From: "Rüdiger Sonderfeld" <ruediger@c-plusplus.de>
To: emacs-orgmode@gnu.org
Cc: Eric Schulte <schulte.eric@gmail.com>
Subject: [PATCH] ob-C: Add list support.
Date: Thu, 06 Jun 2013 19:49:03 +0200 [thread overview]
Message-ID: <2536552.JaI2attv7o@descartes> (raw)
In-Reply-To: <87vc5ri259.fsf@gmail.com>
* lisp/ob-C.el (org-babel-C-var-to-C): Add list support
(org-babel-C-val-to-C-list-type, org-babel-C-val-to-C-type,
org-babel-C-format-val): New functions.
(org-babel-C-ensure-main-wrap, org-babel-execute:C,
org-babel-execute:C++, rg-babel-execute:cpp, org-babel-C++-compiler,
org-babel-C-compiler): Improve docstring.
* testing/examples/ob-C-test.org (string_var): Add required std::
(Array): Add missing ID.
(Matrix): Add tests for list support.
* testing/lisp/test-ob-C.el (ob-C/table): Test succeeds.
(ob-C/list-var, ob-C/vector-var, ob-C/list-list-var): Add tests for
list support.
Signed-off-by: Rüdiger Sonderfeld <ruediger@c-plusplus.de>
---
lisp/ob-C.el | 98 +++++++++++++++++++++++++++++++-----------
testing/examples/ob-C-test.org | 28 +++++++++++-
testing/lisp/test-ob-C.el | 20 ++++++++-
3 files changed, 118 insertions(+), 28 deletions(-)
diff --git a/lisp/ob-C.el b/lisp/ob-C.el
index b1e8a06..e9eec93 100644
--- a/lisp/ob-C.el
+++ b/lisp/ob-C.el
@@ -44,24 +44,24 @@ (defvar org-babel-default-header-args:C '())
(defvar org-babel-C-compiler "gcc"
"Command used to compile a C source code file into an
- executable.")
+executable.")
(defvar org-babel-C++-compiler "g++"
"Command used to compile a C++ source code file into an
- executable.")
+executable.")
(defvar org-babel-c-variant nil
"Internal variable used to hold which type of C (e.g. C or C++)
is currently being evaluated.")
(defun org-babel-execute:cpp (body params)
- "Execute BODY according to PARAMS. This function calls
-`org-babel-execute:C++'."
+ "Execute BODY according to PARAMS.
+This function calls `org-babel-execute:C++'."
(org-babel-execute:C++ body params))
(defun org-babel-execute:C++ (body params)
- "Execute a block of C++ code with org-babel. This function is
-called by `org-babel-execute-src-block'."
+ "Execute a block of C++ code with org-babel.
+This function is called by `org-babel-execute-src-block'."
(let ((org-babel-c-variant 'cpp)) (org-babel-C-execute body params)))
(defun org-babel-expand-body:C++ (body params)
@@ -70,8 +70,8 @@ (defun org-babel-expand-body:C++ (body params)
(let ((org-babel-c-variant 'cpp)) (org-babel-C-expand body params)))
(defun org-babel-execute:C (body params)
- "Execute a block of C code with org-babel. This function is
-called by `org-babel-execute-src-block'."
+ "Execute a block of C code with org-babel.
+This function is called by `org-babel-execute-src-block'."
(let ((org-babel-c-variant 'c)) (org-babel-C-execute body params)))
(defun org-babel-expand-body:c (body params)
@@ -146,10 +146,10 @@ (defun org-babel-C-expand (body params)
body) "\n") "\n")))
(defun org-babel-C-ensure-main-wrap (body)
- "Wrap body in a \"main\" function call if none exists."
+ "Wrap BODY in a \"main\" function call if none exists."
(if (string-match "^[ \t]*[intvod]+[ \t\n\r]*main[ \t]*(.*)" body)
body
- (format "int main() {\n%s\nreturn(0);\n}\n" body)))
+ (format "int main() {\n%s\nreturn 0;\n}\n" body)))
(defun org-babel-prep-session:C (session params)
"This function does nothing as C is a compiled language with no
@@ -163,6 +163,59 @@ (defun org-babel-load-session:C (session body params)
;; helper functions
+(defun org-babel-C-format-val (type val)
+ "Handle the FORMAT part of TYPE with the data from VAL."
+ (let ((format-data (cadr type)))
+ (if (stringp format-data)
+ (cons "" (format format-data val))
+ (funcall format-data val))))
+
+(defun org-babel-C-val-to-C-type (val)
+ "Determine the type of VAL.
+Return a list (TYPE-NAME FORMAT). TYPE-NAME should be the name of the type.
+FORMAT can be either a format string or a function which is called with VAL."
+ (cond
+ ((integerp val) '("int" "%d"))
+ ((floatp val) '("double" "%f"))
+ ((or (listp val) (vectorp val))
+ (lexical-let ((type (org-babel-C-val-to-C-list-type val)))
+ (list (car type)
+ (lambda (val)
+ (cons
+ (format "[%d]%s"
+ (length val)
+ (car (org-babel-C-format-val type (elt val 0))))
+ (concat "{ "
+ (mapconcat (lambda (v)
+ (cdr (org-babel-C-format-val type v)))
+ val
+ ", ")
+ " }"))))))
+ (t ;; treat unknown types as string
+ '("char" (lambda (val)
+ (let ((s (format "%s" val))) ;; convert to string for unknown types
+ (cons (format "[%d]" (1+ (length s)))
+ (concat "\"" s "\""))))))))
+
+(defun org-babel-C-val-to-C-list-type (val)
+ "Determine the C array type of a VAL."
