class ActionView::Template::Handlers::ERB

match (i.e. if the current token is a single space character).
the current token from looping past the next token if they both
a match for the current token has been found. This is to prevent
Prioritize matching the next token over the current token once

c. Otherwise: Advance 1 byte
b. If A: test error_column or advance scanner.
a. If B: start over with next token set (B, C).
2. Find a match for B or A:
1. Find a match for A: test error_column or advance scanner.
For example, if we want to find tokens A, B, C, we do the following:

a match of the first token before matching either token.
Iterate consecutive pairs of CODE or TEXT tokens, requiring

original source template.
contains the error_column, then return the offset compared to the
Find which token in the source template spans the byte range that

def find_offset(compiled, source_tokens, error_column)
  compiled = StringScanner.new(compiled)
  offset_source_tokens(source_tokens).each_cons(2) do |(name, str, offset), (_, next_str, _)|
    matched_str = false
    until compiled.eos?
      if matched_str && next_str && compiled.match?(next_str)
        break
      elsif compiled.match?(str)
        matched_str = true
        if name == :CODE && compiled.pos <= error_column && compiled.pos + str.bytesize >= error_column
          return compiled.pos - offset
        end
        compiled.pos += str.bytesize
      else
        compiled.pos += 1
      end
    end
  end
  raise LocationParsingError, "Couldn't find code snippet"
end