feat(libhectic): arenas

package/c/hmpl/default.nix

@@ -1,7 +1,7 @@
 { stdenv, gcc, lib, libhectic }:
 
 stdenv.mkDerivation {
-  pname = "libhectic";
+  pname = "hmpl";
   version = "1.0";
   src = ./.;
   doCheck = true;
@@ -11,14 +11,15 @@ stdenv.mkDerivation {
   buildPhase = ''
     mkdir -p target
     ${gcc}/bin/cc -Wall -Wextra -g \
-      -pedantic -fsanitize=address -c hmpl.c \
-      -l:libhectic.a -o target/libhectic.o
+      -pedantic -fsanitize=address hmpl.c \
+      -l:libhectic.a -o target/hmpl
   '';
 
   checkPhase = '' '';
 
   installPhase = ''
-    mkdir -p $out/lib $out/include
+    mkdir -p $out/bin
+    cp target/hmpl $out/bin/hmpl
   '';
 
   meta = {

package/c/hmpl/hmpl.c

@@ -0,0 +1,87 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+//#include "libhmpl.h"
+#include "libhectic.h"
+
+#define KB128 131072
+
+// CREATE OR REPLACE FUNCTION common.render_template_placeholders(result TEXT, context JSONB, prefix CHAR(1) DEFAULT '')
+// RETURNS text LANGUAGE plpgsql AS $$
+// DECLARE
+//   simple_start INT;
+//   simple_end INT;
+//   simple_key TEXT;
+//   replacement TEXT;
+//   first_char CHAR(1);
+//   _offset INT := 0;
+// 
+//   start_pattern CHAR(3);
+//   start_pattern_length INT;
+// BEGIN
+//   start_pattern = '{{' || prefix;
+//   start_pattern_length = char_length(start_pattern);
+// 	 
+//   LOOP
+//     -- Locate the start of the simple key marker.
+//     simple_start := strpos(substring(result from _offset), start_pattern);
+//     EXIT WHEN simple_start = 0; -- Exit if no simple marker is found.
+//     
+//     IF _offset != 0 THEN
+//       simple_start := _offset + simple_start - 1;
+//     END IF;
+// 
+//     -- Locate the end of the simple key marker.
+//     simple_end := strpos(result, '}}', simple_start);
+//     IF simple_end = 0 THEN
+//       RAISE EXCEPTION 'Malformed template: missing closing braces for loop start';
+//     END IF;
+// 
+//     simple_key := substring(result from simple_start + start_pattern_length for simple_end - simple_start - start_pattern_length);
+// 
+// 
+//     replacement := eval_value(context, simple_key);
+//     RAISE LOG '% := eval_value(%, %)', replacement, context, simple_key;
+//     IF replacement IS NULL THEN
+//       _offset := simple_start + start_pattern_length;
+//       RAISE LOG '% := % + %', _offset, simple_start, start_pattern_length;
+//       IF _offset = 0 THEN
+//         RAISE EXCEPTION 'Malformed template: offcet cannot be 0';
+//       END IF;
+//       CONTINUE;
+//     END IF;
+//     result := replace(
+// 	result,
+// 	substring(result from simple_start for simple_end - simple_start + 2),
+// 	replacement);
+//   END LOOP;
+// 
+//   RETURN result;
+// END $$;
+
+void render_template_placeholders(char *text, char *context, char prefix[1]) {
+  // start
+  char start_pattern[4];
+  sprintf(&start_pattern[0], "{{%s", prefix);
+
+  int start_pattern_length = strlen(start_pattern);
+  int offset = 0;
+
+  while (1) {
+    // find tag start
+    char *placeholder_start = strstr(text + offset, start_pattern);
+    if (!placeholder_start) {
+      break;
+    }
+  };
+}
+
+void render_template(char *text, char *context) {
+  render_template_placeholders(text, context, "");
+}
+
+int main(void) {
+  render_template(text, context);
+
+  return 0;
+}

package/c/hmpl/libhmpl.c

@@ -0,0 +1,8 @@
+#include <stdio.h>
+#include "libhectic.h"
+
+int main(void) {
+  raise_info("hello world");
+
+  return 0;
+}

package/c/hmpl/libhmpl.h

@@ -0,0 +1,8 @@
+#include <stdio.h>
+#include "libhectic.h"
+
+int main(void) {
+  raise_info("hello world");
+
+  return 0;
+}