more config

1 files changed, 49 insertions, 0 deletions

diff --git a/ted-base.c b/ted-base.c
new file mode 100644
index 0000000..5ed6469
--- /dev/null
+++ b/ted-base.c
@@ -0,0 +1,49 @@
+typedef struct {
+	Command cmd;
+	i64 argument;
+} KeyAction;
+
+#define SCANCODE_COUNT 0x120 // SDL scancodes should be less than this value.
+// a "key combo" is some subset of {control, shift, alt} + some key.
+#define KEY_COMBO_COUNT (SCANCODE_COUNT << 3)
+
+typedef struct {
+	TextBuffer *active_buffer;
+	KeyAction key_actions[KEY_COMBO_COUNT];
+	char error[256];
+} Ted;
+
+// this is a macro so we get -Wformat warnings
+#define ted_seterr(buffer, ...) \
+	snprintf(ted->error, sizeof ted->error - 1, __VA_ARGS__)
+
+bool ted_haserr(Ted *ted) {
+	return ted->error[0] != '\0';
+}
+
+char const *ted_geterr(Ted *ted) {
+	return ted->error;
+}
+
+static void ted_out_of_mem(Ted *ted) {
+	ted_seterr(ted, "Out of memory.");
+}
+
+static void *ted_malloc(Ted *ted, size_t size) {
+	void *ret = malloc(size);
+	if (!ret) ted_out_of_mem(ted);
+	return ret;
+}
+
+static void *ted_calloc(Ted *ted, size_t n, size_t size) {
+	void *ret = calloc(n, size);
+	if (!ret) ted_out_of_mem(ted);
+	return ret;
+}
+
+static void *ted_realloc(Ted *ted, void *p, size_t new_size) {
+	void *ret = realloc(p, new_size);
+	if (!ret) ted_out_of_mem(ted);
+	return ret;
+}
+