This change provides for better export of named source-code blocks,
with specific support for more attractive html export. The arguments
are included with the source code name, and both the source code name
and code body are wrapped in a div to support styling with css. For
example the following CSS can be used to associate a source-code block
name with it's code body, and to slightly indent the body.
.org-src-container {
border-left: 4px solid gray;
padding: 0.5em 0.5em 0.5em 1em; }
.org-src-container pre {
margin-left: 1em; }
the progress-marker local variable set inside of a let in
org-exp-blocks is used to constrain searches in org-babel-exp to
ensure that a babel block doesn't overwrite non-babel src blocks
When exporting to html the source-code block name will be included
as a <label> immediately preceding the exported code. This <label>
is decorated with the 'org-src-name' css class.
When exporting to LaTeX with the listings package the source-code
block name will be included as a listings \title for the code
block. Currently the name will not be exported when the listings
package is not in use.
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 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.
Currently, python fontification is used for export of these lines, due
to some similarity between python function call syntax and #+lob call
syntax. This is implemented as a language type "babel", mapped to
python in org-src-lang-modes.
merging original change by Dan Davison which generalizes the types
of blocks exported by org-babel to include the following types
- inline
- lob
- block
1) source blocks can now reference source-blocks in other files using
the filename:sourcename syntax
2) on export all references are now made to explicitly point to the
original buffer using the filename:sourcename syntax. This ensures
that all references are correctly resolved on export, even when the
referenced source block has already been processed.
Dan Davison
Eric Schulte