A decent Perl one-liner for this sort of thing would be:
```sh
# increment all integers by one
perl -i.orig -ple 's/(-?\d+)/$1+1/ge' myfile.txt
```
Hope this helps.
-sam
On 6 Nov 2017, at 13:32, Fletcher Sandbeck wrote:
Some programming languages allow you to specify a function as the
replacement expression. For example you an do this in JavaScript like
this.
"1 and a 2".replace(/\d/g, function (match, capture) {
return (parseInt(match)+1);
});
Outputs: "2 and a 3"
In terms of BBEdit you would probably want to look into doing the
search/replace with AppleScript or a shell script.
[fletcher]
On Nov 6, 2017, at 10:13 AM, Ted Toal <[email protected]> wrote:
Something I've always wanted but never heard mentioned, thought I'd
throw out the idea here: replacement expressions that include math.
Suppose you have certain integers in your text that you want to ADD
ONE TO. What if you could capture a matching integer in
subexpression \1, then do something like this in the replacement:
\e(\1+1)
where \e means an expression in () follows. The expression is
evaluated as an arithmetic expression, after performing replacement
of \1. Result is inserted as the replacement text.
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