tvi.h - neatvi - [fork] simple vi-type editor with UTF-8 support
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tvi.h (6644B)
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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 int lbuf_rd(struct lbuf *lbuf, int fd, int beg, int end);
12 int lbuf_wr(struct lbuf *lbuf, int fd, int beg, int end);
13 void lbuf_edit(struct lbuf *lbuf, char *s, int beg, int end);
14 char *lbuf_cp(struct lbuf *lbuf, int beg, int end);
15 char *lbuf_get(struct lbuf *lbuf, int pos);
16 int lbuf_len(struct lbuf *lbuf);
17 void lbuf_mark(struct lbuf *lbuf, int mark, int pos, int off);
18 int lbuf_jump(struct lbuf *lbuf, int mark, int *pos, int *off);
19 int lbuf_undo(struct lbuf *lbuf);
20 int lbuf_redo(struct lbuf *lbuf);
21 int lbuf_modified(struct lbuf *lb);
22 void lbuf_saved(struct lbuf *lb, int clear);
23 int lbuf_indents(struct lbuf *lb, int r);
24 int lbuf_eol(struct lbuf *lb, int r);
25 void lbuf_globset(struct lbuf *lb, int pos, int dep);
26 int lbuf_globget(struct lbuf *lb, int pos, int dep);
27 /* motions */
28 int lbuf_findchar(struct lbuf *lb, char *cs, int cmd, int n, int *r, int *o);
29 int lbuf_search(struct lbuf *lb, char *kw, int dir, int *r, int *o, int *len);
30 int lbuf_paragraphbeg(struct lbuf *lb, int dir, int *row, int *off);
31 int lbuf_sectionbeg(struct lbuf *lb, int dir, int *row, int *off);
32 int lbuf_wordbeg(struct lbuf *lb, int big, int dir, int *row, int *off);
33 int lbuf_wordend(struct lbuf *lb, int big, int dir, int *row, int *off);
34 int lbuf_pair(struct lbuf *lb, int *row, int *off);
35
36 /* string buffer, variable-sized string */
37 struct sbuf *sbuf_make(void);
38 void sbuf_free(struct sbuf *sb);
39 char *sbuf_done(struct sbuf *sb);
40 char *sbuf_buf(struct sbuf *sb);
41 void sbuf_chr(struct sbuf *sb, int c);
42 void sbuf_str(struct sbuf *sb, char *s);
43 void sbuf_mem(struct sbuf *sb, char *s, int len);
44 void sbuf_printf(struct sbuf *sbuf, char *s, ...);
45 int sbuf_len(struct sbuf *sb);
46 void sbuf_cut(struct sbuf *s, int len);
47
48 /* regular expressions */
49 #define RE_ICASE 1
50 #define RE_NOTBOL 2
51 #define RE_NOTEOL 4
52 /* regular expression sets: searching for multiple regular expressions */
53 struct rset *rset_make(int n, char **pat, int flg);
54 int rset_find(struct rset *re, char *s, int n, int *grps, int flg);
55 void rset_free(struct rset *re);
56 char *re_read(char **src);
57 /* searching for a single pattern regular expression */
58 struct rstr *rstr_make(char *re, int flg);
59 int rstr_find(struct rstr *rs, char *s, int n, int *grps, int flg);
60 void rstr_free(struct rstr *rs);
61
62 /* rendering lines */
63 int *ren_position(char *s);
64 int ren_next(char *s, int p, int dir);
65 int ren_eol(char *s, int dir);
66 int ren_pos(char *s, int off);
67 int ren_cursor(char *s, int pos);
68 int ren_noeol(char *s, int p);
69 int ren_off(char *s, int pos);
70 int ren_wid(char *s);
71 int ren_region(char *s, int c1, int c2, int *l1, int *l2, int closed);
72 char *ren_translate(char *s, char *ln);
73 int ren_cwid(char *s, int pos);
74
75 /* text direction */
76 int dir_context(char *s);
77 void dir_reorder(char *s, int *ord);
78 void dir_init(void);
79 void dir_done(void);
80
81 /* string registers */
82 char *reg_get(int c, int *lnmode);
83 void reg_put(int c, char *s, int lnmode);
84 void reg_done(void);
85
86 /* utf-8 helper functions */
87 int uc_len(char *s);
88 int uc_wid(char *s);
89 int uc_slen(char *s);
90 int uc_code(char *s);
91 char *uc_chr(char *s, int off);
92 int uc_off(char *s, int off);
93 char *uc_sub(char *s, int beg, int end);
94 char *uc_dup(char *s);
95 int uc_isspace(char *s);
