Added const qualifier to the w1~w4 arguments of npc_parse_function

Signed-off-by: Haru <haru@dotalux.com>

2 files changed, 27 insertions, 4 deletions

diff --git a/src/map/npc.c b/src/map/npc.c
index c74038272..8bc874615 100644
--- a/src/map/npc.c
+++ b/src/map/npc.c
@@ -3562,9 +3562,32 @@ int npc_do_atcmd_event(struct map_session_data* sd, const char* command, const c
 	return 0;
 }
 
-/// Parses a function.
-/// function%TAB%script%TAB%<function name>%TAB%{<code>}
-const char* npc_parse_function(char* w1, char* w2, char* w3, char* w4, const char* start, const char* buffer, const char* filepath, int *retval) {
+/**
+ * Parses a function.
+ *
+ * Example:
+ * @code
+ * function<TAB>script<TAB><function name><TAB>{
+ *   <code>
+ * }
+ * @endcode
+ *
+ * @param[in]  w1       First tab-delimited part of the string to parse.
+ * @param[in]  w2       Second tab-delimited part of the string to parse.
+ * @param[in]  w3       Third tab-delimited part of the string to parse.
+ * @param[in]  w4       Fourth tab-delimited part of the string to parse.
+ * @param[in]  start    Pointer to the beginning of the string inside buffer.
+ *                      This must point to the same buffer as `buffer`.
+ * @param[in]  buffer   Pointer to the buffer containing the script. For
+ *                      single-line mapflags not inside a script, this may be
+ *                      an empty (but initialized) single-character buffer.
+ * @param[in]  filepath Source file path.
+ * @param[out] retval   Pointer to return the success (EXIT_SUCCESS) or failure
+ *                      (EXIT_FAILURE) status. May be NULL.
+ * @return A pointer to the advanced buffer position.
+ */
+const char *npc_parse_function(const char *w1, const char *w2, const char *w3, const char *w4, const char *start, const char *buffer, const char *filepath, int *retval)
+{
 	DBMap* func_db;
 	DBData old_data;
 	struct script_code *scriptroot;
diff --git a/src/map/npc.h b/src/map/npc.h
index 00b9c4d3c..969f77f3d 100644
--- a/src/map/npc.h
+++ b/src/map/npc.h
@@ -254,7 +254,7 @@ struct npc_interface {
 	void (*setdisplayname) (struct npc_data *nd, const char *newname);
 	void (*setclass) (struct npc_data *nd, short class_);
 	int (*do_atcmd_event) (struct map_session_data *sd, const char *command, const char *message, const char *eventname);
-	const char* (*parse_function) (char *w1, char *w2, char *w3, char *w4, const char *start, const char *buffer, const char *filepath, int *retval);
+	const char *(*parse_function) (const char *w1, const char *w2, const char *w3, const char *w4, const char *start, const char *buffer, const char *filepath, int *retval);
 	void (*parse_mob2) (struct spawn_data *mobspawn);
 	const char* (*parse_mob) (char *w1, char *w2, char *w3, char *w4, const char *start, const char *buffer, const char *filepath, int *retval);
 	const char *(*parse_mapflag) (const char *w1, const char *w2, const char *w3, const char *w4, const char *start, const char *buffer, const char *filepath, int *retval);