| /* |
| * wsprintf functions |
| * |
| * Copyright 1996 Alexandre Julliard |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| * |
| * NOTE: |
| * This code is duplicated in user32. If you change something here make sure |
| * to change it in user32 too. |
| */ |
| |
| #include <stdarg.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #define NO_SHLWAPI_REG |
| #include "shlwapi.h" |
| |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(string); |
| |
| |
| #define WPRINTF_LEFTALIGN 0x0001 /* Align output on the left ('-' prefix) */ |
| #define WPRINTF_PREFIX_HEX 0x0002 /* Prefix hex with 0x ('#' prefix) */ |
| #define WPRINTF_ZEROPAD 0x0004 /* Pad with zeros ('0' prefix) */ |
| #define WPRINTF_LONG 0x0008 /* Long arg ('l' prefix) */ |
| #define WPRINTF_SHORT 0x0010 /* Short arg ('h' prefix) */ |
| #define WPRINTF_UPPER_HEX 0x0020 /* Upper-case hex ('X' specifier) */ |
| #define WPRINTF_WIDE 0x0040 /* Wide arg ('w' prefix) */ |
| |
| typedef enum |
| { |
| WPR_UNKNOWN, |
| WPR_CHAR, |
| WPR_WCHAR, |
| WPR_STRING, |
| WPR_WSTRING, |
| WPR_SIGNED, |
| WPR_UNSIGNED, |
| WPR_HEXA |
| } WPRINTF_TYPE; |
| |
| typedef struct |
| { |
| UINT flags; |
| UINT width; |
| UINT precision; |
| WPRINTF_TYPE type; |
| } WPRINTF_FORMAT; |
| |
| typedef union { |
| WCHAR wchar_view; |
| CHAR char_view; |
| LPCSTR lpcstr_view; |
| LPCWSTR lpcwstr_view; |
| INT int_view; |
| } WPRINTF_DATA; |
| |
| static const CHAR null_stringA[] = "(null)"; |
| static const WCHAR null_stringW[] = { '(', 'n', 'u', 'l', 'l', ')', 0 }; |
| |
| /*********************************************************************** |
| * WPRINTF_ParseFormatA |
| * |
| * Parse a format specification. A format specification has the form: |
| * |
| * [-][#][0][width][.precision]type |
| * |
| * Return value is the length of the format specification in characters. |
| */ |
| static INT WPRINTF_ParseFormatA( LPCSTR format, WPRINTF_FORMAT *res ) |
| { |
| LPCSTR p = format; |
| |
| res->flags = 0; |
| res->width = 0; |
| res->precision = 0; |
| if (*p == '-') { res->flags |= WPRINTF_LEFTALIGN; p++; } |
| if (*p == '#') { res->flags |= WPRINTF_PREFIX_HEX; p++; } |
| if (*p == '0') { res->flags |= WPRINTF_ZEROPAD; p++; } |
| while ((*p >= '0') && (*p <= '9')) /* width field */ |
| { |
| res->width = res->width * 10 + *p - '0'; |
| p++; |
| } |
| if (*p == '.') /* precision field */ |
| { |
| p++; |
| while ((*p >= '0') && (*p <= '9')) |
| { |
| res->precision = res->precision * 10 + *p - '0'; |
| p++; |
| } |
| } |
| if (*p == 'l') { res->flags |= WPRINTF_LONG; p++; } |
| else if (*p == 'h') { res->flags |= WPRINTF_SHORT; p++; } |
| else if (*p == 'w') { res->flags |= WPRINTF_WIDE; p++; } |
| switch(*p) |
| { |
| case 'c': |
| res->type = (res->flags & WPRINTF_LONG) ? WPR_WCHAR : WPR_CHAR; |
| break; |
| case 'C': |
| res->type = (res->flags & WPRINTF_SHORT) ? WPR_CHAR : WPR_WCHAR; |
| break; |
| case 'd': |
| case 'i': |
| res->type = WPR_SIGNED; |
| break; |
| case 's': |
| res->type = (res->flags & (WPRINTF_LONG |WPRINTF_WIDE)) ? WPR_WSTRING : WPR_STRING; |
| break; |
| case 'S': |
| res->type = (res->flags & (WPRINTF_SHORT|WPRINTF_WIDE)) ? WPR_STRING : WPR_WSTRING; |
| break; |
| case 'u': |
| res->type = WPR_UNSIGNED; |
| break; |
| case 'X': |
| res->flags |= WPRINTF_UPPER_HEX; |
| /* fall through */ |
| case 'x': |
| res->type = WPR_HEXA; |
| break; |
| default: /* unknown format char */ |
| res->type = WPR_UNKNOWN; |
| p--; /* print format as normal char */ |
| break; |
