From 0e3426bbcf2ff61d06d580fc9362fde79953a281 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 8 May 1996 02:07:47 +0000 Subject: Tue May 7 19:00:01 1996 Roland McGrath * string/argz-extract.c: Remove const from decl. * string/argz.h: Here too. * Makeconfig (version.mk): Fix regexp in sed cmd. Depend on $(..)Makeconfig. * GMP code updated from gmp-2.0 release. * stdlib/Makefile (mpn-routines): Removed add_1, added inlines. * sysdeps/generic/add_1.c: File removed. * stdlib/strtod.c: mp_limb is now mp_limb_t. * stdlib/fpioconst.c, stdlib/fpioconst.h: Likewise. * stdio-common/_itoa.c: Likewise. * stdio-common/printf_fp.c: Likewise. Don't include ansidecl.h. * sysdeps/mach/hurd/getcwd.c: Use io_identity instead of io_stat. * shlib-versions: New file. * Makerules (soversions.mk): New target, include file generated from shlib-versions. Moved shared library rules before installation rules. Rewrote shared library installation rules for versioned libraries. * math/Makefile (libm.so-version): Variable removed. * sysdeps/mach/hurd/i386/exc2signal.c: Use struct hurd_signal_detail. * hurd/report-wait.c (_S_msg_describe_ports): New function. * configure.in: Add AC_PROG_LN_S check. * config.make.in (LN_S): New variable. Sun May 5 03:10:44 1996 Ulrich Drepper * misc/efgcvt_r.c (ecvt_r): Work aroung gcc bug. gcc does not know about weak aliases now and optimizes necessary `if' statement away. * posix/unistd.h: Add swapoff prototype. * sysdeps/generic/confname.h: Add even more POSIX.4 symbols. * sysdeps/posix/fpathconf.c (__fpathconf): Get information for _PC_PATH_MAX from fstatfs function if available. * sysdeps/posix/sysconf.c: Add code to handle _SC_AIO_LISTIO_MAX, _SC_AIO_MAX, _SC_AIO_PRIO_DELTA_MAX, _SC_DELAYTIMER_MAX, _SC_MQ_OPEN_MAX, _SC_MQ_PRIO_MAX, _SC_RTSIG_MAX, _SC_SEM_NSEMS_MAX, _SC_SEM_VALUE_MAX, _SC_SIGQUEUE_MAX, and _SC_TIMER_MAX. * sysdeps/unix/sysv/sysv4/sysconf.c: Ditto. * sysdeps/stub/swapoff.c: New file. Stub version for swapoff function. * sysdeps/unix/syscalls.list: Add swapoff. * sysdeps/unix/sysv/linux/Dist: Add sys/acct.h. * sysdeps/unix/sysv/linux/Makefile [$(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 * 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 * 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 * 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. --- stdio/linewrap.c | 183 ++++++++++++++++++++++++++++++++++++----------------- stdio/linewrap.h | 189 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ stdio/stdio.h | 16 ----- 3 files changed, 316 insertions(+), 72 deletions(-) create mode 100644 stdio/linewrap.h (limited to 'stdio') diff --git a/stdio/linewrap.c b/stdio/linewrap.c index e821cc3..7f6576f 100644 --- a/stdio/linewrap.c +++ b/stdio/linewrap.c @@ -22,42 +22,27 @@ Cambridge, MA 02139, USA. */ #include #include -/* We keep this data for each line-wrapping stream. */ - -struct data - { - const size_t *lmargin, *rmargin; /* Left and right margins. */ - const size_t *wrapmargin; /* Margin to wrap to, or null 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; - }; +#include + +void __line_wrap_output (FILE *, int); /* Install our hooks into a stream. */ - static inline void -wrap_stream (FILE *stream, struct data *d) +wrap_stream (FILE *stream, struct line_wrap_data *d) { - static void lwoutput (FILE *, int); static __io_close_fn lwclose; static __io_fileno_fn lwfileno; stream->__cookie = d; - stream->__room_funcs.__output = &lwoutput; + stream->__room_funcs.__output = &__line_wrap_output; stream->__io_funcs.__close = &lwclose; stream->__io_funcs.__fileno = &lwfileno; stream->__io_funcs.__seek = NULL; /* Cannot seek. */ } /* Restore a stream to its original state. */ - static inline void -unwrap_stream (FILE *stream, struct data *d) +unwrap_stream (FILE *stream, struct line_wrap_data *d) { stream->__cookie = d->cookie; stream->__room_funcs.__output = d->output; @@ -72,41 +57,40 @@ unwrap_stream (FILE *stream, struct data *d) static int lwclose (void *cookie) { - struct data *d = cookie; + struct line_wrap_data *d = cookie; return (*d->close) (d->cookie); } static int lwfileno (void *cookie) { - struct data *d = cookie; + struct line_wrap_data *d = cookie; return (*d->fileno) (d->cookie); } /* This function is called when STREAM must be flushed. C is EOF or a character to be appended to the buffer contents. */ - -static void -lwoutput (FILE *stream, int c) +void +__line_wrap_output (FILE *stream, int c) { char *buf, *nl; size_t len; /* Extract our data and restore the stream's original cookie and output function so writes we do really go out. */ - struct data *d = stream->__cookie; + struct line_wrap_data *d = stream->__cookie; unwrap_stream (stream, d); /* Scan the buffer for newlines. */ - for (buf = stream->__buffer; - (buf < stream->__bufp || (c != EOF && c != '\n')) && !stream->__error) + buf = stream->__buffer; + while ((buf < stream->__bufp || (c != EOF && c != '\n')) && !stream->__error) { size_t r; - if (d->point == 0 && d->lmargin && *d->lmargin != 0) + if (d->point == 0 && d->lmargin != 0) { /* We are starting a new line. Print spaces to the left margin. */ - const size_t pad = *d->lmargin; + const size_t pad = d->lmargin; if (stream->__bufp + pad < stream->__put_limit) { /* We