s-expressions, c, css and javascript

[tantalum]

hi

last time i mentioned it was a few years ago, and i just thought i let 
you know that sph-sc got some interesting updates recently, and plcss 
and sescript (as well as sph-lib) are still actively maintained.

"sc", for those who have not heard of it, is c written with 
s-expressions. it looks a lot like scheme, but it is actually mostly a 
1:1 translation, like from (+ 1 2) to 1 + 2. it does not add new 
fundamental semantics or extra c code of its own. i still think it is 
fun to write in because it abstracts all of the various syntactic 
patterns that c has. for example it is now easy to use arbitrarily 
complex function pointers with "(function-pointer return-type types 
...)" in place of type identifiers. for example, a variable declaration 
looks like this: "(define b int)". a function pointer variable 
declaration can look like this: "(define b (function-pointer 
(function-pointer char int) double))" - a pointer to a function 
returning a function. granted, the corresponding c code is shorter: 
"char(*(*b)(double))(int);" but the sc syntax is consistent, not "inside 
out" like the c syntax, and uses english words to tell about what it is

"sescript" is very similar to sc, it is like sc but for javascript or 
ecmascript. javascript on its own already feels more like scheme than c 
because of its use of anonymous first-class functions. sescript adds 
features like "let", implicit return and even an r6rs library form. 
sometimes i was able to copy code between scheme and sescript without 
change because it is so similar.

"plcss" creates css. it is written in less than 90 lines of scheme (but 
imports a few bindings) and can offer most features of or more than 
tools like sass and lesscss.

for details and examples, here links to the project homepages:
sc: http://sph.mn/content/3d3
sescript: http://sph.mn/content/413
plcss: http://sph.mn/content/e93

while we are at it, i recently made a time and calendar calculation 
library from scratch (which was pretty difficult, if anyone wants to 
check out how this can be done, see the "time" libraries in sph-lib 
(http://files.sph.mn/sourcecode/sph-lib/)) and this went into the 
calendar on http://ytilitu.xyz/ , which runs on guile.