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Enabled use of libedit as alternative to libreadline

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This commit is contained in:
Thomas Schmitt
2014-06-14 19:22:41 +00:00
parent ce022ecb3b
commit ca46040007
8 changed files with 340 additions and 39 deletions
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53
acinclude.m4
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@ -144,6 +144,56 @@ iconv_close(cd);
])
dnl LIBBURNIA_TRY_EDITLINE is by Thomas Schmitt, libburnia project
dnl It performs the actual test compilation for editline.
dnl Variable LIBS has to be set by the caller.
AC_DEFUN([LIBBURNIA_TRY_EDITLINE],
[
AC_TRY_LINK([
#include <ctype.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <histedit.h>],
[EditLine *editline_handle; History *editline_history; HistEvent ev; int count;
editline_handle= el_init("dummy", stdin, stdout, stderr);
el_set(editline_handle, EL_EDITOR, "emacs");
editline_history= history_init();
history(editline_history, &ev, H_SETSIZE, 1000);
el_gets(editline_handle, &count);
], [editline_test="yes"], [editline_test="no"]
)
])
dnl LIBBURNIA_ASSERT_EDITLINE is by Thomas Schmitt, libburnia project
dnl It disables xorriso editline if not all needed functions are present
AC_DEFUN([LIBBURNIA_ASSERT_EDITLINE],
[
if test x$XORRISO_ASSUME_EDITLINE = x
then
dnl Check for the essential gestures of xorriso/text_io.c
AC_MSG_CHECKING([for desired functions in libedit])
libburnia_save_LIBS="$LIBS"
LIBS="$LIBS -ledit"
LIBBURNIA_TRY_EDITLINE
if test x$editline_test = xno
then
LIBS="$libburnia_save_LIBS"
LIBS="$LIBS -ledit"
LIBBURNIA_TRY_EDITLINE
fi
if test x$editline_test = xno
then
READLINE_DEF=
LIBS="$libburnia_save_LIBS"
fi
AC_MSG_RESULT([$editline_test $editline_msg])
fi
])
dnl LIBBURNIA_TRY_READLINE is by Thomas Schmitt, libburnia project
dnl It performs the actual test compilation for readline.
dnl Variable LIBS has to be set by the caller.
@ -166,14 +216,13 @@ hl= history_list();
)
])
dnl LIBBURNIA_ASSERT_READLINE is by Thomas Schmitt, libburnia project
dnl It disables xorriso readline if not all needed functions are present
AC_DEFUN([LIBBURNIA_ASSERT_READLINE],
[
if test x$XORRISO_ASSUME_READLINE = x
then
dnl Check for the essential gestures of libisofs/util.c
dnl Check for the essential gestures of xorriso/text_io.c
AC_MSG_CHECKING([for desired functions in libreadline])
readline_msg=
libburnia_save_LIBS="$LIBS"

16
configure.ac
View File

@ -144,8 +144,24 @@ dnl The X= in the yes case prevents that -lreadline gets linked twice
else
READLINE_DEF=
fi
if test x$READLINE_DEF = x; then
AC_ARG_ENABLE(libedit,
[ --enable-libedit Enable use of libedit by xorriso if not libreadline, default=yes],
, enable_libedit=yes)
if test x$enable_libedit = xyes; then
dnl Check whether there is development and runtime support.
dnl If not, erase this macro which would enable use of el_*(), history*()
READLINE_DEF="-DXorriso_with_editlinE"
LIBBURNIA_ASSERT_EDITLINE
else
READLINE_DEF=
fi
fi
AC_SUBST(READLINE_DEF)
dnl ts A90329
dnl ACL and xattr do not need to be enabled in libisoburn or xorriso source
dnl but without AC_CHECK_LIB() xorriso will not be linked with -lacl .

8
xorriso/base_obj.c
View File

@ -3,7 +3,7 @@
/* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
Copyright 2007-2013 Thomas Schmitt, <scdbackup@gmx.net>
Copyright 2007-2014 Thomas Schmitt, <scdbackup@gmx.net>
Provided under GPL version 2 or later.
@ -111,6 +111,9 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
free(leafname);
return(-1);
}
/* Base initialization by actions which must not fail */
m->libs_are_started= 0;
strncpy(m->progname,progname,sizeof(m->progname)-1);
m->progname[sizeof(m->progname)-1]= 0;
@ -431,6 +434,9 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
m->info_text[0]= 0;
/* Here begin actions which might fail */
ret= Sfile_leafname(progname, leafname, 0);
if(ret<=0)
goto failure;

