rc

[fork] interactive rc shell
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commit 680d794205b9e7ec0f17732dd31fc231a84b0115
parent 85bdc54544a8b0f9f8c4b2103a7eced0dde69fb2
Author: Toby Goodwin <toby@paccrat.org>
Date:   Fri, 23 Oct 2015 11:17:53 +0100

Merge branch 'master' into develop

Diffstat:
AFutures | 12++++++++++++
ARELDATE | 1+
Aacconfig.h | 83+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Aaclocal.m4 | 1069+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Aedit-bsd.c | 91+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Aedit-gnu.c | 87+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Arandom.pl | 15+++++++++++++++
Aslow | 11+++++++++++
Atmp | 2++
Aversion.c.in | 1+
10 files changed, 1372 insertions(+), 0 deletions(-)

diff --git a/Futures b/Futures @@ -0,0 +1,12 @@ +I18N. + +Offer more control over what rc prints about commands (e.g. a way to +allow EPIPE to generate an error). + +Faster; smaller; cheaper. + +Dynamically load readline and friends. + +Make --disable-def-interp the default. + +Allow builtin wait more than one argument. diff --git a/RELDATE b/RELDATE @@ -0,0 +1 @@ +2014-09-01 diff --git a/acconfig.h b/acconfig.h @@ -0,0 +1,83 @@ +/* Define to a suitable ssize_t. */ +#undef ssize_t + +/* Define to a suitable sig_atomic_t. */ +#undef sig_atomic_t + +/* Define if you want rc to hand off exec errors to (e.g.) /bin/sh. */ +#undef DEFAULTINTERP + +/* Define to the default path used if $PATH is empty when rc starts. */ +#undef DEFAULTPATH + +/* Define if your kernel has SysV special SIGCLD semantics. */ +#undef HAVE_SYSV_SIGCLD + +/* Define if your kernel supports `#!' magic numbers. */ +#undef HASH_BANG + +/* Define if you have /dev/fd. */ +#undef HAVE_DEV_FD + +/* Define if you have /proc/self/fd. */ +#undef HAVE_PROC_SELF_FD + +/* Define if you have named pipes. */ +#undef HAVE_FIFO + +/* Define if quad_t is a native type. */ +#undef HAVE_QUAD_T + +/* Define if you have rlim_t. */ +#undef HAVE_RLIM_T + +/* Define if you have sigsetjmp(). */ +#undef HAVE_SIGSETJMP + +/* Define in you have strerror(). */ +#undef HAVE_STRERROR + +/* Define if you want rc to encode strange characters in the environment. */ +#undef PROTECT_ENV + +/* Define if you have extra builtins. */ +#undef RC_ADDON + +/* Define if you want echo as a builtin. */ +#undef RC_ECHO + +/* Define if you want rc to support broken apps, like a job control shell. */ +#undef RC_JOB + +/* Define if you want to use editline. */ +#undef EDITLINE + +/* Define if you want to use GNU readline. */ +#undef READLINE + +/* Define if you have the older readline, with rl_deprep_terminal. */ +#undef READLINE_OLD + +/* Define if RLIMIT_foo defines need _KERNEL. */ +#undef RLIMIT_NEEDS_KERNEL + +/* Define if rlim_t is quad_t. */ +#undef RLIM_T_IS_QUAD_T + +/* Define to package name. */ +#undef PACKAGE + +/* Define to version. */ +#undef VERSION + +/* Define to release date. */ +#undef RELDATE + +/* Define if you have SA_INTERRUPT (and sigaction()). */ +#undef HAVE_SA_INTERRUPT + +/* Define if you have POSIX getgroups(). */ +#undef HAVE_POSIX_GETGROUPS + +/* Define if you have va_copy(). */ +#undef HAVE_VA_COPY diff --git a/aclocal.m4 b/aclocal.m4 @@ -0,0 +1,1069 @@ +# generated automatically by aclocal 1.13.4 -*- Autoconf -*- + +# Copyright (C) 1996-2013 Free Software Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) +m4_ifndef([AC_AUTOCONF_VERSION], + [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl +m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, +[m4_warning([this file was generated for autoconf 2.69. +You have another version of autoconf. 