Sha256: 1bac7c52197e2afc511fbd67025a85a8e678898c56180325b35780704e37f106
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Versions: 39
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Contents
require 'processors/template_processor'
#Processes ERB templates
#(those ending in .html.erb or .rthml).
class ErbTemplateProcessor < TemplateProcessor
#s(:call, TARGET, :method, s(:arglist))
def process_call exp
target = exp[1]
if sexp? target
target = process target
end
method = exp[2]
#_erbout is the default output variable for erb
if target and target[1] == :_erbout
if method == :concat
@inside_concat = true
args = exp[3] = process(exp[3])
@inside_concat = false
if args.length > 2
raise Exception.new("Did not expect more than a single argument to _erbout.concat")
end
args = args[1]
if args.node_type == :call and args[2] == :to_s #erb always calls to_s on output
args = args[1]
end
if args.node_type == :str #ignore plain strings
ignore
else
s = Sexp.new :output, args
s.line(exp.line)
@current_template[:outputs] << s
s
end
elsif method == :force_encoding
ignore
else
abort "Unrecognized action on _erbout: #{method}"
end
elsif target == nil and method == :render
exp[3] = process(exp[3])
make_render exp
else
args = exp[3] = process(exp[3])
call = Sexp.new :call, target, method, args
call.line(exp.line)
call
end
end
#Process block, removing irrelevant expressions
def process_block exp
exp.shift
if @inside_concat
@inside_concat = false
exp[0..-2].each do |e|
process e
end
@inside_concat = true
process exp[-1]
else
exp.map! do |e|
res = process e
if res.empty? or res == ignore
nil
elsif sexp? res and res.node_type == :lvar and res[1] == :_erbout
nil
else
res
end
end
block = Sexp.new(:rlist).concat(exp).compact
block.line(exp.line)
block
end
end
end
Version data entries
39 entries across 39 versions & 2 rubygems