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#!/bin/sh
# $Id$
# Surfraw -- Shell Users' Revolutionary Front Against the World wide web
#
# Copyright (c) 2003-2010 The Surfraw-Devel Team
# <surfraw-devel@lists.alioth.debian.org>
# Copyright (c) 2000-2001 Julian Assange, placed into the public domain
# Copyright (c) 2000 Melbourne Institute for Advanced Study, placed into the public domain
#
# see the file COPYING for further copyright details
#
surfraw_version=@VERSION@
surfraw_api_version=1.0
w3_argv0=`basename "$0"`
elvidir="@ELVIDIR@"
# defaults
w3_config_hook () {
return 1
}
find_global_conf () {
base="$1"
local conf OIFS
conf=""
if test -n "$XDG_CONFIG_DIRS"; then
OIFS="$IFS"
IFS=:
set $XDG_CONFIG_DIRS
IFS="$OIFS"
for i in "$@"; do
if test -r "$i/surfraw/$base"; then
conf="$i/surfraw/$base"
break
fi
done
elif test -r "@sysconfdir@/xdg/surfraw/$base"; then # XDG default
conf="@sysconfdir@/xdg/surfraw/$base"
elif test -r "@sysconfdir@/surfraw.$base"; then # old surfraw default
conf="@sysconfdir@/surfraw.$base"
fi
echo "$conf"
}
load_global_conf () {
local conf
if test -n "$SURFRAW_global_conf" && test -r "$SURFRAW_global_conf"; then
conf="$SURFRAW_global_conf"
else
conf=$(find_global_conf conf)
fi
if test -z "$conf" || ! test -r "$conf"; then
err "couldn't find global config in @sysconfdir@/xdg/surfraw/conf or \$XDG_CONFIG_DIRS"
fi
. "$conf"
}
find_local_conf () {
base="$1"
if test -n "$XDG_CONFIG_HOME" && test -r "$XDG_CONFIG_HOME/surfraw/$base"; then
echo "$XDG_CONFIG_HOME/surfraw/$base"
elif test -n "$HOME"; then
if test -r "$HOME/.config/surfraw/$base"; then
echo "$HOME/.config/surfraw/$base"
elif test -r "$HOME/.surfraw.$base"; then
echo "$HOME/.surfraw.$base"
fi
fi
}
load_local_conf () {
local conf
conf=""
if test -n "$SURFRAW_conf" && test -r "$SURFRAW_conf"; then
conf="$SURFRAW_conf"
else
conf="$(find_local_conf conf)"
fi
if test -n "$conf" && test -r "$conf"; then
. $conf
fi
}
get_local_elvi_dir () {
if test -n "$XDG_CONFIG_HOME";then
echo "$XDG_CONFIG_HOME/surfraw/elvi"
elif test -n "$HOME";then
echo "$HOME/.config/surfraw/elvi"
fi
}
w3_config () {
load_global_conf
w3_config_hook
load_local_conf
}
warn () {
echo "$w3_argv0 WARNING: ""$@" >&2
}
err () {
echo "$w3_argv0 ERROR: ""$@" >&2
exit 1
}
yesno () {
eval value=\$${1}
case `echo "$value" | tr A-Z a-z` in
yes|true|on|1) return 0 ;;
no|false|off|0) return 1 ;;
*) err "\"$1\" is not set correctly. Should be (yes|on|1|no|off|0). Is \"$value\"" ;;
esac
}
ifyes () {
yesno "$@" && return 0
return 1
}
ifno () {
yesno "$@" && return 1
return 0
}
ok () {
yesno "$@"
}
null () {
test -z "$@" && return 0
return 1
}
def () {
eval value=\$${1}
test -z "$value" || return 0
eval ${1}="$2"
return 0
}
defyn () {
eval value=\$${1}
test -z "$value" && eval ${1}="$2"
yesno "$1"
}
setopt () {
eval value=\$${1}
eval ${1}="$2"
}
setoptyn () {
eval value=\$${1}
eval ${1}="$2"
yesno "$1"
}
quote_ifs () {
if [ -z "$1" ]; then return; fi
perl -e '$ifs=$ENV{IFS} || " "; $arg=shift;if($arg =~/[$ifs]/) { $arg="\"$arg\""; } print "$arg\n"; ' -- "$1"
}
bookmark_file_search () {
search="$1"
file="$2"
if [ -r "$file" ]
then
@AWK@ -v search="$search" '$1 == search { print $2; }' $file | head -n 1
fi
}
bookmark_lookup () {
search="$1"
file=$(find_local_conf bookmarks)
lookup=$(bookmark_file_search "$search" "$file")
if [ -z "$lookup" ]
then
file=$(find_global_conf bookmarks)
lookup=$(bookmark_file_search "$search" "$file")
fi
if [ -n "$lookup" ]
then
echo "$lookup"
fi
}
w3_find_prog () {
prog="$1"
old_ifs="${IFS:-\" \"}"
IFS=":"
path_ifs="$PATH"
for dir in $path_ifs; do
test -z "$dir" && dir=.
