vi.h

   1 /* neatvi main header */
   2
   3 /* helper macros */
   4 #define LEN(a)          (sizeof(a) / sizeof((a)[0]))
   5 #define MIN(a, b)       ((a) < (b) ? (a) : (b))
   6 #define MAX(a, b)       ((a) < (b) ? (b) : (a))
   7
   8 /* line buffer, managing a number of lines */
   9 struct lbuf *lbuf_make(void);
  10 void lbuf_free(struct lbuf *lbuf);
  11 void lbuf_rd(struct lbuf *lbuf, int fd, int pos);
  12 void lbuf_wr(struct lbuf *lbuf, int fd, int beg, int end);
  13 void lbuf_rm(struct lbuf *lbuf, int beg, int end);
  14 char *lbuf_cp(struct lbuf *lbuf, int beg, int end);
  15 void lbuf_put(struct lbuf *lbuf, int pos, char *s);
  16 char *lbuf_get(struct lbuf *lbuf, int pos);
  17 int lbuf_len(struct lbuf *lbuf);
  18 void lbuf_mark(struct lbuf *lbuf, int mark, int pos);
  19 int lbuf_markpos(struct lbuf *lbuf, int mark);
  20 void lbuf_undo(struct lbuf *lbuf);
  21 void lbuf_redo(struct lbuf *lbuf);
  22 void lbuf_undomark(struct lbuf *lbuf);
  23 void lbuf_undofree(struct lbuf *lbuf);
  24
  25 /* string buffer, variable-sized string */
  26 struct sbuf *sbuf_make(void);
  27 void sbuf_free(struct sbuf *sb);
  28 char *sbuf_done(struct sbuf *sb);
  29 char *sbuf_buf(struct sbuf *sb);
  30 void sbuf_chr(struct sbuf *sb, int c);
  31 void sbuf_str(struct sbuf *sb, char *s);
  32 void sbuf_mem(struct sbuf *sb, char *s, int len);
  33 void sbuf_printf(struct sbuf *sbuf, char *s, ...);
  34 int sbuf_len(struct sbuf *sb);
  35 void sbuf_cut(struct sbuf *s, int len);
  36
  37 /* regular expression sets */
  38 #define RE_ICASE                1
  39 #define RE_NOTBOL               2
  40 #define RE_NOTEOL               4
  41
  42 struct rset *rset_make(int n, char **pat, int flg);
  43 int rset_find(struct rset *re, char *s, int n, int *grps, int flg);
  44 void rset_free(struct rset *re);
  45
  46 /* rendering lines */
  47 int *ren_position(char *s);
  48 int ren_next(char *s, int p, int dir);
  49 int ren_eol(char *s, int dir);
  50 int ren_pos(char *s, int off);
  51 int ren_cursor(char *s, int pos);
  52 int ren_noeol(char *s, int p);
  53 int ren_off(char *s, int pos);
  54 int ren_wid(char *s);
  55 int ren_region(char *s, int c1, int c2, int *l1, int *l2, int closed);
  56 char *ren_translate(char *s, char *ln);
  57 int ren_cwid(char *s, int pos);
  58
  59 /* text direction */
  60 int dir_context(char *s);
  61 void dir_reorder(char *s, int *ord);
  62 void dir_init(void);
  63 void dir_done(void);
  64
  65 /* string registers */
  66 char *reg_get(int c, int *lnmode);
  67 void reg_put(int c, char *s, int lnmode);
  68 void reg_done(void);
  69
  70 /* utf-8 helper functions */
  71 int uc_len(char *s);
  72 int uc_wid(char *s);
  73 int uc_slen(char *s);
  74 int uc_code(char *s);
  75 char *uc_chr(char *s, int off);
  76 int uc_off(char *s, int off);
  77 char *uc_sub(char *s, int beg, int end);
  78 char *uc_dup(char *s);
  79 int uc_isspace(char *s);
  80 int uc_isprint(char *s);
  81 int uc_isdigit(char *s);
  82 int uc_isalpha(char *s);
  83 int uc_kind(char *c);
  84 char **uc_chop(char *s, int *n);
  85 char *uc_next(char *s);
  86 char *uc_beg(char *beg, char *s);
  87 char *uc_end(char *beg, char *s);
  88 char *uc_shape(char *beg, char *s);
  89
  90 /* managing the terminal */
  91 #define xrows           (term_rows() - 1)
  92 #define xcols           (term_cols())
  93
  94 void term_init(void);
  95 void term_done(void);
  96 void term_str(char *s);
  97 void term_chr(int ch);
  98 void term_pos(int r, int c);
  99 void term_clear(void);
 100 void term_kill(void);
 101 int term_rows(void);
 102 int term_cols(void);
 103 int term_read(int timeout);
 104 void term_record(void);
 105 void term_commit(void);
 106 char *term_att(int att, int old);
 107
 108 #define TK_CTL(x)       ((x) & 037)
 109 #define TK_INT(c)       ((c) < 0 || (c) == TK_ESC || (c) == TK_CTL('c'))
 110 #define TK_ESC          (TK_CTL('['))
 111
 112 /* line-oriented input and output */
 113 char *led_prompt(char *pref, char *post, char **kmap);
 114 char *led_input(char *pref, char *post, char *ai, int ai_max, char **kmap);
 115 void led_print(char *msg, int row);
 116 char *led_keymap(char *kmap, int c);
 117 int led_pos(char *s, int pos);
 118
 119 /* ex commands */
 120 void ex(void);
 121 void ex_command(char *cmd);
 122 char *ex_read(char *msg);
 123 void ex_show(char *msg);
 124
 125 /* process management */
 126 char *cmd_pipe(char *cmd, char *s);
 127
 128 /* syntax highlighting */
 129 #define SYN_BD          0x100
 130 #define SYN_IT          0x200
 131 #define SYN_RV          0x400
 132 #define SYN_ATTR(f, b)  (((b) << 16) | (f))
 133 #define SYN_FG(a)       ((a) & 0xffff)
 134 #define SYN_BG(a)       ((a) >> 16)
 135
 136 int *syn_highlight(char *ft, char *s);
 137 char *syn_filetype(char *path);
 138 void syn_init(void);
 139 void syn_done(void);
 140
 141 /* configuration variables */
 142 char *conf_kmapalt(void);
 143 int conf_dirmark(int idx, char **pat, int *ctx, int *dir, int *grp);
 144 int conf_dircontext(int idx, char **pat, int *ctx);
 145 int conf_placeholder(int idx, char **s, char **d, int *wid);
 146 int conf_highlight(int idx, char **ft, int *att, int *grp, char **pat);
 147 int conf_filetype(int idx, char **ft, char **pat);
 148
 149 /* global variables */
 150 #define PATHLEN         512
 151
 152 extern int xvis;
 153 extern struct lbuf *xb;
 154 extern int xrow;
 155 extern int xcol;
 156 extern int xtop;
 157 extern int xled;
 158 extern int xrow_alt;
 159 extern char xpath[];
 160 extern char xpath_alt[];
 161 extern int xquit;
 162 extern int xic;
 163 extern int xai;
 164 extern int xdir;
 165 extern int xshape;
 166 extern int xorder;
 167 extern char xft[];