From 11e40ac54d8063f288fa8b42c5cc8d08f1b586ec Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Mon, 7 Aug 2023 22:02:56 +0100
Subject: [PATCH 01/20] Added include support for ohm-cli

---
 .../cli/src/commands/generateBundles/index.js | 37 ++++++++++++++++++-
 .../commands/generateBundles/index.test.js    | 19 ++++++++++
 .../testdata/include/grammar.ohm              |  5 +++
 .../testdata/include/recursive.ohm            |  5 +++
 .../testdata/include/superGrammar.ohm         |  3 ++
 5 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 packages/cli/src/commands/generateBundles/testdata/include/grammar.ohm
 create mode 100644 packages/cli/src/commands/generateBundles/testdata/include/recursive.ohm
 create mode 100644 packages/cli/src/commands/generateBundles/testdata/include/superGrammar.ohm

diff --git a/packages/cli/src/commands/generateBundles/index.js b/packages/cli/src/commands/generateBundles/index.js
index 536fe691..452888b3 100644
--- a/packages/cli/src/commands/generateBundles/index.js
+++ b/packages/cli/src/commands/generateBundles/index.js
@@ -6,6 +6,7 @@ import path from 'path';
 import {generateTypes} from '../../helpers/generateTypes.js';
 
 const OHM_FILE_EXT = '.ohm';
+const OMH_IMPORT_REGEX = new RegExp(/^(include)\s+'([\w/\\.]+\.ohm)'$/gmi);
 
 function assertFileExtensionEquals(filename, ext) {
   const actual = path.extname(filename);
@@ -51,9 +52,15 @@ function generateBundles(patterns, opts) {
     // Don't process any files that don't have the right file extension.
     if (path.extname(sourcePath) !== OHM_FILE_EXT) continue;
 
-    const grammarSource = fs.readFileSync(sourcePath, 'utf-8');
+    let grammarSource = fs.readFileSync(sourcePath, 'utf-8');
+
+    // Pre-processing
+    grammarSource = preprocessGrammarImports(sourcePath, grammarSource);
+
     const grammars = ohm.grammars(grammarSource);
+
     generateRecipe(sourceFilename, grammars, writer, isEsm);
+
     if (withTypes) {
       generateTypesWithWriter(sourceFilename, grammars, writer);
     }
@@ -62,6 +69,34 @@ function generateBundles(patterns, opts) {
   return plan.plan;
 }
 
+function preprocessGrammarImports(grammarPath, grammarSource) {
+  // Check if imports are present
+  const importMatches = [...grammarSource.matchAll(OMH_IMPORT_REGEX)];
+
+  // False: return original input
+  if (!importMatches || importMatches.length === 0) {
+    return grammarSource;
+  }
+
+  // True: process imports
+  for (let i = 0; i < importMatches.length; i++) {
+    const [originalString, , importPath] = importMatches[i];
+
+    const absoluteImportPath = path.resolve(path.dirname(grammarPath), importPath);
+
+    // Read the contents of the import file
+    let importedGrammarSource = fs.readFileSync(absoluteImportPath, 'utf-8');
+
+    // Recursively preprocess the imported grammar source
+    importedGrammarSource = preprocessGrammarImports(absoluteImportPath, importedGrammarSource);
+
+    // Replace the import statement in the original source with the imported content
+    grammarSource = grammarSource.replace(originalString, importedGrammarSource);
+  }
+
+  return grammarSource;
+}
+
 function generateRecipe(grammarPath, grammars, writer, isEsm) {
   assertFileExtensionEquals(grammarPath, OHM_FILE_EXT);
 
diff --git a/packages/cli/src/commands/generateBundles/index.test.js b/packages/cli/src/commands/generateBundles/index.test.js
index ba32a39e..79676740 100644
--- a/packages/cli/src/commands/generateBundles/index.test.js
+++ b/packages/cli/src/commands/generateBundles/index.test.js
@@ -70,3 +70,22 @@ test('multiple grammars', t => {
   t.true(ns.G.match('G').succeeded());
   t.true(ns.G2.match('G2').succeeded());
 });
+
+test('include grammar', t => {
+  const {filesToWrite} = generateBundles(['include/grammar.ohm'], {...baseOpts, withTypes: true});
+
+  t.deepEqual(Object.keys(filesToWrite), [
+    'include/grammar.ohm-bundle.js',
+    'include/grammar.ohm-bundle.d.ts',
+  ]);
+});
+
+test('include grammar recursive', t => {
+  const {filesToWrite} = generateBundles(['include/recursive.ohm'], {...baseOpts, withTypes: true});
+
+  t.deepEqual(Object.keys(filesToWrite), [
+    'include/recursive.ohm-bundle.js',
+    'include/recursive.ohm-bundle.d.ts',
+  ]);
+});
+
diff --git a/packages/cli/src/commands/generateBundles/testdata/include/grammar.ohm b/packages/cli/src/commands/generateBundles/testdata/include/grammar.ohm
new file mode 100644
index 00000000..1388e300
--- /dev/null
+++ b/packages/cli/src/commands/generateBundles/testdata/include/grammar.ohm
@@ -0,0 +1,5 @@
+include 'superGrammar.ohm'
+
+Grammar <: SuperGrammar { 
+    x := "G" 
+}
\ No newline at end of file
diff --git a/packages/cli/src/commands/generateBundles/testdata/include/recursive.ohm b/packages/cli/src/commands/generateBundles/testdata/include/recursive.ohm
new file mode 100644
index 00000000..fccb8813
--- /dev/null
+++ b/packages/cli/src/commands/generateBundles/testdata/include/recursive.ohm
@@ -0,0 +1,5 @@
+include 'grammar.ohm'
+
+GrammarRecursive <: Grammar { 
+    x := "G" 
+}
\ No newline at end of file
diff --git a/packages/cli/src/commands/generateBundles/testdata/include/superGrammar.ohm b/packages/cli/src/commands/generateBundles/testdata/include/superGrammar.ohm
new file mode 100644
index 00000000..d45968c9
--- /dev/null
+++ b/packages/cli/src/commands/generateBundles/testdata/include/superGrammar.ohm
@@ -0,0 +1,3 @@
+SuperGrammar { 
+    x = "X" 
+}
\ No newline at end of file

From afb04cb95fb6ee8220d55525660016af806fb513 Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Mon, 7 Aug 2023 22:19:08 +0100
Subject: [PATCH 02/20] Fixed Typo

---
 packages/cli/src/commands/generateBundles/index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/cli/src/commands/generateBundles/index.js b/packages/cli/src/commands/generateBundles/index.js
index 452888b3..1a259088 100644
--- a/packages/cli/src/commands/generateBundles/index.js
+++ b/packages/cli/src/commands/generateBundles/index.js
@@ -6,7 +6,7 @@ import path from 'path';
 import {generateTypes} from '../../helpers/generateTypes.js';
 
 const OHM_FILE_EXT = '.ohm';
-const OMH_IMPORT_REGEX = new RegExp(/^(include)\s+'([\w/\\.]+\.ohm)'$/gmi);
+const OHM_IMPORT_REGEX = new RegExp(/^(include)\s+'([\w/\\.]+\.ohm)'$/gmi);
 
 function assertFileExtensionEquals(filename, ext) {
   const actual = path.extname(filename);
@@ -71,7 +71,7 @@ function generateBundles(patterns, opts) {
 
 function preprocessGrammarImports(grammarPath, grammarSource) {
   // Check if imports are present
-  const importMatches = [...grammarSource.matchAll(OMH_IMPORT_REGEX)];
+  const importMatches = [...grammarSource.matchAll(OHM_IMPORT_REGEX)];
 
   // False: return original input
   if (!importMatches || importMatches.length === 0) {

From d64f080ee2340915a2899e89c28484bee2c17307 Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Wed, 16 Aug 2023 14:01:14 +0100
Subject: [PATCH 03/20] Enforcing LF line endings on windows

---
 .gitattributes        | 2 ++
 .vscode/settings.json | 3 +++
 ~/.gitconfig          | 2 ++
 3 files changed, 7 insertions(+)
 create mode 100644 .gitattributes
 create mode 100644 .vscode/settings.json
 create mode 100644 ~/.gitconfig

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..623190de
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+ text=lf
+ *.js linguist-vendored eol=lf
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 00000000..37441bee
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "files.eol": "\n"
+}
\ No newline at end of file
diff --git a/~/.gitconfig b/~/.gitconfig
new file mode 100644
index 00000000..db37092e
--- /dev/null
+++ b/~/.gitconfig
@@ -0,0 +1,2 @@
+[core]
+autocrlf = false
\ No newline at end of file

From e3c3212c23f50e403539be7d19c09b85ee949193 Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Wed, 16 Aug 2023 14:02:33 +0100
Subject: [PATCH 04/20] Added support for include statement in the Ohm grammar

---
 packages/ohm-js/src/ohm-grammar.ohm | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index a5447fbf..27bfa249 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -1,10 +1,13 @@
 Ohm {
 
   Grammars
-    = Grammar*
-
+    =  (IncludeStatement+)? Grammar*
+    
   Grammar
-    = ident SuperGrammar? "{" Rule* "}"
+    = ident SuperGrammar? "{" Rule* "}" 
+
+  IncludeStatement
+    = include "'" relativePath "'"
 
   SuperGrammar
     = "<:" ident
@@ -61,6 +64,12 @@ Ohm {
     | terminal                                       -- terminal
     | "(" Alt ")"                                    -- paren
 
+  include
+  	= caseInsensitive<"include">
+    
+  relativePath 
+  	= ~"'" (letter | digit | "-" | "\\" | "/" | ".")+ 
+
   ruleDescr  (a rule description)
     = "(" ruleDescrText ")"
 

From 920cadfb24f3631a1d045228c0907c300c6b4dda Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Wed, 16 Aug 2023 14:05:49 +0100
Subject: [PATCH 05/20] Revert "Added include support for ohm-cli"

This reverts commit 11e40ac54d8063f288fa8b42c5cc8d08f1b586ec.
---
 .../cli/src/commands/generateBundles/index.js | 37 +------------------
 .../commands/generateBundles/index.test.js    | 19 ----------
 .../testdata/include/grammar.ohm              |  5 ---
 .../testdata/include/recursive.ohm            |  5 ---
 .../testdata/include/superGrammar.ohm         |  3 --
 5 files changed, 1 insertion(+), 68 deletions(-)
 delete mode 100644 packages/cli/src/commands/generateBundles/testdata/include/grammar.ohm
 delete mode 100644 packages/cli/src/commands/generateBundles/testdata/include/recursive.ohm
 delete mode 100644 packages/cli/src/commands/generateBundles/testdata/include/superGrammar.ohm

diff --git a/packages/cli/src/commands/generateBundles/index.js b/packages/cli/src/commands/generateBundles/index.js
index 1a259088..536fe691 100644
--- a/packages/cli/src/commands/generateBundles/index.js
+++ b/packages/cli/src/commands/generateBundles/index.js
@@ -6,7 +6,6 @@ import path from 'path';
 import {generateTypes} from '../../helpers/generateTypes.js';
 
 const OHM_FILE_EXT = '.ohm';
-const OHM_IMPORT_REGEX = new RegExp(/^(include)\s+'([\w/\\.]+\.ohm)'$/gmi);
 
 function assertFileExtensionEquals(filename, ext) {
   const actual = path.extname(filename);
@@ -52,15 +51,9 @@ function generateBundles(patterns, opts) {
     // Don't process any files that don't have the right file extension.
     if (path.extname(sourcePath) !== OHM_FILE_EXT) continue;
 
-    let grammarSource = fs.readFileSync(sourcePath, 'utf-8');
-
-    // Pre-processing
-    grammarSource = preprocessGrammarImports(sourcePath, grammarSource);
-
+    const grammarSource = fs.readFileSync(sourcePath, 'utf-8');
     const grammars = ohm.grammars(grammarSource);
-
     generateRecipe(sourceFilename, grammars, writer, isEsm);
-
     if (withTypes) {
       generateTypesWithWriter(sourceFilename, grammars, writer);
     }
@@ -69,34 +62,6 @@ function generateBundles(patterns, opts) {
   return plan.plan;
 }
 
-function preprocessGrammarImports(grammarPath, grammarSource) {
-  // Check if imports are present
-  const importMatches = [...grammarSource.matchAll(OHM_IMPORT_REGEX)];
-
-  // False: return original input
-  if (!importMatches || importMatches.length === 0) {
-    return grammarSource;
-  }
-
-  // True: process imports
-  for (let i = 0; i < importMatches.length; i++) {
-    const [originalString, , importPath] = importMatches[i];
-
-    const absoluteImportPath = path.resolve(path.dirname(grammarPath), importPath);
-
-    // Read the contents of the import file
-    let importedGrammarSource = fs.readFileSync(absoluteImportPath, 'utf-8');
-
-    // Recursively preprocess the imported grammar source
-    importedGrammarSource = preprocessGrammarImports(absoluteImportPath, importedGrammarSource);
-
-    // Replace the import statement in the original source with the imported content
-    grammarSource = grammarSource.replace(originalString, importedGrammarSource);
-  }
-
-  return grammarSource;
-}
-
 function generateRecipe(grammarPath, grammars, writer, isEsm) {
   assertFileExtensionEquals(grammarPath, OHM_FILE_EXT);
 
diff --git a/packages/cli/src/commands/generateBundles/index.test.js b/packages/cli/src/commands/generateBundles/index.test.js
index 79676740..ba32a39e 100644
--- a/packages/cli/src/commands/generateBundles/index.test.js
+++ b/packages/cli/src/commands/generateBundles/index.test.js
@@ -70,22 +70,3 @@ test('multiple grammars', t => {
   t.true(ns.G.match('G').succeeded());
   t.true(ns.G2.match('G2').succeeded());
 });
-
-test('include grammar', t => {
-  const {filesToWrite} = generateBundles(['include/grammar.ohm'], {...baseOpts, withTypes: true});
-
-  t.deepEqual(Object.keys(filesToWrite), [
-    'include/grammar.ohm-bundle.js',
-    'include/grammar.ohm-bundle.d.ts',
-  ]);
-});
-
-test('include grammar recursive', t => {
-  const {filesToWrite} = generateBundles(['include/recursive.ohm'], {...baseOpts, withTypes: true});
-
-  t.deepEqual(Object.keys(filesToWrite), [
-    'include/recursive.ohm-bundle.js',
-    'include/recursive.ohm-bundle.d.ts',
-  ]);
-});
-
diff --git a/packages/cli/src/commands/generateBundles/testdata/include/grammar.ohm b/packages/cli/src/commands/generateBundles/testdata/include/grammar.ohm
deleted file mode 100644
index 1388e300..00000000
--- a/packages/cli/src/commands/generateBundles/testdata/include/grammar.ohm
+++ /dev/null
@@ -1,5 +0,0 @@
-include 'superGrammar.ohm'
-
-Grammar <: SuperGrammar { 
-    x := "G" 
-}
\ No newline at end of file
diff --git a/packages/cli/src/commands/generateBundles/testdata/include/recursive.ohm b/packages/cli/src/commands/generateBundles/testdata/include/recursive.ohm
deleted file mode 100644
index fccb8813..00000000
--- a/packages/cli/src/commands/generateBundles/testdata/include/recursive.ohm
+++ /dev/null
@@ -1,5 +0,0 @@
-include 'grammar.ohm'
-
-GrammarRecursive <: Grammar { 
-    x := "G" 
-}
\ No newline at end of file
diff --git a/packages/cli/src/commands/generateBundles/testdata/include/superGrammar.ohm b/packages/cli/src/commands/generateBundles/testdata/include/superGrammar.ohm
deleted file mode 100644
index d45968c9..00000000
--- a/packages/cli/src/commands/generateBundles/testdata/include/superGrammar.ohm
+++ /dev/null
@@ -1,3 +0,0 @@
-SuperGrammar { 
-    x = "X" 
-}
\ No newline at end of file

