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Refine String using Python/Regular Expression
How to merge two dictionaries in a single expression?Calling an external command in PythonWhat are metaclasses in Python?How to validate an email address using a regular expression?How to get a function name as a string in Python?Regular expression to match a line that doesn't contain a wordHow do I make the first letter of a string uppercase in JavaScript?How to replace all occurrences of a string in JavaScriptDoes Python have a string 'contains' substring method?Remove all whitespace in a string in Python
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
please help me with refining this string using python/regex.
It also have large whitespaces.
/**
* this is comment this is comment
* this is comment
* <blank line>
* this is comment
* this is comment
* <blank line>
* this is comment
*/
how to get a plain text by removing /**, *
I expect the output string should be :
this is comment
this is comment
this is comment
this is comment
this is comment
python regex python-3.x regular-language
asked Mar 23 at 8:58
Shahu RongheShahu Ronghe
426
add a comment |
please help me with refining this string using python/regex.
It also have large whitespaces.
/**
* this is comment this is comment
* this is comment
* <blank line>
* this is comment
* this is comment
* <blank line>
* this is comment
*/
how to get a plain text by removing /**, *
I expect the output string should be :
this is comment
this is comment
this is comment
this is comment
this is comment
python regex python-3.x regular-language
asked Mar 23 at 8:58
Shahu RongheShahu Ronghe
426
add a comment |
please help me with refining this string using python/regex.
It also have large whitespaces.
/**
* this is comment this is comment
* this is comment
* <blank line>
* this is comment
* this is comment
* <blank line>
* this is comment
*/
how to get a plain text by removing /**, *
I expect the output string should be :
this is comment
this is comment
this is comment
this is comment
this is comment
python regex python-3.x regular-language
asked Mar 23 at 8:58
Shahu RongheShahu Ronghe
426
please help me with refining this string using python/regex.
It also have large whitespaces.
/**
* this is comment this is comment
* this is comment
* <blank line>
* this is comment
* this is comment
* <blank line>
* this is comment
*/
how to get a plain text by removing /**, *
I expect the output string should be :
this is comment
this is comment
this is comment
this is comment
this is comment
python regex python-3.x regular-language
python regex python-3.x regular-language
asked Mar 23 at 8:58
Shahu RongheShahu Ronghe
426
asked Mar 23 at 8:58
Shahu RongheShahu Ronghe
426
asked Mar 23 at 8:58
Shahu RongheShahu Ronghe
426
asked Mar 23 at 8:58
Shahu RongheShahu Ronghe
426
asked Mar 23 at 8:58
Shahu RongheShahu Ronghe
426
426
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
You can use the sub() function from the RegEx module to match unwanted characters and format the input string. Here's a proof of concept which gives the output you want. You can test it here: https://repl.it/@glhr/regex-fun
import re
inputStr = """/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/"""
formattedStr = re.sub("[*/]", "", inputStr) # comments
formattedStr = re.sub("ns2,|s2,", "n", formattedStr) # extra whitespaces
formattedStr = re.sub("^n+|n+$|n2,", "", formattedStr) # extra blank lines
print(formattedStr)
You can experiment with regular expressions on sites like https://regexr.com/
answered Mar 23 at 9:48
glhrglhr
3,2421921
add a comment |
As it is clear now that OP expected that comment this is comment six times, hence I suggest using this regex,
^[ /*]+n?| 2,(.*(n))
And replace it with 21.
Demo
Also, you really don't need three separate regex (as other accepted answer) to achieve this, instead it can be done using just a single regex.
Here is a Python code demo,
import re
s = '''/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/'''
print(re.sub(r'(?m)^[ /*]+n?| 2,(.*(n))', r'21', s))
Prints following and notice I have enabled multiline mode using (?m) before the regex as suggested by FailSafe and many thanks to him for suggesting it as it wasn't otherwise noticeable,
this is comment
this is comment
this is comment
this is comment
this is comment
this is comment
Let me know if you need explanation of any part in my answer.
answered Mar 23 at 9:42
Pushpesh Kumar RajwanshiPushpesh Kumar Rajwanshi
15.6k21332
1
@FailSafe: Yes agree. Actually OP's post is a little incorrect. In his post his expected output liststhis is commentfive times where as he actually expected it six times as can be seen in expected answer, which is why I think he didn't accept my answer but that's not my fault :). Also when I posted this answer I was in a little hurry else I always give a demo code solution too. The other answer uses three different substitution otherwise it can be done in a single substitution with this regex. Check Demo
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:00
1
@"Pushpesh Kumar Rajwanshi" Yes definitely. I saw the mistake and wondered if he wanted it broken out, but that was negligible. Still, I'm +1'ing yours, but just want to ask you to edit it s it mentioned that multiline needs to be enabled.
