pmodules/bash
0
0
Fork 0
mirror of https://https.git.savannah.gnu.org/git/bash.git synced 2026-08-06 02:02:42 +02:00
Code Issues Packages Projects Releases Wiki Activity

commit bash-20100728 snapshot

Browse Source
This commit is contained in:
Chet Ramey
2011-12-12 22:03:58 -05:00
parent 9ec5ed6640
commit 5f8cde236a
79 changed files with 37373 additions and 3813 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/glob/Makefile.in
+6 -1
View File
@@ -71,7 +71,7 @@ CSOURCES = $(srcdir)/glob.c $(srcdir)/strmatch.c $(srcdir)/smatch.c \
# The header files for this library.
HSOURCES = $(srcdir)/strmatch.h
OBJECTS = glob.o strmatch.o smatch.o xmbsrtowcs.o
OBJECTS = glob.o strmatch.o smatch.o xmbsrtowcs.o gmisc.o
# The texinfo files which document this library.
DOCSOURCE = doc/glob.texi
@@ -147,12 +147,17 @@ glob.o: strmatch.h glob.h
glob.o: $(BASHINCDIR)/shmbutil.h
glob.o: $(topdir)/xmalloc.h
gmisc.o: $(BUILD_DIR)/config.h
gmisc.o: $(topdir)/bashtypes.h $(BASHINCDIR)/ansi_stdlib.h $(topdir)/bashansi.h
gmisc.o: $(BASHINCDIR)/shmbutil.h
xmbsrtowcs.o: ${BUILD_DIR}/config.h
xmbsrtowcs.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h
xmbsrtowcs.o: ${BASHINCDIR}/shmbutil.h
# Rules for deficient makes, like SunOS and Solaris
glob.o: glob.c
gmisc.o: gmisc.c
strmatch.o: strmatch.c
smatch.o: smatch.c
xmbsrtowcs.o: xmbsrtowcs.c
lib/glob/Makefile.in~
+162
View File
@@ -0,0 +1,162 @@
## -*- text -*- ####################################################
# #
# Makefile for the GNU Glob Library. #
# #
####################################################################
#
# Copyright (C) 1996-2009 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
srcdir = @srcdir@
VPATH = .:@srcdir@
topdir = @top_srcdir@
BUILD_DIR = @BUILD_DIR@
INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
CC = @CC@
RANLIB = @RANLIB@
AR = @AR@
ARFLAGS = @ARFLAGS@
RM = rm -f
CP = cp
MV = mv
SHELL = @MAKE_SHELL@
PROFILE_FLAGS = @PROFILE_FLAGS@
CFLAGS = @CFLAGS@
LOCAL_CFLAGS = @LOCAL_CFLAGS@
CPPFLAGS = @CPPFLAGS@
LDFLAGS = @LDFLAGS@ @LOCAL_LDFLAGS@
DEFS = @DEFS@
LOCAL_DEFS = @LOCAL_DEFS@
BASHINCDIR = ${topdir}/include
INCLUDES = -I. -I../.. -I$(topdir) -I$(BASHINCDIR) -I$(topdir)/lib
CCFLAGS = $(PROFILE_FLAGS) $(DEFS) $(LOCAL_DEFS) $(CPPFLAGS) ${INCLUDES} \
$(LOCAL_CFLAGS) $(CFLAGS)
# Here is a rule for making .o files from .c files that doesn't force
# the type of the machine (like -sun3) into the flags.
.c.o:
$(RM) $@
$(CC) -c $(CCFLAGS) $<
# The name of the library target.
LIBRARY_NAME = libglob.a
# The C code source files for this library.
CSOURCES = $(srcdir)/glob.c $(srcdir)/strmatch.c $(srcdir)/smatch.c \
$(srcdir)/xmbsrtowcs.c
# The header files for this library.
HSOURCES = $(srcdir)/strmatch.h
OBJECTS = glob.o strmatch.o smatch.o xmbsrtowcs.o
# The texinfo files which document this library.
DOCSOURCE = doc/glob.texi
DOCOBJECT = doc/glob.dvi
DOCSUPPORT = doc/Makefile
DOCUMENTATION = $(DOCSOURCE) $(DOCOBJECT) $(DOCSUPPORT)
SUPPORT = Makefile ChangeLog $(DOCSUPPORT)
SOURCES = $(CSOURCES) $(HSOURCES) $(DOCSOURCE)
THINGS_TO_TAR = $(SOURCES) $(SUPPORT)
######################################################################
all: $(LIBRARY_NAME)
$(LIBRARY_NAME): $(OBJECTS)
$(RM) -f $@
$(AR) $(ARFLAGS) $@ $(OBJECTS)
-test -n "$(RANLIB)" && $(RANLIB) $@
what-tar:
@for file in $(THINGS_TO_TAR); do \
echo $(selfdir)$$file; \
done
documentation: force
-(cd doc; $(MAKE) $(MFLAGS))
force:
# The rule for 'includes' is written funny so that the if statement
# always returns TRUE unless there really was an error installing the
# include files.
install:
clean:
rm -f $(OBJECTS) $(LIBRARY_NAME)
-(cd doc && $(MAKE) $(MFLAGS) $@ )
realclean distclean maintainer-clean: clean
-( cd doc && $(MAKE) $(MFLAGS) $@ )
$(RM) -f Makefile
mostlyclean: clean
-( cd doc && $(MAKE) $(MFLAGS) $@ )
${BUILD_DIR}/pathnames.h: ${BUILD_DIR}/config.h ${BUILD_DIR}/Makefile Makefile
-( cd ${BUILD_DIR} && ${MAKE} ${MFLAGS} pathnames.h )
######################################################################
# #
# Dependencies for the object files which make up this library. #
# #
######################################################################
smatch.o: strmatch.h
smatch.o: $(BUILD_DIR)/config.h
smatch.o: $(BASHINCDIR)/chartypes.h
smatch.o: $(BASHINCDIR)/ansi_stdlib.h $(topdir)/bashansi.h
smatch.o: $(BASHINCDIR)/shmbutil.h
smatch.o: $(topdir)/xmalloc.h
strmatch.o: strmatch.h
strmatch.o: $(BUILD_DIR)/config.h
strmatch.o: $(BASHINCDIR)/stdc.h
glob.o: $(BUILD_DIR)/config.h
glob.o: $(topdir)/shell.h $(BUILD_DIR)/pathnames.h
glob.o: $(topdir)/bashtypes.h $(BASHINCDIR)/ansi_stdlib.h $(topdir)/bashansi.h
glob.o: $(BASHINCDIR)/posixstat.h $(BASHINCDIR)/memalloc.h
glob.o: strmatch.h glob.h
glob.o: $(BASHINCDIR)/shmbutil.h
glob.o: $(topdir)/xmalloc.h
xmbsrtowcs.o: ${BUILD_DIR}/config.h
xmbsrtowcs.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h
xmbsrtowcs.o: ${BASHINCDIR}/shmbutil.h
# Rules for deficient makes, like SunOS and Solaris
glob.o: glob.c
strmatch.o: strmatch.c
smatch.o: smatch.c
xmbsrtowcs.o: xmbsrtowcs.c
# dependencies for C files that include other C files
glob.o: glob_loop.c
smatch.o: sm_loop.c
lib/glob/gmisc.c
+311
View File
@@ -0,0 +1,311 @@
/* gmisc.c -- miscellaneous pattern matching utility functions for Bash.
Copyright (C) 2010 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne-Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "bashtypes.h"
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include "bashansi.h"
#include "shmbutil.h"
#include "stdc.h"
#ifndef RPAREN
# define RPAREN '('
#endif
#ifndef LPAREN
# define LPAREN ')'
#endif
#if defined (HANDLE_MULTIBYTE)
/* Return 1 of the first character of WSTRING could match the first
character of pattern WPAT. Wide character version. */
int
match_pattern_wchar (wpat, wstring)
wchar_t *wpat, *wstring;
{
wchar_t wc;
if (*wstring == 0)
return (0);
switch (wc = *wpat++)
{
default:
return (*wstring == wc);
case L'\\':
return (*wstring == *wpat);
case L'?':
return (*wpat == LPAREN ? 1 : (*wstring != L'\0'));
case L'*':
return (1);
case L'+':
case L'!':
case L'@':
return (*wpat == LPAREN ? 1 : (*wstring == wc));
case L'[':
return (*wstring != L'\0');
}
}
int
wmatchlen (wpat, wmax)
wchar_t *wpat;
size_t wmax;
{
wchar_t wc, *wbrack;
int matlen, t, in_cclass, in_collsym, in_equiv;
if (*wpat == 0)
return (0);
matlen = 0;
while (wc = *wpat++)
{
switch (wc)
{
default:
matlen++;
break;
case L'\\':
if (*wpat == 0)
return ++matlen;
else
{
matlen++;
wpat++;
}
break;
case L'?':
if (*wpat == LPAREN)
return (matlen = -1); /* XXX for now */
else
matlen++;
break;
case L'*':
return (matlen = -1);
case L'+':
case L'!':
case L'@':
if (*wpat == LPAREN)
return (matlen = -1); /* XXX for now */
else
matlen++;
break;
case L'[':
/* scan for ending `]', skipping over embedded [:...:] */
wbrack = wpat;
wc = *wpat++;
do
{
if (wc == 0)
{
matlen += wpat - wbrack - 1; /* incremented below */
break;
}
else if (wc == L'\\')
{
wc = *wpat++;
if (*wpat == 0)
break;
}
else if (wc == L'[' && *wpat == L':') /* character class */
{
wpat++;
in_cclass = 1;
}
else if (in_cclass && wc == L':' && *wpat == L']')
{
wpat++;
in_cclass = 0;
}
else if (wc == L'[' && *wpat == L'.') /* collating symbol */
{
wpat++;
if (*wpat == L']') /* right bracket can appear as collating symbol */
wpat++;
in_collsym = 1;
}
else if (in_collsym && wc == L'.' && *wpat == L']')
{
wpat++;
in_collsym = 0;
}
else if (wc == L'[' && *wpat == L'=') /* equivalence class */
{
wpat++;
if (*wpat == L']') /* right bracket can appear as equivalence class */
wpat++;
in_equiv = 1;
}
else if (in_equiv && wc == L'=' && *wpat == L']')
{
wpat++;
in_equiv = 0;
}
}
while ((wc = *wpat++) != L']');
matlen++; /* bracket expression can only match one char */
break;
}
}
return matlen;
}
#endif
/* Return 1 of the first character of STRING could match the first
character of pattern PAT. Used to avoid n2 calls to strmatch(). */
int
match_pattern_char (pat, string)
char *pat, *string;
{
char c;
if (*string == 0)
return (0);
switch (c = *pat++)
{
default:
return (*string == c);
case '\\':
return (*string == *pat);
case '?':
return (*pat == LPAREN ? 1 : (*string != '\0'));
case '*':
return (1);
case '+':
case '!':
case '@':
return (*pat == LPAREN ? 1 : (*string == c));
case '[':
return (*string != '\0');
}
}
int
umatchlen (pat, max)
char *pat;
size_t max;
{
char c, *brack;
int matlen, t, in_cclass, in_collsym, in_equiv;
if (*pat == 0)
return (0);
matlen = 0;
while (c = *pat++)
{
switch (c)
{
default:
matlen++;
break;
case L'\\':
if (*pat == 0)
return ++matlen;
else
{
matlen++;
pat++;
}
break;
case L'?':
if (*pat == LPAREN)
return (matlen = -1); /* XXX for now */
else
matlen++;
break;
case L'*':
return (matlen = -1);
case L'+':
case L'!':
case L'@':
if (*pat == LPAREN)
return (matlen = -1); /* XXX for now */
else
matlen++;
break;
case L'[':
/* scan for ending `]', skipping over embedded [:...:] */
brack = pat;
c = *pat++;
do
{
if (c == 0)
{
matlen += pat - brack - 1; /* incremented below */
break;
}
else if (c == '\\')
{
c = *pat++;
if (*pat == 0)
break;
}
else if (c == '[' && *pat == ':') /* character class */
{
pat++;
in_cclass = 1;
}
else if (in_cclass && c == ':' && *pat == ']')
{
pat++;
in_cclass = 0;
}
else if (c == '[' && *pat == '.') /* collating symbol */
{
pat++;
if (*pat == ']') /* right bracket can appear as collating symbol */
pat++;
in_collsym = 1;
}
else if (in_collsym && c == '.' && *pat == ']')
{
pat++;
in_collsym = 0;
}
else if (c == '[' && *pat == '=') /* equivalence class */
{
pat++;
if (*pat == ']') /* right bracket can appear as equivalence class */
pat++;
in_equiv = 1;
}
else if (in_equiv && c == '=' && *pat == ']')
{
pat++;
in_equiv = 0;
}
}
while ((c = *pat++) != ']');
matlen++; /* bracket expression can only match one char */
break;
}
}
return matlen;
}
lib/glob/gmisc.c~
+311
View File
@@ -0,0 +1,311 @@
/* gmisc.c -- miscellaneous pattern matching utility functions for Bash.
