TOML settings parsing

Currently a very simplistic parser that do not support all TOML
datatypes. Supported are:

- Tables
- Strings (incl multiline)
- Integers
- Inline Tables
- Booleans
- Comments

1 files changed, 44 insertions, 0 deletions

diff --git a/src/dged/settings-parse.h b/src/dged/settings-parse.h
new file mode 100644
index 0000000..63a0f1e
--- /dev/null
+++ b/src/dged/settings-parse.h
@@ -0,0 +1,44 @@
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#include "vec.h"
+
+enum token_type {
+  Token_Comment,
+  Token_Key,
+  Token_StringValue,
+  Token_BoolValue,
+  Token_IntValue,
+  Token_Table,
+  Token_InlineTable,
+
+  Token_Error,
+};
+
+struct token {
+  enum token_type type;
+  void *data;
+  uint32_t len;
+  uint32_t row;
+  uint32_t col;
+};
+
+typedef size_t (*getbytes)(size_t nbytes, uint8_t *buf, void *userdata);
+struct reader {
+  getbytes getbytes;
+  void *userdata;
+};
+
+struct parser {
+  uint32_t row;
+  uint32_t col;
+
+  struct reader reader;
+  VEC(uint8_t) buffer;
+};
+
+struct parser parser_create(struct reader reader);
+void parser_destroy(struct parser *parser);
+
+bool parser_next_token(struct parser *state, struct token *token_out);