– FailSafe
Mar 23 at 17:07
1
@FailSafe: Thanks for upvote :) I appreciate you giving time to read my answer. I've updated my answer with a regex that gives correct output of listing comment six times and also gave python code solution, enabling multiline mode too and mentioning it specifically as you suggested and you were right indeed. People generally tend to miss such small attributes.
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:12
1
@"Pushpesh Kumar Rajwanshi" Holy crap. Re.Sub substitutes on the fly!! I spent like the last half hour trying to figure out how you got* this is comment this is commentto print on separate lines. Wow. I learned something new.
– FailSafe
Mar 23 at 17:48
1
@FailSafe: Yes it does and my solution exploits that well to get the desired results and hence is a little non-trivial.
– Pushpesh Kumar Rajwanshi
Mar 23 at 19:26
|
show 3 more comments
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can use the sub() function from the RegEx module to match unwanted characters and format the input string. Here's a proof of concept which gives the output you want. You can test it here: https://repl.it/@glhr/regex-fun
import re
inputStr = """/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/"""
formattedStr = re.sub("[*/]", "", inputStr) # comments
formattedStr = re.sub("ns2,|s2,", "n", formattedStr) # extra whitespaces
formattedStr = re.sub("^n+|n+$|n2,", "", formattedStr) # extra blank lines
print(formattedStr)
You can experiment with regular expressions on sites like https://regexr.com/
answered Mar 23 at 9:48
glhrglhr
3,2421921
add a comment |
You can use the sub() function from the RegEx module to match unwanted characters and format the input string. Here's a proof of concept which gives the output you want. You can test it here: https://repl.it/@glhr/regex-fun
import re
inputStr = """/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/"""
formattedStr = re.sub("[*/]", "", inputStr) # comments
formattedStr = re.sub("ns2,|s2,", "n", formattedStr) # extra whitespaces
formattedStr = re.sub("^n+|n+$|n2,", "", formattedStr) # extra blank lines
print(formattedStr)
You can experiment with regular expressions on sites like https://regexr.com/
answered Mar 23 at 9:48
glhrglhr
3,2421921
add a comment |
You can use the sub() function from the RegEx module to match unwanted characters and format the input string. Here's a proof of concept which gives the output you want. You can test it here: https://repl.it/@glhr/regex-fun
import re
inputStr = """/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/"""
formattedStr = re.sub("[*/]", "", inputStr) # comments
formattedStr = re.sub("ns2,|s2,", "n", formattedStr) # extra whitespaces
formattedStr = re.sub("^n+|n+$|n2,", "", formattedStr) # extra blank lines
print(formattedStr)
You can experiment with regular expressions on sites like https://regexr.com/
answered Mar 23 at 9:48
glhrglhr
3,2421921
You can use the sub() function from the RegEx module to match unwanted characters and format the input string. Here's a proof of concept which gives the output you want. You can test it here: https://repl.it/@glhr/regex-fun
import re
inputStr = """/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/"""
formattedStr = re.sub("[*/]", "", inputStr) # comments
formattedStr = re.sub("ns2,|s2,", "n", formattedStr) # extra whitespaces
formattedStr = re.sub("^n+|n+$|n2,", "", formattedStr) # extra blank lines
print(formattedStr)
You can experiment with regular expressions on sites like https://regexr.com/
answered Mar 23 at 9:48
glhrglhr
3,2421921
edited Mar 23 at 10:06
answered Mar 23 at 9:48
glhrglhr
3,2421921
answered Mar 23 at 9:48
glhrglhr
3,2421921
answered Mar 23 at 9:48
glhrglhr
3,2421921
3,2421921
add a comment |
add a comment |
As it is clear now that OP expected that comment this is comment six times, hence I suggest using this regex,
^[ /*]+n?| 2,(.*(n))
And replace it with 21.