Copyright (C) 2010 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne-Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "bashtypes.h"
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include "bashansi.h"
#include "shmbutil.h"
#include "stdc.h"
#ifndef RPAREN
# define RPAREN '('
#endif
#ifndef LPAREN
# define LPAREN ')'
#endif
#if defined (HANDLE_MULTIBYTE)
/* Return 1 of the first character of WSTRING could match the first
character of pattern WPAT. Wide character version. */
int
match_pattern_wchar (wpat, wstring)
wchar_t *wpat, *wstring;
{
wchar_t wc;
if (*wstring == 0)
return (0);
switch (wc = *wpat++)
{
default:
return (*wstring == wc);
case L'\\':
return (*wstring == *wpat);
case L'?':
return (*wpat == LPAREN ? 1 : (*wstring != L'\0'));
case L'*':
return (1);
case L'+':
case L'!':
case L'@':
return (*wpat == LPAREN ? 1 : (*wstring == wc));
case L'[':
return (*wstring != L'\0');
}
}
int
wmatchlen (wpat, wmax)
wchar_t *wpat;
size_t wmax;
{
wchar_t wc, *wbrack;
int matlen, t, in_cclass, in_collsym, in_equiv;
if (*wpat == 0)
return (0);
matlen = 0;
while (wc = *wpat++)
{
switch (wc)
{
default:
matlen++;
break;
case L'\\':
if (*wpat == 0)
return ++matlen;
else
{
matlen++;
wpat++;
}
break;
case L'?':
if (*wpat == LPAREN)
return (matlen = -1); /* XXX for now */
else
matlen++;
break;
case L'*':
return (matlen = -1);
case L'+':
case L'!':
case L'@':
if (*wpat == LPAREN)
return (matlen = -1); /* XXX for now */
else
matlen++;
break;
case L'[':
/* scan for ending `]', skipping over embedded [:...:] */
wbrack = wpat;
wc = *wpat++;
do
{
if (wc == 0)
{
matlen += wpat - wbrack - 1; /* incremented below */
break;
}
else if (wc == L'\\')
{
wc = *wpat++;
if (*wpat == 0)
break;
}
else if (wc == L'[' && *wpat == L':') /* character class */
{
wpat++;
in_cclass = 1;
}
else if (in_cclass && wc == L':' && *wpat == L']')
{
wpat++;
in_cclass = 0;
}
else if (wc == L'[' && *wpat == L'.') /* collating symbol */
{
wpat++;
if (*wpat == L']') /* right bracket can appear as collating symbol */
wpat++;
in_collsym = 1;
}
else if (in_collsym && wc == L'.' && *wpat == L']')
{
wpat++;
in_collsym = 0;
}
else if (wc == L'[' && *wpat == L'=') /* equivalence class */
{
wpat++;
if (*wpat == L']') /* right bracket can appear as equivalence class */
wpat++;
in_equiv = 1;
}
else if (in_equiv && wc == L'=' && *wpat == L']')
{
wpat++;
in_equiv = 0;
}
}
while ((wc = *wpat++) != L']');
matlen++; /* bracket expression can only match one char */
break;
}
}
return matlen;
}
#endif
/* Return 1 of the first character of STRING could match the first
character of pattern PAT. Used to avoid n2 calls to strmatch(). */
int
match_pattern_char (pat, string)
char *pat, *string;
{
char c;
if (*string == 0)
return (0);
switch (c = *pat++)
{
default:
return (*string == c);
case '\\':
return (*string == *pat);
case '?':
return (*pat == LPAREN ? 1 : (*string != '\0'));
case '*':
return (1);
case '+':
case '!':
case '@':
return (*pat == LPAREN ? 1 : (*string == c));
case '[':
return (*string != '\0');
}
}
int
umatchlen (pat, max)
char *pat;
size_t max;
{
char c, *brack;
int matlen, t, in_cclass, in_collsym, in_equiv;
if (*pat == 0)
return (0);
matlen = 0;
while (c = *pat++)
{
switch (c)
{
default:
matlen++;
break;
case L'\\':
if (*pat == 0)
return ++matlen;
else
{
matlen++;
pat++;
}
break;
case L'?':
if (*pat == LPAREN)
return (matlen = max); /* XXX for now */
else
matlen++;
break;
case L'*':
return (matlen = max);
case L'+':
case L'!':
case L'@':
if (*pat == LPAREN)
return (matlen = max); /* XXX for now */
else
matlen++;
break;
case L'[':
/* scan for ending `]', skipping over embedded [:...:] */
brack = pat;
c = *pat++;
do
{
if (c == 0)
{
matlen += pat - brack - 1; /* incremented below */
break;
}
else if (c == '\\')
{
c = *pat++;
if (*pat == 0)
break;
}
else if (c == '[' && *pat == ':') /* character class */
{
pat++;
in_cclass = 1;
}
else if (in_cclass && c == ':' && *pat == ']')
{
pat++;
in_cclass = 0;
}
else if (c == '[' && *pat == '.') /* collating symbol */
{
pat++;
if (*pat == ']') /* right bracket can appear as collating symbol */
pat++;
in_collsym = 1;
}
else if (in_collsym && c == '.' && *pat == ']')
{
pat++;
in_collsym = 0;
}
else if (c == '[' && *pat == '=') /* equivalence class */
{
pat++;
if (*pat == ']') /* right bracket can appear as equivalence class */
pat++;
in_equiv = 1;
}
else if (in_equiv && c == '=' && *pat == ']')
{
pat++;
in_equiv = 0;
}
}
while ((c = *pat++) != ']');
matlen++; /* bracket expression can only match one char */
break;
}
}
return matlen;
}
lib/readline/complete.c
+2 -2
View File
@@ -2092,8 +2092,8 @@ complete_fncmp (convfn, convlen, filename, filename_len)
return 1;
if (convlen < filename_len)
return 0;
s1 = convfn;
s2 = filename;
s1 = (char *)convfn;
s2 = (char *)filename;
len = filename_len;
do
{
lib/readline/doc/history.3
+17 -8
View File
@@ -6,9 +6,9 @@
.\" Case Western Reserve University
.\" chet@ins.CWRU.Edu
.\"
.\" Last Change: Thu Jul 31 08:46:08 EDT 2003
.\" Last Change: Thu Aug 12 22:24:41 EDT 2010
.\"
.TH HISTORY 3 "2003 July 31" "GNU History 6.0"
.TH HISTORY 3 "2010 August 12" "GNU History 6.2"
.\"
.\" File Name macro. This used to be `.PN', for Path Name,
.\" but Sun doesn't seem to like that very much.
@@ -40,8 +40,8 @@
.SH NAME
history \- GNU History Library
.SH COPYRIGHT
.if t The GNU History Library is Copyright \(co 1989-2002 by the Free Software Foundation, Inc.
.if n The GNU History Library is Copyright (C) 1989-2002 by the Free Software Foundation, Inc.
.if t The GNU History Library is Copyright \(co 1989-2010 by the Free Software Foundation, Inc.
.if n The GNU History Library is Copyright (C) 1989-2010 by the Free Software Foundation, Inc.
.SH DESCRIPTION
Many programs read input from the user a line at a time. The GNU
History library is able to keep track of those lines, associate arbitrary
@@ -83,6 +83,8 @@ the history expansion character.
.PP
An event designator is a reference to a command line entry in the
history list.
Unless the reference is absolute, events are relative to the current
position in the history list.
.PP
.PD 0
.TP
@@ -96,18 +98,22 @@ Refer to command line
.IR n .
.TP
.B !\-\fIn\fR
Refer to the current command line minus
Refer to the current command minus
.IR n .
.TP
.B !!
Refer to the previous command. This is a synonym for `!\-1'.
.TP
.B !\fIstring\fR
Refer to the most recent command starting with
Refer to the most recent command
preceding the current position in the history list
starting with
.IR string .
.TP
.B !?\fIstring\fR\fB[?]\fR
Refer to the most recent command containing
Refer to the most recent command
preceding the current postition in the history list
containing
.IR string .
The trailing \fB?\fP may be omitted if
.I string
@@ -569,10 +575,13 @@ The number of entries currently stored in the history list.
The maximum number of history entries. This must be changed using
\fBstifle_history()\fP.
.Vb int history_write_timestamps
.Vb int history_wite_timestamps
If non-zero, timestamps are written to the history file, so they can be
preserved between sessions. The default value is 0, meaning that
timestamps are not saved.
The current timestamp format uses the value of \fIhistory_comment_char\fP
to delimit timestamp entries in the history file. If that variable does
not have a value (the default), timestamps will not be written.
.Vb char history_expansion_char
The character that introduces a history event. The default is \fB!\fP.
lib/readline/doc/history.3~
+672
View File
@@ -0,0 +1,672 @@
.\"
.\" MAN PAGE COMMENTS to
.\"
.\" Chet Ramey
.\" Information Network Services
.\" Case Western Reserve University
.\" chet@ins.CWRU.Edu
.\"
.\" Last Change: Tue Aug 3 15:23:38 EDT 2010
.\"
.TH HISTORY 3 "2010 August 3" "GNU History 6.2"
.\"
.\" File Name macro. This used to be `.PN', for Path Name,
.\" but Sun doesn't seem to like that very much.
.\"
.de FN
\fI\|\\$1\|\fP
..
.ds lp \fR\|(\fP
.ds rp \fR\|)\fP
.\" FnN return-value fun-name N arguments
.de Fn1
\fI\\$1\fP \fB\\$2\fP \\*(lp\fI\\$3\fP\\*(rp
.br
..
.de Fn2
.if t \fI\\$1\fP \fB\\$2\fP \\*(lp\fI\\$3,\|\\$4\fP\\*(rp
.if n \fI\\$1\fP \fB\\$2\fP \\*(lp\fI\\$3, \\$4\fP\\*(rp
.br
..
.de Fn3
.if t \fI\\$1\fP \fB\\$2\fP \\*(lp\fI\\$3,\|\\$4,\|\\$5\fP\|\\*(rp
.if n \fI\\$1\fP \fB\\$2\fP \\*(lp\fI\\$3, \\$4, \\$5\fP\\*(rp
.br
..
.de Vb
\fI\\$1\fP \fB\\$2\fP
.br
..
.SH NAME
history \- GNU History Library
.SH COPYRIGHT
.if t The GNU History Library is Copyright \(co 1989-2010 by the Free Software Foundation, Inc.
.if n The GNU History Library is Copyright (C) 1989-2010 by the Free Software Foundation, Inc.
.SH DESCRIPTION
Many programs read input from the user a line at a time. The GNU
History library is able to keep track of those lines, associate arbitrary
data with each line, and utilize information from previous lines in
composing new ones.
.PP
.SH "HISTORY EXPANSION"
.PP
The history library supports a history expansion feature that
is identical to the history expansion in
.BR bash.
This section describes what syntax features are available.
.PP
History expansions introduce words from the history list into
the input stream, making it easy to repeat commands, insert the
arguments to a previous command into the current input line, or
fix errors in previous commands quickly.
.PP
History expansion is usually performed immediately after a complete line
is read.
It takes place in two parts.
The first is to determine which line from the history list
to use during substitution.
The second is to select portions of that line for inclusion into
the current one.
The line selected from the history is the \fIevent\fP,
and the portions of that line that are acted upon are \fIwords\fP.
Various \fImodifiers\fP are available to manipulate the selected words.
The line is broken into words in the same fashion as \fBbash\fP
does when reading input,
so that several words that would otherwise be separated
are considered one word when surrounded by quotes (see the
description of \fBhistory_tokenize()\fP below).
History expansions are introduced by the appearance of the
history expansion character, which is \^\fB!\fP\^ by default.
Only backslash (\^\fB\e\fP\^) and single quotes can quote
the history expansion character.
.SS Event Designators
.PP
An event designator is a reference to a command line entry in the
history list.
Unless the reference is absolute, events are relative to the current
position in the history list.
.PP
.PD 0
.TP
.B !
Start a history substitution, except when followed by a
.BR blank ,
newline, = or (.
.TP
.B !\fIn\fR
Refer to command line
.IR n .
.TP
.B !\-\fIn\fR
Refer to the current command minus
.IR n .
.TP
.B !!
Refer to the previous command. This is a synonym for `!\-1'.
.TP
.B !\fIstring\fR
Refer to the most recent command
preceding the current position in the history list
starting with
.IR string .
.TP
.B !?\fIstring\fR\fB[?]\fR
Refer to the most recent command
preceding the current postition in the history list
containing
.IR string .
The trailing \fB?\fP may be omitted if
.I string
is followed immediately by a newline.
.TP
.B \d\s+2^\s-2\u\fIstring1\fP\d\s+2^\s-2\u\fIstring2\fP\d\s+2^\s-2\u
Quick substitution. Repeat the last command, replacing
.I string1
with
.IR string2 .
Equivalent to
``!!:s/\fIstring1\fP/\fIstring2\fP/''
(see \fBModifiers\fP below).
.TP
.B !#
The entire command line typed so far.
.PD
.SS Word Designators
.PP
Word designators are used to select desired words from the event.
A
.B :
separates the event specification from the word designator.
It may be omitted if the word designator begins with a
.BR ^ ,
.BR $ ,
.BR * ,
.BR \- ,
or
.BR % .
Words are numbered from the beginning of the line,
with the first word being denoted by 0 (zero).
Words are inserted into the current line separated by single spaces.
.PP
.PD 0
.TP
.B 0 (zero)
The zeroth word. For the shell, this is the command
word.
.TP
.I n
The \fIn\fRth word.
.TP
.B ^
The first argument. That is, word 1.
.TP
.B $
The last argument.
.TP
.B %
The word matched by the most recent `?\fIstring\fR?' search.
.TP
.I x\fB\-\fPy
A range of words; `\-\fIy\fR' abbreviates `0\-\fIy\fR'.
.TP
.B *
All of the words but the zeroth. This is a synonym
for `\fI1\-$\fP'. It is not an error to use
.B *
if there is just one
word in the event; the empty string is returned in that case.
.TP
.B x*
Abbreviates \fIx\-$\fP.
.TP
.B x\-
Abbreviates \fIx\-$\fP like \fBx*\fP, but omits the last word.
.PD
.PP
If a word designator is supplied without an event specification, the
previous command is used as the event.
.SS Modifiers
.PP
After the optional word designator, there may appear a sequence of
one or more of the following modifiers, each preceded by a `:'.
.PP
.PD 0
.PP
.TP
.B h
Remove a trailing file name component, leaving only the head.
.TP
.B t
Remove all leading file name components, leaving the tail.
.TP
.B r
Remove a trailing suffix of the form \fI.xxx\fP, leaving the
basename.
.TP
.B e
Remove all but the trailing suffix.
.TP
.B p
Print the new command but do not execute it.
.TP
.B q
Quote the substituted words, escaping further substitutions.
.TP
.B x
Quote the substituted words as with
.BR q ,
but break into words at
.B blanks
and newlines.
.TP
.B s/\fIold\fP/\fInew\fP/
Substitute
.I new
for the first occurrence of
.I old
in the event line. Any delimiter can be used in place of /. The
final delimiter is optional if it is the last character of the
event line. The delimiter may be quoted in
.I old
and
.I new
with a single backslash. If & appears in
.IR new ,
it is replaced by
.IR old .
A single backslash will quote the &. If
.I old
is null, it is set to the last
.I old
substituted, or, if no previous history substitutions took place,
the last
.I string
in a
.B !?\fIstring\fR\fB[?]\fR
search.
.TP
.B &
Repeat the previous substitution.
.TP
.B g
Cause changes to be applied over the entire event line. This is
used in conjunction with `\fB:s\fP' (e.g., `\fB:gs/\fIold\fP/\fInew\fP/\fR')
or `\fB:&\fP'. If used with
`\fB:s\fP', any delimiter can be used
in place of /, and the final delimiter is optional
if it is the last character of the event line.
An \fBa\fP may be used as a synonym for \fBg\fP.
