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, int off);
  19 int lbuf_jump(struct lbuf *lbuf, int mark, int *pos, int *off);
  20 int lbuf_undo(struct lbuf *lbuf);
  21 int lbuf_redo(struct lbuf *lbuf);
  22 int lbuf_modified(struct lbuf *lb);
  23 void lbuf_saved(struct lbuf *lb, int clear);
  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 int lbuf_pair(struct lbuf *lb, int *row, int *off);
  34
  35 /* string buffer, variable-sized string */
  36 struct sbuf *sbuf_make(void);
  37 void sbuf_free(struct sbuf *sb);
  38 char *sbuf_done(struct sbuf *sb);
  39 char *sbuf_buf(struct sbuf *sb);
  40 void sbuf_chr(struct sbuf *sb, int c);
  41 void sbuf_str(struct sbuf *sb, char *s);
  42 void sbuf_mem(struct sbuf *sb, char *s, int len);
  43 void sbuf_printf(struct sbuf *sbuf, char *s, ...);
  44 int sbuf_len(struct sbuf *sb);
  45 void sbuf_cut(struct sbuf *s, int len);
  46
  47 /* regular expression sets */
  48 #define RE_ICASE                1
  49 #define RE_NOTBOL               2
  50 #define RE_NOTEOL               4
  51
  52 struct rset *rset_make(int n, char **pat, int flg);
  53 int rset_find(struct rset *re, char *s, int n, int *grps, int flg);
  54 void rset_free(struct rset *re);
  55
  56 /* rendering lines */
  57 int *ren_position(char *s);
  58 int ren_next(char *s, int p, int dir);
  59 int ren_eol(char *s, int dir);
  60 int ren_pos(char *s, int off);
  61 int ren_cursor(char *s, int pos);
  62 int ren_noeol(char *s, int p);
  63 int ren_off(char *s, int pos);
  64 int ren_wid(char *s);
  65 int ren_region(char *s, int c1, int c2, int *l1, int *l2, int closed);
  66 char *ren_translate(char *s, char *ln);
  67 int ren_cwid(char *s, int pos);
  68
  69 /* text direction */
  70 int dir_context(char *s);
  71 void dir_reorder(char *s, int *ord);
  72 void dir_init(void);
  73 void dir_done(void);
  74
  75 /* string registers */
  76 char *reg_get(int c, int *lnmode);
  77 void reg_put(int c, char *s, int lnmode);
  78 void reg_done(void);
  79
  80 /* utf-8 helper functions */
  81 int uc_len(char *s);
  82 int uc_wid(char *s);
  83 int uc_slen(char *s);
  84 int uc_code(char *s);
  85 char *uc_chr(char *s, int off);
  86 int uc_off(char *s, int off);
  87 char *uc_sub(char *s, int beg, int end);
  88 char *uc_dup(char *s);
  89 int uc_isspace(char *s);
  90 int uc_isprint(char *s);
  91 int uc_isdigit(char *s);
  92 int uc_isalpha(char *s);
  93 int uc_kind(char *c);
  94 char **uc_chop(char *s, int *n);
  95 char *uc_next(char *s);
  96 char *uc_prev(char *beg, char *s);
  97 char *uc_beg(char *beg, char *s);
  98 char *uc_end(char *s);
  99 char *uc_shape(char *beg, char *s);
 100 char *uc_lastline(char *s);
 101
 102 /* managing the terminal */
 103 #define xrows           (term_rows() - 1)
 104 #define xcols           (term_cols())
 105
 106 void term_init(void);
 107 void term_done(void);
 108 void term_suspend(void);
 109 void term_str(char *s);
 110 void term_chr(int ch);
 111 void term_pos(int r, int c);
 112 void term_clear(void);
 113 void term_kill(void);
 114 void term_room(int n);
 115 int term_rows(void);
 116 int term_cols(void);
 117 int term_read(void);
 118 void term_record(void);
 119 void term_commit(void);
 120 char *term_att(int att, int old);
 121 void term_push(char *s, int n);
 122 char *term_cmd(int *n);
 123
 124 #define TK_CTL(x)       ((x) & 037)
 125 #define TK_INT(c)       ((c) < 0 || (c) == TK_ESC || (c) == TK_CTL('c'))
 126 #define TK_ESC          (TK_CTL('['))
 127
 128 /* line-oriented input and output */
 129 char *led_prompt(char *pref, char *post, char **kmap);
 130 char *led_input(char *pref, char *post, char *ai, int ai_max, char **kmap);
 131 char *led_read(char **kmap);
 132 void led_print(char *msg, int row);
 133 int led_pos(char *s, int pos);
 134
 135 /* ex commands */
 136 void ex(void);
 137 void ex_command(char *cmd);
 138 char *ex_read(char *msg);
 139 void ex_print(char *line);
 140 void ex_show(char *msg);
 141 int ex_init(char **files);
 142 void ex_done(void);
 143 char *ex_path(void);
 144 char *ex_filetype(void);
 145 struct lbuf *ex_lbuf(void);
 146
 147 #define xb      ex_lbuf()
 148
 149 /* process management */
 150 char *cmd_pipe(char *cmd, char *s, int iproc, int oproc);
 151 int cmd_exec(char *cmd);
 152
 153 /* syntax highlighting */
 154 #define SYN_BD          0x010000
 155 #define SYN_IT          0x020000
 156 #define SYN_RV          0x040000
 157 #define SYN_FGMK(f)     (0x100000 | (f))
 158 #define SYN_BGMK(b)     (0x200000 | ((b) << 8))
 159
 160 #define SYN_FLG         0xff0000
 161 #define SYN_FGSET(a)    ((a) & 0x1000ff)
 162 #define SYN_BGSET(a)    ((a) & 0x20ff00)
 163 #define SYN_FG(a)       ((a) & 0xff)
 164 #define SYN_BG(a)       (((a) >> 8) & 0xff)
 165
 166 int *syn_highlight(char *ft, char *s);
 167 char *syn_filetype(char *path);
 168 int syn_merge(int old, int new);
 169 void syn_init(void);
 170 void syn_done(void);
 171
 172 /* configuration variables */
 173 char *conf_kmapalt(void);
 174 int conf_dirmark(int idx, char **pat, int *ctx, int *dir, int *grp);
 175 int conf_dircontext(int idx, char **pat, int *ctx);
 176 int conf_placeholder(int idx, char **s, char **d, int *wid);
 177 int conf_highlight(int idx, char **ft, int **att, char **pat, int *end);
 178 int conf_filetype(int idx, char **ft, char **pat);
 179 int conf_highlight_revdir(int *att);
 180
 181 /* global variables */
 182 extern int xrow;
 183 extern int xoff;
 184 extern int xtop;
 185 extern int xvis;
 186 extern int xled;
 187 extern int xquit;
 188 extern int xic;
 189 extern int xai;
 190 extern int xdir;
 191 extern int xshape;
 192 extern int xorder;
 193 extern int xhl;
 194
 195 #define EXLEN           512     /* ex line length */
 196
 197 extern char xfindkwd[EXLEN];
 198 extern int xfinddir;