class TaskJuggler::RichTextParser
This is the parser class used by the RichText
class to convert the input text into an intermediate representation. Most of the actual work is done by the generic TextParser
class. The syntax description for the markup language is provided by the RichTextSyntaxRules
module. To break the input String
into tokens, the RichTextScanner
class is used.
Public Class Methods
Source
# File lib/taskjuggler/RichText/Parser.rb, line 32 def initialize(rti, sectionCounter = [ 0, 0, 0, 0 ], tokenSet = nil) super() @richTextI = rti # These are the tokens that can be returned by the RichTextScanner. @variables = [ :LINEBREAK, :SPACE, :WORD, :BOLD, :ITALIC, :CODE, :BOLDITALIC, :PRE, :HREF, :HREFEND, :REF, :REFEND, :HLINE, :HTMLBLOB, :FCOLSTART, :FCOLEND, :QUERY, :INLINEFUNCSTART, :INLINEFUNCEND, :BLOCKFUNCSTART, :BLOCKFUNCEND, :ID, :STRING, :TITLE1, :TITLE2, :TITLE3, :TITLE4, :TITLE1END, :TITLE2END, :TITLE3END, :TITLE4END, :BULLET1, :BULLET2, :BULLET3, :BULLET4, :NUMBER1, :NUMBER2, :NUMBER3, :NUMBER4 ] limitTokenSet(tokenSet) # Load the rule set into the parser. initRules updateParserTables # The sections and numbered list can each nest 3 levels deep. We use these # counter Arrays to generate proper 1.2.3 type labels. @sectionCounter = sectionCounter @numberListCounter = [ 0, 0, 0, 0 ] end
Create the parser and initialize the rule set. rt is the RichText
object the resulting tree of RichTextElement
objects should belong to.
Calls superclass method
Public Instance Methods
Source
# File lib/taskjuggler/RichText/Parser.rb, line 76 def nextToken @scanner.nextToken end
Get the next token from the scanner.
Source
# File lib/taskjuggler/RichText/Parser.rb, line 68 def open(text) # Make sure that the last line is properly terminated with a newline. # Multiple newlines at the end are simply ignored. @scanner = RichTextScanner.new(text + "\n\n", Log) @scanner.open(true) end
Construct the parser and get ready to read.
Source
# File lib/taskjuggler/RichText/Parser.rb, line 81 def returnToken(token) @scanner.returnToken(token) end
Return the last fetch token again to the scanner.
Source
# File lib/taskjuggler/RichText/Parser.rb, line 58 def reuse(rti, sectionCounter = [ 0, 0, 0, 0], tokenSet = nil) @blockedVariables = {} @stack = nil @richTextI = rti @sectionCounter = sectionCounter limitTokenSet(tokenSet) end