.TP
.B G
Apply the following `\fBs\fP' modifier once to each word in the event line.
.PD
.SH "PROGRAMMING WITH HISTORY FUNCTIONS"
This section describes how to use the History library in other programs.
.SS Introduction to History
.PP
The programmer using the History library has available functions
for remembering lines on a history list, associating arbitrary data
with a line, removing lines from the list, searching through the list
for a line containing an arbitrary text string, and referencing any line
in the list directly. In addition, a history \fIexpansion\fP function
is available which provides for a consistent user interface across
different programs.
.PP
The user using programs written with the History library has the
benefit of a consistent user interface with a set of well-known
commands for manipulating the text of previous lines and using that text
in new commands. The basic history manipulation commands are
identical to
the history substitution provided by \fBbash\fP.
.PP
If the programmer desires, he can use the Readline library, which
includes some history manipulation by default, and has the added
advantage of command line editing.
.PP
Before declaring any functions using any functionality the History
library provides in other code, an application writer should include
the file
.FN <readline/history.h>
in any file that uses the
History library's features. It supplies extern declarations for all
of the library's public functions and variables, and declares all of
the public data structures.
.SS History Storage
.PP
The history list is an array of history entries. A history entry is
declared as follows:
.PP
.Vb "typedef void *" histdata_t;
.PP
.nf
typedef struct _hist_entry {
char *line;
char *timestamp;
histdata_t data;
} HIST_ENTRY;
.fi
.PP
The history list itself might therefore be declared as
.PP
.Vb "HIST_ENTRY **" the_history_list;
.PP
The state of the History library is encapsulated into a single structure:
.PP
.nf
/*
* A structure used to pass around the current state of the history.
*/
typedef struct _hist_state {
HIST_ENTRY **entries; /* Pointer to the entries themselves. */
int offset; /* The location pointer within this array. */
int length; /* Number of elements within this array. */
int size; /* Number of slots allocated to this array. */
int flags;
} HISTORY_STATE;
.fi
.PP
If the flags member includes \fBHS_STIFLED\fP, the history has been
stifled.
.SH "History Functions"
.PP
This section describes the calling sequence for the various functions
exported by the GNU History library.
.SS Initializing History and State Management
This section describes functions used to initialize and manage
the state of the History library when you want to use the history
functions in your program.
.Fn1 void using_history void
Begin a session in which the history functions might be used. This
initializes the interactive variables.
.Fn1 "HISTORY_STATE *" history_get_history_state void
Return a structure describing the current state of the input history.
.Fn1 void history_set_history_state "HISTORY_STATE *state"
Set the state of the history list according to \fIstate\fP.
.SS History List Management
These functions manage individual entries on the history list, or set
parameters managing the list itself.
.Fn1 void add_history "const char *string"
Place \fIstring\fP at the end of the history list. The associated data
field (if any) is set to \fBNULL\fP.
.Fn1 void add_history_time "const char *string"
Change the time stamp associated with the most recent history entry to
\fIstring\fP.
.Fn1 "HIST_ENTRY *" remove_history "int which"
Remove history entry at offset \fIwhich\fP from the history. The
removed element is returned so you can free the line, data,
and containing structure.
.Fn1 "histdata_t" free_history_entry "HIST_ENTRY *histent"
Free the history entry \fIhistent\fP and any history library private
data associated with it. Returns the application-specific data
so the caller can dispose of it.
.Fn3 "HIST_ENTRY *" replace_history_entry "int which" "const char *line" "histdata_t data"
Make the history entry at offset \fIwhich\fP have \fIline\fP and \fIdata\fP.
This returns the old entry so the caller can dispose of any
application-specific data. In the case
of an invalid \fIwhich\fP, a \fBNULL\fP pointer is returned.
.Fn1 void clear_history "void"
Clear the history list by deleting all the entries.
.Fn1 void stifle_history "int max"
Stifle the history list, remembering only the last \fImax\fP entries.
.Fn1 int unstifle_history "void"
Stop stifling the history. This returns the previously-set
maximum number of history entries (as set by \fBstifle_history()\fP).
history was stifled. The value is positive if the history was
stifled, negative if it wasn't.
.Fn1 int history_is_stifled "void"
Returns non-zero if the history is stifled, zero if it is not.
.SS Information About the History List
These functions return information about the entire history list or
individual list entries.
.Fn1 "HIST_ENTRY **" history_list "void"
Return a \fBNULL\fP terminated array of \fIHIST_ENTRY *\fP which is the
current input history. Element 0 of this list is the beginning of time.
If there is no history, return \fBNULL\fP.
.Fn1 int where_history "void"
Returns the offset of the current history element.
.Fn1 "HIST_ENTRY *" current_history "void"
Return the history entry at the current position, as determined by
\fBwhere_history()\fP. If there is no entry there, return a \fBNULL\fP
pointer.
.Fn1 "HIST_ENTRY *" history_get "int offset"
Return the history entry at position \fIoffset\fP, starting from
\fBhistory_base\fP.
If there is no entry there, or if \fIoffset\fP
is greater than the history length, return a \fBNULL\fP pointer.
.Fn1 "time_t" history_get_time "HIST_ENTRY *"
Return the time stamp associated with the history entry passed as the argument.
.Fn1 int history_total_bytes "void"
Return the number of bytes that the primary history entries are using.
This function returns the sum of the lengths of all the lines in the
history.
.SS Moving Around the History List
These functions allow the current index into the history list to be
set or changed.
.Fn1 int history_set_pos "int pos"
Set the current history offset to \fIpos\fP, an absolute index
into the list.
Returns 1 on success, 0 if \fIpos\fP is less than zero or greater
than the number of history entries.
.Fn1 "HIST_ENTRY *" previous_history "void"
Back up the current history offset to the previous history entry, and
return a pointer to that entry. If there is no previous entry, return
a \fBNULL\fP pointer.
.Fn1 "HIST_ENTRY *" next_history "void"
Move the current history offset forward to the next history entry, and
return the a pointer to that entry. If there is no next entry, return
a \fBNULL\fP pointer.
.SS Searching the History List
These functions allow searching of the history list for entries containing
a specific string. Searching may be performed both forward and backward
from the current history position. The search may be \fIanchored\fP,
meaning that the string must match at the beginning of the history entry.
.Fn2 int history_search "const char *string" "int direction"
Search the history for \fIstring\fP, starting at the current history offset.
If \fIdirection\fP is less than 0, then the search is through
previous entries, otherwise through subsequent entries.
If \fIstring\fP is found, then
the current history index is set to that history entry, and the value
returned is the offset in the line of the entry where
\fIstring\fP was found. Otherwise, nothing is changed, and a -1 is
returned.
.Fn2 int history_search_prefix "const char *string" "int direction"
Search the history for \fIstring\fP, starting at the current history
offset. The search is anchored: matching lines must begin with
\fIstring\fP. If \fIdirection\fP is less than 0, then the search is
through previous entries, otherwise through subsequent entries.
If \fIstring\fP is found, then the
current history index is set to that entry, and the return value is 0.
Otherwise, nothing is changed, and a -1 is returned.
.Fn3 int history_search_pos "const char *string" "int direction" "int pos"
Search for \fIstring\fP in the history list, starting at \fIpos\fP, an
absolute index into the list. If \fIdirection\fP is negative, the search
proceeds backward from \fIpos\fP, otherwise forward. Returns the absolute
index of the history element where \fIstring\fP was found, or -1 otherwise.
.SS Managing the History File
The History library can read the history from and write it to a file.
This section documents the functions for managing a history file.
.Fn1 int read_history "const char *filename"
Add the contents of \fIfilename\fP to the history list, a line at a time.
If \fIfilename\fP is \fBNULL\fP, then read from \fI~/.history\fP.
Returns 0 if successful, or \fBerrno\fP if not.
.Fn3 int read_history_range "const char *filename" "int from" "int to"
Read a range of lines from \fIfilename\fP, adding them to the history list.
Start reading at line \fIfrom\fP and end at \fIto\fP.
If \fIfrom\fP is zero, start at the beginning. If \fIto\fP is less than
\fIfrom\fP, then read until the end of the file. If \fIfilename\fP is
\fBNULL\fP, then read from \fI~/.history\fP. Returns 0 if successful,
or \fBerrno\fP if not.
.Fn1 int write_history "const char *filename"
Write the current history to \fIfilename\fP, overwriting \fIfilename\fP
if necessary.
If \fIfilename\fP is \fBNULL\fP, then write the history list to \fI~/.history\fP.
Returns 0 on success, or \fBerrno\fP on a read or write error.
.Fn2 int append_history "int nelements" "const char *filename"
Append the last \fInelements\fP of the history list to \fIfilename\fP.
If \fIfilename\fP is \fBNULL\fP, then append to \fI~/.history\fP.
Returns 0 on success, or \fBerrno\fP on a read or write error.
.Fn2 int history_truncate_file "const char *filename" "int nlines"
Truncate the history file \fIfilename\fP, leaving only the last
\fInlines\fP lines.
If \fIfilename\fP is \fBNULL\fP, then \fI~/.history\fP is truncated.
Returns 0 on success, or \fBerrno\fP on failure.
.SS History Expansion
These functions implement history expansion.
.Fn2 int history_expand "char *string" "char **output"
Expand \fIstring\fP, placing the result into \fIoutput\fP, a pointer
to a string. Returns:
.RS
.PD 0
.TP
0
If no expansions took place (or, if the only change in
the text was the removal of escape characters preceding the history expansion
character);
.TP
1
if expansions did take place;
.TP
-1
if there was an error in expansion;
.TP
2
if the returned line should be displayed, but not executed,
as with the \fB:p\fP modifier.
.PD
.RE
If an error ocurred in expansion, then \fIoutput\fP contains a descriptive
error message.
.Fn3 "char *" get_history_event "const char *string" "int *cindex" "int qchar"
Returns the text of the history event beginning at \fIstring\fP +
\fI*cindex\fP. \fI*cindex\fP is modified to point to after the event
specifier. At function entry, \fIcindex\fP points to the index into
\fIstring\fP where the history event specification begins. \fIqchar\fP
is a character that is allowed to end the event specification in addition
to the ``normal'' terminating characters.
.Fn1 "char **" history_tokenize "const char *string"
Return an array of tokens parsed out of \fIstring\fP, much as the
shell might.
The tokens are split on the characters in the
\fBhistory_word_delimiters\fP variable,
and shell quoting conventions are obeyed.
.Fn3 "char *" history_arg_extract "int first" "int last" "const char *string"
Extract a string segment consisting of the \fIfirst\fP through \fIlast\fP
arguments present in \fIstring\fP. Arguments are split using
\fBhistory_tokenize()\fP.
.SS History Variables
This section describes the externally-visible variables exported by
the GNU History Library.
.Vb int history_base
The logical offset of the first entry in the history list.
.Vb int history_length
The number of entries currently stored in the history list.
.Vb int history_max_entries
The maximum number of history entries. This must be changed using
\fBstifle_history()\fP.
.Vb int history_wite_timestamps
If non-zero, timestamps are written to the history file, so they can be
preserved between sessions. The default value is 0, meaning that
timestamps are not saved.
The current timestamp format uses the value of \fIhistory_comment_char\fP
to delimit timestamp entries in the history file. If that variable does
not have a value (the default), timestamps will not be written.
.Vb char history_expansion_char
The character that introduces a history event. The default is \fB!\fP.
Setting this to 0 inhibits history expansion.
.Vb char history_subst_char
The character that invokes word substitution if found at the start of
a line. The default is \fB^\fP.
.Vb char history_comment_char
During tokenization, if this character is seen as the first character
of a word, then it and all subsequent characters up to a newline are
ignored, suppressing history expansion for the remainder of the line.
This is disabled by default.
.Vb "char *" history_word_delimiters
The characters that separate tokens for \fBhistory_tokenize()\fP.
The default value is \fB"\ \et\en()<>;&|"\fP.
.Vb "char *" history_no_expand_chars
The list of characters which inhibit history expansion if found immediately
following \fBhistory_expansion_char\fP. The default is space, tab, newline,
\fB\er\fP, and \fB=\fP.
.Vb "char *" history_search_delimiter_chars
The list of additional characters which can delimit a history search
string, in addition to space, tab, \fI:\fP and \fI?\fP in the case of
a substring search. The default is empty.
.Vb int history_quotes_inhibit_expansion
If non-zero, single-quoted words are not scanned for the history expansion
character. The default value is 0.
.Vb "rl_linebuf_func_t *" history_inhibit_expansion_function
This should be set to the address of a function that takes two arguments:
a \fBchar *\fP (\fIstring\fP)
and an \fBint\fP index into that string (\fIi\fP).
It should return a non-zero value if the history expansion starting at
\fIstring[i]\fP should not be performed; zero if the expansion should
be done.
It is intended for use by applications like \fBbash\fP that use the history
expansion character for additional purposes.
By default, this variable is set to \fBNULL\fP.
.SH FILES
.PD 0
.TP
.FN ~/.history
Default filename for reading and writing saved history
.PD
.SH "SEE ALSO"
.PD 0
.TP
\fIThe Gnu Readline Library\fP, Brian Fox and Chet Ramey
.TP
\fIThe Gnu History Library\fP, Brian Fox and Chet Ramey
.TP
\fIbash\fP(1)
.TP
\fIreadline\fP(3)
.PD
.SH AUTHORS
Brian Fox, Free Software Foundation
.br
bfox@gnu.org
.PP
Chet Ramey, Case Western Reserve University
.br
chet@ins.CWRU.Edu
.SH BUG REPORTS
If you find a bug in the
.B history
library, you should report it. But first, you should
make sure that it really is a bug, and that it appears in the latest
version of the
.B history
library that you have.
.PP
Once you have determined that a bug actually exists, mail a
bug report to \fIbug\-readline\fP@\fIgnu.org\fP.
If you have a fix, you are welcome to mail that
as well! Suggestions and `philosophical' bug reports may be mailed
to \fPbug-readline\fP@\fIgnu.org\fP or posted to the Usenet
newsgroup
.BR gnu.bash.bug .
.PP
Comments and bug reports concerning
this manual page should be directed to
.IR chet@ins.CWRU.Edu .
lib/readline/doc/hstech.texi
+4
View File
@@ -426,6 +426,10 @@ The maximum number of history entries. This must be changed using
If non-zero, timestamps are written to the history file, so they can be
preserved between sessions. The default value is 0, meaning that
timestamps are not saved.
The current timestamp format uses the value of @var{history_comment_char}
to delimit timestamp entries in the history file. If that variable does
not have a value (the default), timestamps will not be written.
@end deftypevar
@deftypevar char history_expansion_char
lib/readline/doc/hstech.texi~
+573
View File
@@ -0,0 +1,573 @@
@ignore
This file documents the user interface to the GNU History library.
Copyright (C) 1988-2007 Free Software Foundation, Inc.
Authored by Brian Fox and Chet Ramey.
Permission is granted to make and distribute verbatim copies of this manual
provided the copyright notice and this permission notice are preserved on
all copies.
Permission is granted to process this file through Tex and print the
results, provided the printed document carries copying permission notice
identical to this one except for the removal of this paragraph (this
paragraph not being relevant to the printed manual).
Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided also that the
GNU Copyright statement is available to the distributee, and provided that
the entire resulting derived work is distributed under the terms of a
permission notice identical to this one.
Permission is granted to copy and distribute translations of this manual
into another language, under the above conditions for modified versions.
@end ignore
@node Programming with GNU History
@chapter Programming with GNU History
This chapter describes how to interface programs that you write
with the @sc{gnu} History Library.
It should be considered a technical guide.
For information on the interactive use of @sc{gnu} History, @pxref{Using
History Interactively}.
@menu
* Introduction to History:: What is the GNU History library for?
* History Storage:: How information is stored.
* History Functions:: Functions that you can use.
* History Variables:: Variables that control behaviour.
* History Programming Example:: Example of using the GNU History Library.
@end menu
@node Introduction to History
@section Introduction to History
Many programs read input from the user a line at a time. The @sc{gnu}
History library is able to keep track of those lines, associate arbitrary
data with each line, and utilize information from previous lines in
composing new ones.
The programmer using the History library has available functions
for remembering lines on a history list, associating arbitrary data
with a line, removing lines from the list, searching through the list
for a line containing an arbitrary text string, and referencing any line
in the list directly. In addition, a history @dfn{expansion} function
is available which provides for a consistent user interface across
different programs.
The user using programs written with the History library has the
benefit of a consistent user interface with a set of well-known
commands for manipulating the text of previous lines and using that text
in new commands. The basic history manipulation commands are similar to
the history substitution provided by @code{csh}.
If the programmer desires, he can use the Readline library, which
includes some history manipulation by default, and has the added
advantage of command line editing.
Before declaring any functions using any functionality the History
library provides in other code, an application writer should include
the file @code{<readline/history.h>} in any file that uses the
History library's features. It supplies extern declarations for all
of the library's public functions and variables, and declares all of
the public data structures.
@node History Storage
@section History Storage
The history list is an array of history entries. A history entry is
declared as follows:
@example
typedef void *histdata_t;
typedef struct _hist_entry @{
char *line;
char *timestamp;
histdata_t data;
@} HIST_ENTRY;
@end example
The history list itself might therefore be declared as
@example
HIST_ENTRY **the_history_list;
@end example
The state of the History library is encapsulated into a single structure:
@example
/*
* A structure used to pass around the current state of the history.
*/
typedef struct _hist_state @{
HIST_ENTRY **entries; /* Pointer to the entries themselves. */
int offset; /* The location pointer within this array. */
int length; /* Number of elements within this array. */
int size; /* Number of slots allocated to this array. */
int flags;
@} HISTORY_STATE;
@end example
If the flags member includes @code{HS_STIFLED}, the history has been
stifled.
@node History Functions
@section History Functions
This section describes the calling sequence for the various functions
exported by the @sc{gnu} History library.
@menu
* Initializing History and State Management:: Functions to call when you
want to use history in a
program.
* History List Management:: Functions used to manage the list
of history entries.
* Information About the History List:: Functions returning information about
the history list.
* Moving Around the History List:: Functions used to change the position
in the history list.
* Searching the History List:: Functions to search the history list
for entries containing a string.
* Managing the History File:: Functions that read and write a file
containing the history list.
* History Expansion:: Functions to perform csh-like history
expansion.
@end menu
@node Initializing History and State Management
@subsection Initializing History and State Management
This section describes functions used to initialize and manage
the state of the History library when you want to use the history
functions in your program.
@deftypefun void using_history (void)
Begin a session in which the history functions might be used. This
initializes the interactive variables.
@end deftypefun
@deftypefun {HISTORY_STATE *} history_get_history_state (void)
Return a structure describing the current state of the input history.
@end deftypefun
@deftypefun void history_set_history_state (HISTORY_STATE *state)
Set the state of the history list according to @var{state}.
@end deftypefun
@node History List Management
@subsection History List Management
These functions manage individual entries on the history list, or set
parameters managing the list itself.
@deftypefun void add_history (const char *string)
Place @var{string} at the end of the history list. The associated data
field (if any) is set to @code{NULL}.
@end deftypefun
@deftypefun void add_history_time (const char *string)
Change the time stamp associated with the most recent history entry to
@var{string}.
@end deftypefun
@deftypefun {HIST_ENTRY *} remove_history (int which)
Remove history entry at offset @var{which} from the history. The
removed element is returned so you can free the line, data,
and containing structure.
@end deftypefun
@deftypefun {histdata_t} free_history_entry (HIST_ENTRY *histent)
Free the history entry @var{histent} and any history library private
data associated with it. Returns the application-specific data
so the caller can dispose of it.
@end deftypefun
@deftypefun {HIST_ENTRY *} replace_history_entry (int which, const char *line, histdata_t data)
Make the history entry at offset @var{which} have @var{line} and @var{data}.
This returns the old entry so the caller can dispose of any
application-specific data. In the case
of an invalid @var{which}, a @code{NULL} pointer is returned.
@end deftypefun
@deftypefun void clear_history (void)
Clear the history list by deleting all the entries.
@end deftypefun
@deftypefun void stifle_history (int max)
Stifle the history list, remembering only the last @var{max} entries.
@end deftypefun
@deftypefun int unstifle_history (void)
Stop stifling the history. This returns the previously-set
maximum number of history entries (as set by @code{stifle_history()}).
The value is positive if the history was
stifled, negative if it wasn't.
@end deftypefun
@deftypefun int history_is_stifled (void)
Returns non-zero if the history is stifled, zero if it is not.
@end deftypefun
@node Information About the History List
@subsection Information About the History List
These functions return information about the entire history list or
individual list entries.
@deftypefun {HIST_ENTRY **} history_list (void)
Return a @code{NULL} terminated array of @code{HIST_ENTRY *} which is the
current input history. Element 0 of this list is the beginning of time.
If there is no history, return @code{NULL}.
@end deftypefun
@deftypefun int where_history (void)
Returns the offset of the current history element.
@end deftypefun
@deftypefun {HIST_ENTRY *} current_history (void)
Return the history entry at the current position, as determined by
@code{where_history()}. If there is no entry there, return a @code{NULL}
pointer.
@end deftypefun
@deftypefun {HIST_ENTRY *} history_get (int offset)
Return the history entry at position @var{offset}, starting from
@code{history_base} (@pxref{History Variables}).
If there is no entry there, or if @var{offset}
is greater than the history length, return a @code{NULL} pointer.
@end deftypefun
@deftypefun time_t history_get_time (HIST_ENTRY *entry)
Return the time stamp associated with the history entry @var{entry}.
@end deftypefun
@deftypefun int history_total_bytes (void)
Return the number of bytes that the primary history entries are using.
This function returns the sum of the lengths of all the lines in the
history.
@end deftypefun
@node Moving Around the History List
@subsection Moving Around the History List
These functions allow the current index into the history list to be
set or changed.
@deftypefun int history_set_pos (int pos)
Set the current history offset to @var{pos}, an absolute index
into the list.
Returns 1 on success, 0 if @var{pos} is less than zero or greater
than the number of history entries.
@end deftypefun
@deftypefun {HIST_ENTRY *} previous_history (void)
Back up the current history offset to the previous history entry, and
return a pointer to that entry. If there is no previous entry, return
a @code{NULL} pointer.
@end deftypefun
@deftypefun {HIST_ENTRY *} next_history (void)
Move the current history offset forward to the next history entry, and
return the a pointer to that entry. If there is no next entry, return
a @code{NULL} pointer.
@end deftypefun
@node Searching the History List
@subsection Searching the History List
@cindex History Searching
These functions allow searching of the history list for entries containing
a specific string. Searching may be performed both forward and backward
from the current history position. The search may be @dfn{anchored},
meaning that the string must match at the beginning of the history entry.
@cindex anchored search
@deftypefun int history_search (const char *string, int direction)
Search the history for @var{string}, starting at the current history offset.
If @var{direction} is less than 0, then the search is through
previous entries, otherwise through subsequent entries.
If @var{string} is found, then
the current history index is set to that history entry, and the value
returned is the offset in the line of the entry where
@var{string} was found. Otherwise, nothing is changed, and a -1 is
returned.
@end deftypefun
@deftypefun int history_search_prefix (const char *string, int direction)
Search the history for @var{string}, starting at the current history
offset. The search is anchored: matching lines must begin with
@var{string}. If @var{direction} is less than 0, then the search is
through previous entries, otherwise through subsequent entries.
If @var{string} is found, then the
current history index is set to that entry, and the return value is 0.
Otherwise, nothing is changed, and a -1 is returned.
@end deftypefun
@deftypefun int history_search_pos (const char *string, int direction, int pos)
Search for @var{string} in the history list, starting at @var{pos}, an
absolute index into the list. If @var{direction} is negative, the search
proceeds backward from @var{pos}, otherwise forward. Returns the absolute
index of the history element where @var{string} was found, or -1 otherwise.
@end deftypefun
@node Managing the History File
@subsection Managing the History File
The History library can read the history from and write it to a file.
This section documents the functions for managing a history file.
@deftypefun int read_history (const char *filename)
Add the contents of @var{filename} to the history list, a line at a time.
If @var{filename} is @code{NULL}, then read from @file{~/.history}.
Returns 0 if successful, or @code{errno} if not.
@end deftypefun
@deftypefun int read_history_range (const char *filename, int from, int to)
Read a range of lines from @var{filename}, adding them to the history list.
Start reading at line @var{from} and end at @var{to}.
If @var{from} is zero, start at the beginning. If @var{to} is less than
@var{from}, then read until the end of the file. If @var{filename} is
@code{NULL}, then read from @file{~/.history}. Returns 0 if successful,
or @code{errno} if not.
@end deftypefun
@deftypefun int write_history (const char *filename)
Write the current history to @var{filename}, overwriting @var{filename}
if necessary.
If @var{filename} is @code{NULL}, then write the history list to
@file{~/.history}.
Returns 0 on success, or @code{errno} on a read or write error.
@end deftypefun
@deftypefun int append_history (int nelements, const char *filename)
Append the last @var{nelements} of the history list to @var{filename}.
If @var{filename} is @code{NULL}, then append to @file{~/.history}.
Returns 0 on success, or @code{errno} on a read or write error.
@end deftypefun
@deftypefun int history_truncate_file (const char *filename, int nlines)
Truncate the history file @var{filename}, leaving only the last
@var{nlines} lines.
If @var{filename} is @code{NULL}, then @file{~/.history} is truncated.
Returns 0 on success, or @code{errno} on failure.
@end deftypefun
@node History Expansion
@subsection History Expansion
These functions implement history expansion.
@deftypefun int history_expand (char *string, char **output)
Expand @var{string}, placing the result into @var{output}, a pointer
to a string (@pxref{History Interaction}). Returns:
@table @code
@item 0
If no expansions took place (or, if the only change in
the text was the removal of escape characters preceding the history expansion
character);
@item 1
if expansions did take place;
@item -1
if there was an error in expansion;
@item 2
if the returned line should be displayed, but not executed,
as with the @code{:p} modifier (@pxref{Modifiers}).
@end table
If an error ocurred in expansion, then @var{output} contains a descriptive
error message.
@end deftypefun
@deftypefun {char *} get_history_event (const char *string, int *cindex, int qchar)
Returns the text of the history event beginning at @var{string} +
@var{*cindex}. @var{*cindex} is modified to point to after the event
specifier. At function entry, @var{cindex} points to the index into
@var{string} where the history event specification begins. @var{qchar}
is a character that is allowed to end the event specification in addition
to the ``normal'' terminating characters.
@end deftypefun
@deftypefun {char **} history_tokenize (const char *string)
Return an array of tokens parsed out of @var{string}, much as the
shell might. The tokens are split on the characters in the
@var{history_word_delimiters} variable,
and shell quoting conventions are obeyed.
@end deftypefun
@deftypefun {char *} history_arg_extract (int first, int last, const char *string)
Extract a string segment consisting of the @var{first} through @var{last}
arguments present in @var{string}. Arguments are split using
@code{history_tokenize}.
@end deftypefun
@node History Variables
@section History Variables
This section describes the externally-visible variables exported by
the @sc{gnu} History Library.
@deftypevar int history_base
The logical offset of the first entry in the history list.
@end deftypevar
@deftypevar int history_length
The number of entries currently stored in the history list.
@end deftypevar
@deftypevar int history_max_entries
The maximum number of history entries. This must be changed using
@code{stifle_history()}.
@end deftypevar
@deftypevar int history_write_timestamps
If non-zero, timestamps are written to the history file, so they can be
preserved between sessions. The default value is 0, meaning that
timestamps are not saved.
@end deftypevar
@deftypevar char history_expansion_char
The character that introduces a history event. The default is @samp{!}.
Setting this to 0 inhibits history expansion.
@end deftypevar
@deftypevar char history_subst_char
The character that invokes word substitution if found at the start of
a line. The default is @samp{^}.
@end deftypevar
@deftypevar char history_comment_char
During tokenization, if this character is seen as the first character
of a word, then it and all subsequent characters up to a newline are
ignored, suppressing history expansion for the remainder of the line.
This is disabled by default.
@end deftypevar
@deftypevar {char *} history_word_delimiters
The characters that separate tokens for @code{history_tokenize()}.
The default value is @code{" \t\n()<>;&|"}.
@end deftypevar
@deftypevar {char *} history_search_delimiter_chars
The list of additional characters which can delimit a history search
string, in addition to space, TAB, @samp{:} and @samp{?} in the case of
a substring search. The default is empty.
@end deftypevar
@deftypevar {char *} history_no_expand_chars
The list of characters which inhibit history expansion if found immediately
following @var{history_expansion_char}. The default is space, tab, newline,
carriage return, and @samp{=}.
@end deftypevar
@deftypevar int history_quotes_inhibit_expansion
If non-zero, single-quoted words are not scanned for the history expansion
character. The default value is 0.
