util: Make string-util.h C++-compatible

[notmuch.git] / util / string-util.h

diff --git a/util/string-util.h b/util/string-util.h
index 0194607ee52877b9c1adcfc96933d84aab9658f1..ccad17f1ced4f5f2a639d7891681438aaea09b56 100644 (file)
--- a/util/string-util.h
+++ b/util/string-util.h
@@ -3,6 +3,10 @@
 
 #include <string.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* like strtok(3), but without state, and doesn't modify s.  Return
  * value is indicated by pointer and length, not null terminator.
  *
@@ -19,6 +23,13 @@
 
 char *strtok_len (char *s, const char *delim, size_t *len);
 
+/* Return a talloced string with str sanitized.
+ *
+ * Whitespace characters (tabs and newlines) are replaced with spaces,
+ * non-printable characters with question marks.
+ */
+char *sanitize_string (const void *ctx, const char *str);
+
 /* Construct a boolean term query with the specified prefix (e.g.,
  * "id") and search term, quoting term as necessary.  Specifically, if
  * term contains any non-printable ASCII characters, non-ASCII
@@ -50,4 +61,8 @@ int
 parse_boolean_term (void *ctx, const char *str,
                    char **prefix_out, char **term_out);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif