From f7e4d1b4d9da8c42f02f79c0328477dd787fecd2 Mon Sep 17 00:00:00 2001
From: Bardur Arantsson <bardur@scientician.net>
Date: Fri, 18 May 2012 15:07:28 +0200
Subject: Lua: Add string_list for dynamic string lists

---
 src/CMakeLists.txt |  2 +-
 src/string_list.c  | 40 ++++++++++++++++++++++++++++++++++++++++
 src/types.h        | 16 ++++++++++++++++
 3 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 src/string_list.c

(limited to 'src')

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3a640e74..f1af4895 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -11,7 +11,7 @@ SET(SRCS
   monster1.c monster2.c monster3.c
   xtra1.c xtra2.c skills.c powers.c gods.c
   spells1.c spells2.c spells3.c spells4.c corrupt.c mimic.c
-  status.c files.c notes.c loadsave.c
+  status.c files.c notes.c loadsave.c string_list.c
   cmd1.c cmd2.c cmd3.c cmd4.c cmd5.c cmd6.c cmd7.c
   help.c
   generate.c gen_maze.c gen_evol.c wild.c levels.c store.c bldg.c
diff --git a/src/string_list.c b/src/string_list.c
new file mode 100644
index 00000000..b39ecd6f
--- /dev/null
+++ b/src/string_list.c
@@ -0,0 +1,40 @@
+#include "angband.h"
+
+int compare_string_list(string_list *a, string_list *b)
+{
+	if (a == b)
+	{
+		return 0;
+	}
+
+	return strcmp(a->s, b->s);
+}
+
+SGLIB_DEFINE_LIST_FUNCTIONS(string_list, compare_string_list, next);
+
+/*
+ * Initialize a string_list value. Copies the input string.
+ */
+void string_list_init(string_list *sl, cptr s)
+{
+	assert(sl != NULL);
+
+	sl->s = string_make(s);
+	sl->next = NULL;
+}
+
+/*
+ * Destroy string_value.
+ */
+void string_list_destroy(string_list *sl)
+{
+	assert(sl != NULL);
+
+	if (sl->s) {
+		string_free(sl->s);
+		sl->s = NULL;
+	}
+
+	/* We do NOT free the rest of the list. */
+	sl->next = NULL;
+}
diff --git a/src/types.h b/src/types.h
index ea8ca019..3a408ed1 100644
--- a/src/types.h
+++ b/src/types.h
@@ -46,6 +46,22 @@
  */
 
 
+/*
+ * String list.
+ */
+typedef struct string_list string_list;
+struct string_list {
+	/* The string list owns the string */
+	cptr s;
+	/* Next */
+	string_list *next;
+};
+
+int compare_string_list(string_list *a, string_list *b);
+SGLIB_DEFINE_LIST_PROTOTYPES(string_list, compare_string, next);
+
+void string_list_init(string_list *sl, cptr s); /* Initialize element; copies string */
+void string_list_destroy(string_list *sl);      /* Destroy element */
 
 
 
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