Class: Como::RuleDisplay

Inherits:

ComoCommon

• Object
• ComoCommon
• Como::RuleDisplay

show all

Defined in:

lib/como.rb

Overview

RuleDisplay.new.evalAndDisplay( &rule )

Example expansion of options:

   |--# One of:
   |     |--# Adding in order:
   |     |     |--<gcov>
   |     |     |--<exclude>
   |     |     |--<refreshed>
   |     |--<manifest>
   |     |--<pairs>
   |     |--<files>

Class Method Summary (collapse)

• + (Object) print(prefixStr = " ", &rule)

  Eval rules to get an nested array and then display it.

Instance Method Summary (collapse)

• - (Object) addPrefix(str)

  Increase prefix string.

• - (Object) all(*args)

  All are given.

• - (Object) any(*args)

  At least one is given.

• - (Object) evalAndDisplay(&rule)
• - (Object) follow(*args)

  Incremental options in order i.e.

• - (Object) incr(*args)

  Incremental options in order i.e.

• - (RuleDisplay) initialize(prefixStr) constructor

  A new instance of RuleDisplay.

• - (Object) inv(*args)

  Logical inversion.

• - (Object) meh(*args)

  Dont care.

• - (Object) none

  Special condition where no arguments are given.

• - (Object) one(*args)

  One of list given.

• - (Object) p(str)

  Print prefix + str.

• - (Object) printRule(arr)

  Recursively go through the nested array of rule items and print out rules.

• - (Object) rmPrefix(item)

  Remove from prefix (either str or length ).

Methods inherited from ComoCommon

getIo, setIo

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# File 'lib/como.rb', line 1981

def initialize( prefixStr )
    # Prefix string for lines. Rules add/rm from it.
    @prefixStr = prefixStr
end

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# File 'lib/como.rb', line 1976

def RuleDisplay.print( prefixStr = "    ", &rule )
    rd = RuleDisplay.new( prefixStr )
    rd.evalAndDisplay( &rule )
end

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# File 'lib/como.rb', line 1991

def addPrefix( str )
    @prefixStr += str
end

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# File 'lib/como.rb', line 2055

def all( *args )
    [ "All of", *args ]
end

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# File 'lib/como.rb', line 2050

def any( *args )
    [ "One or more of", *args ]
end

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# File 'lib/como.rb', line 1986

def evalAndDisplay( &rule )
    printRule( instance_eval( &rule ) )
end

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# File 'lib/como.rb', line 2040

def follow( *args )
    [ "If first then rest", *args ]
end

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# File 'lib/como.rb', line 2034

def incr( *args )
    [ "Adding in order", *args ]
end

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# File 'lib/como.rb', line 2060

def inv( *args )
    [ "Not", *args ]
end

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# File 'lib/como.rb', line 2065

def meh( *args )
    [ "Ignoring", *args ]
end

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# File 'lib/como.rb', line 2028

def none
    [ "NONE" ]
end

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# File 'lib/como.rb', line 2045

def one( *args )
    [ "One of", *args ]
end

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# File 'lib/como.rb', line 2006

def p( str )
    @@io.puts( @prefixStr + str )
end

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# File 'lib/como.rb', line 2012

def printRule( arr )
    p( "|--# #{arr[0]}:" )
    item = "|     "
    addPrefix( item )

    arr[1..-1].each do |i|
        if i.class == Array
            printRule( i )
        else
            p( "|--<#{i}>" )
        end
    end
    rmPrefix( item )
end

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# File 'lib/como.rb', line 1996

def rmPrefix( item )
    if item.class == String
        cnt = item.length
    else
        cnt = item
    end
    @prefixStr = @prefixStr[0..-(cnt+1)]
end