Annotation of src/usr.bin/mg/main.c, Revision 1.70
1.70 ! naddy 1: /* $OpenBSD: main.c,v 1.69 2012/08/31 18:06:42 lum Exp $ */
1.40 kjell 2:
3: /* This file is in the public domain. */
1.6 niklas 4:
1.1 deraadt 5: /*
1.5 millert 6: * Mainline.
1.1 deraadt 7: */
1.5 millert 8:
1.38 db 9: #include "def.h"
10: #include "kbd.h"
11: #include "funmap.h"
12: #include "macro.h"
1.1 deraadt 13:
1.24 vincent 14: #include <err.h>
1.70 ! naddy 15: #include <locale.h>
1.24 vincent 16:
1.5 millert 17: int thisflag; /* flags, this command */
18: int lastflag; /* flags, last command */
19: int curgoal; /* goal column */
1.36 deraadt 20: int startrow; /* row to start */
1.55 deraadt 21: struct buffer *curbp; /* current buffer */
1.53 kjell 22: struct buffer *bheadp; /* BUFFER list head */
23: struct mgwin *curwp; /* current window */
24: struct mgwin *wheadp; /* MGWIN listhead */
1.5 millert 25: char pat[NPAT]; /* pattern */
1.1 deraadt 26:
1.66 lum 27: static void edinit(struct buffer *);
1.53 kjell 28: static __dead void usage(void);
29:
30: extern char *__progname;
1.62 lum 31: extern void closetags(void);
1.53 kjell 32:
33: static __dead void
34: usage()
35: {
1.57 sobrado 36: fprintf(stderr, "usage: %s [-n] [-f mode] [+number] [file ...]\n",
1.53 kjell 37: __progname);
38: exit(1);
39: }
1.1 deraadt 40:
1.2 deraadt 41: int
1.19 vincent 42: main(int argc, char **argv)
1.1 deraadt 43: {
1.66 lum 44: char *cp, *init_fcn_name = NULL;
45: PF init_fcn = NULL;
46: int o, i, nfiles;
47: int nobackups = 0;
48: struct buffer *bp = NULL;
1.24 vincent 49:
1.56 cloder 50: while ((o = getopt(argc, argv, "nf:")) != -1)
1.24 vincent 51: switch (o) {
1.35 henning 52: case 'n':
53: nobackups = 1;
54: break;
1.24 vincent 55: case 'f':
56: if (init_fcn_name != NULL)
57: errx(1, "cannot specify more than one "
58: "initial function");
59: init_fcn_name = optarg;
60: break;
61: default:
1.53 kjell 62: usage();
1.24 vincent 63: }
64: argc -= optind;
65: argv += optind;
1.70 ! naddy 66:
! 67: setlocale(LC_CTYPE, "");
1.1 deraadt 68:
1.12 art 69: maps_init(); /* Keymaps and modes. */
1.11 art 70: funmap_init(); /* Functions. */
1.19 vincent 71:
1.13 art 72: /*
73: * This is where we initialize standalone extensions that should
74: * be loaded dynamically sometime in the future.
75: */
76: {
77: extern void grep_init(void);
1.14 art 78: extern void theo_init(void);
1.58 kjell 79: extern void cmode_init(void);
1.42 kjell 80: extern void dired_init(void);
1.13 art 81:
1.42 kjell 82: dired_init();
1.13 art 83: grep_init();
1.14 art 84: theo_init();
1.58 kjell 85: cmode_init();
1.13 art 86: }
1.5 millert 87:
1.24 vincent 88: if (init_fcn_name &&
89: (init_fcn = name_function(init_fcn_name)) == NULL)
90: errx(1, "Unknown function `%s'", init_fcn_name);
91:
92: vtinit(); /* Virtual terminal. */
93: dirinit(); /* Get current directory. */
1.66 lum 94: edinit(bp); /* Buffers, windows. */
1.24 vincent 95: ttykeymapinit(); /* Symbols, bindings. */
96:
1.4 millert 97: /*
98: * doing update() before reading files causes the error messages from
99: * the file I/O show up on the screen. (and also an extra display of
100: * the mode line if there are files specified on the command line.)
1.1 deraadt 101: */
102: update();
1.5 millert 103:
1.65 lum 104: /* user startup file. */
105: if ((cp = startupfile(NULL)) != NULL)
106: (void)load(cp);
107:
108: /*
109: * Now ensure any default buffer modes from the startup file are
110: * given to any files opened when parsing the startup file.
111: * Note *scratch* will also be updated.
