2 Generalized console input/output handler
3 Kern Sibbald, December MMIII
24 /* Global functions imported */
27 extern char *getenv(char *);
29 static void add_smap(char *str, int func);
31 /* From termios library */
35 /* Global variables */
37 static char *t_up = "\n"; /* scroll up character */
38 static char *t_honk = "\007"; /* sound beep */
39 static char *t_il; /* insert line */
40 static char *t_dl; /* delete line */
41 static char *t_cs; /* clear screen */
42 static char *t_cl; /* clear line */
43 static int t_width = 79; /* terminal width */
44 static int t_height = 24; /* terminal height */
45 static int linsdel_ok = 0; /* set if term has line insert & delete fncs */
47 static char *t_cm; /* cursor positioning */
48 static char *t_ti; /* init sequence */
49 static char *t_te; /* end sequence */
50 static char *t_do; /* down one line */
51 static char *t_sf; /* scroll screen one line up */
53 /* Keypad and Function Keys */
54 static char *kl; /* left key */
55 static char *kr; /* right */
56 static char *ku; /* up */
57 static char *kd; /* down */
58 static char *kh; /* home */
59 static char *kb; /* backspace */
60 static char *kD; /* delete key */
61 static char *kI; /* insert */
62 static char *kN; /* next page */
63 static char *kP; /* previous page */
64 static char *kH; /* home */
65 static char *kE; /* end */
68 #define EOS '\0' /* end of string terminator */
74 * Stab entry. Input chars (str), the length, and the desired
77 typedef struct s_stab {
86 static stab_t **stab = NULL; /* array of stabs by length */
87 static int num_stab; /* size of stab array */
91 static bool old_term_params_set = false;
92 static struct termios old_term_params;
94 /* Maintain lines in a doubly linked circular pool of lines. Each line is
95 preceded by a header defined by the lstr structure */
98 struct lstr { /* line pool structure */
99 struct lstr *prevl; /* link to previous line */
100 struct lstr *nextl; /* link to next line */
101 long len; /* length of line+header */
102 char used; /* set if line valid */
103 char line; /* line is actually varying length */
107 #define POOLEN 128000 /* bytes in line pool */
109 #define POOLEN 500 /* bytes in line pool */
111 char pool[POOLEN]; /* line pool */
112 #define PHDRL ((int)sizeof(struct lstr)) /* length of line header */
114 static struct lstr *lptr; /* current line pointer */
115 static struct lstr *slptr; /* store line pointer */
117 static char *getnext(), *getprev();
118 static int first = 1;
119 static int mode_insert = 0;
120 static int mode_wspace = 1; /* words separated by spaces */
122 /* Forward referenced functions */
123 static void sigintcatcher(int);
125 /* Global variables Exported */
127 static short char_map[600]= {
128 0, F_SOL, /* ^a Line start */
129 F_PRVWRD, /* ^b Previous word */ F_BREAK, /* ^C break */
130 F_DELCHR, /* ^D Delete character */ F_EOL, /* ^e End of line */
131 F_CSRRGT, /* ^f Right */ F_TABBAK, /* ^G Back tab */
132 F_CSRLFT, /* ^H Left */ F_TAB, /* ^I Tab */
133 F_CSRDWN, /* ^J Down */ F_DELEOL, /* ^K kill to eol */
134 F_CLRSCRN,/* ^L clear screen */ F_RETURN, /* ^M Carriage return */
135 F_RETURN, /* ^N enter line */ F_CONCAT, /* ^O Concatenate lines */
136 F_CSRUP, /* ^P cursor up */ F_TINS, /* ^Q Insert character mode */
137 F_PAGUP, /* ^R Page up */ F_CENTER, /* ^S Center text */
138 F_PAGDWN, /* ^T Page down */ F_DELSOL, /* ^U delete to start of line */
139 F_DELWRD, /* ^V Delete word */ F_PRVWRD, /* ^W Previous word */
140 F_NXTMCH, /* ^X Next match */ F_DELEOL, /* ^Y Delete to end of line */
141 F_BACKGND,/* ^Z Background */ 0x1B, /* ^[=ESC escape */
142 F_TENTRY, /* ^\ Entry mode */ F_PASTECB,/* ^]=paste clipboard */
143 F_HOME, /* ^^ Home */ F_ERSLIN, /* ^_ Erase line */
145 ' ','!','"','#','$','%','&','\047',
146 '(',')','*','+','\054','-','.','/',
147 '0','1','2','3','4','5','6','7',
148 '8','9',':',';','<','=','>','?',
149 '@','A','B','C','D','E','F','G',
150 'H','I','J','K','L','M','N','O',
151 'P','Q','R','S','T','U','V','W',
152 'X','Y','Z','[','\\',']','^','_',