@end deftypevar
@deftypevar {rl_linebuf_func_t *} history_inhibit_expansion_function
This should be set to the address of a function that takes two arguments:
a @code{char *} (@var{string})
and an @code{int} index into that string (@var{i}).
It should return a non-zero value if the history expansion starting at
@var{string[i]} should not be performed; zero if the expansion should
be done.
It is intended for use by applications like Bash that use the history
expansion character for additional purposes.
By default, this variable is set to @code{NULL}.
@end deftypevar
@node History Programming Example
@section History Programming Example
The following program demonstrates simple use of the @sc{gnu} History Library.
@smallexample
#include <stdio.h>
#include <readline/history.h>
main (argc, argv)
int argc;
char **argv;
@{
char line[1024], *t;
int len, done = 0;
line[0] = 0;
using_history ();
while (!done)
@{
printf ("history$ ");
fflush (stdout);
t = fgets (line, sizeof (line) - 1, stdin);
if (t && *t)
@{
len = strlen (t);
if (t[len - 1] == '\n')
t[len - 1] = '\0';
@}
if (!t)
strcpy (line, "quit");
if (line[0])
@{
char *expansion;
int result;
result = history_expand (line, &expansion);
if (result)
fprintf (stderr, "%s\n", expansion);
if (result < 0 || result == 2)
@{
free (expansion);
continue;
@}
add_history (expansion);
strncpy (line, expansion, sizeof (line) - 1);
free (expansion);
@}
if (strcmp (line, "quit") == 0)
done = 1;
else if (strcmp (line, "save") == 0)
write_history ("history_file");
else if (strcmp (line, "read") == 0)
read_history ("history_file");
else if (strcmp (line, "list") == 0)
@{
register HIST_ENTRY **the_list;
register int i;
the_list = history_list ();
if (the_list)
for (i = 0; the_list[i]; i++)
printf ("%d: %s\n", i + history_base, the_list[i]->line);
@}
else if (strncmp (line, "delete", 6) == 0)
@{
int which;
if ((sscanf (line + 6, "%d", &which)) == 1)
@{
HIST_ENTRY *entry = remove_history (which);
if (!entry)
fprintf (stderr, "No such entry %d\n", which);
else
@{
free (entry->line);
free (entry);
@}
@}
else
@{
fprintf (stderr, "non-numeric arg given to `delete'\n");
@}
@}
@}
@}
@end smallexample
lib/readline/doc/hsuser.texi
+10 -3
View File
@@ -1,7 +1,7 @@
@ignore
This file documents the user interface to the GNU History library.
Copyright (C) 1988-2007 Free Software Foundation, Inc.
Copyright (C) 1988--2010 Free Software Foundation, Inc.
Authored by Brian Fox and Chet Ramey.
Permission is granted to make and distribute verbatim copies of this manual
@@ -299,6 +299,8 @@ writing the history file.
An event designator is a reference to a command line entry in the
history list.
Unless the reference is absolute, events are relative to the current
position in the history list.
@cindex history events
@table @asis
@@ -324,10 +326,15 @@ Refer to the command @var{n} lines back.
Refer to the previous command. This is a synonym for @samp{!-1}.
@item @code{!@var{string}}
Refer to the most recent command starting with @var{string}.
Refer to the most recent command
preceding the current position in the history list
starting with @var{string}.
@item @code{!?@var{string}[?]}
Refer to the most recent command containing @var{string}. The trailing
Refer to the most recent command
preceding the current position in the history list
containing @var{string}.
The trailing
@samp{?} may be omitted if the @var{string} is followed immediately by
a newline.
lib/readline/doc/hsuser.texi~
+471
View File
@@ -0,0 +1,471 @@
@ignore
This file documents the user interface to the GNU History library.
Copyright (C) 1988-2010 Free Software Foundation, Inc.
Authored by Brian Fox and Chet Ramey.
Permission is granted to make and distribute verbatim copies of this manual
provided the copyright notice and this permission notice are preserved on
all copies.
Permission is granted to process this file through Tex and print the
results, provided the printed document carries copying permission notice
identical to this one except for the removal of this paragraph (this
paragraph not being relevant to the printed manual).
Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided also that the
GNU Copyright statement is available to the distributee, and provided that
the entire resulting derived work is distributed under the terms of a
permission notice identical to this one.
Permission is granted to copy and distribute translations of this manual
into another language, under the above conditions for modified versions.
@end ignore
@node Using History Interactively
@chapter Using History Interactively
@ifclear BashFeatures
@defcodeindex bt
@end ifclear
@ifset BashFeatures
This chapter describes how to use the @sc{gnu} History Library
interactively, from a user's standpoint.
It should be considered a user's guide.
For information on using the @sc{gnu} History Library in other programs,
see the @sc{gnu} Readline Library Manual.
@end ifset
@ifclear BashFeatures
This chapter describes how to use the @sc{gnu} History Library interactively,
from a user's standpoint. It should be considered a user's guide. For
information on using the @sc{gnu} History Library in your own programs,
@pxref{Programming with GNU History}.
@end ifclear
@ifset BashFeatures
@menu
* Bash History Facilities:: How Bash lets you manipulate your command
history.
* Bash History Builtins:: The Bash builtin commands that manipulate
the command history.
* History Interaction:: What it feels like using History as a user.
@end menu
@end ifset
@ifclear BashFeatures
@menu
* History Interaction:: What it feels like using History as a user.
@end menu
@end ifclear
@ifset BashFeatures
@node Bash History Facilities
@section Bash History Facilities
@cindex command history
@cindex history list
When the @option{-o history} option to the @code{set} builtin
is enabled (@pxref{The Set Builtin}),
the shell provides access to the @dfn{command history},
the list of commands previously typed.
The value of the @env{HISTSIZE} shell variable is used as the
number of commands to save in a history list.
The text of the last @env{$HISTSIZE}
commands (default 500) is saved.
The shell stores each command in the history list prior to
parameter and variable expansion
but after history expansion is performed, subject to the
values of the shell variables
@env{HISTIGNORE} and @env{HISTCONTROL}.
When the shell starts up, the history is initialized from the
file named by the @env{HISTFILE} variable (default @file{~/.bash_history}).
The file named by the value of @env{HISTFILE} is truncated, if
necessary, to contain no more than the number of lines specified by
the value of the @env{HISTFILESIZE} variable.
When an interactive shell exits, the last
@env{$HISTSIZE} lines are copied from the history list to the file
named by @env{$HISTFILE}.
If the @code{histappend} shell option is set (@pxref{Bash Builtins}),
the lines are appended to the history file,
otherwise the history file is overwritten.
If @env{HISTFILE}
is unset, or if the history file is unwritable, the history is
not saved. After saving the history, the history file is truncated
to contain no more than @env{$HISTFILESIZE}
lines. If @env{HISTFILESIZE} is not set, no truncation is performed.
If the @env{HISTTIMEFORMAT} is set, the time stamp information
associated with each history entry is written to the history file,
marked with the history comment character.
When the history file is read, lines beginning with the history
comment character followed immediately by a digit are interpreted
as timestamps for the previous history line.
The builtin command @code{fc} may be used to list or edit and re-execute
a portion of the history list.
The @code{history} builtin may be used to display or modify the history
list and manipulate the history file.
When using command-line editing, search commands
are available in each editing mode that provide access to the
history list (@pxref{Commands For History}).
The shell allows control over which commands are saved on the history
list. The @env{HISTCONTROL} and @env{HISTIGNORE}
variables may be set to cause the shell to save only a subset of the
commands entered.
The @code{cmdhist}
shell option, if enabled, causes the shell to attempt to save each
line of a multi-line command in the same history entry, adding
semicolons where necessary to preserve syntactic correctness.
The @code{lithist}
shell option causes the shell to save the command with embedded newlines
instead of semicolons.
The @code{shopt} builtin is used to set these options.
@xref{Bash Builtins}, for a description of @code{shopt}.
@node Bash History Builtins
@section Bash History Builtins
@cindex history builtins
Bash provides two builtin commands which manipulate the
history list and history file.
@table @code
@item fc
@btindex fc
@example
@code{fc [-e @var{ename}] [-lnr] [@var{first}] [@var{last}]}
@code{fc -s [@var{pat}=@var{rep}] [@var{command}]}
@end example
Fix Command. In the first form, a range of commands from @var{first} to
@var{last} is selected from the history list. Both @var{first} and
@var{last} may be specified as a string (to locate the most recent
command beginning with that string) or as a number (an index into the
history list, where a negative number is used as an offset from the
current command number). If @var{last} is not specified it is set to
@var{first}. If @var{first} is not specified it is set to the previous
command for editing and @minus{}16 for listing. If the @option{-l} flag is
given, the commands are listed on standard output. The @option{-n} flag
suppresses the command numbers when listing. The @option{-r} flag
reverses the order of the listing. Otherwise, the editor given by
@var{ename} is invoked on a file containing those commands. If
@var{ename} is not given, the value of the following variable expansion
is used: @code{$@{FCEDIT:-$@{EDITOR:-vi@}@}}. This says to use the
value of the @env{FCEDIT} variable if set, or the value of the
@env{EDITOR} variable if that is set, or @code{vi} if neither is set.
When editing is complete, the edited commands are echoed and executed.
In the second form, @var{command} is re-executed after each instance
of @var{pat} in the selected command is replaced by @var{rep}.
A useful alias to use with the @code{fc} command is @code{r='fc -s'}, so
that typing @samp{r cc} runs the last command beginning with @code{cc}
and typing @samp{r} re-executes the last command (@pxref{Aliases}).
@item history
@btindex history
@example
history [@var{n}]
history -c
history -d @var{offset}
history [-anrw] [@var{filename}]
history -ps @var{arg}
@end example
With no options, display the history list with line numbers.
Lines prefixed with a @samp{*} have been modified.
An argument of @var{n} lists only the last @var{n} lines.
If the shell variable @env{HISTTIMEFORMAT} is set and not null,
it is used as a format string for @var{strftime} to display
the time stamp associated with each displayed history entry.
No intervening blank is printed between the formatted time stamp
and the history line.
Options, if supplied, have the following meanings:
@table @code
@item -c
Clear the history list. This may be combined
with the other options to replace the history list completely.
@item -d @var{offset}
Delete the history entry at position @var{offset}.
@var{offset} should be specified as it appears when the history is
displayed.
@item -a
Append the new
history lines (history lines entered since the beginning of the
current Bash session) to the history file.
@item -n
Append the history lines not already read from the history file
to the current history list. These are lines appended to the history
file since the beginning of the current Bash session.
@item -r
Read the current history file and append its contents to
the history list.
@item -w
Write out the current history to the history file.
@item -p
Perform history substitution on the @var{arg}s and display the result
on the standard output, without storing the results in the history list.
@item -s
The @var{arg}s are added to the end of
the history list as a single entry.
@end table
When any of the @option{-w}, @option{-r}, @option{-a}, or @option{-n} options is
used, if @var{filename}
is given, then it is used as the history file. If not, then
the value of the @env{HISTFILE} variable is used.
@end table
@end ifset
@node History Interaction
@section History Expansion
@cindex history expansion
The History library provides a history expansion feature that is similar
to the history expansion provided by @code{csh}. This section
describes the syntax used to manipulate the history information.
History expansions introduce words from the history list into
the input stream, making it easy to repeat commands, insert the
arguments to a previous command into the current input line, or
fix errors in previous commands quickly.
History expansion takes place in two parts. The first is to determine
which line from the history list should be used during substitution.
The second is to select portions of that line for inclusion into the
current one. The line selected from the history is called the
@dfn{event}, and the portions of that line that are acted upon are
called @dfn{words}. Various @dfn{modifiers} are available to manipulate
the selected words. The line is broken into words in the same fashion
that Bash does, so that several words
surrounded by quotes are considered one word.
History expansions are introduced by the appearance of the
history expansion character, which is @samp{!} by default.
@ifset BashFeatures
Only @samp{\} and @samp{'} may be used to escape the history expansion
character.
@end ifset
@ifset BashFeatures
Several shell options settable with the @code{shopt}
builtin (@pxref{Bash Builtins}) may be used to tailor
the behavior of history expansion. If the
@code{histverify} shell option is enabled, and Readline
is being used, history substitutions are not immediately passed to
the shell parser.
Instead, the expanded line is reloaded into the Readline
editing buffer for further modification.
If Readline is being used, and the @code{histreedit}
shell option is enabled, a failed history expansion will be
reloaded into the Readline editing buffer for correction.
The @option{-p} option to the @code{history} builtin command
may be used to see what a history expansion will do before using it.
The @option{-s} option to the @code{history} builtin may be used to
add commands to the end of the history list without actually executing
them, so that they are available for subsequent recall.
This is most useful in conjunction with Readline.
The shell allows control of the various characters used by the
history expansion mechanism with the @code{histchars} variable,
as explained above (@pxref{Bash Variables}). The shell uses
the history comment character to mark history timestamps when
writing the history file.
@end ifset
@menu
* Event Designators:: How to specify which history line to use.
* Word Designators:: Specifying which words are of interest.
* Modifiers:: Modifying the results of substitution.
@end menu
@node Event Designators
@subsection Event Designators
@cindex event designators
An event designator is a reference to a command line entry in the
history list.
Unless the reference is absolute, events are relative to the current
position in the history list.
@cindex history events
@table @asis
@item @code{!}
@ifset BashFeatures
Start a history substitution, except when followed by a space, tab,
the end of the line, @samp{=} or @samp{(} (when the
@code{extglob} shell option is enabled using the @code{shopt} builtin).
@end ifset
@ifclear BashFeatures
Start a history substitution, except when followed by a space, tab,
the end of the line, or @samp{=}.
@end ifclear
@item @code{!@var{n}}
Refer to command line @var{n}.
@item @code{!-@var{n}}
Refer to the command @var{n} lines back.
@item @code{!!}
Refer to the previous command. This is a synonym for @samp{!-1}.
@item @code{!@var{string}}
Refer to the most recent command
preceding the current position in the history list
starting with @var{string}.
@item @code{!?@var{string}[?]}
Refer to the most recent command
preceding the current position in the history list
containing @var{string}.
The trailing
@samp{?} may be omitted if the @var{string} is followed immediately by
a newline.
@item @code{^@var{string1}^@var{string2}^}
Quick Substitution. Repeat the last command, replacing @var{string1}
with @var{string2}. Equivalent to
@code{!!:s/@var{string1}/@var{string2}/}.
