Init
This commit is contained in:
Jaidyn Lev
commit
8a258f44e0
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===============================================================================
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WYRICS Git some lyrics
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===============================================================================
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Fetch lyrics for a song from lyrics.wikia.com with this script.
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You can fetch them by search queries, or by their URL.
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----------------------------------------
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PRE-REQUISITES
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----------------------------------------
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You'll need:
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* "gendl" in your $PATH
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* a POSIX-compatible shell (tested with `pdksh` and `bash`)
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* "curl", "wget", or "ftp" installed
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* "lynx" installed
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----------------------------------------
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USAGE
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----------------------------------------
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Just run "wyrics" like so:
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wyrics -s "query"
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wyrics -u page_url
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If you use the "-u" option, the lyrics will just be printed to stdout.
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If you decide to use "-s", though, search results'll be displayed to your
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screen (via stderr)-- each numbered from 1-10.
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Just type a number, hit enter, and the lyrics'll pop up.
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$ wyrics -s "boston"
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1 Boston
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2 Sonny:We're Better Than Boston
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3 Boston Manor:FY1
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4 Boston Manor:Halo
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5 Boston Manor:Wolf
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6 Boston Manor:Stick Up
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7 Boston Manor:If I Can't Have It No One Can
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8 Boston Manor:Square One
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9 Boston Manor:Driftwood
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10 Boston Manor:Forget Me Not
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>>
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If you want to save lyrics to a file, you'll need to redirect the
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output-- "wyrics -s 'bob' > BOB.txt"
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----------------------------------------
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BORING STUFF
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----------------------------------------
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License is CC-0 (though, "gendl" is GPLv3)
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Author is Jenga Phoenix <jadedctrl@teknik.io>
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Sauce is at https://git.eunichx.us/wyrics
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#!/bin/sh
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##############################
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# name: gendl
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# lisc: gnu gplv3
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# desc: download to stdout or
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# file, independent of
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# a specific downloader.
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# ftp/wget/curl support.
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# main: jadedctrl
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##############################
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# usage: gendl [-o output] url
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#---------------------------------------
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# backend bits
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# NIL --> STRING
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# return the download program you're using
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function download_program
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{
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programs="ftp curl wget"
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current=""
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for program in $programs
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do
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if whereis $program > /dev/null
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then
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current=$program
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fi
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done
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if uname -s | grep -e "LibertyBSD" -e "OpenBSD" > /dev/null
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then
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current="ftp"
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fi
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echo "$current"
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}
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# STRING PATH --> NIL
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# download URL $1 to stdout
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function download_stdout
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{
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program=$(download_program)
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url=$1
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case "$program" in
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"ftp")
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output="$(ftp -VMo- $url)"
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;;
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"curl")
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output="$(curl $url)"
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;;
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"wget")
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output="$(wget --quiet -O $url)"
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;;
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esac
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return_code=$?
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echo "$output"
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return $return_code
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}
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# STRING PATH --> NIL
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# download URL $1 to path $2
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function download_file
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{
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program=$(download_program)
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url=$1
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path=$2
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case "$program" in
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"ftp")
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ftp -VMU "." -o $path $url
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;;
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"curl")
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curl -o $path $url
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;;
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"wget")
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wget --quiet -O $path $url
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;;
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esac
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return_code=$?
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if test $return_code -ne 0 2>/dev/null
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then
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rm $path 2> /dev/null
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# for consistency in behavior; wget saves 404s anyway, whereas
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# ftp doesn't save anything from 404s, etc.
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fi
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return $return_code
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}
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# --------------------------------------
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# front-end string-manip
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# STRING --> STRING
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# return the last word in a string
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function last_word
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{
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string="$1"
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echo "$string" \
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| rev \
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| sed 's% .*%%' \
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| rev
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}
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function usage
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{
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echo "usage: gendl [-o output] URL"
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}
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# --------------------------------------
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# invocation
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args="$(getopt o: $*)"
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if test -z "$@" 2>/dev/null
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then
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usage
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exit 2
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fi
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set -- $args
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while test $# -ne 0
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do
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case "$1"
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in
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-o)
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download_path="$2"; shift; shift;;
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--)
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shift; break;;
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esac
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done
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url="$(last_word "$@")"
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if test -n "$download_path" 2> /dev/null
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then
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download_file $url $download_path
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else
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download_stdout "$url"
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fi
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#!/bin/sh
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########################################
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# name: wyrics
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# desc: fetch lyrics by URL or query
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# from lyrics.wikia.com
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# main: Jenga Phoenix
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# <jadedctrl@teknik.io>
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# lisc: CC 0
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########################################
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# --------------------------------------
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# generic
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# NIL --> STRING
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# read from stdin until eof hit; return all input
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# good for writing functions that take piped info
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function reade {
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local stack=""
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while read input; do
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stack="$(printf '%s\n%s' "$stack" "$input")"
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done
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echo "$stack"
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}
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# NUMBER STRING --> [BOOLEAN]
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# have the user choose a number, up to a given max, with prompt.
