问题
I'm trying to come up with a search and replace method for capitalizing the first letter after a tag, but I've had no luck.
I'm using the regex mode of Notepad++.
回答1:
In Notepad++, enable regex mode in the Find and Replace dialog box, then find:
(?<=<p>)(.)
and replace with:
\U\1
To explain the pattern to be matched:
(?<=a)b # A positive lookbehind, i.e. match all b that immediately follow a, but
# don't match the "a" itself.
(.) # Find any character (i.e. "."), and capture it.
(?<=a)(.) # Find any character that immediately follows a, and capture it.
And the replacement:
\1 # The first captured substring in each match.
\Ux # Convert x to upper case.
\U\1 # Convert the first captured substring in each match to upper case.
Note that this attempts to convert the first character to upper case. If there might be other non-letter characters between the <p> and the letter that you want capitalised, you could the pattern:
(?<=<p>)([^A-Za-z]*)(.)
# [^x] Matches any character that is not x.
# [^A-Za-z] Matches any character that is not one of the upper case
# or lower case letters.
# x* Matches zero or more consecutive x.
# [^A-Za-z]* Matches zero or more consecutive characters that are not
# upper case or lower case letters.
and replace with
\1\U\2 # The first captured substring (any non-letter characters
# that immediately follow <p>) followed by the second captured
# substring (the first letter that appears after <p>), which
# is converted to upper case.
The pattern to be found says: "match (and capture, in capture group 1) any non-letter characters that immediately follow <p>, and then match (and capture, in capture group 2) the first character that immediately follows the non-letter characters (which must, of course, be the letter we want to ensure is upper case)". Note that because we use *, a match will also result when there are no non-letter characters following <p>, in which case capture group one will just hold an empty string.
回答2:
/<p>\s*(.){1}/
This will match a <p> tag followed by any kind of whitespace zero or more times, followed by any character 1 time and it will remember the 1 character so that you can use it later to turn it to uppercase.
来源：https://stackoverflow.com/questions/29044238/capitalizing-the-first-letter-after-a-tag