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/* $OpenBSD: macros.h,v 1.1 1996/09/07 21:40:27 downsj Exp $ */
/* vi:set ts=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
*/
#define lt(a, b) (((a).lnum != (b).lnum) \
? ((a).lnum < (b).lnum) : ((a).col < (b).col))
#define ltoreq(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))
/*
* 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
*/
#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
#ifdef HAVE_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) < 256) \
c = langmap_mapchar[c]; \
} while (0)
#endif
/*
* isbreak() is used very often if 'linebreak' is set, use a macro to make
* it work fast.
*/
#define isbreak(c) (breakat_flags[(char_u)(c)])
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