From 004df2af27a9e04a78ac5c1a207e211a432e1f16 Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Wed, 16 Aug 2023 14:06:21 +0100
Subject: [PATCH 06/20] Removed redundant whitespace

---
 packages/ohm-js/src/ohm-grammar.ohm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 27bfa249..927decc4 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -2,7 +2,7 @@ Ohm {
 
   Grammars
     =  (IncludeStatement+)? Grammar*
-    
+
   Grammar
     = ident SuperGrammar? "{" Rule* "}" 
 

From 50480e1ee925d2fcc7f9a7301ee48ee840286c8a Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Wed, 16 Aug 2023 14:07:10 +0100
Subject: [PATCH 07/20] Reordered rules in grammar

---
 packages/ohm-js/src/ohm-grammar.ohm | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 927decc4..677a310f 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -3,12 +3,12 @@ Ohm {
   Grammars
     =  (IncludeStatement+)? Grammar*
 
-  Grammar
-    = ident SuperGrammar? "{" Rule* "}" 
-
   IncludeStatement
     = include "'" relativePath "'"
 
+  Grammar
+    = ident SuperGrammar? "{" Rule* "}" 
+
   SuperGrammar
     = "<:" ident
 

From fb13e78de97081d4410ed5576fb898ec7d187bb7 Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Wed, 16 Aug 2023 14:07:48 +0100
Subject: [PATCH 08/20] Renamed lexical rule

---
 packages/ohm-js/src/ohm-grammar.ohm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 677a310f..79eaa8fc 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -4,7 +4,7 @@ Ohm {
     =  (IncludeStatement+)? Grammar*
 
   IncludeStatement
-    = include "'" relativePath "'"
+    = include "'" relativeFilePath "'"
 
   Grammar
     = ident SuperGrammar? "{" Rule* "}" 
@@ -67,7 +67,7 @@ Ohm {
   include
   	= caseInsensitive<"include">
     
-  relativePath 
+  relativeFilePath 
   	= ~"'" (letter | digit | "-" | "\\" | "/" | ".")+ 
 
   ruleDescr  (a rule description)

From f2b87d929409d44505c6b4493d4a92b8e7e6f9fc Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Wed, 16 Aug 2023 14:08:16 +0100
Subject: [PATCH 09/20] Removed redundant whitespace

---
 packages/ohm-js/src/ohm-grammar.ohm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 79eaa8fc..09cfcbdf 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -7,7 +7,7 @@ Ohm {
     = include "'" relativeFilePath "'"
 
   Grammar
-    = ident SuperGrammar? "{" Rule* "}" 
+    = ident SuperGrammar? "{" Rule* "}"
 
   SuperGrammar
     = "<:" ident

From 7d04b35cb33670cb774bdae99345f8493c88152d Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Wed, 16 Aug 2023 14:14:39 +0000
Subject: [PATCH 10/20] Added new Rule that encompasses Includes and Grammas
 into a "Document".

