Regular Expressions in Notepad++ starting with text and ending with incremental number - regex

I'm trying to understand this as I'm reading tutorials and apply this to what I'm doing.
I have a file with lines of text like:
line1blahblahblahblah
line2blahblahblahblah
...
line10blahblahblahblah
I want to go in and remove the line and the number after it (which is incremented 1-1000 for each line) and replace it with new text leaving all the text after in tact.
Can someone explain how and explain the regex expression?

Search for
^line\d+
And replace with an empty string.
Explanation: The ^ matches the begining of the line, the line matches a literal character sequence, and the \d matches any digit character. The + after the \d makes it match one or more digits characters.
Your Notepad++ search panel should look like this:

Related

finding pattern between two "CERRADO}" strings using negative look-ahead

I have a text file containing lines like these:
CERRADO}165856}TICKET}DESCRIPTION}some random text here\r\n
other random text here}158277747\r\n
CERRADO}165856}TICKET}FR2CODE}more random text also here}1587269339\r\n
My ultimate goal is to concatenate those lines not beginnning with "CERRADO}" string with their preceding line. There might be an arbitrary number of lines not beginning with that string on the file. This is the end result:
CERRADO}165856}TICKET}DESCRIPTION}some random text here other random text here}158277747\r\n
CERRADO}165856}TICKET}FR2CODE}more random text also here}1587269339\r\n
My first attempt was to create a simple regex to match those lines.
CERRADO\}.+\r\n(?!CERRADO\})(.+\r\n)+
After having that regex right, to create a matching group and replace it getting rid of the \r\n patterns, here is what I have so far:
The proposed regex matches all the lines in the file and not just the wanted ones.
Any ideas would be appreciated
You may use
\R(?!CERRADO\})
and replace with a space.
The regex matches:
\R - a line break sequence that is...
(?!CERRADO\}) - not followed with CERRADO}.
Or,
^(CERRADO\}.*)\R(?!CERRADO\})
and replace with \1 . This regex matches:
^ - start of a line
(CERRADO\}.*) - Capturing group 1 (later referred to with \1 backreference from the replacement pattern): CERRADO} substring and then the rest of the line
\R - a line break sequence
(?!CERRADO\}) - not followed with CERRADO}.
To make multiple replacements with this one, you will need to hit Replace All several times.

Regular expression to replace nth occurrence of a word on every line in Textpad

I have a file with thousands of lines containing comma separated columns.
'one',2,'three','hello','xyz',5,'hello','mnr','hello','axi'
'onae',2,'tree','hello','xyz',6,'hello','mnr','hello','asd'
'onee',2,'xdsa','hello','xyz',5,'hello','mnr','hello','aew'
'owne',2,'thr','hello','xyz',3,'hello','mnr','hello','az'
'ocne',2,'tee','hello','xyz',5,'hello','mnr','hello','zse'
'owne',2,'tre','hello','xyz',2,'hello','mnr','hello','aai'
Three of the columns in each line contains value as word 'hello'.
How can I replace the 2nd occurrence of word 'hello' with number 0 in every line using regex in Textpad such that the lines become:
'one',2,'three','hello','xyz',5,0,'mnr','hello','axi'
'onae',2,'tree','hello','xyz',6,0,'mnr','hello','asd'
'onee',2,'xdsa','hello','xyz',5,0,'mnr','hello','aew'
'owne',2,'thr','hello','xyz',3,0,'mnr','hello','az'
'ocne',2,'tee','hello','xyz',5,0,'mnr','hello','zse'
'owne',2,'tre','hello','xyz',2,0,'mnr','hello','aai'
Search using this regx:
(.*?'hello'.*?),'hello',(.*)
And replace using:
$1,0,$2
Make sure DOTALL (dot matches newline) option is turned off.
RegEx Demo
I voted up anubhava's solution since that put me very close to the solution.
Find this:
^(.*?'hello'.*?),'hello',
Replace with this:
$1,0,