@item @code{!#}
The entire command line typed so far.
@end table
@node Word Designators
@subsection Word Designators
Word designators are used to select desired words from the event.
A @samp{:} separates the event specification from the word designator. It
may be omitted if the word designator begins with a @samp{^}, @samp{$},
@samp{*}, @samp{-}, or @samp{%}. Words are numbered from the beginning
of the line, with the first word being denoted by 0 (zero). Words are
inserted into the current line separated by single spaces.
@need 0.75
For example,
@table @code
@item !!
designates the preceding command. When you type this, the preceding
command is repeated in toto.
@item !!:$
designates the last argument of the preceding command. This may be
shortened to @code{!$}.
@item !fi:2
designates the second argument of the most recent command starting with
the letters @code{fi}.
@end table
@need 0.75
Here are the word designators:
@table @code
@item 0 (zero)
The @code{0}th word. For many applications, this is the command word.
@item @var{n}
The @var{n}th word.
@item ^
The first argument; that is, word 1.
@item $
The last argument.
@item %
The word matched by the most recent @samp{?@var{string}?} search.
@item @var{x}-@var{y}
A range of words; @samp{-@var{y}} abbreviates @samp{0-@var{y}}.
@item *
All of the words, except the @code{0}th. This is a synonym for @samp{1-$}.
It is not an error to use @samp{*} if there is just one word in the event;
the empty string is returned in that case.
@item @var{x}*
Abbreviates @samp{@var{x}-$}
@item @var{x}-
Abbreviates @samp{@var{x}-$} like @samp{@var{x}*}, but omits the last word.
@end table
If a word designator is supplied without an event specification, the
previous command is used as the event.
@node Modifiers
@subsection Modifiers
After the optional word designator, you can add a sequence of one or more
of the following modifiers, each preceded by a @samp{:}.
@table @code
@item h
Remove a trailing pathname component, leaving only the head.
@item t
Remove all leading pathname components, leaving the tail.
@item r
Remove a trailing suffix of the form @samp{.@var{suffix}}, leaving
the basename.
@item e
Remove all but the trailing suffix.
@item p
Print the new command but do not execute it.
@ifset BashFeatures
@item q
Quote the substituted words, escaping further substitutions.
@item x
Quote the substituted words as with @samp{q},
but break into words at spaces, tabs, and newlines.
@end ifset
@item s/@var{old}/@var{new}/
Substitute @var{new} for the first occurrence of @var{old} in the
event line. Any delimiter may be used in place of @samp{/}.
The delimiter may be quoted in @var{old} and @var{new}
with a single backslash. If @samp{&} appears in @var{new},
it is replaced by @var{old}. A single backslash will quote
the @samp{&}. The final delimiter is optional if it is the last
character on the input line.
@item &
Repeat the previous substitution.
@item g
@itemx a
Cause changes to be applied over the entire event line. Used in
conjunction with @samp{s}, as in @code{gs/@var{old}/@var{new}/},
or with @samp{&}.
@item G
Apply the following @samp{s} modifier once to each word in the event.
@end table
lib/readline/doc/readline.3
+1 -1
View File
@@ -8,7 +8,7 @@
.\"
.\" Last Change: Thu Apr 22 18:59:21 EDT 2010
.\"
.TH READLINE 3 "2010 April 22" "GNU Readline 6.1"
.TH READLINE 3 "2010 April 22" "GNU Readline 6.2"
.\"
.\" File Name macro. This used to be `.PN', for Path Name,
.\" but Sun doesn't seem to like that very much.
lib/readline/doc/readline.3~
+1 -1
View File
@@ -8,7 +8,7 @@
.\"
.\" Last Change: Thu Apr 22 18:59:21 EDT 2010
.\"
.TH READLINE 3 "2009 April 22" "GNU Readline 6.1"
.TH READLINE 3 "2010 April 22" "GNU Readline 6.1"
.\"
.\" File Name macro. This used to be `.PN', for Path Name,
.\" but Sun doesn't seem to like that very much.
lib/readline/doc/rltech.texi
+1 -1
View File
@@ -7,7 +7,7 @@ This document describes the GNU Readline Library, a utility for aiding
in the consistency of user interface across discrete programs that need
to provide a command line interface.
Copyright (C) 1988-2007 Free Software Foundation, Inc.
Copyright (C) 1988--2010 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
lib/readline/doc/rluserman.texi
+1 -1
View File
@@ -12,7 +12,7 @@ This manual describes the end user interface of the GNU Readline Library
consistency of user interface across discrete programs which provide
a command line interface.
Copyright @copyright{} 1988--2009 Free Software Foundation, Inc.
Copyright @copyright{} 1988--2010 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
lib/readline/doc/rluserman.texi~
+83
View File
@@ -0,0 +1,83 @@
\input texinfo @c -*-texinfo-*-
@comment %**start of header (This is for running Texinfo on a region.)
@setfilename rluserman.info
@settitle GNU Readline Library
@comment %**end of header (This is for running Texinfo on a region.)
@include version.texi
@copying
This manual describes the end user interface of the GNU Readline Library
(version @value{VERSION}, @value{UPDATED}), a library which aids in the
consistency of user interface across discrete programs which provide
a command line interface.
Copyright @copyright{} 1988--2009 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
are preserved on all copies.
@quotation
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, with the Front-Cover texts being ``A GNU Manual'',
and with the Back-Cover Texts as in (a) below. A copy of the license is
included in the section entitled ``GNU Free Documentation License''.
(a) The FSF's Back-Cover Text is: You are free to copy and modify
this GNU manual. Buying copies from GNU Press supports the FSF in
developing GNU and promoting software freedom.''
@end quotation
@end copying
@dircategory Libraries
@direntry
* RLuserman: (rluserman). The GNU readline library User's Manual.
@end direntry
@titlepage
@title GNU Readline Library User Interface
@subtitle Edition @value{EDITION}, for @code{Readline Library} Version @value{VERSION}.
@subtitle @value{UPDATED-MONTH}
@author Chet Ramey, Case Western Reserve University
@author Brian Fox, Free Software Foundation
@page
@vskip 0pt plus 1filll
@insertcopying
@sp 1
Published by the Free Software Foundation @*
59 Temple Place, Suite 330, @*
Boston, MA 02111-1307 @*
USA @*
@end titlepage
@contents
@ifnottex
@node Top
@top GNU Readline Library
This document describes the end user interface of the GNU Readline Library,
a utility which aids in the consistency of user interface across discrete
programs which provide a command line interface.
@menu
* Command Line Editing:: GNU Readline User's Manual.
* GNU Free Documentation License:: License for copying this manual.
@end menu
@end ifnottex
@include rluser.texi
@node GNU Free Documentation License
@appendix GNU Free Documentation License
@include fdl.texi
@bye
lib/readline/doc/version.texi
+5 -5
View File
@@ -2,9 +2,9 @@
Copyright (C) 1988-2010 Free Software Foundation, Inc.
@end ignore
@set EDITION 6.1
@set VERSION 6.1
@set UPDATED May 292010
@set UPDATED-MONTH May 2010
@set EDITION 6.2
@set VERSION 6.2
@set UPDATED August 12 2010
@set UPDATED-MONTH August 2010
@set LASTCHANGE Sat May 29 17:14:10 EDT 2010
@set LASTCHANGE Thu Aug 12 22:24:28 EDT 2010
lib/readline/doc/version.texi~
+5 -5
View File
@@ -2,9 +2,9 @@
Copyright (C) 1988-2010 Free Software Foundation, Inc.
@end ignore
@set EDITION 6.1
@set VERSION 6.1
@set UPDATED April 22 2010
@set UPDATED-MONTH April 2010
@set EDITION 6.2
@set VERSION 6.2
@set UPDATED August 3 2010
@set UPDATED-MONTH August 2010
@set LASTCHANGE Thu Apr 22 18:59:44 EDT 2010
@set LASTCHANGE Tue Aug 3 15:30:05 EDT 2010
lib/readline/rltty.c
+2 -2
View File
@@ -604,7 +604,7 @@ rl_prep_terminal (meta_flag)
/* Try to keep this function from being INTerrupted. */
_rl_block_sigint ();
tty = fileno (rl_instream);
tty = rl_instream ? fileno (rl_instream) : fileno (stdin);
if (get_tty_settings (tty, &tio) < 0)
{
@@ -678,7 +678,7 @@ rl_deprep_terminal ()
/* Try to keep this function from being interrupted. */
_rl_block_sigint ();
tty = fileno (rl_instream);
tty = rl_instream ? fileno (rl_instream) : fileno (stdout);
if (_rl_enable_keypad)
_rl_control_keypad (0);
lib/readline/rltty.c~
+975
View File
@@ -0,0 +1,975 @@
/* rltty.c -- functions to prepare and restore the terminal for readline's
use. */
/* Copyright (C) 1992-2005 Free Software Foundation, Inc.
This file is part of the GNU Readline Library (Readline), a library
for reading lines of text with interactive input and history editing.
Readline is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Readline 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Readline. If not, see <http://www.gnu.org/licenses/>.
*/
#define READLINE_LIBRARY
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif
#include <sys/types.h>
#include <signal.h>
#include <errno.h>
#include <stdio.h>
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include "rldefs.h"
#if defined (GWINSZ_IN_SYS_IOCTL)
# include <sys/ioctl.h>
#endif /* GWINSZ_IN_SYS_IOCTL */
#include "rltty.h"
#include "readline.h"
#include "rlprivate.h"
#if !defined (errno)
extern int errno;
#endif /* !errno */
rl_vintfunc_t *rl_prep_term_function = rl_prep_terminal;
rl_voidfunc_t *rl_deprep_term_function = rl_deprep_terminal;
static void set_winsize PARAMS((int));
/* **************************************************************** */
/* */
/* Saving and Restoring the TTY */
/* */
/* **************************************************************** */
/* Non-zero means that the terminal is in a prepped state. */
static int terminal_prepped;
static _RL_TTY_CHARS _rl_tty_chars, _rl_last_tty_chars;
/* If non-zero, means that this process has called tcflow(fd, TCOOFF)
and output is suspended. */
#if defined (__ksr1__)
static int ksrflow;
#endif
/* Dummy call to force a backgrounded readline to stop before it tries
to get the tty settings. */
static void
set_winsize (tty)
int tty;
{
#if defined (TIOCGWINSZ)
struct winsize w;
if (ioctl (tty, TIOCGWINSZ, &w) == 0)
(void) ioctl (tty, TIOCSWINSZ, &w);
#endif /* TIOCGWINSZ */
}
#if defined (NO_TTY_DRIVER)
/* Nothing */
#elif defined (NEW_TTY_DRIVER)
/* Values for the `flags' field of a struct bsdtty. This tells which
elements of the struct bsdtty have been fetched from the system and
are valid. */
#define SGTTY_SET 0x01
#define LFLAG_SET 0x02
#define TCHARS_SET 0x04
#define LTCHARS_SET 0x08
struct bsdtty {
struct sgttyb sgttyb; /* Basic BSD tty driver information. */
int lflag; /* Local mode flags, like LPASS8. */
#if defined (TIOCGETC)
struct tchars tchars; /* Terminal special characters, including ^S and ^Q. */
#endif
#if defined (TIOCGLTC)
struct ltchars ltchars; /* 4.2 BSD editing characters */
#endif
int flags; /* Bitmap saying which parts of the struct are valid. */
};
#define TIOTYPE struct bsdtty
static TIOTYPE otio;
static void save_tty_chars PARAMS((TIOTYPE *));
static int _get_tty_settings PARAMS((int, TIOTYPE *));
static int get_tty_settings PARAMS((int, TIOTYPE *));
static int _set_tty_settings PARAMS((int, TIOTYPE *));
static int set_tty_settings PARAMS((int, TIOTYPE *));
static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *));
static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t));
static void
save_tty_chars (tiop)
TIOTYPE *tiop;
{
_rl_last_tty_chars = _rl_tty_chars;
if (tiop->flags & SGTTY_SET)
{
_rl_tty_chars.t_erase = tiop->sgttyb.sg_erase;
_rl_tty_chars.t_kill = tiop->sgttyb.sg_kill;
}
if (tiop->flags & TCHARS_SET)
{
_rl_intr_char = _rl_tty_chars.t_intr = tiop->tchars.t_intrc;
_rl_quit_char = _rl_tty_chars.t_quit = tiop->tchars.t_quitc;
