mighty

commit 3b604da71a926ac862fb9cdc28e4755d162ef61e
parent 5ad660308555fa5341d9a7a64a75b74638010b65
Author: citbl <citbl@citbl.org>
Date:   Sun, 24 May 2026 21:18:44 +1000

basic string literal

Diffstat:
M
mtcl/lexer.lua
 | 
24
++++++++++++++++++++++++

1 file changed, 24 insertions(+), 0 deletions(-)
diff --git a/mtcl/lexer.lua b/mtcl/lexer.lua
@@ -66,6 +66,24 @@ function read_number(start, src)
 	return num, i, is_float
 end
 
+function read_string_literal(start, src)
+	start = start + 1 -- consume leading dbl_quote
+	local str = ""
+	local i = start
+	local c = 0
+	while i <= #src do
+		c = src:sub(i, i)
+		if c == '"' then
+			i = i - 1
+			break
+		end
+		i = i + 1
+	end
+	word = src:sub(start, i)
+	i = i + 1 -- consume trailing dbl_quote
+	return word, i
+end
+
 TK = {
 	IDK = "UNKNOWN",
 	COLON = "colon",
@@ -83,6 +101,7 @@ TK = {
 	SGL_QUOTE = "sgl quo",
 	LIT_FLOAT = "a float",
 	LIT_INT = "a int",
+	LIT_STRING = "a string",
 	COMMA = "comma",
 }
 
@@ -182,6 +201,11 @@ function lexer:lex(file, src)
 			end
 			self.col = self.col + #number
 			i = i + 1
+		elseif c == '"' then
+			str, i = read_string_literal(i, src)
+			self:add(TK.LIT_STRING, str)
+			self.col = self.col + #str + 2
+			i = i + 1
 		elseif c == ":" then
 			if next() == ":" then
 				self:add(TK.COLONCOLON, "::")