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-# Copyright (c) 2006 Pluron Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining
-# a copy of this software and associated documentation files (the
-# "Software"), to deal in the Software without restriction, including
-# without limitation the rights to use, copy, modify, merge, publish,
-# distribute, sublicense, and/or sell copies of the Software, and to
-# permit persons to whom the Software is furnished to do so, subject to
-# the following conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-# The parser for the MediaWiki language.
-#
-# Usage together with a lexer:
-# inputFile = File.new("data/input1", "r")
-# input = inputFile.read
-# parser = MediaWikiParser.new
-# parser.lexer = MediaWikiLexer.new
-# parser.parse(input)
-
-class MediaWikiParser
-
-token TEXT BOLD_START BOLD_END ITALIC_START ITALIC_END LINK_START LINK_END LINKSEP
- INTLINK_START INTLINK_END INTLINKSEP RESOURCESEP CHAR_ENT
- PRE_START PRE_END PREINDENT_START PREINDENT_END
- SECTION_START SECTION_END HLINE SIGNATURE_NAME SIGNATURE_DATE SIGNATURE_FULL
- PARA_START PARA_END UL_START UL_END OL_START OL_END LI_START LI_END
- DL_START DL_END DT_START DT_END DD_START DD_END TAG_START TAG_END ATTR_NAME ATTR_VALUE
- TABLE_START TABLE_END ROW_START ROW_END HEAD_START HEAD_END CELL_START CELL_END
- KEYWORD TEMPLATE_START TEMPLATE_END CATEGORY PASTE_START PASTE_END
-
-
-rule
-
-wiki:
- repeated_contents
- {
- @nodes.push WikiAST.new(0, @wiki_ast_length)
- #@nodes.last.children.insert(0, val[0])
- #puts val[0]
- @nodes.last.children += val[0]
- }
- ;
-
-contents:
- text
- {
- result = val[0]
- }
- | bulleted_list
- {
- result = val[0]
- }
- | numbered_list
- {
- result = val[0]
- }
- | dictionary_list
- {
- list = ListAST.new(@ast_index, @ast_length)
- list.list_type = :Dictionary
- list.children = val[0]
- result = list
- }
- | preformatted
- {
- result = val[0]
- }
- | section
- {
- result = val[0]
- }
- | tag
- {
- result = val[0]
- }
- | template
- {
- result = val[0]
- }
- | KEYWORD
- {
- k = KeywordAST.new(@ast_index, @ast_length)
- k.text = val[0]
- result = k
- }
- | PARA_START para_contents PARA_END
- {
- p = ParagraphAST.new(@ast_index, @ast_length)
- p.children = val[1]
- result = p
- }
- | LINK_START link_contents LINK_END
- {
- l = LinkAST.new(@ast_index, @ast_length)
- l.link_type = val[0]
- l.url = val[1][0]
- l.children += val[1][1..-1] if val[1].length > 1
- result = l
- }
- | PASTE_START para_contents PASTE_END
- {
- p = PasteAST.new(@ast_index, @ast_length)
- p.children = val[1]
- result = p
- }
- | INTLINK_START TEXT RESOURCESEP TEXT reslink_repeated_contents INTLINK_END
- {
- l = ResourceLinkAST.new(@ast_index, @ast_length)
- l.prefix = val[1]
- l.locator = val[3]
- l.children = val[4] unless val[4].nil? or val[4].empty?
- result = l
- }
- | INTLINK_START TEXT intlink_repeated_contents INTLINK_END
- {
- l = InternalLinkAST.new(@ast_index, @ast_length)
- l.locator = val[1]
- l.children = val[2] unless val[2].nil? or val[2].empty?
- result = l
- }
- | INTLINK_START CATEGORY TEXT cat_sort_contents INTLINK_END
- {
- l = CategoryAST.new(@ast_index, @ast_length)
- l.locator = val[2]
- l.sort_as = val[3]
- result = l
- }
- | INTLINK_START RESOURCESEP CATEGORY TEXT intlink_repeated_contents INTLINK_END
- {
- l = CategoryLinkAST.new(@ast_index, @ast_length)
- l.locator = val[3]
- l.children = val[4] unless val[4].nil? or val[4].empty?
