3 files changed, 30 insertions, 10 deletions
diff --git a/analyzer/utils/memory.h b/analyzer/utils/memory.h
new file mode 100644
index 0000000..1de58b9
--- /dev/null
+++ b/analyzer/utils/memory.h
@@ -0,0 +1,4 @@
+// utils/memory.h
+// helper functions for dealing with memory management
+
+#define ARR_LEN(arr) (sizeof(arr) / sizeof(arr[0]))
diff --git a/analyzer/utils/roman.c b/analyzer/utils/roman.c
index 9ea2bbb..4fbe5c0 100644
--- a/analyzer/utils/roman.c
+++ b/analyzer/utils/roman.c
@@ -1,16 +1,15 @@
 #include "utils/roman.h"
 
-#include <stddef.h>
 #include <string.h>
 
+#include "utils/memory.h"
+
 void to_roman(char *buffer, int number) {
     buffer[0] = '\0';
-    int nums[ROMAN_CHAR_COUNT] = ROMAN_NUMS;
-    char *chars[ROMAN_CHAR_COUNT] = ROMAN_CHARS;
-    for (size_t i = 0; i < ROMAN_CHAR_COUNT; i++) {
-        for (size_t j = 0; j < number / nums[i]; j++) {
-            strcat(buffer, chars[i]);
+    for (size_t i = 0; i < ARR_LEN(roman_symbols); i++) {
+        for (size_t j = 0; j < number / roman_symbols[i].num; j++) {
+            strcat(buffer, roman_symbols[i].symbol);
         }
-        number %= nums[i];
+        number %= roman_symbols[i].num;
     }
 }
diff --git a/analyzer/utils/roman.h b/analyzer/utils/roman.h
index b4f5d3f..cebd16e 100644
--- a/analyzer/utils/roman.h
+++ b/analyzer/utils/roman.h
@@ -1,9 +1,26 @@
 // utils/roman.h
 // functions for roman numbers
 
-#define ROMAN_CHAR_COUNT 13
-#define ROMAN_NUMS {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1}
-#define ROMAN_CHARS {"M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"}
+typedef struct {
+    int num;
+    char *symbol;
+} RomanSymbol;
+
+static const RomanSymbol roman_symbols[] = {
+    {1000, "M"},
+    {900, "CM"},
+    {500, "D"},
+    {400, "CD"},
+    {100, "C"},
+    {90, "XC"},
+    {50, "L"},
+    {40, "XL"},
+    {10, "X"},
+    {9, "IX"},
+    {5, "V"},
+    {4, "IV"},
+    {1, "I"},
+};
 
 // convert a arabic number to roman number
 // params: