tagomoris/fluent-plugin-forest — pull request #7 by harukasan (2013-09-02 06:23:35+00:00)
Title: add replace_tag_separator option

Hi.
I want a placeholder replaced with underscored tag (replaced '.' with '_').

Some storages (ex. mysql) are not support the tag separated by '.' .
So some configure can not use forest like below:
```

type mysql
table foo_example_com

type mysql
table bar_example_com

```

I have two idea for this issue.

1. make configure attribute named `replace_tag_separator`
2. make a new placeholder like `${tag.replace_separator}`

I implemented the first idea in this PR.
This patch allows to write the configure like below:
```

replace_tag_separator true # replace '.' with '_'
replace_tag_separator + # replace '.' with specified separator '+'

```