From 2bba3d3de5a8cefe233f274fa2d8a2ba69799760 Mon Sep 17 00:00:00 2001
From: Ekaitz Zarraga <ekaitz@elenq.tech>
Date: Mon, 12 Aug 2024 21:50:50 +0200
Subject: Make multiline steps not finish with spaces

---
 cook/parse.scm  | 23 +++++++++++++++++------
 tests/parse.scm | 11 ++++++++---
 2 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/cook/parse.scm b/cook/parse.scm
index 57c5178..2071fdd 100644
--- a/cook/parse.scm
+++ b/cook/parse.scm
@@ -106,6 +106,9 @@ https://github.com/cooklang/spec/blob/main/EBNF.md
 (define metadata-chars  (char-set-difference text-chars (char-set #\:)))
 
 (define-grammar cook
+    (one-nl         (,(parse-map
+                         (parse-sre `(: eol (+ ,newline-chars) bol))
+                         (lambda _ '(#\space)))))
     (nl             ((: ,newline-chars)))
     (whitespace     ((=> x (+ ,whitespace-chars))
                      (list->string x)))
@@ -162,11 +165,19 @@ https://github.com/cooklang/spec/blob/main/EBNF.md
 
     (step-line      ((: (? ,whitespace)
                         (=> s (+ ,text-item))
-                        (=> n (? ,nl)))
-                       (append (concatenate s) (if n '(#\space) '()))))
-
-    (step           ((: (=> s ,step-line) (=> ns (* ,step-line)))
-                     (make-step (merge-step-strings (concatenate (append (list s) ns))))))
+                        (? ,nl))
+                       (append! (concatenate! s))))
+
+    (step           ((=> s (: ,step-line
+                              ,(parse-map
+                                 (parse-repeat
+                                   (parse-map ;; Add space where newline was
+                                     step-line (lambda x
+                                                (append '(#\space)
+                                                        (concatenate x)))))
+                                 (lambda x (concatenate!
+                                             (concatenate! x))))))
+                     (make-step (merge-step-strings (concatenate! s)))))
 
     (metadata       ((: bol ">>" (* ,whitespace)
                         (=> k ,meta-key)
@@ -181,7 +192,7 @@ https://github.com/cooklang/spec/blob/main/EBNF.md
                                            (parse-seq
                                              (parse-repeat nl)
                                              (parse-optional parse-end))))))
-                     (concatenate els))))
+                     (concatenate! els))))
 
 (define (parse-cook str)
   (let ((lis (parse-fully recipe str)))
diff --git a/tests/parse.scm b/tests/parse.scm
index 8a6c87b..e004a1b 100644
--- a/tests/parse.scm
+++ b/tests/parse.scm
@@ -17,24 +17,29 @@
 
 
 (test-group "Official"
+
   (test "testBasicDirection"
-        '(recipe (metadata ()) ((step ("Add a bit of chilli "))))
+        '(recipe (metadata ()) ((step ("Add a bit of chilli"))))
         (cook->list (parse-cook "Add a bit of chilli\n")))
+
   (test "testComments"
         '(recipe (metadata ()) ((comment " testing comments")))
         (cook->list (parse-cook "-- testing comments\n")))
+
   (test "testCommentsAfterIngredients"
         '(recipe (metadata ())
                  ((step ((ingredient "thyme" (amount 2 "sprigs"))
-                         " " (comment " testing comments") "and some text "))))
+                         " " (comment " testing comments") "and some text"))))
         (cook->list
           (parse-cook "@thyme{2%sprigs} -- testing comments\nand some text\n")))
+
   (test "testCommentsWithIngredients"
         '(recipe (metadata ())
                  ((comment " testing comments")
-                  (step ((ingredient "thyme" (amount 2 "sprigs")) " "))))
+                  (step ((ingredient "thyme" (amount 2 "sprigs"))))))
         (cook->list
           (parse-cook "-- testing comments\n@thyme{2%sprigs}\n")))
+
   ;(test "testDirectionsWithDegrees"
   ;      '()
   ;      (cook->list (parse-cook "Heat oven up to 200°C\n")))
-- 
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