96 int uc_isprint(char *s);
97 int uc_isdigit(char *s);
98 int uc_isalpha(char *s);
99 int uc_kind(char *c);
100 int uc_isbell(char *c);
101 int uc_iscomb(char *c);
102 char **uc_chop(char *s, int *n);
103 char *uc_next(char *s);
104 char *uc_prev(char *beg, char *s);
105 char *uc_beg(char *beg, char *s);
106 char *uc_end(char *s);
107 char *uc_shape(char *beg, char *s);
108 char *uc_lastline(char *s);
109
110 /* managing the terminal */
111 #define xrows (term_rows() - 1)
112 #define xcols (term_cols())
113
114 void term_init(void);
115 void term_done(void);
116 void term_suspend(void);
117 void term_str(char *s);
118 void term_chr(int ch);
119 void term_pos(int r, int c);
120 void term_clear(void);
121 void term_kill(void);
122 void term_room(int n);
123 int term_rows(void);
124 int term_cols(void);
125 int term_read(void);
126 void term_record(void);
127 void term_commit(void);
128 char *term_att(int att, int old);
129 void term_push(char *s, int n);
130 char *term_cmd(int *n);
131
132 #define TK_CTL(x) ((x) & 037)
133 #define TK_INT(c) ((c) < 0 || (c) == TK_ESC || (c) == TK_CTL('c'))
134 #define TK_ESC (TK_CTL('['))
135
136 /* line-oriented input and output */
137 char *led_prompt(char *pref, char *post, int *kmap, char *syn);
138 char *led_input(char *pref, char *post, int *kmap, char *syn);
139 void led_print(char *msg, int row, char *syn);
140 void led_printmsg(char *s, int row, char *syn);
141 char *led_read(int *kmap);
142 int led_pos(char *s, int pos);
143
144 /* ex commands */
145 void ex(void);
146 void ex_command(char *cmd);
147 char *ex_read(char *msg);
148 void ex_print(char *line);
149 void ex_show(char *msg);
150 int ex_init(char **files);
151 void ex_done(void);
152 char *ex_path(void);
153 char *ex_filetype(void);
154 struct lbuf *ex_lbuf(void);
155 int ex_kwd(char **kwd, int *dir);
156 void ex_kwdset(char *kwd, int dir);
157
158 #define EXLEN 512 /* ex line length */
159 #define xb ex_lbuf()
160
161 /* process management */
162 char *cmd_pipe(char *cmd, char *s, int iproc, int oproc);
163 int cmd_exec(char *cmd);
164
165 /* syntax highlighting */
166 #define SYN_BD 0x010000
167 #define SYN_IT 0x020000
168 #define SYN_RV 0x040000
169 #define SYN_FGMK(f) (0x100000 | (f))
170 #define SYN_BGMK(b) (0x200000 | ((b) << 8))
171
172 #define SYN_FLG 0xff0000
173 #define SYN_FGSET(a) ((a) & 0x1000ff)
174 #define SYN_BGSET(a) ((a) & 0x20ff00)
175 #define SYN_FG(a) ((a) & 0xff)
176 #define SYN_BG(a) (((a) >> 8) & 0xff)
177
178 int *syn_highlight(char *ft, char *s);
179 char *syn_filetype(char *path);
180 void syn_context(int att);
181 int syn_merge(int old, int new);
182 void syn_init(void);
183 void syn_done(void);
184
185 /* configuration variables */
186 int conf_dirmark(int idx, char **pat, int *ctx, int *dir, int *grp);
187 int conf_dircontext(int idx, char **pat, int *ctx);
188 int conf_placeholder(int idx, char **s, char **d, int *wid);
189 int conf_highlight(int idx, char **ft, int **att, char **pat, int *end);
190 int conf_filetype(int idx, char **ft, char **pat);
191 int conf_hlrev(void);
192 int conf_hlline(void);
193 int conf_mode(void);
194 char **conf_kmap(int id);
195 int conf_kmapfind(char *name);
196 char *conf_digraph(int c1, int c2);
197 char *conf_lnpref(void);
198
199 /* global variables */
200 extern int xrow;
201 extern int xoff;
202 extern int xtop;
203 extern int xleft;
204 extern int xvis;
205 extern int xled;
206 extern int xquit;
207 extern int xic;
208 extern int xai;
209 extern int xtd;
210 extern int xshape;
211 extern int xorder;
212 extern int xhl;
213 extern int xhll;
214 extern int xkmap;
215 extern int xkmap_alt;
216 extern int xlim;