Add is_triple_string utility function

src/chisels.jl

@@ -81,9 +81,6 @@ const TAG_LINE_CONT = UInt32(1) << 31
 const TAG_TRAILING_COMMA = TagType(1) << 4
 
 function add_tag(node::Node, tag::TagType)
-    if kind(node) !== K"parameters"
-        @assert is_leaf(node)
-    end
     return Node(head(node), span(node), node.kids, node.tags | tag)
 end
 
@@ -540,6 +537,11 @@ function contains_multiline_triple_string(ctx, node::Node)
     return false
 end
 
+function is_triple_string(node)
+    return kind(node) in KSet"string cmdstring" &&
+        JuliaSyntax.has_flags(node, JuliaSyntax.TRIPLE_STRING_FLAG)
+end
+
 ##########################
 # Utilities for IOBuffer #
 ##########################

src/runestone.jl

@@ -2074,6 +2074,9 @@ function indent_call(ctx::Context, node::Node)
 end
 
 
+# TODO: I feel like this function can be removed. The use in `indent_assignment` can be
+# replaced with `continue_all_newlines` but the use in `indent_op_call` might have to be
+# tweaked slightly.
 function indent_newlines_between_indices(
         ctx::Context, node::Node, open_idx::Int, close_idx::Int;
         indent_closing_token::Bool = false,
@@ -2759,7 +2762,7 @@ function insert_delete_mark_newlines(ctx::Context, node::Node)
 end
 
 function indent_multiline_strings(ctx::Context, node::Node)
-    if !(kind(node) in KSet"string cmdstring" && JuliaSyntax.has_flags(node, JuliaSyntax.TRIPLE_STRING_FLAG))
+    if !is_triple_string(node)
         return nothing
     end
     triplekind = kind(node) === K"string" ? K"\"\"\"" : K"```"