153 '\140','a','b','c','d','e','f','g',
154 'h','i','j','k','l','m','n','o',
155 'p','q','r','s','t','u','v','w',
156 'x','y','z','{','|','}','\176',F_ERSCHR /* erase character */
161 #define NVID 0x1E /* normal video -- blue */
162 #define RVID 0x4F /* reverse video -- red */
163 #define MNVID 0x07 /* normal video (monochrome tube) */
164 #define MRVID 0x70 /* reverse video (monochrome tube) */
167 /* Local variables */
169 #define CR '\r' /* carriage return */
172 /* Function Prototypes */
174 static int input_char(void);
175 static int t_gnc(void);
176 static void insert_space(char *curline, int line_len);
177 static void forward(int i, char *str, int str_len);
178 static void backup(int i);
179 static void delchr(int cnt, char *curline, int line_len);
180 static int iswordc(char c);
181 static int next_word(char *ldb_buf);
182 static int prev_word(char *ldb_buf);
183 static void prtcur(char *str);
184 static void poolinit(void);
185 static char * getnext(void);
186 static char * getprev(void);
187 static void putline(char *newl, int newlen);
188 static void t_honk_horn(void);
189 static void t_insert_line(void);
190 static void t_delete_line(void);
191 static void t_clrline(int pos, int width);
192 void t_sendl(char *msg, int len);
193 void t_send(char *msg);
195 static void asclrs();
196 static void ascurs(int y, int x);
198 static void rawmode(FILE *input);
199 static void normode(void);
200 static int t_getch();
201 static void trapctlc();
202 static void asclrl(int pos, int width);
203 static void asinsl();
204 static void asdell();
206 int input_line(char *string, int length);
208 void con_init(FILE *input)
217 void con_set_zed_keys(void)
219 char_map[1] = F_NXTWRD; /* ^A Next Word */
220 char_map[2] = F_SPLIT; /* ^B Split line */
221 char_map[3] = F_EOI; /* ^C Quit */
222 char_map[4] = F_DELCHR; /* ^D Delete character */
223 char_map[5] = F_EOF; /* ^E End of file */
224 char_map[6] = F_INSCHR; /* ^F Insert character */
225 char_map[7] = F_TABBAK; /* ^G Back tab */
226 char_map[8] = F_CSRLFT; /* ^H Left */
227 char_map[9] = F_TAB; /* ^I Tab */
228 char_map[10] = F_CSRDWN; /* ^J Down */
229 char_map[11] = F_CSRUP; /* ^K Up */
230 char_map[12] = F_CSRRGT; /* ^L Right */
231 char_map[13] = F_RETURN; /* ^M Carriage return */
232 char_map[14] = F_EOL; /* ^N End of line */
233 char_map[15] = F_CONCAT; /* ^O Concatenate lines */
234 char_map[16] = F_MARK; /* ^P Set marker */
235 char_map[17] = F_TINS; /* ^Q Insert character mode */
236 char_map[18] = F_PAGUP; /* ^R Page up */
237 char_map[19] = F_CENTER; /* ^S Center text */
238 char_map[20] = F_PAGDWN; /* ^T Page down */
239 char_map[21] = F_SOL; /* ^U Line start */
240 char_map[22] = F_DELWRD; /* ^V Delete word */
241 char_map[23] = F_PRVWRD; /* ^W Previous word */
242 char_map[24] = F_NXTMCH; /* ^X Next match */
243 char_map[25] = F_DELEOL; /* ^Y Delete to end of line */
244 char_map[26] = F_DELLIN; /* ^Z Delete line */
246 char_map[28] = F_TENTRY; /* ^\ Entry mode */
247 char_map[29] = F_PASTECB;/* ^]=paste clipboard */
248 char_map[30] = F_HOME; /* ^^ Home */
249 char_map[31] = F_ERSLIN; /* ^_ Erase line */
260 * Guarantee that the string is properly terminated */
261 static char *bstrncpy(char *dest, const char *src, int maxlen)
263 strncpy(dest, src, maxlen-1);
271 * New style string mapping to function code
273 static int do_smap(int c)
292 for (i=len-1; i<MAX_STAB; i++) {
293 for (tstab=stab[i]; tstab; tstab=tstab->next) {
294 if (strncmp(str, tstab->str, len) == 0) {
295 if (len == tstab->len) {
299 break; /* found possibility continue searching */
306 /* found partial match, so get next character and retry */
307 str[len++] = t_gnc();
313 static void dump_stab()
319 for (i=0; i<MAX_STAB; i++) {
320 for (tstab=stab[i]; tstab; tstab=tstab->next) {
321 for (j=0; j<tstab->len; j++) {
323 if (c < 0x20 || c > 0x7F) {
324 sprintf(buf, " 0x%x ", c);
332 sprintf(buf, " func=%d len=%d\n\r", tstab->func, tstab->len);
340 * New routine. Add string to string->func mapping table.
