Re: [babel][patch] BUG in inline source blocks

[Martyn Jago <martyn.jago@btinternet.com>]

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Martyn Jago <martyn.jago@btinternet.com> writes:

> Hi,
>
> Andreas Leha <andreas.leha@med.uni-goettingen.de> writes:
>
>> Hi all,
>>
>> I experience unexpected behaviour when an inline source block is not
>> preceded by whitespace.
>>
>> Example:
>> =======================
>> * Test inline
>>   This is a functional inline src_R{print("source block")}.
>>
>>   This (src_R{print("here")}) is not.
>> =======================
>>
>> Regards,
>> Andreas 
>
> I can confirm this behaviour and provide a patch to allow for inline
> source blocks to be preceded by punctuation, or, for instance, enclosed
> in parenthesis, as in Andreas' example. Patch is attached for
> consideration.
>
> Best, Martyn

This is an updated version of the previous patch, with debug noise
removed, and a couple of extra tests.

Best, Martyn


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From b46e7a496c30f683c50759013ad39a9d8c6ff42b Mon Sep 17 00:00:00 2001
From: Martyn Jago <martyn.jago@btinternet.com>
Date: Thu, 26 Jan 2012 19:48:35 +0000
Subject: [PATCH] Fix for where inline source block is not preceded by whitespace but by
  punctuation (reported by Andreas Leha).

* lisp/ob.el: Fix for where inline source block is not preceded by
whitespace but by punctuation.

* testing/lisp/test-ob.el: Regression tests.
---
 lisp/ob.el              |   30 ++++++++++----------
 testing/lisp/test-ob.el |   69 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+), 15 deletions(-)

diff --git a/lisp/ob.el b/lisp/ob.el
index 70c258f..fd6a897 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -170,24 +170,24 @@ not match KEY should be returned."
 (defun org-babel-get-inline-src-block-matches()
   "Set match data if within body of an inline source block.
 Returns non-nil if match-data set"
-  (let ((src-at-0-p (save-excursion
+  (let* ((src-at-0-p (save-excursion
 		      (beginning-of-line 1)
 		      (string= "src" (thing-at-point 'word))))
 	(first-line-p (= 1 (line-number-at-pos)))
-	(orig (point)))
-    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
-			    (first-line-p "[ \t]src_")
-			    (t "[ \f\t\n\r\v]src_")))
-	  (lower-limit (if first-line-p
-			   nil
-			 (- (point-at-bol) 1))))
-      (save-excursion
-	(when (or (and src-at-0-p (bobp))
-		  (and (re-search-forward "}" (point-at-eol) t)
-		       (re-search-backward search-for lower-limit t)
-		       (> orig (point))))
-	  (when (looking-at org-babel-inline-src-block-regexp)
-	    t ))))))
+	(orig (point))
+	(search-for (cond ((and src-at-0-p first-line-p  "src_"))
+			  (first-line-p "[ \t[:punct:]]src_")
+			  (t "[ \f\t\n\r\v[:punct:]]src_")))
+	(lower-limit (if first-line-p
+			 nil
+		       (- (point-at-bol) 1))))
+    (save-excursion
+      (when (or (and src-at-0-p (bobp))
+		(and (re-search-forward "}" (point-at-eol) t)
+		     (re-search-backward search-for lower-limit t)
+		     (> orig (point))))
+	(when (looking-at org-babel-inline-src-block-regexp)
+	  t )))))
 
 (defvar org-babel-inline-lob-one-liner-regexp)
 (defun org-babel-get-lob-one-liner-matches()
diff --git a/testing/lisp/test-ob.el b/testing/lisp/test-ob.el
index 7dccd22..f4363f6 100644
--- a/testing/lisp/test-ob.el
+++ b/testing/lisp/test-ob.el
@@ -430,6 +430,75 @@ this is simple"
 		       (buffer-substring-no-properties
 			(point-min) (point-max)))))))
 
+(ert-deftest test-org-babel/inline-src_blk-preceded-punct ()
+  "Test inline source block where preceded by punctuation"
+
+  ;; inline-src-blk preceded by point
+  (let ((test-line ".src_emacs-lisp[ :results verbatim ]{ \"x\"  }"))
+    (org-test-with-temp-text
+	test-line
+      (forward-char 1)
+      (org-ctrl-c-ctrl-c)
+      (should (string= (concat test-line " =\"x\"=")
+		       (buffer-substring-no-properties
+			(point-min) (point-max))))))
+
+  ;; inline-src-blk preceded by equality
+  (let ((test-line "=src_emacs-lisp[ :results verbatim ]{ \"x\"  }"))
+    (org-test-with-temp-text
+	test-line
+      (forward-char 1)
+      (org-ctrl-c-ctrl-c)
+      (should (string= (concat test-line " =\"x\"=")
+		       (buffer-substring-no-properties
+			(point-min) (point-max))))))
+
+  ;; inline-src-blk enclosed within parenthesis
+  (let ((test-line "(src_emacs-lisp[ :results verbatim ]{ \"x\"  }"))
+    (org-test-with-temp-text
+	(concat test-line ")")
+      (forward-char 1)
+      (org-ctrl-c-ctrl-c)
+      (should (string= (concat test-line " =\"x\"=)" )
+		       (buffer-substring-no-properties
+			(point-min) (point-max))))))
+
+  ;; inline-src-blk enclosed within parenthesis
+  (let ((test-line "{src_emacs-lisp[ :results verbatim ]{ \"x\"  }"))
+    (org-test-with-temp-text
+	(concat test-line "}")
+      (forward-char 1)
+      (org-ctrl-c-ctrl-c)
+      (should (string= (concat test-line " =\"x\"=}")
+		       (buffer-substring-no-properties
+			(point-min) (point-max)))))))
+
+(ert-deftest test-org-babel/inline-src_blk-preceded-by-letter ()
+  "Test inline source block invalid where preceded by letter"
+
+  ;; inline-src-blk preceded by letter
+  (org-test-with-temp-text
+      "asrc_emacs-lisp[ :results verbatim ]{ \"x\"  }"
+    (forward-char 1)
+    (let ((error-result
+	   (should-error
+	    (org-ctrl-c-ctrl-c))))
+      (should (equal `(error "C-c C-c can do nothing useful at this location")
+		     error-result)))))
+
+(ert-deftest test-org-babel/inline-src_blk-preceded-by-number ()
+  "Test inline source block invalid where preceded by number"
+
+  ;; inline-src-blk preceded by number
+  (org-test-with-temp-text
+      "0src_emacs-lisp[ :results verbatim ]{ \"x\"  }"
+    (forward-char 1)
+    (let ((error-result
+	   (should-error
+	    (org-ctrl-c-ctrl-c))))
+      (should (equal `(error "C-c C-c can do nothing useful at this location")
+		     error-result)))))
+
 (ert-deftest test-org-babel/combining-scalar-and-raw-result-types ()
   (org-test-with-temp-text-in-file "
 
-- 
1.7.3.4