---
 packages/ohm-js/dist/ohm-grammar.js |  2 +-
 packages/ohm-js/src/ohm-grammar.ohm | 12 +++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/packages/ohm-js/dist/ohm-grammar.js b/packages/ohm-js/dist/ohm-grammar.js
index 072cd950..cde32880 100644
--- a/packages/ohm-js/dist/ohm-grammar.js
+++ b/packages/ohm-js/dist/ohm-grammar.js
@@ -1,2 +1,2 @@
 import {makeRecipe} from '../src/main-kernel.js';
-export default makeRecipe(["grammar",{"source":"Ohm {\n\n  Grammars\n    = Grammar*\n\n  Grammar\n    = ident SuperGrammar? \"{\" Rule* \"}\"\n\n  SuperGrammar\n    = \"<:\" ident\n\n  Rule\n    = ident Formals? ruleDescr? \"=\"  RuleBody  -- define\n    | ident Formals?            \":=\" OverrideRuleBody  -- override\n    | ident Formals?            \"+=\" RuleBody  -- extend\n\n  RuleBody\n    = \"|\"? NonemptyListOf<TopLevelTerm, \"|\">\n\n  TopLevelTerm\n    = Seq caseName  -- inline\n    | Seq\n\n  OverrideRuleBody\n    = \"|\"? NonemptyListOf<OverrideTopLevelTerm, \"|\">\n\n  OverrideTopLevelTerm\n    = \"...\"  -- superSplice\n    | TopLevelTerm\n\n  Formals\n    = \"<\" ListOf<ident, \",\"> \">\"\n\n  Params\n    = \"<\" ListOf<Seq, \",\"> \">\"\n\n  Alt\n    = NonemptyListOf<Seq, \"|\">\n\n  Seq\n    = Iter*\n\n  Iter\n    = Pred \"*\"  -- star\n    | Pred \"+\"  -- plus\n    | Pred \"?\"  -- opt\n    | Pred\n\n  Pred\n    = \"~\" Lex  -- not\n    | \"&\" Lex  -- lookahead\n    | Lex\n\n  Lex\n    = \"#\" Base  -- lex\n    | Base\n\n  Base\n    = ident Params? ~(ruleDescr? \"=\" | \":=\" | \"+=\")  -- application\n    | oneCharTerminal \"..\" oneCharTerminal           -- range\n    | terminal                                       -- terminal\n    | \"(\" Alt \")\"                                    -- paren\n\n  ruleDescr  (a rule description)\n    = \"(\" ruleDescrText \")\"\n\n  ruleDescrText\n    = (~\")\" any)*\n\n  caseName\n    = \"--\" (~\"\\n\" space)* name (~\"\\n\" space)* (\"\\n\" | &\"}\")\n\n  name  (a name)\n    = nameFirst nameRest*\n\n  nameFirst\n    = \"_\"\n    | letter\n\n  nameRest\n    = \"_\"\n    | alnum\n\n  ident  (an identifier)\n    = name\n\n  terminal\n    = \"\\\"\" terminalChar* \"\\\"\"\n\n  oneCharTerminal\n    = \"\\\"\" terminalChar \"\\\"\"\n\n  terminalChar\n    = escapeChar\n      | ~\"\\\\\" ~\"\\\"\" ~\"\\n\" \"\\u{0}\"..\"\\u{10FFFF}\"\n\n  escapeChar  (an escape sequence)\n    = \"\\\\\\\\\"                                     -- backslash\n    | \"\\\\\\\"\"                                     -- doubleQuote\n    | \"\\\\\\'\"                                     -- singleQuote\n    | \"\\\\b\"                                      -- backspace\n    | \"\\\\n\"                                      -- lineFeed\n    | \"\\\\r\"                                      -- carriageReturn\n    | \"\\\\t\"                                      -- tab\n    | \"\\\\u{\" hexDigit hexDigit? hexDigit?\n             hexDigit? hexDigit? hexDigit? \"}\"   -- unicodeCodePoint\n    | \"\\\\u\" hexDigit hexDigit hexDigit hexDigit  -- unicodeEscape\n    | \"\\\\x\" hexDigit hexDigit                    -- hexEscape\n\n  space\n   += comment\n\n  comment\n    = \"//\" (~\"\\n\" any)* &(\"\\n\" | end)  -- singleLine\n    | \"/*\" (~\"*/\" any)* \"*/\"  -- multiLine\n\n  tokens = token*\n\n  token = caseName | comment | ident | operator | punctuation | terminal | any\n\n  operator = \"<:\" | \"=\" | \":=\" | \"+=\" | \"*\" | \"+\" | \"?\" | \"~\" | \"&\"\n\n  punctuation = \"<\" | \">\" | \",\" | \"--\"\n}"},"Ohm",null,"Grammars",{"Grammars":["define",{"sourceInterval":[9,32]},null,[],["star",{"sourceInterval":[24,32]},["app",{"sourceInterval":[24,31]},"Grammar",[]]]],"Grammar":["define",{"sourceInterval":[36,83]},null,[],["seq",{"sourceInterval":[50,83]},["app",{"sourceInterval":[50,55]},"ident",[]],["opt",{"sourceInterval":[56,69]},["app",{"sourceInterval":[56,68]},"SuperGrammar",[]]],["terminal",{"sourceInterval":[70,73]},"{"],["star",{"sourceInterval":[74,79]},["app",{"sourceInterval":[74,78]},"Rule",[]]],["terminal",{"sourceInterval":[80,83]},"}"]]],"SuperGrammar":["define",{"sourceInterval":[87,116]},null,[],["seq",{"sourceInterval":[106,116]},["terminal",{"sourceInterval":[106,110]},"<:"],["app",{"sourceInterval":[111,116]},"ident",[]]]],"Rule_define":["define",{"sourceInterval":[131,181]},null,[],["seq",{"sourceInterval":[131,170]},["app",{"sourceInterval":[131,136]},"ident",[]],["opt",{"sourceInterval":[137,145]},["app",{"sourceInterval":[137,144]},"Formals",[]]],["opt",{"sourceInterval":[146,156]},["app",{"sourceInterval":[146,155]},"ruleDescr",[]]],["terminal",{"sourceInterval":[157,160]},"="],["app",{"sourceInterval":[162,170]},"RuleBody",[]]]],"Rule_override":["define",{"sourceInterval":[188,248]},null,[],["seq",{"sourceInterval":[188,235]},["app",{"sourceInterval":[188,193]},"ident",[]],["opt",{"sourceInterval":[194,202]},["app",{"sourceInterval":[194,201]},"Formals",[]]],["terminal",{"sourceInterval":[214,218]},":="],["app",{"sourceInterval":[219,235]},"OverrideRuleBody",[]]]],"Rule_extend":["define",{"sourceInterval":[255,305]},null,[],["seq",{"sourceInterval":[255,294]},["app",{"sourceInterval":[255,260]},"ident",[]],["opt",{"sourceInterval":[261,269]},["app",{"sourceInterval":[261,268]},"Formals",[]]],["terminal",{"sourceInterval":[281,285]},"+="],["app",{"sourceInterval":[286,294]},"RuleBody",[]]]],"Rule":["define",{"sourceInterval":[120,305]},null,[],["alt",{"sourceInterval":[131,305]},["app",{"sourceInterval":[131,170]},"Rule_define",[]],["app",{"sourceInterval":[188,235]},"Rule_override",[]],["app",{"sourceInterval":[255,294]},"Rule_extend",[]]]],"RuleBody":["define",{"sourceInterval":[309,362]},null,[],["seq",{"sourceInterval":[324,362]},["opt",{"sourceInterval":[324,328]},["terminal",{"sourceInterval":[324,327]},"|"]],["app",{"sourceInterval":[329,362]},"NonemptyListOf",[["app",{"sourceInterval":[344,356]},"TopLevelTerm",[]],["terminal",{"sourceInterval":[358,361]},"|"]]]]],"TopLevelTerm_inline":["define",{"sourceInterval":[385,408]},null,[],["seq",{"sourceInterval":[385,397]},["app",{"sourceInterval":[385,388]},"Seq",[]],["app",{"sourceInterval":[389,397]},"caseName",[]]]],"TopLevelTerm":["define",{"sourceInterval":[366,418]},null,[],["alt",{"sourceInterval":[385,418]},["app",{"sourceInterval":[385,397]},"TopLevelTerm_inline",[]],["app",{"sourceInterval":[415,418]},"Seq",[]]]],"OverrideRuleBody":["define",{"sourceInterval":[422,491]},null,[],["seq",{"sourceInterval":[445,491]},["opt",{"sourceInterval":[445,449]},["terminal",{"sourceInterval":[445,448]},"|"]],["app",{"sourceInterval":[450,491]},"NonemptyListOf",[["app",{"sourceInterval":[465,485]},"OverrideTopLevelTerm",[]],["terminal",{"sourceInterval":[487,490]},"|"]]]]],"OverrideTopLevelTerm_superSplice":["define",{"sourceInterval":[522,543]},null,[],["terminal",{"sourceInterval":[522,527]},"..."]],"OverrideTopLevelTerm":["define",{"sourceInterval":[495,562]},null,[],["alt",{"sourceInterval":[522,562]},["app",{"sourceInterval":[522,527]},"OverrideTopLevelTerm_superSplice",[]],["app",{"sourceInterval":[550,562]},"TopLevelTerm",[]]]],"Formals":["define",{"sourceInterval":[566,606]},null,[],["seq",{"sourceInterval":[580,606]},["terminal",{"sourceInterval":[580,583]},"<"],["app",{"sourceInterval":[584,602]},"ListOf",[["app",{"sourceInterval":[591,596]},"ident",[]],["terminal",{"sourceInterval":[598,601]},","]]],["terminal",{"sourceInterval":[603,606]},">"]]],"Params":["define",{"sourceInterval":[610,647]},null,[],["seq",{"sourceInterval":[623,647]},["terminal",{"sourceInterval":[623,626]},"<"],["app",{"sourceInterval":[627,643]},"ListOf",[["app",{"sourceInterval":[634,637]},"Seq",[]],["terminal",{"sourceInterval":[639,642]},","]]],["terminal",{"sourceInterval":[644,647]},">"]]],"Alt":["define",{"sourceInterval":[651,685]},null,[],["app",{"sourceInterval":[661,685]},"NonemptyListOf",[["app",{"sourceInterval":[676,679]},"Seq",[]],["terminal",{"sourceInterval":[681,684]},"|"]]]],"Seq":["define",{"sourceInterval":[689,704]},null,[],["star",{"sourceInterval":[699,704]},["app",{"sourceInterval":[699,703]},"Iter",[]]]],"Iter_star":["define",{"sourceInterval":[719,736]},null,[],["seq",{"sourceInterval":[719,727]},["app",{"sourceInterval":[719,723]},"Pred",[]],["terminal",{"sourceInterval":[724,727]},"*"]]],"Iter_plus":["define",{"sourceInterval":[743,760]},null,[],["seq",{"sourceInterval":[743,751]},["app",{"sourceInterval":[743,747]},"Pred",[]],["terminal",{"sourceInterval":[748,751]},"+"]]],"Iter_opt":["define",{"sourceInterval":[767,783]},null,[],["seq",{"sourceInterval":[767,775]},["app",{"sourceInterval":[767,771]},"Pred",[]],["terminal",{"sourceInterval":[772,775]},"?"]]],"Iter":["define",{"sourceInterval":[708,794]},null,[],["alt",{"sourceInterval":[719,794]},["app",{"sourceInterval":[719,727]},"Iter_star",[]],["app",{"sourceInterval":[743,751]},"Iter_plus",[]],["app",{"sourceInterval":[767,775]},"Iter_opt",[]],["app",{"sourceInterval":[790,794]},"Pred",[]]]],"Pred_not":["define",{"sourceInterval":[809,824]},null,[],["seq",{"sourceInterval":[809,816]},["terminal",{"sourceInterval":[809,812]},"~"],["app",{"sourceInterval":[813,816]},"Lex",[]]]],"Pred_lookahead":["define",{"sourceInterval":[831,852]},null,[],["seq",{"sourceInterval":[831,838]},["terminal",{"sourceInterval":[831,834]},"&"],["app",{"sourceInterval":[835,838]},"Lex",[]]]],"Pred":["define",{"sourceInterval":[798,862]},null,[],["alt",{"sourceInterval":[809,862]},["app",{"sourceInterval":[809,816]},"Pred_not",[]],["app",{"sourceInterval":[831,838]},"Pred_lookahead",[]],["app",{"sourceInterval":[859,862]},"Lex",[]]]],"Lex_lex":["define",{"sourceInterval":[876,892]},null,[],["seq",{"sourceInterval":[876,884]},["terminal",{"sourceInterval":[876,879]},"#"],["app",{"sourceInterval":[880,884]},"Base",[]]]],"Lex":["define",{"sourceInterval":[866,903]},null,[],["alt",{"sourceInterval":[876,903]},["app",{"sourceInterval":[876,884]},"Lex_lex",[]],["app",{"sourceInterval":[899,903]},"Base",[]]]],"Base_application":["define",{"sourceInterval":[918,979]},null,[],["seq",{"sourceInterval":[918,963]},["app",{"sourceInterval":[918,923]},"ident",[]],["opt",{"sourceInterval":[924,931]},["app",{"sourceInterval":[924,930]},"Params",[]]],["not",{"sourceInterval":[932,963]},["alt",{"sourceInterval":[934,962]},["seq",{"sourceInterval":[934,948]},["opt",{"sourceInterval":[934,944]},["app",{"sourceInterval":[934,943]},"ruleDescr",[]]],["terminal",{"sourceInterval":[945,948]},"="]],["terminal",{"sourceInterval":[951,955]},":="],["terminal",{"sourceInterval":[958,962]},"+="]]]]],"Base_range":["define",{"sourceInterval":[986,1041]},null,[],["seq",{"sourceInterval":[986,1022]},["app",{"sourceInterval":[986,1001]},"oneCharTerminal",[]],["terminal",{"sourceInterval":[1002,1006]},".."],["app",{"sourceInterval":[1007,1022]},"oneCharTerminal",[]]]],"Base_terminal":["define",{"sourceInterval":[1048,1106]},null,[],["app",{"sourceInterval":[1048,1056]},"terminal",[]]],"Base_paren":["define",{"sourceInterval":[1113,1168]},null,[],["seq",{"sourceInterval":[1113,1124]},["terminal",{"sourceInterval":[1113,1116]},"("],["app",{"sourceInterval":[1117,1120]},"Alt",[]],["terminal",{"sourceInterval":[1121,1124]},")"]]],"Base":["define",{"sourceInterval":[907,1168]},null,[],["alt",{"sourceInterval":[918,1168]},["app",{"sourceInterval":[918,963]},"Base_application",[]],["app",{"sourceInterval":[986,1022]},"Base_range",[]],["app",{"sourceInterval":[1048,1056]},"Base_terminal",[]],["app",{"sourceInterval":[1113,1124]},"Base_paren",[]]]],"ruleDescr":["define",{"sourceInterval":[1172,1231]},"a rule description",[],["seq",{"sourceInterval":[1210,1231]},["terminal",{"sourceInterval":[1210,1213]},"("],["app",{"sourceInterval":[1214,1227]},"ruleDescrText",[]],["terminal",{"sourceInterval":[1228,1231]},")"]]],"ruleDescrText":["define",{"sourceInterval":[1235,1266]},null,[],["star",{"sourceInterval":[1255,1266]},["seq",{"sourceInterval":[1256,1264]},["not",{"sourceInterval":[1256,1260]},["terminal",{"sourceInterval":[1257,1260]},")"]],["app",{"sourceInterval":[1261,1264]},"any",[]]]]],"caseName":["define",{"sourceInterval":[1270,1338]},null,[],["seq",{"sourceInterval":[1285,1338]},["terminal",{"sourceInterval":[1285,1289]},"--"],["star",{"sourceInterval":[1290,1304]},["seq",{"sourceInterval":[1291,1302]},["not",{"sourceInterval":[1291,1296]},["terminal",{"sourceInterval":[1292,1296]},"\n"]],["app",{"sourceInterval":[1297,1302]},"space",[]]]],["app",{"sourceInterval":[1305,1309]},"name",[]],["star",{"sourceInterval":[1310,1324]},["seq",{"sourceInterval":[1311,1322]},["not",{"sourceInterval":[1311,1316]},["terminal",{"sourceInterval":[1312,1316]},"\n"]],["app",{"sourceInterval":[1317,1322]},"space",[]]]],["alt",{"sourceInterval":[1326,1337]},["terminal",{"sourceInterval":[1326,1330]},"\n"],["lookahead",{"sourceInterval":[1333,1337]},["terminal",{"sourceInterval":[1334,1337]},"}"]]]]],"name":["define",{"sourceInterval":[1342,1382]},"a name",[],["seq",{"sourceInterval":[1363,1382]},["app",{"sourceInterval":[1363,1372]},"nameFirst",[]],["star",{"sourceInterval":[1373,1382]},["app",{"sourceInterval":[1373,1381]},"nameRest",[]]]]],"nameFirst":["define",{"sourceInterval":[1386,1418]},null,[],["alt",{"sourceInterval":[1402,1418]},["terminal",{"sourceInterval":[1402,1405]},"_"],["app",{"sourceInterval":[1412,1418]},"letter",[]]]],"nameRest":["define",{"sourceInterval":[1422,1452]},null,[],["alt",{"sourceInterval":[1437,1452]},["terminal",{"sourceInterval":[1437,1440]},"_"],["app",{"sourceInterval":[1447,1452]},"alnum",[]]]],"ident":["define",{"sourceInterval":[1456,1489]},"an identifier",[],["app",{"sourceInterval":[1485,1489]},"name",[]]],"terminal":["define",{"sourceInterval":[1493,1531]},null,[],["seq",{"sourceInterval":[1508,1531]},["terminal",{"sourceInterval":[1508,1512]},"\""],["star",{"sourceInterval":[1513,1526]},["app",{"sourceInterval":[1513,1525]},"terminalChar",[]]],["terminal",{"sourceInterval":[1527,1531]},"\""]]],"oneCharTerminal":["define",{"sourceInterval":[1535,1579]},null,[],["seq",{"sourceInterval":[1557,1579]},["terminal",{"sourceInterval":[1557,1561]},"\""],["app",{"sourceInterval":[1562,1574]},"terminalChar",[]],["terminal",{"sourceInterval":[1575,1579]},"\""]]],"terminalChar":["define",{"sourceInterval":[1583,1660]},null,[],["alt",{"sourceInterval":[1602,1660]},["app",{"sourceInterval":[1602,1612]},"escapeChar",[]],["seq",{"sourceInterval":[1621,1660]},["not",{"sourceInterval":[1621,1626]},["terminal",{"sourceInterval":[1622,1626]},"\\"]],["not",{"sourceInterval":[1627,1632]},["terminal",{"sourceInterval":[1628,1632]},"\""]],["not",{"sourceInterval":[1633,1638]},["terminal",{"sourceInterval":[1634,1638]},"\n"]],["range",{"sourceInterval":[1639,1660]},"\u0000","􏿿"]]]],"escapeChar_backslash":["define",{"sourceInterval":[1703,1758]},null,[],["terminal",{"sourceInterval":[1703,1709]},"\\\\"]],"escapeChar_doubleQuote":["define",{"sourceInterval":[1765,1822]},null,[],["terminal",{"sourceInterval":[1765,1771]},"\\\""]],"escapeChar_singleQuote":["define",{"sourceInterval":[1829,1886]},null,[],["terminal",{"sourceInterval":[1829,1835]},"\\'"]],"escapeChar_backspace":["define",{"sourceInterval":[1893,1948]},null,[],["terminal",{"sourceInterval":[1893,1898]},"\\b"]],"escapeChar_lineFeed":["define",{"sourceInterval":[1955,2009]},null,[],["terminal",{"sourceInterval":[1955,1960]},"\\n"]],"escapeChar_carriageReturn":["define",{"sourceInterval":[2016,2076]},null,[],["terminal",{"sourceInterval":[2016,2021]},"\\r"]],"escapeChar_tab":["define",{"sourceInterval":[2083,2132]},null,[],["terminal",{"sourceInterval":[2083,2088]},"\\t"]],"escapeChar_unicodeCodePoint":["define",{"sourceInterval":[2139,2243]},null,[],["seq",{"sourceInterval":[2139,2221]},["terminal",{"sourceInterval":[2139,2145]},"\\u{"],["app",{"sourceInterval":[2146,2154]},"hexDigit",[]],["opt",{"sourceInterval":[2155,2164]},["app",{"sourceInterval":[2155,2163]},"hexDigit",[]]],["opt",{"sourceInterval":[2165,2174]},["app",{"sourceInterval":[2165,2173]},"hexDigit",[]]],["opt",{"sourceInterval":[2188,2197]},["app",{"sourceInterval":[2188,2196]},"hexDigit",[]]],["opt",{"sourceInterval":[2198,2207]},["app",{"sourceInterval":[2198,2206]},"hexDigit",[]]],["opt",{"sourceInterval":[2208,2217]},["app",{"sourceInterval":[2208,2216]},"hexDigit",[]]],["terminal",{"sourceInterval":[2218,2221]},"}"]]],"escapeChar_unicodeEscape":["define",{"sourceInterval":[2250,2309]},null,[],["seq",{"sourceInterval":[2250,2291]},["terminal",{"sourceInterval":[2250,2255]},"\\u"],["app",{"sourceInterval":[2256,2264]},"hexDigit",[]],["app",{"sourceInterval":[2265,2273]},"hexDigit",[]],["app",{"sourceInterval":[2274,2282]},"hexDigit",[]],["app",{"sourceInterval":[2283,2291]},"hexDigit",[]]]],"escapeChar_hexEscape":["define",{"sourceInterval":[2316,2371]},null,[],["seq",{"sourceInterval":[2316,2339]},["terminal",{"sourceInterval":[2316,2321]},"\\x"],["app",{"sourceInterval":[2322,2330]},"hexDigit",[]],["app",{"sourceInterval":[2331,2339]},"hexDigit",[]]]],"escapeChar":["define",{"sourceInterval":[1664,2371]},"an escape sequence",[],["alt",{"sourceInterval":[1703,2371]},["app",{"sourceInterval":[1703,1709]},"escapeChar_backslash",[]],["app",{"sourceInterval":[1765,1771]},"escapeChar_doubleQuote",[]],["app",{"sourceInterval":[1829,1835]},"escapeChar_singleQuote",[]],["app",{"sourceInterval":[1893,1898]},"escapeChar_backspace",[]],["app",{"sourceInterval":[1955,1960]},"escapeChar_lineFeed",[]],["app",{"sourceInterval":[2016,2021]},"escapeChar_carriageReturn",[]],["app",{"sourceInterval":[2083,2088]},"escapeChar_tab",[]],["app",{"sourceInterval":[2139,2221]},"escapeChar_unicodeCodePoint",[]],["app",{"sourceInterval":[2250,2291]},"escapeChar_unicodeEscape",[]],["app",{"sourceInterval":[2316,2339]},"escapeChar_hexEscape",[]]]],"space":["extend",{"sourceInterval":[2375,2394]},null,[],["app",{"sourceInterval":[2387,2394]},"comment",[]]],"comment_singleLine":["define",{"sourceInterval":[2412,2458]},null,[],["seq",{"sourceInterval":[2412,2443]},["terminal",{"sourceInterval":[2412,2416]},"//"],["star",{"sourceInterval":[2417,2429]},["seq",{"sourceInterval":[2418,2427]},["not",{"sourceInterval":[2418,2423]},["terminal",{"sourceInterval":[2419,2423]},"\n"]],["app",{"sourceInterval":[2424,2427]},"any",[]]]],["lookahead",{"sourceInterval":[2430,2443]},["alt",{"sourceInterval":[2432,2442]},["terminal",{"sourceInterval":[2432,2436]},"\n"],["app",{"sourceInterval":[2439,2442]},"end",[]]]]]],"comment_multiLine":["define",{"sourceInterval":[2465,2501]},null,[],["seq",{"sourceInterval":[2465,2487]},["terminal",{"sourceInterval":[2465,2469]},"/*"],["star",{"sourceInterval":[2470,2482]},["seq",{"sourceInterval":[2471,2480]},["not",{"sourceInterval":[2471,2476]},["terminal",{"sourceInterval":[2472,2476]},"*/"]],["app",{"sourceInterval":[2477,2480]},"any",[]]]],["terminal",{"sourceInterval":[2483,2487]},"*/"]]],"comment":["define",{"sourceInterval":[2398,2501]},null,[],["alt",{"sourceInterval":[2412,2501]},["app",{"sourceInterval":[2412,2443]},"comment_singleLine",[]],["app",{"sourceInterval":[2465,2487]},"comment_multiLine",[]]]],"tokens":["define",{"sourceInterval":[2505,2520]},null,[],["star",{"sourceInterval":[2514,2520]},["app",{"sourceInterval":[2514,2519]},"token",[]]]],"token":["define",{"sourceInterval":[2524,2600]},null,[],["alt",{"sourceInterval":[2532,2600]},["app",{"sourceInterval":[2532,2540]},"caseName",[]],["app",{"sourceInterval":[2543,2550]},"comment",[]],["app",{"sourceInterval":[2553,2558]},"ident",[]],["app",{"sourceInterval":[2561,2569]},"operator",[]],["app",{"sourceInterval":[2572,2583]},"punctuation",[]],["app",{"sourceInterval":[2586,2594]},"terminal",[]],["app",{"sourceInterval":[2597,2600]},"any",[]]]],"operator":["define",{"sourceInterval":[2604,2669]},null,[],["alt",{"sourceInterval":[2615,2669]},["terminal",{"sourceInterval":[2615,2619]},"<:"],["terminal",{"sourceInterval":[2622,2625]},"="],["terminal",{"sourceInterval":[2628,2632]},":="],["terminal",{"sourceInterval":[2635,2639]},"+="],["terminal",{"sourceInterval":[2642,2645]},"*"],["terminal",{"sourceInterval":[2648,2651]},"+"],["terminal",{"sourceInterval":[2654,2657]},"?"],["terminal",{"sourceInterval":[2660,2663]},"~"],["terminal",{"sourceInterval":[2666,2669]},"&"]]],"punctuation":["define",{"sourceInterval":[2673,2709]},null,[],["alt",{"sourceInterval":[2687,2709]},["terminal",{"sourceInterval":[2687,2690]},"<"],["terminal",{"sourceInterval":[2693,2696]},">"],["terminal",{"sourceInterval":[2699,2702]},","],["terminal",{"sourceInterval":[2705,2709]},"--"]]]}]);
+export default makeRecipe(["grammar",{"source":"Ohm {\n\n  Document\n    = Includes? Grammars\n\n  Includes\n    = IncludeStatement+\n  \n  IncludeStatement\n      = include \"'\" relativeFilePath \"'\"\n\n  Grammars\n    = Grammar*\n\n  Grammar\n    = ident SuperGrammar? \"{\" Rule* \"}\"\n\n  SuperGrammar\n    = \"<:\" ident\n\n  Rule\n    = ident Formals? ruleDescr? \"=\"  RuleBody  -- define\n    | ident Formals?            \":=\" OverrideRuleBody  -- override\n    | ident Formals?            \"+=\" RuleBody  -- extend\n\n  RuleBody\n    = \"|\"? NonemptyListOf<TopLevelTerm, \"|\">\n\n  TopLevelTerm\n    = Seq caseName  -- inline\n    | Seq\n\n  OverrideRuleBody\n    = \"|\"? NonemptyListOf<OverrideTopLevelTerm, \"|\">\n\n  OverrideTopLevelTerm\n    = \"...\"  -- superSplice\n    | TopLevelTerm\n\n  Formals\n    = \"<\" ListOf<ident, \",\"> \">\"\n\n  Params\n    = \"<\" ListOf<Seq, \",\"> \">\"\n\n  Alt\n    = NonemptyListOf<Seq, \"|\">\n\n  Seq\n    = Iter*\n\n  Iter\n    = Pred \"*\"  -- star\n    | Pred \"+\"  -- plus\n    | Pred \"?\"  -- opt\n    | Pred\n\n  Pred\n    = \"~\" Lex  -- not\n    | \"&\" Lex  -- lookahead\n    | Lex\n\n  Lex\n    = \"#\" Base  -- lex\n    | Base\n\n  Base\n    = ident Params? ~(ruleDescr? \"=\" | \":=\" | \"+=\")  -- application\n    | oneCharTerminal \"..\" oneCharTerminal           -- range\n    | terminal                                       -- terminal\n    | \"(\" Alt \")\"                                    -- paren\n\n  include\n  \t= caseInsensitive<\"include\">\n    \n  relativeFilePath \n  \t= ~\"'\" (letter | digit | \"-\" | \"\\\\\" | \"/\" | \".\")+ \n\n  ruleDescr  (a rule description)\n    = \"(\" ruleDescrText \")\"\n\n  ruleDescrText\n    = (~\")\" any)*\n\n  caseName\n    = \"--\" (~\"\\n\" space)* name (~\"\\n\" space)* (\"\\n\" | &\"}\")\n\n  name  (a name)\n    = nameFirst nameRest*\n\n  nameFirst\n    = \"_\"\n    | letter\n\n  nameRest\n    = \"_\"\n    | alnum\n\n  ident  (an identifier)\n    = name\n\n  terminal\n    = \"\\\"\" terminalChar* \"\\\"\"\n\n  oneCharTerminal\n    = \"\\\"\" terminalChar \"\\\"\"\n\n  terminalChar\n    = escapeChar\n      | ~\"\\\\\" ~\"\\\"\" ~\"\\n\" \"\\u{0}\"..\"\\u{10FFFF}\"\n\n  escapeChar  (an escape sequence)\n    = \"\\\\\\\\\"                                     -- backslash\n    | \"\\\\\\\"\"                                     -- doubleQuote\n    | \"\\\\\\'\"                                     -- singleQuote\n    | \"\\\\b\"                                      -- backspace\n    | \"\\\\n\"                                      -- lineFeed\n    | \"\\\\r\"                                      -- carriageReturn\n    | \"\\\\t\"                                      -- tab\n    | \"\\\\u{\" hexDigit hexDigit? hexDigit?\n             hexDigit? hexDigit? hexDigit? \"}\"   -- unicodeCodePoint\n    | \"\\\\u\" hexDigit hexDigit hexDigit hexDigit  -- unicodeEscape\n    | \"\\\\x\" hexDigit hexDigit                    -- hexEscape\n\n  space\n   += comment\n\n  comment\n    = \"//\" (~\"\\n\" any)* &(\"\\n\" | end)  -- singleLine\n    | \"/*\" (~\"*/\" any)* \"*/\"  -- multiLine\n\n  tokens = token*\n\n  token = caseName | comment | ident | operator | punctuation | terminal | any\n\n  operator = \"<:\" | \"=\" | \":=\" | \"+=\" | \"*\" | \"+\" | \"?\" | \"~\" | \"&\"\n\n  punctuation = \"<\" | \">\" | \",\" | 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diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 09cfcbdf..57418932 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -1,10 +1,16 @@
 Ohm {
 
-  Grammars
-    =  (IncludeStatement+)? Grammar*
+  Document
+    = Includes? Grammars
 
+  Includes
+    = IncludeStatement+
+  
   IncludeStatement
-    = include "'" relativeFilePath "'"
+      = include "'" relativeFilePath "'"
+
+  Grammars
+    = Grammar*
 
   Grammar
     = ident SuperGrammar? "{" Rule* "}"

From 3000e6368b558546cf1b7c4314190bee1ac7dce8 Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Wed, 16 Aug 2023 14:15:41 +0000
Subject: [PATCH 11/20] Matched naming of Grammars for Includes

---
 packages/ohm-js/src/ohm-grammar.ohm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 57418932..5226ce05 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -4,9 +4,9 @@ Ohm {
     = Includes? Grammars
 
   Includes
-    = IncludeStatement+
+    = Include+
   
-  IncludeStatement
+  Include
       = include "'" relativeFilePath "'"
 
   Grammars

From 0eda4072bbf5d387d251ee164cdb4a83ff14ed4e Mon Sep 17 00:00:00 2001
From: Liam Riddell <web@liamriddell.co.uk>
Date: Wed, 16 Aug 2023 19:20:47 +0100
Subject: [PATCH 12/20] Remove case insensitive

---
 packages/ohm-js/src/ohm-grammar.ohm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 09cfcbdf..a3a5e0fe 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -65,7 +65,7 @@ Ohm {
     | "(" Alt ")"                                    -- paren
 
   include
-  	= caseInsensitive<"include">
+  	= "include"
     
   relativeFilePath 
   	= ~"'" (letter | digit | "-" | "\\" | "/" | ".")+ 

From 7c293f7537a735ab9685823860604aa112bd9f97 Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Wed, 16 Aug 2023 18:20:55 +0000
Subject: [PATCH 13/20] Removed case insensitive

---
 packages/ohm-js/src/ohm-grammar.ohm | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 5226ce05..81492368 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -1,10 +1,10 @@
 Ohm {
 
   Document
-    = Includes? Grammars
+    = Includes Grammars
 
   Includes
-    = Include+
+    = Include*
   
   Include
       = include "'" relativeFilePath "'"
@@ -71,7 +71,7 @@ Ohm {
     | "(" Alt ")"                                    -- paren
 
   include
-  	= caseInsensitive<"include">
+  	= "include"
     
   relativeFilePath 
   	= ~"'" (letter | digit | "-" | "\\" | "/" | ".")+ 

From 4751dfccebdba5b8005a21cbcd69e118f644a0bc Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Wed, 16 Aug 2023 18:22:47 +0000
Subject: [PATCH 14/20] Added document to the examples unit tests

---
 packages/ohm-js/extras/extractExamples.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/packages/ohm-js/extras/extractExamples.js b/packages/ohm-js/extras/extractExamples.js
index 1e0df72b..8aba4fc9 100644
--- a/packages/ohm-js/extras/extractExamples.js
+++ b/packages/ohm-js/extras/extractExamples.js
@@ -73,6 +73,14 @@ const semantics = grammars.OhmWithExamples.createSemantics().addOperation('hasEx
 });
 
 semantics.addOperation('examples', {
+  Document(includesIter, grammarIter)
+  {
+    includesIter.examples();    
+    return grammarIter.examples();
+  },
+  Includes(includesIter) {
+    return includesIter.children.flatMap(c => c.examples());
+  },
   Grammars(grammarIter) {
     return grammarIter.children.flatMap(c => c.examples());
   },

From 4f2b480ae5de9a0fb2082bea35fdb83e2858b6c9 Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Thu, 17 Aug 2023 11:01:40 +0000
Subject: [PATCH 15/20] WIP Commit

---
 packages/ohm-js/extras/extractExamples.js |  3 +
 packages/ohm-js/src/buildGrammar.js       | 68 ++++++++++++++++++++++-
 packages/ohm-js/src/main.js               | 26 ++++++---
 packages/ohm-js/src/util.js               | 14 +++++
 packages/ohm-js/test/test-ohm-syntax.js   | 36 +++++++++++-
 5 files changed, 136 insertions(+), 11 deletions(-)

diff --git a/packages/ohm-js/extras/extractExamples.js b/packages/ohm-js/extras/extractExamples.js
index 8aba4fc9..f6aa6528 100644
--- a/packages/ohm-js/extras/extractExamples.js
+++ b/packages/ohm-js/extras/extractExamples.js
@@ -81,6 +81,9 @@ semantics.addOperation('examples', {
   Includes(includesIter) {
     return includesIter.children.flatMap(c => c.examples());
   },
+  Include(_, _la, relativePathNode, _ra) {
+    return null;
+  },
   Grammars(grammarIter) {
     return grammarIter.children.flatMap(c => c.examples());
   },
diff --git a/packages/ohm-js/src/buildGrammar.js b/packages/ohm-js/src/buildGrammar.js
index f63ad649..15b2e1d0 100644
--- a/packages/ohm-js/src/buildGrammar.js
+++ b/packages/ohm-js/src/buildGrammar.js
@@ -4,6 +4,7 @@ import * as common from './common.js';
 import * as errors from './errors.js';
 import {Grammar} from './Grammar.js';
 import * as pexprs from './pexprs.js';
+import { validateOption } from './util.js';
 
 const superSplicePlaceholder = Object.create(pexprs.PExpr.prototype);
 
@@ -19,16 +20,79 @@ function namespaceHas(ns, name) {
 // `tree`, which is the concrete syntax tree of a user-written grammar.
 // The grammar will be assigned into `namespace` under the name of the grammar
 // as specified in the source.
-export function buildGrammar(match, namespace, optOhmGrammarForTesting) {
+export function buildGrammar(match, namespace, options, optOhmGrammarForTesting) {
   const builder = new Builder();
   let decl;
   let currentRuleName;
   let currentRuleFormals;
   let overriding = false;
   const metaGrammar = optOhmGrammarForTesting || ohmGrammar;
+  
+  const fetchGrammarInternal = (path) => {
+    if (!validateOption(options, 'fetchGrammar', 'function'))
+    {
+      throw new Error("Missing option 'fetchGrammar' of type `function` when trying to include.");
+    }
+
+    const grammarContent = options.fetchGrammar(path);
+
+    if (typeof grammarContent !== "string")
+    {
+      throw new Error(`Expected string from 'fetchGrammar' function, but got ${typeof(grammarContent)}`);
+    }
+
+    return grammarContent.trim();
+  }
+
+  const rematchInput = (includes) => {
+    let modifiedGrammarSource = match.input;
+
+    for (let i = 0; i < includes.length; i++) {
+      const [sourceString, fileContent] = includes[i];
+      
+      // Always substitute the include even with a nothing to prevent infinite loop.
+      modifiedGrammarSource = modifiedGrammarSource.replace(sourceString, fileContent);
+    }
+
+    const newMatch = ohmGrammar.match(modifiedGrammarSource);
+
+    if (newMatch.failed()) {
+      throw errors.grammarSyntaxError(newMatch);
+    }
+
+    helpers(newMatch).visit()
+  }
 
   // A visitor that produces a Grammar instance from the CST.
   const helpers = metaGrammar.createSemantics().addOperation('visit', {
+    Document(includesNode, grammarsNode)
+    {
+      const resolvedIncludes = includesNode.visit();
+
+      // We need to rebuild the grammar match with the resolved includes substituted.
+      // Note: It's important we prevent any deeper visits in this tree as it's now pointless.
+      if (resolvedIncludes.length > 0) {
+        rematchInput(resolvedIncludes);
+        return;
+      }
+      
+      return grammarsNode.visit();
+    },
+    Includes(includesIter) {
+      const resolvedIncludes = [];
+
+      includesIter.children.flatMap(c => {
+        resolvedIncludes.push(c.visit());
+      })
+
+      return resolvedIncludes;
+    },
+    Include(_, _la, relativePathNode, _ra) {
+      return [
+        this.sourceString, 
+        fetchGrammarInternal(relativePathNode.sourceString)
+      ];
+    },
     Grammars(grammarIter) {
       return grammarIter.children.map(c => c.visit());
     },
@@ -45,7 +109,6 @@ export function buildGrammar(match, namespace, optOhmGrammarForTesting) {
       namespace[grammarName] = g;
       return g;
     },
-
     SuperGrammar(_, n) {
       const superGrammarName = n.visit();
       if (superGrammarName === 'null') {
@@ -234,5 +297,6 @@ export function buildGrammar(match, namespace, optOhmGrammarForTesting) {
       return this.sourceString;
     },
   });
+
   return helpers(match).visit();
 }
diff --git a/packages/ohm-js/src/main.js b/packages/ohm-js/src/main.js
index 2fc8dffa..4dbddd62 100644
--- a/packages/ohm-js/src/main.js
+++ b/packages/ohm-js/src/main.js
@@ -11,21 +11,27 @@ import * as util from './util.js';
 import './semanticsDeferredInit.js'; // TODO: Clean this up.
 Grammar.initApplicationParser(ohmGrammar, buildGrammar);
 
+const DEFAULT_OPTIONS = {
+  fetchGrammar: undefined
+};
+
 const isBuffer = obj =>
   !!obj.constructor &&
   typeof obj.constructor.isBuffer === 'function' &&
   obj.constructor.isBuffer(obj);
 
