From: Kevin Brown <kevin@kevin-brown.com>
Date: Sat, 16 May 2020 02:27:06 +0000 (-0400)
Subject: Do not require a newline before line statements
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f11698df16baf9d896fd15e698a7a1f9aa5a0384;p=thirdparty%2Fjinja.git

Do not require a newline before line statements

As we discovered in the tests, the logic for line statements only
enforces that when they are found, the remaining portion of the line
is treated as a statement declaration. This means that a line statement
can follow things such as text, which the grammar did not previously
allow. The grammar also did not allow a line statement to be the first
line in a file, wich this change also now supports. All non-newline
whitespace preceding the line statement will continue to be stripped.
---

diff --git a/grammar.ebnf b/grammar.ebnf
index 039d57fb..d68dbb20 100644
--- a/grammar.ebnf
+++ b/grammar.ebnf
@@ -115,7 +115,7 @@ line_block_end
 
 line_block_open
     =
-    "\n" {SP}* line_block_open_symbol {SP}*
+    { !"\n" SP }* line_block_open_symbol { !"\n" SP }*
     ;
 
 line_block_open_symbol