| } |
| return (INT)(p - format) + 1; |
| } |
| |
| |
| /*********************************************************************** |
| * WPRINTF_ParseFormatW |
| * |
| * Parse a format specification. A format specification has the form: |
| * |
| * [-][#][0][width][.precision]type |
| * |
| * Return value is the length of the format specification in characters. |
| */ |
| static INT WPRINTF_ParseFormatW( LPCWSTR format, WPRINTF_FORMAT *res ) |
| { |
| LPCWSTR p = format; |
| |
| res->flags = 0; |
| res->width = 0; |
| res->precision = 0; |
| if (*p == '-') { res->flags |= WPRINTF_LEFTALIGN; p++; } |
| if (*p == '#') { res->flags |= WPRINTF_PREFIX_HEX; p++; } |
| if (*p == '0') { res->flags |= WPRINTF_ZEROPAD; p++; } |
| while ((*p >= '0') && (*p <= '9')) /* width field */ |
| { |
| res->width = res->width * 10 + *p - '0'; |
| p++; |
| } |
| if (*p == '.') /* precision field */ |
| { |
| p++; |
| while ((*p >= '0') && (*p <= '9')) |
| { |
| res->precision = res->precision * 10 + *p - '0'; |
| p++; |
| } |
| } |
| if (*p == 'l') { res->flags |= WPRINTF_LONG; p++; } |
| else if (*p == 'h') { res->flags |= WPRINTF_SHORT; p++; } |
| else if (*p == 'w') { res->flags |= WPRINTF_WIDE; p++; } |
| switch((CHAR)*p) |
| { |
| case 'c': |
| res->type = (res->flags & WPRINTF_SHORT) ? WPR_CHAR : WPR_WCHAR; |
| break; |
| case 'C': |
| res->type = (res->flags & WPRINTF_LONG) ? WPR_WCHAR : WPR_CHAR; |
| break; |
| case 'd': |
| case 'i': |
| res->type = WPR_SIGNED; |
| break; |
| case 's': |
| res->type = ((res->flags & WPRINTF_SHORT) && !(res->flags & WPRINTF_WIDE)) ? WPR_STRING : WPR_WSTRING; |
| break; |
| case 'S': |
| res->type = (res->flags & (WPRINTF_LONG|WPRINTF_WIDE)) ? WPR_WSTRING : WPR_STRING; |
| break; |
| case 'u': |
| res->type = WPR_UNSIGNED; |
| break; |
| case 'X': |
| res->flags |= WPRINTF_UPPER_HEX; |
| /* fall through */ |
| case 'x': |
| res->type = WPR_HEXA; |
| break; |
| default: |
| res->type = WPR_UNKNOWN; |
| p--; /* print format as normal char */ |
| break; |
| } |
| return (INT)(p - format) + 1; |
| } |
| |
| |
| /*********************************************************************** |
| * WPRINTF_GetLen |
| */ |
| static UINT WPRINTF_GetLen( WPRINTF_FORMAT *format, WPRINTF_DATA *arg, |
| LPSTR number, UINT maxlen ) |
| { |
| UINT len; |
| |
| if (format->flags & WPRINTF_LEFTALIGN) format->flags &= ~WPRINTF_ZEROPAD; |
| if (format->width > maxlen) format->width = maxlen; |
| switch(format->type) |
| { |
| case WPR_CHAR: |
| case WPR_WCHAR: |
| return (format->precision = 1); |
| case WPR_STRING: |
| if (!arg->lpcstr_view) arg->lpcstr_view = null_stringA; |
| for (len = 0; !format->precision || (len < format->precision); len++) |
| if (!*(arg->lpcstr_view + len)) break; |
| if (len > maxlen) len = maxlen; |
| return (format->precision = len); |
| case WPR_WSTRING: |
| if (!arg->lpcwstr_view) arg->lpcwstr_view = null_stringW; |
| for (len = 0; !format->precision || (len < format->precision); len++) |
| if (!*(arg->lpcwstr_view + len)) break; |
| if (len > maxlen) len = maxlen; |
| return (format->precision = len); |
| case WPR_SIGNED: |
| len = sprintf( number, "%d", arg->int_view ); |
| break; |
| case WPR_UNSIGNED: |
| len = sprintf( number, "%u", (UINT)arg->int_view ); |
| break; |
| case WPR_HEXA: |
| len = sprintf( number, |
| (format->flags & WPRINTF_UPPER_HEX) ? "%X" : "%x", |
| (UINT)arg->int_view); |
| break; |
| default: |
| return 0; |
| } |
| if (len > maxlen) len = maxlen; |
| if (format->precision < len) format->precision = len; |
| if (format->precision > maxlen) format->precision = maxlen; |
| if ((format->flags & WPRINTF_ZEROPAD) && (format->width > format->precision)) |
| format->precision = format->width; |
| if (format->flags & WPRINTF_PREFIX_HEX) len += 2; |
| return len; |
| } |
| |
| |
| /*********************************************************************** |
| * wvnsprintfA (SHLWAPI.@) |
| * |
| * Print formatted output to a string, up to a maximum number of chars. |
| * |
| * PARAMS |
| * buffer [O] Destination for output string |
| * maxlen [I] Maximum number of characters to write |
| * spec [I] Format string |
| * |
| * RETURNS |
| * Success: The number of characters written. |
| * Failure: -1. |
| */ |
| INT WINAPI wvnsprintfA( LPSTR buffer, INT maxlen, LPCSTR spec, va_list args ) |
| { |
| WPRINTF_FORMAT format; |
| LPSTR p = buffer; |
| UINT i, len, sign; |
| CHAR number[20]; |
| WPRINTF_DATA argData; |
| |
| TRACE("%p %u %s\n", buffer, maxlen, debugstr_a(spec)); |
| |
| while (*spec && (maxlen > 1)) |
| { |
| if (*spec != '%') { *p++ = *spec++; maxlen--; continue; } |
| spec++; |
| if (*spec == '%') { *p++ = *spec++; maxlen--; continue; } |
| spec += WPRINTF_ParseFormatA( spec, &format ); |
| |
| switch(format.type) |
| { |
| case WPR_WCHAR: |
| argData.wchar_view = (WCHAR)va_arg( args, int ); |
| break; |
| case WPR_CHAR: |
| argData.char_view = (CHAR)va_arg( args, int ); |
| break; |
| case WPR_STRING: |
| argData.lpcstr_view = va_arg( args, LPCSTR ); |
| break; |
| case WPR_WSTRING: |
| argData.lpcwstr_view = va_arg( args, LPCWSTR ); |
| break; |
| case WPR_HEXA: |
| case WPR_SIGNED: |
| case WPR_UNSIGNED: |
| argData.int_view = va_arg( args, INT ); |
| break; |
| default: |
| argData.wchar_view = 0; |
| break; |
| } |
| |
| len = WPRINTF_GetLen( &format, &argData, number, maxlen - 1 ); |
| sign = 0; |
| if (!(format.flags & WPRINTF_LEFTALIGN)) |
| for (i = format.precision; i < format.width; i++, maxlen--) |
| *p++ = ' '; |
| switch(format.type) |
| { |
| case WPR_WCHAR: |
| *p++ = argData.wchar_view; |
| break; |
| case WPR_CHAR: |
| *p++ = argData.char_view; |
| break; |
| case WPR_STRING: |
| memcpy( p, argData.lpcstr_view, len ); |
| p += len; |
| break; |
| case WPR_WSTRING: |
| { |
| LPCWSTR ptr = argData.lpcwstr_view; |
| for (i = 0; i < len; i++) *p++ = (CHAR)*ptr++; |
| } |
| break; |
| case WPR_HEXA: |
| if ((format.flags & WPRINTF_PREFIX_HEX) && (maxlen > 3)) |
| { |
| *p++ = '0'; |
| *p++ = (format.flags & WPRINTF_UPPER_HEX) ? 'X' : 'x'; |
| maxlen -= 2; |
| len -= 2; |
| } |
| /* fall through */ |
| case WPR_SIGNED: |
| /* Transfer the sign now, just in case it will be zero-padded*/ |
| if (number[0] == '-') |
| { |
| *p++ = '-'; |
| sign = 1; |
| } |
| /* fall through */ |
| case WPR_UNSIGNED: |
| for (i = len; i < format.precision; i++, maxlen--) *p++ = '0'; |
| memcpy( p, number + sign, len - sign ); |
| p += len - sign; |
| break; |
| case WPR_UNKNOWN: |
| continue; |
| } |
| if (format.flags & WPRINTF_LEFTALIGN) |
| for (i = format.precision; i < format.width; i++, maxlen--) |
| *p++ = ' '; |
| maxlen -= len; |
| } |
| *p = 0; |
| TRACE("%s\n",debugstr_a(buffer)); |
| return (maxlen > 1) ? (INT)(p - buffer) : -1; |
| } |
| |
| |
| /*********************************************************************** |
| * wvnsprintfW (SHLWAPI.@) |
| * |
| * See wvnsprintfA. |
| */ |
| INT WINAPI wvnsprintfW( LPWSTR buffer, INT maxlen, LPCWSTR spec, va_list args ) |
| { |
| WPRINTF_FORMAT format; |
