feat(01): Solved part 2

01/src/main.c

@@ -6,35 +6,74 @@
  * @author jiriks74
  */
 #define _GNU_SOURCE
-// #define _LINE_LEN (size_t *)100
-#define _LINE_LEN 100
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+/**
+ * @brief
+ * param
+ * return
+ */
+int getNum(const char *line) {
+  char *str = (char *)line;
+  // Mapping of words to numeric representations
+  const char *numbers[] = {"zero", "one", "two",   "three", "four",
+                           "five", "six", "seven", "eight", "nine"};
+  const char *digits[] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"};
+
+  // Find first written number
+  char *smallestPos = strchr(str, *"\0");
+  int numAtSmallPos = -1;
+  for (int i = 0; i < sizeof(numbers) / sizeof(numbers[0]); i++) {
+    char *pos = NULL;
+
+    char *written = strstr(str, numbers[i]);
+    char *digit = strstr(str, digits[i]);
+
+    if (written == NULL && digit == NULL)
+      continue;
+    if (written == NULL)
+      pos = digit;
+    else if (digit == NULL)
+      pos = written;
+    else
+      pos = digit < written ? digit : written;
+
+    if (pos < smallestPos) {
+      numAtSmallPos = i;
+      smallestPos = pos;
+    }
+  }
+
+  // Chen which was first and return it
+  return numAtSmallPos;
+}
+
 /**
  * @brief Gets a calibration value from a line
  * @param char* line containing the calibration value
  * @return int the calibration value
  */
-int getVal(char *str) {
-  int num = 0;
-  int lastNum = -1;
+int getVal(const char *str) {
+  int result = 0;
+  int result2 = -1;
   for (int i = 0; i < strlen(str); i++) {
-    if (str[i] >= *"0" && str[i] <= *"9") {
-      if (num == 0) {
-        num = (str[i] - 48) * 10;
+    int num = getNum(&str[i]);
+    if (num >= 0) {
+      if (result == 0) {
+        result = num * 10;
       } else {
-        lastNum = str[i] - 48;
+        result2 = num;
       }
     }
   }
-  if (lastNum == -1) {
-    num += num / 10;
+  if (result2 == -1) {
+    result += result / 10;
   } else {
-    num += lastNum;
+    result += result2;
   }
-  return num;
+  return result;
 }
 
 /**
@@ -52,9 +91,10 @@ int main(int argc, char *argv[])
   if (argc == 1) {
     file = stdin;
   } else {
-    file = fopen(argv[1], "r");
+    file = fopen(argv[1], "r"); // LCOV_EXCL_LINE
   }
 
+  // LCOV_EXCL_START
   if (file == NULL) {
     if (argc > 1)
       fprintf(stderr, "Could not open file '%s'\n", argv[1]);
@@ -62,6 +102,7 @@ int main(int argc, char *argv[])
       fprintf(stderr, "Couldn't open file\n");
     exit(EXIT_FAILURE);
   }
+  // LCOV_EXCL_STOP
 
   char *line;
   size_t len = 0;