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We do so because we + # need to set the values for the 'am__tar' and 'am__untar' variables. + _am_tools=${am_cv_prog_tar_$1-$_am_tools} + + for _am_tool in $_am_tools; do + case $_am_tool in + gnutar) + for _am_tar in tar gnutar gtar; do + AM_RUN_LOG([$_am_tar --version]) && break + done + am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' + am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' + am__untar="$_am_tar -xf -" + ;; + plaintar) + # Must skip GNU tar: if it does not support --format= it doesn't create + # ustar tarball either. + (tar --version) >/dev/null 2>&1 && continue + am__tar='tar chf - "$$tardir"' + am__tar_='tar chf - "$tardir"' + am__untar='tar xf -' + ;; + pax) + am__tar='pax -L -x $1 -w "$$tardir"' + am__tar_='pax -L -x $1 -w "$tardir"' + am__untar='pax -r' + ;; + cpio) + am__tar='find "$$tardir" -print | cpio -o -H $1 -L' + am__tar_='find "$tardir" -print | cpio -o -H $1 -L' + am__untar='cpio -i -H $1 -d' + ;; + none) + am__tar=false + am__tar_=false + am__untar=false + ;; + esac + + # If the value was cached, stop now. We just wanted to have am__tar + # and am__untar set. + test -n "${am_cv_prog_tar_$1}" && break + + # tar/untar a dummy directory, and stop if the command works. + rm -rf conftest.dir + mkdir conftest.dir + echo GrepMe > conftest.dir/file + AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) + rm -rf conftest.dir + if test -s conftest.tar; then + AM_RUN_LOG([$am__untar <conftest.tar]) + AM_RUN_LOG([cat conftest.dir/file]) + grep GrepMe conftest.dir/file >/dev/null 2>&1 && break + fi + done + rm -rf conftest.dir + + AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) + AC_MSG_RESULT([$am_cv_prog_tar_$1])]) + +AC_SUBST([am__tar]) +AC_SUBST([am__untar]) +]) # _AM_PROG_TAR + +m4_include([acinclude.m4]) diff --git a/edit-bsd.c b/edit-bsd.c @@ -0,0 +1,91 @@ +#include "rc.h" + +#include <stdio.h> + +#include <histedit.h> + +#include "edit.h" + +bool editing = 1; + +struct cookie { + EditLine *el; + History *hist; +}; + +static char *prompt; + +void *edit_begin(int fd) { + FILE *f; + HistEvent he; + struct cookie *c; + + c = ealloc(sizeof *c); + if (fd == 0) + f = stdin; + else + f = fdopen(fd, "r"); + c->el = el_init("rc", f, stdout, stderr); + el_set(c->el, EL_SIGNAL, 0); + el_source(c->el, NULL); + + c->hist = history_init(); + history(c->hist, &he, H_SETSIZE, 20); + el_set(c->el, EL_HIST, history, c->hist); + + return c; +} + + +static void edit_catcher(int sig) { + write(2, "\n", 1); + rc_raise(eError); +} + +char *edit_alloc(void *cookie, size_t *count) { + const char *r; + HistEvent he; + struct cookie *c = cookie; + void (*oldint)(int), (*oldquit)(int); + + oldint = sys_signal(SIGINT, edit_catcher); + oldquit = sys_signal(SIGQUIT, edit_catcher); + + r = el_gets(c->el, count); + + sys_signal(SIGINT, oldint); + sys_signal(SIGQUIT, oldquit); + + if (r) + history(c->hist, &he, H_ENTER, r); + return (char *)r; /* cast to avoid gcc warning */ +} + +static char *edit_prompter(EditLine *e) { + return prompt; +} + +void edit_prompt(void *cookie, char *pr) { + struct cookie *c = cookie; + + prompt = pr; + el_set(c->el, EL_PROMPT, edit_prompter); +} + +void edit_free(void *cookie) { + /* this function deliberately left blank */ +} + +void edit_end(void *cookie) { + struct cookie *c = cookie; + + el_end(c->el); + history_end(c->hist); + efree(c); +} + +void edit_reset(void *cookie) { + struct cookie *c = cookie; + + el_set(c->el, EL_TERMINAL, NULL); +} diff --git a/edit-gnu.c b/edit-gnu.c @@ -0,0 +1,87 @@ +#include "rc.h" + +#include <errno.h> +#include <stdio.h> +#include <readline/readline.h> +#include <readline/history.h> +#include <readline/rltypedefs.h> + +#include "edit.h" + +bool editing = 1; + +struct cookie { + char *buffer; +}; + +void *edit_begin(int fd) { + List *hist; + struct cookie *c; + + rl_catch_signals = 0; + rl_completer_quote_characters = "'"; + rl_filename_quote_characters = "\t\n !#$&'()*;<=>?@[\\]^`{|}~"; + + hist = varlookup("history"); + if (hist != NULL) + if (read_history(hist->w) != 0 && errno != ENOENT) /* ignore if missing */ + uerror(hist->w); + + c = ealloc(sizeof *c); + c->buffer = NULL; + return c; +} + +static void edit_catcher(int sig) { + write(2, "\n", 1); + rc_raise(eError); +} + +static char *prompt; + +char *edit_alloc(void *cookie, size_t *count) { + struct cookie *c = cookie; + void (*oldint)(int), (*oldquit)(int); + + oldint = sys_signal(SIGINT, edit_catcher); + oldquit = sys_signal(SIGQUIT, edit_catcher); + + c->buffer = readline(prompt); + + sys_signal(SIGINT, oldint); + sys_signal(SIGQUIT, oldquit); + + if (c->buffer) { + *count = strlen(c->buffer); + if (*count) + add_history(c->buffer); + c->buffer[*count] = '\n'; + ++*count; /* include the \n */ + } + return c->buffer; +} + +void edit_prompt(void *cookie, char *pr) { + prompt = pr; +} + +void edit_free(void *cookie) { + struct cookie *c = cookie; + + efree(c->buffer); + /* Set c->buffer to NULL, allowing us to "overfree" it. This + is a bit of a kludge, but it's otherwise hard to deal with + the case where a signal causes an early return from + readline. */ + c->buffer = NULL; +} + +void edit_end(void *cookie) { + struct cookie *c = cookie; + + efree(c); +} + +void edit_reset(void *cookie) { + rl_reset_terminal(NULL); +} diff --git a/random.pl b/random.pl @@ -0,0 +1,15 @@ +#! /usr/bin/perl + +$count = 10; +$size = rand(1000); + +for ($i = 0; $i < $count; ++$i) { + open OUT, "> t$i" or die; + for ($j = 0; $j < $size; ++$j) { + printf OUT "%c", rand(256); + } + close OUT; + $cmd = "./rc t$i"; + print $cmd, "\n"; + system $cmd; +} diff --git a/slow b/slow @@ -0,0 +1,11 @@ +for (i in 0 1 2 3 4 5 6 7 8 9) { + x=() + y=() + for (j in 0 1 2 3 4 5 6 7 8 9) + for (k in 0 1 2 3 4 5 6 7 8 9) + for (l in 0 1 2 3 4 5 6 7 8 9) { + x = $x^. + y = ($y $x) + } + echo $#y +} diff --git a/tmp b/tmp @@ -0,0 +1,2 @@ +x=('#' '#' '#') +eval z^`{whatis -v x} >[2]/dev/null diff --git a/version.c.in b/version.c.in @@ -0,0 +1 @@ +const char id[] = "@(#)@PACKAGE@ version @VERSION@, @RELDATE@.";