shithub: libmujs

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Issue 117: Skip first line if it starts with a shebang when loading files.

A file that starts with #! is going to be a syntax error anyway, so we
won't be changing the behavior of any other valid source files with this
fix.

--- a/jsstate.c

+++ b/jsstate.c

@@ -130,7 +130,7 @@

 void js_loadfile(js_State *J, const char *filename)

 {

 	FILE *f;

-	char *s;

+	char *s, *p;

 	int n, t;

 	f = fopen(filename, "rb");

@@ -176,7 +176,15 @@

 		js_throw(J);

 	}

-	js_loadstring(J, filename, s);

+	/* skip first line if it starts with "#!" */

+	p = s;

+	if (p[0] == '#' && p[1] == '!') {

+		p += 2;

+		while (*p && *p != '\n')

+			++p;

+	}

+

+	js_loadstring(J, filename, p);

 	js_free(J, s);

 	fclose(f);