1 files changed, 56 insertions, 0 deletions
diff --git a/format.h b/format.h
new file mode 100644
index 0000000..2f9c1b4
--- /dev/null
+++ b/format.h
@@ -0,0 +1,56 @@
+/* format.h
+ * ----------------------------------------------------------------------------
+ * 'THE BEER-WARE LICENSE' (Revision 42):
+ * <benjamin@chausse.xyz> wrote this file. As long as you retain this notice
+ * you can do whatever you want with this stuff. If we meet some day, and you
+ * think this stuff is worth it, you can buy me a beer in return.
+ * Benjamin Chausse
+ * ----------------------------------------------------------------------------
+ */
+
+#define TRUE 1
+#define FALSE 0
+#define COUNT_OF( arr) (sizeof(arr)/sizeof(0[arr]))
+
+// Conversion table between uppercase and lowercase
+const char caps[2][26] = {
+  {'A','B','C','D','E','F','G','H','I','J','K','L','M',
+    'N','O','P','Q','R','S','T','U','V','W','X','Y','Z'},
+  {'a','b','c','d','e','f','g','h','i','j','k','l','m',
+    'n','o','p','q','r','s','t','u','v','w','x','y','z'}
+};
+
+// Convert every character to lowercase
+char * lower(char *str){
+  int len = COUNT_OF(str);
+  for (int i=0; i<len; i++){
+    // Change all letters to lowercase
+    for (int j=0;j<26;j++){
+      if (str[i] == caps[0][j]) {
+        str[i] = caps[1][j];
+      }
+    }
+  }
+  return str;
+}
+
+char * trim(char *str){
+  // Count the total number of spaces to define the new str size
+  int spc =0;
+  for (int i=0; i<COUNT_OF(str); i++){
+    if (str[i] == ' '){
+      spc++;
+    }
+  }
+  // Actually format the new string
+  char nstr[COUNT_OF(str)-spc+1];
+  int j = 0; // index inside the new str (nstr)
+  for (int i=0; i<COUNT_OF(str); i++){
+    if (str[i] != ' '){
+      nstr[j] = str[i];
+      j++;
+    }
+  }
+  nstr[COUNT_OF(nstr)-1] = '\0';
+  return nstr;
+}