Created
May 23, 2011 05:24
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basic eRuby implementation
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| #!/usr/bin/ruby | |
| # via [ruby-list:48093] | |
| def eRuby(eruby_source) | |
| source = eruby_source | |
| ruby = '' | |
| loop do | |
| break if source.empty? | |
| if source=~/<%=/m | |
| text = $` | |
| if text != "" | |
| ruby << "print(#{text.dump})\n" | |
| end | |
| source = $' | |
| if source=~/%>/m | |
| code = $` | |
| if code != "" | |
| ruby << "print(#{code})\n" | |
| end | |
| source=$' | |
| next | |
| else | |
| raise "<%= unmatch error" | |
| end | |
| end | |
| if source=~/<%/m | |
| text = $` | |
| if text != "" | |
| ruby << "print(#{text.dump})\n" | |
| end | |
| source = $' | |
| if source=~/%>/m | |
| code = $` | |
| if code != "" | |
| ruby << code << "\n" | |
| end | |
| source=$' | |
| next | |
| else | |
| raise "<% unmatch error" | |
| end | |
| end | |
| ruby << "print(#{source.dump})\n" | |
| break | |
| end | |
| ruby | |
| end | |
| if $0==__FILE__ | |
| print eRuby(STDIN.read) | |
| end |
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