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Overview
| Comment: | Revise and enhance the Win32 string conversion routines. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | altShellFix |
| Files: | files | file ages | folders |
| SHA1: |
345860c92195544aad44ea9b0d14c9eb |
| User & Date: | mistachkin 2016-04-03 22:44:16.657 |
Context
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2016-04-04
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| 02:05 | More refactoring and cleanup work on the Win32 string conversion and utility routines. (check-in: 02ccb444a3 user: mistachkin tags: altShellFix) | |
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2016-04-03
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| 22:44 | Revise and enhance the Win32 string conversion routines. (check-in: 345860c921 user: mistachkin tags: altShellFix) | |
| 20:50 | Replace the new fprintf() calls. (check-in: f76c3a0ca4 user: mistachkin tags: altShellFix) | |
Changes
Changes to src/os_win.c.
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1631 1632 1633 1634 1635 1636 1637 | #endif /* SQLITE_WIN32_MALLOC */ /* ** Convert a UTF-8 string to Microsoft Unicode (UTF-16?). ** ** Space to hold the returned string is obtained from malloc. */ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > > > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > | | | | | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | | 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 |
#endif /* SQLITE_WIN32_MALLOC */
/*
** Convert a UTF-8 string to Microsoft Unicode (UTF-16?).
**
** Space to hold the returned string is obtained from malloc.
*/
static LPWSTR winUtf8ToUnicode(const char *zText){
int nChar;
LPWSTR zWideText;
nChar = osMultiByteToWideChar(CP_UTF8, 0, zText, -1, NULL, 0);
if( nChar==0 ){
return 0;
}
zWideText = sqlite3MallocZero( nChar*sizeof(WCHAR) );
if( zWideText==0 ){
return 0;
}
nChar = osMultiByteToWideChar(CP_UTF8, 0, zText, -1, zWideText,
nChar);
if( nChar==0 ){
sqlite3_free(zWideText);
zWideText = 0;
}
return zWideText;
}
/*
** Convert Microsoft Unicode to UTF-8. Space to hold the returned string is
** obtained from sqlite3_malloc().
*/
static char *winUnicodeToUtf8(LPCWSTR zWideText){
int nByte;
char *zText;
nByte = osWideCharToMultiByte(CP_UTF8, 0, zWideText, -1, 0, 0, 0, 0);
if( nByte == 0 ){
return 0;
}
zText = sqlite3MallocZero( nByte );
if( zText==0 ){
return 0;
}
nByte = osWideCharToMultiByte(CP_UTF8, 0, zWideText, -1, zText, nByte,
0, 0);
if( nByte == 0 ){
sqlite3_free(zText);
zText = 0;
}
return zText;
}
/*
** Convert an ANSI string to Microsoft Unicode, based on the
** current codepage settings for file apis.
**
** Space to hold the returned string is obtained
** from sqlite3_malloc.
*/
static LPWSTR winMbcsToUnicode(const char *zText, int useAnsi){
int nByte;
LPWSTR zMbcsFilename;
int codepage = useAnsi ? CP_ACP : CP_OEMCP;
nByte = osMultiByteToWideChar(codepage, 0, zText, -1, NULL,
0)*sizeof(WCHAR);
if( nByte==0 ){
return 0;
}
zMbcsFilename = sqlite3MallocZero( nByte*sizeof(zMbcsFilename[0]) );
if( zMbcsFilename==0 ){
return 0;
}
nByte = osMultiByteToWideChar(codepage, 0, zText, -1, zMbcsFilename,
nByte);
if( nByte==0 ){
sqlite3_free(zMbcsFilename);
zMbcsFilename = 0;
}
return zMbcsFilename;
}
/*
** Convert Microsoft Unicode to multi-byte character string, based on the
** user's ANSI codepage.
**
** Space to hold the returned string is obtained from
** sqlite3_malloc().
*/
static char *winUnicodeToMbcs(LPCWSTR zWideText, int useAnsi){
int nByte;
char *zText;
int codepage = useAnsi ? CP_ACP : CP_OEMCP;
nByte = osWideCharToMultiByte(codepage, 0, zWideText, -1, 0, 0, 0, 0);
if( nByte == 0 ){
return 0;
}
zText = sqlite3MallocZero( nByte );
if( zText==0 ){
return 0;
}
nByte = osWideCharToMultiByte(codepage, 0, zWideText, -1, zText,
nByte, 0, 0);
if( nByte == 0 ){
sqlite3_free(zText);
zText = 0;
}
return zText;
}
/*
** Convert multibyte character string to UTF-8. Space to hold the
** returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_mbcs_to_utf8(const char *zText){
char *zTextUtf8;
LPWSTR zTmpWide;
zTmpWide = winMbcsToUnicode(zText, osAreFileApisANSI());
if( zTmpWide==0 ){
return 0;
}
zTextUtf8 = winUnicodeToUtf8(zTmpWide);
sqlite3_free(zTmpWide);
return zTextUtf8;
}
/*
** Convert multibyte character string to UTF-8 using the ANSI codepage.
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_mbcs_to_utf8_via_ansi(const char *zText){
char *zTextUtf8;
LPWSTR zTmpWide;
zTmpWide = winMbcsToUnicode(zText, 1);
if( zTmpWide==0 ){
return 0;
}
zTextUtf8 = winUnicodeToUtf8(zTmpWide);
sqlite3_free(zTmpWide);
return zTextUtf8;
}
/*
** Convert multibyte character string to UTF-8 using the OEM codepage.
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_mbcs_to_utf8_via_oem(const char *zText){
char *zTextUtf8;
LPWSTR zTmpWide;
zTmpWide = winMbcsToUnicode(zText, 0);
if( zTmpWide==0 ){
return 0;
}
zTextUtf8 = winUnicodeToUtf8(zTmpWide);
sqlite3_free(zTmpWide);
return zTextUtf8;
}
/*
** Convert UTF-8 to multibyte character string. Space to hold the
** returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_utf8_to_mbcs(const char *zText){
char *zTextMbcs;
LPWSTR zTmpWide;
zTmpWide = winUtf8ToUnicode(zText);
if( zTmpWide==0 ){
return 0;
}
zTextMbcs = winUnicodeToMbcs(zTmpWide, osAreFileApisANSI());
sqlite3_free(zTmpWide);
return zTextMbcs;
}
/*
** Convert UTF-8 to multibyte character string using the ANSI codepage.
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_utf8_to_mbcs_via_ansi(const char *zText){
char *zTextMbcs;
LPWSTR zTmpWide;
zTmpWide = winUtf8ToUnicode(zText);
if( zTmpWide==0 ){
return 0;
}
zTextMbcs = winUnicodeToMbcs(zTmpWide, 1);
sqlite3_free(zTmpWide);
return zTextMbcs;
}
/*
** Convert UTF-8 to multibyte character string using the OEM codepage.
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_utf8_to_mbcs_via_oem(const char *zText){
char *zTextMbcs;
LPWSTR zTmpWide;
zTmpWide = winUtf8ToUnicode(zText);
if( zTmpWide==0 ){
return 0;
}
zTextMbcs = winUnicodeToMbcs(zTmpWide, 0);
sqlite3_free(zTmpWide);
return zTextMbcs;
}
/*
** This function sets the data directory or the temporary directory based on
** the provided arguments. The type argument must be 1 in order to set the
** data directory or 2 in order to set the temporary directory. The zValue
** argument is the name of the directory to use. The return value will be
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