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Re: [Texmacs-dev] Literate Programming in TeXmacs?

From: Ralf Hemmecke
Subject: Re: [Texmacs-dev] Literate Programming in TeXmacs?
Date: Tue, 22 May 2007 01:54:12 +0200
User-agent: Thunderbird (X11/20070326)

On 05/21/2007 10:20 PM, Todd Wilson wrote:
Felix Breuer wrote:
A simple implementation that serves both purposes might look as
follows. Suppose snippets of code in the document are wrapped in an
environment like


where label is an arbitrary string that marks which snippets belong
together and body is an arbitrary TeXmacs tree that is "the code".

A slightly more general but useful extension of this would be to use two labels, one for "import" and one for "export". This would allow you to have multiple files/sessions that shared initial segments (i.e., file/session trees). For example,


would create two files/sessions with bodies body0+body1 and body0+body2. This would be more in line with languages that have the means to do #include's, and would also make possible a kind of "exploratory" session, where different approaches to the main line can be highlighted and developed without interfering with the main-line development.

Todd Wilson

Let me translate what you want into noweb syntax.

%---BEGIN file.nw
blah blah blah

<<my imports>>=
some import statements go here

more blah blah

<<my imports>>
more code

even more blah blah

<<my imports>>
some other code

%---END file.nw

Here is what you get if you use notangle.

>notangle -Rfoo file.nw
some import statements go here
more code
>notangle -Rbar file.nw
some import statements go here
some other code

Do you see the difference to your two argument "lp-code"? Or am I missing your point?


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