C functions to detect IUPAC sequences

src/encode.h

@@ -78,6 +78,36 @@ enum
 bool only_ATGC(const char* seq);
 
 
+/**
+ * @brief Checks if there are only IUPAC DNA characters in a
+ *        character string.
+ *
+ * @param seq The sequence to check.
+ *
+ * @returns A boolean value indicating if there are only
+ *          IUPAC DNA characters in a character string.
+ *
+ * @since May 2017
+ * @author Celine Mercier (celine.mercier@metabarcoding.org)
+ */
+bool only_IUPAC_DNA(const char* seq);
+
+
+/**
+ * @brief Checks if a character string can be read as a DNA sequence encoded
+ *        with ACGT or IUPAC characters (in capital letters or not).
+ *
+ * @param seq The sequence to check.
+ *
+ * @returns A boolean value indicating if the character string
+ *          can be read as a DNA sequence.
+ *
+ * @since May 2017
+ * @author Celine Mercier (celine.mercier@metabarcoding.org)
+ */
+bool is_a_DNA_seq(const char* seq);
+
+
 /**
  * @brief Encodes a DNA sequence with each nucleotide coded on 2 bits.
  *