Output peg header comments to go file (#150)

pointlander · Nov 30, 2024 · 36333de · 36333de
1 parent bd929c4
commit 36333de
Show file tree

Hide file tree

Showing 9 changed files with 1,070 additions and 893 deletions.
diff --git a/grammars/c/c.peg b/grammars/c/c.peg
@@ -104,6 +104,9 @@
 #  A.2.4  External definitions
 #-------------------------------------------------------------------------
 
+#go:build grammars
+# +build grammars
+
 package main
 
 type C Peg {

diff --git a/grammars/calculator/calculator.peg b/grammars/calculator/calculator.peg
@@ -2,6 +2,9 @@
 # Use of this source code is governed by a BSD-style
 # license that can be found in the LICENSE file.
 
+#go:build grammars
+# +build grammars
+
 package main
 
 type Calculator Peg {

diff --git a/grammars/calculator_ast/calculator.peg b/grammars/calculator_ast/calculator.peg
@@ -2,6 +2,9 @@
 # Use of this source code is governed by a BSD-style
 # license that can be found in the LICENSE file.
 
+#go:build grammars
+# +build grammars
+
 package main
 
 type Calculator Peg {

diff --git a/grammars/fexl/fexl.peg b/grammars/fexl/fexl.peg
@@ -1,3 +1,8 @@
+# fexl
+
+#go:build grammars
+# +build grammars
+
 package main
 
 type Fexl Peg {

diff --git a/grammars/java/java_1_7.peg b/grammars/java/java_1_7.peg
@@ -91,6 +91,9 @@
 #  Compilation Unit
 #-------------------------------------------------------------------------
 
+#go:build grammars
+# +build grammars
+
 package main
 
 type Java Peg {

diff --git a/grammars/long_test/long.peg b/grammars/long_test/long.peg
@@ -2,6 +2,9 @@
 # Use of this source code is governed by a BSD-style
 # license that can be found in the LICENSE file.
 
+#go:build grammars
+# +build grammars
+
 package main
 
 type Long Peg {

diff --git a/peg.peg b/peg.peg
@@ -19,7 +19,7 @@ type Peg Peg {
 }
 
 # Hierarchical syntax
-Grammar		<- Spacing 'package' MustSpacing Identifier      { p.AddPackage(text) }
+Grammar		<- Header 'package' MustSpacing Identifier      { p.AddPackage(text) }
 			   Import*
                            'type' MustSpacing Identifier         { p.AddPeg(text) }
                            'Peg' Spacing Action              { p.AddState(text) }
@@ -118,6 +118,9 @@ Spacing		<- SpaceComment*
 MustSpacing	<- SpaceComment+
 Comment		<- ('#' / '//') (!EndOfLine .)* EndOfLine
 Space		<- ' ' / '\t' / EndOfLine
+Header		<- HeaderSpaceComment*
+HeaderSpaceComment <- (HeaderComment / <Space+> { p.AddSpace(text) } )
+HeaderComment <- ('#' / '//') <(!EndOfLine .)*> { p.AddComment(text) } EndOfLine
 EndOfLine	<- '\r\n' / '\n' / '\r'
 EndOfFile	<- !.
 Action		<- '{' < ActionBody* > '}' Spacing