1 files changed, 29 insertions, 0 deletions
diff --git a/samus/sa_misc.c b/samus/sa_misc.c
new file mode 100644
index 00000000..109e3693
--- /dev/null
+++ b/samus/sa_misc.c
@@ -0,0 +1,29 @@
+#include "fitz.h"
+#include "samus.h"
+
+/*
+ * Test part names for equivalence.
+ *
+ * What we *should* do here (according to the spec) is...
+ * - Convert part name to a Unicode string by un-escaping UTF-8 octets.
+ * - Convert this to upper case.
+ * - Normalize to NFC.
+ *
+ * But all we do is a case insensitive ASCII string comparison.
+ */
+
+static inline int toupper(int c)
+{
+	if (c >= 'a' && c <= 'z')
+		return c + 'A' - 'a';
+	return c;
+}
+
+int sa_strcmp(char *a, char *b)
+{
+	while (toupper(*a) == toupper(*b++))
+		if (*a++ == 0)
+			return 0;
+	return toupper(*a) - toupper(*(b-1));
+}
+