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-rw-r--r--support/texlab/crates/bibutils_sys/src/unicode.h22
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diff --git a/support/texlab/crates/bibutils_sys/src/unicode.h b/support/texlab/crates/bibutils_sys/src/unicode.h
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+++ b/support/texlab/crates/bibutils_sys/src/unicode.h
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+/*
+ * unicode.h
+ *
+ * Copyright (c) Chris Putnam 2004-2019
+ *
+ * Program and source code released under the GPL version 2
+ */
+#ifndef UNICODE_H
+#define UNICODE_H
+
+#include "str.h"
+
+#define UNICODE_SYMBOL (1)
+#define UNICODE_UPPER (2) /* Uppercase letter */
+#define UNICODE_LOWER (4) /* Lowercase letter */
+#define UNICODE_NUMBER (8) /* Numeric character */
+#define UNICODE_MIXEDCASE ( UNICODE_UPPER | UNICODE_LOWER )
+
+extern unsigned short unicode_utf8_classify( char *p );
+extern unsigned short unicode_utf8_classify_str( str *s );
+
+#endif