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Diffstat (limited to 'src/nvim/macros.h')
| -rw-r--r-- | src/nvim/macros.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/nvim/macros.h b/src/nvim/macros.h new file mode 100644 index 0000000000..9bfe3d054b --- /dev/null +++ b/src/nvim/macros.h @@ -0,0 +1,151 @@ +#ifndef NEOVIM_MACROS_H +#define NEOVIM_MACROS_H + +/* + * 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 + */ + +/* + * Position comparisons + */ +# 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 equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col) && \ + ((a).coladd == (b).coladd)) +# define clearpos(a) {(a)->lnum = 0; (a)->col = 0; (a)->coladd = 0; } + +#define ltoreq(a, b) (lt(a, b) || equalpos(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) + +/* + * toupper() and tolower() that use the current locale. + * Careful: Only call TOUPPER_LOC() and TOLOWER_LOC() with a character in the + * range 0 - 255. toupper()/tolower() on some systems can't handle others. + * Note: It is often better to use vim_tolower() and vim_toupper(), because many + * toupper() and tolower() implementations only work for ASCII. + */ +#define TOUPPER_LOC toupper +#define TOLOWER_LOC tolower + +/* toupper() and tolower() for ASCII only and ignore the current locale. */ +# define TOUPPER_ASC(c) (((c) < 'a' || (c) > 'z') ? (c) : (c) - ('a' - 'A')) +# define TOLOWER_ASC(c) (((c) < 'A' || (c) > 'Z') ? (c) : (c) + ('a' - 'A')) + +/* Use our own isdigit() replacement, because on MS-Windows isdigit() returns + * non-zero for superscript 1. Also avoids that isdigit() crashes for numbers + * below 0 and above 255. */ +#define VIM_ISDIGIT(c) ((unsigned)(c) - '0' < 10) + +/* Like isalpha() but reject non-ASCII characters. Can't be used with a + * special key (negative value). */ +# define ASCII_ISLOWER(c) ((unsigned)(c) - 'a' < 26) +# define ASCII_ISUPPER(c) ((unsigned)(c) - 'A' < 26) +# define ASCII_ISALPHA(c) (ASCII_ISUPPER(c) || ASCII_ISLOWER(c)) +# define ASCII_ISALNUM(c) (ASCII_ISALPHA(c) || VIM_ISDIGIT(c)) + +/* 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) + +/* + * Adjust chars in a language according to 'langmap' option. + * NOTE that there is no noticeable overhead if 'langmap' is not set. + * When set the overhead for characters < 256 is small. + * 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) \ + { \ + if ((c) < 256) \ + c = langmap_mapchar[c]; \ + else \ + c = langmap_adjust_mb(c); \ + } \ + } while (0) + +/* + * 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)]) + +# define mch_fopen(n, p) fopen((n), (p)) +# define mch_open(n, m, p) open((n), (m), (p)) + +/* mch_open_rw(): invoke mch_open() with third argument for user R/W. */ +#if defined(UNIX) /* open in rw------- mode */ +# define mch_open_rw(n, f) mch_open((n), (f), (mode_t)0600) +#else +# define mch_open_rw(n, f) mch_open((n), (f), 0) +#endif + +#ifdef STARTUPTIME +# define TIME_MSG(s) { if (time_fd != NULL) time_msg(s, NULL); } +#else +# define TIME_MSG(s) +#endif + +# define REPLACE_NORMAL(s) (((s) & REPLACE_FLAG) && !((s) & VREPLACE_FLAG)) + +# define UTF_COMPOSINGLIKE(p1, p2) utf_composinglike((p1), (p2)) + +/* Whether to draw the vertical bar on the right side of the cell. */ +# define CURSOR_BAR_RIGHT (curwin->w_p_rl && (!(State & CMDLINE) || cmdmsg_rl)) + +/* + * mb_ptr_adv(): advance a pointer to the next character, taking care of + * multi-byte characters if needed. + * mb_ptr_back(): backup a pointer to the previous character, taking care of + * multi-byte characters if needed. + * MB_COPY_CHAR(f, t): copy one char from "f" to "t" and advance the pointers. + * PTR2CHAR(): get character from pointer. + */ +/* Get the length of the character p points to */ +# define MB_PTR2LEN(p) (has_mbyte ? (*mb_ptr2len)(p) : 1) +/* Advance multi-byte pointer, skip over composing chars. */ +# define mb_ptr_adv(p) p += has_mbyte ? (*mb_ptr2len)(p) : 1 +/* Advance multi-byte pointer, do not skip over composing chars. */ +# define mb_cptr_adv(p) p += \ + enc_utf8 ? utf_ptr2len(p) : has_mbyte ? (*mb_ptr2len)(p) : 1 +/* Backup multi-byte pointer. */ +# define mb_ptr_back(s, p) p -= has_mbyte ? ((*mb_head_off)(s, p - 1) + 1) : 1 +/* get length of multi-byte char, not including composing chars */ +# define mb_cptr2len(p) (enc_utf8 ? utf_ptr2len(p) : (*mb_ptr2len)(p)) + +# define MB_COPY_CHAR(f, \ + t) if (has_mbyte) mb_copy_char(&f, &t); else *t++ = *f++ +# define MB_CHARLEN(p) (has_mbyte ? mb_charlen(p) : (int)STRLEN(p)) +# define MB_CHAR2LEN(c) (has_mbyte ? mb_char2len(c) : 1) +# define PTR2CHAR(p) (has_mbyte ? mb_ptr2char(p) : (int)*(p)) + +# define RESET_BINDING(wp) (wp)->w_p_scb = FALSE; (wp)->w_p_crb = FALSE + +#endif // NEOVIM_MACROS_H |