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[src/trunk]: src Add the POSIX filter() function to libcurses.
details: https://anonhg.NetBSD.org/src/rev/d234a6497da1
branches: trunk
changeset: 820130:d234a6497da1
user: roy <roy%NetBSD.org@localhost>
date: Fri Dec 30 22:38:38 2016 +0000
description:
Add the POSIX filter() function to libcurses.
diffstat:
distrib/sets/lists/comp/mi | 5 ++++-
lib/libcurses/Makefile | 4 ++--
lib/libcurses/curses.h | 3 ++-
lib/libcurses/curses_private.h | 3 ++-
lib/libcurses/curses_screen.3 | 24 ++++++++++++++++++++++--
lib/libcurses/screen.c | 18 ++++++++++++++++--
lib/libcurses/setterm.c | 25 ++++++++++++++++++++++---
7 files changed, 70 insertions(+), 12 deletions(-)
diffs (233 lines):
diff -r d7b946c3f33d -r d234a6497da1 distrib/sets/lists/comp/mi
--- a/distrib/sets/lists/comp/mi Fri Dec 30 21:08:23 2016 +0000
+++ b/distrib/sets/lists/comp/mi Fri Dec 30 22:38:38 2016 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.2083 2016/12/22 16:32:31 maya Exp $
+# $NetBSD: mi,v 1.2084 2016/12/30 22:38:38 roy Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
./etc/mtree/set.comp comp-sys-root
@@ -6380,6 +6380,7 @@
./usr/share/man/cat3/field_type.0 comp-c-catman .cat
./usr/share/man/cat3/field_userptr.0 comp-c-catman .cat
./usr/share/man/cat3/fileno.0 comp-c-catman .cat
+./usr/share/man/cat3/filter.0 comp-c-catman .cat
./usr/share/man/cat3/finite.0 comp-c-catman .cat
./usr/share/man/cat3/finitef.0 comp-c-catman .cat
./usr/share/man/cat3/flags_to_string.0 comp-c-catman .cat
@@ -13720,6 +13721,7 @@
./usr/share/man/html3/field_type.html comp-c-htmlman html
./usr/share/man/html3/field_userptr.html comp-c-htmlman html
./usr/share/man/html3/fileno.html comp-c-htmlman html
+./usr/share/man/html3/filter.html comp-c-htmlman html
./usr/share/man/html3/finite.html comp-c-htmlman html
./usr/share/man/html3/finitef.html comp-c-htmlman html
./usr/share/man/html3/flags_to_string.html comp-c-htmlman html
@@ -20973,6 +20975,7 @@
./usr/share/man/man3/field_type.3 comp-c-man .man
./usr/share/man/man3/field_userptr.3 comp-c-man .man
./usr/share/man/man3/fileno.3 comp-c-man .man
+./usr/share/man/man3/filter.3 comp-c-man .man
./usr/share/man/man3/finite.3 comp-c-man .man
./usr/share/man/man3/finitef.3 comp-c-man .man
./usr/share/man/man3/flags_to_string.3 comp-c-man .man
diff -r d7b946c3f33d -r d234a6497da1 lib/libcurses/Makefile
--- a/lib/libcurses/Makefile Fri Dec 30 21:08:23 2016 +0000
+++ b/lib/libcurses/Makefile Fri Dec 30 22:38:38 2016 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.71 2014/07/05 22:31:32 dholland Exp $
+# $NetBSD: Makefile,v 1.72 2016/12/30 22:38:38 roy Exp $
# @(#)Makefile 8.2 (Berkeley) 1/2/94
.include <bsd.own.mk>
@@ -75,7 +75,7 @@
curses_refresh.3 doupdate.3 curses_window.3 dupwin.3 \
