnd = format;
+ do
+ {
+#define CHECK_PREC \
+ if (in_prec && !prec_dot) \
+ { \
+ m_szFlags[flagofs++] = wxT('.'); \
+ prec_dot = true; \
+ }
+
+ // what follows '%'?
+ const wxChar ch = *(++m_pArgEnd);
+ switch ( ch )
+ {
+ case wxT('\0'):
+ return false; // not really an argument
+
+ case wxT('%'):
+ return false; // not really an argument
+
+ case wxT('#'):
+ case wxT('0'):
+ case wxT(' '):
+ case wxT('+'):
+ case wxT('\''):
+ CHECK_PREC
+ m_szFlags[flagofs++] = ch;
+ break;
+
+ case wxT('-'):
+ CHECK_PREC
+ m_bAlignLeft = true;
+ m_szFlags[flagofs++] = ch;
+ break;
+
+ case wxT('.'):
+ CHECK_PREC
+ in_prec = true;
+ prec_dot = false;
+ m_nMaxWidth = 0;
+ // dot will be auto-added to m_szFlags if non-negative
+ // number follows
+ break;
+
+ case wxT('h'):
+ ilen = -1;
+ CHECK_PREC
+ m_szFlags[flagofs++] = ch;
+ break;
+
+ case wxT('l'):
+ // NB: it's safe to use flagofs-1 as flagofs always start from 1
+ if (m_szFlags[flagofs-1] == 'l') // 'll' modifier is the same as 'L' or 'q'
+ ilen = 2;
+ else
+ ilen = 1;
+ CHECK_PREC
+ m_szFlags[flagofs++] = ch;
+ break;
+
+ case wxT('q'):
+ case wxT('L'):
+ ilen = 2;
+ CHECK_PREC
+ m_szFlags[flagofs++] = ch;
+ break;
+
+ case wxT('Z'):
+ ilen = 3;
+ CHECK_PREC
+ m_szFlags[flagofs++] = ch;
+ break;
+
+ case wxT('*'):
+ if (in_prec)
+ {
+ CHECK_PREC
+
+ // tell Process() to use the next argument
+ // in the stack as maxwidth...
+ m_nMaxWidth = -1;
+ }
+ else
+ {
+ // tell Process() to use the next argument
+ // in the stack as minwidth...
+ m_nMinWidth = -1;
+ }
+
+ // save the * in our formatting buffer...
+ // will be replaced later by Process()
+ m_szFlags[flagofs++] = ch;
+ break;
+
+ case wxT('1'): case wxT('2'): case wxT('3'):
+ case wxT('4'): case wxT('5'): case wxT('6'):
+ case wxT('7'): case wxT('8'): case wxT('9'):
+ {
+ int len = 0;
+ CHECK_PREC
+ while ( (*m_pArgEnd >= wxT('0')) &&
+ (*m_pArgEnd <= wxT('9')) )
+ {
+ m_szFlags[flagofs++] = (*m_pArgEnd);
+ len = len*10 + (*m_pArgEnd - wxT('0'));
+ m_pArgEnd++;
+ }
+
+ if (in_prec)
+ m_nMaxWidth = len;
+ else
+ m_nMinWidth = len;
+
+ m_pArgEnd--; // the main loop pre-increments n again
+ }
+ break;
+
+ case wxT('$'): // a positional parameter (e.g. %2$s) ?
+ {
+ if (m_nMinWidth <= 0)
+ break; // ignore this formatting flag as no
+ // numbers are preceding it
+
+ // remove from m_szFlags all digits previously added
+ do {
+ flagofs--;
+ } while (m_szFlags[flagofs] >= '1' &&
+ m_szFlags[flagofs] <= '9');
+
+ // re-adjust the offset making it point to the
+ // next free char of m_szFlags
+ flagofs++;
+
+ m_pos = m_nMinWidth;
+ m_nMinWidth = 0;
+ }
+ break;
+
+ case wxT('d'):
+ case wxT('i'):
+ case wxT('o'):
+ case wxT('u'):
+ case wxT('x'):
+ case wxT('X'):
+ CHECK_PREC
+ m_szFlags[flagofs++] = ch;
+ m_szFlags[flagofs] = wxT('\0');
+ if (ilen == 0)
+ m_type = wxPAT_INT;
+ else if (ilen == -1)
+ // NB: 'short int' value passed through '...'
+ // is promoted to 'int', so we have to get
+ // an int from stack even if we need a short
+ m_type = wxPAT_INT;
+ else if (ilen == 1)
+ m_type = wxPAT_LONGINT;
+ else if (ilen == 2)
+#if SIZEOF_LONG_LONG
+ m_type = wxPAT_LONGLONGINT;
+#else // !long long
+ m_type = wxPAT_LONGINT;
+#endif // long long/!long long
+ else if (ilen == 3)
+ m_type = wxPAT_SIZET;
+ done = true;
+ break;
+
+ case wxT('e'):
+ case wxT('E'):
+ case wxT('f'):
+ case wxT('g'):
+ case wxT('G'):
+ CHECK_PREC
+ m_szFlags[flagofs++] = ch;
+ m_szFlags[flagofs] = wxT('\0');
+ if (ilen == 2)
+ m_type = wxPAT_LONGDOUBLE;
+ else
+ m_type = wxPAT_DOUBLE;
+ done = true;
+ break;
+
+ case wxT('p'):
+ m_type = wxPAT_POINTER;
+ m_szFlags[flagofs++] = ch;
+ m_szFlags[flagofs] = '\0';
+ done = true;
+ break;
+
+ case wxT('c'):
+ if (ilen == -1)
+ {
+ // in Unicode mode %hc == ANSI character
+ // and in ANSI mode, %hc == %c == ANSI...