Demo
Also, you really don't need three separate regex (as other accepted answer) to achieve this, instead it can be done using just a single regex.
Here is a Python code demo,
import re
s = '''/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/'''
print(re.sub(r'(?m)^[ /*]+n?| 2,(.*(n))', r'21', s))
Prints following and notice I have enabled multiline mode using (?m) before the regex as suggested by FailSafe and many thanks to him for suggesting it as it wasn't otherwise noticeable,
this is comment
this is comment
this is comment
this is comment
this is comment
this is comment
Let me know if you need explanation of any part in my answer.
answered Mar 23 at 9:42
Pushpesh Kumar RajwanshiPushpesh Kumar Rajwanshi
15.6k21332
1
@FailSafe: Yes agree. Actually OP's post is a little incorrect. In his post his expected output liststhis is commentfive times where as he actually expected it six times as can be seen in expected answer, which is why I think he didn't accept my answer but that's not my fault :). Also when I posted this answer I was in a little hurry else I always give a demo code solution too. The other answer uses three different substitution otherwise it can be done in a single substitution with this regex. Check Demo
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:00
1
@"Pushpesh Kumar Rajwanshi" Yes definitely. I saw the mistake and wondered if he wanted it broken out, but that was negligible. Still, I'm +1'ing yours, but just want to ask you to edit it s it mentioned that multiline needs to be enabled.
– FailSafe
Mar 23 at 17:07
1
@FailSafe: Thanks for upvote :) I appreciate you giving time to read my answer. I've updated my answer with a regex that gives correct output of listing comment six times and also gave python code solution, enabling multiline mode too and mentioning it specifically as you suggested and you were right indeed. People generally tend to miss such small attributes.
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:12
1
@"Pushpesh Kumar Rajwanshi" Holy crap. Re.Sub substitutes on the fly!! I spent like the last half hour trying to figure out how you got* this is comment this is commentto print on separate lines. Wow. I learned something new.
– FailSafe
Mar 23 at 17:48
1
@FailSafe: Yes it does and my solution exploits that well to get the desired results and hence is a little non-trivial.
– Pushpesh Kumar Rajwanshi
Mar 23 at 19:26
|
show 3 more comments
As it is clear now that OP expected that comment this is comment six times, hence I suggest using this regex,
^[ /*]+n?| 2,(.*(n))
And replace it with 21.
Demo
Also, you really don't need three separate regex (as other accepted answer) to achieve this, instead it can be done using just a single regex.
Here is a Python code demo,
import re
s = '''/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/'''
print(re.sub(r'(?m)^[ /*]+n?| 2,(.*(n))', r'21', s))
Prints following and notice I have enabled multiline mode using (?m) before the regex as suggested by FailSafe and many thanks to him for suggesting it as it wasn't otherwise noticeable,
this is comment
this is comment
this is comment
this is comment
this is comment
this is comment
Let me know if you need explanation of any part in my answer.
answered Mar 23 at 9:42
Pushpesh Kumar RajwanshiPushpesh Kumar Rajwanshi
15.6k21332
1
@FailSafe: Yes agree. Actually OP's post is a little incorrect. In his post his expected output liststhis is commentfive times where as he actually expected it six times as can be seen in expected answer, which is why I think he didn't accept my answer but that's not my fault :). Also when I posted this answer I was in a little hurry else I always give a demo code solution too. The other answer uses three different substitution otherwise it can be done in a single substitution with this regex. Check Demo
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:00
1
@"Pushpesh Kumar Rajwanshi" Yes definitely. I saw the mistake and wondered if he wanted it broken out, but that was negligible. Still, I'm +1'ing yours, but just want to ask you to edit it s it mentioned that multiline needs to be enabled.
– FailSafe
Mar 23 at 17:07
1
@FailSafe: Thanks for upvote :) I appreciate you giving time to read my answer. I've updated my answer with a regex that gives correct output of listing comment six times and also gave python code solution, enabling multiline mode too and mentioning it specifically as you suggested and you were right indeed. People generally tend to miss such small attributes.
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:12
1
@"Pushpesh Kumar Rajwanshi" Holy crap. Re.Sub substitutes on the fly!! I spent like the last half hour trying to figure out how you got* this is comment this is commentto print on separate lines. Wow. I learned something new.
