I'm having trouble grabbing a specific piece of text.
My input is:
PMT(B1+B144+B145*1/12.0,B148+B149*1*12.0,B1)
I want to grab all the B1
's, but when I'm trying to do that I'm getting B1
, B144
, B148
, B1
. My first solution was to check the following character. So I came up with the regex B1[\\W]
. There are two problems with this: One it ends up grabbing the non word character, and two it doesn't work with "=B1".
How can I grab specific B1
s? For this example I want the first and last B1
.
Edit: I'm using the Java String function replaceAll
确保使用单词边界:
String repl = str.replaceAll("\\bB1\\b", "");
Use B1(?!\\\\d)
which means:
B1
: match B1
(?!\\\\d)
: not followed by a digit
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