-function compileAndLoad(source, namespace) {
-  const m = ohmGrammar.match(source, 'Grammars');
+function compileAndLoad(source, namespace, options) {
+  const m = ohmGrammar.match(source);
+
   if (m.failed()) {
     throw errors.grammarSyntaxError(m);
   }
-  return buildGrammar(m, namespace);
+
+  return buildGrammar(m, namespace, options);
 }
 
-export function grammar(source, optNamespace) {
-  const ns = grammars(source, optNamespace);
+export function grammar(source, optNamespace, options = {}) {
+  const ns = grammars(source, optNamespace, options);
 
   // Ensure that the source contained no more than one grammar definition.
   const grammarNames = Object.keys(ns);
@@ -42,8 +48,10 @@ export function grammar(source, optNamespace) {
   return ns[grammarNames[0]]; // Return the one and only grammar.
 }
 
-export function grammars(source, optNamespace) {
+export function grammars(source, optNamespace, options = {}) {
+  
   const ns = Object.create(optNamespace || {});
+
   if (typeof source !== 'string') {
     // For convenience, detect Node.js Buffer objects and automatically call toString().
     if (isBuffer(source)) {
@@ -54,7 +62,11 @@ export function grammars(source, optNamespace) {
       );
     }
   }
-  compileAndLoad(source, ns);
+
+  const mergedOptions = Object.assign({}, DEFAULT_OPTIONS, options);
+
+  compileAndLoad(source, ns, mergedOptions);
+
   return ns;
 }
 
diff --git a/packages/ohm-js/src/util.js b/packages/ohm-js/src/util.js
index dc0e144c..831b7881 100644
--- a/packages/ohm-js/src/util.js
+++ b/packages/ohm-js/src/util.js
@@ -171,3 +171,17 @@ export const uniqueId = (() => {
   let idCounter = 0;
   return prefix => '' + prefix + idCounter++;
 })();
+
+export function validateOption(options, optionName, expectedType) {
+  if (!options.hasOwnProperty(optionName)) {
+    return false;
+  }
+
+  const optionValue = options[optionName];
+  
+  if (typeof optionValue !== expectedType) {
+    return false;
+  }
+
+  return true;
+}
diff --git a/packages/ohm-js/test/test-ohm-syntax.js b/packages/ohm-js/test/test-ohm-syntax.js
index f76777fc..040e1350 100644
--- a/packages/ohm-js/test/test-ohm-syntax.js
+++ b/packages/ohm-js/test/test-ohm-syntax.js
@@ -1442,9 +1442,41 @@ describe('bootstrap', test => {
   });
 
   test('full bootstrap!', t => {
-    const g = buildGrammar(ns.Ohm.match(ohmGrammarSource, 'Grammar'), {}, ns.Ohm);
-    const gPrime = buildGrammar(g.match(ohmGrammarSource, 'Grammar'), {}, g);
+    const g = buildGrammar(ns.Ohm.match(ohmGrammarSource, 'Document'), {}, ns.Ohm);
+    const gPrime = buildGrammar(g.match(ohmGrammarSource, 'Document'), {}, g);
     gPrime.namespaceName = g.namespaceName; // make their namespaceName properties the same
     compareGrammars(t, g, gPrime);
   });
 });
+
+test('include', t => {
+  const g = ohm.grammar(`
+    include 'test.ohm'
+  `, {}, {
+    fetchGrammar: (path) => `G { X = "G" }`
+  });
+  t.is(g.succeeded(), true);
+});
+
+test('multiple include', t => {
+  const g = ohm.grammars(`
+    include 'file-a.ohm'
+    include 'file-b.ohm'
+  `, {}, {
+    fetchGrammar: (path) => {
+      switch (path) {
+        case "file-a.ohm":
+          return `FileA { A = "A" }`;
+
+        case "file-b.ohm":
+          return `FileB { B = "B" }`;
+
+        default:
+          return "";
+      }
+    }
+  });
+
+  // IMPLEMENT UNIT TEST For FileA, and FileB
+  // t.is(g.FileA.sourceString., true);
+});
\ No newline at end of file

From 87732d4ffa38856bb66bb8c4860218481f02a1a2 Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Fri, 18 Aug 2023 21:01:41 +0000
Subject: [PATCH 16/20] Added unit tests

---
 packages/ohm-js/test/test-ohm-syntax.js | 66 ++++++++++++++++---------
 1 file changed, 42 insertions(+), 24 deletions(-)

diff --git a/packages/ohm-js/test/test-ohm-syntax.js b/packages/ohm-js/test/test-ohm-syntax.js
index 040e1350..e7a88792 100644
--- a/packages/ohm-js/test/test-ohm-syntax.js
+++ b/packages/ohm-js/test/test-ohm-syntax.js
@@ -1382,21 +1382,21 @@ describe('bootstrap', test => {
   const ns = ohm.grammars(ohmGrammarSource);
 
   test('it can recognize arithmetic grammar', t => {
-    assertSucceeds(t, ns.Ohm.match(arithmeticGrammarSource, 'Grammar'));
+    assertSucceeds(t, ns.Ohm.match(arithmeticGrammarSource));
   });
 
   test('it can recognize itself', t => {
-    assertSucceeds(t, ns.Ohm.match(ohmGrammarSource, 'Grammar'));
+    assertSucceeds(t, ns.Ohm.match(ohmGrammarSource));
   });
 
   test('it can produce a grammar that works', t => {
-    const g = buildGrammar(ns.Ohm.match(ohmGrammarSource, 'Grammar'), {}, ns.Ohm);
+    const g = buildGrammar(ns.Ohm.match(ohmGrammarSource), ns.Ohm, {});
     assertSucceeds(
         t,
-        g.match(ohmGrammarSource, 'Grammar'),
+        g.match(ohmGrammarSource),
         'Ohm grammar can recognize itself',
     );
-    const Arithmetic = buildGrammar(g.match(arithmeticGrammarSource, 'Grammar'), {}, g);
+    const Arithmetic = buildGrammar(g.match(arithmeticGrammarSource), {}, {}, g);
     const s = Arithmetic.createSemantics().addAttribute('v', {
       exp(expr) {
         return expr.v;
@@ -1449,34 +1449,52 @@ describe('bootstrap', test => {
   });
 });
 
-test('include', t => {
-  const g = ohm.grammar(`
+describe('include', test => {
+  test('include', t => {
+    const g = ohm.grammar(`
     include 'test.ohm'
   `, {}, {
-    fetchGrammar: (path) => `G { X = "G" }`
+      fetchGrammar: (path) => `G { X = "G" }`
+    });
+
+    assertSucceeds(t, g.match('G'));
   });
-  t.is(g.succeeded(), true);
-});
 
-test('multiple include', t => {
-  const g = ohm.grammars(`
+  test('multiple', t => {
+    const grammars = ohm.grammars(`
     include 'file-a.ohm'
     include 'file-b.ohm'
   `, {}, {
-    fetchGrammar: (path) => {
-      switch (path) {
-        case "file-a.ohm":
-          return `FileA { A = "A" }`;
+      fetchGrammar: (path) => {
+        switch (path) {
+          case "file-a.ohm":
+            return 'FileA { A = "A" }';
+
+          case "file-b.ohm":
+            return 'FileB { B = "B" }';
+        
+          default:
+            return "";
+        }
+      }
+    });
 
-        case "file-b.ohm":
-          return `FileB { B = "B" }`;
+    assertSucceeds(t, grammars.FileA.match('A'));
+    assertSucceeds(t, grammars.FileB.match('B'));
+  });
 
-        default:
-          return "";
-      }
+  test('supergrammar', t => {
+    const grammar = ohm.grammars(`
+    include 'supergrammar.ohm'
+
+    ChildGrammar <: SuperGrammar {
+      S += "C"
     }
-  });
+  `, {}, {
+      fetchGrammar: (path) => 'SuperGrammar { S = "S" }'
+    });
 
-  // IMPLEMENT UNIT TEST For FileA, and FileB
-  // t.is(g.FileA.sourceString., true);
+    assertSucceeds(t, grammar.ChildGrammar.match('C'));
+    assertSucceeds(t, grammar.ChildGrammar.match('S'));
+  });
 });
\ No newline at end of file

From 1e1939869b606a210144d5f6ec473cf4c2401442 Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Fri, 18 Aug 2023 22:10:47 +0000
Subject: [PATCH 17/20] Grammar

