929 lines
19 KiB
C
929 lines
19 KiB
C
/* curses.c */
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/* Author:
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* Steve Kirkendall
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* 14407 SW Teal Blvd. #C
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* Beaverton, OR 97005
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* kirkenda@cs.pdx.edu
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*/
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/* This file contains the functions & variables needed for a tiny subset of
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* curses. The principle advantage of this version of curses is its
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* extreme speed. Disadvantages are potentially larger code, few supported
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* functions, limited compatibility with full curses, and only stdscr.
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*/
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#include "config.h"
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#include "vi.h"
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#if ANY_UNIX
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/* The termios/termio/sgtty #ifdefs were a mess, so I removed all but termios.
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* (KJB)
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*/
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# include <termios.h>
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# if MINIX
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# include <sys/ioctl.h>
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# endif
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#endif
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#if TOS
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# include <osbind.h>
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#endif
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#if OSK
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# include <sgstat.h>
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#endif
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#if VMS
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extern int VMS_read_raw; /* Set in initscr() */
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#endif
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extern char *getenv();
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static void starttcap();
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/* variables, publicly available & used in the macros */
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char *termtype; /* name of terminal entry */
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short ospeed; /* speed of the tty, eg B2400 */
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#if OSK
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char PC_; /* Pad char */
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char *BC; /* backspace character string */
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#else
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char PC; /* Pad char */
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#endif
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WINDOW *stdscr; /* pointer into kbuf[] */
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WINDOW kbuf[KBSIZ]; /* a very large output buffer */
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int LINES; /* :li#: number of rows */
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int COLS; /* :co#: number of columns */
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int AM; /* :am: boolean: auto margins? */
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int PT; /* :pt: boolean: physical tabs? */
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char *VB; /* :vb=: visible bell */
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char *UP; /* :up=: move cursor up */
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char *SO = ""; /* :so=: standout start */
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char *SE = ""; /* :se=: standout end */
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char *US = ""; /* :us=: underline start */
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char *UE = ""; /* :ue=: underline end */
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char *MD = ""; /* :md=: bold start */
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char *ME = ""; /* :me=: bold end */
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char *AS = ""; /* :as=: alternate (italic) start */
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char *AE = ""; /* :ae=: alternate (italic) end */
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#ifndef NO_VISIBLE
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char *MV; /* :mv=: "visible" selection start */
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#endif
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char *CM; /* :cm=: cursor movement */
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char *CE; /* :ce=: clear to end of line */
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char *CD; /* :cd=: clear to end of screen */
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char *AL; /* :al=: add a line */
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char *DL; /* :dl=: delete a line */
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#if OSK
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char *SR_; /* :sr=: scroll reverse */
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#else
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char *SR; /* :sr=: scroll reverse */
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#endif
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char *KS = ""; /* :ks=: init string for cursor */
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char *KE = ""; /* :ke=: restore string for cursor */
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char *KU; /* :ku=: key sequence sent by up arrow */
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char *KD; /* :kd=: key sequence sent by down arrow */
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char *KL; /* :kl=: key sequence sent by left arrow */
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char *KR; /* :kr=: key sequence sent by right arrow */
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char *HM; /* :HM=: key sequence sent by the <Home> key */
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char *EN; /* :EN=: key sequence sent by the <End> key */
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char *PU; /* :PU=: key sequence sent by the <PgUp> key */
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char *PD; /* :PD=: key sequence sent by the <PgDn> key */
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char *KI; /* :kI=: key sequence sent by the <Insert> key */
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#ifndef NO_FKEY
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char *FKEY[NFKEYS]; /* :k0=: ... :k9=: sequences sent by function keys */
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#endif
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char *IM = ""; /* :im=: insert mode start */
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char *IC = ""; /* :ic=: insert the following character */
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char *EI = ""; /* :ei=: insert mode end */
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char *DC; /* :dc=: delete a character */
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char *TI = ""; /* :ti=: terminal init */ /* GB */
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char *TE = ""; /* :te=: terminal exit */ /* GB */
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#ifndef NO_CURSORSHAPE
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#if 1
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char *CQ = (char *)0;/* :cQ=: normal cursor */
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char *CX = (char *)1;/* :cX=: cursor used for EX command/entry */
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char *CV = (char *)2;/* :cV=: cursor used for VI command mode */
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char *CI = (char *)3;/* :cI=: cursor used for VI input mode */
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char *CR = (char *)4;/* :cR=: cursor used for VI replace mode */
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#else
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char *CQ = ""; /* :cQ=: normal cursor */
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char *CX = ""; /* :cX=: cursor used for EX command/entry */
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char *CV = ""; /* :cV=: cursor used for VI command mode */
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char *CI = ""; /* :cI=: cursor used for VI input mode */
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char *CR = ""; /* :cR=: cursor used for VI replace mode */
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#endif
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#endif
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char *aend = ""; /* end an attribute -- either UE or ME */
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char ERASEKEY; /* backspace key taken from ioctl structure */
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#ifndef NO_COLOR
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char normalcolor[16];
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char SOcolor[16];
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char SEcolor[16];
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char UScolor[16];
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char UEcolor[16];
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char MDcolor[16];
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char MEcolor[16];
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char AScolor[16];
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char AEcolor[16];
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# ifndef NO_POPUP
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char POPUPcolor[16];
