Class: Writecast::Document

Inherits:
Object
  • Object
show all
Defined in:
lib/writecast/models.rb

Overview

represents a document; either a post or a page.

Direct Known Subclasses

Index, Page, Post

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file_path) ⇒ Document

Returns a new instance of Document.



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# File 'lib/writecast/models.rb', line 13

def initialize(file_path)
    doc_string = IO.read(file_path)
    @raw_file_path = file_path

    if doc_string =~ /(\A---\n(.*)---\n)?(.*)/m
        doc_header = ($2 ? YAML.load($2) : {}) || {}
        summary,body = $3.split("\n\n",2)
    else
        raise ArgumentError, "Parse error in #{file_path}."
    end

    file_basename = File.basename(file_path)

    @title = doc_header['title'] || file_basename.chomp(File.extname(file_path))
    @time = doc_header['time'] || File.stat(file_path).mtime
    @tags = doc_header['tags']

    if summary
        # the first regex matches kramdown image syntax, and stores two backreferences
        # the second just matches the syntax
        image_regex_select = /(!\[.*\]\()(.*)\)/
        image_regex = /!\[.*\]\(.*\)/

        # swap all relative image paths with absolute paths
        image_swaps = {}
        summary.scan(image_regex_select).zip(summary.scan(image_regex)) do |ab,image_match|
            a,b = ab
            image_swaps[image_match] = "#{a}/#{"%04d" % @time.year}/" +
            "#{"%02d" % @time.month}/#{file_basename}_static/" +
            "#{File.basename(b)})"
        end
        @summary = summary.gsub(image_regex, image_swaps).chomp
    else
        @summary = ''
    end

    @body = body ? body.chomp : ''
end

Instance Attribute Details

#body ⇒ Object (readonly)

Returns the value of attribute body.



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# File 'lib/writecast/models.rb', line 11

def body
  @body
end

#file_path ⇒ Object (readonly)

Returns the value of attribute file_path.



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# File 'lib/writecast/models.rb', line 11

def file_path
  @file_path
end

#link_path ⇒ Object (readonly)

Returns the value of attribute link_path.



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# File 'lib/writecast/models.rb', line 11

def link_path
  @link_path
end

#raw_file_path ⇒ Object (readonly)

Returns the value of attribute raw_file_path.



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# File 'lib/writecast/models.rb', line 11

def raw_file_path
  @raw_file_path
end

#summary ⇒ Object (readonly)

Returns the value of attribute summary.



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# File 'lib/writecast/models.rb', line 11

def summary
  @summary
end

#tags ⇒ Object (readonly)

Returns the value of attribute tags.



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# File 'lib/writecast/models.rb', line 11

def tags
  @tags
end

#time ⇒ Object (readonly)

Returns the value of attribute time.



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# File 'lib/writecast/models.rb', line 11

def time
  @time
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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# File 'lib/writecast/models.rb', line 11

def title
  @title
end