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authorRoland McGrath <roland@gnu.org>1996-05-08 02:07:47 +0000
committerRoland McGrath <roland@gnu.org>1996-05-08 02:07:47 +0000
commit0e3426bbcf2ff61d06d580fc9362fde79953a281 (patch)
tree6bc37583e3ea48a41eb273fbb112613b51cf64e6 /stdio/linewrap.h
parentb928942eaa0401de9189a2709188f584425f5ca6 (diff)
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Tue May 7 19:00:01 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
	* string/argz-extract.c: Remove const from decl.
	* string/argz.h: Here too.

	* Makeconfig (version.mk): Fix regexp in sed cmd.
	Depend on $(..)Makeconfig.

	* GMP code updated from gmp-2.0 release.
	* stdlib/Makefile (mpn-routines): Removed add_1, added inlines.
	* sysdeps/generic/add_1.c: File removed.
	* stdlib/strtod.c: mp_limb is now mp_limb_t.
	* stdlib/fpioconst.c, stdlib/fpioconst.h: Likewise.
	* stdio-common/_itoa.c: Likewise.
	* stdio-common/printf_fp.c: Likewise.
	Don't include ansidecl.h.

	* sysdeps/mach/hurd/getcwd.c: Use io_identity instead of io_stat.

	* shlib-versions: New file.
	* Makerules (soversions.mk): New target, include file generated from
	shlib-versions.  Moved shared library rules before installation rules.
	Rewrote shared library installation rules for versioned libraries.
	* math/Makefile (libm.so-version): Variable removed.

	* sysdeps/mach/hurd/i386/exc2signal.c: Use struct hurd_signal_detail.

	* hurd/report-wait.c (_S_msg_describe_ports): New function.

	* configure.in: Add AC_PROG_LN_S check.
	* config.make.in (LN_S): New variable.

Sun May  5 03:10:44 1996  Ulrich Drepper  <drepper@cygnus.com>

	* misc/efgcvt_r.c (ecvt_r): Work aroung gcc bug.  gcc does
	not know about weak aliases now and optimizes necessary `if'
	statement away.

	* posix/unistd.h: Add swapoff prototype.

	* sysdeps/generic/confname.h: Add even more POSIX.4 symbols.

	* sysdeps/posix/fpathconf.c (__fpathconf): Get information
	for _PC_PATH_MAX from fstatfs function if available.

	* sysdeps/posix/sysconf.c: Add code to handle _SC_AIO_LISTIO_MAX,
	_SC_AIO_MAX, _SC_AIO_PRIO_DELTA_MAX, _SC_DELAYTIMER_MAX,
	_SC_MQ_OPEN_MAX, _SC_MQ_PRIO_MAX, _SC_RTSIG_MAX,
	_SC_SEM_NSEMS_MAX, _SC_SEM_VALUE_MAX, _SC_SIGQUEUE_MAX, and
	_SC_TIMER_MAX.
	* sysdeps/unix/sysv/sysv4/sysconf.c: Ditto.

	* sysdeps/stub/swapoff.c: New file.  Stub version for swapoff
	function.

	* sysdeps/unix/syscalls.list:  Add swapoff.

	* sysdeps/unix/sysv/linux/Dist: Add sys/acct.h.

	* sysdeps/unix/sysv/linux/Makefile [$(subdir) == misc]
	(sysdep_routines): Add mount, umount, llseek, setfsgid, setfsuid,
	sysinfo, and uselib.
	(headers): Add sys/sysinfo.h.

	* sysdeps/unix/sysv/linux/gethostid.c: Prevent warning.

	* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == misc]
	(sysdep_routines): Add ioperm, iopl, and vm86.
	(headers): Add sys/perm.h and sys/vm86.h.

	* sysdeps/unix/sysv/linux/i386/sys/perm.h: New file.  Contains
	prototypes for iopl and ioperm.

	* sysdeps/unix/sysv/linux/i386/sys/vm86.h:  New file.  Contains
	prototype for vm86.

	* sysdeps/unix/sysv/linux/i386/syscalls.list: New file.  Add
	vm86 system call.

	* sysdeps/unix/sysv/linux/sys/acct.h: New file.  Contains
	prototypes for acct function.

	* sysdeps/unix/sysv/linux/sys/socket.h: Provide real header
	file with prototypes.

	* sysdeps/unix/sysv/linux/sys/sysinfo.h: New file.  Contains
	prototype for sysinfo function.

	* sysdeps/unix/sysv/linux/syscalls.list: Add flock, ioperm, iopl,
	llseek, setfsgid, setfsuid, sysinfo, and uselib.