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# endif
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# ifndef NO_VISIBLE
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char VISIBLEcolor[16];
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# endif
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#endif
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#if ANY_UNIX
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static struct termios oldtermio; /* original tty mode */
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static struct termios newtermio; /* cbreak/noecho tty mode */
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#endif
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#if OSK
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static struct sgbuf oldsgttyb; /* orginal tty mode */
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static struct sgbuf newsgttyb; /* noecho tty mode */
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#endif
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static char *capbuf; /* capability string buffer */
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/* Initialize the Curses package. */
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void initscr()
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{
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/* make sure TERM variable is set */
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termtype = getenv("TERM");
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#if VMS
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/* VMS getenv() handles TERM as a environment setting. Foreign
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* terminal support can be implemented by setting the ELVIS_TERM
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* logical or symbol to match a tinytcap entry.
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*/
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if (!strcmp(termtype,"unknown"))
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termtype = getenv("ELVIS_TERM");
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#endif
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#if MSDOS
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/* For MS-DOS, if TERM is unset we can default to "pcbios", or
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* maybe "rainbow".
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*/
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if (!termtype)
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{
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#ifdef RAINBOW
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if (*(unsigned char far*)(0xffff000eL) == 6 /* Rainbow 100a */
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|| *(unsigned char far*)(0xffff000eL) == 148)/* Rainbow 100b */
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{
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termtype = "rainbow";
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}
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else
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#endif
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termtype = "pcbios";
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}
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if (!strcmp(termtype, "pcbios"))
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#else
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if (!termtype)
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#endif
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{
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#if ANY_UNIX
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write(2, "Environment variable TERM must be set\n", (unsigned)38);
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exit(1);
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#endif
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#if OSK
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writeln(2, "Environment variable TERM must be set\n", (unsigned)38);
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exit(1);
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#endif
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#if AMIGA
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termtype = TERMTYPE;
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starttcap(termtype);
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#endif
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#if MSDOS
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starttcap("pcbios");
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#endif
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#if TOS
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termtype = "vt52";
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starttcap(termtype);
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#endif
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#if VMS
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write(2, "UNKNOWN terminal: define ELVIS_TERM\n", (unsigned)36);
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exit(1);
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#endif
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}
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else
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{
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#if MSDOS
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*o_pcbios = 0;
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#endif
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/* start termcap stuff */
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starttcap(termtype);
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}
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/* create stdscr and curscr */
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stdscr = kbuf;
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/* change the terminal mode to cbreak/noecho */
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#if ANY_UNIX
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tcgetattr(2, &oldtermio);
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#endif
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#if OSK
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_gs_opt(0, &oldsgttyb);
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#endif
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#if VMS
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VMS_read_raw = 1; /* cbreak/noecho */
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vms_open_tty();
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#endif
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resume_curses(TRUE);
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}
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/* Shut down the Curses package. */
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void endwin()
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{
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/* change the terminal mode back the way it was */
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suspend_curses();
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#if AMIGA
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amiclosewin();
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#endif
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}
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static int curses_active = FALSE;
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/* Send any required termination strings. Turn off "raw" mode. */
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void suspend_curses()
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{
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#ifndef NO_CURSORSHAPE
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if (has_CQ)
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{
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do_CQ();
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}
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#endif
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if (has_TE) /* GB */
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{
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do_TE();
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}
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if (has_KE)
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{
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do_KE();
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}
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#ifndef NO_COLOR
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quitcolor();
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#endif
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refresh();
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/* change the terminal mode back the way it was */
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#if ANY_UNIX
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tcsetattr(2, TCSADRAIN, &oldtermio);
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#endif
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#if OSK
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_ss_opt(0, &oldsgttyb);
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#endif
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#if AMIGA
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ttyshutdown();
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#endif
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#if MSDOS
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raw_set_stdio(FALSE);
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#endif
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#if VMS
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VMS_read_raw = 0;
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#endif
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curses_active = FALSE;
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}
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/* put the terminal in RAW mode. If "quietly" is FALSE, then ask the user
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* to hit a key, and wait for keystroke before returning.
