class RDoc::CrossReference
RDoc::CrossReference is a reusable way to create cross references for names.
Constants
- ALL_CROSSREF_REGEXP
Version of CROSSREF_REGEXP used when
--hyperlink-all
is specified.- CLASS_REGEXP_STR
Regular expression to match class references
-
There can be a '\' in front of text to suppress the cross-reference
-
There can be a '::' in front of class names to reference from the top-level namespace.
-
The method can be followed by parenthesis (not recommended)
-
- CROSSREF_REGEXP
Regular expressions matching text that should potentially have cross-reference links generated are passed to add_special. Note that these expressions are meant to pick up text for which cross-references have been suppressed, since the suppression characters are removed by the code that is triggered.
- METHOD_REGEXP_STR
Regular expression to match method references.
See CLASS_REGEXP_STR
Attributes
Hash of references that have been looked-up to their replacements
Public Class Methods
Allows cross-references to be created based on the given
context
(RDoc::Context).
# File lib/rdoc/cross_reference.rb, line 110 def initialize context @context = context @store = context.store @seen = {} end
Public Instance Methods
Returns a reference to name
.
If the reference is found and name
is not documented
text
will be returned. If name
is escaped
name
is returned. If name
is not found
text
is returned.
# File lib/rdoc/cross_reference.rb, line 124 def resolve name, text return @seen[name] if @seen.include? name if /#{CLASS_REGEXP_STR}([.#]|::)#{METHOD_REGEXP_STR}/o =~ name then type = $2 type = '' if type == '.' # will find either #method or ::method method = "#{type}#{$3}" container = @context.find_symbol_module($1) elsif /^([.#]|::)#{METHOD_REGEXP_STR}/o =~ name then type = $1 type = '' if type == '.' method = "#{type}#{$2}" container = @context else container = nil end if container then ref = container.find_local_symbol method unless ref || RDoc::TopLevel === container then ref = container.find_ancestor_local_symbol method end end ref = case name when /^\(#{CLASS_REGEXP_STR})$/o then @context.find_symbol $1 else @context.find_symbol name end unless ref # Try a page name ref = @store.page name if not ref and name =~ /^\w+$/ ref = nil if RDoc::Alias === ref # external alias, can't link to it out = if name == '\' then name elsif name =~ /^\/ then # we remove the \ only in front of what we know: # other backslashes are treated later, only outside of <tt> ref ? $' : name elsif ref then if ref.display? then ref else text end else text end @seen[name] = out out end