---
 packages/ohm-js/dist/ohm-grammar.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/ohm-js/dist/ohm-grammar.js b/packages/ohm-js/dist/ohm-grammar.js
index cde32880..30ca7022 100644
--- a/packages/ohm-js/dist/ohm-grammar.js
+++ b/packages/ohm-js/dist/ohm-grammar.js
@@ -1,2 +1,2 @@
 import {makeRecipe} from '../src/main-kernel.js';
-export default makeRecipe(["grammar",{"source":"Ohm {\n\n  Document\n    = Includes? Grammars\n\n  Includes\n    = IncludeStatement+\n  \n  IncludeStatement\n      = include \"'\" relativeFilePath \"'\"\n\n  Grammars\n    = Grammar*\n\n  Grammar\n    = ident SuperGrammar? \"{\" Rule* \"}\"\n\n  SuperGrammar\n    = \"<:\" ident\n\n  Rule\n    = ident Formals? ruleDescr? \"=\"  RuleBody  -- define\n    | ident Formals?            \":=\" OverrideRuleBody  -- override\n    | ident Formals?            \"+=\" RuleBody  -- extend\n\n  RuleBody\n    = \"|\"? NonemptyListOf<TopLevelTerm, \"|\">\n\n  TopLevelTerm\n    = Seq caseName  -- inline\n    | Seq\n\n  OverrideRuleBody\n    = \"|\"? NonemptyListOf<OverrideTopLevelTerm, \"|\">\n\n  OverrideTopLevelTerm\n    = \"...\"  -- superSplice\n    | TopLevelTerm\n\n  Formals\n    = \"<\" ListOf<ident, \",\"> \">\"\n\n  Params\n    = \"<\" ListOf<Seq, \",\"> \">\"\n\n  Alt\n    = NonemptyListOf<Seq, \"|\">\n\n  Seq\n    = Iter*\n\n  Iter\n    = Pred \"*\"  -- star\n    | Pred \"+\"  -- plus\n    | Pred \"?\"  -- opt\n    | Pred\n\n  Pred\n    = \"~\" Lex  -- not\n    | \"&\" Lex  -- lookahead\n    | Lex\n\n  Lex\n    = \"#\" Base  -- lex\n    | Base\n\n  Base\n    = ident Params? ~(ruleDescr? \"=\" | \":=\" | \"+=\")  -- application\n    | oneCharTerminal \"..\" oneCharTerminal           -- range\n    | terminal                                       -- terminal\n    | \"(\" Alt \")\"                                    -- paren\n\n  include\n  \t= caseInsensitive<\"include\">\n    \n  relativeFilePath \n  \t= ~\"'\" (letter | digit | \"-\" | \"\\\\\" | \"/\" | \".\")+ \n\n  ruleDescr  (a rule description)\n    = \"(\" ruleDescrText \")\"\n\n  ruleDescrText\n    = (~\")\" any)*\n\n  caseName\n    = \"--\" (~\"\\n\" space)* name (~\"\\n\" space)* (\"\\n\" | &\"}\")\n\n  name  (a name)\n    = nameFirst nameRest*\n\n  nameFirst\n    = \"_\"\n    | letter\n\n  nameRest\n    = \"_\"\n    | alnum\n\n  ident  (an identifier)\n    = name\n\n  terminal\n    = \"\\\"\" terminalChar* \"\\\"\"\n\n  oneCharTerminal\n    = \"\\\"\" terminalChar \"\\\"\"\n\n  terminalChar\n    = escapeChar\n      | ~\"\\\\\" ~\"\\\"\" ~\"\\n\" \"\\u{0}\"..\"\\u{10FFFF}\"\n\n  escapeChar  (an escape sequence)\n    = \"\\\\\\\\\"                                     -- backslash\n    | \"\\\\\\\"\"                                     -- doubleQuote\n    | \"\\\\\\'\"                                     -- singleQuote\n    | \"\\\\b\"                                      -- backspace\n    | \"\\\\n\"                                      -- lineFeed\n    | \"\\\\r\"                                      -- carriageReturn\n    | \"\\\\t\"                                      -- tab\n    | \"\\\\u{\" hexDigit hexDigit? hexDigit?\n             hexDigit? hexDigit? hexDigit? \"}\"   -- unicodeCodePoint\n    | \"\\\\u\" hexDigit hexDigit hexDigit hexDigit  -- unicodeEscape\n    | \"\\\\x\" hexDigit hexDigit                    -- hexEscape\n\n  space\n   += comment\n\n  comment\n    = \"//\" (~\"\\n\" any)* &(\"\\n\" | end)  -- singleLine\n    | \"/*\" (~\"*/\" any)* \"*/\"  -- multiLine\n\n  tokens = token*\n\n  token = caseName | comment | ident | operator | punctuation | terminal | any\n\n  operator = \"<:\" | \"=\" | \":=\" | \"+=\" | \"*\" | \"+\" | \"?\" | \"~\" | \"&\"\n\n  punctuation = \"<\" | \">\" | \",\" | \"--\"\n}"},"Ohm",null,"Document",{"Document":["define",{"sourceInterval":[9,42]},null,[],["seq",{"sourceInterval":[24,42]},["opt",{"sourceInterval":[24,33]},["app",{"sourceInterval":[24,32]},"Includes",[]]],["app",{"sourceInterval":[34,42]},"Grammars",[]]]],"Includes":["define",{"sourceInterval":[46,78]},null,[],["plus",{"sourceInterval":[61,78]},["app",{"sourceInterval":[61,77]},"IncludeStatement",[]]]],"IncludeStatement":["define",{"sourceInterval":[84,141]},null,[],["seq",{"sourceInterval":[109,141]},["app",{"sourceInterval":[109,116]},"include",[]],["terminal",{"sourceInterval":[117,120]},"'"],["app",{"sourceInterval":[121,137]},"relativeFilePath",[]],["terminal",{"sourceInterval":[138,141]},"'"]]],"Grammars":["define",{"sourceInterval":[145,168]},null,[],["star",{"sourceInterval":[160,168]},["app",{"sourceInterval":[160,167]},"Grammar",[]]]],"Grammar":["define",{"sourceInterval":[172,219]},null,[],["seq",{"sourceInterval":[186,219]},["app",{"sourceInterval":[186,191]},"ident",[]],["opt",{"sourceInterval":[192,205]},["app",{"sourceInterval":[192,204]},"SuperGrammar",[]]],["terminal",{"sourceInterval":[206,209]},"{"],["star",{"sourceInterval":[210,215]},["app",{"sourceInterval":[210,214]},"Rule",[]]],["terminal",{"sourceInterval":[216,219]},"}"]]],"SuperGrammar":["define",{"sourceInterval":[223,252]},null,[],["seq",{"sourceInterval":[242,252]},["terminal",{"sourceInterval":[242,246]},"<:"],["app",{"sourceInterval":[247,252]},"ident",[]]]],"Rule_define":["define",{"sourceInterval":[267,317]},null,[],["seq",{"sourceInterval":[267,306]},["app",{"sourceInterval":[267,272]},"ident",[]],["opt",{"sourceInterval":[273,281]},["app",{"sourceInterval":[273,280]},"Formals",[]]],["opt",{"sourceInterval":[282,292]},["app",{"sourceInterval":[282,291]},"ruleDescr",[]]],["terminal",{"sourceInterval":[293,296]},"="],["app",{"sourceInterval":[298,306]},"RuleBody",[]]]],"Rule_override":["define",{"sourceInterval":[324,384]},null,[],["seq",{"sourceInterval":[324,371]},["app",{"sourceInterval":[324,329]},"ident",[]],["opt",{"sourceInterval":[330,338]},["app",{"sourceInterval":[330,337]},"Formals",[]]],["terminal",{"sourceInterval":[350,354]},":="],["app",{"sourceInterval":[355,371]},"OverrideRuleBody",[]]]],"Rule_extend":["define",{"sourceInterval":[391,441]},null,[],["seq",{"sourceInterval":[391,430]},["app",{"sourceInterval":[391,396]},"ident",[]],["opt",{"sourceInterval":[397,405]},["app",{"sourceInterval":[397,404]},"Formals",[]]],["terminal",{"sourceInterval":[417,421]},"+="],["app",{"sourceInterval":[422,430]},"RuleBody",[]]]],"Rule":["define",{"sourceInterval":[256,441]},null,[],["alt",{"sourceInterval":[267,441]},["app",{"sourceInterval":[267,306]},"Rule_define",[]],["app",{"sourceInterval":[324,371]},"Rule_override",[]],["app",{"sourceInterval":[391,430]},"Rule_extend",[]]]],"RuleBody":["define",{"sourceInterval":[445,498]},null,[],["seq",{"sourceInterval":[460,498]},["opt",{"sourceInterval":[460,464]},["terminal",{"sourceInterval":[460,463]},"|"]],["app",{"sourceInterval":[465,498]},"NonemptyListOf",[["app",{"sourceInterval":[480,492]},"TopLevelTerm",[]],["terminal",{"sourceInterval":[494,497]},"|"]]]]],"TopLevelTerm_inline":["define",{"sourceInterval":[521,544]},null,[],["seq",{"sourceInterval":[521,533]},["app",{"sourceInterval":[521,524]},"Seq",[]],["app",{"sourceInterval":[525,533]},"caseName",[]]]],"TopLevelTerm":["define",{"sourceInterval":[502,554]},null,[],["alt",{"sourceInterval":[521,554]},["app",{"sourceInterval":[521,533]},"TopLevelTerm_inline",[]],["app",{"sourceInterval":[551,554]},"Seq",[]]]],"OverrideRuleBody":["define",{"sourceInterval":[558,627]},null,[],["seq",{"sourceInterval":[581,627]},["opt",{"sourceInterval":[581,585]},["terminal",{"sourceInterval":[581,584]},"|"]],["app",{"sourceInterval":[586,627]},"NonemptyListOf",[["app",{"sourceInterval":[601,621]},"OverrideTopLevelTerm",[]],["terminal",{"sourceInterval":[623,626]},"|"]]]]],"OverrideTopLevelTerm_superSplice":["define",{"sourceInterval":[658,679]},null,[],["terminal",{"sourceInterval":[658,663]},"..."]],"OverrideTopLevelTerm":["define",{"sourceInterval":[631,698]},null,[],["alt",{"sourceInterval":[658,698]},["app",{"sourceInterval":[658,663]},"OverrideTopLevelTerm_superSplice",[]],["app",{"sourceInterval":[686,698]},"TopLevelTerm",[]]]],"Formals":["define",{"sourceInterval":[702,742]},null,[],["seq",{"sourceInterval":[716,742]},["terminal",{"sourceInterval":[716,719]},"<"],["app",{"sourceInterval":[720,738]},"ListOf",[["app",{"sourceInterval":[727,732]},"ident",[]],["terminal",{"sourceInterval":[734,737]},","]]],["terminal",{"sourceInterval":[739,742]},">"]]],"Params":["define",{"sourceInterval":[746,783]},null,[],["seq",{"sourceInterval":[759,783]},["terminal",{"sourceInterval":[759,762]},"<"],["app",{"sourceInterval":[763,779]},"ListOf",[["app",{"sourceInterval":[770,773]},"Seq",[]],["terminal",{"sourceInterval":[775,778]},","]]],["terminal",{"sourceInterval":[780,783]},">"]]],"Alt":["define",{"sourceInterval":[787,821]},null,[],["app",{"sourceInterval":[797,821]},"NonemptyListOf",[["app",{"sourceInterval":[812,815]},"Seq",[]],["terminal",{"sourceInterval":[817,820]},"|"]]]],"Seq":["define",{"sourceInterval":[825,840]},null,[],["star",{"sourceInterval":[835,840]},["app",{"sourceInterval":[835,839]},"Iter",[]]]],"Iter_star":["define",{"sourceInterval":[855,872]},null,[],["seq",{"sourceInterval":[855,863]},["app",{"sourceInterval":[855,859]},"Pred",[]],["terminal",{"sourceInterval":[860,863]},"*"]]],"Iter_plus":["define",{"sourceInterval":[879,896]},null,[],["seq",{"sourceInterval":[879,887]},["app",{"sourceInterval":[879,883]},"Pred",[]],["terminal",{"sourceInterval":[884,887]},"+"]]],"Iter_opt":["define",{"sourceInterval":[903,919]},null,[],["seq",{"sourceInterval":[903,911]},["app",{"sourceInterval":[903,907]},"Pred",[]],["terminal",{"sourceInterval":[908,911]},"?"]]],"Iter":["define",{"sourceInterval":[844,930]},null,[],["alt",{"sourceInterval":[855,930]},["app",{"sourceInterval":[855,863]},"Iter_star",[]],["app",{"sourceInterval":[879,887]},"Iter_plus",[]],["app",{"sourceInterval":[903,911]},"Iter_opt",[]],["app",{"sourceInterval":[926,930]},"Pred",[]]]],"Pred_not":["define",{"sourceInterval":[945,960]},null,[],["seq",{"sourceInterval":[945,952]},["terminal",{"sourceInterval":[945,948]},"~"],["app",{"sourceInterval":[949,952]},"Lex",[]]]],"Pred_lookahead":["define",{"sourceInterval":[967,988]},null,[],["seq",{"sourceInterval":[967,974]},["terminal",{"sourceInterval":[967,970]},"&"],["app",{"sourceInterval":[971,974]},"Lex",[]]]],"Pred":["define",{"sourceInterval":[934,998]},null,[],["alt",{"sourceInterval":[945,998]},["app",{"sourceInterval":[945,952]},"Pred_not",[]],["app",{"sourceInterval":[967,974]},"Pred_lookahead",[]],["app",{"sourceInterval":[995,998]},"Lex",[]]]],"Lex_lex":["define",{"sourceInterval":[1012,1028]},null,[],["seq",{"sourceInterval":[1012,1020]},["terminal",{"sourceInterval":[1012,1015]},"#"],["app",{"sourceInterval":[1016,1020]},"Base",[]]]],"Lex":["define",{"sourceInterval":[1002,1039]},null,[],["alt",{"sourceInterval":[1012,1039]},["app",{"sourceInterval":[1012,1020]},"Lex_lex",[]],["app",{"sourceInterval":[1035,1039]},"Base",[]]]],"Base_application":["define",{"sourceInterval":[1054,1115]},null,[],["seq",{"sourceInterval":[1054,1099]},["app",{"sourceInterval":[1054,1059]},"ident",[]],["opt",{"sourceInterval":[1060,1067]},["app",{"sourceInterval":[1060,1066]},"Params",[]]],["not",{"sourceInterval":[1068,1099]},["alt",{"sourceInterval":[1070,1098]},["seq",{"sourceInterval":[1070,1084]},["opt",{"sourceInterval":[1070,1080]},["app",{"sourceInterval":[1070,1079]},"ruleDescr",[]]],["terminal",{"sourceInterval":[1081,1084]},"="]],["terminal",{"sourceInterval":[1087,1091]},":="],["terminal",{"sourceInterval":[1094,1098]},"+="]]]]],"Base_range":["define",{"sourceInterval":[1122,1177]},null,[],["seq",{"sourceInterval":[1122,1158]},["app",{"sourceInterval":[1122,1137]},"oneCharTerminal",[]],["terminal",{"sourceInterval":[1138,1142]},".."],["app",{"sourceInterval":[1143,1158]},"oneCharTerminal",[]]]],"Base_terminal":["define",{"sourceInterval":[1184,1242]},null,[],["app",{"sourceInterval":[1184,1192]},"terminal",[]]],"Base_paren":["define",{"sourceInterval":[1249,1304]},null,[],["seq",{"sourceInterval":[1249,1260]},["terminal",{"sourceInterval":[1249,1252]},"("],["app",{"sourceInterval":[1253,1256]},"Alt",[]],["terminal",{"sourceInterval":[1257,1260]},")"]]],"Base":["define",{"sourceInterval":[1043,1304]},null,[],["alt",{"sourceInterval":[1054,1304]},["app",{"sourceInterval":[1054,1099]},"Base_application",[]],["app",{"sourceInterval":[1122,1158]},"Base_range",[]],["app",{"sourceInterval":[1184,1192]},"Base_terminal",[]],["app",{"sourceInterval":[1249,1260]},"Base_paren",[]]]],"include":["define",{"sourceInterval":[1308,1347]},null,[],["app",{"sourceInterval":[1321,1347]},"caseInsensitive",[["terminal",{"sourceInterval":[1337,1346]},"include"]]]],"relativeFilePath":["define",{"sourceInterval":[1355,1425]},null,[],["seq",{"sourceInterval":[1378,1425]},["not",{"sourceInterval":[1378,1382]},["terminal",{"sourceInterval":[1379,1382]},"'"]],["plus",{"sourceInterval":[1383,1425]},["alt",{"sourceInterval":[1384,1423]},["app",{"sourceInterval":[1384,1390]},"letter",[]],["app",{"sourceInterval":[1393,1398]},"digit",[]],["terminal",{"sourceInterval":[1401,1404]},"-"],["terminal",{"sourceInterval":[1407,1411]},"\\"],["terminal",{"sourceInterval":[1414,1417]},"/"],["terminal",{"sourceInterval":[1420,1423]},"."]]]]],"ruleDescr":["define",{"sourceInterval":[1430,1489]},"a rule description",[],["seq",{"sourceInterval":[1468,1489]},["terminal",{"sourceInterval":[1468,1471]},"("],["app",{"sourceInterval":[1472,1485]},"ruleDescrText",[]],["terminal",{"sourceInterval":[1486,1489]},")"]]],"ruleDescrText":["define",{"sourceInterval":[1493,1524]},null,[],["star",{"sourceInterval":[1513,1524]},["seq",{"sourceInterval":[1514,1522]},["not",{"sourceInterval":[1514,1518]},["terminal",{"sourceInterval":[1515,1518]},")"]],["app",{"sourceInterval":[1519,1522]},"any",[]]]]],"caseName":["define",{"sourceInterval":[1528,1596]},null,[],["seq",{"sourceInterval":[1543,1596]},["terminal",{"sourceInterval":[1543,1547]},"--"],["star",{"sourceInterval":[1548,1562]},["seq",{"sourceInterval":[1549,1560]},["not",{"sourceInterval":[1549,1554]},["terminal",{"sourceInterval":[1550,1554]},"\n"]],["app",{"sourceInterval":[1555,1560]},"space",[]]]],["app",{"sourceInterval":[1563,1567]},"name",[]],["star",{"sourceInterval":[1568,1582]},["seq",{"sourceInterval":[1569,1580]},["not",{"sourceInterval":[1569,1574]},["terminal",{"sourceInterval":[1570,1574]},"\n"]],["app",{"sourceInterval":[1575,1580]},"space",[]]]],["alt",{"sourceInterval":[1584,1595]},["terminal",{"sourceInterval":[1584,1588]},"\n"],["lookahead",{"sourceInterval":[1591,1595]},["terminal",{"sourceInterval":[1592,1595]},"}"]]]]],"name":["define",{"sourceInterval":[1600,1640]},"a name",[],["seq",{"sourceInterval":[1621,1640]},["app",{"sourceInterval":[1621,1630]},"nameFirst",[]],["star",{"sourceInterval":[1631,1640]},["app",{"sourceInterval":[1631,1639]},"nameRest",[]]]]],"nameFirst":["define",{"sourceInterval":[1644,1676]},null,[],["alt",{"sourceInterval":[1660,1676]},["terminal",{"sourceInterval":[1660,1663]},"_"],["app",{"sourceInterval":[1670,1676]},"letter",[]]]],"nameRest":["define",{"sourceInterval":[1680,1710]},null,[],["alt",{"sourceInterval":[1695,1710]},["terminal",{"sourceInterval":[1695,1698]},"_"],["app",{"sourceInterval":[1705,1710]},"alnum",[]]]],"ident":["define",{"sourceInterval":[1714,1747]},"an