1 files changed, 28 insertions, 0 deletions
diff --git a/masm/gen/log.c b/masm/gen/log.c
new file mode 100644
index 0000000..2df455b
--- /dev/null
+++ b/masm/gen/log.c
@@ -0,0 +1,28 @@
+#include "../gen.h"
+
+void gen_output_expr(struct generator *gen, struct expr *expr)
+{
+	int line = expr->line_no,
+	    len = expr->byte_end - expr->byte_start,
+	    nl = true,
+	    c = EOF;
+	FILE *file = gen->parser.lexer.file;
+
+	fseek(file, expr->byte_start, SEEK_SET);
+
+	while (len--) {
+		c = getc(file);
+		if (c == EOF || c == '\0')
+			break;
+		if (nl) {
+			fprintf(stderr, "\t%d | ", line);
+			line++;
+			nl = false;
+		}
+		if (c == '\n')
+			nl = true;
+		putc(c, stderr);
+	}
+
+}
+