find

问题 I have several projects configured by a pom.xml or similar. I would like to use the linux file command to locate these projects e.g. by find -name pom.xml . This however takes some time because of the deep paths. I would like to use find -prune to stop searching in subdirectories when I already find the file, but prune only stops on matched directories not on matched files. Is there a way to get find to stop descending when the directory aleady contains a searched file? For clarification;

问题 I am writing a generic repository to interface with EF using DBContext. I have a generic Get() method which receives a primary key value and returns the entity: public class DALRepository<DALEntity> : IDisposable, IGenericRepository<DALEntity> where DALEntity : class { private IDbSet<DALEntity> dbSet; private NWEntities context; public DALRepository() { context = new NWEntities(); context.Configuration.LazyLoadingEnabled = false; dbSet = context.Set<DALEntity>(); } Here's a simple get method

问题 I am writing a generic repository to interface with EF using DBContext. I have a generic Get() method which receives a primary key value and returns the entity: public class DALRepository<DALEntity> : IDisposable, IGenericRepository<DALEntity> where DALEntity : class { private IDbSet<DALEntity> dbSet; private NWEntities context; public DALRepository() { context = new NWEntities(); context.Configuration.LazyLoadingEnabled = false; dbSet = context.Set<DALEntity>(); } Here's a simple get method

问题 I am writing a generic repository to interface with EF using DBContext. I have a generic Get() method which receives a primary key value and returns the entity: public class DALRepository<DALEntity> : IDisposable, IGenericRepository<DALEntity> where DALEntity : class { private IDbSet<DALEntity> dbSet; private NWEntities context; public DALRepository() { context = new NWEntities(); context.Configuration.LazyLoadingEnabled = false; dbSet = context.Set<DALEntity>(); } Here's a simple get method

问题 Under the hood, an STL map is a red-black tree, and it uses the < operator of its keys or a user-provided comparison to figure out the location for element insertion. map::find() returns the element that matches the supplied key (if any matches are present) How can it do this without using an equality operator? Let's say my map has the keys 1, 2, 3, and 4 in it. Using only <, I could see that the key 2 should go after 1, after 2, and before 3. But I can't tell whether or not 2 is the same as

问题 How do you find collocations in text? A collocation is a sequence of words that occurs together unusually often. python has built-in func bigrams that returns word pairs. >>> bigrams(['more', 'is', 'said', 'than', 'done']) [('more', 'is'), ('is', 'said'), ('said', 'than'), ('than', 'done')] >>> What's left is to find bigrams that occur more often based on the frequency of individual words. Any ideas how to put it in the code? 回答1: Try NLTK. You will mostly be interested in nltk.collocations

问题 I'm reading the GNU find 's man page and stumbling upon this switch: -regextype type Changes the regular expression syntax understood by -regex and -iregex tests which occur later on the command line. Currently- implemented types are emacs (this is the default), posix-awk, posix- basic, posix-egrep and posix-extended. What's the difference between those regex syntaxes? I'm more familiar with Ruby's regex, so what type of regex should I use with find ? 回答1: Regular expressions are implemented

问题 I have a list of images, collected using the following line: # find . -mindepth 1 -type f -name "*.JPG" | grep "MG_[0-9][0-9][0-9][0-9].JPG" output: ./DCIM/103canon/IMG_0039.JPG ./DCIM/103canon/IMG_0097.JPG ./DCIM/103canon/IMG_1600.JPG ./DCIM/103canon/IMG_2317.JPG ./DCIM/IMG_0042.JPG ./DCIM/IMG_1152.JPG ./DCIM/IMG_1810.JPG ./DCIM/IMG_2564.JPG ./images/IMG_0058.JPG ./images/IMG_0079.JPG ./images/IMG_1233.JPG ./images/IMG_1959.JPG ./images/IMG_2012/favs/IMG_0039.JPG ./images/IMG_2012/favs/IMG

问题 I'd like to use the find() method, to catch a particular element of my std::map() Now the return value is either the element I was looking for, or it it points to the end of the map if the element hasn't been found (C.f.: http://www.cplusplus.com/reference/map/map/find/ ). So I'm using these two information whether to decide if an element is in the map or not. But what happens if the element is already inside but at the very end ? My if-query would then decide that it's not existing and

问题 I'd like to use the find() method, to catch a particular element of my std::map() Now the return value is either the element I was looking for, or it it points to the end of the map if the element hasn't been found (C.f.: http://www.cplusplus.com/reference/map/map/find/ ). So I'm using these two information whether to decide if an element is in the map or not. But what happens if the element is already inside but at the very end ? My if-query would then decide that it's not existing and