identifier",[],["app",{"sourceInterval":[1743,1747]},"name",[]]],"terminal":["define",{"sourceInterval":[1751,1789]},null,[],["seq",{"sourceInterval":[1766,1789]},["terminal",{"sourceInterval":[1766,1770]},"\""],["star",{"sourceInterval":[1771,1784]},["app",{"sourceInterval":[1771,1783]},"terminalChar",[]]],["terminal",{"sourceInterval":[1785,1789]},"\""]]],"oneCharTerminal":["define",{"sourceInterval":[1793,1837]},null,[],["seq",{"sourceInterval":[1815,1837]},["terminal",{"sourceInterval":[1815,1819]},"\""],["app",{"sourceInterval":[1820,1832]},"terminalChar",[]],["terminal",{"sourceInterval":[1833,1837]},"\""]]],"terminalChar":["define",{"sourceInterval":[1841,1918]},null,[],["alt",{"sourceInterval":[1860,1918]},["app",{"sourceInterval":[1860,1870]},"escapeChar",[]],["seq",{"sourceInterval":[1879,1918]},["not",{"sourceInterval":[1879,1884]},["terminal",{"sourceInterval":[1880,1884]},"\\"]],["not",{"sourceInterval":[1885,1890]},["terminal",{"sourceInterval":[1886,1890]},"\""]],["not",{"sourceInterval":[1891,1896]},["terminal",{"sourceInterval":[1892,1896]},"\n"]],["range",{"sourceInterval":[1897,1918]},"\u0000","􏿿"]]]],"escapeChar_backslash":["define",{"sourceInterval":[1961,2016]},null,[],["terminal",{"sourceInterval":[1961,1967]},"\\\\"]],"escapeChar_doubleQuote":["define",{"sourceInterval":[2023,2080]},null,[],["terminal",{"sourceInterval":[2023,2029]},"\\\""]],"escapeChar_singleQuote":["define",{"sourceInterval":[2087,2144]},null,[],["terminal",{"sourceInterval":[2087,2093]},"\\'"]],"escapeChar_backspace":["define",{"sourceInterval":[2151,2206]},null,[],["terminal",{"sourceInterval":[2151,2156]},"\\b"]],"escapeChar_lineFeed":["define",{"sourceInterval":[2213,2267]},null,[],["terminal",{"sourceInterval":[2213,2218]},"\\n"]],"escapeChar_carriageReturn":["define",{"sourceInterval":[2274,2334]},null,[],["terminal",{"sourceInterval":[2274,2279]},"\\r"]],"escapeChar_tab":["define",{"sourceInterval":[2341,2390]},null,[],["terminal",{"sourceInterval":[2341,2346]},"\\t"]],"escapeChar_unicodeCodePoint":["define",{"sourceInterval":[2397,2501]},null,[],["seq",{"sourceInterval":[2397,2479]},["terminal",{"sourceInterval":[2397,2403]},"\\u{"],["app",{"sourceInterval":[2404,2412]},"hexDigit",[]],["opt",{"sourceInterval":[2413,2422]},["app",{"sourceInterval":[2413,2421]},"hexDigit",[]]],["opt",{"sourceInterval":[2423,2432]},["app",{"sourceInterval":[2423,2431]},"hexDigit",[]]],["opt",{"sourceInterval":[2446,2455]},["app",{"sourceInterval":[2446,2454]},"hexDigit",[]]],["opt",{"sourceInterval":[2456,2465]},["app",{"sourceInterval":[2456,2464]},"hexDigit",[]]],["opt",{"sourceInterval":[2466,2475]},["app",{"sourceInterval":[2466,2474]},"hexDigit",[]]],["terminal",{"sourceInterval":[2476,2479]},"}"]]],"escapeChar_unicodeEscape":["define",{"sourceInterval":[2508,2567]},null,[],["seq",{"sourceInterval":[2508,2549]},["terminal",{"sourceInterval":[2508,2513]},"\\u"],["app",{"sourceInterval":[2514,2522]},"hexDigit",[]],["app",{"sourceInterval":[2523,2531]},"hexDigit",[]],["app",{"sourceInterval":[2532,2540]},"hexDigit",[]],["app",{"sourceInterval":[2541,2549]},"hexDigit",[]]]],"escapeChar_hexEscape":["define",{"sourceInterval":[2574,2629]},null,[],["seq",{"sourceInterval":[2574,2597]},["terminal",{"sourceInterval":[2574,2579]},"\\x"],["app",{"sourceInterval":[2580,2588]},"hexDigit",[]],["app",{"sourceInterval":[2589,2597]},"hexDigit",[]]]],"escapeChar":["define",{"sourceInterval":[1922,2629]},"an escape sequence",[],["alt",{"sourceInterval":[1961,2629]},["app",{"sourceInterval":[1961,1967]},"escapeChar_backslash",[]],["app",{"sourceInterval":[2023,2029]},"escapeChar_doubleQuote",[]],["app",{"sourceInterval":[2087,2093]},"escapeChar_singleQuote",[]],["app",{"sourceInterval":[2151,2156]},"escapeChar_backspace",[]],["app",{"sourceInterval":[2213,2218]},"escapeChar_lineFeed",[]],["app",{"sourceInterval":[2274,2279]},"escapeChar_carriageReturn",[]],["app",{"sourceInterval":[2341,2346]},"escapeChar_tab",[]],["app",{"sourceInterval":[2397,2479]},"escapeChar_unicodeCodePoint",[]],["app",{"sourceInterval":[2508,2549]},"escapeChar_unicodeEscape",[]],["app",{"sourceInterval":[2574,2597]},"escapeChar_hexEscape",[]]]],"space":["extend",{"sourceInterval":[2633,2652]},null,[],["app",{"sourceInterval":[2645,2652]},"comment",[]]],"comment_singleLine":["define",{"sourceInterval":[2670,2716]},null,[],["seq",{"sourceInterval":[2670,2701]},["terminal",{"sourceInterval":[2670,2674]},"//"],["star",{"sourceInterval":[2675,2687]},["seq",{"sourceInterval":[2676,2685]},["not",{"sourceInterval":[2676,2681]},["terminal",{"sourceInterval":[2677,2681]},"\n"]],["app",{"sourceInterval":[2682,2685]},"any",[]]]],["lookahead",{"sourceInterval":[2688,2701]},["alt",{"sourceInterval":[2690,2700]},["terminal",{"sourceInterval":[2690,2694]},"\n"],["app",{"sourceInterval":[2697,2700]},"end",[]]]]]],"comment_multiLine":["define",{"sourceInterval":[2723,2759]},null,[],["seq",{"sourceInterval":[2723,2745]},["terminal",{"sourceInterval":[2723,2727]},"/*"],["star",{"sourceInterval":[2728,2740]},["seq",{"sourceInterval":[2729,2738]},["not",{"sourceInterval":[2729,2734]},["terminal",{"sourceInterval":[2730,2734]},"*/"]],["app",{"sourceInterval":[2735,2738]},"any",[]]]],["terminal",{"sourceInterval":[2741,2745]},"*/"]]],"comment":["define",{"sourceInterval":[2656,2759]},null,[],["alt",{"sourceInterval":[2670,2759]},["app",{"sourceInterval":[2670,2701]},"comment_singleLine",[]],["app",{"sourceInterval":[2723,2745]},"comment_multiLine",[]]]],"tokens":["define",{"sourceInterval":[2763,2778]},null,[],["star",{"sourceInterval":[2772,2778]},["app",{"sourceInterval":[2772,2777]},"token",[]]]],"token":["define",{"sourceInterval":[2782,2858]},null,[],["alt",{"sourceInterval":[2790,2858]},["app",{"sourceInterval":[2790,2798]},"caseName",[]],["app",{"sourceInterval":[2801,2808]},"comment",[]],["app",{"sourceInterval":[2811,2816]},"ident",[]],["app",{"sourceInterval":[2819,2827]},"operator",[]],["app",{"sourceInterval":[2830,2841]},"punctuation",[]],["app",{"sourceInterval":[2844,2852]},"terminal",[]],["app",{"sourceInterval":[2855,2858]},"any",[]]]],"operator":["define",{"sourceInterval":[2862,2927]},null,[],["alt",{"sourceInterval":[2873,2927]},["terminal",{"sourceInterval":[2873,2877]},"<:"],["terminal",{"sourceInterval":[2880,2883]},"="],["terminal",{"sourceInterval":[2886,2890]},":="],["terminal",{"sourceInterval":[2893,2897]},"+="],["terminal",{"sourceInterval":[2900,2903]},"*"],["terminal",{"sourceInterval":[2906,2909]},"+"],["terminal",{"sourceInterval":[2912,2915]},"?"],["terminal",{"sourceInterval":[2918,2921]},"~"],["terminal",{"sourceInterval":[2924,2927]},"&"]]],"punctuation":["define",{"sourceInterval":[2931,2967]},null,[],["alt",{"sourceInterval":[2945,2967]},["terminal",{"sourceInterval":[2945,2948]},"<"],["terminal",{"sourceInterval":[2951,2954]},">"],["terminal",{"sourceInterval":[2957,2960]},","],["terminal",{"sourceInterval":[2963,2967]},"--"]]]}]);
+export default makeRecipe(["grammar",{"source":"Ohm {\n\n  Document\n    = Includes Grammars\n\n  Includes\n    = Include*\n  \n  Include\n      = include \"'\" relativeFilePath \"'\"\n\n  Grammars\n    = Grammar*\n\n  Grammar\n    = ident SuperGrammar? \"{\" Rule* \"}\"\n\n  SuperGrammar\n    = \"<:\" ident\n\n  Rule\n    = ident Formals? ruleDescr? \"=\"  RuleBody  -- define\n    | ident Formals?            \":=\" OverrideRuleBody  -- override\n    | ident Formals?            \"+=\" RuleBody  -- extend\n\n  RuleBody\n    = \"|\"? NonemptyListOf<TopLevelTerm, \"|\">\n\n  TopLevelTerm\n    = Seq caseName  -- inline\n    | Seq\n\n  OverrideRuleBody\n    = \"|\"? NonemptyListOf<OverrideTopLevelTerm, \"|\">\n\n  OverrideTopLevelTerm\n    = \"...\"  -- superSplice\n    | TopLevelTerm\n\n  Formals\n    = \"<\" ListOf<ident, \",\"> \">\"\n\n  Params\n    = \"<\" ListOf<Seq, \",\"> \">\"\n\n  Alt\n    = NonemptyListOf<Seq, \"|\">\n\n  Seq\n    = Iter*\n\n  Iter\n    = Pred \"*\"  -- star\n    | Pred \"+\"  -- plus\n    | Pred \"?\"  -- opt\n    | Pred\n\n  Pred\n    = \"~\" Lex  -- not\n    | \"&\" Lex  -- lookahead\n    | Lex\n\n  Lex\n    = \"#\" Base  -- lex\n    | Base\n\n  Base\n    = ident Params? ~(ruleDescr? \"=\" | \":=\" | \"+=\")  -- application\n    | oneCharTerminal \"..\" oneCharTerminal           -- range\n    | terminal                                       -- terminal\n    | \"(\" Alt \")\"                                    -- paren\n\n  include\n  \t= \"include\"\n    \n  relativeFilePath \n  \t= ~\"'\" (letter | digit | \"-\" | \"\\\\\" | \"/\" | \".\")+ \n\n  ruleDescr  (a rule description)\n    = \"(\" ruleDescrText \")\"\n\n  ruleDescrText\n    = (~\")\" any)*\n\n  caseName\n    = \"--\" (~\"\\n\" space)* name (~\"\\n\" space)* (\"\\n\" | &\"}\")\n\n  name  (a name)\n    = nameFirst nameRest*\n\n  nameFirst\n    = \"_\"\n    | letter\n\n  nameRest\n    = \"_\"\n    | alnum\n\n  ident  (an identifier)\n    = name\n\n  terminal\n    = \"\\\"\" terminalChar* \"\\\"\"\n\n  oneCharTerminal\n    = \"\\\"\" terminalChar \"\\\"\"\n\n  terminalChar\n    = escapeChar\n      | ~\"\\\\\" ~\"\\\"\" ~\"\\n\" \"\\u{0}\"..\"\\u{10FFFF}\"\n\n  escapeChar  (an escape sequence)\n    = \"\\\\\\\\\"                                     -- backslash\n    | \"\\\\\\\"\"                                     -- doubleQuote\n    | \"\\\\\\'\"                                     -- singleQuote\n    | \"\\\\b\"                                      -- backspace\n    | \"\\\\n\"                                      -- lineFeed\n    | \"\\\\r\"                                      -- carriageReturn\n    | \"\\\\t\"                                      -- tab\n    | \"\\\\u{\" hexDigit hexDigit? hexDigit?\n             hexDigit? hexDigit? hexDigit? \"}\"   -- unicodeCodePoint\n    | \"\\\\u\" hexDigit hexDigit hexDigit hexDigit  -- unicodeEscape\n    | \"\\\\x\" hexDigit hexDigit                    -- hexEscape\n\n  space\n   += comment\n\n  comment\n    = \"//\" (~\"\\n\" any)* &(\"\\n\" | end)  -- singleLine\n    | \"/*\" (~\"*/\" any)* \"*/\"  -- multiLine\n\n  tokens = token*\n\n  token = caseName | comment | ident | operator | punctuation | terminal | any\n\n  operator = \"<:\" | \"=\" | \":=\" | \"+=\" | \"*\" | \"+\" | \"?\" | \"~\" | \"&\"\n\n  punctuation = \"<\" | \">\" | \",\" | \"--\"\n}"},"Ohm",null,"Document",{"Document":["define",{"sourceInterval":[9,41]},null,[],["seq",{"sourceInterval":[24,41]},["app",{"sourceInterval":[24,32]},"Includes",[]],["app",{"sourceInterval":[33,41]},"Grammars",[]]]],"Includes":["define",{"sourceInterval":[45,68]},null,[],["star",{"sourceInterval":[60,68]},["app",{"sourceInterval":[60,67]},"Include",[]]]],"Include":["define",{"sourceInterval":[74,122]},null,[],["seq",{"sourceInterval":[90,122]},["app",{"sourceInterval":[90,97]},"include",[]],["terminal",{"sourceInterval":[98,101]},"'"],["app",{"sourceInterval":[102,118]},"relativeFilePath",[]],["terminal",{"sourceInterval":[119,122]},"'"]]],"Grammars":["define",{"sourceInterval":[126,149]},null,[],["star",{"sourceInterval":[141,149]},["app",{"sourceInterval":[141,148]},"Grammar",[]]]],"Grammar":["define",{"sourceInterval":[153,200]},null,[],["seq",{"sourceInterval":[167,200]},["app",{"sourceInterval":[167,172]},"ident",[]],["opt",{"sourceInterval":[173,186]},["app",{"sourceInterval":[173,185]},"SuperGrammar",[]]],["terminal",{"sourceInterval":[187,190]},"{"],["star",{"sourceInterval":[191,196]},["app",{"sourceInterval":[191,195]},"Rule",[]]],["terminal",{"sourceInterval":[197,200]},"}"]]],"SuperGrammar":["define",{"sourceInterval":[204,233]},null,[],["seq",{"sourceInterval":[223,233]},["terminal",{"sourceInterval":[223,227]},"<:"],["app",{"sourceInterval":[228,233]},"ident",[]]]],"Rule_define":["define",{"sourceInterval":[248,298]},null,[],["seq",{"sourceInterval":[248,287]},["app",{"sourceInterval":[248,253]},"ident",[]],["opt",{"sourceInterval":[254,262]},["app",{"sourceInterval":[254,261]},"Formals",[]]],["opt",{"sourceInterval":[263,273]},["app",{"sourceInterval":[263,272]},"ruleDescr",[]]],["terminal",{"sourceInterval":[274,277]},"="],["app",{"sourceInterval":[279,287]},"RuleBody",[]]]],"Rule_override":["define",{"sourceInterval":[305,365]},null,[],["seq",{"sourceInterval":[305,352]},["app",{"sourceInterval":[305,310]},"ident",[]],["opt",{"sourceInterval":[311,319]},["app",{"sourceInterval":[311,318]},"Formals",[]]],["terminal",{"sourceInterval":[331,335]},":="],["app",{"sourceInterval":[336,352]},"OverrideRuleBody",[]]]],"Rule_extend":["define",{"sourceInterval":[372,422]},null,[],["seq",{"sourceInterval":[372,411]},["app",{"sourceInterval":[372,377]},"ident",[]],["opt",{"sourceInterval":[378,386]},["app",{"sourceInterval":[378,385]},"Formals",[]]],["terminal",{"sourceInterval":[398,402]},"+="],["app",{"sourceInterval":[403,411]},"RuleBody",[]]]],"Rule":["define",{"sourceInterval":[237,422]},null,[],["alt",{"sourceInterval":[248,422]},["app",{"sourceInterval":[248,287]},"Rule_define",[]],["app",{"sourceInterval":[305,352]},"Rule_override",[]],["app",{"sourceInterval":[372,411]},"Rule_extend",[]]]],"RuleBody":["define",{"sourceInterval":[426,479]},null,[],["seq",{"sourceInterval":[441,479]},["opt",{"sourceInterval":[441,445]},["terminal",{"sourceInterval":[441,444]},"|"]],["app",{"sourceInterval":[446,479]},"NonemptyListOf",[["app",{"sourceInterval":[461,473]},"TopLevelTerm",[]],["terminal",{"sourceInterval":[475,478]},"|"]]]]],"TopLevelTerm_inline":["define",{"sourceInterval":[502,525]},null,[],["seq",{"sourceInterval":[502,514]},["app",{"sourceInterval":[502,505]},"Seq",[]],["app",{"sourceInterval":[506,514]},"caseName",[]]]],"TopLevelTerm":["define",{"sourceInterval":[483,535]},null,[],["alt",{"sourceInterval":[502,535]},["app",{"sourceInterval":[502,514]},"TopLevelTerm_inline",[]],["app",{"sourceInterval":[532,535]},"Seq",[]]]],"OverrideRuleBody":["define",{"sourceInterval":[539,608]},null,[],["seq",{"sourceInterval":[562,608]},["opt",{"sourceInterval":[562,566]},["terminal",{"sourceInterval":[562,565]},"|"]],["app",{"sourceInterval":[567,608]},"NonemptyListOf",[["app",{"sourceInterval":[582,602]},"OverrideTopLevelTerm",[]],["terminal",{"sourceInterval":[604,607]},"|"]]]]],"OverrideTopLevelTerm_superSplice":["define",{"sourceInterval":[639,660]},null,[],["terminal",{"sourceInterval":[639,644]},"..."]],"OverrideTopLevelTerm":["define",{"sourceInterval":[612,679]},null,[],["alt",{"sourceInterval":[639,679]},["app",{"sourceInterval":[639,644]},"OverrideTopLevelTerm_superSplice",[]],["app",{"sourceInterval":[667,679]},"TopLevelTerm",[]]]],"Formals":["define",{"sourceInterval":[683,723]},null,[],["seq",{"sourceInterval":[697,723]},["terminal",{"sourceInterval":[697,700]},"<"],["app",{"sourceInterval":[701,719]},"ListOf",[["app",{"sourceInterval":[708,713]},"ident",[]],["terminal",{"sourceInterval":[715,718]},","]]],["terminal",{"sourceInterval":[720,723]},">"]]],"Params":["define",{"sourceInterval":[727,764]},null,[],["seq",{"sourceInterval":[740,764]},["terminal",{"sourceInterval":[740,743]},"<"],["app",{"sourceInterval":[744,760]},"ListOf",[["app",{"sourceInterval":[751,754]},"Seq",[]],["terminal",{"sourceInterval":[756,759]},","]]],["terminal",{"sourceInterval":[761,764]},">"]]],"Alt":["define",{"sourceInterval":[768,802]},null,[],["app",{"sourceInterval":[778,802]},"NonemptyListOf",[["app",{"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From 63ab3c6c048e3c21f50135f5375c6ae0dcd3675c Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Fri, 18 Aug 2023 22:54:37 +0000
Subject: [PATCH 18/20] Fixed tests due to `Document` changes