- result = l
- }
- | table
- ;
-
-para_contents:
- {
- result = nil
- }
- | repeated_contents
- {
- result = val[0]
- }
- ;
-
-tag:
- TAG_START tag_attributes TAG_END
- {
- if val[0] != val[2]
- raise Racc::ParseError.new("XHTML end tag #{val[2]} does not match start tag #{val[0]}")
- end
- elem = ElementAST.new(@ast_index, @ast_length)
- elem.name = val[0]
- elem.attributes = val[1]
- result = elem
- }
- | TAG_START tag_attributes repeated_contents TAG_END
- {
- if val[0] != val[3]
- raise Racc::ParseError.new("XHTML end tag #{val[3]} does not match start tag #{val[0]}")
- end
- elem = ElementAST.new(@ast_index, @ast_length)
- elem.name = val[0]
- elem.attributes = val[1]
- elem.children += val[2]
- result = elem
- }
- ;
-
-tag_attributes:
- {
- result = nil
- }
- | ATTR_NAME tag_attributes
- {
- attr_map = val[2] ? val[2] : {}
- attr_map[val[0]] = true
- result = attr_map
- }
- | ATTR_NAME ATTR_VALUE tag_attributes
- {
- attr_map = val[2] ? val[2] : {}
- attr_map[val[0]] = val[1]
- result = attr_map
- }
- ;
-
-
-link_contents:
- TEXT
- {
- result = val
- }
- | TEXT LINKSEP link_repeated_contents
- {
- result = [val[0]]
- result += val[2]
- }
- ;
-
-
-link_repeated_contents:
- repeated_contents
- {
- result = val[0]
- }
- | repeated_contents LINKSEP link_repeated_contents
- {
- result = val[0]
- result += val[2] if val[2]
- }
- ;
-
-
-intlink_repeated_contents:
- {
- result = nil
- }
- | INTLINKSEP repeated_contents
- {
- result = val[1]
- }
- ;
-
-cat_sort_contents:
- {
- result = nil
- }
- | INTLINKSEP TEXT
- {
- result = val[1]
- }
- ;
-
-reslink_repeated_contents:
- {
- result = nil
- }
- | INTLINKSEP reslink_repeated_contents
- {
- result = val[1]
- }
- | INTLINKSEP repeated_contents reslink_repeated_contents
- {
- i = InternalLinkItemAST.new(@ast_index, @ast_length)
- i.children = val[1]
- result = [i]
- result += val[2] if val[2]
- }
- ;
-
-repeated_contents: contents
- {
- result = []
- result << val[0]
- }
- | repeated_contents contents
- {
- result = []
- result += val[0]
- result << val[1]
- }
- ;
-
-text: element
- {
- p = TextAST.new(@ast_index, @ast_length)
- p.formatting = val[0][0]
- p.contents = val[0][1]
- result = p
- }
- | formatted_element
- {
- result = val[0]
- }
- ;
-
-table:
- TABLE_START table_contents TABLE_END
- {
- table = TableAST.new(@ast_index, @ast_length)
- table.children = val[1] unless val[1].nil? or val[1].empty?
- result = table
- }
- | TABLE_START TEXT table_contents TABLE_END
- {
- table = TableAST.new(@ast_index, @ast_length)
- table.options = val[1]
- table.children = val[2] unless val[2].nil? or val[2].empty?
- result = table
- }
-
-table_contents:
- {
- result = nil
- }
- | ROW_START row_contents ROW_END table_contents
- {
- row = TableRowAST.new(@ast_index, @ast_length)
- row.children = val[1] unless val[1].nil? or val[1].empty?
- result = [row]
- result += val[3] unless val[3].nil? or val[3].empty?
- }
- | ROW_START TEXT row_contents ROW_END table_contents
- {
- row = TableRowAST.new(@ast_index, @ast_length)
- row.children = val[2] unless val[2].nil? or val[2].empty?
- row.options = val[1]
- result = [row]
- result += val[4] unless val[4].nil? or val[4].empty?
- }
-
-row_contents:
- {
- result = nil
- }
- | HEAD_START HEAD_END row_contents
- {
- cell = TableCellAST.new(@ast_index, @ast_length)
- cell.type = :head
- result = [cell]
- result += val[2] unless val[2].nil? or val[2].empty?
- }
- | HEAD_START repeated_contents HEAD_END row_contents
- {
- cell = TableCellAST.new(@ast_index, @ast_length)
- cell.children = val[1] unless val[1].nil? or val[1].empty?
- cell.type = :head
- result = [cell]
- result += val[3] unless val[3].nil? or val[3].empty?
- }
- | CELL_START CELL_END row_contents
- {
- cell = TableCellAST.new(@ast_index, @ast_length)
- cell.type = :body
- result = [cell]
- result += val[2] unless val[2].nil? or val[2].empty?
- }
- | CELL_START repeated_contents CELL_END row_contents
- {
- if val[2] == 'attributes'
- result = []
- else
- cell = TableCellAST.new(@ast_index, @ast_length)
- cell.children = val[1] unless val[1].nil? or val[1].empty?
- cell.type = :body
- result = [cell]
- end
- result += val[3] unless val[3].nil? or val[3].empty?
