mirror of
https://github.com/vim/vim
synced 2025-04-30 05:17:45 +02:00
265 lines
8.6 KiB
C
265 lines
8.6 KiB
C
/* vi:set ts=8 sts=4 sw=4:
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*
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* VIM - Vi IMproved by Bram Moolenaar
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*
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* Do ":help uganda" in Vim to read copying and usage conditions.
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* Do ":help credits" in Vim to see a list of people who contributed.
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*/
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/*
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* macros.h: macro definitions for often used code
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*/
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/*
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* pchar(lp, c) - put character 'c' at position 'lp'
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*/
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#define pchar(lp, c) (*(ml_get_buf(curbuf, (lp).lnum, TRUE) + (lp).col) = (c))
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/*
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* Position comparisons
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*/
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#ifdef FEAT_VIRTUALEDIT
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# define lt(a, b) (((a).lnum != (b).lnum) \
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? (a).lnum < (b).lnum \
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: (a).col != (b).col \
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? (a).col < (b).col \
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: (a).coladd < (b).coladd)
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# define ltp(a, b) (((a)->lnum != (b)->lnum) \
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? (a)->lnum < (b)->lnum \
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: (a)->col != (b)->col \
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? (a)->col < (b)->col \
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: (a)->coladd < (b)->coladd)
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# define equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col) && ((a).coladd == (b).coladd))
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#else
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# define lt(a, b) (((a).lnum != (b).lnum) \
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? ((a).lnum < (b).lnum) : ((a).col < (b).col))
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# define ltp(a, b) (((a)->lnum != (b)->lnum) \
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? ((a)->lnum < (b)->lnum) : ((a)->col < (b)->col))
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# define equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col))
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#endif
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#define ltoreq(a, b) (lt(a, b) || equalpos(a, b))
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/*
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* lineempty() - return TRUE if the line is empty
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*/
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#define lineempty(p) (*ml_get(p) == NUL)
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/*
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* bufempty() - return TRUE if the current buffer is empty
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*/
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#define bufempty() (curbuf->b_ml.ml_line_count == 1 && *ml_get((linenr_T)1) == NUL)
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/*
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* toupper() and tolower() that use the current locale.
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* On some systems toupper()/tolower() only work on lower/uppercase characters
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* Careful: Only call TOUPPER_LOC() and TOLOWER_LOC() with a character in the
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* range 0 - 255. toupper()/tolower() on some systems can't handle others.
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* Note: for UTF-8 use utf_toupper() and utf_tolower().
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*/
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#ifdef MSWIN
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# define TOUPPER_LOC(c) toupper_tab[(c) & 255]
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# define TOLOWER_LOC(c) tolower_tab[(c) & 255]
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#else
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# ifdef BROKEN_TOUPPER
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# define TOUPPER_LOC(c) (islower(c) ? toupper(c) : (c))
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# define TOLOWER_LOC(c) (isupper(c) ? tolower(c) : (c))
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# else
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# define TOUPPER_LOC toupper
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# define TOLOWER_LOC tolower
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# endif
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#endif
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/* toupper() and tolower() for ASCII only and ignore the current locale. */
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#ifdef EBCDIC
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# define TOUPPER_ASC(c) (islower(c) ? toupper(c) : (c))
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# define TOLOWER_ASC(c) (isupper(c) ? tolower(c) : (c))
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#else
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# define TOUPPER_ASC(c) (((c) < 'a' || (c) > 'z') ? (c) : (c) - ('a' - 'A'))
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# define TOLOWER_ASC(c) (((c) < 'A' || (c) > 'Z') ? (c) : (c) + ('a' - 'A'))
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#endif
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/*
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* MB_ISLOWER() and MB_ISUPPER() are to be used on multi-byte characters. But
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* don't use them for negative values.