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*/
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void resume_curses(quietly)
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int quietly;
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{
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if (!curses_active)
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{
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/* change the terminal mode to cbreak/noecho */
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#if ANY_UNIX
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ospeed = cfgetospeed(&oldtermio);
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ERASEKEY = oldtermio.c_cc[VERASE];
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newtermio = oldtermio;
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newtermio.c_iflag &= (IXON|IXOFF|IXANY|ISTRIP|IGNBRK);
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newtermio.c_oflag &= ~OPOST;
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newtermio.c_lflag &= ISIG;
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newtermio.c_cc[VINTR] = ctrl('C'); /* always use ^C for interrupts */
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newtermio.c_cc[VMIN] = 1;
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newtermio.c_cc[VTIME] = 0;
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newtermio.c_cc[VSUSP] = 0;
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tcsetattr(2, TCSADRAIN, &newtermio);
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#endif
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#if OSK
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newsgttyb = oldsgttyb;
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newsgttyb.sg_echo = 0;
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newsgttyb.sg_eofch = 0;
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newsgttyb.sg_kbach = 0;
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newsgttyb.sg_kbich = ctrl('C');
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_ss_opt(0, &newsgttyb);
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ospeed = oldsgttyb.sg_baud;
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ERASEKEY = oldsgttyb.sg_bspch;
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#endif
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#if AMIGA
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/* turn on window resize and RAW */
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ttysetup();
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#endif
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#if MSDOS
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raw_set_stdio(TRUE);
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#endif
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#if VMS
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VMS_read_raw = 1;
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{ int c;
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read(0,&c,0); /* Flush the tty buffer. */
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}
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ERASEKEY = '\177'; /* Accept <DEL> as <^H> for VMS */
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#endif
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if (has_TI) /* GB */
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{
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do_TI();
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}
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if (has_KS)
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{
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do_KS();
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}
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curses_active = TRUE;
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}
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/* If we're supposed to quit quietly, then we're done */
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if (quietly)
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{
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return;
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}
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signal(SIGINT, SIG_IGN);
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move(LINES - 1, 0);
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do_SO();
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#if VMS
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qaddstr("\n[Press <RETURN> to continue]");
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#else
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qaddstr("[Press <RETURN> to continue]");
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#endif
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do_SE();
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refresh();
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ttyread(kbuf, 20, 0); /* in RAW mode, so <20 is very likely */
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if (kbuf[0] == ':')
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{
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mode = MODE_COLON;
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addch('\n');
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refresh();
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}
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else
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{
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mode = MODE_VI;
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redraw(MARK_UNSET, FALSE);
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}
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exwrote = FALSE;
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#if TURBOC || __GNUC__ || _ANSI
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signal(SIGINT, (void(*)()) trapint);
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#else
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signal(SIGINT, trapint);
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#endif
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}
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/* This function fetches an optional string from termcap */
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static void mayhave(T, s)
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char **T; /* where to store the returned pointer */
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char *s; /* name of the capability */
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{
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char *val;
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val = tgetstr(s, &capbuf);
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if (val)
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{
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*T = val;
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}
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}
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/* This function fetches a required string from termcap */
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static void musthave(T, s)
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char **T; /* where to store the returned pointer */
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char *s; /* name of the capability */
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{
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mayhave(T, s);
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if (!*T)
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{
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write(2, "This termcap entry lacks the :", (unsigned)30);
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write(2, s, (unsigned)2);
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write(2, "=: capability\n", (unsigned)14);
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#if OSK
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write(2, "\l", 1);
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#endif
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exit(1);
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}
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}
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/* This function fetches a pair of strings from termcap. If one of them is
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* missing, then the other one is ignored.
