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Escaping regex string
I want to use input from a user as a regex pattern for a search over some text. It works, but how I can handle cases where user puts characters that have meaning in regex?
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Purpose of “consider_all_requests_local” in config/environments/development.rb?
What is the purpose of this Rails config setting...
2 Answers
2
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What is the meaning of the term “free function” in C++?
While reading the documentation for boost::test, I came across the term "free function". What I understand is that a free function is any function that doesn't return anything (Its return type is void). But after reading further it seems that free functions also don't take any arguments. But I am no...
regex for matching something if it is not preceded by something else
So with regex in java, I want to write a regex that will match if and only if the pattern is not preceded by certain characters. For example:
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How do you create nested dict in Python?
I have 2 CSV files: 'Data' and 'Mapping':
4 Answers
4
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Unique constraint that allows empty values in MySQL
I have a field that stores product codes. The codes are unique, but some products simply doesn't have a code. I can't invent codes because those are providers codes.
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Unpivot with column name
I have a table StudentMarks with columns Name, Maths, Science, English .
Data is like
4 Answers
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Insert the carriage return character in vim
I'm editing a network protocol frame stored a file in Unix ( \n newlines). I need to insert the carriage return character ( U+000D aka \r ). When I try to paste it from the clipboard ( "+p ) or type it using Ctrl + Shift + u - 000d , the linefeed is inserted ( U+000A ).
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Django fix Admin plural
How do I change some models name from "Categorys" to "Categories" on admin site in the new dev django version?
In the old version (whithout admin sites and admin models) you could just do this;
http://www.the-dig.com/blog/post/customize-plural-name-django-admin/
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Eclipse: Can you format code on save?
In Eclipse, under Windows -> Preference -> Java -> Code Style , you can define code templates for comments and code, and you can setup a code formatter.
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