81 lines
2.0 KiB
Org Mode
81 lines
2.0 KiB
Org Mode
* The Sex language
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Sex is a S-expressions language, which transpiles to C.
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Sex is also Chicken, since all source processing and compile-time
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computations are written in Chicken.
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And Chicken is [[https://call-cc.org][R5RS Scheme]].
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* Compilation and usage
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First, get yourself a Chicken. Second, some Chicken deps.
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** Install Chicken Eggs
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By the way, there's a way to make Chicken install eggs non-globally. Refer to
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the documentation for more info:
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https://wiki.call-cc.org/man/5/Extension%20tools#changing-the-repository-location
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~chicken-install fmt getopt-long brev-separate~
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** Compilation
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~make~
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** Usage
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You'll also need a C compiler, so pick any.
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#+begin_src
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cat hello-world.sex | sexc > hello_world.c
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cc hello_world.c -o hello_world
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#+end_src
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* Example
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Here is an example, demonstrating what Sex source looks like, and what
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it compiles too. An avid reader also shall notice how we call Chicken
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procedures in Sex source.
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The Sex source:
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#+begin_src
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(include stdio.h)
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(define (foo)
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"Hello from Chicken code!\n")
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(pub fn int main ((int argc) (char **argv))
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(puts "Hello from Sex!")
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(var (array char 512) name)
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(puts "What is your name?")
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(scanf "%s" &name)
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(printf "Hello, %s!\n" name)
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(printf ,(foo))
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0)
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#+end_src
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The resulting C source:
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#+begin_src
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#include <stdio.h>
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int main (int argc, char **argv) {
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puts("Hello from Sex!");
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char name[512];
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puts("What is your name?");
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scanf("%s", &name);
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printf("Hello, %s!\n", name);
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printf("Hello from Chicken code!\n");
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return 0;
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}
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#+end_src
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* Features
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** Full C interoperability
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Just ~(include "Your/Favourite/Library.h")~ and use it as you would
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have is C.
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For hardcore fans of traditional Lisp naming convention,
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Sex offers automatic unkebabification of all symbols, i.e. no more
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ugly ~GL_ARRAY_BUFFER~ s in your code, they may be writted in their
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proper form: ~GL-ARRAY-BUFFER~.
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** Use an established environment for development
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As Sex is S-expressions, you always have Emacs with paredit as your
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best option.
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** COMING SOON: Polymorhpism
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