2 * Copyright (c) 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1993, 1994, 1995, 1996
5 * Keith Bostic. All rights reserved.
7 * See the LICENSE file for redistribution information.
13 static const char sccsid[] = "$Id: ex_util.c,v 10.32 2001/06/25 15:19:21 skimo Exp $";
16 #include <sys/types.h>
17 #include <sys/queue.h>
20 #include <bitstring.h>
28 #include "../common/common.h"
32 * Create an EX command structure.
34 * PUBLIC: void ex_cinit(SCR *, EXCMD *, int, int, recno_t, recno_t, int);
37 ex_cinit(SCR *sp, EXCMD *cmdp, int cmd_id, int naddr, recno_t lno1, recno_t lno2, int force)
39 memset(cmdp, 0, sizeof(EXCMD));
40 cmdp->cmd = &cmds[cmd_id];
41 cmdp->addrcnt = naddr;
42 cmdp->addr1.lno = lno1;
43 cmdp->addr2.lno = lno2;
44 cmdp->addr1.cno = cmdp->addr2.cno = 1;
46 cmdp->iflags |= E_C_FORCE;
47 (void)argv_init(sp, cmdp);
52 * Return a line from the file.
54 * PUBLIC: int ex_getline(SCR *, FILE *, size_t *);
57 ex_getline(SCR *sp, FILE *fp, size_t *lenp)
65 for (errno = 0, off = 0, p = exp->ibp;;) {
66 if (off >= exp->ibp_len) {
67 BINC_RETC(sp, exp->ibp, exp->ibp_len, off + 1);
70 if ((ch = getc(fp)) == EOF && !feof(fp)) {
78 if (ch == EOF || ch == '\n') {
79 if (ch == EOF && !off)
92 * Check for more files to edit.
94 * PUBLIC: int ex_ncheck(SCR *, int);
97 ex_ncheck(SCR *sp, int force)
103 * Historic practice: quit! or two quit's done in succession
104 * (where ZZ counts as a quit) didn't check for other files.
106 if (!force && sp->ccnt != sp->q_ccnt + 1 &&
107 sp->cargv != NULL && sp->cargv[1] != NULL) {
108 sp->q_ccnt = sp->ccnt;
110 for (ap = sp->cargv + 1; *ap != NULL; ++ap);
112 "167|%d more files to edit", (int)(ap - sp->cargv) - 1);
121 * Init the screen for ex.
123 * PUBLIC: int ex_init(SCR *);
132 if (gp->scr_screen(sp, SC_EX))
134 (void)gp->scr_attr(sp, SA_ALTERNATE, 0);
136 sp->rows = O_VAL(sp, O_LINES);
137 sp->cols = O_VAL(sp, O_COLUMNS);
140 F_SET(sp, SC_EX | SC_SCR_EX);
146 * Display a few common ex and vi error messages.
148 * PUBLIC: void ex_wemsg(SCR *, CHAR_T *, exm_t);
151 ex_wemsg(SCR* sp, CHAR_T *p, exm_t which)
156 if (p) INT2CHAR(sp, p, STRLEN(p), np, nlen);
158 ex_emsg(sp, np, which);
163 * Display a few common ex and vi error messages.
165 * PUBLIC: void ex_emsg(SCR *, char *, exm_t);
168 ex_emsg(SCR *sp, char *p, exm_t which)
172 msgq(sp, M_ERR, "168|Buffer %s is empty", p);
175 msgq_str(sp, M_ERR, p,
176 "144|%s: expanded into too many file names");
180 "283|The %s command requires the ex terminal interface", p);
184 "272|That form of %s requires the ex terminal interface",
190 "274|Command failed, no file read in yet.");
193 "173|The %s command requires that a file have already been read in", p);
196 msgq(sp, M_ERR, "171|No previous buffer to execute");
199 msgq(sp, M_ERR, "172|No previous regular expression");
202 msgq(sp, M_ERR, "230|This screen may not be suspended");
206 "290|The %s command is not supported when the secure edit option is set", p);
210 "284|That form of %s is not supported when the secure edit option is set", p);
213 msgq(sp, M_ERR, "174|Usage: %s", p);