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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 0000000..7ba337f
--- /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__ */