83 lines
2.6 KiB
Common Lisp
83 lines
2.6 KiB
Common Lisp
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(load "data/articles.lisp")
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(defun replace-all (string part replacement &key (test #'char=))
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"Returns a new string in which all the occurences of the part
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is replaced with replacement."
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(with-output-to-string (out)
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(loop with part-length = (length part)
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for old-pos = 0 then (+ pos part-length)
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for pos = (search part string
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:start2 old-pos
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:test test)
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do (write-string string out
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:start old-pos
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:end (or pos (length string)))
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when pos do (write-string replacement out)
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while pos)))
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; load a file as a string
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(defun slurp-file(path)
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(with-open-file (stream path)
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(let ((data (make-string (file-length stream))))
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(read-sequence data stream)
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data)))
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; save a string in a file
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(defun save-file(path data)
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(with-open-file (stream (concatenate 'string "output/" path) :direction :output :if-exists :supersede)
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(format stream data)))
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;; simplify the str replace work
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(defmacro template(before &body after)
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`(progn
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(setf output (replace-all output ,before ,@after))))
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;; simplify the declaration of a new page type
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(defmacro prepare(template &body code)
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`(progn
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(let ((output (slurp-file ,template)))
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,@code
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output)))
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;; generates the html of one only article
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(defun create-article(article &optional &key (tiny t))
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(prepare "template/article.tpl"
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(template "%%Author%%" (if (member :author article) (getf article :author) (getf *config* :webmaster)))
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(template "%%Date%%" (getf article :date))
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(template "%%Title%%" (getf article :title))
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(template "%%Id%%" (getf article :id))
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(template "%%Text%%" (if (and tiny (member :tiny article))
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(getf article :tiny) (slurp-file (format nil "data/~d.txt" (getf article :id)))))))
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;; Layout generation
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(defun generate-layout(body)
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(let ((output (slurp-file "template/layout.tpl")))
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(template "%%Title%%" (getf *config* :title))
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(template "%%Body%%" body)
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output))
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; Homepage generation
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(defun generate-mainpage()
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(format nil "~{~d~}"
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(loop for article in *articles* collect
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(create-article article :tiny t))))
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; produce index.html
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(defun generate-file-index()
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(save-file "index.html"
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(generate-layout (generate-mainpage))))
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; produce html files for articles
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(defun generate-file-article(article)
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(save-file (format nil "article-~d.html" (getf article :id))
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(generate-layout (create-article article :tiny nil))))
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; ENGINE START !
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(defun generate-site()
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(generate-file-index)
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(dolist (article *articles*) (generate-file-article article))
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;;(generate-file-rss)
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)
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(generate-site)
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