cl/cl_bsd.c

   1 /*-
   2  * Copyright (c) 1995, 1996
   3  *      Keith Bostic.  All rights reserved.
   4  *
   5  * See the LICENSE file for redistribution information.
   6  */
   7
   8 #include "config.h"
   9
  10 #ifndef lint
  11 static const char sccsid[] = "$Id: cl_bsd.c,v 8.32 2000/12/01 13:56:17 skimo Exp $ (Berkeley) $Date: 2000/12/01 13:56:17 $";
  12 #endif /* not lint */
  13
  14 #include <sys/types.h>
  15 #include <sys/queue.h>
  16 #include <sys/time.h>
  17
  18 #include <bitstring.h>
  19 #include <ctype.h>
  20 #include <signal.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <termios.h>
  25 #include <unistd.h>
  26
  27 #include "../common/common.h"
  28 #include "../vi/vi.h"
  29 #include "cl.h"
  30
  31 static char     *ke;                            /* Keypad on. */
  32 static char     *ks;                            /* Keypad off. */
  33 static char     *vb;                            /* Visible bell string. */
  34
  35 /*
  36  * HP's support the entire System V curses package except for the tigetstr
  37  * and tigetnum functions.  Ultrix supports the BSD curses package except
  38  * for the idlok function.  Cthulu only knows why.  Break things up into a
  39  * minimal set of functions.
  40  */
  41
  42 #ifndef HAVE_CURSES_WADDNSTR
  43 /*
  44  * waddnstr --
  45  *
  46  * PUBLIC: #ifndef HAVE_CURSES_WADDNSTR
  47  * PUBLIC: int waddnstr __P((WINDOW*, char *, int));
  48  * PUBLIC: #endif
  49  */
  50 int
  51 waddnstr(w, s, n)
  52         WINDOW *w;
  53         char *s;
  54         int n;
  55 {
  56         int ch;
  57
  58         while (n-- && (ch = *s++))
  59                 waddch(w, ch);
  60         return (OK);
  61 }
  62 #endif
  63
  64 #ifndef HAVE_CURSES_BEEP
  65 /*
  66  * beep --
  67  *
  68  * PUBLIC: #ifndef HAVE_CURSES_BEEP
  69  * PUBLIC: void beep __P((void));
  70  * PUBLIC: #endif
  71  */
  72 void
  73 beep()
  74 {
  75         (void)write(1, "\007", 1);      /* '\a' */
  76 }
  77 #endif /* !HAVE_CURSES_BEEP */
  78
  79 #ifndef HAVE_CURSES_FLASH
  80 /*
  81  * flash --
  82  *      Flash the screen.
  83  *
  84  * PUBLIC: #ifndef HAVE_CURSES_FLASH
  85  * PUBLIC: void flash __P((void));
  86  * PUBLIC: #endif
  87  */
  88 void
  89 flash()
  90 {
  91         if (vb != NULL) {
  92                 (void)tputs(vb, 1, cl_putchar);
  93                 (void)fflush(stdout);
  94         } else
  95                 beep();
  96 }
  97 #endif /* !HAVE_CURSES_FLASH */
  98
  99 #ifndef HAVE_CURSES_IDLOK
 100 /*
 101  * idlok --
 102  *      Turn on/off hardware line insert/delete.
 103  *
 104  * PUBLIC: #ifndef HAVE_CURSES_IDLOK
 105  * PUBLIC: void idlok __P((WINDOW *, int));
 106  * PUBLIC: #endif
 107  */
 108 void
 109 idlok(win, bf)
 110         WINDOW *win;
 111         int bf;
 112 {
 113         return;
 114 }
 115 #endif /* !HAVE_CURSES_IDLOK */
 116
 117 #ifndef HAVE_CURSES_KEYPAD
 118 /*
 119  * keypad --
 120  *      Put the keypad/cursor arrows into or out of application mode.