20
xorriso/configure_ac.txt
View File

@ -174,9 +174,29 @@ dnl The X= in the yes case prevents that -lreadline gets linked twice
else
READLINE_DEF=
fi
if test x$READLINE_DEF = x; then
AH_TEMPLATE([Xorriso_with_editlinE],
[Define to use libedit if not libreadline])
AC_ARG_ENABLE(libedit,
[ --enable-libedit Enable use of libedit by xorriso if not libreadline, default=yes],
, enable_libedit=yes)
if test x$enable_libedit = xyes; then
dnl Check whether there is development and runtime support.
dnl If not, erase this macro which would enable use of el_*(), history*()
READLINE_DEF="-DXorriso_with_editlinE"
LIBBURNIA_ASSERT_EDITLINE
else
READLINE_DEF=
fi
fi
if test x$READLINE_DEF = x-DXorriso_with_readlinE
then
AC_DEFINE([Xorriso_with_readlinE], [])
elif test x$READLINE_DEF = x-DXorriso_with_editlinE
then
AC_DEFINE([Xorriso_with_editlinE], [])
fi
AH_TEMPLATE([Libisofs_with_aaip_acL], [Define to use ACL capabilities])

6
xorriso/lib_mgt.c
View File

@ -1,7 +1,7 @@
/* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
Copyright 2007-2011 Thomas Schmitt, <scdbackup@gmx.net>
Copyright 2007-2014 Thomas Schmitt, <scdbackup@gmx.net>
Provided under GPL version 2 or later.
@ -929,10 +929,14 @@ int Xorriso_list_extras(struct XorrisO *xorriso, char *mode, int flag)
Xorriso_list_extras_result(xorriso, mode, "dvd_obs", 0);
sprintf(xorriso->result_line, "Readline : %s\n",
#ifdef Xorriso_with_editlinE
"yes , libedit");
#else
#ifdef Xorriso_with_readlinE
"yes");
#else
"no");
#endif
#endif
Xorriso_list_extras_result(xorriso, mode, "use_readline", 0);

10
xorriso/opts_d_h.c
View File

@ -29,6 +29,12 @@
#include "xorriso_private.h"
#include "xorrisoburn.h"
#ifdef Xorriso_with_readlinE
#define Xorriso_with_line_editoR
#endif
#ifdef Xorriso_with_editlinE
#define Xorriso_with_line_editoR
#endif
/* Command -data_cache_size */
int Xorriso_option_data_cache_size(struct XorrisO *xorriso, char *num_tiles,
@ -2185,12 +2191,12 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
" -page len width Prompt user after len output lines (0=no prompt).",
" width (default 80) can adjust line number computation",
" to the output terminal's line width.",
#ifdef Xorriso_with_readlinE
#ifdef Xorriso_with_line_editoR
" -use_readline \"on\"|\"off\"",
" Whether to use libreadline for dialog if available.",
" -history text Copy text into libreadline history. This command",
" itself is not copied to the history list.",
#endif /* Xorriso_with_readlinE */
#endif /* Xorriso_with_line_editoR */
" -sh_style_result \"on\"|\"off\"",
" If \"on\" do not wrap file addresses in quotation marks with",
" -pwd -pwdx -ls -lsd -lsl -lsdl -lsx -lsdx -lslx -lsdlx",

