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- /* vi:set ts=8 sts=4 sw=4:
- *
- * VIM - Vi IMproved by Bram Moolenaar
- *
- * Do ":help uganda" in Vim to read copying and usage conditions.
- * Do ":help credits" in Vim to see a list of people who contributed.
- */
-
- /*
- * macros.h: macro definitions for often used code
- */
-
- /*
- * pchar(lp, c) - put character 'c' at position 'lp'
- */
- #define pchar(lp, c) (*(ml_get_buf(curbuf, (lp).lnum, TRUE) + (lp).col) = (c))
-
- /*
- * Position comparisons
- */
- #ifdef FEAT_VIRTUALEDIT
- # define lt(a, b) (((a).lnum != (b).lnum) \
- ? (a).lnum < (b).lnum \
- : (a).col != (b).col \
- ? (a).col < (b).col \
- : (a).coladd < (b).coladd)
- # define ltp(a, b) (((a)->lnum != (b)->lnum) \
- ? (a)->lnum < (b)->lnum \
- : (a)->col != (b)->col \
- ? (a)->col < (b)->col \
- : (a)->coladd < (b)->coladd)
- # define equal(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col) && ((a).coladd == (b).coladd))
- #else
- # define lt(a, b) (((a).lnum != (b).lnum) \
- ? ((a).lnum < (b).lnum) : ((a).col < (b).col))
- # define ltp(a, b) (((a)->lnum != (b)->lnum) \
- ? ((a)->lnum < (b)->lnum) : ((a)->col < (b)->col))
- # define equal(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col))
- #endif
-
- #define ltoreq(a, b) (lt(a, b) || equal(a, b))
-
- /*
- * lineempty() - return TRUE if the line is empty
- */
- #define lineempty(p) (*ml_get(p) == NUL)
-
- /*
- * bufempty() - return TRUE if the current buffer is empty
- */
- #define bufempty() (curbuf->b_ml.ml_line_count == 1 && *ml_get((linenr_T)1) == NUL)
-
- /*
- * On some systems toupper()/tolower() only work on lower/uppercase characters
- * Careful: Only call TO_UPPER() and TO_LOWER() with a character in the range
- * 0 - 255. toupper()/tolower() on some systems can't handle others.
- * Note: for UTF-8 use utf_toupper() and utf_tolower().
- */
- #ifdef MSWIN
- # define TO_UPPER(c) toupper_tab[(c) & 255]
- # define TO_LOWER(c) tolower_tab[(c) & 255]
- #else
- # ifdef BROKEN_TOUPPER
- # define TO_UPPER(c) (islower(c) ? toupper(c) : (c))
- # define TO_LOWER(c) (isupper(c) ? tolower(c) : (c))
- # else
- # define TO_UPPER toupper
- # define TO_LOWER tolower
- # endif
- #endif
-
- /*
- * MB_ISLOWER() and MB_ISUPPER() are to be used on multi-byte characters. But
- * don't use them for negative values or values above 0x100 for DBCS.
- */
- #ifdef FEAT_MBYTE
- # define MB_ISLOWER(c) (enc_utf8 && (c) > 0x80 ? utf_islower(c) : islower(c))
- # define MB_ISUPPER(c) (enc_utf8 && (c) > 0x80 ? utf_isupper(c) : isupper(c))
- # define MB_TOLOWER(c) (enc_utf8 && (c) > 0x80 ? utf_tolower(c) : TO_LOWER(c))
- # define MB_TOUPPER(c) (enc_utf8 && (c) > 0x80 ? utf_toupper(c) : TO_UPPER(c))
- #else
- # define MB_ISLOWER(c) islower(c)
- # define MB_ISUPPER(c) isupper(c)
- # define MB_TOLOWER(c) TO_LOWER(c)
- # define MB_TOUPPER(c) TO_UPPER(c)
- #endif
-
- /* Like isalpha() but reject non-ASCII characters. Can't be used with a
- * special key (negative value). */
- #ifdef EBCDIC
- # define ASCII_ISALPHA(c) isalpha(c)
- # define ASCII_ISALNUM(c) isalnum(c)
- # define ASCII_ISLOWER(c) islower(c)
- # define ASCII_ISUPPER(c) isupper(c)
- #else
- # define ASCII_ISALPHA(c) ((c) < 0x7f && isalpha(c))
- # define ASCII_ISALNUM(c) ((c) < 0x7f && isalnum(c))
- # define ASCII_ISLOWER(c) ((c) < 0x7f && islower(c))
- # define ASCII_ISUPPER(c) ((c) < 0x7f && isupper(c))
- #endif
-
- /* macro version of chartab().
