Rule-based placement with regular expressions

[Alex Koolhof]

Hi folks,

Has anyone successfully created some rules with regular expressions to use with Felix's rule manager? In particular, I would like to be able replace Japanese figures automatically, which means moving the decimal point one place in the case of 億. I have used the following example in the Felix manual to successfully achieve this:

http://felix-cat.com/media/manuals/felix/placement.html#rule-based-placement

For example, 5878億 becomes 587.8 billion

However, I can't seem to get it to work when numbers contain a comma, like 5,878億. Ideally, I want the comma removed, so this too becomes 587.8 billion.

Anyone have the knowledge of regular expressions to achieve this?

I would also be interested in other useful J to E matches/replacements using regular expressions that could be imported into the rule manager if others are willing to share them?

This blog post was informative, but I still lack the knowledge of regular expressions to create my own:

http://felix-cat.com/blog/2013/07/03/455/

Thanks

Alex 

[Ryan Ginstrom]

> On Behalf Of Alex Koolhof

> For example, 5878億 becomes 587.8 billion
>
> However, I can't seem to get it to work when numbers contain a comma, like
> 5,878億. Ideally, I want the comma removed, so this too becomes 587.8 billion.

Here is a regular expression that works for "5,878億" and "5878億":

Source:
(\d),?(\d\d)(\d)億

Target:
\1\2.\3 billion

[,?] means "optionally, a comma"

> I would also be interested in other useful J to E matches/replacements using
> regular expressions that could be imported into the rule manager if others are
> willing to share them?

I have a few that I use, but they're pretty specific to software, so I don't know how generally useful they are. If you post some patterns that you'd like to turn into rules, I'm sure I or someone else can help you out.

Regular expressions are really complicated, but they can also be useful in a lot of situations. If you've got the time to invest, the book "Mastering Regular Expressions" by Jeffrey Friedl is pretty much the bible on the subject.

Regards,
Ryan

[Alex Koolhof]

Awesome....thanks so much Ryan! Based on that rule, I'll see if I can create a few rules for figures with only two or three digits. Or perhaps I can use the "+" symbol to designate any number of digits?

Also, is there a way to have the rule match both half-width and full-width characters? The rule you provided would not match full-width.

Thanks again for your help.

Alex

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