Mercurial > projects > ldc
view lphobos/std/ctype.d @ 1064:f0b6549055ab
Make LDC work with LLVM trunk (s/LinkOnceLinkage/LinkOnceOdrLinkage/)
Also moved the #defines for linkage types into a separate header instead of
mars.h so we can #include revisions.h without having to rebuild the entire
frontend every time we update.
(I'm using revisions.h to get the LLVM revision for use in preprocessor
conditionals. It should work with LLVM release 2.5, old trunk and new trunk)
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Sun, 08 Mar 2009 16:13:10 +0100 |
parents | fd32135dca3e |
children |
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/* * Placed into the Public Domain. * Digital Mars, www.digitalmars.com * Written by Walter Bright */ /** * Simple ASCII character classification functions. * For Unicode classification, see $(LINK2 std_uni.html, std.uni). * References: * $(LINK2 http://www.digitalmars.com/d/ascii-table.html, ASCII Table), * $(LINK2 http://en.wikipedia.org/wiki/Ascii, Wikipedia) * Macros: * WIKI=Phobos/StdCtype */ module std.ctype; /** * Returns !=0 if c is a letter in the range (0..9, a..z, A..Z). */ int isalnum(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_ALP|_DIG) : 0; } /** * Returns !=0 if c is an ascii upper or lower case letter. */ int isalpha(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_ALP) : 0; } /** * Returns !=0 if c is a control character. */ int iscntrl(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_CTL) : 0; } /** * Returns !=0 if c is a digit. */ int isdigit(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_DIG) : 0; } /** * Returns !=0 if c is lower case ascii letter. */ int islower(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_LC) : 0; } /** * Returns !=0 if c is a punctuation character. */ int ispunct(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_PNC) : 0; } /** * Returns !=0 if c is a space, tab, vertical tab, form feed, * carriage return, or linefeed. */ int isspace(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_SPC) : 0; } /** * Returns !=0 if c is an upper case ascii character. */ int isupper(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_UC) : 0; } /** * Returns !=0 if c is a hex digit (0..9, a..f, A..F). */ int isxdigit(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_HEX) : 0; } /** * Returns !=0 if c is a printing character except for the space character. */ int isgraph(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_ALP|_DIG|_PNC) : 0; } /** * Returns !=0 if c is a printing character including the space character. */ int isprint(dchar c) { return (c <= 0x7F) ? _ctype[c] & (_ALP|_DIG|_PNC|_BLK) : 0; } /** * Returns !=0 if c is in the ascii character set, i.e. in the range 0..0x7F. */ int isascii(dchar c) { return c <= 0x7F; } /** * If c is an upper case ascii character, * return the lower case equivalent, otherwise return c. */ dchar tolower(dchar c) out (result) { assert(!isupper(result)); } body { return isupper(c) ? c + (cast(dchar)'a' - 'A') : c; } /** * If c is a lower case ascii character, * return the upper case equivalent, otherwise return c. */ dchar toupper(dchar c) out (result) { assert(!islower(result)); } body { return islower(c) ? c - (cast(dchar)'a' - 'A') : c; } private: enum { _SPC = 8, _CTL = 0x20, _BLK = 0x40, _HEX = 0x80, _UC = 1, _LC = 2, _PNC = 0x10, _DIG = 4, _ALP = _UC|_LC, } ubyte _ctype[128] = [ _CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL, _CTL,_CTL|_SPC,_CTL|_SPC,_CTL|_SPC,_CTL|_SPC,_CTL|_SPC,_CTL,_CTL, _CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL, _CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL,_CTL, _SPC|_BLK,_PNC,_PNC,_PNC,_PNC,_PNC,_PNC,_PNC, _PNC,_PNC,_PNC,_PNC,_PNC,_PNC,_PNC,_PNC, _DIG|_HEX,_DIG|_HEX,_DIG|_HEX,_DIG|_HEX,_DIG|_HEX, _DIG|_HEX,_DIG|_HEX,_DIG|_HEX,_DIG|_HEX,_DIG|_HEX, _PNC,_PNC,_PNC,_PNC,_PNC,_PNC, _PNC,_UC|_HEX,_UC|_HEX,_UC|_HEX,_UC|_HEX,_UC|_HEX,_UC|_HEX,_UC, _UC,_UC,_UC,_UC,_UC,_UC,_UC,_UC, _UC,_UC,_UC,_UC,_UC,_UC,_UC,_UC, _UC,_UC,_UC,_PNC,_PNC,_PNC,_PNC,_PNC, _PNC,_LC|_HEX,_LC|_HEX,_LC|_HEX,_LC|_HEX,_LC|_HEX,_LC|_HEX,_LC, _LC,_LC,_LC,_LC,_LC,_LC,_LC,_LC, _LC,_LC,_LC,_LC,_LC,_LC,_LC,_LC, _LC,_LC,_LC,_PNC,_PNC,_PNC,_PNC,_CTL ]; unittest { assert(isspace(' ')); assert(!isspace('z')); assert(toupper('a') == 'A'); assert(tolower('Q') == 'q'); assert(!isxdigit('G')); }