curses_tty.3 echo.3 curses_echochar.3 echochar.3 \
curses_screen.3 endwin.3 curses_clear.3 erase.3 \
- curses_tty.3 erasechar.3 \
+ curses_tty.3 erasechar.3 curses_screen.3 filter.3 \
curses_tty.3 flash.3 curses_tty.3 flushinp.3 \
curses_refresh.3 flushok.3 \
curses_termcap.3 fullname.3 curses_attributes.3 getattrs.3 \
diff -r d7b946c3f33d -r d234a6497da1 lib/libcurses/curses.h
--- a/lib/libcurses/curses.h Fri Dec 30 21:08:23 2016 +0000
+++ b/lib/libcurses/curses.h Fri Dec 30 22:38:38 2016 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: curses.h,v 1.107 2015/06/08 12:38:57 joerg Exp $ */
+/* $NetBSD: curses.h,v 1.108 2016/12/30 22:38:38 roy Exp $ */
/*
* Copyright (c) 1981, 1993, 1994
@@ -638,6 +638,7 @@
int echo(void);
int endwin(void);
char erasechar(void);
+void filter(void);
int flash(void);
int flushinp(void);
int flushok(WINDOW *, bool);
diff -r d7b946c3f33d -r d234a6497da1 lib/libcurses/curses_private.h
--- a/lib/libcurses/curses_private.h Fri Dec 30 21:08:23 2016 +0000
+++ b/lib/libcurses/curses_private.h Fri Dec 30 22:38:38 2016 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: curses_private.h,v 1.51 2016/10/23 21:20:56 christos Exp $ */
+/* $NetBSD: curses_private.h,v 1.52 2016/12/30 22:38:38 roy Exp $ */
/*-
* Copyright (c) 1998-2000 Brett Lymn
@@ -252,6 +252,7 @@
int resized;
wchar_t *unget_list;
int unget_len, unget_pos;
+ int filtered;
#ifdef HAVE_WCHAR
#define MB_LEN_MAX 8
#define MAX_CBUF_SIZE MB_LEN_MAX
diff -r d7b946c3f33d -r d234a6497da1 lib/libcurses/curses_screen.3
--- a/lib/libcurses/curses_screen.3 Fri Dec 30 21:08:23 2016 +0000
+++ b/lib/libcurses/curses_screen.3 Fri Dec 30 22:38:38 2016 +0000
@@ -1,4 +1,4 @@
-.\" $NetBSD: curses_screen.3,v 1.15 2012/04/21 12:27:28 roy Exp $
+.\" $NetBSD: curses_screen.3,v 1.16 2016/12/30 22:38:38 roy Exp $
.\"
.\" Copyright (c) 2002
.\" Brett Lymn (blymn%NetBSD.org@localhost, brett_lymn%yahoo.com.au@localhost)
@@ -30,10 +30,11 @@
.\" SUCH DAMAGE.
.\"
.\"
-.Dd April 5, 2012
+.Dd December 30, 2016
.Dt CURSES_SCREEN 3
.Os
.Sh NAME
+.Nm filter ,
.Nm curses_screen ,
.Nm newterm ,
.Nm set_term ,
@@ -48,6 +49,8 @@
.Lb libcurses
.Sh SYNOPSIS
.In curses.h
+.Ft void
+.Fn filter "void"
.Ft SCREEN *
.Fn newterm "char *type" "FILE *outfd" "FILE *infd"
.Ft SCREEN *
@@ -170,6 +173,23 @@
argument must be a valid name or alias in the
.Xr terminfo 5
database for this function to succeed.
+.Pp
+The
+.Fn filter
+function changes the way the terminal is initialised.
+A subsequent call to
+.Fn initscr
+or
+.Fn newterm
+performs the following additonal actions:
+.Bl -bullet -compact
+.It
+Disable use of clear, cud, cud1, cup, cuu, cuu1 and vpa.
+.It
+Set the value of the home string to the value of the cr string.
+.It
+Set lines equal to 1.
