add basic float_array parsing

1 files changed, 71 insertions, 0 deletions

diff --git a/src/geometry/geometry.c b/src/geometry/geometry.c
new file mode 100644
index 0000000..be9ce25
--- /dev/null
+++ b/src/geometry/geometry.c
@@ -0,0 +1,71 @@
+#include <string.h>
+#include <stdlib.h>
+
+#include <kalmia.h>
+#include <ezxml.h>
+#include "geometry.h"
+
+
+static int copy_str(char **dest, const char *src)
+{
+	if (src == NULL) {
+		*dest = NULL;
+		return 0;
+	}
+
+	size_t len = strlen(src)+1;
+	*dest = malloc(len * sizeof(char));
+	if (*dest == NULL)
+		return -1;
+	strncpy(*dest, src, len);
+	return 0;
+}
+
+
+ka_float_array_t * kai_parse_float_array(ezxml_t tag)
+{
+	if (strcmp(ezxml_name(tag), "float_array") != 0) {
+		/* wrong tag type */
+		return NULL;
+	}
+
+	/* allocate struct */
+	ka_float_array_t *a = malloc(sizeof(ka_float_array_t));
+	if (a == NULL) return NULL;
+
+	/* inspect attributes */
+	const char *count_str = ezxml_attr(tag, "count");
+	a->count = strtol(count_str, NULL, 10);
+
+	const char *id_str = ezxml_attr(tag, "id");
+	if (copy_str(&(a->id), id_str) < 0) {
+		free(a);
+		return NULL;
+	}
+
+	/* parse data */
+	a->array = malloc(a->count * sizeof(ka_real_t));
+	if (a->array == NULL) {
+		free(a->id);
+		free(a);
+		return NULL;
+	}
+
+	char *data = ezxml_txt(tag);
+	char *end;
+	int i;
+	for (i=0; i<a->count; i++) {
+		a->array[i] = KA_STR_TO_REAL(data, &end);
+		data = end;
+	}
+
+	return a;
+}
+
+
+void kai_free_float_array(ka_float_array_t *a)
+{
+	free(a->array);
+	free(a->id);
+	free(a);
+}