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*/
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static void pair(T, U, sT, sU)
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char **T; /* where to store the first pointer */
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char **U; /* where to store the second pointer */
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char *sT; /* name of the first capability */
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char *sU; /* name of the second capability */
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{
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mayhave(T, sT);
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mayhave(U, sU);
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if (!**T || !**U)
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{
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*T = *U = "";
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}
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}
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/* Read everything from termcap */
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static void starttcap(term)
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char *term;
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{
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static char cbmem[800];
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/* allocate memory for capbuf */
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capbuf = cbmem;
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/* get the termcap entry */
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switch (tgetent(kbuf, term))
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{
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case -1:
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write(2, "Can't read /etc/termcap\n", (unsigned)24);
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#if OSK
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write(2, "\l", 1);
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#endif
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exit(2);
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case 0:
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write(2, "Unrecognized TERM type\n", (unsigned)23);
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#if OSK
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write(2, "\l", 1);
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#endif
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exit(3);
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}
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/* get strings */
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musthave(&UP, "up");
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mayhave(&VB, "vb");
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musthave(&CM, "cm");
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pair(&SO, &SE, "so", "se");
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mayhave(&TI, "ti");
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mayhave(&TE, "te");
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if (tgetnum("ug") <= 0)
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{
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pair(&US, &UE, "us", "ue");
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pair(&MD, &ME, "md", "me");
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/* get italics, or have it default to underline */
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pair(&AS, &AE, "as", "ae");
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if (!*AS)
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{
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AS = US;
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AE = UE;
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}
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}
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#ifndef NO_VISIBLE
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MV = SO; /* by default */
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mayhave(&MV, "mv");
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#endif
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mayhave(&AL, "al");
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mayhave(&DL, "dl");
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musthave(&CE, "ce");
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mayhave(&CD, "cd");
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#if OSK
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mayhave(&SR_, "sr");
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#else
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mayhave(&SR, "sr");
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#endif
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pair(&IM, &EI, "im", "ei");
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mayhave(&IC, "ic");
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mayhave(&DC, "dc");