 121  *
 122  * PUBLIC: #ifndef HAVE_CURSES_KEYPAD
 123  * PUBLIC: int keypad __P((void *, int));
 124  * PUBLIC: #endif
 125  */
 126 int
 127 keypad(a, on)
 128         void *a;
 129         int on;
 130 {
 131         char *p;
 132
 133         if ((p = tigetstr(on ? "smkx" : "rmkx")) != (char *)-1) {
 134                 (void)tputs(p, 0, cl_putchar);
 135                 (void)fflush(stdout);
 136         }
 137         return (0);
 138 }
 139 #endif /* !HAVE_CURSES_KEYPAD */
 140
 141 #ifndef HAVE_CURSES_NEWTERM
 142 /*
 143  * newterm --
 144  *      Create a new curses screen.
 145  *
 146  * PUBLIC: #ifndef HAVE_CURSES_NEWTERM
 147  * PUBLIC: void *newterm __P((const char *, FILE *, FILE *));
 148  * PUBLIC: #endif
 149  */
 150 void *
 151 newterm(a, b, c)
 152         const char *a;
 153         FILE *b, *c;
 154 {
 155         return (initscr());
 156 }
 157 #endif /* !HAVE_CURSES_NEWTERM */
 158
 159 #ifndef HAVE_CURSES_SETUPTERM
 160 /*
 161  * setupterm --
 162  *      Set up terminal.
 163  *
 164  * PUBLIC: #ifndef HAVE_CURSES_SETUPTERM
 165  * PUBLIC: void setupterm __P((char *, int, int *));
 166  * PUBLIC: #endif
 167  */
 168 void
 169 setupterm(ttype, fno, errp)
 170         char *ttype;
 171         int fno, *errp;
 172 {
 173         static char buf[2048];
 174         char *p;
 175
 176         if ((*errp = tgetent(buf, ttype)) > 0) {
 177                 if (ke != NULL)
 178                         free(ke);
 179                 ke = ((p = tigetstr("rmkx")) == (char *)-1) ?
 180                     NULL : strdup(p);
 181                 if (ks != NULL)
 182                         free(ks);
 183                 ks = ((p = tigetstr("smkx")) == (char *)-1) ?
 184                     NULL : strdup(p);
 185                 if (vb != NULL)
 186                         free(vb);
 187                 vb = ((p = tigetstr("flash")) == (char *)-1) ?
 188                     NULL : strdup(p);
 189         }
 190 }
 191 #endif /* !HAVE_CURSES_SETUPTERM */
 192
 193 #ifndef HAVE_CURSES_TIGETSTR
 194 /* Terminfo-to-termcap translation table. */
 195 typedef struct _tl {
 196         char *terminfo;                 /* Terminfo name. */
 197         char *termcap;                  /* Termcap name. */
 198 } TL;
 199 static const TL list[] = {
 200         "cols",         "co",           /* Terminal columns. */
 201         "cup",          "cm",           /* Cursor up. */
 202         "cuu1",         "up",           /* Cursor up. */
 203         "el",           "ce",           /* Clear to end-of-line. */
 204         "flash",        "vb",           /* Visible bell. */
 205         "kcub1",        "kl",           /* Cursor left. */
 206         "kcud1",        "kd",           /* Cursor down. */
 207         "kcuf1",        "kr",           /* Cursor right. */
 208         "kcuu1",        "ku",           /* Cursor up. */
 209         "kdch1",        "kD",           /* Delete character. */
 210         "kdl1",         "kL",           /* Delete line. */
 211         "ked",          "kS",           /* Delete to end of screen. */
 212         "kel",          "kE",           /* Delete to eol. */
 213         "kend",         "@7",           /* Go to eol. */
 214         "khome",        "kh",           /* Go to sol. */
 215         "kich1",        "kI",           /* Insert at cursor. */
 216         "kil1",         "kA",           /* Insert line. */
 217         "kind",         "kF",           /* Scroll down. */
 218         "kll",          "kH",           /* Go to eol. */
 219         "knp",          "kN",           /* Page down. */
 220         "kpp",          "kP",           /* Page up. */
 221         "kri",          "kR",           /* Scroll up. */
 222         "lines",        "li",           /* Terminal lines. */
 223         "rmcup",        "te",           /* Terminal end string. */
 224         "rmkx",         "ke",           /* Exit "keypad-transmit" mode. */
 225         "rmso",         "se",           /* Standout end. */
 226         "smcup",        "ti",           /* Terminal initialization string. */
 227         "smkx",         "ks",           /* Enter "keypad-transmit" mode. */
 228         "smso",         "so",           /* Standout begin. */
 229 };
 230
 231 #ifdef _AIX
 232 /*
 233  * AIX's implementation for function keys greater than 10 is different and
 234  * only goes as far as 36.
