```
Find and replace multi-lines using a match-case
Usage: matchpick [OPTIONS] [FILE]
Arguments:
[FILE] Read from file (otherwise from stdin)
Options:
-m, --match <MATCH_AGAINST> Match against (switch case)
-s, --start-pattern <START_PATTERN> Pattern to start matching and switch cases [default: ~>>>]
-e, --end-pattern <END_PATTERN> Pattern to end matching [default: ~<<<]
--ignore-pattern <IGNORE_PATTERN> Pattern to ignore other patterns
-o, --output <OUTPUT> Output to file (otherwise to stdout)
--print-start Print default starting pattern
--print-end Print default ending pattern
-h, --help Print help
-V, --version Print version
```
As an example, the input:
```
start
~>>>
default output
~>>> eggs
foo, foo
~>>> spam
foo? bar!
foo... baz.
~<<<
end
```
Produces with default arguments:
```
start
default output
end
```
Produces with `--match eggs`:
```
start
foo, foo
end
```
Produces with `--match spam`:
```
start
foo? bar!
foo... baz.
end
```
Produces with `--match something_else`:
```
start
default output
end
```