if test -e "$dir/$prog"; then
echo "$dir/$prog"
IFS="$old_ifs"
return 0
fi
done
IFS="$old_ifs"
return 1
}
w3_url_escape () {
echo "$@" | sed 's/%/%25/g;
s/+/%2B/g;
# s/ /+/g;
s/ /%20/g;
s/(/%28/g;
s/)/%29/g;
s/"/%22/g;
s/#/%23/g;
s/\$/%24/g;
s/&/%26/g;
s/,/%2C/g;
# s/\./%2E/g;
sx/x%2Fxg;
s/:/%3A/g;
s/;/%3B/g;
s/</%3C/g;
s/=/%3D/g;
s/>/%3E/g;
s/?/%3F/g;
s/@/%40/g;
s/\[/%5B/g;
s/\\/%74/g;
s/\]/%5D/g;
s/\^/%5E/g;
s/{/%7B/g;
s/|/%7C/g;
s/}/%7D/g;
s/~/%7E/g;
s/`/%60/g;
'"s/'/%27/g"
}
w3_url_of_arg () {
if ok SURFRAW_quote_args; then
args=\""$@"\"
else
args="$@"
fi
if ok SURFRAW_escape_url_args; then
w3_url_escape "$args"
else
echo "$args"
fi
}
true () {
return 0
}
false () {
return 1
}
w3_global_usage () {
defyn SURFRAW_local_help no
if ifyes SURFRAW_local_help; then
return;
fi
# style: keep sorted
#-------------------------------------79 cols----------------------------------
cat <<EOF
Global options:
-browser=EXECUTABLE Set browser
Default: $SURFRAW_browser
-elvi List Surfraw mechanisms for conquering evil
-escape-url-args=yes|no Apply url escaping to arguments
Default: $SURFRAW_escape_url_args
Environment: SURFRAW_escape_url_args
-g | -graphical Get some windowed sin
Default: $SURFRAW_graphical
Environment: SURFRAW_graphical
-h | -help What you're reading now, dude
-lh | -local-help Just show elvi-specific help, not the global options
-p | -print Just print search URL, don't pass to browser
-o | -o=FILE Fetch URL and dump to stdout or FILE.
-new[=yes|no] Start in a new window
Default: $SURFRAW_new_window
Environment: SURFRAW_new_window
-ns[=yes|no] Start in a new screen
| -newscreen[=yes|no] Default: $SURFRAW_new_screen
Environment: SURFRAW_new_screen
-t | -text Back to the yellow brick road
-q | -quote Quote arguments with " characters
Default: $SURFRAW_quote_args
Environment: SURFRAW_quote_args
-version Display Surfraw version ($surfraw_version)
-- End of options
Copyright:
Copyright (c) 2003-2011 The Surfraw-Devel Team
<surfraw-devel@lists.alioth.debian.org>
Copyright (c) 2000-2001 Julian Assange <proff@iq.org>
Copyright (c) 2001 Australian Institute for Collaborative Research
Copyright (c) 2000 Melbourne Institute for Advanced Study
EOF
}
w3_usage_hook () {
echo "Usage: $w3_argv0 [options] [args...]"
