$ cd ./examples/source-highlight-filter $ asciidoc source-highlight-filter.txt
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Source Code Highlight FilterThe AsciiDoc distribution includes a source code syntax highlight filter (source-highlight-filter.conf) which uses GNU source-highlight. GNU source-highlight generates nicely formatted source code for most common programming languages (see the examples below). InstallationAs a prerequisite you will have installed and tested GNU source-highlight. See Appendix A for Kubuntu installation. Now install the AsciiDoc filter:
DocBook Output Definition file
Source-highlight 2.2 does not ship with DocBook output definition files. If you want to generate DocBook instead of HTML the following simple DocBook output definition file will do the trick: extension "xml" bold "<emphasis role=\"strong\">$text</emphasis>" italics "<emphasis>$text</emphasis>" translations "&" "&" "<" "<" ">" ">" end To install it:
ExamplesExample: Python code snippet
This source-highlight filtered block: [python]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
''' A multi-line
comment.'''
def sub_word(mo):
''' Single line comment.'''
word = mo.group('word') # Inline comment
if word in keywords[language]:
return quote + word + quote
else:
return word
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Renders this highlighted source code: ''' A multi-line comment.''' def sub_word(mo): ''' Single line comment.''' word = mo.group('word') # Inline comment if word in keywords[language]: return quote + word + quote else: return word Example: Ruby code snippet with line numbering
This source-highlight filtered block: [ruby,numbered]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
#
# Useful Ruby base class extensions.
#
class Array
# Execute a block passing it corresponding items in
# +self+ and +other_array+.
# If self has less items than other_array it is repeated.
def cycle(other_array) # :yields: item, other_item
other_array.each_with_index do |item, index|
yield(self[index % self.length], item)
end
end
end
if $0 == __FILE__
# Array#cycle test
# true => 0
# false => 1
# true => 2
# false => 3
# true => 4
puts 'Array#cycle test'
[true, false].cycle([0, 1, 2, 3, 4]) do |a, b|
puts "#{a.inspect} => #{b.inspect}"
end
end
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Renders this highlighted source code: 00001: # 00002: # Useful Ruby base class tension's. 00003: # 00004: 00005: class Array 00006: 00007: # Execute a block passing it corresponding items in 00008: # +self+ and +other_array+. 00009: # If self has less items than other_array it is repeated. 00010: 00011: def cycle(other_array) # :yields: item, other_item 00012: other_array.each_with_index do |item, index| 00013: yield(self[index % self.length], item) 00014: end 00015: end 00016: 00017: end 00018: 00019: if $0 == __FILE__ 00020: # Array#cycle test 00021: # true => 0 00022: # false => 1 00023: # true => 2 00024: # false => 3 00025: # true => 4 00026: puts 'Array#cycle test' 00027: [true, false].cycle([0, 1, 2, 3, 4]) do |a, b| 00028: puts "#{a.inspect} => #{b.inspect}" 00029: end 00030: end Appendix A: Installing source-highlight 2.2 on Kubuntu 5.0.4The 5.0.4 repository only had the older version 1.6.3 so I downloaded version 2.2 source and compiled — but first had to install boost regular expression libraries: # apt-get install libboost-regex1.31.0 # apt-get install libboost-dev # apt-get install libboost-regex-dev # apt-get install exuberant-ctags Download, compile and install source-highlight: $ tar -xzf source-highlight-2.2.tar.gz $ cd source-highlight-2.2 $ ./configure $ make $ su # make install |