 235  */
 236 static const char codes[] = {
 237 /*  0-10 */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ';',
 238 /* 11-20 */ '<', '>', '!', '@', '#', '$', '%', '^', '&', '*',
 239 /* 21-30 */ '(', ')', '-', '_', '+', ',', ':', '?', '[', ']',
 240 /* 31-36 */ '{', '}', '|', '~', '/', '='
 241 };
 242
 243 #else
 244
 245 /*
 246  * !!!
 247  * Historically, the 4BSD termcap code didn't support functions keys greater
 248  * than 9.  This was silently enforced -- asking for key k12 would return the
 249  * value for k1.  We try and get around this by using the tables specified in
 250  * the terminfo(TI_ENV) man page from the 3rd Edition SVID.  This assumes the
 251  * implementors of any System V compatibility code or an extended termcap used
 252  * those codes.
 253  */
 254 static const char codes[] = {
 255 /*  0-10 */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ';',
 256 /* 11-19 */ '1', '2', '3', '4', '5', '6', '7', '8', '9',
 257 /* 20-63 */ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
 258             'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
 259             'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
 260             'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
 261 };
 262 #endif /* _AIX */
 263
 264 /*
 265  * lcmp --
 266  *      list comparison routine for bsearch.
 267  */
 268 static int
 269 lcmp(a, b)
 270         const void *a, *b;
 271 {
 272         return (strcmp(a, ((TL *)b)->terminfo));
 273 }
 274
 275 /*
 276  * tigetstr --
 277  *
 278  * Vendors put the prototype for tigetstr into random include files, including
 279  * <term.h>, which we can't include because it makes other systems unhappy.
 280  * Try and work around the problem, since we only care about the return value.
 281  *
 282  * PUBLIC: #ifdef HAVE_CURSES_TIGETSTR
 283  * PUBLIC: char *tigetstr();
 284  * PUBLIC: #else
 285  * PUBLIC: char *tigetstr __P((char *));
 286  * PUBLIC: #endif
 287  */
 288 char *
 289 tigetstr(name)
 290         char *name;
 291 {
 292         static char sbuf[256];
 293         TL *tlp;
 294         int n;
 295         char *p, keyname[3];
 296
 297         if ((tlp = bsearch(name,
 298             list, sizeof(list) / sizeof(TL), sizeof(TL), lcmp)) == NULL) {
 299 #ifdef _AIX
 300                 if (name[0] == 'k' &&
 301                     name[1] == 'f' && (n = atoi(name + 2)) <= 36) {
 302                         keyname[0] = 'k';
 303                         keyname[1] = codes[n];
 304                         keyname[2] = '\0';
 305 #else
 306                 if (name[0] == 'k' &&
 307                     name[1] == 'f' && (n = atoi(name + 2)) <= 63) {
 308                         keyname[0] = n <= 10 ? 'k' : 'F';
 309                         keyname[1] = codes[n];
 310                         keyname[2] = '\0';
 311 #endif
 312                         name = keyname;
 313                 }
 314         } else
 315                 name = tlp->termcap;
 316
 317         p = sbuf;
 318 #ifdef _AIX
 319         return ((p = tgetstr(name, &p)) == NULL ? (char *)-1 : strcpy(sbuf, p));
 320 #else
 321         return (tgetstr(name, &p) == NULL ? (char *)-1 : sbuf);
 322 #endif
 323 }
 324
 325 /*
 326  * tigetnum --
 327  *
 328  * PUBLIC: #ifndef HAVE_CURSES_TIGETSTR
 329  * PUBLIC: int tigetnum __P((char *));
 330  * PUBLIC: #endif
 331  */
 332 int
 333 tigetnum(name)
 334         char *name;
 335 {
 336         TL *tlp;
 337         int val;
 338
 339         if ((tlp = bsearch(name,
 340             list, sizeof(list) / sizeof(TL), sizeof(TL), lcmp)) != NULL) {
 341                 name = tlp->termcap;
 342         }
 343
 344         return ((val = tgetnum(name)) == -1 ? -2 : val);
 345 }
 346 #endif /* !HAVE_CURSES_TIGETSTR */