Annotation of src/usr.bin/mg/main.c, Revision 1.11
1.11 ! art 1: /* $OpenBSD: main.c,v 1.10 2001/05/24 03:05:24 mickey Exp $ */
1.6 niklas 2:
1.1 deraadt 3: /*
1.5 millert 4: * Mainline.
1.1 deraadt 5: */
1.5 millert 6:
1.1 deraadt 7: #include "def.h"
1.11 ! art 8: #include "funmap.h"
1.5 millert 9:
1.1 deraadt 10: #ifndef NO_MACRO
11: #include "macro.h"
1.5 millert 12: #endif /* NO_MACRO */
1.1 deraadt 13:
1.5 millert 14: int thisflag; /* flags, this command */
15: int lastflag; /* flags, last command */
16: int curgoal; /* goal column */
17: BUFFER *curbp; /* current buffer */
18: BUFFER *bheadp; /* BUFFER listhead */
19: MGWIN *curwp; /* current window */
1.8 art 20: MGWIN *wheadp; /* MGWIN listhead */
1.5 millert 21: char pat[NPAT]; /* pattern */
1.1 deraadt 22:
1.7 art 23: static void edinit __P((void));
1.1 deraadt 24:
1.2 deraadt 25: int
1.1 deraadt 26: main(argc, argv)
1.10 mickey 27: int argc;
28: char **argv;
1.1 deraadt 29: {
1.5 millert 30: char *cp;
1.1 deraadt 31:
32: #ifdef SYSINIT
1.5 millert 33: SYSINIT; /* System dependent. */
34: #endif /* SYSINIT */
35: vtinit(); /* Virtual terminal. */
1.1 deraadt 36: #ifndef NO_DIR
1.5 millert 37: dirinit(); /* Get current directory. */
38: #endif /* !NO_DIR */
39: edinit(); /* Buffers, windows. */
1.11 ! art 40: funmap_init(); /* Functions. */
1.5 millert 41: ttykeymapinit(); /* Symbols, bindings. */
42:
1.4 millert 43: /*
44: * doing update() before reading files causes the error messages from
45: * the file I/O show up on the screen. (and also an extra display of
46: * the mode line if there are files specified on the command line.)
1.1 deraadt 47: */
48: update();
1.5 millert 49:
50: #ifndef NO_STARTUP
51: /* user startup file */
1.8 art 52: if ((cp = startupfile(NULL)) != NULL)
1.7 art 53: (void)load(cp);
1.5 millert 54: #endif /* !NO_STARTUP */
1.1 deraadt 55: while (--argc > 0) {
56: cp = adjustname(*++argv);
57: curbp = findbuffer(cp);
1.7 art 58: (void)showbuffer(curbp, curwp, 0);
59: (void)readin(cp);
1.1 deraadt 60: }
1.5 millert 61:
62: /* fake last flags */
63: thisflag = 0;
1.4 millert 64: for (;;) {
1.1 deraadt 65: #ifndef NO_DPROMPT
1.4 millert 66: if (epresf == KPROMPT)
67: eerase();
1.5 millert 68: #endif /* !NO_DPROMPT */
1.4 millert 69: update();
70: lastflag = thisflag;
71: thisflag = 0;
1.5 millert 72:
1.4 millert 73: switch (doin()) {
74: case TRUE:
75: break;
1.1 deraadt 76: case ABORT:
1.5 millert 77: ewprintf("Quit");
78: /* and fall through */
1.1 deraadt 79: case FALSE:
80: default:
1.4 millert 81: ttbeep();
1.1 deraadt 82: #ifndef NO_MACRO
1.4 millert 83: macrodef = FALSE;
1.5 millert 84: #endif /* !NO_MACRO */
1.4 millert 85: }
1.1 deraadt 86: }
87: }
88:
89: /*
90: * Initialize default buffer and window.
91: */
1.7 art 92: static void
1.4 millert 93: edinit()
94: {
1.5 millert 95: BUFFER *bp;
96: MGWIN *wp;
1.1 deraadt 97:
98: bheadp = NULL;
1.5 millert 99: bp = bfind("*scratch*", TRUE); /* Text buffer. */
100: wp = (MGWIN *)malloc(sizeof(MGWIN)); /* Initial window. */
1.4 millert 101: if (bp == NULL || wp == NULL)
102: panic("edinit");
1.5 millert 103: curbp = bp; /* Current ones. */
1.1 deraadt 104: wheadp = wp;
1.4 millert 105: curwp = wp;
1.5 millert 106: wp->w_wndp = NULL; /* Initialize window. */
1.4 millert 107: wp->w_bufp = bp;
1.5 millert 108: bp->b_nwnd = 1; /* Displayed. */
1.1 deraadt 109: wp->w_linep = wp->w_dotp = bp->b_linep;
1.4 millert 110: wp->w_doto = 0;
1.1 deraadt 111: wp->w_markp = NULL;
112: wp->w_marko = 0;
113: wp->w_toprow = 0;
1.5 millert 114: wp->w_ntrows = nrow - 2; /* 2 = mode, echo. */
1.1 deraadt 115: wp->w_force = 0;
1.5 millert 116: wp->w_flag = WFMODE | WFHARD; /* Full. */
1.1 deraadt 117: }
118:
119: /*
1.5 millert 120: * Quit command. If an argument, always quit. Otherwise confirm if a buffer
121: * has been changed and not written out. Normally bound to "C-X C-C".
1.1 deraadt 122: */
1.4 millert 123: /* ARGSUSED */
1.5 millert 124: int
1.1 deraadt 125: quit(f, n)
1.5 millert 126: int f, n;
1.1 deraadt 127: {
1.5 millert 128: int s;
1.1 deraadt 129:
1.4 millert 130: if ((s = anycb(FALSE)) == ABORT)
131: return ABORT;
1.1 deraadt 132: if (s == FALSE
1.4 millert 133: || eyesno("Some modified buffers exist, really exit") == TRUE) {
1.1 deraadt 134: vttidy();
1.5 millert 135: #ifdef SYSCLEANUP
1.4 millert 136: SYSCLEANUP;
1.5 millert 137: #endif /* SYSCLEANUP */
1.1 deraadt 138: exit(GOOD);
139: }
140: return TRUE;
141: }
142:
143: /*
1.10 mickey 144: * User abort. Should be called by any input routine that sees a C-g to abort
1.5 millert 145: * whatever C-g is aborting these days. Currently does nothing.
1.1 deraadt 146: */
1.4 millert 147: /* ARGSUSED */
148: int
1.1 deraadt 149: ctrlg(f, n)
1.4 millert 150: int f, n;
1.1 deraadt 151: {
152: return ABORT;
153: }
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