– FailSafe
Mar 23 at 17:48
1
@FailSafe: Yes it does and my solution exploits that well to get the desired results and hence is a little non-trivial.
– Pushpesh Kumar Rajwanshi
Mar 23 at 19:26
|
show 3 more comments
As it is clear now that OP expected that comment this is comment six times, hence I suggest using this regex,
^[ /*]+n?| 2,(.*(n))
And replace it with 21.
Demo
Also, you really don't need three separate regex (as other accepted answer) to achieve this, instead it can be done using just a single regex.
Here is a Python code demo,
import re
s = '''/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/'''
print(re.sub(r'(?m)^[ /*]+n?| 2,(.*(n))', r'21', s))
Prints following and notice I have enabled multiline mode using (?m) before the regex as suggested by FailSafe and many thanks to him for suggesting it as it wasn't otherwise noticeable,
this is comment
this is comment
this is comment
this is comment
this is comment
this is comment
Let me know if you need explanation of any part in my answer.
answered Mar 23 at 9:42
Pushpesh Kumar RajwanshiPushpesh Kumar Rajwanshi
15.6k21332
As it is clear now that OP expected that comment this is comment six times, hence I suggest using this regex,
^[ /*]+n?| 2,(.*(n))
And replace it with 21.
Demo
Also, you really don't need three separate regex (as other accepted answer) to achieve this, instead it can be done using just a single regex.
Here is a Python code demo,
import re
s = '''/**
* this is comment this is comment
* this is comment
*
* this is comment
* this is comment
*
* this is comment
*/'''
print(re.sub(r'(?m)^[ /*]+n?| 2,(.*(n))', r'21', s))
Prints following and notice I have enabled multiline mode using (?m) before the regex as suggested by FailSafe and many thanks to him for suggesting it as it wasn't otherwise noticeable,
this is comment
this is comment
this is comment
this is comment
this is comment
this is comment
Let me know if you need explanation of any part in my answer.
answered Mar 23 at 9:42
Pushpesh Kumar RajwanshiPushpesh Kumar Rajwanshi
15.6k21332
edited Mar 23 at 17:07
answered Mar 23 at 9:42
Pushpesh Kumar RajwanshiPushpesh Kumar Rajwanshi
15.6k21332
answered Mar 23 at 9:42
Pushpesh Kumar RajwanshiPushpesh Kumar Rajwanshi
15.6k21332
answered Mar 23 at 9:42
Pushpesh Kumar RajwanshiPushpesh Kumar Rajwanshi
15.6k21332
15.6k21332
1
@FailSafe: Yes agree. Actually OP's post is a little incorrect. In his post his expected output liststhis is commentfive times where as he actually expected it six times as can be seen in expected answer, which is why I think he didn't accept my answer but that's not my fault :). Also when I posted this answer I was in a little hurry else I always give a demo code solution too. The other answer uses three different substitution otherwise it can be done in a single substitution with this regex. Check Demo
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:00
1
@"Pushpesh Kumar Rajwanshi" Yes definitely. I saw the mistake and wondered if he wanted it broken out, but that was negligible. Still, I'm +1'ing yours, but just want to ask you to edit it s it mentioned that multiline needs to be enabled.
– FailSafe
Mar 23 at 17:07
1
@FailSafe: Thanks for upvote :) I appreciate you giving time to read my answer. I've updated my answer with a regex that gives correct output of listing comment six times and also gave python code solution, enabling multiline mode too and mentioning it specifically as you suggested and you were right indeed. People generally tend to miss such small attributes.
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:12
1
@"Pushpesh Kumar Rajwanshi" Holy crap. Re.Sub substitutes on the fly!! I spent like the last half hour trying to figure out how you got* this is comment this is commentto print on separate lines. Wow. I learned something new.
– FailSafe
Mar 23 at 17:48
1
@FailSafe: Yes it does and my solution exploits that well to get the desired results and hence is a little non-trivial.
– Pushpesh Kumar Rajwanshi
Mar 23 at 19:26
|
show 3 more comments
1
@FailSafe: Yes agree. Actually OP's post is a little incorrect. In his post his expected output liststhis is commentfive times where as he actually expected it six times as can be seen in expected answer, which is why I think he didn't accept my answer but that's not my fault :). Also when I posted this answer I was in a little hurry else I always give a demo code solution too. The other answer uses three different substitution otherwise it can be done in a single substitution with this regex. Check Demo
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:00
1
@"Pushpesh Kumar Rajwanshi" Yes definitely. I saw the mistake and wondered if he wanted it broken out, but that was negligible. Still, I'm +1'ing yours, but just want to ask you to edit it s it mentioned that multiline needs to be enabled.
