A predicate filters a node-set with respect to an axis to produce a new node-set. For each node in the node-set to be filtered, the PredicateExpr is evaluated with that node as the context node, with the number of nodes in the node-set as the context size, and with the proximity position of the node in the node-set with respect to the axis as the context position; if PredicateExpr evaluates to true for that node, the node is included in the new node-set; otherwise, it is not included.
A PredicateExpr is evaluated by evaluating the Expr and converting the result to a boolean. If the result is a number, the result will be converted to true if the number is equal to the context position and will be converted to false otherwise; if the result is not a number, then the result will be converted as if by a call to the boolean function. Thus a location path para is equivalent to para.
Expr takes a stack of path elements and a set of nodes (either a Parent or an Array and returns an Array of matching nodes
Builds a nodeset of all of the preceding nodes of the supplied node, in reverse document order
includes every element in the document that precedes this node,
except for ancestors
Returns the first advertised TupleSpace.
Compress filename with extension.
Indicate if this NameTuple is for a prerelease version.
A requirement is a prerelease if any of the versions inside of it are prereleases
A version is considered a prerelease if it contains a letter.
Can be used for quick navigation to the rdoc documentation. You can then define a search shortcut for your browser. E.g. in Firefox connect ‘shortcut:rdoc’ to localhost:8808/rdoc?q=%s template. Then you can directly open the ActionPack documentation by typing ‘rdoc actionp’. If there are multiple hits for the search term, they are presented as a list with links.
Search algorithm aims for an intuitive search:
first try to find the gems and documentation folders which name starts with the search term
search for entries, that contain the search term
show all the gems
If there is only one search hit, user is immediately redirected to the documentation for the particular gem, otherwise a list with results is shown.
Note: please adjust paths accordingly use for example ‘locate yaml.rb’ and ‘gem environment’ to identify directories, that are specific for your local installation
install Ruby sources
cd /usr/src sudo apt-get source ruby
generate documentation
rdoc -o /usr/lib/ruby/gems/1.8/doc/core/rdoc \ /usr/lib/ruby/1.8 ruby1.8-1.8.7.72
By typing ‘rdoc core’ you can now access the core documentation
Creates a new SourceList from an array of sources.
Shortcut for logging an ERROR message
Will the logger output ERROR messages?
Formats and writes to the stream converting parameters under control of the format string.
See Kernel#sprintf for format string details.
Prettify (indent) an HTML string.
string is the HTML string to indent. shift is the indentation unit to use; it defaults to two spaces.
print CGI.pretty("<HTML><BODY></BODY></HTML>") # <HTML> # <BODY> # </BODY> # </HTML> print CGI.pretty("<HTML><BODY></BODY></HTML>", "\t") # <HTML> # <BODY> # </BODY> # </HTML>
Generate a BlockQuote element as a string.
cite can either be a string, give the URI for the source of the quoted text, or a hash, giving all attributes of the element, or it can be omitted, in which case the element has no attributes.
The body is provided by the passed-in no-argument block
blockquote("http://www.example.com/quotes/foo.html") { "Foo!" } #=> "<BLOCKQUOTE CITE=\"http://www.example.com/quotes/foo.html\">Foo!</BLOCKQUOTE>