---
 packages/ohm-js/src/ohm-grammar.ohm     |  2 +-
 packages/ohm-js/test/test-ohm-syntax.js | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/packages/ohm-js/src/ohm-grammar.ohm b/packages/ohm-js/src/ohm-grammar.ohm
index 81492368..53a389e2 100644
--- a/packages/ohm-js/src/ohm-grammar.ohm
+++ b/packages/ohm-js/src/ohm-grammar.ohm
@@ -136,4 +136,4 @@ Ohm {
   operator = "<:" | "=" | ":=" | "+=" | "*" | "+" | "?" | "~" | "&"
 
   punctuation = "<" | ">" | "," | "--"
-}
+}
\ No newline at end of file
diff --git a/packages/ohm-js/test/test-ohm-syntax.js b/packages/ohm-js/test/test-ohm-syntax.js
index e7a88792..b78aca90 100644
--- a/packages/ohm-js/test/test-ohm-syntax.js
+++ b/packages/ohm-js/test/test-ohm-syntax.js
@@ -1390,14 +1390,14 @@ describe('bootstrap', test => {
   });
 
   test('it can produce a grammar that works', t => {
-    const g = buildGrammar(ns.Ohm.match(ohmGrammarSource), ns.Ohm, {});
+    const g = buildGrammar(ns.Ohm.match(ohmGrammarSource), {}, {}, ns.Ohm);
     assertSucceeds(
         t,
-        g.match(ohmGrammarSource),
+        g[0].match(ohmGrammarSource),
         'Ohm grammar can recognize itself',
     );
-    const Arithmetic = buildGrammar(g.match(arithmeticGrammarSource), {}, {}, g);
-    const s = Arithmetic.createSemantics().addAttribute('v', {
+    const Arithmetic = buildGrammar(g[0].match(arithmeticGrammarSource), {}, {}, g[0]);
+    const s = Arithmetic[0].createSemantics().addAttribute('v', {
       exp(expr) {
         return expr.v;
       },
@@ -1438,12 +1438,12 @@ describe('bootstrap', test => {
         return this.sourceString;
       },
     });
-    t.is(s(Arithmetic.match('10*(2+123)-4/5')).v, 1249.2);
+    t.is(s(Arithmetic[0].match('10*(2+123)-4/5')).v, 1249.2);
   });
 
   test('full bootstrap!', t => {
-    const g = buildGrammar(ns.Ohm.match(ohmGrammarSource, 'Document'), {}, ns.Ohm);
-    const gPrime = buildGrammar(g.match(ohmGrammarSource, 'Document'), {}, g);
+    const g = buildGrammar(ns.Ohm.match(ohmGrammarSource, 'Grammar'), {}, {}, ns.Ohm);
+    const gPrime = buildGrammar(g.match(ohmGrammarSource, 'Grammar'), {}, {}, g);
     gPrime.namespaceName = g.namespaceName; // make their namespaceName properties the same
     compareGrammars(t, g, gPrime);
   });

From 293670832c17fbcadd9a7ae35b6286c14d241c0d Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Sat, 26 Aug 2023 10:15:31 +0000
Subject: [PATCH 19/20] Implemented review comments

---
 packages/ohm-js/extras/extractExamples.js | 11 +---
 packages/ohm-js/src/buildGrammar.js       | 69 ++++++++---------------
 packages/ohm-js/src/main.js               | 12 +---
 3 files changed, 26 insertions(+), 66 deletions(-)

diff --git a/packages/ohm-js/extras/extractExamples.js b/packages/ohm-js/extras/extractExamples.js
index f6aa6528..583d8d30 100644
--- a/packages/ohm-js/extras/extractExamples.js
+++ b/packages/ohm-js/extras/extractExamples.js
@@ -73,17 +73,10 @@ const semantics = grammars.OhmWithExamples.createSemantics().addOperation('hasEx
 });
 
 semantics.addOperation('examples', {
-  Document(includesIter, grammarIter)
-  {
-    includesIter.examples();    
+  Document(_, grammarIter)
+  {   
     return grammarIter.examples();
   },
-  Includes(includesIter) {
-    return includesIter.children.flatMap(c => c.examples());
-  },
-  Include(_, _la, relativePathNode, _ra) {
-    return null;
-  },
   Grammars(grammarIter) {
     return grammarIter.children.flatMap(c => c.examples());
   },
diff --git a/packages/ohm-js/src/buildGrammar.js b/packages/ohm-js/src/buildGrammar.js
index 15b2e1d0..10ac34a5 100644
--- a/packages/ohm-js/src/buildGrammar.js
+++ b/packages/ohm-js/src/buildGrammar.js
@@ -4,7 +4,7 @@ import * as common from './common.js';
 import * as errors from './errors.js';
 import {Grammar} from './Grammar.js';
 import * as pexprs from './pexprs.js';
-import { validateOption } from './util.js';
+import {validateOption} from './util.js';
 
 const superSplicePlaceholder = Object.create(pexprs.PExpr.prototype);
 
@@ -16,6 +16,17 @@ function namespaceHas(ns, name) {
   return false;
 }
 
+// Compiles and loads a grammar from source or throws syntax error.
+export function compileAndLoad(source, namespace, options) {
+  const m = ohmGrammar.match(source);
+
+  if (m.failed()) {
+    throw errors.grammarSyntaxError(m);
+  }
+
+  return buildGrammar(m, namespace, options);
+}
+
 // Returns a Grammar instance (i.e., an object with a `match` method) for
 // `tree`, which is the concrete syntax tree of a user-written grammar.
 // The grammar will be assigned into `namespace` under the name of the grammar
@@ -28,70 +39,37 @@ export function buildGrammar(match, namespace, options, optOhmGrammarForTesting)
   let overriding = false;
   const metaGrammar = optOhmGrammarForTesting || ohmGrammar;
   
-  const fetchGrammarInternal = (path) => {
-    if (!validateOption(options, 'fetchGrammar', 'function'))
-    {
+  const fetchGrammarInternal = path => {
+    if (!validateOption(options, 'fetchGrammar', 'function')) {
       throw new Error("Missing option 'fetchGrammar' of type `function` when trying to include.");
     }
 
     const grammarContent = options.fetchGrammar(path);
 
-    if (typeof grammarContent !== "string")
-    {
+    if (typeof grammarContent !== 'string') {
       throw new Error(`Expected string from 'fetchGrammar' function, but got ${typeof(grammarContent)}`);
     }
 
     return grammarContent.trim();
   }
 
-  const rematchInput = (includes) => {
-    let modifiedGrammarSource = match.input;
-
-    for (let i = 0; i < includes.length; i++) {
-      const [sourceString, fileContent] = includes[i];
-      
-      // Always substitute the include even with a nothing to prevent infinite loop.
-      modifiedGrammarSource = modifiedGrammarSource.replace(sourceString, fileContent);
-    }
-
-    const newMatch = ohmGrammar.match(modifiedGrammarSource);
-
-    if (newMatch.failed()) {
-      throw errors.grammarSyntaxError(newMatch);
-    }
-
-    helpers(newMatch).visit()
-  }
-
   // A visitor that produces a Grammar instance from the CST.
   const helpers = metaGrammar.createSemantics().addOperation('visit', {
     Document(includesNode, grammarsNode)
     {
-      const resolvedIncludes = includesNode.visit();
-
-      // We need to rebuild the grammar match with the resolved includes substituted.
-      // Note: It's important we prevent any deeper visits in this tree as it's now pointless.
-      if (resolvedIncludes.length > 0) {
-        rematchInput(resolvedIncludes);
-        return;
-      }
-      
+      includesNode.visit();
       return grammarsNode.visit();
     },
     Includes(includesIter) {
-      const resolvedIncludes = [];
-
-      includesIter.children.flatMap(c => {
-        resolvedIncludes.push(c.visit());
-      })
-
-      return resolvedIncludes;
+      includesIter.children.flatMap(c => c.visit());
     },
     Include(_, _la, relativePathNode, _ra) {
-      return [
-        this.sourceString, 
-        fetchGrammarInternal(relativePathNode.sourceString)
-      ];
+      const fileContent = fetchGrammarInternal(relativePathNode.sourceString);
+
+      if (fileContent)
+      {
+        compileAndLoad(fileContent, namespace, options);
+      }
     },
     Grammars(grammarIter) {
       return grammarIter.children.map(c => c.visit());
@@ -120,7 +98,6 @@ export function buildGrammar(match, namespace, options, optOhmGrammarForTesting)
         decl.withSuperGrammar(namespace[superGrammarName]);
       }
     },
-
     Rule_define(n, fs, d, _, b) {
       currentRuleName = n.visit();
       currentRuleFormals = fs.children.map(c => c.visit())[0] || [];
diff --git a/packages/ohm-js/src/main.js b/packages/ohm-js/src/main.js
index 4dbddd62..b67bf5ac 100644
--- a/packages/ohm-js/src/main.js
+++ b/packages/ohm-js/src/main.js
@@ -1,7 +1,6 @@
 import ohmGrammar from '../dist/ohm-grammar.js';
-import {buildGrammar} from './buildGrammar.js';
+import {buildGrammar,compileAndLoad} from './buildGrammar.js';
 import * as common from './common.js';
-import * as errors from './errors.js';
 import {Grammar} from './Grammar.js';
 import * as pexprs from './pexprs.js';
 import * as util from './util.js';
@@ -20,15 +19,6 @@ const isBuffer = obj =>
   typeof obj.constructor.isBuffer === 'function' &&
   obj.constructor.isBuffer(obj);
 
-function compileAndLoad(source, namespace, options) {
-  const m = ohmGrammar.match(source);
-
-  if (m.failed()) {
-    throw errors.grammarSyntaxError(m);
-  }
-
-  return buildGrammar(m, namespace, options);
-}
 
 export function grammar(source, optNamespace, options = {}) {
   const ns = grammars(source, optNamespace, options);

From 9073f4e9814619e9312c90f9fd32fa036b9c0cc9 Mon Sep 17 00:00:00 2001
From: Liam Riddell <3812154+LiamRiddell@users.noreply.github.com>
Date: Sat, 26 Aug 2023 10:16:35 +0000
Subject: [PATCH 20/20] Minor renaming

---
 packages/ohm-js/extras/extractExamples.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/ohm-js/extras/extractExamples.js b/packages/ohm-js/extras/extractExamples.js
index 583d8d30..3574935c 100644
--- a/packages/ohm-js/extras/extractExamples.js
+++ b/packages/ohm-js/extras/extractExamples.js
@@ -73,9 +73,9 @@ const semantics = grammars.OhmWithExamples.createSemantics().addOperation('hasEx
 });
 
 semantics.addOperation('examples', {
-  Document(_, grammarIter)
+  Document(_, grammarsNode)
   {   
-    return grammarIter.examples();
+    return grammarsNode.examples();
   },
   Grammars(grammarIter) {
     return grammarIter.children.flatMap(c => c.examples());