Split code in multiple files

Rework parser
Add command to step in

1 files changed, 93 insertions, 0 deletions

diff --git a/src/utils.c b/src/utils.c
new file mode 100644
index 0000000..71377bc
--- /dev/null
+++ b/src/utils.c
@@ -0,0 +1,93 @@
+#include <strsafe.h>
+#include <Windows.h>
+
+#include "types.h"
+
+void u64toa(u64 number, char* str, u32 base) {
+    static char codes[16U] = {
+        '0',
+        '1',
+        '2',
+        '3',
+        '4',
+        '5',
+        '6',
+        '7',
+        '8',
+        '9',
+        'A',
+        'B',
+        'C',
+        'D',
+        'E',
+        'F',
+    };
+    u32 remainder = 0U;
+    u32 size = 0U;
+
+    if (number == 0) {
+        str[0U] = codes[0U];
+        return;
+    }
+
+    for(; number != 0U; size++) {
+        remainder = number % base;
+        number /= base;
+        str[size] = codes[remainder];
+    }
+
+    for(u32 i = 0; i < size / 2U; i++) {
+        char c = str[i];
+        str[i] = str[size - i - 1];
+        str[size - i - 1] = c;
+    }
+}
+
+void print(const char* format, ...) {
+    va_list args;
+    va_start(args, format);
+    char formatted_str[4096U] = {};
+    STRSAFE_LPSTR cur_char = formatted_str;
+
+    const char* cur_fmt = format;
+    while(*cur_fmt != '\0') {
+        if(*cur_fmt == '%') {
+            cur_fmt++;
+            if (*cur_fmt == 's') {
+                const char* str = va_arg(args, const char*);
+                if(str != NULL) {
+                    size_t length = 0U;
+                    StringCchLengthA(str, sizeof(formatted_str), &length);
+                    StringCchCatA(cur_char, length + 1U, str);
+                    cur_char += length;
+                }
+            } else if(*cur_fmt == 'c') {
+                char c = va_arg(args, char);
+                StringCchCatA(cur_char, 1U, &c);
+                cur_char += 1U;
+            } else if(*cur_fmt == 'u') {
+                u64 number = va_arg(args, u64);
+                u64toa(number, cur_char, 10);
+                size_t length = 0U;
+                StringCchLengthA(formatted_str, sizeof(formatted_str), &length);
+                cur_char = formatted_str + length;
+            } else if(*cur_fmt == 'x') {
+                u64 number = va_arg(args, u64);
+                u64toa(number, cur_char, 16);
+                size_t length = 0U;
+                StringCchLengthA(formatted_str, sizeof(formatted_str), &length);
+                cur_char = formatted_str + length;
+            }
+        } else {
+            *cur_char = *cur_fmt;
+            cur_char++;
+        }
+        cur_fmt++;
+    }
+    va_end(args);
+
+    HANDLE standard_err = GetStdHandle(STD_ERROR_HANDLE);
+    size_t length = 0U;
+    StringCchLengthA(formatted_str, sizeof(formatted_str), &length);
+    SUCCEEDED(WriteFile(standard_err, formatted_str, (DWORD)length, NULL, NULL));
+}