add isbn to bibtex and fix several substring typos

diff --git a/doi-utils.org b/doi-utils.org
index ede56829d821f76d34c41a3ee36a86e89d742f6a..b6c54334efd2ba98cd856f7bbc79acbadfcc69c6 100644 (file)
--- a/doi-utils.org
+++ b/doi-utils.org
@@ -570,7 +570,7 @@ prompt. Otherwise, you have to type or pste in a DOI."
                              (s-match "^10" (buffer-substring
                                              (region-beginning)
                                              (region-end))))
-                      (buffer-susbstring (region-beginning) (region-end)))
+                      (buffer-substring (region-beginning) (region-end)))
                      ;; if the first entry in the kill-ring looks
                      ;; like a DOI, let's use it.
                      ((if (s-match "^10" (car kill-ring))
@@ -914,7 +914,7 @@ error."
                 (cond
                  ;; If region is active assume we want it
                  ((region-active-p)
-                  (buffer-susbstring (region-beginning) (region-end)))
+                  (buffer-substring (region-beginning) (region-end)))
                  ;; type or paste it in
                  (t
                   nil)))
@@ -1248,15 +1248,97 @@ Here is a list of helm candidates
 
 
 * ISBN utility
-This is not really a doi utility, but I am putting it here for now since it is just a single function. It looks up an ISBN and takes you to a page that has a bibtex entry. I am not crazy about that, but I have not found an isbn metadata source yet.
+These are not really doi utilities, but for now I am putting them here.
+
+I found this on the web. It can be handy, but the bibtex entry has a lot of stuff in it.
 
 #+BEGIN_SRC emacs-lisp :tangle doi-utils.el
-(defun isbn-to-bibtex (isbn)
+(defun isbn-to-bibtex-lead (isbn)
  "Search lead.to for ISBN bibtex entry. You have to copy the entry if it is on the page to your bibtex file."
  (interactive "ISBN: ")
 (browse-url
 (format "http://lead.to/amazon/en/?key=%s+&si=all&op=bt&bn=&so=sa&ht=us" isbn)))
 #+END_SRC
+
+Here we get isbn metadata and build a bibtex entry.
+http://xisbn.worldcat.org/xisbnadmin/doc/api.htm#getmetadata
+
+
+#+BEGIN_SRC emacs-lisp :tangle doi-utils.el
+(defun isbn-to-bibtex (isbn bibfile)
+  "Get bibtex entry for ISBN and insert it into BIBFILE unless an
+entry with the generated key already exists in the file. "
+  (interactive
+   (list
+    (read-input
+     "ISBN: "
+     ;; now set initial input
+     (cond
+      ;; If region is active assume we want it
+      ((region-active-p)
+       (buffer-substring (region-beginning) (region-end)))
+      ;; if first entry in kill ring starts with a number assume it is an isbn
+      ;; and use it as the guess
+      ((if (s-match "^[0-9]" (car kill-ring))
+          (car kill-ring)))
+      ;; type or paste it in
+      (t
+       nil)))
+    (ido-completing-read
+     "Bibfile: "
+     (append (f-entries "." (lambda (f) (f-ext? f "bib")))
+            org-ref-default-bibliography))))
+
+  (let* ((results (with-current-buffer
+                     (url-retrieve-synchronously
+                      (format
+                       "http://xisbn.worldcat.org/webservices/xid/isbn/%s?method=getMetadata&format=json&fl=*"
+                       isbn))
+                   (json-read-from-string
+                    (buffer-substring url-http-end-of-headers (point-max)))))
+        (status (cdr (nth 1 results)))
+        (metadata (aref (cdar results) 0))
+        (new-entry)
+        (new-key))
+
+    (unless (string= "ok" status)
+      (error "Status is %s" status))
+
+    (setq new-entry
+         (concat "\n@book{,\n"
+                 (mapconcat
+                  'identity
+                  (loop for field in (-sort 'string-lessp (mapcar 'car metadata))
+                        collect
+                        (format "  %s={%s}," field (cdr (assoc field metadata))))
+                  "\n")
+                 "\n}\n"))
+
+    ;; build entry in temp buffer to get the key
+    (setq new-entry (with-temp-buffer
+                     (insert new-entry)
+                     (org-ref-clean-bibtex-entry)
+                     (setq new-key (bibtex-key-in-head))
+                     (buffer-string)))
+    (find-file bibfile)
+    (goto-char (point-min))
+    (when (search-forward new-key nil t)
+      (beep)
+      (setq new-key (read-input
+                    (format  "%s already exists. Enter new key (C-g to cancel): " new-key)
+                    new-key)))
+    (goto-char (point-max))
+    (insert new-entry)
+    ;; set key
+    (bibtex-beginning-of-entry)
+    (re-search-forward bibtex-entry-maybe-empty-head)
+    (if (match-beginning bibtex-key-in-head)
+       (delete-region (match-beginning bibtex-key-in-head)
+                      (match-end bibtex-key-in-head)))
+    (insert new-key)
+    (bibtex-fill-entry)))
+#+END_SRC
+
 * end of file
 #+BEGIN_SRC emacs-lisp :tangle doi-utils.el
 (provide 'doi-utils)