From: Kevin <github@kevin-brown.com>
Date: Tue, 21 May 2024 21:05:47 +0000 (-0400)
Subject: Add initial support for block statements
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fheads%2Fantlr-grammar;p=thirdparty%2Fjinja.git

Add initial support for block statements

We needed to add `end` versions of the block identifiers or else the
lexer would identify them as generic tokens.
---

diff --git a/grammar/JinjaGrammar.g4 b/grammar/JinjaGrammar.g4
index f9dda842..30f45d38 100644
--- a/grammar/JinjaGrammar.g4
+++ b/grammar/JinjaGrammar.g4
@@ -8,6 +8,7 @@ start : expressions;
 
 expression
     : inline_statement
+    | block_statement
     ;
 
 expressions     : expression*;
@@ -25,6 +26,11 @@ list_literal_value
 
 variable_name : IDENTIFIER;
 
+statement_block
+    :
+    STATEMENT_ID_BLOCK SP IDENTIFIER
+    ;
+
 statement_include_template
     : STRING_LITERAL
     | list_literal
@@ -61,23 +67,23 @@ statement_import
     | STATEMENT_ID_FROM SP statement_import_file SP STATEMENT_ID_IMPORT SP statement_import_variable_list (SP statement_include_context)?
     ;
 
-block_statement_id
-    : STATEMENT_ID_BLOCK
-    | STATEMENT_ID_SET
+block_end_statement_id
+    : STATEMENT_END_ID_BLOCK
+    | STATEMENT_END_ID_SET
     ;
 
-block_statement_with_parameters
-    : block_statement_id
-    | block_statement_id
-    ;
+// block_statement_with_parameters
+//     : block_statement_id
+//     | block_statement_id
+//     ;
 
 block_statement_without_parameters
-    : block_statement_id
+    : statement_block
     ;
 
 block_statement_start_content
     : block_statement_without_parameters
-    | block_statement_with_parameters
+    // | block_statement_with_parameters
     ;
 
 inline_statement_content
@@ -88,6 +94,6 @@ inline_statement_content
 inline_statement            : STATEMENT_OPEN inline_statement_content STATEMENT_CLOSE;
 
 block_statement_start       : STATEMENT_OPEN block_statement_start_content STATEMENT_CLOSE;
-block_statement_end         : STATEMENT_OPEN END_STATEMENT_ID_PREFIX block_statement_id STATEMENT_CLOSE;
+block_statement_end         : STATEMENT_OPEN block_end_statement_id STATEMENT_CLOSE;
 
 block_statement             : block_statement_start expressions block_statement_end;
\ No newline at end of file
diff --git a/grammar/JinjaLexer.g4 b/grammar/JinjaLexer.g4
index ecc7e35e..6359539c 100644
--- a/grammar/JinjaLexer.g4
+++ b/grammar/JinjaLexer.g4
@@ -79,11 +79,13 @@ SP              : [ \t\f]+;
 // Statement identifiers for built-in statements
 
 STATEMENT_ID_BLOCK      : 'block';
+STATEMENT_END_ID_BLOCK  : 'endblock';
 STATEMENT_ID_FROM       : 'from';
 STATEMENT_ID_IMPORT     : 'import';
 STATEMENT_ID_INCLUDE    : 'include';
 STATEMENT_ID_RAW        : 'raw';
 STATEMENT_ID_SET        : 'set';
+STATEMENT_END_ID_SET    : 'endset';
 
 STATEMENT_ID_IMPORT_AS  : 'as';