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*/
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#ifdef FEAT_MBYTE
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# define MB_ISLOWER(c) (enc_utf8 && (c) >= 0x80 ? utf_islower(c) : (has_mbyte && c > 255 ? FALSE : islower(c)))
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# define MB_ISUPPER(c) (enc_utf8 && (c) >= 0x80 ? utf_isupper(c) : (has_mbyte && c > 255 ? FALSE : isupper(c)))
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# define MB_TOLOWER(c) (enc_utf8 && (c) >= 0x80 ? utf_tolower(c) : (has_mbyte && c > 255 ? c : TOLOWER_LOC(c)))
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# define MB_TOUPPER(c) (enc_utf8 && (c) >= 0x80 ? utf_toupper(c) : (has_mbyte && c > 255 ? c : TOUPPER_LOC(c)))
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#else
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# define MB_ISLOWER(c) islower(c)
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# define MB_ISUPPER(c) isupper(c)
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# define MB_TOLOWER(c) TOLOWER_LOC(c)
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# define MB_TOUPPER(c) TOUPPER_LOC(c)
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#endif
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/* Like isalpha() but reject non-ASCII characters. Can't be used with a
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* special key (negative value). */
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#ifdef EBCDIC
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# define ASCII_ISALPHA(c) isalpha(c)
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# define ASCII_ISALNUM(c) isalnum(c)
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# define ASCII_ISLOWER(c) islower(c)
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# define ASCII_ISUPPER(c) isupper(c)
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#else
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# define ASCII_ISALPHA(c) ((c) < 0x7f && isalpha(c))
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# define ASCII_ISALNUM(c) ((c) < 0x7f && isalnum(c))
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# define ASCII_ISLOWER(c) ((c) < 0x7f && islower(c))
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# define ASCII_ISUPPER(c) ((c) < 0x7f && isupper(c))
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#endif
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/* Use our own isdigit() replacement, because on MS-Windows isdigit() returns
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* non-zero for superscript 1. Also avoids that isdigit() crashes for numbers
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* below 0 and above 255. For complicated arguments and in/decrement use
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* vim_isdigit() instead. */
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#define VIM_ISDIGIT(c) ((c) >= '0' && (c) <= '9')
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/* macro version of chartab().
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* Only works with values 0-255!
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* Doesn't work for UTF-8 mode with chars >= 0x80. */
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#define CHARSIZE(c) (chartab[c] & CT_CELL_MASK)
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#ifdef FEAT_LANGMAP
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/*
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* Adjust chars in a language according to 'langmap' option.
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* NOTE that there is NO overhead if 'langmap' is not set; but even
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* when set we only have to do 2 ifs and an array lookup.
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* Don't apply 'langmap' if the character comes from the Stuff buffer.
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* The do-while is just to ignore a ';' after the macro.
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*/
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# define LANGMAP_ADJUST(c, condition) do { \
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if (*p_langmap && (condition) && !KeyStuffed && (c) >= 0 && (c) < 256) \
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c = langmap_mapchar[c]; \
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} while (0)
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#endif
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/*
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* vim_isbreak() is used very often if 'linebreak' is set, use a macro to make
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* it work fast.
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*/
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#define vim_isbreak(c) (breakat_flags[(char_u)(c)])
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/*
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* On VMS file names are different and require a translation.
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* On the Mac open() has only two arguments.
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*/
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#ifdef VMS
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# define mch_access(n, p) access(vms_fixfilename(n), (p))
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/* see mch_open() comment */
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# define mch_fopen(n, p) fopen(vms_fixfilename(n), (p))
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# define mch_fstat(n, p) fstat(vms_fixfilename(n), (p))
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/* VMS does not have lstat() */
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# define mch_stat(n, p) stat(vms_fixfilename(n), (p))
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#else
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# ifndef WIN32
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# define mch_access(n, p) access((n), (p))
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# endif
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# if !(defined(FEAT_MBYTE) && defined(WIN3264))
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# define mch_fopen(n, p) fopen((n), (p))
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# endif
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# define mch_fstat(n, p) fstat((n), (p))
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# ifdef MSWIN /* has it's own mch_stat() function */
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# define mch_stat(n, p) vim_stat((n), (p))
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# else
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# ifdef STAT_IGNORES_SLASH
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/* On Solaris stat() accepts "file/" as if it was "file". Return -1 if
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* the name ends in "/" and it's not a directory. */
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# define mch_stat(n, p) (illegal_slash(n) ? -1 : stat((n), (p)))
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# else
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# define mch_stat(n, p) stat((n), (p))
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# endif
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# endif
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#endif
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#ifdef HAVE_LSTAT
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# define mch_lstat(n, p) lstat((n), (p))
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#else
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# define mch_lstat(n, p) mch_stat((n), (p))
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#endif
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#ifdef MACOS_CLASSIC
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/* MacOS classic doesn't support perm but MacOS X does. */
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# define mch_open(n, m, p) open((n), (m))
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#else
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# ifdef VMS
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/*
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* It is possible to force some record format with:
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* # define mch_open(n, m, p) open(vms_fixfilename(n), (m), (p)), "rat=cr", "rfm=stmlf", "mrs=0")
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* but it is not recomended, because it can destroy indexes etc.