+.El
.Sh RETURN VALUES
Functions returning pointers will return
.Dv NULL
diff -r d7b946c3f33d -r d234a6497da1 lib/libcurses/screen.c
--- a/lib/libcurses/screen.c Fri Dec 30 21:08:23 2016 +0000
+++ b/lib/libcurses/screen.c Fri Dec 30 22:38:38 2016 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: screen.c,v 1.24 2015/11/26 01:05:08 christos Exp $ */
+/* $NetBSD: screen.c,v 1.25 2016/12/30 22:38:38 roy Exp $ */
/*
* Copyright (c) 1981, 1993, 1994
@@ -34,7 +34,7 @@
#if 0
static char sccsid[] = "@(#)screen.c 8.2 (blymn) 11/27/2001";
#else
-__RCSID("$NetBSD: screen.c,v 1.24 2015/11/26 01:05:08 christos Exp $");
+__RCSID("$NetBSD: screen.c,v 1.25 2016/12/30 22:38:38 roy Exp $");
#endif
#endif /* not lint */
@@ -43,6 +43,18 @@
#include "curses.h"
#include "curses_private.h"
+static int filtered;
+
+/*
+ * filter has to be called before either initscr or newterm.
+ */
+void
+filter(void)
+{
+
+ filtered = TRUE;
+}
+
/*
* set_term --
* Change the term to the given screen.
@@ -128,6 +140,8 @@
new_screen->outfd = outfd;
new_screen->echoit = new_screen->nl = 1;
new_screen->pfast = new_screen->rawmode = new_screen->noqch = 0;
+ new_screen->filtered = filtered;
+ filtered = FALSE; /* filter() must preceed each newterm() */
new_screen->nca = A_NORMAL;
new_screen->color_type = COLOR_NONE;
new_screen->COLOR_PAIRS = 0;
diff -r d7b946c3f33d -r d234a6497da1 lib/libcurses/setterm.c
--- a/lib/libcurses/setterm.c Fri Dec 30 21:08:23 2016 +0000
+++ b/lib/libcurses/setterm.c Fri Dec 30 22:38:38 2016 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: setterm.c,v 1.54 2016/01/09 19:05:13 jdc Exp $ */
+/* $NetBSD: setterm.c,v 1.55 2016/12/30 22:38:38 roy Exp $ */
/*
* Copyright (c) 1981, 1993, 1994
@@ -34,7 +34,7 @@
#if 0
static char sccsid[] = "@(#)setterm.c 8.8 (Berkeley) 10/25/94";
#else
-__RCSID("$NetBSD: setterm.c,v 1.54 2016/01/09 19:05:13 jdc Exp $");
+__RCSID("$NetBSD: setterm.c,v 1.55 2016/12/30 22:38:38 roy Exp $");
#endif
#endif /* not lint */
@@ -99,8 +99,27 @@
}
}
+ if (screen->filtered) {
+ /* Disable use of clear, cud, cud1, cup, cuu1 and vpa. */
+ screen->term->strs[TICODE_clear] = NULL;
+ screen->term->strs[TICODE_cud] = NULL;
+ screen->term->strs[TICODE_cud1] = NULL;
+ screen->term->strs[TICODE_cup] = NULL;
+ screen->term->strs[TICODE_cuu] = NULL;
+ screen->term->strs[TICODE_cuu1] = NULL;
+ screen->term->strs[TICODE_vpa] = NULL;
+ /* Set the value of the home string to the value of
+ * the cr string. */
+ screen->term->strs[TICODE_home] = screen->term->strs[TICODE_cr];
+ /* Set lines equal to 1. */
+ screen->LINES = 1;
+ }
+#ifdef DEBUG
+ __CTRACE(__CTRACE_INIT, "setterm: filtered %d", screen->filtered);
+#endif
+
/* POSIX 1003.2 requires that the environment override. */
- if ((p = getenv("LINES")) != NULL)
+ if (!screen->filtered && (p = getenv("LINES")) != NULL)
screen->LINES = (int) strtol(p, NULL, 0);
if ((p = getenv("COLUMNS")) != NULL)
screen->COLS = (int) strtol(p, NULL, 0);
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