I'm trying to create regular expression that matches on any string except one that contains the word "blog". I know that Re2 Doesn't support negative look aheads, but wasn't sure if there was a workaround for this (I couldn't find a definitive answer when looking around on StackOverflow). Is anyone able to point me in the right direction?
I'm a bit stuck using Re2 in this situation because that's what Google Analytics + Zapier allows.
In another flavor of regex, I think that (?s)\A(?!.*?data:).* would work, but I don't think that'll work here.
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How to read numbers in powershell can anyone please explain me this thing coded in power shell its coded like
if(($commit Id -match 'release(-)\d+(.\d)+(.\d)$')) {echo $ci_commit}
please need a explanation for the above code snippet i did'nt get what is coded in release(...)
That thing is called a regular expression, and are a cornerstone of formal language theory in computer science. There are tons of tutorials available of different focus. For a visual representation, there are tools too.
That being said,
if(($commit Id -match 'release(-)\d+(.\d)+(.\d)$')) {echo $ci_commit}
means that - skipping the obvious mistake in $commit Id as it cannot have a space - means that it will look for text release-, followed by numbers, anything, numbers, dot, number and end of line.
If you need help how to create a regex, ask a new question with your attempt of regex and (wrong) results. Include some example data and what you'd like to get out of it. If there are things that should not be matched, or tricky edge cases, add those too.
I found these 2 words "dont" and "isnt" in the vector file glove.6B.50d.txt downloaded from https://nlp.stanford.edu/projects/glove/. I wonder if they were originally "don't" and "isn't". This will likely depend on the sentence_to_word parsing algorithms they used. If someone is familiar, please confirm if this is the case.
A secondary question is if this is a common way to deal with apostrophe for words like "don't", "isn't", "hasn't" and so on. i.e. just filter replace that apostrophe with an empty string such that "don" and "t" becomes one word.
Finally, I am also not sure if GloVe comes with API to do sentence_to_word parsing so you can be consistent with what the researchers have done originally.
I think dont and isnt really are originally don't and isn't. I have seen a few other such examples. I suspect this is just the specific way GloVe researchers handle this.
I'm trying to understand what is the query format when I press (Cmd + P) or (Comd + T) and then type something.
Let's say I type ABC. it seems to me that VSCode searches using the regex A.*B.*C.*. Is it correct? It also appears that * is also allowed in the query, but I got confusing results, for example here
Can someone please point me out to the documentation about the query format?
It is called "fuzzy" matching or searching. I couldn't find any formal documentation other than something like implementing fuzzy matching. For your odd test case of vs*b it looks like they are trying to implement fuzzy matching with out-of-order symbols like some other editors have.
See also More fuzzy matching:VSCode documenation
The file picker is not using regular expressions, but a fuzzy search algorithm. I think this feature is somehow connected to IntelliSense, but I am not aware of any detailed technical documentation. However, it has been introduced in December 2015 (VSCode 0.10.6) and became a default setting in January 2016 (VSCode 0.10.9).
On GitHub you can find an issue collecting bug reports / feature requests regarding the fuzzy searching. If you want to dig much deeper into this topic, you might find a good starting point there.
As a side note, also the User Settings(File > Preferences > Settings) seem to use the same kind of fuzzy search:
Good evening to all!
As a fan of regular expressions in Perl, I came up with a question, which I could not answer by googling and searching for myself.
So let me give you a minimal example of my problem:
I have two text-files:
FileA.txt:
aaabbb
FileB.txt:
abbb
I want to check each file-content if it is a word, generated by a specific contextfree language. For example in this case:
L={a^nb^n | n > 0}.
Now I have the problem, that the regex from Perl won't work, since it isn't a regular language.
For sure I could script a little PDA and check if it terminates.
But is there another way in Perl to solve this problem? Maybe a way to pass a context-free-grammar or sth.?
I'd like to check hardcoded values in (a lot of) Smartforms and SAPScript forms.
I have found a way to read the source code of both of these, but it seems that i will have to go through a lot of parsing before I get anything reliable.
I've come across function module GET_LITERAL but that doesn't seem to help me much since i have to specify the offset of the value, if i got right what the function is doing in the first place.
I also found RS_LITERAL_LIST but that also doesn't do what i expect.
I also tried searching for reports and methods, but haven't found anything that seemed to help.
A backup plan would be to get some good parsing tool, so do you know of anything like that.
Anyway, any hints would be helpful and appreciated.
[EDIT]
Forgot to mention, the version of my system is 4.6C
If you have a fairly recent version of ABAP, you can use a regex.
Follow the pattern of this example, but use your source as the text and create your own regex. Have it look for any single quotes on the end of a word separated by spaces or any integers with spaces on either side. That's just a start, you might need to work on a better pattern.
String functions count, find, and match