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library-of-babel: more flexible reading of files into elisp

This commit is contained in:
Eric Schulte 2010-07-19 17:00:20 -07:00
parent a618566cd6
commit d6208a7fe5
1 changed files with 14 additions and 15 deletions
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29
contrib/babel/library-of-babel.org
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@ -29,26 +29,25 @@ A collection of simple utility functions
* File I/O
** reading and writing files
Read the contents of the file at =path= into a string.
Read the contents of the file at =file=. The =:results vector= and
=:results scalar= header arguments can be used to read the contents of
file as either a table or a string.
#+srcname: read
#+begin_src emacs-lisp :var path=""
(with-temp-filebuffer path
(buffer-substring (point-min) (point-max)))
#+begin_src emacs-lisp :var file=""
(if (member "vector" result-params)
(with-temp-buffer
(org-table-import (expand-file-name file) nil)
(org-table-to-lisp))
(with-temp-buffer
(insert-file-contents (expand-file-name file))
(buffer-string)))
#+end_src
Read the lines of the file at =path= into a list.
#+srcname: read-lines
#+begin_src emacs-lisp :var path=""
(split-string
(with-temp-filebuffer path
(buffer-substring (point-min) (point-max))))
#+end_src
Write =data= to a file at =path=. If =data= is a list, then write it
Write =data= to a file at =file=. If =data= is a list, then write it
as a table in traditional Org-mode table syntax.
#+srcname: write
#+begin_src emacs-lisp :var data="" :var path=""
(with-temp-file path
#+begin_src emacs-lisp :var data="" :var file=""
(with-temp-file file
(org-babel-insert-result data))
nil
#+end_src