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*/
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# define mch_open(n, m, p) open(vms_fixfilename(n), (m), (p))
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# else
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# if !(defined(FEAT_MBYTE) && defined(WIN3264))
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# define mch_open(n, m, p) open((n), (m), (p))
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# endif
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# endif
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#endif
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/* mch_open_rw(): invoke mch_open() with third argument for user R/W. */
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#if defined(UNIX) || defined(VMS) /* open in rw------- mode */
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# define mch_open_rw(n, f) mch_open((n), (f), (mode_t)0600)
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#else
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# if defined(MSDOS) || defined(MSWIN) || defined(OS2) /* open read/write */
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# define mch_open_rw(n, f) mch_open((n), (f), S_IREAD | S_IWRITE)
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# else
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# define mch_open_rw(n, f) mch_open((n), (f), 0)
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# endif
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#endif
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/*
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* Encryption macros. Mohsin Ahmed, mosh@sasi.com 98-09-24
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* Based on zip/crypt sources.
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*/
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#ifdef FEAT_CRYPT
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/* encode byte c, using temp t. Warning: c must not have side effects. */
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# define ZENCODE(c, t) (t = decrypt_byte(), update_keys(c), t^(c))
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/* decode byte c in place */
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# define ZDECODE(c) update_keys(c ^= decrypt_byte())
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#endif
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#ifdef STARTUPTIME
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# define TIME_MSG(s) time_msg(s, NULL)
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#else
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# define TIME_MSG(s)
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#endif
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#ifdef FEAT_VREPLACE
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# define REPLACE_NORMAL(s) (((s) & REPLACE_FLAG) && !((s) & VREPLACE_FLAG))
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#else
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# define REPLACE_NORMAL(s) ((s) & REPLACE_FLAG)
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#endif
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#ifdef FEAT_ARABIC
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# define UTF_COMPOSINGLIKE(p1, p2) utf_composinglike((p1), (p2))
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#else
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# define UTF_COMPOSINGLIKE(p1, p2) utf_iscomposing(utf_ptr2char(p2))
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#endif
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#ifdef FEAT_RIGHTLEFT
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/* Whether to draw the vertical bar on the right side of the cell. */
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# define CURSOR_BAR_RIGHT (curwin->w_p_rl && (!(State & CMDLINE) || cmdmsg_rl))
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#endif
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/*
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* mb_ptr_adv(): advance a pointer to the next character, taking care of
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* multi-byte characters if needed.
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* mb_ptr_back(): backup a pointer to the previous character, taking care of
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* multi-byte characters if needed.
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* MB_COPY_CHAR(f, t): copy one char from "f" to "t" and advance the pointers.
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*/
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#ifdef FEAT_MBYTE
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# define mb_ptr_adv(p) p += has_mbyte ? (*mb_ptr2len_check)(p) : 1
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# define mb_ptr_back(s, p) p -= has_mbyte ? ((*mb_head_off)(s, p - 1) + 1) : 1
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# define MB_COPY_CHAR(f, t) if (has_mbyte) mb_copy_char(&f, &t); else *t++ = *f++
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# define MB_CHARLEN(p) (has_mbyte ? mb_charlen(p) : STRLEN(p))
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#else
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# define mb_ptr_adv(p) ++p
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# define mb_ptr_back(s, p) --p
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# define MB_COPY_CHAR(f, t) *t++ = *f++
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# define MB_CHARLEN(p) STRLEN(p)
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#endif
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