Ajout doc et nouvelle fonction pour check si ligne vide

lib/utils.c

@@ -1,8 +1,17 @@
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h> 
 
 #include "utils.h"
 
+/**
+ * sub_digit(): return the longest sub string with digit
+ * @str: a string with digit
+ *
+ * Extract the longest sub string with digit in a big string.
+ *
+ * Return: a int which is the digit
+ */
 int sub_digit(char *str)
 {
   int ret = 0;
@@ -17,6 +26,14 @@ int sub_digit(char *str)
   return ret;
 }
 
+/**
+ * check_ecl(): check only the ecl (jour4)
+ * @str: the string to test
+ *
+ * Just check if ecl is good
+ *
+ * Return: 0 if not good, 1 else
+ */
 int check_ecl(char *str)
 {
   str = str + 1;
@@ -28,3 +45,25 @@ int check_ecl(char *str)
 
   return 0;
 }
+
+/**
+ * check_void_line(): check if one line is blank
+ * @ptr: a pointer to the file
+ *
+ * Check if, in one file, we have an empty line between two line with text
+ *
+ * Return: 0 if the line isn’t empty, 1 else
+ */
+int check_void_line(FILE *ptr)
+{
+  int ret = 0;
+  char check_line[2];
+  check_line[0] = getc(ptr);
+  check_line[1] = getc(ptr);
+  if (check_line[0] == '\n' && (check_line[1] == '\n' || check_line[1] == EOF))
+    ret = 1;
+
+  fseek(ptr, -1, SEEK_CUR);
+
+  return ret;
+}

lib/utils.h

@@ -1,2 +1,3 @@
 int sub_digit(char *str);
 int check_ecl(char *str);
+int check_void_line(FILE *ptr);