Class: BlockReader

Inherits:
Object
  • Object
show all
Includes:
LogUtils::Logging
Defined in:
lib/textutils/reader/block_reader.rb

Overview

fix: move into TextUtils namespace/module!!

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(text) ⇒ BlockReader

Returns a new instance of BlockReader.



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# File 'lib/textutils/reader/block_reader.rb', line 21

def initialize( text )
  @text = text
end

Class Method Details

.from_file(path) ⇒ Object 



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# File 'lib/textutils/reader/block_reader.rb', line 10

def self.from_file( path )
  ## nb: assume/enfore utf-8 encoding (with or without BOM - byte order mark)
  ## - see textutils/utils.rb
 text = File.read_utf8( path )
 self.from_string( text )
end

.from_string(text) ⇒ Object 



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# File 'lib/textutils/reader/block_reader.rb', line 17

def self.from_string( text )
  self.new( text )
end

Instance Method Details

#read ⇒ Object 



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# File 'lib/textutils/reader/block_reader.rb', line 25

def read
  ## note returns an array of (line) strings e.g.
  ## [
  ##  "line1\nline2",         ## -- block1
  ##  "line1\nline2\nline3"   ## -- block2
  ## ]

  blocks = []
  buf = ""

  @text.each_line do |line|
     # comments allow:
     # 1) ##### (shell/ruby style)
     if line =~ /^\s*#/ 
        # skip komments and do NOT copy to result (keep comments secret!)
       logger.debug 'skipping comment line'
       next
     end

#       if line =~ /^\s*$/
#         # kommentar oder leerzeile überspringen
#         logger.debug 'skipping blank line'
#         next
#       end

     # pass 2) remove leading and trailing whitespace
     line = line.strip

     if line =~ /^-{3,}$/   ## three or more lines
       logger.debug 'block separator'
       blocks << buf.strip   ## note: strip leading and trailing whitespace
       buf = ""
     else
       buf << "#{line}\n"
     end
  end # each lines

  blocks << buf.strip ## note: strip leading and trailing whitespace
  blocks
end