| LPWSTR p = buffer; |
| UINT i, len, sign; |
| CHAR number[20]; |
| WPRINTF_DATA argData; |
| |
| TRACE("%p %u %s\n", buffer, maxlen, debugstr_w(spec)); |
| |
| while (*spec && (maxlen > 1)) |
| { |
| if (*spec != '%') { *p++ = *spec++; maxlen--; continue; } |
| spec++; |
| if (*spec == '%') { *p++ = *spec++; maxlen--; continue; } |
| spec += WPRINTF_ParseFormatW( spec, &format ); |
| |
| switch(format.type) |
| { |
| case WPR_WCHAR: |
| argData.wchar_view = (WCHAR)va_arg( args, int ); |
| break; |
| case WPR_CHAR: |
| argData.char_view = (CHAR)va_arg( args, int ); |
| break; |
| case WPR_STRING: |
| argData.lpcstr_view = va_arg( args, LPCSTR ); |
| break; |
| case WPR_WSTRING: |
| argData.lpcwstr_view = va_arg( args, LPCWSTR ); |
| break; |
| case WPR_HEXA: |
| case WPR_SIGNED: |
| case WPR_UNSIGNED: |
| argData.int_view = va_arg( args, INT ); |
| break; |
| default: |
| argData.wchar_view = 0; |
| break; |
| } |
| |
| len = WPRINTF_GetLen( &format, &argData, number, maxlen - 1 ); |
| sign = 0; |
| if (!(format.flags & WPRINTF_LEFTALIGN)) |
| for (i = format.precision; i < format.width; i++, maxlen--) |
| *p++ = ' '; |
| switch(format.type) |
| { |
| case WPR_WCHAR: |
| *p++ = argData.wchar_view; |
| break; |
| case WPR_CHAR: |
| *p++ = argData.char_view; |
| break; |
| case WPR_STRING: |
| { |
| LPCSTR ptr = argData.lpcstr_view; |
| for (i = 0; i < len; i++) *p++ = (WCHAR)*ptr++; |
| } |
| break; |
| case WPR_WSTRING: |
| if (len) memcpy( p, argData.lpcwstr_view, len * sizeof(WCHAR) ); |
| p += len; |
| break; |
| case WPR_HEXA: |
| if ((format.flags & WPRINTF_PREFIX_HEX) && (maxlen > 3)) |
| { |
| *p++ = '0'; |
| *p++ = (format.flags & WPRINTF_UPPER_HEX) ? 'X' : 'x'; |
| maxlen -= 2; |
| len -= 2; |
| } |
| /* fall through */ |
| case WPR_SIGNED: |
| /* Transfer the sign now, just in case it will be zero-padded*/ |
| if (number[0] == '-') |
| { |
| *p++ = '-'; |
| sign = 1; |
| } |
| /* fall through */ |
| case WPR_UNSIGNED: |
| for (i = len; i < format.precision; i++, maxlen--) *p++ = '0'; |
| for (i = sign; i < len; i++) *p++ = (WCHAR)number[i]; |
| break; |
| case WPR_UNKNOWN: |
| continue; |
| } |
| if (format.flags & WPRINTF_LEFTALIGN) |
| for (i = format.precision; i < format.width; i++, maxlen--) |
| *p++ = ' '; |
| maxlen -= len; |
| } |
| *p = 0; |
| TRACE("%s\n",debugstr_w(buffer)); |
| return (maxlen > 1) ? (INT)(p - buffer) : -1; |
| } |
| |
| |
| /************************************************************************* |
| * wnsprintfA (SHLWAPI.@) |
| * |
| * Print formatted output to a string, up to a maximum number of chars. |
| * |
| * PARAMS |
| * lpOut [O] Destination for output string |
| * cchLimitIn [I] Maximum number of characters to write |
| * lpFmt [I] Format string |
| * |
| * RETURNS |
| * Success: The number of characters written. |
| * Failure: -1. |
| */ |
| int WINAPIV wnsprintfA(LPSTR lpOut, int cchLimitIn, LPCSTR lpFmt, ...) |
| { |
| va_list valist; |
| INT res; |
| |
| va_start( valist, lpFmt ); |
| res = wvnsprintfA( lpOut, cchLimitIn, lpFmt, valist ); |
| va_end( valist ); |
| return res; |
| } |
| |
| |
| /************************************************************************* |
| * wnsprintfW (SHLWAPI.@) |
| * |
| * See wnsprintfA. |
| */ |
| int WINAPIV wnsprintfW(LPWSTR lpOut, int cchLimitIn, LPCWSTR lpFmt, ...) |
| { |
| va_list valist; |
| INT res; |
| |
| va_start( valist, lpFmt ); |
| res = wvnsprintfW( lpOut, cchLimitIn, lpFmt, valist ); |
| va_end( valist ); |
| return res; |
| } |