_rl_tty_chars.t_start = tiop->tchars.t_startc;
_rl_tty_chars.t_stop = tiop->tchars.t_stopc;
_rl_tty_chars.t_eof = tiop->tchars.t_eofc;
_rl_tty_chars.t_eol = '\n';
_rl_tty_chars.t_eol2 = tiop->tchars.t_brkc;
}
if (tiop->flags & LTCHARS_SET)
{
_rl_susp_char = _rl_tty_chars.t_susp = tiop->ltchars.t_suspc;
_rl_tty_chars.t_dsusp = tiop->ltchars.t_dsuspc;
_rl_tty_chars.t_reprint = tiop->ltchars.t_rprntc;
_rl_tty_chars.t_flush = tiop->ltchars.t_flushc;
_rl_tty_chars.t_werase = tiop->ltchars.t_werasc;
_rl_tty_chars.t_lnext = tiop->ltchars.t_lnextc;
}
_rl_tty_chars.t_status = -1;
}
static int
get_tty_settings (tty, tiop)
int tty;
TIOTYPE *tiop;
{
set_winsize (tty);
tiop->flags = tiop->lflag = 0;
errno = 0;
if (ioctl (tty, TIOCGETP, &(tiop->sgttyb)) < 0)
return -1;
tiop->flags |= SGTTY_SET;
#if defined (TIOCLGET)
if (ioctl (tty, TIOCLGET, &(tiop->lflag)) == 0)
tiop->flags |= LFLAG_SET;
#endif
#if defined (TIOCGETC)
if (ioctl (tty, TIOCGETC, &(tiop->tchars)) == 0)
tiop->flags |= TCHARS_SET;
#endif
#if defined (TIOCGLTC)
if (ioctl (tty, TIOCGLTC, &(tiop->ltchars)) == 0)
tiop->flags |= LTCHARS_SET;
#endif
return 0;
}
static int
set_tty_settings (tty, tiop)
int tty;
TIOTYPE *tiop;
{
if (tiop->flags & SGTTY_SET)
{
ioctl (tty, TIOCSETN, &(tiop->sgttyb));
tiop->flags &= ~SGTTY_SET;
}
_rl_echoing_p = 1;
#if defined (TIOCLSET)
if (tiop->flags & LFLAG_SET)
{
ioctl (tty, TIOCLSET, &(tiop->lflag));
tiop->flags &= ~LFLAG_SET;
}
#endif
#if defined (TIOCSETC)
if (tiop->flags & TCHARS_SET)
{
ioctl (tty, TIOCSETC, &(tiop->tchars));
tiop->flags &= ~TCHARS_SET;
}
#endif
#if defined (TIOCSLTC)
if (tiop->flags & LTCHARS_SET)
{
ioctl (tty, TIOCSLTC, &(tiop->ltchars));
tiop->flags &= ~LTCHARS_SET;
}
#endif
return 0;
}
static void
prepare_terminal_settings (meta_flag, oldtio, tiop)
int meta_flag;
TIOTYPE oldtio, *tiop;
{
_rl_echoing_p = (oldtio.sgttyb.sg_flags & ECHO);
_rl_echoctl = (oldtio.sgttyb.sg_flags & ECHOCTL);
/* Copy the original settings to the structure we're going to use for
our settings. */
tiop->sgttyb = oldtio.sgttyb;
tiop->lflag = oldtio.lflag;
#if defined (TIOCGETC)
tiop->tchars = oldtio.tchars;
#endif
#if defined (TIOCGLTC)
tiop->ltchars = oldtio.ltchars;
#endif
tiop->flags = oldtio.flags;
/* First, the basic settings to put us into character-at-a-time, no-echo
input mode. */
tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD);
tiop->sgttyb.sg_flags |= CBREAK;
/* If this terminal doesn't care how the 8th bit is used, then we can
use it for the meta-key. If only one of even or odd parity is
specified, then the terminal is using parity, and we cannot. */
#if !defined (ANYP)
# define ANYP (EVENP | ODDP)
#endif
if (((oldtio.sgttyb.sg_flags & ANYP) == ANYP) ||
((oldtio.sgttyb.sg_flags & ANYP) == 0))
{
tiop->sgttyb.sg_flags |= ANYP;
/* Hack on local mode flags if we can. */
#if defined (TIOCLGET)
# if defined (LPASS8)
tiop->lflag |= LPASS8;
# endif /* LPASS8 */
#endif /* TIOCLGET */
}
#if defined (TIOCGETC)
# if defined (USE_XON_XOFF)
/* Get rid of terminal output start and stop characters. */
tiop->tchars.t_stopc = -1; /* C-s */
tiop->tchars.t_startc = -1; /* C-q */
/* If there is an XON character, bind it to restart the output. */
if (oldtio.tchars.t_startc != -1)
rl_bind_key (oldtio.tchars.t_startc, rl_restart_output);
# endif /* USE_XON_XOFF */
/* If there is an EOF char, bind _rl_eof_char to it. */
if (oldtio.tchars.t_eofc != -1)
_rl_eof_char = oldtio.tchars.t_eofc;
# if defined (NO_KILL_INTR)
/* Get rid of terminal-generated SIGQUIT and SIGINT. */
tiop->tchars.t_quitc = -1; /* C-\ */
tiop->tchars.t_intrc = -1; /* C-c */
# endif /* NO_KILL_INTR */
#endif /* TIOCGETC */
#if defined (TIOCGLTC)
/* Make the interrupt keys go away. Just enough to make people happy. */
tiop->ltchars.t_dsuspc = -1; /* C-y */
tiop->ltchars.t_lnextc = -1; /* C-v */
#endif /* TIOCGLTC */
}
#else /* !defined (NEW_TTY_DRIVER) */
#if !defined (VMIN)
# define VMIN VEOF
#endif
#if !defined (VTIME)
# define VTIME VEOL
#endif
#if defined (TERMIOS_TTY_DRIVER)
# define TIOTYPE struct termios
# define DRAIN_OUTPUT(fd) tcdrain (fd)
# define GETATTR(tty, tiop) (tcgetattr (tty, tiop))
# ifdef M_UNIX
# define SETATTR(tty, tiop) (tcsetattr (tty, TCSANOW, tiop))
# else
# define SETATTR(tty, tiop) (tcsetattr (tty, TCSADRAIN, tiop))
# endif /* !M_UNIX */
#else
# define TIOTYPE struct termio
# define DRAIN_OUTPUT(fd)
# define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop))
# define SETATTR(tty, tiop) (ioctl (tty, TCSETAW, tiop))
#endif /* !TERMIOS_TTY_DRIVER */
static TIOTYPE otio;
static void save_tty_chars PARAMS((TIOTYPE *));
static int _get_tty_settings PARAMS((int, TIOTYPE *));
static int get_tty_settings PARAMS((int, TIOTYPE *));
static int _set_tty_settings PARAMS((int, TIOTYPE *));
static int set_tty_settings PARAMS((int, TIOTYPE *));
static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *));
static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t));
static void _rl_bind_tty_special_chars PARAMS((Keymap, TIOTYPE));
#if defined (FLUSHO)
# define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO)
#else
# define OUTPUT_BEING_FLUSHED(tp) 0
#endif
static void
save_tty_chars (tiop)
TIOTYPE *tiop;
{
_rl_last_tty_chars = _rl_tty_chars;
_rl_tty_chars.t_eof = tiop->c_cc[VEOF];
_rl_tty_chars.t_eol = tiop->c_cc[VEOL];
#ifdef VEOL2
_rl_tty_chars.t_eol2 = tiop->c_cc[VEOL2];
#endif
_rl_tty_chars.t_erase = tiop->c_cc[VERASE];
#ifdef VWERASE
_rl_tty_chars.t_werase = tiop->c_cc[VWERASE];
#endif
_rl_tty_chars.t_kill = tiop->c_cc[VKILL];
#ifdef VREPRINT
_rl_tty_chars.t_reprint = tiop->c_cc[VREPRINT];
#endif
_rl_intr_char = _rl_tty_chars.t_intr = tiop->c_cc[VINTR];
_rl_quit_char = _rl_tty_chars.t_quit = tiop->c_cc[VQUIT];
#ifdef VSUSP
_rl_susp_char = _rl_tty_chars.t_susp = tiop->c_cc[VSUSP];
#endif
#ifdef VDSUSP
_rl_tty_chars.t_dsusp = tiop->c_cc[VDSUSP];
#endif
#ifdef VSTART
_rl_tty_chars.t_start = tiop->c_cc[VSTART];
#endif
#ifdef VSTOP
_rl_tty_chars.t_stop = tiop->c_cc[VSTOP];
#endif
#ifdef VLNEXT
_rl_tty_chars.t_lnext = tiop->c_cc[VLNEXT];
#endif
#ifdef VDISCARD
_rl_tty_chars.t_flush = tiop->c_cc[VDISCARD];
#endif
#ifdef VSTATUS
_rl_tty_chars.t_status = tiop->c_cc[VSTATUS];
#endif
}
#if defined (_AIX) || defined (_AIX41)
/* Currently this is only used on AIX */
static void
rltty_warning (msg)
char *msg;
{
_rl_errmsg ("warning: %s", msg);
}
#endif
#if defined (_AIX)
void
setopost(tp)
TIOTYPE *tp;
{
if ((tp->c_oflag & OPOST) == 0)
{
_rl_errmsg ("warning: turning on OPOST for terminal\r");
tp->c_oflag |= OPOST|ONLCR;
}
}
#endif
static int
_get_tty_settings (tty, tiop)
int tty;
TIOTYPE *tiop;
{
int ioctl_ret;
while (1)
{
ioctl_ret = GETATTR (tty, tiop);
if (ioctl_ret < 0)
{
if (errno != EINTR)
return -1;
else
continue;
}
if (OUTPUT_BEING_FLUSHED (tiop))
{
#if defined (FLUSHO)
_rl_errmsg ("warning: turning off output flushing");
tiop->c_lflag &= ~FLUSHO;
break;
#else
continue;
#endif
}
break;
}
return 0;
}
static int
get_tty_settings (tty, tiop)
int tty;
TIOTYPE *tiop;
{
set_winsize (tty);
errno = 0;
if (_get_tty_settings (tty, tiop) < 0)
return -1;
#if defined (_AIX)
setopost(tiop);
#endif
return 0;
}
static int
_set_tty_settings (tty, tiop)
int tty;
TIOTYPE *tiop;
{
while (SETATTR (tty, tiop) < 0)
{
if (errno != EINTR)
return -1;
errno = 0;
}
return 0;
}
static int
set_tty_settings (tty, tiop)
int tty;
TIOTYPE *tiop;
{
if (_set_tty_settings (tty, tiop) < 0)
return -1;
#if 0
#if defined (TERMIOS_TTY_DRIVER)
# if defined (__ksr1__)
if (ksrflow)
{
ksrflow = 0;
tcflow (tty, TCOON);
}
# else /* !ksr1 */
tcflow (tty, TCOON); /* Simulate a ^Q. */
# endif /* !ksr1 */
#else
ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */
#endif /* !TERMIOS_TTY_DRIVER */
#endif /* 0 */
return 0;
}
static void
prepare_terminal_settings (meta_flag, oldtio, tiop)
int meta_flag;
TIOTYPE oldtio, *tiop;
{
_rl_echoing_p = (oldtio.c_lflag & ECHO);
#if defined (ECHOCTL)
_rl_echoctl = (oldtio.c_lflag & ECHOCTL);
#endif
tiop->c_lflag &= ~(ICANON | ECHO);
if ((unsigned char) oldtio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE)
_rl_eof_char = oldtio.c_cc[VEOF];
#if defined (USE_XON_XOFF)
#if defined (IXANY)
tiop->c_iflag &= ~(IXON | IXOFF | IXANY);
#else
/* `strict' Posix systems do not define IXANY. */
tiop->c_iflag &= ~(IXON | IXOFF);
#endif /* IXANY */
#endif /* USE_XON_XOFF */
/* Only turn this off if we are using all 8 bits. */
if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag)
tiop->c_iflag &= ~(ISTRIP | INPCK);
/* Make sure we differentiate between CR and NL on input. */
tiop->c_iflag &= ~(ICRNL | INLCR);
#if !defined (HANDLE_SIGNALS)
tiop->c_lflag &= ~ISIG;
#else
tiop->c_lflag |= ISIG;
#endif
tiop->c_cc[VMIN] = 1;
tiop->c_cc[VTIME] = 0;
#if defined (FLUSHO)
if (OUTPUT_BEING_FLUSHED (tiop))
{
tiop->c_lflag &= ~FLUSHO;
oldtio.c_lflag &= ~FLUSHO;
}
#endif
/* Turn off characters that we need on Posix systems with job control,
just to be sure. This includes ^Y and ^V. This should not really
be necessary. */
#if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE)
#if defined (VLNEXT)
tiop->c_cc[VLNEXT] = _POSIX_VDISABLE;
#endif
#if defined (VDSUSP)
tiop->c_cc[VDSUSP] = _POSIX_VDISABLE;
#endif
#endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */
}
#endif /* !NEW_TTY_DRIVER */
/* Put the terminal in CBREAK mode so that we can detect key presses. */
#if defined (NO_TTY_DRIVER)
void
rl_prep_terminal (meta_flag)
int meta_flag;
{
_rl_echoing_p = 1;
}
void
rl_deprep_terminal ()
{
}
#else /* ! NO_TTY_DRIVER */
void
rl_prep_terminal (meta_flag)
int meta_flag;
{
int tty;
TIOTYPE tio;
if (terminal_prepped)
return;
/* Try to keep this function from being INTerrupted. */
_rl_block_sigint ();
tty = fileno (rl_instream);
if (get_tty_settings (tty, &tio) < 0)
{
#if defined (ENOTSUP)
/* MacOS X and Linux, at least, lie about the value of errno if
tcgetattr fails. */
if (errno == ENOTTY || errno == EINVAL || errno == ENOTSUP)
#else
if (errno == ENOTTY || errno == EINVAL)
#endif
_rl_echoing_p = 1; /* XXX */
_rl_release_sigint ();
return;
}
otio = tio;
if (_rl_bind_stty_chars)
{
#if defined (VI_MODE)
/* If editing in vi mode, make sure we restore the bindings in the
insertion keymap no matter what keymap we ended up in. */
if (rl_editing_mode == vi_mode)
rl_tty_unset_default_bindings (vi_insertion_keymap);
else
#endif
rl_tty_unset_default_bindings (_rl_keymap);
}
save_tty_chars (&otio);
RL_SETSTATE(RL_STATE_TTYCSAVED);
if (_rl_bind_stty_chars)
{
#if defined (VI_MODE)
/* If editing in vi mode, make sure we set the bindings in the
insertion keymap no matter what keymap we ended up in. */
if (rl_editing_mode == vi_mode)
_rl_bind_tty_special_chars (vi_insertion_keymap, tio);
else
#endif
_rl_bind_tty_special_chars (_rl_keymap, tio);
}
prepare_terminal_settings (meta_flag, otio, &tio);
if (set_tty_settings (tty, &tio) < 0)
{
_rl_release_sigint ();
return;
}
if (_rl_enable_keypad)
_rl_control_keypad (1);
fflush (rl_outstream);
terminal_prepped = 1;
RL_SETSTATE(RL_STATE_TERMPREPPED);
_rl_release_sigint ();
}
/* Restore the terminal's normal settings and modes. */
void
rl_deprep_terminal ()
{
int tty;
if (!terminal_prepped)
return;
/* Try to keep this function from being interrupted. */
_rl_block_sigint ();
tty = fileno (rl_instream);
if (_rl_enable_keypad)
_rl_control_keypad (0);
fflush (rl_outstream);
if (set_tty_settings (tty, &otio) < 0)
{
_rl_release_sigint ();
return;
}
terminal_prepped = 0;
RL_UNSETSTATE(RL_STATE_TERMPREPPED);
_rl_release_sigint ();
}
#endif /* !NO_TTY_DRIVER */
/* **************************************************************** */
/* */
/* Bogus Flow Control */
/* */
/* **************************************************************** */
int
rl_restart_output (count, key)
