October 2012
346 pages
7h 40m
English
Content preview from Practical Vim
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| Tip 93 | Rearrange CSV Fields Using Submatches |
In this tip, we’ll see how submatches captured from the search pattern can be referenced in the replacement field.
Let’s say that we have a CSV file containing a list of email addresses along with first and last names:
| substitution/subscribers.csv | |
| | last name,first name,email |
| | neil,drew,drew@vimcasts.org |
| | doe,john,john@example.com |
Now suppose that we want to swap the order of the fields so that the email comes first, then the first name, and finally the last name. We could use this substitute command to do it:
| => | /\v^([^,]*),([^,]*),([^,]*)$ |
| => | :%s//\3,\2,\1 |
In the pattern, [^,] matches anything that isn’t a comma. So ([^,]*) matches zero or more consecutive non-commas and captures the result ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.