From 2cdb3b48802d904fe5ed85235fcd5bb3d58be15a Mon Sep 17 00:00:00 2001
From: colin <colin@cicadas.surf>
Date: Tue, 8 Aug 2023 07:03:48 -0700
Subject: Removed dependency on trivia

---
 argot.asd    |  8 ++++----
 argot.lisp   | 35 ++++++++++++-----------------------
 package.lisp |  1 -
 3 files changed, 16 insertions(+), 28 deletions(-)

diff --git a/argot.asd b/argot.asd
index ff57f4d..e3141b8 100644
--- a/argot.asd
+++ b/argot.asd
@@ -1,12 +1,12 @@
 ;;;; argot.asd
 
 (asdf:defsystem #:argot
-  :description "Describe argot here"
-  :author "Your Name <your.name@example.com>"
-  :license  "Specify license here"
+  :description "Grammar-driven Macro Definition"
+  :author "Colin <colin@cicadas.surf>"
+  :license  "GPLv3"
   :version "0.0.1"
   :serial t
-  :depends-on (#:trivia #:alexandria)
+  :depends-on (#:alexandria)
   :components ((:file "package")
                (:file "grammars")
                (:file "docgen")
diff --git a/argot.lisp b/argot.lisp
index 1eb7fc5..f79e2ed 100644
--- a/argot.lisp
+++ b/argot.lisp
@@ -57,29 +57,18 @@ and it returns VAR in that case."
               (collect-vars (cdr pat))))))
 
 (defun parse-rule-def (ruledef)
-  (handler-case 
-      (ematch ruledef
-        ((guard (list lhs :match pattern)
-                (and (nonterminal? lhs) (pattern? pattern)))
-         (list lhs pattern (collect-vars pattern) nil nil))
-
-        ((guard (list lhs :match pattern :if check)
-                (and (nonterminal? lhs) (pattern? pattern)))
-         (list lhs pattern (collect-vars pattern) check nil))
-        
-        ((guard (list lhs :match pattern :then action)
-                (and (nonterminal? lhs) (pattern? pattern)))
-         (list lhs pattern (collect-vars pattern) nil action))
-
-        ((guard (list lhs :match pattern :then action :if check)
-                (and (nonterminal? lhs) (pattern? pattern)))
-         (list lhs pattern (collect-vars pattern) check action))
-
-        ((guard (list lhs :match pattern :if check :then action)
-                (and (nonterminal? lhs) (pattern? pattern)))
-         (list lhs pattern (collect-vars pattern) check action)))
-    (trivia::match-error ()
-      (error 'invalid-rule-def :rule ruledef))))
+  (unless (consp ruledef)
+    (error 'invalid-rule-def :rule ruledef))
+  
+  (destructuring-bind (lhs . options) ruledef
+    (let ((pattern (getf options :match))
+          (check (getf options :if))
+          (action (getf options :then))
+          (doc (getf options :doc)))
+      (unless (and (nonterminal? lhs) (pattern? pattern))
+        (error 'invalid-rule-def :rule ruledef))
+      (list lhs pattern (collect-vars pattern) check action doc))))
+
 
 (defun function-form-p (s)
   (or (functionp s)
diff --git a/package.lisp b/package.lisp
index 0bbaec6..1e3ac22 100644
--- a/package.lisp
+++ b/package.lisp
@@ -2,6 +2,5 @@
 
 (defpackage #:argot
   (:use #:cl)
-  (:import-from #:trivia #:match #:ematch #:guard)
   (:import-from #:alexandria #:if-let)
   (:export #:defgrammar #:deflanguage #:parse))
-- 
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