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Diffstat (limited to 'Build/source/libs/poppler/poppler-0.25.1/poppler/UTF8.h')
-rw-r--r-- | Build/source/libs/poppler/poppler-0.25.1/poppler/UTF8.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/Build/source/libs/poppler/poppler-0.25.1/poppler/UTF8.h b/Build/source/libs/poppler/poppler-0.25.1/poppler/UTF8.h new file mode 100644 index 00000000000..34a07d4082f --- /dev/null +++ b/Build/source/libs/poppler/poppler-0.25.1/poppler/UTF8.h @@ -0,0 +1,84 @@ +//======================================================================== +// +// UTF8.h +// +// Copyright 2001-2003 Glyph & Cog, LLC +// +//======================================================================== + +//======================================================================== +// +// Modified under the Poppler project - http://poppler.freedesktop.org +// +// All changes made under the Poppler project to this file are licensed +// under GPL version 2 or later +// +// Copyright (C) 2008 Koji Otani <sho@bbr.jp> +// +// To see a description of the changes please see the Changelog file that +// came with your tarball or type make ChangeLog if you are building from git +// +//======================================================================== + +static int mapUTF8(Unicode u, char *buf, int bufSize) { + if (u <= 0x0000007f) { + if (bufSize < 1) { + return 0; + } + buf[0] = (char)u; + return 1; + } else if (u <= 0x000007ff) { + if (bufSize < 2) { + return 0; + } + buf[0] = (char)(0xc0 + (u >> 6)); + buf[1] = (char)(0x80 + (u & 0x3f)); + return 2; + } else if (u <= 0x0000ffff) { + if (bufSize < 3) { + return 0; + } + buf[0] = (char)(0xe0 + (u >> 12)); + buf[1] = (char)(0x80 + ((u >> 6) & 0x3f)); + buf[2] = (char)(0x80 + (u & 0x3f)); + return 3; + } else if (u <= 0x0010ffff) { + if (bufSize < 4) { + return 0; + } + buf[0] = (char)(0xf0 + (u >> 18)); + buf[1] = (char)(0x80 + ((u >> 12) & 0x3f)); + buf[2] = (char)(0x80 + ((u >> 6) & 0x3f)); + buf[3] = (char)(0x80 + (u & 0x3f)); + return 4; + } else { + return 0; + } +} + +static int mapUCS2(Unicode u, char *buf, int bufSize) { + if (u <= 0xffff) { + if (bufSize < 2) { + return 0; + } + buf[0] = (char)((u >> 8) & 0xff); + buf[1] = (char)(u & 0xff); + return 2; + } else if (u < 0x110000) { + Unicode uu; + + /* using surrogate pair */ + if (bufSize < 4) { + return 0; + } + uu = ((u - 0x10000) >> 10) + 0xd800; + buf[0] = (char)((uu >> 8) & 0xff); + buf[1] = (char)(uu & 0xff); + uu = (u & 0x3ff)+0xdc00; + buf[2] = (char)((uu >> 8) & 0xff); + buf[3] = (char)(uu & 0xff); + return 4; + } else { + return 0; + } +} |