feat(ltm): start library

ltm/include/ltm/common.h

@@ -0,0 +1,8 @@
+#ifndef LTM_COMMON
+#define LTM_COMMON
+
+typedef enum ltm_err {
+  ltm_err_ok = 0,
+} ltm_err;
+
+#endif

ltm/include/ltm/template.h

@@ -0,0 +1,30 @@
+#ifndef LTM_TEMPLATE
+#define LTM_TEMPLATE
+
+#include <stdlib.h>
+
+#include "ltm/common.h"
+
+/**
+ * Represents a compiled template
+ */
+typedef struct lnm_template lnm_template;
+
+/**
+ * Compile the given template.
+ *
+ * @param out where to store pointer to newly allocated `lnm_template`
+ * @param template nul-terminated string containing the template
+ */
+ltm_err lnm_template_compile(lnm_template **out, const char *template);
+
+/**
+ * Compile the given template with a given length.
+ *
+ * @param out where to store pointer to newly allocated `lnm_template`
+ * @param template char buffer containing the template
+ * @param len length of the char buffer
+ */
+ltm_err lnm_template_compile_n(lnm_template **out, const char *template, size_t len);
+
+#endif