+ m_type = wxPAT_CHAR;
+ }
+ else if (ilen == 1)
+ {
+ // in ANSI mode %lc == Unicode character
+ // and in Unicode mode, %lc == %c == Unicode...
+ m_type = wxPAT_WCHAR;
+ }
+ else
+ {
+#if wxUSE_UNICODE
+ // in Unicode mode, %c == Unicode character
+ m_type = wxPAT_WCHAR;
+#else
+ // in ANSI mode, %c == ANSI character
+ m_type = wxPAT_CHAR;
+#endif
+ }
+ done = true;
+ break;
+
+ case wxT('s'):
+ if (ilen == -1)
+ {
+ // Unicode mode wx extension: we'll let %hs mean non-Unicode
+ // strings (when in ANSI mode, %s == %hs == ANSI string)
+ m_type = wxPAT_PCHAR;
+ }
+ else if (ilen == 1)
+ {
+ // in Unicode mode, %ls == %s == Unicode string
+ // in ANSI mode, %ls == Unicode string
+ m_type = wxPAT_PWCHAR;
+ }
+ else
+ {
+#if wxUSE_UNICODE
+ m_type = wxPAT_PWCHAR;
+#else
+ m_type = wxPAT_PCHAR;
+#endif
+ }
+ done = true;
+ break;
+
+ case wxT('n'):
+ if (ilen == 0)
+ m_type = wxPAT_NINT;
+ else if (ilen == -1)
+ m_type = wxPAT_NSHORTINT;
+ else if (ilen >= 1)
+ m_type = wxPAT_NLONGINT;
+ done = true;
+ break;
+
+ default:
+ // bad format, don't consider this an argument;
+ // leave it unchanged
+ return false;
+ }
+
+ if (flagofs == wxMAX_SVNPRINTF_FLAGBUFFER_LEN)
+ {
+ wxLogDebug(wxT("Too many flags specified for a single conversion specifier!"));
+ return false;
+ }
+ }
+ while (!done);
+
+ return true; // parsing was successful
+}
+
+
+void wxPrintfConvSpec::ReplaceAsteriskWith(int width)
+{
+ wxChar temp[wxMAX_SVNPRINTF_FLAGBUFFER_LEN];
+
+ // find the first * in our flag buffer
+ wxChar *pwidth = wxStrchr(m_szFlags, wxT('*'));
+ wxASSERT(pwidth);
+
+ // save what follows the * (the +1 is to skip the asterisk itself!)
+ wxStrcpy(temp, pwidth+1);
+ if (width < 0)
+ {
+ pwidth[0] = wxT('-');
+ pwidth++;
+ }
+
+ // replace * with the actual integer given as width
+#ifndef SYSTEM_SPRINTF_IS_UNSAFE
+ int maxlen = (m_szFlags + wxMAX_SVNPRINTF_FLAGBUFFER_LEN - pwidth) /
+ sizeof(wxChar);
+#endif
+ int offset = system_sprintf(pwidth, maxlen, wxT("%d"), abs(width));
+
+ // restore after the expanded * what was following it
+ wxStrcpy(pwidth+offset, temp);
+}
+
+bool wxPrintfConvSpec::LoadArg(wxPrintfArg *p, va_list &argptr)
+{
+ // did the '*' width/precision specifier was used ?
+ if (m_nMaxWidth == -1)
+ {
+ // take the maxwidth specifier from the stack
+ m_nMaxWidth = va_arg(argptr, int);
+ if (m_nMaxWidth < 0)
+ m_nMaxWidth = 0;
+ else
+ ReplaceAsteriskWith(m_nMaxWidth);
+ }
+
+ if (m_nMinWidth == -1)
+ {
+ // take the minwidth specifier from the stack
+ m_nMinWidth = va_arg(argptr, int);
+
+ ReplaceAsteriskWith(m_nMinWidth);
+ if (m_nMinWidth < 0)
+ {
+ m_bAlignLeft = !m_bAlignLeft;
+ m_nMinWidth = -m_nMinWidth;
+ }
+ }
+
+ switch (m_type) {
+ case wxPAT_INT:
+ p->pad_int = va_arg(argptr, int);
+ break;
+ case wxPAT_LONGINT:
+ p->pad_longint = va_arg(argptr, long int);
+ break;
+#if SIZEOF_LONG_LONG
+ case wxPAT_LONGLONGINT:
+ p->pad_longlongint = va_arg(argptr, long long int);
+ break;
projects / wxWidgets.git / blobdiff