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/* other termcap stuff */
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AM = (tgetflag("am") && !tgetflag("xn"));
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PT = tgetflag("pt");
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#if AMIGA
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amiopenwin(termtype); /* Must run this before ttysetup(); */
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ttysetup(); /* Must run this before getsize(0); */
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#endif
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getsize(0);
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/* Key sequences */
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pair(&KS, &KE, "ks", "ke");
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mayhave(&KU, "ku"); /* up */
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mayhave(&KD, "kd"); /* down */
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mayhave(&KL, "kl"); /* left */
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mayhave(&KR, "kr"); /* right */
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mayhave(&PU, "kP"); /* PgUp */
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mayhave(&PD, "kN"); /* PgDn */
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mayhave(&HM, "kh"); /* Home */
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mayhave(&EN, "kH"); /* End */
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mayhave(&KI, "kI"); /* Insert */
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#ifndef CRUNCH
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if (!PU) mayhave(&PU, "K2"); /* "3x3 pad" names for PgUp, etc. */
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if (!PD) mayhave(&PD, "K5");
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if (!HM) mayhave(&HM, "K1");
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if (!EN) mayhave(&EN, "K4");
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mayhave(&PU, "PU"); /* old XENIX names for PgUp, etc. */
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mayhave(&PD, "PD"); /* (overrides others, if used.) */
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mayhave(&HM, "HM");
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mayhave(&EN, "EN");
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#endif
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#ifndef NO_FKEY
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mayhave(&FKEY[0], "k0"); /* function key codes */
|
|
mayhave(&FKEY[1], "k1");
|
|
mayhave(&FKEY[2], "k2");
|
|
mayhave(&FKEY[3], "k3");
|
|
mayhave(&FKEY[4], "k4");
|
|
mayhave(&FKEY[5], "k5");
|
|
mayhave(&FKEY[6], "k6");
|
|
mayhave(&FKEY[7], "k7");
|
|
mayhave(&FKEY[8], "k8");
|
|
mayhave(&FKEY[9], "k9");
|
|
# ifndef NO_SHIFT_FKEY
|
|
mayhave(&FKEY[10], "s0"); /* shift function key codes */
|
|
mayhave(&FKEY[11], "s1");
|
|
mayhave(&FKEY[12], "s2");
|
|
mayhave(&FKEY[13], "s3");
|
|
mayhave(&FKEY[14], "s4");
|
|
mayhave(&FKEY[15], "s5");
|
|
mayhave(&FKEY[16], "s6");
|
|
mayhave(&FKEY[17], "s7");
|
|
mayhave(&FKEY[18], "s8");
|
|
mayhave(&FKEY[19], "s9");
|
|
# ifndef NO_CTRL_FKEY
|
|
mayhave(&FKEY[20], "c0"); /* control function key codes */
|
|
mayhave(&FKEY[21], "c1");
|
|
mayhave(&FKEY[22], "c2");
|
|
mayhave(&FKEY[23], "c3");
|
|
mayhave(&FKEY[24], "c4");
|
|
mayhave(&FKEY[25], "c5");
|
|
mayhave(&FKEY[26], "c6");
|
|
mayhave(&FKEY[27], "c7");
|
|
mayhave(&FKEY[28], "c8");
|
|
mayhave(&FKEY[29], "c9");
|
|
# ifndef NO_ALT_FKEY
|
|
mayhave(&FKEY[30], "a0"); /* alt function key codes */
|
|
mayhave(&FKEY[31], "a1");
|
|
mayhave(&FKEY[32], "a2");
|
|
mayhave(&FKEY[33], "a3");
|
|
mayhave(&FKEY[34], "a4");
|
|
mayhave(&FKEY[35], "a5");
|
|
mayhave(&FKEY[36], "a6");
|
|
mayhave(&FKEY[37], "a7");
|
|
mayhave(&FKEY[38], "a8");
|
|
mayhave(&FKEY[39], "a9");
|
|
# endif
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef NO_CURSORSHAPE
|
|
/* cursor shapes */
|
|
CQ = tgetstr("cQ", &capbuf);
|
|
if (has_CQ)
|
|
{
|
|
CX = tgetstr("cX", &capbuf);
|
|
if (!CX) CX = CQ;
|
|
CV = tgetstr("cV", &capbuf);
|
|
if (!CV) CV = CQ;
|
|
CI = tgetstr("cI", &capbuf);
|
|
if (!CI) CI = CQ;
|
|
CR = tgetstr("cR", &capbuf);
|
|
if (!CR) CR = CQ;
|
|
}
|
|
# ifndef CRUNCH
|
|
else
|
|
{
|
|
CQ = CV = "";
|
|
pair(&CQ, &CV, "ve", "vs");
|
|
CX = CI = CR = CQ;
|
|
}
|
|
# endif /* !CRUNCH */
|
|
#endif /* !NO_CURSORSHAPE */
|
|
|
|
#ifndef NO_COLOR
|
|
strcpy(SOcolor, SO);
|
|
strcpy(SEcolor, SE);
|
|
strcpy(AScolor, AS);
|
|
strcpy(AEcolor, AE);
|
|
strcpy(MDcolor, MD);
|
|
strcpy(MEcolor, ME);
|
|
strcpy(UScolor, US);
|
|
strcpy(UEcolor, UE);
|
|
# ifndef NO_POPUP
|
|
strcpy(POPUPcolor, SO);
|
|
# endif
|
|
# ifndef NO_VISIBLE
|
|
strcpy(VISIBLEcolor, MV);
|
|
# endif
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
/* This function gets the window size. It uses the TIOCGWINSZ ioctl call if
|
|
* your system has it, or tgetnum("li") and tgetnum("co") if it doesn't.
|
|
* This function is called once during initialization, and thereafter it is
|
|
* called whenever the SIGWINCH signal is sent to this process.
