vim note, range patterns

82ded935.md

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+---
+date: 2021-03-14T14:12
+tags:
+  - vim
+---
+
+# command mode ranges based on patterns
+
+In command mode you can specify a range of lines to operate on, based on patterns,
+rather than absolute (or relative line numbers). This can be a great way
+to isolate changes without looking up the individual line numbers.
+
+```vim
+:/start/,/end/cmd<CR>
+```
+
+On a Python file, this might look like:
+
+```python
+def main():
+    foo = do_something()
+    bar = do_something_else(foo)
+    return bar
+```
+
+```vim
+:/def main/,/return/s/foo/baz/g<CR>
+```
+
+results in:
+
+```python
+def main():
+    baz = do_something()
+    bar = do_something_else(baz)
+    return bar
+```

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