342 static void add_smap(char *str, int func)
352 /* errmsg("String for func %d is zero length\n", func); */
355 tstab = (stab_t *)malloc(sizeof(stab_t));
356 memset(tstab, 0, sizeof(stab_t));
358 tstab->str = (char *)malloc(tstab->len + 1);
359 bstrncpy(tstab->str, str, tstab->len + 1);
361 if (tstab->len > num_stab) {
362 printf("stab string too long %d. Max is %d\n", tstab->len, num_stab);
365 tstab->next = stab[tstab->len-1];
366 stab[tstab->len-1] = tstab;
367 /* printf("Add_smap tstab=%x len=%d func=%d tstab->next=%x\n\r", tstab, len,
368 func, tstab->next); */
373 /* Get the next character from the terminal - performs table lookup on
374 the character to do the desired translation */
380 if ((c=t_gnc()) <= 599) { /* IBM generates codes up to 260 */
382 } else if (c > 1000) { /* stuffed function */
383 c -= 1000; /* convert back to function code */
388 /* if we got a screen size escape sequence, read height, width */
391 y = t_gnc() - 0x20; /* y */
392 x = t_gnc() - 0x20; /* x */
399 /* Get a complete input line */
402 /*FCN*/input_line(char *string, int length)
404 char curline[200]; /* edit buffer */
409 poolinit(); /* build line pool */
412 noline = 1; /* no line fetched yet */
413 for (cl=cp=0; cl<length && cl<(int)sizeof(curline); ) {
414 switch (c=(int)input_char()) {
415 case F_RETURN: /* CR */
416 t_sendl("\r\n", 2); /* yes, print it and */
417 goto done; /* get out */
418 case F_CLRSCRN: /* clear screen */
420 t_sendl(curline, cl);
424 if (noline) { /* no line fetched yet */
425 getnext(); /* getnext so getprev gets current */
426 noline = 0; /* we now have line */
428 bstrncpy(curline, getprev(), sizeof(curline));
432 noline = 0; /* mark line fetched */
433 bstrncpy(curline, getnext(), sizeof(curline));
437 insert_space(curline, sizeof(curline));
440 delchr(1, curline, sizeof(curline)); /* delete one character */
442 case F_CSRLFT: /* Backspace */
446 forward(1,curline, sizeof(curline));
448 case F_ERSCHR: /* Rubout */
450 delchr(1, curline, sizeof(curline));
453 t_clrline(0, t_width);
458 forward(next_word(curline),curline, sizeof(curline));
461 backup(prev_word(curline));
464 delchr(next_word(curline), curline, sizeof(curline)); /* delete word */
466 case F_NXTMCH: /* Ctl-X */
468 *string = EOS; /* terminate string */
469 return(c); /* give it to him */
471 /* Note fall through */
474 backup(cp); /* backup to beginning of line */
475 t_clrline(0,t_width); /* erase line */
477 cl = 0; /* reset cursor counter */
484 forward(1,curline, sizeof(curline));
490 case F_TINS: /* toggle insert mode */
491 mode_insert = !mode_insert; /* flip bit */
494 if (c > 255) { /* function key hit */
495 if (cl==0) { /* if first character then */
496 *string = EOS; /* terminate string */
497 return c; /* return it */
499 t_honk_horn(); /* complain */
502 insert_space(curline, sizeof(curline));
504 curline[cp++] = c; /* store character in line being built */
505 t_char((char)c); /* echo character to terminal */
507 cl = cp; /* keep current length */
513 /* If we fall through here rather than goto done, the line is too long
514 simply return what we have now. */
516 curline[cl++] = EOS; /* terminate */
517 bstrncpy(string,curline,length); /* return line to caller */
518 /* Note, put line zaps curline */
