From: Lukáš Jiřiště <redacted>
Date: Fri, 18 Sep 2026 13:13:07 +0000 (+0200)
Subject: Create initial symbols for parsing
X-Git-Url: https://git.ljiriste.work/?a=commitdiff_plain;h=refs%2Fheads%2Ftrunk;p=SetSCAD.git

Create initial symbols for parsing
---

diff --git a/inc/grammar.h b/inc/grammar.h
new file mode 100644
index 0000000..8c4bbc5
--- /dev/null
+++ b/inc/grammar.h
@@ -0,0 +1,69 @@
+#ifndef GRAMMAR_H
+# define GRAMMAR_H
+
+# include "libft.h"
+
+// These strings should be regarded as constant
+// They are generated by xxd hence this type is forced
+
+extern unsigned char	grammar[];
+extern unsigned int		grammar_len;
+
+extern unsigned char	parsing_table[];
+extern unsigned int		parsing_table_len;
+
+typedef enum e_single_char_terminal
+{
+	RIGHT_SQUARE
+	LEFT_SQUARE
+	RIGHT_BRACKET
+	LEFT_BRACKET
+	RIGHT_CURLY
+	LEFT_CURLY
+	DIVIDE
+	TIMES
+	MINUS
+	PLUS
+	GREATER_THEN
+	LESS_THEN
+	OR
+	AND
+	Z
+	Y
+	X
+	N
+	U
+	BACKSLASH
+	EQUAL
+	COMMA
+	VERTICAL_BAR
+	SEMICOLON
+	DOT
+
+	single_char_terminal_count
+}	t_single_char_terminal;
+
+typedef enum e_keyword
+{
+	EXP = single_char_terminal_count,
+	MIRROR
+	TRANSLATE
+	ROTATE
+	FROM
+	LOAD
+	IN
+
+	keyword_count
+}	t_keyword;
+
+typedef enum e_other_terminals
+{
+	STRING = keyword_count,
+	INT,
+
+	terminal_count
+}	t_other_terminals;
+
+t_parse_tree_node	*parse(const char *file);
+
+#endif //GRAMMAR_H
diff --git a/src/parse_tree.c b/src/parse_tree.c
new file mode 100644
index 0000000..c51b753
--- /dev/null
+++ b/src/parse_tree.c
@@ -0,0 +1,40 @@
+#include "grammar.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+const char	*g_keyword_strings[keyword_count] = {
+	[MINUS] = "-",
+	[DOT] = ".",
+	[COMMA] = ",",
+	[TIMES] = "*",
+	[PLUS] = "+",
+	[RIGHT_PARA] = ")",
+	[LEFT_PARA] = "(",
+	[EXP] = "e",
+	[FROM] = "FROM",
+	[ATOM] = "ATOM",
+	[N_OUT_OF_K] = "NOOK",
+	[SYSTEM] = "SYSTEM",
+	[INSTANTIATE] = "INST",
+};
+
+const char	*g_token_strings[terminal_count] = {
+	[EXP] = "EXP",
+	[DOT] = "DOT",
+	[FROM] = "FROM",
+	[ATOM] = "ATOM",
+	[COMMA] = "COMMA",
+	[N_OUT_OF_K] = "N_OUT_OF_K",
+	[TIMES] = "TIMES",
+	[PLUS] = "PLUS",
+	[RIGHT_PARA] = "RIGHT_PARA",
+	[LEFT_PARA] = "LEFT_PARA",
+	[SYSTEM] = "SYSTEM",
+	[INSTANTIATE] = "INSTANTIATE",
+	[WORD] = "WORD",
+	[INT] = "INT",
+	[MINUS] = "MINUS",
+};
+
+static int	is_single_char_terminal(char c)