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Diffstat (limited to 'scintilla/src/UnicodeFromUTF8.h')
| -rw-r--r-- | scintilla/src/UnicodeFromUTF8.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/scintilla/src/UnicodeFromUTF8.h b/scintilla/src/UnicodeFromUTF8.h new file mode 100644 index 0000000..24517e8 --- /dev/null +++ b/scintilla/src/UnicodeFromUTF8.h @@ -0,0 +1,19 @@ +// Scintilla source code edit control +/** @file UnicodeFromUTF8.h + ** Lexer infrastructure. + **/ +// Copyright 2013 by Neil Hodgson <neilh@scintilla.org> +// This file is in the public domain. + +inline int UnicodeFromUTF8(const unsigned char *us) { + if (us[0] < 0xC2) { + return us[0]; + } else if (us[0] < 0xE0) { + return ((us[0] & 0x1F) << 6) + (us[1] & 0x3F); + } else if (us[0] < 0xF0) { + return ((us[0] & 0xF) << 12) + ((us[1] & 0x3F) << 6) + (us[2] & 0x3F); + } else if (us[0] < 0xF5) { + return ((us[0] & 0x7) << 18) + ((us[1] & 0x3F) << 12) + ((us[2] & 0x3F) << 6) + (us[3] & 0x3F); + } + return us[0]; +} |