codegen C to generate candidates

codegen.template

@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+@(define (output-charset num cset)
+  @list{
+    unsigned char @(format "cset~a" num) [] = {
+      @(string-join (map number->string cset) ",")
+    };
+    size_t @(format "cset~a_size" num) = @(length cset);
+
+  })
+
+@(for/list ([i (in-naturals)] [cset (in-vector pattern)])
+  (output-charset i cset))
+
+int main() {
+    char buf [ @(+ 2 (vector-length pattern)) ];
+    buf [ @(vector-length pattern) ] = '\n';
+    buf [ @(add1 (vector-length pattern)) ] = '\0';
+    @(for/list ([num (in-naturals)] [cset (in-vector pattern)])
+      (define iter (format "i~a" num))
+      (define cset (format "cset~a" num))
+      (define csetsize (format "cset~a_size" num))
+      @list{
+        for (size_t @iter = 0; @iter < @csetsize ; @iter ++) @"{"
+          @"buf[" @num @"]" = @cset @"[" @iter @"];"
+          @"\n"
+      })
+
+    fwrite(buf, 1, @(add1 (vector-length pattern)), stdout);
+
+    @(for/list ([cset (in-vector pattern)]) "}")
+}
+

crossfire/main.rkt

@@ -1,6 +1,8 @@
 #lang racket/base
 
 (require racket/bool racket/function racket/match racket/set racket/vector
+         (rename-in scribble/text/output [output scribble-output])
+         scribble/text
          (for-syntax racket/base racket/syntax))
 
 (module+ test
@@ -17,7 +19,20 @@
     #:once-each
     [("-n" "--name") name "Who to say hello to" (set-box! who name)]
     #:args ()
-    (printf "hello ~a~n" (unbox who))))
+    (void)))
+
+
+;; templating infrastructure
+
+(define (eval-template file vars [port (current-output-port)])
+  (define cs (current-namespace))
+  (define output-exp
+    (parameterize ([current-namespace (make-base-namespace)])
+      (namespace-attach-module cs 'scribble/text)
+      (namespace-require 'scribble/text)
+      (hash-for-each vars namespace-set-variable-value!)
+      (eval `(include/text ,file))))
+  (scribble-output output-exp port))
 
 
 ;; manifest.rkt processing
@@ -99,12 +114,16 @@
               (permute (add1 i) gen))]))
   (permute 0 gen))
 
+;; ok gamer move time
+(define (pattern-codegen pattern)
+  (eval-template "codegen.template" (hash 'pattern pattern)))
+
 (define-values [name mode command pattern]
   (parse-manifest
     '((name "test")
       (mode stdin)
       (command ("meme"))
-      (pattern "test?dx?d"))))
+      (pattern "test?d?a?a?a"))))
 
-(displayln (pattern-count pattern))
-(pattern-generate pattern (current-output-port))
+; (pattern-generate pattern (current-output-port))
+(pattern-codegen pattern)