Notepad++ Regex Issue - Remove Number in Line Replace with HTML

I'm a regex newbie so this has been a lot of trial and error but for some reason I can only get this to work sometimes and I'm not sure why. Let me layout what I'm doing. I have a text file that looks like this:
1.Some Text Here
A paragraph of words here.
2.Some More Text Here
A paragraph of words here.
I use this code to find the lines with a number at the beginning:
^[0-9]+.([^.]*)$
Then I replace it with this:
<h2>$1</h2>\r\r
The problem I'm running into is that it usually grabs the line starting with the number but for some reason it will grab the line with the number and the paragraph below it. So instead of putting the </h2> at the end of the line it puts it at the end of the paragraph below.
I displayed all symbols to see if it had something to do with carriage/line returns but everything looks identical from line to line. The paragraph is on its own line and I see CRLF at the end of each line.
The expression [^.] (ie not a literal dot) matches newlines.
Don't match newlines in your capture:
^[0-9]+\.([^.\r\n]*)
Note that I also escaped the dot following the numbers, making it match a literal dot (a naked dot matches any character).
use \2 instead of $2, check "wrap around"tested on notepad++ 5.9.3 (UNICODE)
Not sure what version of notepad++ you're using but your version of the regex works fine for the example that you have ... i use 6.7.9.2
I can reproduce with the following text. Notice the paragraph for line 1 doesn't end in a period.
1.Some Text Here[CR][LF]
A paragraph of words here[CR][LF]
2.Some Text Here[CR][LF]
A paragraph of words here.[CR][LF]
Your regex matches any number of lines that begins with a set of digits, and doesn't end in a period. It could include more than one line. I would recommend this regex: ^[0-9]+\.([^\r\n]*)\r\n.

Add to end of line that contains a specific word and starts with x

I would like to add some custom text to the end of all lines in my document opened in Notepad++ that start with 10 and contain a specific word (for example "frog").
So far, I managed to solve the first part.
Search: ^(10)$
Replace: \1;Batteries (to add ;Batteries to the end of the line)
What I need now is to edit this regex pattern to recognize only those lines that also contain a specific word.
For example:
Before: 1050;There is this frog in the lake
After: 1050;There is this frog in the lake;Batteries
You can use the regex to match your wanted lines:
(^(10).*?(frog).*)
the .*? is a lazy quantifier to get the minimum until frog
and replace by :
$1;Battery
Hope it helps,
You should allow any characters between the number and the end of line:
^10.*frog.*
And replacement will be $0;Batteries. You do not even need a $ anchor as .* matches till the end of a line since . matches any character but a line break char.
NOTE: There is no need to wrap the whole pattern with capturing parentheses, the $0 placeholder refers to the whole match value.
More details:
^ - start of a line
10 - a literal 10 text
.* - zero or more chars other than line break chars as many as possible
frog - a literal string
.* - zero or more chars other than line break chars as many as possible
try this
find with: (^(10).*(frog).*)
replace with: $1;Battery
Use ^(10.*frog.*)$ as regex. Replace it with something like $1;Batteries

Regular Expression to search and replace in notepad ++

If i have a line of text that i want to remove from a text file in notepad and it is always formatted like this
[text]:
except that the words in the text area change. what is a regular expression i could create to remove the whole section with the search and replace function in notepad?
To delete the entire line starting with [any text]: you can use: ^[\t ]*\[.*?\]:.*?\r\n
Explanation:
^ ... start search at beginning of a line (in this case).
[\t ]* ... find 0 or more tabs or spaces.
\[ ... find the opening square bracket as literal character.
.*? ... find 0 or more characters except the new line characters carriage return and line-feed non greedy which means as less characters as possible to get a positive match, i.e. stop matching on first occurrence of following ] in the search expression.
\]: ... find the closing square bracket as literal character and a colon.
.*?\r\n ... find 0 or more characters except the new line characters and finally also the carriage return and line-feed terminating the line.
The search string ^[\t ]*\[.*?\]:.*?$ would find also the complete line, but without matching also the line termination.
The replace string is for both search strings an empty string.
If by removing the entire section, you mean remove the [text]: up to the next [otherText]:, you can try this:
\[text\]:((?!\[[^\]]*\]:).)*
Remember to set the flag for ". matches newline".
This regex basically first matches your section title. Then, it would start matching right after this title and for each character, it uses a negative lookahead to check if the string following this character looks like a section title. If it does the matching is terminated.
Note: Remember that this regex would replace all occurrences of the matched pattern. In other words, if you have more than one of that section, they are both replaced.