X-Git-Url: https://git.distorted.org.uk/~mdw/runlisp/blobdiff_plain/10427eb21d77a0edeb2f17e434515b91b420cdfb..6c39ec6d05467457c590ec93ad98c179be6618af:/lib.h

diff --git a/lib.h b/lib.h
index e7db07c..9bf07d9 100644
--- a/lib.h
+++ b/lib.h
@@ -108,6 +108,7 @@
 #define CTYPE_HACK(func, ch) (func((unsigned char)(ch)))
 #define ISSPACE(ch) CTYPE_HACK(isspace, ch)
 #define ISALNUM(ch) CTYPE_HACK(isalnum, ch)
+#define ISXDIGIT(ch) CTYPE_HACK(isxdigit, ch)
 #define TOLOWER(ch) CTYPE_HACK(tolower, ch)
 #define TOUPPER(ch) CTYPE_HACK(toupper, ch)
 
@@ -621,23 +622,28 @@ extern struct config_var *config_find_var_n(struct config */*conf*/,
 	 * the NAME rather than null-termination.
 	 */
 
-extern void config_set_var(struct config */*conf*/,
-			   struct config_section */*sect*/, unsigned /*f*/,
-			   const char */*name*/, const char */*value*/);
+extern struct config_var *config_set_var(struct config */*conf*/,
+					 struct config_section */*sect*/,
+					 unsigned /*f*/,
+					 const char */*name*/,
+					 const char */*value*/);
 	/* Set variable NAME to VALUE in SECT, with associated flags F.
 	 *
 	 * The names are null-terminated.  The flags are variable flags: see
-	 * `struct config_var' for details.
+	 * `struct config_var' for details.  Returns the variable.
 	 *
 	 * If the variable is already set and has the `CF_OVERRIDE' flag,
 	 * then this function does nothing unless `CF_OVERRIDE' is /also/ set
 	 * in F.
 	 */
 
-extern void config_set_var_n(struct config */*conf*/,
-			     struct config_section */*sect*/, unsigned /*f*/,
-			     const char */*name*/, size_t /*namelen*/,
-			     const char */*value*/, size_t /*valuelen*/);
+extern struct config_var *config_set_var_n(struct config */*conf*/,
+					   struct config_section */*sect*/,
+					   unsigned /*f*/,
+					   const char */*name*/,
+					   size_t /*namelen*/,
+					   const char */*value*/,
+					   size_t /*valuelen*/);
 	/* As `config_set_var', except that the variable NAME and VALUE have
 	 * explicit lengths (NAMELEN and VALUELEN, respectively) rather than
 	 * being null- terminated.