diff --git a/source/main.py b/source/main.py
index 7683e22..b89fffb 100644
--- a/source/main.py
+++ b/source/main.py
@@ -1,4 +1,5 @@
 import sys as _sys
+import re as _re
 import json as _json
 import yaml as _yaml
 import argparse as _argparse
@@ -22,23 +23,29 @@ def string_coin(
 	options = (
 		{
 			"character_open": "{{",
-			"character_close": "}}"
+			"character_close": "}}",
+			"ignore_whitespaces": True,
 		}
 		|
 		(options or {})
 	)
 	result = template
 	for (key, value, ) in arguments.items():
-		result = result.replace(
-			(
-				"%s%s%s"
-				% (
-					options["character_open"],
-					key,
-					options["character_close"],
-				)
-			),
-			value
+		pattern = (
+			_re.escape(options["character_open"])
+			+
+			("\s*" if options["ignore_whitespaces"] else "")
+			+
+			_re.escape(key)
+			+
+			("\s*" if options["ignore_whitespaces"] else "")
+			+
+			_re.escape(options["character_close"])
+		)
+		result = _re.sub(
+			pattern,
+			value,
+			result
 		)
 	return result
 	
@@ -154,6 +161,12 @@ def main(
 		metavar = "<character-close>",
 		help = "placeholder closing character",
 	)
+	argument_parser.add_argument(
+		"-w",
+		"--heed-whitespaces",
+		action = "store_true",
+		help = "whether whitespace characters in the template string shall be heeded, i.e. not be ignored",
+	)
 	args = argument_parser.parse_args()
 	
 	## exec
@@ -169,6 +182,7 @@ def main(
 		{
 			"character_open": args.character_open,
 			"character_close": args.character_close,
+			"ignore_whitespaces": (not args.heed_whitespaces),
 		}
 	)
 	_sys.stdout.write(content_out)