|
|
*/
|
|
void getsize(signo)
|
|
int signo;
|
|
{
|
|
int lines;
|
|
int cols;
|
|
#ifdef TIOCGWINSZ
|
|
struct winsize size;
|
|
#endif
|
|
|
|
#ifdef SIGWINCH
|
|
/* reset the signal vector */
|
|
signal(SIGWINCH, getsize);
|
|
#endif
|
|
|
|
/* get the window size, one way or another. */
|
|
lines = cols = 0;
|
|
#ifdef TIOCGWINSZ
|
|
if (ioctl(2, TIOCGWINSZ, &size) >= 0)
|
|
{
|
|
lines = size.ws_row;
|
|
cols = size.ws_col;
|
|
}
|
|
#endif
|
|
#if AMIGA
|
|
/* Amiga gets window size by asking the console.device */
|
|
if (!strcmp(TERMTYPE, termtype))
|
|
{
|
|
auto long len;
|
|
auto char buf[30];
|
|
|
|
Write(Output(), "\2330 q", 4); /* Ask the console.device */
|
|
len = Read(Input(), buf, 29);
|
|
buf[len] = '\000';
|
|
sscanf(&buf[5], "%d;%d", &lines, &cols);
|
|
}
|
|
#endif
|
|
if ((lines == 0 || cols == 0) && signo == 0)
|
|
{
|
|
LINES = tgetnum("li");
|
|
COLS = tgetnum("co");
|
|
}
|
|
#if MSDOS
|
|
# ifdef RAINBOW
|
|
if (!strcmp(termtype, "rainbow"))
|
|
{
|
|
/* Determine whether Rainbow is in 80-column or 132-column mode */
|
|
cols = *(unsigned char far *)0xee000f57L;
|
|
}
|
|
else
|
|
# endif
|
|
{
|
|
lines = v_rows();
|
|
cols = v_cols();
|
|
}
|
|
#endif
|
|
if (lines >= 2)
|
|
{
|
|
LINES = lines;
|
|
}
|
|
|
|
if (cols >= 30)
|
|
{
|
|
COLS = cols;
|
|
}
|
|
|
|
/* Make sure we got values that we can live with */
|
|
if (LINES < 2 || COLS < 30)
|
|
{
|
|
write(2, "Screen too small\n", (unsigned)17);
|
|
#if OSK
|
|
write(2, "\l", 1);
|
|
#endif
|
|
endwin();
|
|
exit(2);
|
|
}
|
|
|
|
#if AMIGA
|
|
if (*o_lines != LINES || *o_columns != COLS)
|
|
{
|
|
*o_lines = LINES;
|
|
*o_columns = COLS;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
/* This is a function version of addch() -- it is used by tputs() */
|
|
int faddch(ch)
|
|
int ch;
|
|
{
|
|
addch(ch);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* This function quickly adds a string to the output queue. It does *NOT*
|
|
* convert \n into <CR><LF>.
|
|
*/
|
|
void qaddstr(str)
|
|
char *str;
|
|
{
|
|
REG char *s_, *d_;
|
|
|
|
#if MSDOS
|
|
if (o_pcbios[0])
|
|
{
|
|
while (*str)
|
|
qaddch(*str++);
|
|
return;
|
|
}
|
|
#endif
|
|
for (s_=(str), d_=stdscr; *d_++ = *s_++; )
|
|
{
|
|
}
|
|
stdscr = d_ - 1;
|
|
}
|
|
|
|
/* Output the ESC sequence needed to go into any video mode, if supported */
|
|
void attrset(a)
|
|
int a;
|
|
{
|
|
do_aend();
|
|
if (a == A_BOLD)
|
|
{
|
|
do_MD();
|
|
aend = ME;
|
|
}
|
|
else if (a == A_UNDERLINE)
|
|
{
|
|
do_US();
|
|
aend = UE;
|
|
}
|
|
else if (a == A_ALTCHARSET)
|
|
{
|
|
do_AS();
|
|
aend = AE;
|
|
}
|
|
else
|
|
{
|
|
aend = "";
|
|
}
|
|
}
|
|
|
|
|
|
/* Insert a single character into the display */
|
|
void insch(ch)
|
|
int ch;
|
|
{
|
|
if (has_IM)
|
|
do_IM();
|
|
do_IC();
|
|
qaddch(ch);
|
|
if (has_EI)
|
|
do_EI();
|
|
}
|
|
|
|
void wrefresh()
|
|
{
|
|
if (stdscr != kbuf)
|
|
{
|
|
VOIDBIOS(;,ttywrite(kbuf, (unsigned)(stdscr - kbuf)));
|
|
stdscr = kbuf;
|
|
}
|
|
}
|
|
|
|
void wqrefresh()