264
xorriso/text_io.c
View File

@ -41,8 +41,14 @@
#include <readline/readline.h>
#include <readline/history.h>
#endif /* ! Xorriso_with_old_readlinE */
#define Xorriso_with_line_editoR yes
#endif /* Xorriso_with_readlinE */
#ifdef Xorriso_with_editlinE
#include <histedit.h>
#define Xorriso_with_line_editoR yes
#endif /* Xorriso_with_editlinE */
#include "xorriso.h"
#include "xorriso_private.h"
@ -59,6 +65,218 @@ int Xorriso_protect_stdout(struct XorrisO *xorriso, int flag)
return(1);
}
#ifdef Xorriso_with_editlinE
/* These have to be global and shared by all XorrisOs which might be active.
*/
static EditLine *editline_handle= NULL;
static History *editline_history= NULL;
static int editline_is_initialized= 0;
char *Xorriso__editline_prompt(EditLine *el_handle)
{
return "";
}
void Xorriso_init_editline(struct XorrisO *xorriso, int flag)
{
HistEvent ev;
/* >>> Need mutex */
if(editline_is_initialized != 0)
return;
editline_is_initialized= -1; /* Invalid */
editline_handle= el_init(xorriso->progname, stdin, stdout, stderr);
if(editline_handle == NULL)
return;
el_set(editline_handle, EL_EDITOR, "emacs");
el_set(editline_handle, EL_PROMPT, &Xorriso__editline_prompt);
editline_history= history_init();
if(editline_history == NULL)
return;
history(editline_history, &ev, H_SETSIZE, 1000);
el_set(editline_handle, EL_HIST, history, editline_history);
/* >>> ??? where to apply history_end() and el_end() ? */;
editline_is_initialized= 1; /* Valid now */
return;
}
#endif /* Xorriso_with_editlinE */
#ifdef Xorriso_with_line_editoR
char *Xorriso_emul_readline(struct XorrisO *xorriso, int flag)
{
#ifdef Xorriso_with_editlinE
const char *cpt;
int count= 0;
char *retpt;
/* >>> Need mutex */
Xorriso_init_editline(xorriso, 0);
if(editline_is_initialized < 0) {
/* >>> fallback */;
}
cpt= el_gets(editline_handle, &count);
if(count == -1 || cpt == NULL)
return(NULL);
retpt= calloc(1, count + 1);
if(retpt == NULL)
return(NULL);
memcpy(retpt, cpt, count);
retpt[count]= 0;
return(retpt);
#else
#ifdef Xorriso_with_readlinE
char *cpt;
cpt= readline("");
return(cpt);
#else
return(NULL);
#endif /* ! Xorriso_with_readlinE */
#endif /* ! Xorriso_with_editlinE */
}
void Xorriso_emul_add_history(struct XorrisO *xorriso, char *line, int flag)
{
#ifdef Xorriso_with_editlinE
HistEvent ev;
/* >>> Need mutex */
Xorriso_init_editline(xorriso, 0);
if(editline_is_initialized < 0)
return;
history(editline_history, &ev, H_ENTER, line);
#else
#ifdef Xorriso_with_readlinE
add_history(line);
#else
/* ??? How to raise protest ? */;
#endif /* ! Xorriso_with_readlinE */
#endif /* ! Xorriso_with_editlinE */
}
/* @param flag bit1= do only report to fp
*/
int Xorriso_status_history(struct XorrisO *xorriso, char *filter, FILE *fp,
int flag)
{
#ifdef Xorriso_with_editlinE
int ret, l;
HistEvent ev;
int hc, i, was_end= 0;
char *str= NULL;
/* >>> Need mutex */
Xorriso_init_editline(xorriso, 0);
if(editline_is_initialized < 0)
{ret= 0; goto ex;}
Xorriso_alloc_meM(str, char, SfileadrL);
ret= history(editline_history, &ev, H_LAST);
for(hc= 0; ret != -1; hc++) {
ret= history(editline_history, &ev, H_PREV);
was_end = (strcmp(ev.str, "-end") == 0);
}
if(was_end)
hc--;
if(hc >= xorriso->status_history_max)
i= hc - xorriso->status_history_max;
else
i= 0;
ret= history(editline_history, &ev, H_LAST);
for(; i < hc && ret != -1; i++) {
/* Eat newline at line end */
strncpy(str, ev.str, SfileadrL - 1);
str[SfileadrL - 1]= 0;
l= strlen(str);
if(l > 0)
if(str[l - 1] == '\n')
str[l - 1]= 0;
sprintf(xorriso->result_line, "-history ");
Text_shellsafe(str, xorriso->result_line, 1);
strcat(xorriso->result_line, "\n");
Xorriso_status_result(xorriso, filter, fp, flag & 2);
ret= history(editline_history, &ev, H_PREV);
}
ret= 1;
ex:;
