fix: bootstrap parser newline skipping + nexus compile errors

- Add tkNewLine skipping in bootstrap parser parsePrimary, parseUnary, parsePostfix
- Fix nexus: req.String_Len(path) -> String_Len(req.path)
- Fix nexus: bux_sb_append_char with char literal -> bux_sb_append with string

apps/nexus/src/Main.bux

@@ -198,7 +198,7 @@ func Http_ParseRequest(raw: String) -> HttpRequest {
     if bux_strlen(requestLine) > 0 {
         req.method = Http_ParseMethod(bux_str_split_part(requestLine, " ", 0));
         req.path = bux_str_split_part(requestLine, " ", 1);
-        if String_Eq(req.path, "") || req.String_Len(path) == 0 {
+        if String_Eq(req.path, "") || String_Len(req.path) == 0 {
             req.path = "/";
         }
     }
@@ -257,7 +257,7 @@ func Http_BuildResponse(resp: HttpResponse) -> String {
     // Status line
     bux_sb_append(sb, "HTTP/1.1 ");
     bux_sb_append_int(sb, resp.statusCode as int64);
-    bux_sb_append_char(sb, ' ');
+    bux_sb_append(sb, " ");
     bux_sb_append(sb, resp.statusText);
     bux_sb_append(sb, "\r\n");
 

bootstrap/parser.nim

@@ -392,6 +392,8 @@ proc parseExpr(p: var Parser): Expr =
   p.parseAssign()
 
 proc parsePrimary(p: var Parser): Expr =
+  while p.check(tkNewLine):
+    discard p.advance()
   let loc = p.currentLoc
   case p.peek()
   of tkIntLiteral, tkFloatLiteral, tkStringLiteral, tkCharLiteral, tkBoolLiteral:
@@ -509,6 +511,8 @@ proc parsePrimary(p: var Parser): Expr =
 proc parsePostfix(p: var Parser): Expr =
   var left = p.parsePrimary()
   while true:
+    while p.check(tkNewLine):
+      discard p.advance()
     let loc = p.currentLoc
     case p.peek()
     of tkLParen:
@@ -605,6 +609,8 @@ proc parsePostfix(p: var Parser): Expr =
   return left
 
 proc parseUnary(p: var Parser): Expr =
+  while p.check(tkNewLine):
+    discard p.advance()
   let loc = p.currentLoc
   case p.peek()
   of tkBorrow: