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