- * Only works with values 0-255!
- * Doesn't work for UTF-8 mode with chars >= 0x80. */
- #define CHARSIZE(c) (chartab[c] & CT_CELL_MASK)
-
- #ifdef FEAT_LANGMAP
- /*
- * Adjust chars in a language according to 'langmap' option.
- * NOTE that there is NO overhead if 'langmap' is not set; but even
- * when set we only have to do 2 ifs and an array lookup.
- * Don't apply 'langmap' if the character comes from the Stuff buffer.
- * The do-while is just to ignore a ';' after the macro.
- */
- # define LANGMAP_ADJUST(c, condition) do { \
- if (*p_langmap && (condition) && !KeyStuffed && (c) >= 0 && (c) < 256) \
- c = langmap_mapchar[c]; \
- } while (0)
- #endif
-
- /*
- * vim_isbreak() is used very often if 'linebreak' is set, use a macro to make
- * it work fast.
- */
- #define vim_isbreak(c) (breakat_flags[(char_u)(c)])
-
- /*
- * On VMS file names are different and require a translation.
- * On the Mac open() has only two arguments.
- */
- #ifdef VMS
- # define mch_access(n, p) access(vms_fixfilename(n), (p))
- /* see mch_open() comment */
- # define mch_fopen(n, p) fopen(vms_fixfilename(n), (p))
- # define mch_fstat(n, p) fstat(vms_fixfilename(n), (p))
- /* VMS does not have lstat() */
- # define mch_stat(n, p) stat(vms_fixfilename(n), (p))
- #else
- # define mch_access(n, p) access((n), (p))
- # define mch_fopen(n, p) fopen((n), (p))
- # define mch_fstat(n, p) fstat((n), (p))
- # define mch_lstat(n, p) lstat((n), (p))
- # ifdef MSWIN /* has it's own mch_stat() function */
- # define mch_stat(n, p) vim_stat((n), (p))
- # else
- # define mch_stat(n, p) stat((n), (p))
- # endif
- #endif
-
- #ifdef MACOS_CLASSIC
- /* MacOS classic doesn't support perm but MacOS X does. */
- # define mch_open(n, m, p) open((n), (m))
- #else
- # ifdef VMS
- /*
- * It is possible to force some record format with:
- * # define mch_open(n, m, p) open(vms_fixfilename(n), (m), (p)), "rat=cr", "rfm=stmlf", "mrs=0")
- * but it is not recomended, because it can destroy indexes etc.
- */
- # define mch_open(n, m, p) open(vms_fixfilename(n), (m), (p))
- # else
- # define mch_open(n, m, p) open((n), (m), (p))
- # endif
- #endif
-
- /*
- * Encryption macros. Mohsin Ahmed, mosh@sasi.com 98-09-24
- * Based on zip/crypt sources.
- */
-
- #ifdef FEAT_CRYPT
-
- #ifndef __MINGW32__
- # define PWLEN 80
- #endif
-
- /* encode byte c, using temp t. Warning: c must not have side effects. */
- # define ZENCODE(c, t) (t = decrypt_byte(), update_keys(c), t^(c))
-
- /* decode byte c in place */
- # define ZDECODE(c) update_keys(c ^= decrypt_byte())
-
- #endif
-
- #ifdef STARTUPTIME
- # define TIME_MSG(s) time_msg(s, NULL)
- #else
- # define TIME_MSG(s)
- #endif
-
- #ifdef FEAT_VREPLACE
- # define REPLACE_NORMAL(s) (((s) & REPLACE_FLAG) && !((s) & VREPLACE_FLAG))
- #else
- # define REPLACE_NORMAL(s) ((s) & REPLACE_FLAG)
- #endif
-