519 putline(curline,cl); /* save line for posterity */
520 return 0; /* give it to him/her */
523 /* Insert a space at the current cursor position */
525 /*FCN*/insert_space(char *curline, int curline_len)
529 if (cp > cl || cl+1 > curline_len) return;
530 /* Note! source and destination overlap */
531 memmove(&curline[cp+1],&curline[cp],i=cl-cp);
535 forward(i,curline, curline_len);
540 /* Move cursor forward keeping characters under it */
542 /*FCN*/forward(int i,char *str, int str_len)
558 /* Backup cursor keeping characters under it */
562 for ( ;i && cp; i--,cp--)
566 /* Delete the character under the cursor */
568 /*FCN*/delchr(int cnt, char *curline, int line_len)
574 if ((i=cl-cp-cnt+1) > 0) {
575 memcpy(&curline[cp],&curline[cp+cnt],i);
577 curline[cl -= cnt] = EOS;
578 t_clrline(0,t_width);
580 forward(i=cl-cp,curline, line_len);
585 /* Determine if character is part of a word */
587 /*FCN*/iswordc(char c)
591 if (c >= '0' && c <= '9')
593 if (c == '$' || c == '%')
598 /* Return number of characters to get to next word */
600 /*FCN*/next_word(char *ldb_buf)
607 for ( ; ncp<cl && iswordc(*(ldb_buf+ncp)); ncp++) ;
608 for ( ; ncp<cl && !iswordc(*(ldb_buf+ncp)); ncp++) ;
612 /* Return number of characters to get to previous word */
614 /*FCN*/prev_word(char *ldb_buf)
618 if (cp == 0) /* if at begin of line stop now */
620 if (cp > cl) /* if past eol start at eol */
624 /* backup to end of previous word - i.e. skip special chars */
625 for (i=ncp-1; i && !iswordc(*(ldb_buf+i)); i--) ;
626 if (i == 0) { /* at beginning of line? */
627 return cp; /* backup to beginning */
629 /* now move back through word to beginning of word */
630 for ( ; i && iswordc(*(ldb_buf+i)); i--) ;
631 ncp = i+1; /* position to first char of word */
632 if (i==0 && iswordc(*ldb_buf)) /* check for beginning of line */
634 return cp-ncp; /* return count */
637 /* Display new current line */
639 /*FCN*/prtcur(char *str)
642 t_clrline(0,t_width);
643 cp = cl = strlen(str);
648 /* Initialize line pool. Split pool into two pieces. */
652 slptr = lptr = (struct lstr *)pool;
661 /* Return pointer to next line in the pool and advance current line pointer */
665 do { /* find next used line */
667 } while (!lptr->used);
668 return (char *)&lptr->line;
671 /* Return pointer to previous line in the pool */
675 do { /* find previous used line */
677 } while (!lptr->used);
678 return (char *)&lptr->line;
682 /*FCN*/putline(char *newl, int newlen)
684 struct lstr *nptr; /* points to next line */
687 lptr = slptr; /* get ptr to last line stored */
688 lptr = lptr->nextl; /* advance pointer */
689 if ((char *)lptr-pool+newlen+PHDRL > POOLEN) { /* not enough room */
690 lptr->used = 0; /* delete line */
691 lptr = (struct lstr *)pool; /* start at beginning of buffer */
693 while (lptr->len < newlen+PHDRL) { /* concatenate buffers */
694 nptr = lptr->nextl; /* point to next line */
695 lptr->nextl = nptr->nextl; /* unlink it from list */
696 nptr->nextl->prevl = lptr;
697 lptr->len += nptr->len;
699 if (lptr->len > newlen + 2 * PHDRL) { /* split buffer */
700 nptr = (struct lstr *)((char *)lptr + newlen + PHDRL);
701 /* Appropriate byte alignment - normally 2 byte, but on
702 sparc we need 4 byte alignment, so we always do 4 */
