This commit expands the #+resname: line to include a sha1 hash of
the contents of the source-code block (including header arguments).
This hash is saved in raw text in the resname line. When a source
block is evaluated it's hash is recalculated and checked against the
hash in it's results line, if they are equal the current results are
returned with no recalculation.
Optional prefix argument when evaluating a source block will force
re-calculation.
caching behavior can be inhibited through the use of the :nocache
header argument. for global inhibition of caching add :nocache to
the `org-babel-default-header-args' variable.
it is now possible to only assign a portion of a value to a variable
in a source block. So for example the following will only assign
the second and third lines of the table 'example-table' to the
variable 'data'
:var data=example-table[1:2]
and the following will only assign the second column of the first row
:var data=example-table[0,1]
note that all indices are 0 based
it is possible to index into the results of source-code blocks as
well as tables. any number of dimensions can be indexed as long as
they are separated by ','s and ranges can be indexed using the ':'
operator. for more information on indexing behavior see
`org-babel-ref-index-list'
With this change, if :file <filepath> is specified, ruby and python
blindly output a link to <filepath>. Responsibility for creating the
contents in <filepath> lies with the python/ruby code.
Doug Hellmann writes:
> Some calendar systems (Google, Zimbra) handle subscriptions to
> multiple calendars (or to an account) by grouping them under a single
> caldav directory in the calendar tree. org-mac-iCal assumes there is
> only one ics file created per caldav directory, so while it *creates*
> all of the needed merged ics files, it only copies one of them to
> ~/Library/Calendar before importing the contents into the diary.
A "functional-style" source block is one in which the name is followed
immediately by a parenthesised argument. An example is the following
"function", which generates n uniform random numbers:
\#+srcname: rand(n)
\#+begin_src R
runif(n)
\#+end_src
With these changes, such source blocks are passed over to the export
machinery in the following form:
\#+begin_src org-babel-lob
<function-def-keyword> rand(n):
\#+end_src
\#+begin_src R <switches>
<indent>runif(n)
\#+end_src
where <function-def-keyword> is the value of
org-babel-function-def-export-keyword, which defaults to "function",
<switches> are the src block switches that belonged to the original
block, and <indent> is the whitespace indent of the function body, the
width of which is determined by org-babel-function-def-export-indent.
org-babel-lob is a simple major mode responsible for fontification of
the blocks corresponding to the function definition line (as opposed
to the function body).
This adds a new terminal (sixth) element to the list returned from
org-babel-get-src-block-info. It is used when exporting the code of
"functional style" code blocks, i.e. those in which the name of the
block is followed by a parenthesised argument list (or an empty pair
of parentheses).
- org-babel-get-src-block-info returns the name of the block as a new
fifth element.
- org-babel-get-src-block-info incorporates the parenthesised variable
references into the header arg list, with precendence given to
explicit :var references, as before.
- remove function org-babel-get-src-block-name
- remove function org-babel-get-src-block-function-args
org-babel-get-src-block-function-args now returns a list
(lang body params-alist switches srcname)
where, unless a non-nil value for the optional argument is passed,
params-alist contains any :var entries acquired from the parenthesised
argument list following the srcname.
The switches are flags like -n and must *precede* the first colon
after the language (i.e. precede the first header argument). So the
general src block syntax is
\#+begin_src lang <switches> :header1 val1 :header2 val2 ...
...
org-babel-get-src-block-info now returns a list
(lang body params-alist switches)