can fit in them in the buffer by moving the @@ -141,8 +125,7 @@ lwoutput (FILE *stream, int c) { /* The buffer ends in a partial line. */ - if (!d->rmargin || - d->point + len + (c != EOF && c != '\n') <= d->rmargin) + if (d->point + len + (c != EOF && c != '\n') <= d->rmargin) { /* The remaining buffer text is a partial line and fits within the maximum line width. Advance point for the @@ -155,7 +138,7 @@ lwoutput (FILE *stream, int c) the end of the buffer. */ nl = stream->__bufp; } - else if (!d->rmargin || d->point + (nl - buf) <= d->rmargin) + else if (d->point + (nl - buf) <= d->rmargin) { /* The buffer contains a full line that fits within the maximum line width. Reset point and scan the next line. */ @@ -165,9 +148,9 @@ lwoutput (FILE *stream, int c) } /* This line is too long. */ - r = *d->rmargin; + r = d->rmargin; - if (! d->wrapmargin) + if (d->wmargin < 0) { /* Truncate the line by overwriting the excess with the newline and anything after it in the buffer. */ @@ -242,7 +225,7 @@ lwoutput (FILE *stream, int c) /* Temporarily reset bufp to include just the first line. */ stream->__bufp = nl; - if (nextline - (nl + 1) < d->wrap) + if (nextline - (nl + 1) < d->wmargin) /* The margin needs more blanks than we removed. Output the first line so we can use the space. */ (*d->output) (stream, '\n'); @@ -255,7 +238,7 @@ lwoutput (FILE *stream, int c) d->point = 0; /* Add blanks up to the wrap margin column. */ - for (i = 0; i < d->wrap; ++i) + for (i = 0; i < d->wmargin; ++i) *stream->__bufp++ = ' '; /* Copy the tail of the original buffer into the current buffer @@ -284,19 +267,16 @@ lwoutput (FILE *stream, int c) wrap_stream (stream, d); } -/* Modify STREAM so that it prefixes lines written on it with *LMARGIN - spaces and limits them to *RMARGIN columns total. If WRAP is not null, - words that extend past *RMARGIN are wrapped by replacing the whitespace - before them with a newline and *WRAP spaces. Otherwise, chars beyond - *RMARGIN are simply dropped until a newline. Returns STREAM after - modifying it, or NULL if there was an error. The pointers passed are - stored in the stream and so must remain valid until `line_unwrap_stream' - is called; the values pointed to can be changed between stdio calls. */ - +/* 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 *wrap) +line_wrap_stream (FILE *stream, size_t lmargin, size_t rmargin, size_t wmargin) { - struct data *d = malloc (sizeof *d); + struct line_wrap_data *d = malloc (sizeof *d); if (!d) return NULL; @@ -321,25 +301,116 @@ line_wrap_stream (FILE *stream, size_t *lmargin, size_t *rmargin, size_t *wrap) to work if the stream is switched to full or no buffering. */ stream->__linebuf = 1; -#define ref(arg) d->arg = arg - ref (lmargin); - ref (rmargin); - ref (wrap); -#undef ref + d->lmargin = lmargin; + d->rmargin = rmargin; + d->wmargin = wmargin; return stream; } /* Remove the hooks placed in STREAM by `line_wrap_stream'. */ - void line_unwrap_stream (FILE *stream) { - struct data *d = stream->__cookie; + struct line_wrap_data *d = stream->__cookie; unwrap_stream (stream, d); free (d); } +/* Functions on wrapped streams. */ + +/* Returns true if STREAM is line wrapped. */ +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. */ +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. */ +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. */ +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. */ +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. */ +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. */ +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. */ +size_t +line_wrap_point (FILE *stream) +{ + if (! line_wrapped (stream)) + return -1; + return ((struct line_wrap_data *)stream->__cookie)->point; +} + #ifdef TEST int main (int argc, char **argv) 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 +#include +#include + +#include + +#include /* 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__ */ diff --git a/stdio/stdio.h b/stdio/stdio.h index efaf2b9..38bfc14 100644 --- a/stdio/stdio.h +++ b/stdio/stdio.h @@ -353,22 +353,6 @@ extern FILE *fmemopen __P ((__ptr_t __s, size_t __len, __const char *__modes)); necessary. *BUFLOC and *SIZELOC are updated with the buffer's location and the number of characters written on fflush or fclose. */ extern FILE *open_memstream __P ((char **__bufloc, size_t *__sizeloc)); - - -/* Modify STREAM so that it prefixes lines written on it with *LMARGIN - spaces and limits them to *RMARGIN columns total. If WRAP is not null, - words that extend past *RMARGIN are wrapped by replacing the whitespace - before them with a newline and *WRAP spaces. Otherwise, chars beyond - *RMARGIN are simply dropped until a newline. Returns STREAM after - modifying it, or NULL if there was an error. The pointers passed are - stored in the stream and so must remain valid until `line_unwrap_stream' - is called; the values pointed to can be changed between stdio calls. */ -extern FILE *line_wrap_stream __P ((FILE *__stream, - size_t *__lmargin, size_t *__rmargin, - size_t *__wrap)); - -/* Remove the hooks placed in STREAM by `line_wrap_stream'. */ -extern void line_unwrap_stream __P ((FILE *__stream)); #endif -- cgit v1.1