tokenize

How do I parse a token from a string in C?

由 坚强是说给别人听的谎言 提交于 2019-12-10 15:46:53
问题 How do i parse tokens from an input string. For example: char *aString = "Hello world". I want the output to be: "Hello" "world" 回答1: You are going to want to use strtok - here is a good example. 回答2: Take a look at strtok, part of the standard library. 回答3: strtok is the easy answer, but what you really need is a lexer that does it properly. Consider the following: are there one or two spaces between "hello" and "world"? could that in fact be any amount of whitespace? could that include

Tokenize problem in Java with separator “. ”

由 蓝咒 提交于 2019-12-10 15:42:58
问题 I need to split a text using the separator ". " . For example I want this string : Washington is the U.S Capital. Barack is living there. To be cut into two parts: Washington is the U.S Capital. Barack is living there. Here is my code : // Initialize the tokenizer StringTokenizer tokenizer = new StringTokenizer("Washington is the U.S Capital. Barack is living there.", ". "); while (tokenizer.hasMoreTokens()) { System.out.println(tokenizer.nextToken()); } And the output is unfortunately :

Splitting text to sentences and sentence to words: BreakIterator vs regular expressions

由 柔情痞子 提交于 2019-12-10 13:34:26
问题 I accidentally answered a question where the original problem involved splitting sentence to separate words. And the author suggested to use BreakIterator to tokenize input strings and some people liked this idea. I just don't get that madness: how 25 lines of complicated code can be better than a simple one-liner with regexp? Please, explain me the pros of using BreakIterator and the real cases when it should be used. If it's really so cool and proper then I wonder: do you really use the

Elastic Search in ASP.NET - using ampersand sign

由 我怕爱的太早我们不能终老 提交于 2019-12-10 11:57:16
问题 I'm new to Elastic Search in ASP.NET, and I have a problem which I'm, so far, unable to resolve. From documentation, I've seen that & sign is not listed as a special character. Yet, when I submit my search ampersand sign is fully ignored. For example if I search for procter & gamble , & sign is fully ignored. That makes quite a lot of problems for me, because I have companies that have names like M&S . When & sign is ignored, I get basically everything that has M or S in it. If I try with

Tokenizing Strings

由 我的未来我决定 提交于 2019-12-10 09:54:10
问题 I have around 100 rows of text that I want to tokenize, which are alike the following: <word> <unknown number of spaces and tabs> <number> I am having trouble finding tokenize functions with VBA. What would be the easiest method to tokenize such strings in VBA? 回答1: You could read line by line and use the split function to split the word and number by space. I vaguely remeber VBA has the split function. I got the following link by searching in google. Not sure which version of office you are

Difference between WhitespaceTokenizerFactory and StandardTokenizerFactory

由 ◇◆丶佛笑我妖孽 提交于 2019-12-10 02:00:59
问题 I am new to Solr. By reading Solr's wiki, I don't understand the differences between WhitespaceTokenizerFactory and StandardTokenizerFactory. What's their real difference? 回答1: They differ in how they split the analyzed text into tokens. The StandardTokenizer does this based on the following (taken from lucene javadoc): Splits words at punctuation characters, removing punctuation. However, a dot that's not followed by whitespace is considered part of a token. Splits words at hyphens, unless

Boost::tokenizer comma separated (c++)

由 ♀尐吖头ヾ 提交于 2019-12-09 10:46:30
问题 Should be an easy one for you guys..... I'm playing around with tokenizers using Boost and I want create a token that is comma separated. here is my code: string s = "this is, , , a test"; boost::char_delimiters_separator<char> sep(","); boost::tokenizer<boost::char_delimiters_separator<char>>tok(s, sep); for(boost::tokenizer<>::iterator beg= tok.begin(); beg!=tok.end(); ++beg) { cout << *beg << "\n"; } The output that I want is: This is a test What I am getting is: This is , , , a test

Retrieve analyzed tokens from ElasticSearch documents

由 谁都会走 提交于 2019-12-09 07:30:33
问题 Trying to access the analyzed/tokenized text in my ElasticSearch documents. I know you can use the Analyze API to analyze arbitrary text according your analysis modules. So I could copy and paste data from my documents into the Analyze API to see how it was tokenized. This seems unnecessarily time consuming, though. Is there any way to instruct ElasticSearch to returned the tokenized text in search results? I've looked through the docs and haven't found anything. 回答1: Have a look at this

Challenge: Regex-only tokenizer for shell-assignment-like config lines

由 别等时光非礼了梦想. 提交于 2019-12-09 02:33:32
I asked the original question here , and got a practical response with mixed Ruby and Regular Expressions. Now, the purist in me wants know: Can this be done in regular expressions? My gut says it can. There's an ABNF floating around for bash 2.0, though it doesn't include string escapes. The Spec Given an input line that is either (1) a variable ("key") assignment from a bash-flavored script or (2) a key-value setting from a typical configuration file like postgresql.conf , this regex (or pair of regexen) should capture the key and value in such a way that I can use those captures to

How to define special “untokenizable” words for nltk.word_tokenize

由 我们两清 提交于 2019-12-08 19:26:38
问题 I'm using nltk.word_tokenize for tokenizing some sentences which contain programming languages, frameworks, etc., which get incorrectly tokenized. For example: >>> tokenize.word_tokenize("I work with C#.") ['I', 'work', 'with', 'C', '#', '.'] Is there a way to enter a list of "exceptions" like this to the tokenizer? I already have compiled a list of all the things (languages, etc.) that I don't want to split. 回答1: The Multi Word Expression Tokenizer should be what you need. You add the list
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