|
|
{
|
|
if (stdscr - kbuf > 2000)
|
|
{
|
|
VOIDBIOS(stdscr = kbuf,
|
|
{
|
|
ttywrite(kbuf, (unsigned)(stdscr - kbuf));
|
|
stdscr = kbuf;
|
|
});
|
|
}
|
|
}
|
|
|
|
#ifndef NO_COLOR
|
|
/* This function is called during termination. It resets color modes */
|
|
int ansiquit()
|
|
{
|
|
/* if ANSI color terminal, then reset the colors */
|
|
if (!strcmp(UP, "\033[A"))
|
|
{
|
|
tputs("\033[37;40m\033[m", 1, faddch);
|
|
clrtoeol();
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* This sets the color strings that work for ANSI terminals. If the TERMCAP
|
|
* doesn't look like an ANSI terminal, then it returns FALSE. If the colors
|
|
* aren't understood, it also returns FALSE. If all goes well, it returns TRUE
|
|
*/
|
|
int ansicolor(cmode, attrbyte)
|
|
int cmode; /* mode to set, e.g. A_NORMAL */
|
|
int attrbyte; /* IBM PC attribute byte */
|
|
{
|
|
char temp[16]; /* hold the new mode string */
|
|
|
|
/* if not ANSI-ish, then fail */
|
|
if (strcmp(UP, "\033[A") && strcmp(UP, "\033OA"))
|
|
{
|
|
msg("Don't know how to set colors for this terminal");
|
|
return 0;
|
|
}
|
|
|
|
/* construct the color string */
|
|
sprintf(temp, "\033[m\033[3%c;4%c%s%sm",
|
|
"04261537"[attrbyte & 0x07],
|
|
"04261537"[(attrbyte >> 4) & 0x07],
|
|
(attrbyte & 0x08) ? ";1" : "",
|
|
(attrbyte & 0x80) ? ";5" : "");
|
|
|
|
/* stick it in the right place */
|
|
switch (cmode)
|
|
{
|
|
case A_NORMAL:
|
|
if (!strcmp(MEcolor, normalcolor))
|
|
strcpy(MEcolor, temp);
|
|
if (!strcmp(UEcolor, normalcolor))
|
|
strcpy(UEcolor, temp);
|
|
if (!strcmp(AEcolor, normalcolor))
|
|
strcpy(AEcolor, temp);
|
|
if (!strcmp(SEcolor, normalcolor))
|
|
strcpy(SEcolor, temp);
|
|
|
|
strcpy(normalcolor, temp);
|
|
tputs(normalcolor, 1, faddch);
|
|
break;
|
|
|
|
case A_BOLD:
|
|
strcpy(MDcolor, temp);
|
|
strcpy(MEcolor, normalcolor);
|
|
break;
|
|
|
|
case A_UNDERLINE:
|
|
strcpy(UScolor, temp);
|
|
strcpy(UEcolor, normalcolor);
|
|
break;
|
|
|
|
case A_ALTCHARSET:
|
|
strcpy(AScolor, temp);
|
|
strcpy(AEcolor, normalcolor);
|
|
break;
|
|
|
|
case A_STANDOUT:
|
|
strcpy(SOcolor, temp);
|
|
strcpy(SEcolor, normalcolor);
|
|
break;
|
|
|
|
#ifndef NO_POPUP
|
|
case A_POPUP:
|
|
strcpy(POPUPcolor, temp);
|
|
break;
|
|
#endif
|
|
|
|
#ifndef NO_VISIBLE
|
|
case A_VISIBLE:
|
|
strcpy(VISIBLEcolor, temp);
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* This function outputs the ESC sequence needed to switch the screen back
|
|
* to "normal" mode. On color terminals which haven't had their color set
|
|
* yet, this is one of the termcap strings; for color terminals that really
|
|
* have had colors defined, we just the "normal color" escape sequence.
|
|
*/
|
|
endcolor()
|
|
{
|
|
if (aend == ME)
|
|
tputs(MEcolor, 1, faddch);
|
|
else if (aend == UE)
|
|
tputs(UEcolor, 1, faddch);
|
|
else if (aend == AE)
|
|
tputs(AEcolor, 1, faddch);
|
|
else if (aend == SE)
|
|
tputs(SEcolor, 1, faddch);
|
|
aend = "";
|
|
return 0;
|
|
}
|
|
|
|
|
|
#endif /* !NO_COLOR */
|