Xorriso_free_meM(str);
return(ret);
#else
#ifdef Xorriso_with_readlinE
HIST_ENTRY **hl;
int hc, i;
hl= history_list();
if(hl != NULL) {
for(hc= 0; hl[hc] != NULL; hc++);
if(hc > 0)
if(strcmp(hl[hc-1]->line, "-end") == 0)
hc--;
if(hc >= xorriso->status_history_max)
i= hc - xorriso->status_history_max;
else
i= 0;
for(; i < hc; i++) {
sprintf(xorriso->result_line, "-history ");
Text_shellsafe(hl[i]->line, xorriso->result_line, 1);
strcat(xorriso->result_line, "\n");
Xorriso_status_result(xorriso, filter, fp, flag & 2);
}
}
return(1);
#else /* Xorriso_with_readlinE */
return(0);
#endif /* ! Xorriso_with_readlinE */
#endif /* ! Xorriso_with_editlinE */
}
#endif /* Xorriso_with_line_editoR */
int Xorriso_dialog_input(struct XorrisO *xorriso, char line[], int linesize,
int flag)
@ -73,10 +291,10 @@ int Xorriso_dialog_input(struct XorrisO *xorriso, char line[], int linesize,
{
char *cpt= NULL, **argv= NULL, *linept, *why_append= "";
int ret, argc= 0, base_length= 0, l, append_line;
#ifdef Xorriso_with_readlinE
#ifdef Xorriso_with_line_editoR
static char last_input[SfileadrL]= {""};
int no_history= 0;
#endif /* ! Xorriso_with_readlinE */
#endif /* Xorriso_with_line_editoR */
double tdiff;
struct timeval tv;
struct timezone tz;
@ -88,7 +306,7 @@ int Xorriso_dialog_input(struct XorrisO *xorriso, char line[], int linesize,
fflush(stdout);
linept= line;
#ifdef Xorriso_with_readlinE
#ifdef Xorriso_with_line_editoR
no_history= (flag & 1) || xorriso->use_stdin;
#endif
@ -103,7 +321,7 @@ get_single:;
goto process_single;
}
#ifdef Xorriso_with_readlinE
#ifdef Xorriso_with_line_editoR
if(xorriso->use_stdin || xorriso->dev_fd_1>=0 ||
xorriso->tolerate_stdin_eof) {
@ -125,7 +343,7 @@ get_single:;
if(flag&2) {
cpt= NULL;
} else {
cpt= readline("");
cpt= Xorriso_emul_readline(xorriso, 0);
if(cpt==NULL) {
/* need a very dramatic end */
kill(getpid(),SIGHUP);
@ -142,7 +360,7 @@ get_single:;
strcpy(linept, cpt);
}
#else /* Xorriso_with_readlinE */
#else /* Xorriso_with_line_editoR */
if(flag&2)
{ret= 1; goto ex;}
@ -155,7 +373,7 @@ get_single:;
{ret= -1; goto ex;}
}
#endif /* ! Xorriso_with_readlinE */
#endif /* ! Xorriso_with_line_editoR */
process_single:;
@ -209,19 +427,19 @@ new_empty:;
}
}
#ifdef Xorriso_with_readlinE
#ifdef Xorriso_with_line_editoR
put_into_history:;
if((flag & 32) || (line[0]!=0 && strcmp(last_input,line)!=0 && !no_history)) {
if(!((flag&4) &&
(strncmp(line,"-history:",9)==0 || strncmp(line,"-history ",9)==0))) {
add_history(line);
Xorriso_emul_add_history(xorriso, line, 0);
strncpy(last_input,line,sizeof(last_input)-1);
last_input[sizeof(last_input)-1]= 0;
}
}
#endif /* ! Xorriso_with_readlinE */
#endif /* Xorriso_with_line_editoR */
ret= 1;
ex:;
@ -3185,30 +3403,12 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
Xorriso_status_result(xorriso,filter,fp,flag&2);
}
#ifdef Xorriso_with_readlinE
#ifdef Xorriso_with_line_editoR
if((flag&8) && xorriso->status_history_max>0) {
HIST_ENTRY **hl;
int hc,i;
if((flag & 8) && xorriso->status_history_max > 0 && !xorriso->use_stdin)
Xorriso_status_history(xorriso, filter, fp, flag & 2);
hl= history_list();
if(hl!=NULL) {
for(hc= 0;hl[hc]!=NULL;hc++);
if(hc>0)
if(strcmp(hl[hc-1]->line,"-end")==0)
hc--;
if(hc>=xorriso->status_history_max)
i= hc-xorriso->status_history_max;
else
i= 0;
for(;i<hc;i++) {
sprintf(line,"-history %s\n",Text_shellsafe(hl[i]->line,sfe,0));
Xorriso_status_result(xorriso,filter,fp,flag&2);
}
}
}
#endif /* Xorriso_with_readlinE */
#endif /* Xorriso_with_line_editoR */
is_default= (xorriso->toc_emulation_flag == 0);
sprintf(line,"-rom_toc_scan %s:%s:%s\n",

2
xorriso/xorriso_timestamp.h
View File

@ -1 +1 @@
#define Xorriso_timestamP "2014.06.14.185146"
#define Xorriso_timestamP "2014.06.14.192149"