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#nlt(viewname, sub = {}, opt = {}) ⇒ Object 



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# File 'lib/nolate.rb', line 123

def nlt(viewname, sub={}, opt={})
    viewname = "#{viewname}.nlt" if viewname.is_a?(Symbol)
    unless nlt_templates[viewname]
        filename = "views/#{viewname}"
        raise "NOLATE error: no template at #{filename}" \
            unless File.exists?(filename)
        nlt_templates[viewname] = nlt_compile(File.read(filename))
    end
    nlt_eval(nlt_templates[viewname], sub, opt, "views/#{viewname}")
end

#nlt_compile(template) ⇒ Object 



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# File 'lib/nolate.rb', line 77

def nlt_compile(template)
    s = "__=[]; "
    nlt_parse(template).each do |action, param, newlines|
        if action == :evalo or action == :eval
            if param[(-1..-1)] != "\n" and param.index("#")
                lines = param.split("\n")
                if lines[-1] =~ /^ *#/
                    lines[-1] = ""
                    param = lines.join("\n")
                end
            end
        end
        case action
            when :evalo then s << "@__ = (#{param}); __<< @__.to_s; @__; "
            when :eval  then s << "#{param}; "
            when :sub   then s << "__<< __sub[#{param.to_sym.inspect}]; @__; "
            when :verb  then s << "__<<#{param}; @__; "
        end
        s << "\n"*newlines
    end
    s << "\n__.join"
end

#nlt_empty_binding(__sub_) ⇒ Object

NOLATE, A NO LAme TEmplate system

Please read the README file for more information

Copyright © 2011, Salvatore Sanfilippo <antirez at gmail dot com>

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

*  Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

*  Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.



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# File 'lib/nolate.rb', line 33

def nlt_empty_binding(__sub_)
    __sub = __sub_
    return binding()
end

#nlt_eval(code, sub = {}, opt = {}, file = "evaluated_string") ⇒ Object 



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# File 'lib/nolate.rb', line 100

def nlt_eval(code, sub = {}, opt = {}, file="evaluated_string")
    # Make sure that nested calls will not substitute the layout
    saved = @nolate_no_layout
    @nolate_no_layout = true
    content = eval(code, nlt_empty_binding(sub), file, 1)
    @nolate_no_layout = saved

    # And... make sure that the layout will not trigger an infinite recursion
    # substituting itself forever.
    if $nolate_layout and !@nolate_no_layout and !(opt[:layout] == false)
        saved = $nolate_layout
        if !opt[:layout]
            use = $nolate_layout
        else
            use = opt[:layout]
        end
        $nolate_layout = nil
        content = nlt(use,{:content => content})
        $nolate_layout = saved
    end
    content
end

#nlt_flush_templates ⇒ Object 



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# File 'lib/nolate.rb', line 42

def nlt_flush_templates
    $nolate_templates = {}
end

#nlt_parse(str) ⇒ Object 



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# File 'lib/nolate.rb', line 50

def nlt_parse(str)
    i = -1  # I wish I had map.with_index in 1.8 :(
    prev_was_eval = false # Previous token was an :eval?
    str.split(/<%(.*?)%>/m).map do |s|
        i, first_char = i + 1, s[0..0]
        newlines = s.count("\n")
        if i % 2 == 0
            j = 0
            if prev_was_eval and s != "\n" and s != "\r\n"
                j += 1 if s[j..j] == "\r"
                j += 1 if s[j..j] == "\n"
            end
            prev_was_eval = false
            [:verb, s[j..-1].inspect, newlines]
        elsif first_char == "="
            prev_was_eval = false
            [:evalo, s[1..-1], newlines]
        elsif first_char == "#"
            prev_was_eval = false
            [:sub,   s[1..-1].to_sym, newlines]
        else
            prev_was_eval = true
            [:eval,  s, 0]
        end
    end
end

#nlt_set_layout(layout) ⇒ Object 



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# File 'lib/nolate.rb', line 46

def nlt_set_layout(layout)
    $nolate_layout = layout
end

#nlt_templates ⇒ Object 



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# File 'lib/nolate.rb', line 38

def nlt_templates
    $nolate_templates ||= {}
end

#nolate(str, sub = {}, opt = {}) ⇒ Object 



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# File 'lib/nolate.rb', line 134

def nolate(str, sub={}, opt={})
    nlt_eval(nlt_compile(str), sub, opt)
end