	* sysdeps/unix/sysv/linux/sysconf.c: Instead of duplicating
	posix/sysconf.c now only handle cases different to that
	implementation.

Tue May  7 15:08:19 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* stdio/linewrap.c (__line_wrap_output): Renamed from lwoutput
	(all references changed).  Now exported.

	* stdio/linewrap.c (struct data): Type deleted (moved to linewrap.h).
	(wrap_stream, unwrap_stream, lwclose, lwfileno, lwoutput,
	line_wrap_stream, line_unwrap_stream): Use struct line_wrap_data
	instead of struct data.
	(lwoutput, line_wrap_stream, line_unwrap_stream): Rename various
	occurences of `wrap' and `wrapmargin' to `wmargin'.
	(line_wrapped, line_wrap_lmargin, line_wrap_set_lmargin,
	line_wrap_rmargin, line_wrap_set_rmargin, line_wrap_wmargin,
	line_wrap_set_wmargin, line_wrap_point): New functions.
	* stdio/linewrap.h: New file.
	* stdio/Makefile (headers): Add linewrap.h.

Tue May  7 14:19:12 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* sysdeps/unix/sysv/linux/i386/Makefile: File removed.

	* stdio/stdio.h: Remove line_wrap_stream, line_unwap_stream decls.

	* sysdeps/unix/sysv/linux/schedbits.h: New file.

Tue May  7 13:47:02 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* stdio/linewrap.c (struct data): Make margin fields not-pointers.
	(lwoutput): Adjust uses acordingly.

	* sysdeps/mach/hurd/fdatasync.c: New file.
	* sysdeps/mach/hurd/fsync.c: Pass new flag to file_sync.

	* sysdeps/mach/hurd/xmknod.c: Pass new flag to dir_link.
	* sysdeps/mach/hurd/symlink.c: Likewise.
	* sysdeps/mach/hurd/link.c: Likewise.
	* sysdeps/mach/hurd/bind.c: Likewise.
	* hurd/hurdsig.c (write_corefile): Likewise.

	* hurd/hurdsig.c (write_corefile): Pass cttyid port to crash server.

	* sysdeps/mach/hurd/fpathconf.c: RPC takes int pointer, not long int.

	* sysdeps/mach/hurd/_exit.c (_hurd_exit): Pass sigcode arg to
	proc_mark_exit.
	* sysdeps/mach/hurd/dl-sysdep.c (_exit): Likewise.

	* sysdeps/mach/hurd/wait4.c: Pass sigcode arg to proc_wait.

	* sysdeps/mach/hurd/rename.c: Pass new flag to dir_rename.

	* hurd/hurdfault.c (_hurdsig_fault_catch_exception_raise): Use struct
	hurd_signal_detail.
	* hurd/catch-exc.c (_S_catch_exception_raise): Likewise.
	* hurd/hurd-raise.c (_hurd_raise_signal): Likewise.
	* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
	Likewise.
	* sysdeps/mach/hurd/setitimer.c (restart_itimer): Likewise.

	* hurd/hurd/signal.h: Fix _hurd_exception2signal prototype.

	* hurd/hurdsig.c (write_corefile): Take const struct
	hurd_signal_detail * arg.  Pass all details to crash_dump_task.
	(_hurd_internal_post_signal): Pass DETAIL to write_corefile.
	(_hurd_internal_post_signal: suspend): Pass code and error to
	proc_mark_stop.