w3_global_usage
}
w3_bad_option () {
err "bad option \"${opt}\". Try ${w3_argv0} -help for usage information"
}
w3_parse_option_hook () {
return 1
}
list_elvi() {
local dir="$1"
sed -n 's/^.*elvis: \(.*\)$/\1/p' $(find "$dir" ! -type d ! -type l ! -name '*~' | sort)
for script in $(find "$dir" ! -type d -type l | sort) ; do
printf '%-16s--> %s\n' $(basename "$script") $(basename $(readlink "${script}"))
done
}
w3_parse_option () {
opt="$1"
case "$opt" in
-*=*) optarg=`echo "$opt" | sed 's/[-_a-zA-Z0-9]*=//'`
esac
w3_parse_option_hook "$opt" "$optarg" && return 0
case "$opt" in
-browser=*) setopt SURFRAW_browser $optarg ;;
-elvi) echo " GLOBAL ELVI:"
list_elvi "$elvidir"
localelvidir=$(get_local_elvi_dir)
if [ -d "$localelvidir" ] && [ -n "$(ls "$localelvidir")" ]; then
echo " LOCAL ELVI:"
list_elvi "$localelvidir"
fi
exit 0 ;;
-escape-url-args=*) setoptyn SURFRAW_escape_url_args $optarg ;;
-g | -graphical) setoptyn SURFRAW_graphical yes ;;
-help | --help |-h) do_help=1 ;;
-local-help | \
--local-help |-lh ) do_help=1 ;setoptyn SURFRAW_local_help yes ;;
-q | -quote) setoptyn SURFRAW_quote_args yes ;;
-new) setoptyn SURFRAW_new_window yes ;;
-new=*) setoptyn SURFRAW_new_window $optarg ;;
-ns | -newscreen) setoptyn SURFRAW_new_screen yes ;;
-ns=* | -newscreen=*) setoptyn SURFRAW_new_screen $optarg ;;
-o) setoptyn SURFRAW_dump yes ;;
-o=*) setoptyn SURFRAW_dump yes
setopt SURFRAW_dump_file $optarg ;;
-t | -text) unset DISPLAY
setoptyn SURFRAW_graphical no ;;
-version) echo $surfraw_version; exit 0 ;;
-p | -print) setoptyn SURFRAW_print yes ;;
--) setoptyn SURFRAW_end_of_args yes ;;
-*) w3_bad_option "$opt" ;;
*) return 1 ;;
esac
return 0
}
w3_parse_args () {
w3_args=
def SURFRAW_browser none
def SURFRAW_browser_args none
defyn SURFRAW_quote_ifs yes
defyn SURFRAW_end_of_args no
do_help=0
mode=unknown
for arg in "$@"; do
isarg=1
if ifno SURFRAW_end_of_args
then
w3_parse_option "$arg"
isarg=$?
fi
if [ $isarg -eq 1 ]
then
if ok SURFRAW_quote_ifs
then
arg=`quote_ifs "$arg"`
fi
if [ -n "$w3_args" ]
then
w3_args="$w3_args $arg"
else
w3_args="$arg"
fi
fi
done
if test $SURFRAW_browser = none; then
if ok SURFRAW_graphical && test -n "$DISPLAY"; then
SURFRAW_browser=$SURFRAW_graphical_browser
SURFRAW_browser_args=$SURFRAW_graphical_browser_args
mode=graphical
else
SURFRAW_browser=$SURFRAW_text_browser
SURFRAW_browser_args=$SURFRAW_text_browser_args
mode=text
fi
fi
if ok do_help; then
w3_usage_hook
exit 0
fi
}
w3_dump () {
if test -z "$SURFRAW_dump_file"; then
SURFRAW_dump_file="-"
fi
if test -x "$(which curl)"; then
curl -o "$SURFRAW_dump_file" "$@"
elif test -x "$(which wget)"; then
wget -q -O "$SURFRAW_dump_file" "$@"
elif test -x "$(which GET)"; then
if test "$SURFRAW_dump_file" = "-"; then
GET "$@"
else
GET "$@" > "$SURFRAW_dump_file"
fi
else
err "No URL fetcher found: install curl, wget or libwww-perl"
fi
}
w3_browse_url () {
if ok SURFRAW_new_screen && test `echo $TERM | cut -c 1-6` = "screen" &&