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function number_choose {
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local max=$1
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local prompt="$2"
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printf "$prompt" >&2
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read response
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if test $response -lt $max; then
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return $response
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else
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number_choose $max "$prompt"
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fi
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}
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# NUMBER NUMBER --> NUMBER
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# add two numbers together. pretty obvious.
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function add {
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local operator=$1
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local operatee=$2
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echo "$1 + $2" \
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| bc
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}
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# NUMBER NUMBER --> NUMBER
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# subtract two numbers. pretty obvious.
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function subtract {
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local operator=$1
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local operatee=$2
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echo "$1 - $2" \
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| bc
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}
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# --------------------------------------
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# searching
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# STRING --> STRING
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# return a result-list from a search query
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function search {
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local query="$1"
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local query="$(echo "$query" | sed 's/ /+/g')"
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gendl "https://lyrics.wikia.com/wiki/Special:Search?query=${query}" \
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| sed '1,/Results/d' \
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| grep "result-link" \
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| search_parse
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}
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# |STRING --> STRING
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# take slightly-trimmed search HTML and turn it into result-list
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function search_parse {
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local html="$(reade)"
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local stack=""
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local i=0
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IFS='
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'
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for line in $html; do
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i=$(add $i 1)
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local url="$(echo "$line" \
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| sed 's/.*href=\"//' \
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| sed 's/\" class.*//')"
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local title="$(echo "$line" \
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| sed 's%.*\" >%%' \
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| sed 's%</a>.*%%')"
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if echo "$title" | grep "http" > /dev/null; then
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i=$(subtract $i 1)
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else
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stack="$(printf '%s\n%s@%s@%s' \
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"$stack" "$i" "$url" "$title")"
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fi
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done
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echo "$stack" \
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| head -11
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}
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# --------------------------------------
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# result manipulation
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# |STRING --> STRING
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# return the title of a result
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function result_title {
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local result="$(reade)"
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echo "$result" \
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| awk -F "@" '{ print $3 }' \
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| tr -d '\n'
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}
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# |STRING --> STRING
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# return the ID of a result
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function result_index {
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local result="$(reade)"
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echo "$result" \
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| awk -F "@" '{ print $1 }' \
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| tr -d '\n'
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}
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# |STRING --> STRING
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# return the URL of a result
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function result_url {
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local result="$(reade)"
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echo "$result" \
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| awk -F "@" '{ print $2 }' \
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| tr -d '\n'
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}
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# |STRING [STRING] --> STRING
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# display all results in a result-list to stderr.
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# if second argument is 'long', then URLs are printed, too.
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function results_display {
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local results="$(reade)"
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local long="$1"
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IFS='
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'
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for result in $results; do
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local index="$(echo "$result" | result_index)"
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local title="$(echo "$result" | result_title)"
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local url="$(echo "$result" | result_url)"
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echo "$index $title" >&2
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if test "$long" = "long"; then
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echo "$url" >&2
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fi
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done
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}
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# STRING --> STRING
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# have the user choose a single result from the result-list
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function result_choose {
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local results="$1"
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local max="$(echo "$results" | wc -l)"
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number_choose $max ">> "
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local response=$?
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echo "$results" \
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| grep "^$response@"
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}
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# --------------------------------------
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# STRING --> STRING
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# return the lyrics of a given URL
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function lyrics {
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local url="$1"
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gendl "$url" \
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| grep "class=\'lyricbox" \
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| sed 's/.*lyricbox.>//' \
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| sed 's/;<div.*//' \
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| lynx -stdin -dump \
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| sed 's/^ //g'
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}
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# --------------------------------------
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# invocation
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# NIL --> STRING
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# print usage and abort
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function usage {
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echo "usage: wyrics -s query"
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echo " wyrics -u url"
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exit 2
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}
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# --------------------------------------
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case "$1" in
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"-u")
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lyrics "$2"
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;;
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"-s")
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results="$(search "$2")"
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echo "$results" | results_display
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url="$(result_choose "$results" | result_url)"
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lyrics "$url"
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;;
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*)
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usage
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;;
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esac
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