– FailSafe
Mar 23 at 17:07
1
@FailSafe: Thanks for upvote :) I appreciate you giving time to read my answer. I've updated my answer with a regex that gives correct output of listing comment six times and also gave python code solution, enabling multiline mode too and mentioning it specifically as you suggested and you were right indeed. People generally tend to miss such small attributes.
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:12
1
@"Pushpesh Kumar Rajwanshi" Holy crap. Re.Sub substitutes on the fly!! I spent like the last half hour trying to figure out how you got* this is comment this is commentto print on separate lines. Wow. I learned something new.
– FailSafe
Mar 23 at 17:48
1
@FailSafe: Yes it does and my solution exploits that well to get the desired results and hence is a little non-trivial.
– Pushpesh Kumar Rajwanshi
Mar 23 at 19:26
1
1
@FailSafe: Yes agree. Actually OP's post is a little incorrect. In his post his expected output lists
this is comment five times where as he actually expected it six times as can be seen in expected answer, which is why I think he didn't accept my answer but that's not my fault :). Also when I posted this answer I was in a little hurry else I always give a demo code solution too. The other answer uses three different substitution otherwise it can be done in a single substitution with this regex. Check Demo– Pushpesh Kumar Rajwanshi
Mar 23 at 17:00
@FailSafe: Yes agree. Actually OP's post is a little incorrect. In his post his expected output lists
this is comment five times where as he actually expected it six times as can be seen in expected answer, which is why I think he didn't accept my answer but that's not my fault :). Also when I posted this answer I was in a little hurry else I always give a demo code solution too. The other answer uses three different substitution otherwise it can be done in a single substitution with this regex. Check Demo– Pushpesh Kumar Rajwanshi
Mar 23 at 17:00
1
1
@"Pushpesh Kumar Rajwanshi" Yes definitely. I saw the mistake and wondered if he wanted it broken out, but that was negligible. Still, I'm +1'ing yours, but just want to ask you to edit it s it mentioned that multiline needs to be enabled.
– FailSafe
Mar 23 at 17:07
@"Pushpesh Kumar Rajwanshi" Yes definitely. I saw the mistake and wondered if he wanted it broken out, but that was negligible. Still, I'm +1'ing yours, but just want to ask you to edit it s it mentioned that multiline needs to be enabled.
– FailSafe
Mar 23 at 17:07
1
1
@FailSafe: Thanks for upvote :) I appreciate you giving time to read my answer. I've updated my answer with a regex that gives correct output of listing comment six times and also gave python code solution, enabling multiline mode too and mentioning it specifically as you suggested and you were right indeed. People generally tend to miss such small attributes.
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:12
@FailSafe: Thanks for upvote :) I appreciate you giving time to read my answer. I've updated my answer with a regex that gives correct output of listing comment six times and also gave python code solution, enabling multiline mode too and mentioning it specifically as you suggested and you were right indeed. People generally tend to miss such small attributes.
– Pushpesh Kumar Rajwanshi
Mar 23 at 17:12
1
1
@"Pushpesh Kumar Rajwanshi" Holy crap. Re.Sub substitutes on the fly!! I spent like the last half hour trying to figure out how you got
* this is comment this is comment to print on separate lines. Wow. I learned something new.– FailSafe
Mar 23 at 17:48
@"Pushpesh Kumar Rajwanshi" Holy crap. Re.Sub substitutes on the fly!! I spent like the last half hour trying to figure out how you got
* this is comment this is comment to print on separate lines. Wow. I learned something new.– FailSafe
Mar 23 at 17:48
1
1
@FailSafe: Yes it does and my solution exploits that well to get the desired results and hence is a little non-trivial.
– Pushpesh Kumar Rajwanshi
Mar 23 at 19:26
@FailSafe: Yes it does and my solution exploits that well to get the desired results and hence is a little non-trivial.
– Pushpesh Kumar Rajwanshi
Mar 23 at 19:26
|
show 3 more comments
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