org-babel: avoid false positive matches for inline and #+lob constructs

This forces the #+lob regexp to match at the beginning of a line (with
optional preceding whitespace), and requires inline code blocks to be
surrounded by some whitespace.

contrib/babel/lisp/org-babel-exp.el

@@ -74,9 +74,7 @@ options and are taken from `org-babel-defualt-inline-header-args'."
              (replacement (save-match-data
                             (org-babel-exp-do-export
                              (first info) (second info) (third info) 'inline))))
-        ;; (message "%s -> %s" (second info) replacement) ;; debugging
-        (setf end (+ end (- (length replacement)
-                            (+ 6 (length (first info)) (length (second info))))))
+        (setq end (+ end (- (length replacement) (length (match-string 0)))))
         (replace-match replacement t t)))))
 
 (defun org-babel-exp-lob-one-liners (start end)
@@ -145,7 +143,7 @@ options are taken from `org-babel-default-header-args'."
             (format "src_%s{%s}" lang raw))
            (t
             (if (and (stringp raw) (= 0 (length raw)))
-                "=(no results)=" (format "=%S=" raw))))))
+                " =(no results)= " (format " =%S= " raw))))))
       ('block
           (save-excursion ;; org-exp-blocks places us at the end of the block
             (re-search-backward org-babel-src-block-regexp nil t)

contrib/babel/lisp/org-babel-lob.el

@@ -55,7 +55,7 @@ add files to this list use the `org-babel-lob-ingest' command."
 
 ;; functions for executing lob one-liners
 
-(defvar org-babel-lob-one-liner-regexp "#\\+lob:[ \t]+\\([^\(\)\n]+\\)\(\\([^\n]*\\)\)[ \t]*\\([^\n]*\\)")
+(defvar org-babel-lob-one-liner-regexp "^[ \t]*#\\+lob:[ \t]+\\([^\(\)\n]+\\)\(\\([^\n]*\\)\)[ \t]*\\([^\n]*\\)")
 
 (defun org-babel-lob-execute-maybe ()
   "Detect if this is context for a org-babel Library Of Babel

contrib/babel/lisp/org-babel.el

@@ -115,11 +115,11 @@ then run `org-babel-pop-to-session'."
                 "\\([ \t]+\\([^\n]+\\)\\)?\n" ;; match header arguments
                 "\\([^\000]+?\\)#\\+end_src"))
   (setq org-babel-inline-src-block-regexp
-	(concat "src_\\("
+	(concat "[ \t\n]src_\\("
 		(mapconcat 'regexp-quote value "\\|")
 		"\\)"
                 "\\(\\|\\[\\(.*\\)\\]\\)"
-                "{\\([^\n]+\\)}")))
+                "{\\([^\n]+\\)}\\(?:[ \t\n]\\|\\'\\)")))
 
 (defun org-babel-add-interpreter (interpreter)
   "Add INTERPRETER to `org-babel-interpreters' and update