int count, key;
{
#if defined (__MINGW32__)
return 0;
#else /* !__MING32__ */
int fildes = fileno (rl_outstream);
#if defined (TIOCSTART)
#if defined (apollo)
ioctl (&fildes, TIOCSTART, 0);
#else
ioctl (fildes, TIOCSTART, 0);
#endif /* apollo */
#else /* !TIOCSTART */
# if defined (TERMIOS_TTY_DRIVER)
# if defined (__ksr1__)
if (ksrflow)
{
ksrflow = 0;
tcflow (fildes, TCOON);
}
# else /* !ksr1 */
tcflow (fildes, TCOON); /* Simulate a ^Q. */
# endif /* !ksr1 */
# else /* !TERMIOS_TTY_DRIVER */
# if defined (TCXONC)
ioctl (fildes, TCXONC, TCOON);
# endif /* TCXONC */
# endif /* !TERMIOS_TTY_DRIVER */
#endif /* !TIOCSTART */
return 0;
#endif /* !__MINGW32__ */
}
int
rl_stop_output (count, key)
int count, key;
{
#if defined (__MINGW32__)
return 0;
#else
int fildes = fileno (rl_instream);
#if defined (TIOCSTOP)
# if defined (apollo)
ioctl (&fildes, TIOCSTOP, 0);
# else
ioctl (fildes, TIOCSTOP, 0);
# endif /* apollo */
#else /* !TIOCSTOP */
# if defined (TERMIOS_TTY_DRIVER)
# if defined (__ksr1__)
ksrflow = 1;
# endif /* ksr1 */
tcflow (fildes, TCOOFF);
# else
# if defined (TCXONC)
ioctl (fildes, TCXONC, TCOON);
# endif /* TCXONC */
# endif /* !TERMIOS_TTY_DRIVER */
#endif /* !TIOCSTOP */
return 0;
#endif /* !__MINGW32__ */
}
/* **************************************************************** */
/* */
/* Default Key Bindings */
/* */
/* **************************************************************** */
#if !defined (NO_TTY_DRIVER)
#define SET_SPECIAL(sc, func) set_special_char(kmap, &ttybuff, sc, func)
#endif
#if defined (NO_TTY_DRIVER)
#define SET_SPECIAL(sc, func)
#define RESET_SPECIAL(c)
#elif defined (NEW_TTY_DRIVER)
static void
set_special_char (kmap, tiop, sc, func)
Keymap kmap;
TIOTYPE *tiop;
int sc;
rl_command_func_t *func;
{
if (sc != -1 && kmap[(unsigned char)sc].type == ISFUNC)
kmap[(unsigned char)sc].function = func;
}
#define RESET_SPECIAL(c) \
if (c != -1 && kmap[(unsigned char)c].type == ISFUNC) \
kmap[(unsigned char)c].function = rl_insert;
static void
_rl_bind_tty_special_chars (kmap, ttybuff)
Keymap kmap;
TIOTYPE ttybuff;
{
if (ttybuff.flags & SGTTY_SET)
{
SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout);
SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard);
}
# if defined (TIOCGLTC)
if (ttybuff.flags & LTCHARS_SET)
{
SET_SPECIAL (ttybuff.ltchars.t_werasc, rl_unix_word_rubout);
SET_SPECIAL (ttybuff.ltchars.t_lnextc, rl_quoted_insert);
}
# endif /* TIOCGLTC */
}
#else /* !NEW_TTY_DRIVER */
static void
set_special_char (kmap, tiop, sc, func)
Keymap kmap;
TIOTYPE *tiop;
int sc;
rl_command_func_t *func;
{
unsigned char uc;
uc = tiop->c_cc[sc];
if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC)
kmap[uc].function = func;
}
/* used later */
#define RESET_SPECIAL(uc) \
if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \
kmap[uc].function = rl_insert;
static void
_rl_bind_tty_special_chars (kmap, ttybuff)
Keymap kmap;
TIOTYPE ttybuff;
{
SET_SPECIAL (VERASE, rl_rubout);
SET_SPECIAL (VKILL, rl_unix_line_discard);
# if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER)
SET_SPECIAL (VLNEXT, rl_quoted_insert);
# endif /* VLNEXT && TERMIOS_TTY_DRIVER */
# if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER)
SET_SPECIAL (VWERASE, rl_unix_word_rubout);
# endif /* VWERASE && TERMIOS_TTY_DRIVER */
}
#endif /* !NEW_TTY_DRIVER */
/* Set the system's default editing characters to their readline equivalents
in KMAP. Should be static, now that we have rl_tty_set_default_bindings. */
void
rltty_set_default_bindings (kmap)
Keymap kmap;
{
#if !defined (NO_TTY_DRIVER)
TIOTYPE ttybuff;
int tty;
tty = fileno (rl_instream);
if (get_tty_settings (tty, &ttybuff) == 0)
_rl_bind_tty_special_chars (kmap, ttybuff);
#endif
}
/* New public way to set the system default editing chars to their readline
equivalents. */
void
rl_tty_set_default_bindings (kmap)
Keymap kmap;
{
rltty_set_default_bindings (kmap);
}
/* Rebind all of the tty special chars that readline worries about back
to self-insert. Call this before saving the current terminal special
chars with save_tty_chars(). This only works on POSIX termios or termio
systems. */
void
rl_tty_unset_default_bindings (kmap)
Keymap kmap;
{
/* Don't bother before we've saved the tty special chars at least once. */
if (RL_ISSTATE(RL_STATE_TTYCSAVED) == 0)
return;
RESET_SPECIAL (_rl_tty_chars.t_erase);
RESET_SPECIAL (_rl_tty_chars.t_kill);
# if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER)
RESET_SPECIAL (_rl_tty_chars.t_lnext);
# endif /* VLNEXT && TERMIOS_TTY_DRIVER */
# if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER)
RESET_SPECIAL (_rl_tty_chars.t_werase);
# endif /* VWERASE && TERMIOS_TTY_DRIVER */
}
#if defined (HANDLE_SIGNALS)
#if defined (NEW_TTY_DRIVER) || defined (NO_TTY_DRIVER)
int
_rl_disable_tty_signals ()
{
return 0;
}
int
_rl_restore_tty_signals ()
{
return 0;
}
#else
static TIOTYPE sigstty, nosigstty;
static int tty_sigs_disabled = 0;
int
_rl_disable_tty_signals ()
{
if (tty_sigs_disabled)
return 0;
if (_get_tty_settings (fileno (rl_instream), &sigstty) < 0)
return -1;
nosigstty = sigstty;
nosigstty.c_lflag &= ~ISIG;
nosigstty.c_iflag &= ~IXON;
if (_set_tty_settings (fileno (rl_instream), &nosigstty) < 0)
return (_set_tty_settings (fileno (rl_instream), &sigstty));
tty_sigs_disabled = 1;
return 0;
}
int
_rl_restore_tty_signals ()
{
int r;
if (tty_sigs_disabled == 0)
return 0;
r = _set_tty_settings (fileno (rl_instream), &sigstty);
if (r == 0)
tty_sigs_disabled = 0;
return r;
}
#endif /* !NEW_TTY_DRIVER */
#endif /* HANDLE_SIGNALS */
lib/readline/savestring.c
+5 -1
View File
@@ -33,5 +33,9 @@ char *
savestring (s)
const char *s;
{
return ((char *)strcpy ((char *)xmalloc (1 + strlen (s)), (s)));
char *ret;
ret = (char *)xmalloc (strlen (s) + 1);
strcpy (ret, s);
return ret;
}
lib/readline/savestring.c~
+37
View File
@@ -0,0 +1,37 @@
/* savestring.c - function version of savestring for backwards compatibility */
/* Copyright (C) 1998,2003 Free Software Foundation, Inc.
This file is part of the GNU Readline Library (Readline), a library
for reading lines of text with interactive input and history editing.
Readline is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Readline 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Readline. If not, see <http://www.gnu.org/licenses/>.
*/
#define READLINE_LIBRARY
#include <config.h>
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#include "xmalloc.h"
/* Backwards compatibility, now that savestring has been removed from
all `public' readline header files. */
char *
savestring (s)
const char *s;
{
return ((char *)strcpy ((char *)xmalloc (1 + strlen (s)), (s)));
}
lib/sh/casemod.c
+7
View File
@@ -111,6 +111,13 @@ sh_modcase (string, pat, flags)
mbstate_t state;
#endif
if (string == 0 || *string == 0)
{
ret = (char *)xmalloc (1);
ret[0] = '\0';
return ret;
}
#if defined (HANDLE_MULTIBYTE)
memset (&state, 0, sizeof (mbstate_t));
#endif
lib/sh/casemod.c~
+256
View File
@@ -0,0 +1,256 @@
/* casemod.c -- functions to change case of strings */
/* Copyright (C) 2008,2009 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <stdc.h>
#include <bashansi.h>
#include <bashintl.h>
#include <bashtypes.h>
#include <stdio.h>
#include <ctype.h>
#include <xmalloc.h>
#include <shmbutil.h>
#include <chartypes.h>
#include <glob/strmatch.h>
#define _to_wupper(wc) (iswlower (wc) ? towupper (wc) : (wc))
#define _to_wlower(wc) (iswupper (wc) ? towlower (wc) : (wc))
#if !defined (HANDLE_MULTIBYTE)
# define cval(s, i) ((s)[(i)])
# define iswalnum(c) (isalnum(c))
# define TOGGLE(x) (ISUPPER (x) ? tolower (x) : (TOUPPER (x)))
#else
# define TOGGLE(x) (iswupper (x) ? towlower (x) : (_to_wupper(x)))
#endif
/* These must agree with the defines in externs.h */
#define CASE_NOOP 0x0000
#define CASE_LOWER 0x0001
#define CASE_UPPER 0x0002
#define CASE_CAPITALIZE 0x0004
#define CASE_UNCAP 0x0008
#define CASE_TOGGLE 0x0010
#define CASE_TOGGLEALL 0x0020
#define CASE_UPFIRST 0x0040
#define CASE_LOWFIRST 0x0080
#define CASE_USEWORDS 0x1000 /* modify behavior to act on words in passed string */
extern char *substring __P((char *, int, int));
#if defined (HANDLE_MULTIBYTE)
static wchar_t
cval (s, i)
char *s;
int i;
{
size_t tmp;
wchar_t wc;
int l;
mbstate_t mps;
if (MB_CUR_MAX == 1)
return ((wchar_t)s[i]);
l = strlen (s);
if (i >= (l - 1))
return ((wchar_t)s[i]);
memset (&mps, 0, sizeof (mbstate_t));
tmp = mbrtowc (&wc, s + i, l - i, &mps);
if (MB_INVALIDCH (tmp) || MB_NULLWCH (tmp))
return ((wchar_t)s[i]);
return wc;
}
#endif
/* Modify the case of characters in STRING matching PAT based on the value of
FLAGS. If PAT is null, modify the case of each character */
char *
sh_modcase (string, pat, flags)
const char *string;
char *pat;
int flags;
{
int start, next, end;
int inword, c, nc, nop, match, usewords;
char *ret, *s;
wchar_t wc;
#if defined (HANDLE_MULTIBYTE)
wchar_t nwc;
char mb[MB_LEN_MAX+1];
int mlen;
size_t m;
mbstate_t state;
#endif
if (string == 0 || *string == 0)
{
#if 0
ret = (char *)xmalloc (1);
ret[0] = '\0';
return ret;
#else
extern char *savestring();
return (char *)savestring ("");
#endif
}
#if defined (HANDLE_MULTIBYTE)
memset (&state, 0, sizeof (mbstate_t));
#endif
start = 0;
end = strlen (string);
ret = (char *)xmalloc (end + 1);
strcpy (ret, string);
/* See if we are supposed to split on alphanumerics and operate on each word */
usewords = (flags & CASE_USEWORDS);
flags &= ~CASE_USEWORDS;
inword = 0;
while (start < end)
{
wc = cval (ret, start);
if (iswalnum (wc) == 0)
{
inword = 0;
ADVANCE_CHAR (ret, end, start);
continue;
}
if (pat)
{
next = start;
ADVANCE_CHAR (ret, end, next);
s = substring (ret, start, next);
match = strmatch (pat, s, FNM_EXTMATCH) != FNM_NOMATCH;
free (s);
if (match == 0)
{
start = next;
inword = 1;
continue;
}
}
/* XXX - for now, the toggling operators work on the individual
words in the string, breaking on alphanumerics. Should I
leave the capitalization operators to do that also? */
if (flags == CASE_CAPITALIZE)
{
if (usewords)
nop = inword ? CASE_LOWER : CASE_UPPER;
else
nop = (start > 0) ? CASE_LOWER : CASE_UPPER;
inword = 1;
}
else if (flags == CASE_UNCAP)
{
if (usewords)
nop = inword ? CASE_UPPER : CASE_LOWER;
else
nop = (start > 0) ? CASE_UPPER : CASE_LOWER;
inword = 1;
}
else if (flags == CASE_UPFIRST)
{
if (usewords)
nop = inword ? CASE_NOOP : CASE_UPPER;
else
nop = (start > 0) ? CASE_NOOP : CASE_UPPER;
inword = 1;
}
else if (flags == CASE_LOWFIRST)
{
if (usewords)
nop = inword ? CASE_NOOP : CASE_LOWER;
else
nop = (start > 0) ? CASE_NOOP : CASE_LOWER;
inword = 1;
}
else if (flags == CASE_TOGGLE)
{
nop = inword ? CASE_NOOP : CASE_TOGGLE;
inword = 1;
}
else
nop = flags;
if (MB_CUR_MAX == 1 || isascii (wc))
{
switch (nop)
{
default:
case CASE_NOOP: nc = wc; break;
case CASE_UPPER: nc = TOUPPER (wc); break;
case CASE_LOWER: nc = TOLOWER (wc); break;
case CASE_TOGGLEALL:
case CASE_TOGGLE: nc = TOGGLE (wc); break;
}
ret[start] = nc;
}
#if defined (HANDLE_MULTIBYTE)
else
{
m = mbrtowc (&wc, string + start, end - start, &state);
if (MB_INVALIDCH (m))
wc = (wchar_t)string[start];
else if (MB_NULLWCH (m))
wc = L'\0';
switch (nop)
{
default:
case CASE_NOOP: nwc = wc; break;
case CASE_UPPER: nwc = TOUPPER (wc); break;
case CASE_LOWER: nwc = TOLOWER (wc); break;
case CASE_TOGGLEALL:
case CASE_TOGGLE: nwc = TOGGLE (wc); break;
}
if (nwc != wc) /* just skip unchanged characters */
{
mlen = wcrtomb (mb, nwc, &state);
if (mlen > 0)
mb[mlen] = '\0';
/* Assume the same width */
strncpy (ret + start, mb, mlen);
}
}
#endif
/* This assumes that the upper and lower case versions are the same width. */
ADVANCE_CHAR (ret, end, start);
}
return ret;
}