- if val[2] == 'attributes' and val[3] and val[3].first.class == TableCellAST
- val[3].first.attributes = val[1]
- end
- result
- }
-
-
-element:
- TEXT
- { return [:None, val[0]] }
- | HLINE
- { return [:HLine, val[0]] }
- | CHAR_ENT
- { return [:CharacterEntity, val[0]] }
- | SIGNATURE_DATE
- { return [:SignatureDate, val[0]] }
- | SIGNATURE_NAME
- { return [:SignatureName, val[0]] }
- | SIGNATURE_FULL
- { return [:SignatureFull, val[0]] }
- ;
-
-formatted_element:
- BOLD_START BOLD_END
- {
- result = FormattedAST.new(@ast_index, @ast_length)
- result.formatting = :Bold
- result
- }
- | ITALIC_START ITALIC_END
- {
- result = FormattedAST.new(@ast_index, @ast_length)
- result.formatting = :Italic
- result
- }
- | BOLD_START repeated_contents BOLD_END
- {
- p = FormattedAST.new(@ast_index, @ast_length)
- p.formatting = :Bold
- p.children += val[1]
- result = p
- }
- | ITALIC_START repeated_contents ITALIC_END
- {
- p = FormattedAST.new(@ast_index, @ast_length)
- p.formatting = :Italic
- p.children += val[1]
- result = p
- }
- ;
-
-bulleted_list: UL_START list_item list_contents UL_END
- {
- list = ListAST.new(@ast_index, @ast_length)
- list.list_type = :Bulleted
- list.children << val[1]
- list.children += val[2]
- result = list
- }
- ;
-
-numbered_list: OL_START list_item list_contents OL_END
- {
- list = ListAST.new(@ast_index, @ast_length)
- list.list_type = :Numbered
- list.children << val[1]
- list.children += val[2]
- result = list
- }
- ;
-
-list_contents:
- { result = [] }
- list_item list_contents
- {
- result << val[1]
- result += val[2]
- }
- |
- { result = [] }
- ;
-
-list_item:
- LI_START LI_END
- {
- result = ListItemAST.new(@ast_index, @ast_length)
- }
- | LI_START repeated_contents LI_END
- {
- li = ListItemAST.new(@ast_index, @ast_length)
- li.children += val[1]
- result = li
- }
- ;
-
-dictionary_list:
- DL_START dictionary_term dictionary_contents DL_END
- {
- result = [val[1]]
- result += val[2]
- }
- | DL_START dictionary_contents DL_END
- {
- result = val[1]
- }
- ;
-
-dictionary_term:
- DT_START DT_END
- {
- result = ListTermAST.new(@ast_index, @ast_length)
- }
- | DT_START repeated_contents DT_END
- {
- term = ListTermAST.new(@ast_index, @ast_length)
- term.children += val[1]
- result = term
- }
-
-dictionary_contents:
- dictionary_definition dictionary_contents
- {
- result = [val[0]]
- result += val[1] if val[1]
- }
- |
- {
- result = []
- }
-
-dictionary_definition:
- DD_START DD_END
- {
- result = ListDefinitionAST.new(@ast_index, @ast_length)
- }
- | DD_START repeated_contents DD_END
- {
- term = ListDefinitionAST.new(@ast_index, @ast_length)
- term.children += val[1]
- result = term
- }
-
-preformatted: PRE_START repeated_contents PRE_END
- {
- p = PreformattedAST.new(@ast_index, @ast_length)
- p.children += val[1]
- result = p
- }
- | PREINDENT_START repeated_contents PREINDENT_END
- {
- p = PreformattedAST.new(@ast_index, @ast_length)
- p.indented = true
- p.children += val[1]
- result = p
- }
- ;
-
-section: SECTION_START repeated_contents SECTION_END
- { result = [val[1], val[0].length]
- s = SectionAST.new(@ast_index, @ast_length)
- s.children = val[1]
- s.level = val[0].length
- result = s
- }
- ;
-
-template: TEMPLATE_START TEXT template_parameters TEMPLATE_END
- {
- t = TemplateAST.new(@ast_index, @ast_length)
- t.template_name = val[1]
- t.children = val[2] unless val[2].nil? or val[2].empty?
- result = t
- }
- ;
-
-template_parameters:
- {
- result = nil
- }
- | INTLINKSEP TEXT template_parameters
- {
- p = TemplateParameterAST.new(@ast_index, @ast_length)
- p.parameter_value = val[1]
- result = [p]
- result += val[2] if val[2]
- }
- | INTLINKSEP template template_parameters
- {
- p = TemplateParameterAST.new(@ast_index, @ast_length)
- p.children << val[1]
- result = [p]
- result += val[2] if val[2]
- }
- ;
-
-end
-
----- header ----
-require 'mediacloth/mediawikiast'
-
----- inner ----
-
-attr_accessor :lexer
-
-def initialize
- @nodes = []
- @context = []
- @wiki_ast_length = 0
- super
-end
-
-#Tokenizes input string and parses it.
-def parse(input)
- @yydebug=true
- lexer.tokenize(input)
- do_parse
- return @nodes.last
-end
-
-#Asks the lexer to return the next token.
-def next_token
- token = @lexer.lex
- if token[0].to_s.upcase.include? "_START"
- @context << token[2..3]
- elsif token[0].to_s.upcase.include? "_END"
- @ast_index = @context.last[0]
- @ast_length = token[2] + token[3] - @context.last[0]
- @context.pop
- else
- @ast_index = token[2]
- @ast_length = token[3]
- end
-
- @wiki_ast_length += token[3]
-
- return token[0..1]
-end
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-22 12:00:27 +0000