1 files changed, 0 insertions, 152 deletions
diff --git a/03-refactor/src/printf.c b/03-refactor/src/printf.c
deleted file mode 100644
index fa7f519..0000000
--- a/03-refactor/src/printf.c
+++ /dev/null
@@ -1,152 +0,0 @@
-#include "printf.h"
-
-enum PRINTF_TYPE {
-  PRINTF_TYPE_STRING = 0,
-  PRINTF_TYPE_INT = 1,
-  PRINTF_TYPE_PERCENT = 2,
-  PRINTF_TYPE_UNKNOWN = 999
-};
-
-static enum PRINTF_TYPE get_printf_type(const char* cur)
-{
-  while (*cur >= 0x30 && *cur < 0x3a) ++ cur;
-
-  if (*cur == 's') {
-    return PRINTF_TYPE_STRING;
-  } else if (*cur == 'd' || *cur == 'x' || *cur == 'X' || *cur == 'u') {
-    return PRINTF_TYPE_INT;
-  }
-
-  return PRINTF_TYPE_UNKNOWN;
-}
-
-static const char* printf_handle_string(
-  const char* fmt,
-  const char* next,
-  printf_callback_t callback,
-  volatile void* closure)
-{
-  const char* cur = next;
-  for (; *cur != 0; ++ cur) {
-    callback(closure, *cur);
-  }
-
-  return fmt;
-}
-
-static char printf_toupper(char ch)
-{
-  if (ch <= 0x7a && ch > 0x60) {
-    return ch - 0x20;
-  }
-  return ch;
-}
-
-static const char* parse_fmt(
-    const char* fmt,
-    int* out_padding,
-    char* out_pad_char)
-{
-  if (*fmt == '0') {
-    *out_pad_char = '0';
-    ++ fmt;
-  } else {
-    *out_pad_char = ' ';
-  }
-  int padding = 0;
-  while (*fmt < 0x3a && *fmt >= 0x30) {
-    padding *= 10;
-    padding += (*fmt ++) - 0x30;
-  }
-
-  *out_padding = padding;
-  return fmt;
-}
-
-static const char* mapping = "0123456789abcdef";
-static const char* printf_handle_int(
-  const char* fmt, unsigned int next, printf_callback_t callback, volatile void* closure)
-{
-  int base = 10;
-  char chars[32];
-  int pos = 31;
-  int upper = 0;
-  char pad_char;
-  int padding;
-  int is_unsigned = 0;
-
-  fmt = parse_fmt(fmt, &padding, &pad_char);
-
-  if (*fmt == 'x' || *fmt == 'X') {
-    base = 16;
-    is_unsigned = 1;
-  } else if (*fmt == 'u') {
-    is_unsigned = 1;
-  }
-
-  upper = *fmt == 'X';
-
-  int next_i = (int) next;
-  if (next_i < 0 && !is_unsigned) {
-    callback(closure, '-');
-    next_i *= -1;
-    next = (unsigned) next_i;
-  }
-
-  if (next == 0) {
-    callback(closure, '0');
-  } else {
-    while (next > 0) {
-      char next_ch = mapping[next % base];
-      if (upper) next_ch = printf_toupper(next_ch);
-      chars[pos --] = next_ch;
-      padding --;
-      next /= base;
-    }
-
-    while ((padding--) > 0) {
-      chars[pos --] = pad_char;
-    }
-
-    for (++ pos; pos < 32; ++ pos) {
-      callback(closure, chars[pos]);
-    }
-  }
-
-  return fmt;
-}
-
-void printf_format(
-    const char* fmt,
-    printf_callback_t callback,
-    volatile void* closure,
-    va_list ap) 
-{
-  const char* cur = fmt;
-
-  const char* next_string;
-  int next_int;
-
-  for (; *cur != 0; ++ cur) {
-    if (*cur == '%') {
-      // Handle the formatting here.
-      ++ cur;
-      enum PRINTF_TYPE printf_type = get_printf_type(cur);
-
-      switch (printf_type) {
-      case PRINTF_TYPE_PERCENT:
-        callback(closure, '%');
-        break;
-      case PRINTF_TYPE_STRING:
-        next_string = va_arg(ap, const char*);
-        cur = printf_handle_string(cur, next_string, callback, closure);
-        break;
-      case PRINTF_TYPE_INT:
-        next_int = va_arg(ap, int);
-        cur = printf_handle_int(cur, next_int, callback, closure);
-      }
-    } else {
-      callback(closure, *cur);
-    }
-  }
-}