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# Functions to make it easier to type URLs as command line arguments. As
# you type, the input character is analyzed and, if it may need quoting,
# the current word is checked for a URI scheme. If one is found and the
# current word is not already in quotes, a backslash is inserted before
# the input character.
# Setup:
# autoload -Uz url-quote-magic
# zle -N self-insert url-quote-magic
# A number of zstyles may be set to control the quoting behavior.
#
# url-metas
# This style is looked up in the context :url-quote-magic:SCHEME (where
# SCHEME is that of the current URL, e.g. "ftp"). The value is a string
# listing the characters to be treated as globbing metacharacters when
# appearing in a URL using that scheme. The default is to quote all zsh
# extended globbing characters, excluding '<' and '>' but including
# braces (as in brace expansion). See also url-seps.
#
# url-seps
# Like url-metas, but lists characters that should be considered command
# separators, redirections, history references, etc. The default is to
# quote the standard set of shell separators, excluding those that
# overlap with the extended globbing characters, but including '<' and
# '>' and the first character of $histchars.
#
# url-globbers
# This style is looked up in the context :url-quote-magic. The values
# form a list of command names that are expected to do their own globbing
# on the URL string. This implies that they are aliased to use the
# "noglob" modifier. When the first word on the line matches one of the
# values AND the URL refers to a local file (see url-local-schema), only
# the url-seps characters are quoted; the url-metas are left alone,
# allowing them to affect command-line parsing, completion, etc. The
# default values are a literal "noglob" plus (when the zsh/parameter
# module is available) any commands aliased to the helper function
# "urlglobber" or its alias "globurl".
#
# url-local-schema
# This style is always looked up in the context :urlglobber, even though
# it is used by both url-quote-magic and urlglobber. The values form
# a list of URI schema that should be treated as referring to local files
# by their real local path names, as opposed to files which are specified
# relative to a web-server-defined document root. The defaults are "ftp"
# and "file".
#
# url-other-schema
# Like url-local-schema, but lists all other URI schema upon which
# urlglobber and url-quote-magic should act. If the URI on the
# command line does not have a scheme appearing either in this list or in
# url-local-schema, it is not magically quoted. The default values are
# "http", "https", and "ftp". When a scheme appears both here and in
# url-local-schema, it is quoted differently depending on whether the
# command name appears in url-globbers.
# TODO:
# Add a style for "document root" for globbing local URLs.
# Turn this on at colon, and off again at space or accept.
# Use compsys for nested quoting analysis and command parsing.
# Establish default values for styles, but only if not already set
zstyle -m ':url-quote-magic:\*' url-metas '*' ||
zstyle ':url-quote-magic:*' url-metas '*?[]^(|)~#{}='
zstyle -m ':url-quote-magic:\*' url-seps '*' ||
zstyle -e ':url-quote-magic:*' url-seps 'reply=(";&<>${histchars[1]}")'
zstyle -m :url-quote-magic url-globbers '*' ||
zstyle -e :url-quote-magic url-globbers \
'zmodload -i zsh/parameter;
reply=( noglob
${(k)galiases[(R)(* |)(noglob|urlglobber|globurl) *]:-}
${(k)aliases[(R)(* |)(noglob|urlglobber|globurl) *]:-} )'
zstyle -m ':urlglobber' url-local-schema '*' ||
zstyle ':urlglobber' url-local-schema ftp file
zstyle -m ':urlglobber' url-other-schema '*' ||
zstyle ':urlglobber' url-other-schema http https ftp
# Define the "urlglobber" helper function and shorthand "globurl" alias
function urlglobber {
local -a args globbed localschema otherschema
local arg command="$1"
shift
zstyle -s :urlglobber url-local-schema localschema '|'
zstyle -s :urlglobber url-other-schema otherschema '|'
for arg
do
case "${arg}" in
((${~localschema}):/(|/localhost)/*)
globbed=( ${~${arg##ftp://(localhost|)}} )
args[$#args+1]=( "${(M)arg##(${~localchema})://(localhost|)}${(@)^globbed}" )
;;
((${~otherschema}):*) args[${#args}+1]="$arg";;
(*) args[${#args}+1]=( ${~arg} );;
esac
done
"$command" "${(@)args}"
}
alias globurl='noglob urlglobber '
# Finally, define (and execute if necessary) the function we really want
function url-quote-magic {
setopt localoptions noksharrays extendedglob
local qkey="${(q)KEYS}"
if [[ "$KEYS" != "$qkey" ]]
then
local lbuf="$LBUFFER$qkey"
if [[ "${(Q)LBUFFER}$KEYS" == "${(Q)lbuf}" ]]
then
local -a words
words=("${(@Q)${(z)lbuf}}")
local urlseps urlmetas urlglobbers localschema otherschema
if [[ "$words[-1]" == (#b)([^:]##):* ]]
then
zstyle -s ":url-quote-magic:$match[1]" url-seps urlseps ''
zstyle -s ":url-quote-magic:$match[1]" url-metas urlmetas ''
fi
zstyle -s :url-quote-magic url-globbers urlglobbers '|'
zstyle -s :urlglobber url-other-schema otherschema '|'
if [[ "$words[1]" == ${~urlglobbers} ]]
then
zstyle -s :urlglobber url-local-schema localschema '|'
else
localschema=' '
fi
case "$words[-1]" in
(*[\'\"]*) ;;
((${~localschema}):/(|/localhost)/*)
[[ "$urlseps" == *"$KEYS"* ]] &&
LBUFFER="$LBUFFER\\" ;;
((${~otherschema}):*)
[[ "$urlseps$urlmetas" == *"$KEYS"* ]] &&
LBUFFER="$LBUFFER\\" ;;
esac
fi
fi
zle .self-insert
}
# Handle zsh autoloading conventions
[[ -o kshautoload ]] || url-quote-magic "$@"
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