From: Lukas Krickl <lukas@krickl.dev>
Date: Fri, 13 Mar 2026 12:34:37 +0000 (+0100)
Subject: scripting: wip number lexing
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=70c75919016fe1960de60eec3bf1d09f0af7707a;p=lrts%2F.git

scripting: wip number lexing
---

diff --git a/README.md b/README.md
index 937c5fb..fbd80b7 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # lrts
 
-lukas' real time strategy.
+lukas' real time simulation.
 
 ## Table of content
 
diff --git a/src/l_lsl.c b/src/l_lsl.c
index 2ae4030..e4c0c31 100644
--- a/src/l_lsl.c
+++ b/src/l_lsl.c
@@ -27,6 +27,28 @@ lrts_bool l_lsl_isnum(char c) {
 	return c >= '0' && c <= '9';
 }
 
+lrts_bool l_lsl_ishexnum(char c) {
+	return (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')
+		|| l_lsl_isnum(c);
+}
+
+lrts_bool l_lsl_isbin(char c) {
+	return c == '1' || c == '0';
+}
+
+/* peeks current token */
+#define l_lsl_lex_peek(v, code) \
+	(code)[v->lex_pos]
+
+/* peeks current token and then advances cursor */
+#define l_lsl_lex_consume(v, code)\
+	(code)[v->lex_pos++]
+
+/* advances cursor and then peeks current token */
+#define l_lsl_lex_advance(v, code) \
+	(code)[++v->lex_pos]
+
+
 char tokbuf[L_LSL_TOK_MAX];
 const char* l_lsl_next_token(struct l_lsl_vm *v, const char *code,
 		u32 *token_len) {
@@ -34,15 +56,31 @@ const char* l_lsl_next_token(struct l_lsl_vm *v, const char *code,
 
 	*token_len = 0;
 	
-	c = code[v->lex_pos];
+	c = l_lsl_lex_peek(v, code);
 
 	if (l_lsl_isnum(c)) {
 		/* decimal number */
 		while (l_lsl_isnum(c)) {
 			tokbuf[*token_len] = c;
 			*token_len += 1;
-			c = code[++v->lex_pos];
+			c = l_lsl_lex_advance(v, code);
+		}
+	} else if (c == '0') {
+		/* specific base number */
+		c = l_lsl_lex_advance(v, code);
+
+		if (l_lsl_isnum(c)) {
+			/* octal */
+		} else if (c == 'x') {
+			/* hex */
+		} else if (c == 'b') {
+			/* bin */
+		} else {
+			u_log(U_LOG_CRIT, "unknown number base: 0%c\n", c);
+			return LRTS_NULL;
 		}
+
+
 	} else {
 			u_log(U_LOG_CRIT, "unknown char: %c\n", c);
 			return LRTS_NULL;