Class: OpenC3::ScriptEngine

Inherits:
Object show all
Defined in:
lib/openc3/script_engines/script_engine.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(running_script) ⇒ ScriptEngine

Returns a new instance of ScriptEngine.



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# File 'lib/openc3/script_engines/script_engine.rb', line 18

def initialize(running_script)
  @running_script = running_script
end

Instance Attribute Details

#running_script ⇒ Object

Returns the value of attribute running_script.



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# File 'lib/openc3/script_engines/script_engine.rb', line 16

def running_script
  @running_script
end

Instance Method Details

#debug(text) ⇒ Object 



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# File 'lib/openc3/script_engines/script_engine.rb', line 48

def debug(text)
  run_line(text, [text], "DEBUG", 1)
end

#mnemonic_check(text, filename: nil) ⇒ Object 



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# File 'lib/openc3/script_engines/script_engine.rb', line 57

def mnemonic_check(text, filename: nil)
  puts "Not Implemented"
  return 1
end

#run_line(line, lines, filename, line_no) ⇒ Object

Override this method in the subclass to implement the script engine



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# File 'lib/openc3/script_engines/script_engine.rb', line 23

def run_line(line, lines, filename, line_no)
  puts line
  return line_no + 1
end

#run_text(text, filename: nil, line_no: 1, end_line_no: nil, bind_variables: false) ⇒ Object 



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# File 'lib/openc3/script_engines/script_engine.rb', line 28

def run_text(text, filename: nil, line_no: 1, end_line_no: nil, bind_variables: false)
  lines = text.lines
  loop do
    line = lines[line_no - 1]
    return if line.nil?

    begin
      next_line_no = line_no + 1
      running_script.pre_line_instrumentation(filename, line_no)
      next_line_no = run_line(line, lines, filename, line_no)
      running_script.post_line_instrumentation(filename, line_no)
    rescue Exception => e
      retry if running_script.exception_instrumentation(e, filename, line_no)
    end

    line_no = next_line_no
    return if end_line_no and line_no > end_line_no
  end
end

#syntax_check(text, filename: nil) ⇒ Object 



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# File 'lib/openc3/script_engines/script_engine.rb', line 52

def syntax_check(text, filename: nil)
  puts "Not Implemented"
  return 1
end

#tokenizer(s, special_chars = '()><+-*/=;,') ⇒ Object 



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# File 'lib/openc3/script_engines/script_engine.rb', line 62

def tokenizer(s, special_chars = '()><+-*/=;,')
  result = []
  i = 0
  while i < s.length
    # Skip whitespace
    if s[i].match?(/\s/)
      i += 1
      next
    end

    # Handle quoted strings (single or double quotes)
    if ['"', "'"].include?(s[i])
      quote_char = s[i]
      quote_start = i
      i += 1
      # Find the closing quote
      while i < s.length
        if s[i] == '\\' && i + 1 < s.length  # Handle escaped characters
          i += 2
        elsif s[i] == quote_char  # Found closing quote
          i += 1
          break
        else
          i += 1
        end
      end
      # Include the quotes in the token
      result << s[quote_start...i]
      next
    end

    # Handle special characters
    if special_chars.include?(s[i])
      result << s[i]
      i += 1
      next
    end

    # Handle regular tokens
    token_start = i
    while i < s.length && !s[i].match?(/\s/) && !special_chars.include?(s[i]) && !['"', "'"].include?(s[i])
      i += 1
    end
    if i > token_start
      result << s[token_start...i]
    end
  end

  return result
end