diff options
Diffstat (limited to 'usr.bin/vi/ex/ex_display.c')
| -rw-r--r-- | usr.bin/vi/ex/ex_display.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/usr.bin/vi/ex/ex_display.c b/usr.bin/vi/ex/ex_display.c new file mode 100644 index 000000000000..2f4f65bdca62 --- /dev/null +++ b/usr.bin/vi/ex/ex_display.c @@ -0,0 +1,155 @@ +/*- + * Copyright (c) 1992, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static char sccsid[] = "@(#)ex_display.c 8.15 (Berkeley) 3/8/94"; +#endif /* not lint */ + +#include <sys/types.h> +#include <queue.h> +#include <sys/time.h> + +#include <bitstring.h> +#include <ctype.h> +#include <limits.h> +#include <signal.h> +#include <stdio.h> +#include <string.h> +#include <termios.h> + +#include <db.h> +#include <regex.h> + +#include "vi.h" +#include "tag.h" +#include "excmd.h" + +static int bdisplay __P((SCR *, EXF *)); +static void db __P((SCR *, CB *, char *)); + +/* + * ex_display -- :display b[uffers] | s[creens] | t[ags] + * + * Display buffers, tags or screens. + */ +int +ex_display(sp, ep, cmdp) + SCR *sp; + EXF *ep; + EXCMDARG *cmdp; +{ + switch (cmdp->argv[0]->bp[0]) { + case 'b': + return (bdisplay(sp, ep)); + case 's': + return (ex_sdisplay(sp, ep)); + case 't': + return (ex_tagdisplay(sp, ep)); + } + msgq(sp, M_ERR, + "Unknown display argument %s, use b[uffers], s[creens], or t[ags].", + cmdp->argv[0]); + return (1); +} + +/* + * bdisplay -- + * + * Display buffers. + */ +static int +bdisplay(sp, ep) + SCR *sp; + EXF *ep; +{ + CB *cbp; + + if (sp->gp->cutq.lh_first == NULL && sp->gp->dcbp == NULL) { + (void)ex_printf(EXCOOKIE, "No cut buffers to display."); + return (0); + } + + /* Buffers can be infinitely long, make it interruptible. */ + F_SET(sp, S_INTERRUPTIBLE); + + /* Display regular cut buffers. */ + for (cbp = sp->gp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) { + if (isdigit(cbp->name)) + continue; + if (cbp->textq.cqh_first != (void *)&cbp->textq) + db(sp, cbp, NULL); + if (F_ISSET(sp, S_INTERRUPTED)) + return (0); + } + /* Display numbered buffers. */ + for (cbp = sp->gp->cutq.lh_first; cbp != NULL; cbp = cbp->q.le_next) { + if (!isdigit(cbp->name)) + continue; + if (cbp->textq.cqh_first != (void *)&cbp->textq) + db(sp, cbp, NULL); + if (F_ISSET(sp, S_INTERRUPTED)) + return (0); + } + /* Display default buffer. */ + if ((cbp = sp->gp->dcbp) != NULL) + db(sp, cbp, "default buffer"); + return (0); +} + +/* + * db -- + * Display a buffer. + */ +static void +db(sp, cbp, name) + SCR *sp; + CB *cbp; + char *name; +{ + TEXT *tp; + size_t len; + char *p; + + (void)ex_printf(EXCOOKIE, "********** %s%s\n", + name == NULL ? charname(sp, cbp->name) : name, + F_ISSET(cbp, CB_LMODE) ? " (line mode)" : ""); + for (tp = cbp->textq.cqh_first; + tp != (void *)&cbp->textq; tp = tp->q.cqe_next) { + for (len = tp->len, p = tp->lb; len--;) { + (void)ex_printf(EXCOOKIE, "%s", charname(sp, *p++)); + if (F_ISSET(sp, S_INTERRUPTED)) + return; + } + (void)ex_printf(EXCOOKIE, "\n"); + } +} |