test $mode = text; then
screen=yes
else
screen=no
fi
if ok SURFRAW_dump; then
w3_dump "$@"
elif ok SURFRAW_print; then
echo "$@"
elif ok screen; then
if [ "$SURFRAW_screen" = "tmux" ]; then
if test "$SURFRAW_browser_args" = "none"; then
$SURFRAW_screen $SURFRAW_screen_args "$SURFRAW_browser \"$@\""
else
$SURFRAW_screen $SURFRAW_screen_args "$SURFRAW_browser $SURFRAW_browser_args \"$@\""
fi
else
if test $SURFRAW_browser_args = "none"; then
$SURFRAW_screen $SURFRAW_screen_args $SURFRAW_browser "$@"
else
$SURFRAW_screen $SURFRAW_screen_args $SURFRAW_browser $SURFRAW_browser_args "$@"
fi
fi
else
if ok SURFRAW_graphical_remote && test $mode = graphical; then
if ok SURFRAW_new_window; then
newwin=", new-window"
else
newwin=""
fi
if test $SURFRAW_browser_args = "none"; then
$SURFRAW_browser -remote "openURL($*$newwin)" 2>/dev/null || $SURFRAW_browser "$@" &
else
$SURFRAW_browser -remote "openURL($*$newwin)" 2>/dev/null || $SURFRAW_browser $SURFRAW_browser_args "$@" &
fi
else
if test $SURFRAW_browser_args = "none"; then
$SURFRAW_browser "$@"
else
$SURFRAW_browser $SURFRAW_browser_args "$@"
fi
fi
fi
}
quote () {
quoted=`echo "$1"|sed "s/'/'\\\\\''/g"`
echo "'$quoted'"
}
surfraw_usage() {
cat <<EOF
Usage: $w3_argv0 [-help] [-elvi] elvis [elvioptions] [search terms]
$w3_argv0 [options] bookmark
If you wish to run the elvi directly, run "surfraw-update-path" to append
$elvidir to your \$PATH in your shell's config files.
See surfraw-update-path(1) for details
Options:
-elvi List elvi
-help This help
sr is an alias for surfraw
EOF
w3_global_usage
}
if [ "$w3_argv0" = "surfraw" -o "$w3_argv0" = "sr" ]
then
w3_config
opts=""
unquoted_opts=""
elvi=""
searchterms=""
do_help=0
for arg in "$@"
do
# if it is an option
if @AWK@ -v arg="$arg" 'BEGIN { if(arg ~ /^-/) { exit 0 } else { exit 1 } } '
then
# if option before elvi
if [ -z "$elvi" ]
then
case "$arg" in
-help | --help |-h) do_help=1 ;;
-local-help | \
--local-help | \
-lh | -\? ) do_help=1 ; setoptyn SURFRAW_local_help yes ;;
-elvi*) w3_parse_option -elvi; exit 0 ;;
esac
fi
if ok do_help
then
surfraw_usage
exit 0
fi
if [ -z "$opts" ]
then
opts="`quote "$arg"`"
unquoted_opts="$arg"
else
opts="$opts `quote "$arg"`"
unquoted_opts="$unquoted_opts $arg"
fi
elif [ -z "$elvi" ]
then
elvi="$arg"
else
if [ -z "$searchterms" ]
then
searchterms="`quote "$arg"`"
else
searchterms="$searchterms `quote "$arg"`"
fi
fi
done
if [ -z "$elvi" ]
then
surfraw_usage
exit 0
else
localelvidir=$(get_local_elvi_dir)
if [ -x "$localelvidir/$elvi" ]
then
sh -c "$localelvidir/$elvi $opts $searchterms"
elif [ -x "$elvidir/$elvi" ]
then
sh -c "$elvidir/$elvi $opts $searchterms"
else
bookmark=`bookmark_lookup $elvi`
if [ -n "$bookmark" ]
then
w3_parse_args $unquoted_opts
w3_browse_url "$bookmark"
else
echo "`basename $0`: $elvi: No elvis or bookmark with that name"
surfraw_usage >&2
exit 1
fi
fi
fi
fi
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