703 if (((unsigned)nptr & 3) != 0) { /* test four byte alignment */
705 nptr = (struct lstr *)((((unsigned) p) & ~3) + 4);
707 nptr->len = lptr->len - ((char *)nptr - (char *)lptr);
708 lptr->len -= nptr->len;
709 nptr->nextl = lptr->nextl; /* link in new buffer */
710 lptr->nextl->prevl = nptr;
715 memcpy(&lptr->line,newl,newlen);
716 lptr->used = 1; /* mark line used */
717 slptr = lptr; /* save as stored line */
722 /*FCN*/dump(struct lstr *ptr, char *msg)
724 printf("%s buf=%x nextl=%x prevl=%x len=%d used=%d\n",
725 msg,ptr,ptr->nextl,ptr->prevl,ptr->len,ptr->used);
727 printf("line=%s\n",&ptr->line);
729 #endif /* DEBUGOUT */
732 /* Honk horn on terminal */
739 /* Insert line on terminal */
741 /*FCN*/t_insert_line()
746 /* Delete line from terminal */
748 /*FCN*/t_delete_line()
753 /* clear line from pos to width */
755 /*FCN*/t_clrline(int pos, int width)
757 asclrl(pos, width); /* clear to end of line */
760 /* Helper function to add string preceded by
761 * ESC to smap table */
762 static void add_esc_smap(char *str, int func)
765 buf[0] = 0x1B; /* esc */
766 bstrncpy(buf+1, str, sizeof(buf)-1);
770 /* Set raw mode on terminal file. Basically, get the terminal into a
771 mode in which all characters can be read as they are entered. CBREAK
772 mode is not sufficient.
774 /*FCN*/static void rawmode(FILE *input)
777 static char term_buf[2048];
778 static char *term_buffer = term_buf;
779 char *termtype = (char *)getenv("TERM");
781 /* Make sure we are dealing with a terminal */
782 if (!isatty(fileno(input))) {
785 if (tcgetattr(0, &old_term_params) != 0) {
786 printf(_("conio: Cannot tcgetattr()\n"));
789 old_term_params_set = true;
791 t.c_cc[VMIN] = 1; /* satisfy read after 1 char */
793 t.c_iflag &= ~(BRKINT | IGNPAR | PARMRK | INPCK |
794 ISTRIP | ICRNL | IXON | IXOFF | INLCR | IGNCR);
795 t.c_iflag |= IGNBRK | ISIG;
796 // t.c_oflag &= ~(OPOST); /* no output processing */
798 t.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL | ICANON |
800 tcflush(0, TCIFLUSH);
801 if (tcsetattr(0, TCSANOW, &t) == -1) {
802 printf("Cannot tcsetattr()\n");
805 // signal(SIGQUIT, SIG_IGN);
806 // signal(SIGHUP, SIG_IGN);
807 // signal(SIGSTOP, SIG_IGN);
808 signal(SIGINT, sigintcatcher);
809 // signal(SIGWINCH, SIG_IGN);
810 // signal(SIGQUIT, SIG_IGN);
811 // signal(SIGCHLD, SIG_IGN);
812 // signal(SIGTSTP, SIG_IGN);
815 printf("Cannot get terminal type.\n");
818 if (tgetent(term_buffer, termtype) < 0) {
819 printf("Cannot get terminal termcap entry.\n");
822 t_width = t_height = -1;
823 t_width = tgetnum("co") - 1;
824 t_height = tgetnum("li");
827 t_cm = (char *)tgetstr("cm", &term_buffer);
828 t_cs = (char *)tgetstr("cl", &term_buffer); /* clear screen */
829 t_cl = (char *)tgetstr("ce", &term_buffer); /* clear line */
830 t_dl = (char *)tgetstr("dl", &term_buffer); /* delete line */
831 t_il = (char *)tgetstr("al", &term_buffer); /* insert line */
832 t_honk = (char *)tgetstr("bl", &term_buffer); /* beep */
833 t_ti = (char *)tgetstr("ti", &term_buffer);
834 t_te = (char *)tgetstr("te", &term_buffer);
835 t_up = (char *)tgetstr("up", &term_buffer);
836 t_do = (char *)tgetstr("do", &term_buffer);
837 t_sf = (char *)tgetstr("sf", &term_buffer);
839 num_stab = MAX_STAB; /* get default stab size */
