Tagging CALayers in iPhone

You can also use the name property of the CALayer. [layer setName:@”myKey”]; To look it up, – (CALayer *)myLayer { for (CALayer *layer in [superLayerOfMyLayer sublayers]) { if ([[layer name] isEqualToString:LabelLayerName]) { return layer; } } return nil; }

Building a web search engine [closed]

There are several parts to a search engine. Broadly speaking, in a hopelessly general manner (folks, feel free to edit if you feel you can add better descriptions, links, etc): The crawler. This is the part that goes through the web, grabs the pages, and stores information about them into some central data store. In … Read more

Difference between BooleanClause.Occur.Must and BooleanClause.Occur.SHOULD in lucene

BooleanClause.Occur.SHOULD means that the clause is optional, whereas BooleanClause.Occur.Must means that the clause is compulsory. However, if a boolean query only has optional clauses, at least one clause must match for a document to appear in the results. For better control over what documents match a BooleanQuery, there is also a minimumShouldMatch parameter which lets … Read more

Search and delete multiple lines

The :global command is your friend – learn it well. It lets you run arbitrary :ex commands on every line that matches a regex. It abbreviates to :g. To delete all lines that match “George Bush”: :g/George Bush/ d The command that follows can have its own address/range prefix, which will be relative to the … Read more

ElasticSearch – Searching For Human Names

First, I recreated your current configuration in Play: https://www.found.no/play/gist/867785a709b4869c5543 If you go there, switch to the “Analysis”-tab to see how the text is transformed: Note, for example that Heaney ends up tokenized as [hn, heanei] with the search_analyzer and as [HN, heanei] with the index_analyzer. Note the case-difference for the metaphone-term. Thus, that one is … Read more

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