www.pudn.com > vim53src.zip > macros.h

/* 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 
 */ 
#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 WIN32 
#  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 
 
/* macro version of chartab(), only works with 0-255 values */ 
#define CHARSIZE(c)	(chartab[c] & CHAR_MASK); 
 
#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 
 
/* 
 * 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)])