lang: lex: move structure definitions to a separate header

lang/lex.h

@@ -0,0 +1,55 @@
+#ifndef _LEX_H_
+#define _LEX_H_
+
+#include <blue/core/queue.h>
+#include <blue/object/string.h>
+#include <blue/object/dict.h>
+#include <stdint.h>
+
+struct ivy_lexer {
+	struct ivy_lexer_symbol_node *lex_sym_tree;
+	struct ivy_line_source *lex_source;
+	b_dict *lex_keywords;
+	enum ivy_status lex_status;
+
+	struct ivy_token *lex_queue;
+	enum ivy_token_type lex_prev_token;
+
+	b_string *lex_temp;
+	b_queue lex_state;
+	unsigned int lex_brace_depth;
+
+	char *lex_linebuf;
+	size_t lex_linebuf_len;
+	size_t lex_linebuf_cap;
+	size_t lex_linebuf_ptr;
+};
+
+enum lexer_state_type {
+	STATE_NORMAL,
+	STATE_STRING,
+	STATE_FSTRING,
+	STATE_INTERPOLATION,
+};
+
+struct lexer_state {
+	enum lexer_state_type s_type;
+	unsigned int s_brace_depth;
+	b_queue_entry s_entry;
+};
+
+struct ivy_lexer_symbol_node {
+	char s_char;
+	enum ivy_symbol s_id;
+
+	b_queue_entry s_entry;
+	b_queue s_children;
+};
+
+struct lex_token_def {
+	int id;
+	const char *name;
+	uint64_t name_hash;
+};
+
+#endif