112: */
113: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
114: bp->b_flag = defb_flag;
115: for (i = 0; i <= defb_nmodes; i++) {
116: bp->b_modes[i] = defb_modes[i];
117: }
118: }
1.59 kjell 119:
120: /* Force FFOTHARG=1 so that this mode is enabled, not simply toggled */
121: if (init_fcn)
122: init_fcn(FFOTHARG, 1);
123:
1.35 henning 124: if (nobackups)
125: makebkfile(FFARG, 0);
1.27 vincent 126:
127: for (nfiles = 0, i = 0; i < argc; i++) {
128: if (argv[i][0] == '+' && strlen(argv[i]) >= 2) {
1.43 deraadt 129: long long lval;
1.30 pvalchev 130: const char *errstr;
1.23 deraadt 131:
1.32 vincent 132: lval = strtonum(&argv[i][1], INT_MIN, INT_MAX, &errstr);
1.33 vincent 133: if (argv[i][1] == '\0' || errstr != NULL)
1.23 deraadt 134: goto notnum;
1.30 pvalchev 135: startrow = lval;
1.24 vincent 136: } else {
1.23 deraadt 137: notnum:
1.52 jason 138: cp = adjustname(argv[i], FALSE);
1.24 vincent 139: if (cp != NULL) {
1.38 db 140: if (nfiles == 1)
1.27 vincent 141: splitwind(0, 1);
1.38 db 142:
1.39 beck 143: if ((curbp = findbuffer(cp)) == NULL) {
144: vttidy();
145: errx(1, "Can't find current buffer!");
146: }
1.24 vincent 147: (void)showbuffer(curbp, curwp, 0);
1.44 deraadt 148: if (readin(cp) != TRUE)
1.34 jfb 149: killbuffer(curbp);
1.38 db 150: else {
1.59 kjell 151: /* Ensure enabled, not just toggled */
1.34 jfb 152: if (init_fcn_name)
1.59 kjell 153: init_fcn(FFOTHARG, 1);
1.34 jfb 154: nfiles++;
155: }
1.24 vincent 156: }
1.22 vincent 157: }
1.1 deraadt 158: }
1.29 vincent 159:
160: if (nfiles > 2)
161: listbuffers(0, 1);
1.5 millert 162:
163: /* fake last flags */
164: thisflag = 0;
1.4 millert 165: for (;;) {
1.50 kjell 166: if (epresf == KCLEAR)
1.4 millert 167: eerase();
1.50 kjell 168: if (epresf == TRUE)
169: epresf = KCLEAR;
1.17 deraadt 170: if (winch_flag) {
1.49 otto 171: do_redraw(0, 0, TRUE);
1.17 deraadt 172: winch_flag = 0;
173: }
1.4 millert 174: update();
175: lastflag = thisflag;
176: thisflag = 0;
1.5 millert 177:
1.4 millert 178: switch (doin()) {
179: case TRUE:
180: break;
1.1 deraadt 181: case ABORT:
1.5 millert 182: ewprintf("Quit");
1.48 kjell 183: /* FALLTHRU */
1.1 deraadt 184: case FALSE:
185: default:
1.4 millert 186: ttbeep();
187: macrodef = FALSE;
188: }
1.1 deraadt 189: }
190: }
191:
192: /*
1.66 lum 193: * Initialize default buffer and window. Default buffer is called *scratch*.
1.1 deraadt 194: */
1.7 art 195: static void
1.66 lum 196: edinit(struct buffer *bp)
1.4 millert 197: {
1.45 deraadt 198: struct mgwin *wp;
1.1 deraadt 199:
200: bheadp = NULL;
1.66 lum 201: bp = bfind("*scratch*", TRUE); /* Text buffer. */
1.63 lum 202: if (bp == NULL)
203: panic("edinit");
204:
1.26 vincent 205: wp = new_window(bp);
1.21 vincent 206: if (wp == NULL)
1.66 lum 207: panic("edinit: Out of memory");
1.63 lum 208:
1.66 lum 209: curbp = bp; /* Current buffer. */
1.1 deraadt 210: wheadp = wp;
1.4 millert 211: curwp = wp;
1.5 millert 212: wp->w_wndp = NULL; /* Initialize window. */
1.54 kjell 213: wp->w_linep = wp->w_dotp = bp->b_headp;
1.38 db 214: wp->w_ntrows = nrow - 2; /* 2 = mode, echo. */
1.61 kjell 215: wp->w_rflag = WFMODE | WFFULL; /* Full. */
1.1 deraadt 216: }
217:
218: /*
1.5 millert 219: * Quit command. If an argument, always quit. Otherwise confirm if a buffer
220: * has been changed and not written out. Normally bound to "C-X C-C".
1.1 deraadt 221: */
1.4 millert 222: /* ARGSUSED */
1.5 millert 223: int
1.20 vincent 224: quit(int f, int n)
1.1 deraadt 225: {
1.5 millert 226: int s;
1.1 deraadt 227:
1.4 millert 228: if ((s = anycb(FALSE)) == ABORT)
1.38 db 229: return (ABORT);
1.69 lum 230: if (s == FIOERR || s == UERROR)
1.68 lum 231: return (FALSE);
1.1 deraadt 232: if (s == FALSE
1.41 kjell 233: || eyesno("Modified buffers exist; really exit") == TRUE) {
1.1 deraadt 234: vttidy();
1.62 lum 235: closetags();
1.1 deraadt 236: exit(GOOD);
237: }
1.38 db 238: return (TRUE);
1.1 deraadt 239: }
240:
241: /*
1.10 mickey 242: * User abort. Should be called by any input routine that sees a C-g to abort
1.5 millert 243: * whatever C-g is aborting these days. Currently does nothing.
1.1 deraadt 244: */
1.4 millert 245: /* ARGSUSED */
246: int
1.20 vincent 247: ctrlg(int f, int n)
1.1 deraadt 248: {
1.24 vincent 249: return (ABORT);
1.1 deraadt 250: }
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