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macros.h
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1995-02-27
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/* vi:ts=4:sw=4
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Read the file "credits.txt" for a list of people who contributed.
* Read the file "uganda.txt" for copying and usage conditions.
*/
/*
* 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 file buffer is empty
*/
#define bufempty() (curbuf->b_ml.ml_flags & ML_EMPTY)
/*
* On some systems toupper()/tolower() only work on lower/uppercase characters
*/
#if defined(sequent) || defined(DOMAIN) || !defined(__STDC__)
# 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