840 stab = (stab_t **)malloc(sizeof(stab_t *) * num_stab);
841 memset(stab, 0, sizeof(stab_t *) * num_stab);
844 kl = (char *)tgetstr("kl", &term_buffer);
845 kr = (char *)tgetstr("kr", &term_buffer);
846 ku = (char *)tgetstr("ku", &term_buffer);
847 kd = (char *)tgetstr("kd", &term_buffer);
848 kh = (char *)tgetstr("kh", &term_buffer);
849 kb = (char *)tgetstr("kb", &term_buffer);
850 kD = (char *)tgetstr("kD", &term_buffer);
851 kI = (char *)tgetstr("kI", &term_buffer);
852 kN = (char *)tgetstr("kN", &term_buffer);
853 kP = (char *)tgetstr("kP", &term_buffer);
854 kH = (char *)tgetstr("kH", &term_buffer);
855 kE = (char *)tgetstr("kE", &term_buffer);
857 add_smap(kl, F_CSRLFT);
858 add_smap(kr, F_CSRRGT);
859 add_smap(ku, F_CSRUP);
860 add_smap(kd, F_CSRDWN);
861 add_smap(kI, F_TINS);
862 add_smap(kN, F_PAGDWN);
863 add_smap(kP, F_PAGUP);
864 add_smap(kH, F_HOME);
868 add_esc_smap("[A", F_CSRUP);
869 add_esc_smap("[B", F_CSRDWN);
870 add_esc_smap("[C", F_CSRRGT);
871 add_esc_smap("[D", F_CSRLFT);
872 add_esc_smap("[1~", F_HOME);
873 add_esc_smap("[2~", F_TINS);
874 add_esc_smap("[3~", F_DELCHR);
875 add_esc_smap("[4~", F_EOF);
876 add_esc_smap("f", F_NXTWRD);
877 add_esc_smap("b", F_PRVWRD);
881 for (i=301; i<600; i++) {
882 char_map[i] = i; /* setup IBM function codes */
888 /* Restore tty mode */
889 /*FCN*/static void normode()
891 if (old_term_params_set) {
892 tcsetattr(0, TCSANOW, &old_term_params);
896 /* Get next character from terminal/script file/unget buffer */
902 while ((ch=t_getch()) == 0) ; /* get next input character */
907 /* Get next character from OS */
908 static int t_getch(void)
912 if (read(0, &c, 1) != 1) {
920 /* window_size -- Return window height and width to caller. */
921 static int window_size(int *height, int *width) /* /window_size/ */
923 *width = tgetnum("co") - 1;
924 *height = tgetnum("li");
929 /* Send message to terminal - primitive routine */
931 /*FCN*/t_sendl(char *msg,int len)
937 /*FCN*/t_send(char *msg)
942 t_sendl(msg, strlen(msg)); /* faster than one char at time */
945 /* Send single character to terminal - primitive routine - */
947 /*FCN*/t_char(char c)
953 static int brkflg = 0; /* set on user break */
955 /* Routine to return true if user types break */
961 /* Clear break flag */
968 /* Interrupt caught here */
969 static void sigintcatcher(int sig)
972 signal(SIGINT, sigintcatcher);
977 /*FCN*/void trapctlc()
979 signal(SIGINT, sigintcatcher);
983 /* ASCLRL() -- Clear to end of line from current position */
984 static void asclrl(int pos, int width)
989 t_send(t_cl); /* use clear to eol function */
992 if (pos==1 && linsdel_ok) {
993 t_delete_line(); /* delete line */
994 t_insert_line(); /* reinsert it */
997 for (i=1; i<=width-pos+1; i++)
998 t_char(' '); /* last resort, blank it out */
999 for (i=1; i<=width-pos+1; i++) /* backspace to original position */
1006 /* ASCURS -- Set cursor position */
1007 static void ascurs(int y, int x)
1009 t_send((char *)tgoto(t_cm, x, y));
1013 /* ASCLRS -- Clear whole screen */
1014 static void asclrs()
1022 /* ASINSL -- insert new line after cursor */
1023 static void asinsl()
1025 t_clrline(0, t_width);
1026 t_send(t_il); /* insert before */
1029 /* ASDELL -- Delete line at cursor */
1030 static void asdell()