mirror of
https://github.com/rkd77/elinks.git
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163 lines
5.0 KiB
Scheme
163 lines
5.0 KiB
Scheme
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;;; USER CODE
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(use-modules (ice-9 optargs) ;let-optional
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(ice-9 regex)
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(srfi srfi-2) ;and-let*
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(srfi srfi-8) ;receive
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(srfi srfi-13) ;string-lib
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)
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;;; goto-url-hooks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Handle search URLs
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;; Makes a searcher routine. If the routine is called without any
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;; arguments, return the home page location. Otherwise, construct a
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;; URL searching for the arguments specified.
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;; e.g.
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;; (define f (make-searcher "http://www.google.com/"
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;; "http://www.google.com/search?q="
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;; "&btnG=Google%20Search"))
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;; (f '())
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;; => "http://www.google.com/"
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;; (f '("google" "me"))
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;; => "http://www.google.com/search?q=google%20me&btnG=Google%20Search"
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(define (make-searcher home-page prefix . maybe-postfix)
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(let-optional maybe-postfix ((postfix ""))
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(lambda (words)
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(if (null? words)
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home-page
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(string-append prefix (string-join words "%20") postfix)))))
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;; TODO: ,gg -> gg: format update to the standard ELinks one. --pasky
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(define goto-url-searchers
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`((",gg" . ,(make-searcher "http://www.google.com/"
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"http://www.google.com/search?q=" "&btnG=Google%20Search"))
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(",fm" . ,(make-searcher "http://www.freshmeat.net/"
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"http://www.freshmeat.net/search/?q="))
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(",dict" . ,(make-searcher "http://www.dictionary.com/"
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"http://www.dictionary.com/cgi-bin/dict.pl?db=%2A&term="))
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(",wtf" . ,(make-searcher "http://www.ucc.ie/cgi-bin/acronym?wtf"
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"http://www.ucc.ie/cgi-bin/acronym?"))))
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(add-hook! goto-url-hooks
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(lambda (url)
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(let* ((words (string-tokenize url))
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(key (car words))
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(rest (cdr words)))
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(cond ((assoc key goto-url-searchers) =>
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(lambda (x) ((cdr x) rest)))
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(else #f)))))
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;;; goto-url-hooks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Handle simple URLs
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(define goto-url-simples
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`((",forecast" . "http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?IDV10450.txt")
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(",local" . "XXXXXXXXXXXXXXXXXXX")
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))
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(add-hook! goto-url-hooks
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(lambda (url)
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(cond ((assoc url goto-url-simples) => cdr)
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(else #f))))
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;;; goto-url-hooks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Expand ~/ and ~user/ URLs
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(define (home-directory . maybe-user)
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(let-optional maybe-user ((user (cuserid)))
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(and-let* ((user (catch 'misc-error
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(lambda () (getpwnam user))
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(lambda ignore #f))))
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(passwd:dir user))))
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(define (expand-tilde-file-name file-name)
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(and (string-prefix? "~" file-name)
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(let* ((slash/end (or (string-index file-name #\/)
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(string-length file-name)))
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(user (substring file-name 1 slash/end)))
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(string-append (if user
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(home-directory)
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(home-directory user))
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(substring file-name slash/end)))))
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(add-hook! goto-url-hooks
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(lambda (url)
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(and (string-prefix? "~" url)
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(expand-tilde-file-name url))))
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;;; pre-format-html-hooks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Mangle linuxgames.com pages
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(add-hook! pre-format-html-hooks
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(lambda (url html)
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(and (string-contains url "linuxgames.com")
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(and-let* ((start (string-contains html "<CENTER>"))
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(end (string-contains html "</center>" (+ start 1))))
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(string-append (substring/shared html 0 start)
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(substring/shared html (+ end 10)))))))
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;;; pre-format-html-hooks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Mangle dictionary.com result pages
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(add-hook! pre-format-html-hooks
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(lambda (url html)
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(and (string-contains url "dictionary.reference.com/search?")
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(and-let* ((m (string-match
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(string-append
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"<table border=\"0\" cellpadding=\"2\" width=\"100%\">"
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".*<td width=\"120\" align=\"center\">")
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html)))
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(string-append "<html><head><title>Dictionary.com lookup</title>"
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"</head><body>"
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(regexp-substitute/global #f
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"<br>\n<p><b>" (match:substring m 0)
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'pre "<br>\n<hr>\n<p><b>" 'post))))))
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;;; get-proxy-hooks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Some addresses require a special proxy
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(add-hook! get-proxy-hooks
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(lambda (url)
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(and (or (string-contains url "XXXXXXXXXXXXXX")
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(string-contains url "XXXXXXXXXXXXXX"))
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"XXXXXXXXXXXXXXXXXXXXXXXXXXX")))
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;;; get-proxy-hooks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Some addresses work better without a proxy
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(add-hook! get-proxy-hooks
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(lambda (url)
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(and (or (string-contains url "XXXXXXXXXXXXXXXXXXX")
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(string-contains url "XXXXXXXXXX"))
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"")))
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;;; quit-hooks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Delete temporary files when quitting
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(define temporary-files '())
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(add-hook! quit-hooks
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(lambda ()
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(for-each delete-file temporary-files)))
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;;; The end
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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