add default to extract()

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 2.5.2
+
+- Add `default` parameter to `extract()` to return default when code not found
+
 ## 2.5.1
 
 - Add support for `files` in `save()` to persist multiple files

python/hal9/code.py

@@ -1,7 +1,9 @@
 import re
 
-def extract(markdown, language):
+def extract(markdown, language, default = None):
     pattern = re.compile(rf'```{language}\s+(.*?)```', re.DOTALL)
     code_blocks = pattern.findall(markdown)
     code = '\n'.join(code_blocks)
+    if len(code) == 0:
+        return default
     return code

python/pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "hal9"
-version = "2.5.1"
+version = "2.5.2"
 description = ""
 authors = ["Javier Luraschi <[email protected]>"]
 readme = "README.md"

website/reference/code.md

@@ -10,3 +10,4 @@ Extracts all `language` code blocks from `markdown` text
 | --- | --- | --- |
 | markdown | <code>String</code> | The markdown to extract blocks from. |
 | language | <code>String</code> | The language of the code blocks. |
+| default | <code>Any</code> | The default value when code not found, defaults to `None`. |