	* hurd/hurdprio.c (_hurd_priority_which_map): Pass flags arg to
	proc_getprocinfo by reference.
Diffstat (limited to 'stdio/linewrap.h')
-rw-r--r--stdio/linewrap.h189
1 files changed, 189 insertions, 0 deletions
diff --git a/stdio/linewrap.h b/stdio/linewrap.h
new file mode 100644
index 0000000000..7ba337fad2
--- /dev/null
+++ b/stdio/linewrap.h
@@ -0,0 +1,189 @@
+/* Word-wrapping and line-truncating streams.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef __LINEWRAP_H__
+#define __LINEWRAP_H__
+
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+
+#include <features.h>
+
+#include <string.h>		/* Need size_t.  */
+
+__BEGIN_DECLS
+
+/* We keep this data for each line-wrapping stream.  */
+struct line_wrap_data
+  {
+    size_t lmargin, rmargin;	/* Left and right margins.  */
+    size_t wmargin;		/* Margin to wrap to, or -1 to truncate.  */
+    size_t point;		/* Current column of last chars flushed.  */
+
+    /* Original cookie and hooks from the stream.  */
+    void *cookie;
+    void (*output) (FILE *, int);
+    __io_close_fn *close;
+    __io_fileno_fn *fileno;
+    __io_seek_fn *seek;
+  };
+
+/* Modify STREAM so that it prefixes lines written on it with LMARGIN spaces
+   and limits them to RMARGIN columns total.  If WMARGIN >= 0, words that
+   extend past RMARGIN are wrapped by replacing the whitespace before them
+   with a newline and WMARGIN spaces.  Otherwise, chars beyond RMARGIN are
+   simply dropped until a newline.  Returns STREAM after modifying it, or
+   NULL if there was an error.  */
+FILE *line_wrap_stream (FILE *stream,
+			size_t lmargin, size_t rmargin, size_t wmargin);
+
+/* Remove the hooks placed in STREAM by `line_wrap_stream'.  */
+void line_unwrap_stream (FILE *stream);
+
+/* Returns true if STREAM is line wrapped.  */
+extern inline int line_wrapped (FILE *stream); 
+
+/* If STREAM is not line-wrapped return -1, else return its left margin.  */
+extern size_t line_wrap_lmargin (FILE *stream); 
+
+/* If STREAM is not line-wrapped return -1, else set its left margin to
+   LMARGIN and return the old value.  */
+extern size_t line_wrap_set_lmargin (FILE *stream, size_t lmargin); 
+
+/* If STREAM is not line-wrapped return -1, else return its left margin.  */
+extern size_t line_wrap_rmargin (FILE *stream); 
+
+/* If STREAM is not line-wrapped return -1, else set its right margin to
+   RMARGIN and return the old value.  */
+extern size_t line_wrap_set_rmargin (FILE *stream, size_t rmargin); 
+
+/* If STREAM is not line-wrapped return -1, else return its wrap margin.  */
+extern size_t line_wrap_wmargin (FILE *stream); 
+
+/* If STREAM is not line-wrapped return -1, else set its left margin to
+   WMARGIN and return the old value.  */
+extern size_t line_wrap_set_wmargin (FILE *stream, size_t wmargin); 
+
+/* If STREAM is not line-wrapped return -1, else return the column number of
+   the current output point.  */
+extern size_t line_wrap_point (FILE *stream); 
+
+
+#ifdef	__OPTIMIZE__
+
+extern void __line_wrap_output (FILE *, int); /* private */
+
+/* Returns true if STREAM is line wrapped.  */
+extern inline int
+line_wrapped (FILE *stream)
+{
+  return (stream->__room_funcs.__output == &__line_wrap_output);
+}
+
+/* If STREAM is not line-wrapped return -1, else return its left margin.  */
+extern inline size_t
+line_wrap_lmargin (FILE *stream)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  return ((struct line_wrap_data *)stream->__cookie)->lmargin;
+}
+
+/* If STREAM is not line-wrapped return -1, else set its left margin to
+   LMARGIN and return the old value.  */
+extern inline size_t
+line_wrap_set_lmargin (FILE *stream, size_t lmargin)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  else
+    {
+      struct line_wrap_data *d = stream->__cookie;
+      size_t old = d->lmargin;
+      d->lmargin = lmargin;
+      return old;
+    }
+}
+
+/* If STREAM is not line-wrapped return -1, else return its left margin.  */
+extern inline size_t
+line_wrap_rmargin (FILE *stream)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  return ((struct line_wrap_data *)stream->__cookie)->rmargin;
+}
+
+/* If STREAM is not line-wrapped return -1, else set its right margin to
+   RMARGIN and return the old value.  */
+extern inline size_t
+line_wrap_set_rmargin (FILE *stream, size_t rmargin)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  else
+    {
+      struct line_wrap_data *d = stream->__cookie;
+      size_t old = d->rmargin;
+      d->rmargin = rmargin;
+      return old;
+    }
+}
+
+/* If STREAM is not line-wrapped return -1, else return its wrap margin.  */
+extern inline size_t
+line_wrap_wmargin (FILE *stream)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  return ((struct line_wrap_data *)stream->__cookie)->wmargin;
+}
+
+/* If STREAM is not line-wrapped return -1, else set its left margin to
+   WMARGIN and return the old value.  */
+extern inline size_t
+line_wrap_set_wmargin (FILE *stream, size_t wmargin)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  else
+    {
+      struct line_wrap_data *d = stream->__cookie;
+      size_t old = d->wmargin;
+      d->wmargin = wmargin;
+      return old;
+    }
+}
+
+/* If STREAM is not line-wrapped return -1, else return the column number of
+   the current output point.  */
+extern inline size_t
+line_wrap_point (FILE *stream)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  return ((struct line_wrap_data *)stream->__cookie)->point;
+}
+
+#endif /* Optimizing.  */
+
+__END_DECLS
+
+#endif /* __LINEWRAP_H__ */