From 6b4ab1efd63f3a35939f7d6bec47535176140a61 Mon Sep 17 00:00:00 2001
From: Regis Thedin <registhedin@gmail.com>
Date: Wed, 9 Apr 2025 12:26:47 -0600
Subject: [PATCH] FF: allow space-separated entry by default

---
 openfast_toolbox/io/fast_input_file.py | 53 ++++++++++++++++++++------
 1 file changed, 42 insertions(+), 11 deletions(-)

diff --git a/openfast_toolbox/io/fast_input_file.py b/openfast_toolbox/io/fast_input_file.py
index 6c0984c..99446d2 100644
--- a/openfast_toolbox/io/fast_input_file.py
+++ b/openfast_toolbox/io/fast_input_file.py
@@ -1130,6 +1130,32 @@ def strIsInt(s):
 def strToBool(s):
     return s.lower() in ['true','t']
 
+def addToList(l,value):
+    if l is None:
+        l = value
+    elif isinstance(l,int):
+        if strIsInt(value):
+            l = [l, value]
+    elif isinstance(l,float):
+        if strIsFloat(value):
+            l = [l, value]
+    elif isinstance(l,str):
+        if isStr(value):
+            l = [l, value]
+    elif isinstance(l,bool):
+        if strIsBool(value):
+            l = [l, value]
+    else:
+        if   isinstance(l[0],int)   and strIsInt(value):
+                l.append(value)
+        elif isinstance(l[0],float) and strIsFloat(value):
+                l.append(value)
+        elif isinstance(l[0],str)   and isStr(value):
+                l.append(value)
+        elif isinstance(l[0],bool)  and strIsBool(value):
+                l.append(value)
+    return l
+
 def hasSpecialChars(s):
     # fast allows for parenthesis
     # For now we allow for - but that's because of BeamDyn geometry members 
@@ -1235,17 +1261,22 @@ def parseFASTInputLine(line_raw,i,allowSpaceSeparatedList=False):
             _merge_value(splits)
             s=splits[0]
 
-            if strIsInt(s):
-                d['value']=int(s)
-                if allowSpaceSeparatedList and len(splits)>1:
-                    if strIsInt(splits[1]):
-                        d['value']=splits[0]+ ' '+splits[1]
-            elif strIsFloat(s):
-                d['value']=float(s)
-            elif strIsBool(s):
-                d['value']=strToBool(s)
-            else:
-                d['value']=s
+            # The loop below assumes allowSpaceSeparatedList is true
+            allowSpaceSeparatedList = True
+
+            for s in splits:
+                if strIsInt(s):
+                    d['value'] = addToList(d['value'],int(s))
+                elif strIsFloat(s):
+                    d['value'] = addToList(d['value'],float(s))
+                elif strIsBool(s):
+                    d['value'] = addToList(d['value'],strToBool(s))
+                else:
+                    d['value'] = addToList(d['value'], s)
+                    # For strings, only the first one should be printed
+                    break
+                if not allowSpaceSeparatedList:
+                    break
             iNext=1
 
         # Extracting label (TODO, for now only second split)