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Length: 4419 (0x1143) Types: TextFile Names: »ansi.c«
└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki └─⟦this⟧ »EUUGD11/euug-87hel/sec1/uEmacs/ansi.c«
/* * The routines in this file provide support for ANSI style terminals * over a serial line. The serial I/O services are provided by routines in * "termio.c". It compiles into nothing if not an ANSI device. */ #define termdef 1 /* don't define "term" external */ #include <stdio.h> #include "estruct.h" #include "edef.h" #if ANSI #if AMIGA #define NROW 23 /* Screen size. */ #define NCOL 77 /* Edit if you want to. */ #else #define NROW 25 /* Screen size. */ #define NCOL 80 /* Edit if you want to. */ #endif #define NPAUSE 100 /* # times thru update to pause */ #define MARGIN 8 /* size of minimim margin and */ #define SCRSIZ 64 /* scroll size for extended lines */ #define BEL 0x07 /* BEL character. */ #define ESC 0x1B /* ESC character. */ extern int ttopen(); /* Forward references. */ extern int ttgetc(); extern int ttputc(); extern int ttflush(); extern int ttclose(); extern int ansimove(); extern int ansieeol(); extern int ansieeop(); extern int ansibeep(); extern int ansiopen(); extern int ansirev(); extern int ansiclose(); extern int ansikopen(); extern int ansikclose(); extern int ansicres(); #if COLOR extern int ansifcol(); extern int ansibcol(); int cfcolor = -1; /* current forground color */ int cbcolor = -1; /* current background color */ #endif /* * Standard terminal interface dispatch table. Most of the fields point into * "termio" code. */ TERM term = { NROW-1, NROW-1, NCOL, NCOL, MARGIN, SCRSIZ, NPAUSE, ansiopen, ansiclose, ansikopen, ansikclose, ttgetc, ttputc, ttflush, ansimove, ansieeol, ansieeop, ansibeep, ansirev, ansicres #if COLOR , ansifcol, ansibcol #endif }; #if COLOR ansifcol(color) /* set the current output color */ int color; /* color to set */ { if (color == cfcolor) return; ttputc(ESC); ttputc('['); ansiparm(color+30); ttputc('m'); cfcolor = color; } ansibcol(color) /* set the current background color */ int color; /* color to set */ { if (color == cbcolor) return; ttputc(ESC); ttputc('['); ansiparm(color+40); ttputc('m'); cbcolor = color; } #endif ansimove(row, col) { ttputc(ESC); ttputc('['); ansiparm(row+1); ttputc(';'); ansiparm(col+1); ttputc('H'); } ansieeol() { ttputc(ESC); ttputc('['); ttputc('K'); } ansieeop() { #if COLOR ansifcol(gfcolor); ansibcol(gbcolor); #endif ttputc(ESC); ttputc('['); ttputc('J'); } ansirev(state) /* change reverse video state */ int state; /* TRUE = reverse, FALSE = normal */ { #if COLOR int ftmp, btmp; /* temporaries for colors */ #endif ttputc(ESC); ttputc('['); ttputc(state ? '7': '0'); ttputc('m'); #if COLOR if (state == FALSE) { ftmp = cfcolor; btmp = cbcolor; cfcolor = -1; cbcolor = -1; ansifcol(ftmp); ansibcol(btmp); } #endif } ansicres() /* change screen resolution */ { return(TRUE); } ansibeep() { ttputc(BEL); ttflush(); } ansiparm(n) register int n; { register int q,r; q = n/10; if (q != 0) { r = q/10; if (r != 0) { ttputc((r%10)+'0'); } ttputc((q%10) + '0'); } ttputc((n%10) + '0'); } ansiopen() { #if V7 | USG | BSD register char *cp; char *getenv(); if ((cp = getenv("TERM")) == NULL) { puts("Shell variable TERM not defined!"); exit(1); } if (strcmp(cp, "vt100") != 0) { puts("Terminal type not 'vt100'!"); exit(1); } #endif strcpy(sres, "NORMAL"); revexist = TRUE; ttopen(); } ansiclose() { #if COLOR ansifcol(7); ansibcol(0); #endif ttclose(); } ansikopen() /* open the keyboard (a noop here) */ { } ansikclose() /* close the keyboard (a noop here) */ { } #if FLABEL fnclabel(f, n) /* label a function key */ int f,n; /* default flag, numeric argument [unused] */ { /* on machines with no function keys...don't bother */ return(TRUE); } #endif #else ansihello() { } #endif