Subject:
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Any Emacs/LDraw users?
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Newsgroups:
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lugnet.cad
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Date:
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Mon, 15 Feb 1999 12:32:38 GMT
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Viewed:
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1158 times
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I'm an Emacs user myself, and for Emacs users it is very common to make
a new major mode whenever one encounters a new data format. So I have
started making a major mode for editing LDraw DAT files in Emacs.
It is still very unfinished, but for people already using Emacs, it may
be worthwile to check out. So far, this is what I have implemented:
o Automatically colours the buffer with font-lock according to the
contents. Here's a screenshot to explain what I mean:
http://www.math.uio.no/~fredrigl/technic/ldraw-mode/screenshot.gif
Note that the line in which the cursor is located has a red warning
font because it is syntactically wrong. This feature enables you to
quickly discover errors.
Also note the two levels of inlining which has been performed. More
on this further down.
o User setable number of decimals to preserve. Defaults to two
decimals.
o Hitting C-c C-q cleans up the current line. That is, it removes all
surplus whitespace, rounds all digits, removes trailing ".00"'s and so
on.
o Functions can easily be repeated over a number of lines. As an
example, hitting C-u C-c C-q will apply the "clean-up" function to all
lines. Hitting C-u - 6 C-c C-q applies it to the six preceding lines
and so on.
o Parts, lines and polygons can be moved by typing C-c C-m. If you
want to move the five following lines, say, type C-u 5 C-c C-m.
o Parts, lines and polygons can be turned by typing C-c C-t. Typing
C-u C-c C-t will turn _all_ lines in the model simultaneously.
o Sub-Models, Parts and primitives can be inlined by hitting C-c C-i.
This can be done recursively, so that parts contained in an inlined
sub-model can themselves be inlined. Note that the inliner does not
handle the special colour 24 in the inlined parts yet.
TODO:
Here's a list of things I plan to add in the future:
o LEdit emulation mode. At the user's option, the editor may be turned
into a LEdit emulator which mimics the behavior of LEdit. That way,
experienced LEdit users can quickly add parts, rotate them, and so on.
Obviously, it will not actually render the parts, but all other
aspects of LEdit will be emulated. Exit the emulator by pressing "ESC
F E", as usual.
o Pull down menus. I normally don't use pull down menus on Emacs, but I
figure other people like them, so they should be added for the LDraw
functions.
o Interaction with LDLITE/LDraw. Render all or parts of the model
edited by launching LDLITE or LDraw. So far, I have only used Emacs
on my Linux system, so I haven't implemented this yet.
o Handle indentation.
o Handle special LDLITE declarations.
o Better documentation.
Here's the GPL'ed sourced for the LDraw major mode:
http://www.math.uio.no/~fredrigl/technic/ldraw-mode/ldraw-mode.el
Please report any bugs, and issue any questions to me (or to the
newsgroup). I have only tested this on my Linux system, but I assume it
should also run on an Emacs running in the Windows environment, possibly
with some modifications.
Fredrik
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Message has 2 Replies:
 | | Re: Any Emacs/LDraw users?
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| Fredrik Glöckner (fredrik.glockner@bio.uio.no) announced LDraw mode for Emacs. I'll have a look. Play well, Jacob ---...--- -- E-mail: sparre@nbi.dk -- -- Web...: <URL:(URL) -- ---...--- LDraw FAQ: <URL:(URL) (26 years ago, 15-Feb-99, to lugnet.cad)
| | | Re: Any Emacs/LDraw users?
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| Wow! Excellent! As a long time emacs user, I'm very impressed. Since I often have trouble remembering part numbers, any chance of adding a query-lookup? E.g. if I have the cursor on the string "wing", and I do M-x-ldraw-lookup, I would get a propt (...) (26 years ago, 21-Feb-99, to lugnet.cad)
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