keyword

问题 This question already has answers here : text-mine PDF files with Python? (2 answers) Closed 5 years ago . I have like 400 or more PDF files that together form a single text. Its like a book separated page by page. I need to programatically be able to search some keywords over the whole text. So my first question is: is it better to search page by page or join all the PDFs in one big file first and then perform the search? The second one is: what is the best way to make it? Is there already

问题 Currently, I am using the Twitter streaming API to get realtime tweets for certain keywords. However, I would like to skip tweets that are irrelevant before getting them. With the Search API I can search for "hello -john" so I only get tweets that contain the word hello, but not John or I can search for "hello Maria OR Andrew" so I get only tweets that contain the word hello AND either Maria or Andrew. With the Streaming API, I can only give keywords but is there a way I can use -john or

问题 How do you guys avoid keyword conflicts in your language? For example, I'm creating a class (VB 2008) to hold all the configuration variables for some reports we generate. Naturally, one of the variables is "Date". And of course you can't have anything named the same as a keyword. In VB 2008 you do have the option of surrounding a conflicting word with []'s and fix it but I've always seen that as a hack. Any suggestions? What are your names to get around common keywords? Code to help

问题 This question already has answers here : How to use the pass statement? (15 answers) Closed 5 years ago . I have not seen the keyword pass used much in Python, except for the occasional exception, such as in here: Why is "except: pass" a bad programming practice? Are there any other example use-cases of pass which are acceptable/okay programming practice? 回答1: One use is to define a "stub" class or method that has a name but doesn't do anything. Maybe the most common case of this is to define

问题 This question already has answers here : How to use the pass statement? (15 answers) Closed 5 years ago . I have not seen the keyword pass used much in Python, except for the occasional exception, such as in here: Why is "except: pass" a bad programming practice? Are there any other example use-cases of pass which are acceptable/okay programming practice? 回答1: One use is to define a "stub" class or method that has a name but doesn't do anything. Maybe the most common case of this is to define

问题 This is a small part of a grammer using expressions. prefix = (lit(L"not") >> prefix) |(lit('-') >> prefix) | postfix ; Some way inside postfix I have name_pure to take an identifier .. name_pure = lexeme[+(boost::spirit::standard_wide::alpha | '_') >> *(boost::spirit::standard_wide::alnum | '_')]; So far all is fine. Can write something like a=not b But if I start to use not as a name prefix like this one a=not notvarname I get a parser Output from the AST which look like this a=not not

问题 Is there a method that allows you to use a keyword as a resource name in Java similar to the method used in C# of adding @ to the start of the word? I found some posts asking this a few years ago and it wasn't possible then. Was it possibly added though in Java 7 or may be added in Java 8? Reasons for doing this are very scarce. For me though I've encountered it when deserializing large json objects that use the keywords as variable names. A particular json object I'm working with uses throw.

问题 We are using Microsoft SQL Server 2008 R2 for one of our Classic ASP applications. We have two tables: TableA TableB TableA has the following columns: InstName(varchar[1024]) TableB has these columns: InstitutionName(varchar[1024]) However, we came across some data like the following TableA InstName with value University of Nantes [ Universites de Nantes ] TableB InstitutionName with value University of Nantes [ Universites de Nantes ] We need to run inner join select queries on the said 2

问题 I use .NET's OdbcConnectionStringBuilder to update a connection string read from a config file, which makes its keys lower case, as documented by MS ("Data Source" -> "data source"). The connection string is used to access MS SQL Server (2008, if it makes a difference). It works fine on my machine (Windows 7 32 bit), and according to MS's documentation it should work: Keywords are not case sensitive However, on several other machines (at least some are 64 bit), the connection to DB could not

问题 I found a few days ago a code in Java that uses the class keyword in the context, for example: MyConcreteClass.class.AMethod(); I've tried to do it in a JFrame, for example: JFrame.class.getName(); And that works but... I can't figure out/find on the internet what this keyword means in that context. I've only used it to declare classes. Can anyone explain me what class means in this context? Thanks, 回答1: In this context class is not a keyword, it's a special attribute (a "class literal") of a