Cleaner stream-based ktxt2 conversions

projects/hollywoo/src/hollywoo/FountainConversions.kiss

@@ -1,3 +1,5 @@
+// KTxt2 Conversions for Fountain files
+
 (var wryly
     (R.namedGroup "wryly"
         (R.optional
@@ -6,19 +8,19 @@
                 (R.repeat R.anyChar 1)
                 (R.escape ")\n")))))
 
-// KTxt2 Conversions for Fountain files
 (registerConversion
-    (new ktxt2.RegexConversion "On Phone Speech" "fountain" "hollywoo"
-        (R.group
-            R.start
-            (R.namedGroup "name" (R.repeat R.capitalLetter 1))
-            (R.escape " (O.P.)\n")
-            wryly
-            (R.namedGroup "line" (R.repeat R.anyChar 1))
-            (R.namedGroup "pBreak" (R.repeat (R.escape "\n") 1))
-            R.end)
-        #####"ONPHONESPEECH \"$(group "name")\" \"$(let [w (group "wryly")] (if w (substr w 1 -3) ""))\" ##\"$(.trim (group "line"))\"##$(group "pBreak")"#####
-        "m"))
+    (new ktxt2.StreamConversion "On Phone Speech" "fountain" "hollywoo"
+        ->stream ?(whenLet [(Some name) (stream.takeUntilAndDrop " (O.P.)")] true)
+        ->stream
+            (let [name (whenLet [(Some name) (stream.takeUntilAndDrop "(O.P.)")] name)
+                    &mut output ""]
+                (stream.takeLine)
+                (loop
+                    (let [wryly (ifLet [(Some w) (stream.takeBetween "(" ")")] w "")
+                            line (ifLet [(Some l) (stream.takeLine)] (l.trim) (break))]
+                        (when line
+                            (+= output "ONPHONESPEECH \"${name}\" \"${wryly}\" ##\"${line}\"##\n"))))
+                output)))
 
 (registerConversion
     (new ktxt2.RegexConversion "Speech" "fountain" "hollywoo"
@@ -31,4 +33,4 @@
             (R.namedGroup "pBreak" (R.repeat (R.escape "\n") 1))
             R.end)
         #####"NORMALSPEECH \"$(group "name")\" \"$(let [w (group "wryly")] (if w (substr w 1 -3) ""))\" ##\"$(.trim (group "line"))\"##$(group "pBreak")"#####
-        "m"))
+        "m"))