| :ruby_no_lock | |
| puts 'This will go to wherever stdout is pointing' | |
| haml_concat 'This will go into the Haml output' |
| #!/usr/bin/env ruby | |
| #this should be in bin/ dir - gist doesn't allow directories anymore | |
| require 'haml' | |
| puts Haml::VERSION |
The forward slash character, when placed at the end of a tag definition, causes
Haml to treat it as being an empty (or void) element. Depending on the format,
the tag will be rendered either without a closing tag (:html4 or :html5), or
as a self-closing tag (:xhtml).
Taking the following as an example:
%br/
| <!doctype html> | |
| <title> </title> | |
| <p class="0"> |
Calling mark at end of scalar of interest produces something like:
{"line1"=>{"value"=>"line2", "line"=>4},
"line4"=>{"value"=>"line5\nline6\n", "line"=>7}}
Calling mark at end of previous scalar produces something like:
{"line1"=>{"value"=>"line2", "line"=>1},
"line4"=>{"value"=>"line5\nline6\n", "line"=>4}}
| # The relative letter frequencies in English. This is taken from Wikipedia | |
| # (https://en.wikipedia.org/wiki/Letter_frequency) and is based on the Concise | |
| # Oxford dictionary. | |
| ENGLISH_FREQ = [8.167, 1.492, 2.782, 4.253, 12.702, 2.228, 2.015, 6.094, 6.966, 0.153, 0.772, 4.025, 2.406, 6.749, 7.507, 1.929, 0.095, 5.987, 6.327, 9.056, 2.758, 0.978, 2.361, 0.150, 1.974, 0.074] | |
| # Reverse a shift of a single letter by another letter. | |
| # 65 is the ASCII value of `A`, so subtracting 65 from the letter's ord | |
| # value gives a number between 0-25, which we can then do arithmetic | |
| # modulo 26 on. | |
| def unshift(letter, shift_letter) |
| require 'rbnacl' | |
| # Libsodium provides "raw" ChaCha20, but it’s not in RbNaCl. We can work round that with | |
| # this little class. | |
| class ChaCha20Stream | |
| extend RbNaCl::Sodium | |
| sodium_function :get_stream, | |
| :crypto_stream_chacha20, | |
| %i[pointer ulong_long pointer pointer] |