I think I don't find it as annoying as you.
You probably should extend the built-in syntax highlighter which is invoked
with <with|mode|prog|lang|c++|.....> but doesn't have much language support
right now.
Sam
On Thu, Aug 11, 2011 at 9:57 PM, Michael Lachmann <lachm...@eva.mpg.de>wrote:
> Hi,
>
> As I mentioned before, I implemented some kind of syntax highlighting in
> the R TeXmacs module. Now I'm using it, and I noticed something somewhat
> annoying.
>
> The highlighting is implemented by embedding TeXmacs colors into the R code
> as it is displayed. But what happens is that then when I move the cursor in
> the code, there is one additional cursor movement needed for every color
> change. Because of this, editing the code becomes a bit tedious... is this
> extra cursor movement really necessary? I guess it is so that you can
> continue with or without every style. But isn't it possible to just define a
> consistent pattern? For example, when you go from one style to another, then
> at the boundary you take the next style. Of course it gets more complicated
> when you are at the boundary of several styles.
>
> Or one could have special movement keys that allow fine movement.
>
> When TeXmacs does the highlighting itself, no styles are used.. text is
> just rendered automatically with different colors - for example in
> displaying scheme code. Then cursor movement is fluid.
>
> For example, try to paste the following into a TeXmacs buffer...
>
> -----
> <\verbatim>
> read.LnS.sample = \
> <with|color|#006|function><with|color|#006|(><with|color|#1A1|filename><with|color|#006|)>
> <with|color|#006|{>
>
> \ \ \ \ con <with|color|#447|=>
> <with|color|#209|gzfile><with|color|#006|(>filename<with|color|#006|)>
>
> \ \ \ \
> a<with|color|#447|=><with|color|#209|readChar><with|color|#006|(>con<with|color|#006|,><with|color|#11D|10><with|color|#006|^><with|color|#11D|9>,useBytes=T<with|color|#006|)>
>
> \ \ \ \ <with|color|#209|close><with|color|#006|(>con<with|color|#006|)>
>
> \ \ \ \
> b<with|color|#447|=><with|color|#209|strsplit><with|color|#006|(>a<with|color|#006|,><with|color|#500|"\\n">,fixed=T,useBytes=T<with|color|#006|)>[[1]]
>
> \ \ \ \
> bb<with|color|#447|=>strsplit(b<with|color|#006|,><with|color|#080|split><with|color|#080|=><with|color|#500|"
> ">,fixed=T,useBytes=T<with|color|#006|)>
>
> \ \ \ \
> d<with|color|#447|=>bb<with|color|#006|[><with|color|#11D|3><with|color|#006|:><with|color|#11D|7><with|color|#006|]>
>
> \ \ \ \
> dd<with|color|#447|=><with|color|#209|matrix><with|color|#006|(><with|color|#209|as.numeric><with|color|#006|(><with|color|#209|unlist><with|color|#006|(>d<with|color|#006|)><with|color|#006|)><with|color|#006|,><with|color|#080|nrow><with|color|#080|=><with|color|#209|length><with|color|#006|(>d<with|color|#006|[[><with|color|#11D|1><with|color|#006|]><with|color|#006|]><with|color|#006|)><with|color|#006|)><with|color|#006|[><with|color|#006|-><with|color|#11D|1><with|color|#006|,><with|color|#006|]>
>
> \ \ \ \ dd
>
> <with|color|#006|}>
> </verbatim>
> ----
> and try to edit the code :)
>
>
> Michael
>
>
>
>
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