Add slugify command

fixit/cli.py

@@ -56,6 +56,8 @@ def run_palindrome(args):
 def run_reverse(args):
     print(textutils.reverse_words(args.text))
 
+def run_slugify(args):
+    print(textutils.slugify(args.text))
 COMMAND_TABLE = {
     "wc": run_wc,
     "convert": run_convert,
@@ -64,6 +66,7 @@ def run_reverse(args):
     "json": run_json,
     "palindrome": run_palindrome,
     "reverse": run_reverse,
+    "slugify": run_slugify,
 }
 
 def build_parser() -> argparse.ArgumentParser:
@@ -103,9 +106,11 @@ def build_parser() -> argparse.ArgumentParser:
 
     rw = sub.add_parser("reverse", help="reverse the words in a sentence")
     rw.add_argument("text")
-    return parser
 
+    sg = sub.add_parser("slugify", help="convert text into a URL-friendly slug")
+    sg.add_argument("text")
 
+    return parser
 def main(argv=None) -> int:
     """Run a fixit command and return its exit status.
 

fixit/textutils.py

@@ -18,3 +18,17 @@ def reverse_words(text: str) -> str:
         reverse_words("hello world") returns "world hello".
     """
     return " ".join(reversed(text.split()))
+
+
+def slugify(text: str) -> str:
+    """Convert text into a URL-friendly slug.
+
+    Example:
+        slugify("Hello World!") returns "hello-world".
+    """
+    import re
+
+    text = text.lower()
+    text = re.sub(r"[^\w\s-]", "", text)
+    text = re.sub(r"[\s_-]+", "-", text)
+    return text.strip("-")

tests/test_textutils.py

@@ -1,5 +1,5 @@
 import pytest
-from fixit.textutils import is_palindrome, reverse_words
+from fixit.textutils import is_palindrome, reverse_words, slugify
 
 
 def test_simple_palindrome():
@@ -18,3 +18,10 @@ def test_palindrome_ignores_punctuation():
 
 def test_reverse_words_extra_spaces():
     assert reverse_words("hello   world") == "world hello"
+
+def test_slugify_basic():
+    assert slugify("Hello World!") == "hello-world"
+
+
+def test_slugify_punctuation_and_spaces():
+    assert slugify("Open Source, Project!") == "open-source-project"