+ (let (type)
+ (mapc
+ #'(lambda (i)
+ (let* ((tmp-type (org-babel-C-val-to-C-type i))
+ (type-name (car type))
+ (tmp-type-name (car tmp-type)))
+ (when (and type (not (string= type-name tmp-type-name)))
+ (if (and (member type-name '("int" "double" "int32_t"))
+ (member tmp-type-name '("int" "double" "int32_t")))
+ (setq tmp-type '("double" "" "%f"))
+ (error "Only homogeneous lists are supported by C. You can not mix %s and %s"
+ type-name
+ tmp-type-name)))
+ (setq type tmp-type)))
+ val)
+ type))
+
(defun org-babel-C-var-to-C (pair)
"Convert an elisp val into a string of C code specifying a var
of the same value."
@@ -173,22 +226,17 @@ (defun org-babel-C-var-to-C (pair)
(setq val (symbol-name val))
(when (= (length val) 1)
(setq val (string-to-char val))))
- (cond
- ((integerp val)
- (format "int %S = %S;" var val))
- ((floatp val)
- (format "double %S = %S;" var val))
- ((or (integerp val))
- (format "char %S = '%S';" var val))
- ((stringp val)
- (format "char %S[%d] = \"%s\";"
- var (+ 1 (length val)) val))
- (t
- (format "u32 %S = %S;" var val)))))
-
+ (let* ((type-data (org-babel-C-val-to-C-type val))
+ (type (car type-data))
+ (formated (org-babel-C-format-val type-data val))
+ (suffix (car formated))
+ (data (cdr formated)))
+ (format "%s %s%s = %s;"
+ type
+ var
+ suffix
+ data))))
(provide 'ob-C)
-
-
;;; ob-C.el ends here
diff --git a/testing/examples/ob-C-test.org b/testing/examples/ob-C-test.org
index 32ab88b..1d0a83f 100644
--- a/testing/examples/ob-C-test.org
+++ b/testing/examples/ob-C-test.org
@@ -24,7 +24,7 @@ * Simple tests
#+source: string_var
#+begin_src cpp :var q="word" :includes '(<iostream> <cstring>) :results silent
- std::cout << q << ' ' << strlen(q);
+ std::cout << q << ' ' << std::strlen(q);
return 0;
#+end_src
@@ -35,6 +35,9 @@ * Simple tests
#+end_src
* Array
+ :PROPERTIES:
+ :ID: 2df1ab83-3fa3-462a-a1f3-3aef6044a874
+ :END:
#+source: array
#+begin_src cpp :includes "<iostream>" :results vector :results silent
for (int i=1; i<3; i++) {
@@ -42,3 +45,26 @@ * Array
}
return 0;
#+end_src
+* Matrix
+ :PROPERTIES:
+ :ID: cc65d6b3-8e8e-4f9c-94cd-f5a00cdeceb5
+ :END:
+#+name: C-matrix
+| 1 | 2 |
+| 3 | 4 |
+
+#+source: list_var
+#+begin_src cpp :var a='("abc" "def") :includes "<iostream>" :results silent
+ std::cout << a[0] << a[1] << sizeof(a)/sizeof(*a) << '\n';
+#+end_src
+
+#+source: vector_var
+#+begin_src cpp :var a='[1 2] :includes "<iostream>" :results silent
+ std::cout << a[0] << a[1] << sizeof(a)/sizeof(*a) << '\n';
+#+end_src
+
+#+source: list_list_var
+#+begin_src cpp :var q=C-matrix :includes "<iostream>" :results silent
+ std::cout << q[0][0] << ' ' << q[1][0] << '\n'
+ << q[0][1] << ' ' << q[1][1] << '\n'; // transpose
+#+end_src
diff --git a/testing/lisp/test-ob-C.el b/testing/lisp/test-ob-C.el
index 4243bb6..4430ceb 100644
--- a/testing/lisp/test-ob-C.el
+++ b/testing/lisp/test-ob-C.el
@@ -57,10 +57,26 @@ (ert-deftest ob-C/preprocessor ()
(ert-deftest ob-C/table ()
"Test of a table output"
- :expected-result :failed
(org-test-at-id "2df1ab83-3fa3-462a-a1f3-3aef6044a874"
(org-babel-next-src-block)
(should (equal '((1) (2)) (org-babel-execute-src-block)))))
+(ert-deftest ob-C/list-var ()
+"Test of a list input variable"
+ (org-test-at-id "cc65d6b3-8e8e-4f9c-94cd-f5a00cdeceb5"
+ (org-babel-next-src-block 1)
+ (should (string= "abcdef2" (org-babel-execute-src-block)))))
+
+(ert-deftest ob-C/vector-var ()
+"Test of a vector input variable"
+ (org-test-at-id "cc65d6b3-8e8e-4f9c-94cd-f5a00cdeceb5"
+ (org-babel-next-src-block 2)
+ (should (equal 122 (org-babel-execute-src-block)))))
+
+(ert-deftest ob-C/list-list-var ()
+ "Test of a list list input variable"
+ (org-test-at-id "cc65d6b3-8e8e-4f9c-94cd-f5a00cdeceb5"
+ (org-babel-next-src-block 3)
+ (should (equal '((1 3) (2 4)) (org-babel-execute-src-block)))))
+
;;; test-ob-C.el ends here
-
--
1.8.3
next prev parent reply other threads:[~2013-06-06 17:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-05 21:20 [PATCH] ob-C: Add list support Rüdiger Sonderfeld
2013-06-06 16:21 ` Eric Schulte
2013-06-06 17:15 ` Rüdiger Sonderfeld
2013-06-06 17:23 ` Eric Schulte
2013-06-06 17:49 ` Rüdiger Sonderfeld [this message]
2013-06-06 18:10 ` Eric Schulte
2013-06-06 18:38 ` Rüdiger Sonderfeld
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