сгенерированный код не является отступ

Question

Я модифицирую масляный файл, используя скрипт python. Я написал грамматику EBNF, чтобы преобразовать нефтяной файл в AST с помощью Grako. И сгенерируйте нефтяной файл из AST с помощью codegen, но файл Oil не является отступом (сгенерируйте в одной строке).

Пример файл масло:

CPU dummy 
{ 
    OS StdOS 
    { 
     SCALABILITYCLASS = SC1; 
     STATUS = EXTENDED; 
    }; 
}; 

Сформировано масло:

CPUdummy{OSStdOS{SCALABILITYCLASS=SC1;STATUS=EXTENDED;};}; 

EBNF грамматика: файла = [{Comments_option}] OIL_version Включает [implementation_definition] application_definition {object_definition_list};

Includes 
     = "#include" include_name ; 

include_name 
     = ?/[!-_A-Za-z0-9]+/? ; 

OIL_version 
     = "OIL_VERSION" "=" version description ";" ; 

version = '"' ver '"'; 

implementation_definition 
     = "IMPLEMENTATION" name "{" implementation_spec_list "}" description ";"; 

implementation_spec_list 
     = [implementation_spec] ; 

implementation_spec 
     = object "{" implementation_def "}" description ";"; 

object = "OS" 
      "TASK" 
      "COUNTER" 
      "ALARM" 
      "RESOURCE" 
      "EVENT" 
      "ISR" 
      "MESSAGE" 
      "COM" 
      "NM" 
      "APPMODE" 
      "IPDU" 
      "APPLICATION"; 

implementation_list 
     = [implementation_def] 
     | [implementation_list implementation_def] ; 

implementation_def 
     = impl_attr_def 
      | impl_ref_def; 

impl_attr_def 
     = "UINT32" auto_specifier number_range attribute_name multiple_specifier default_number description ";" 
     | ("INT32" | "UINT64" | "INT64") auto_specifier number_range attribute_name multiple_specifier default_number description ";" 
     | "FLOAT" auto_specifier float_range attribute_name multiple_specifier default_float description ";" 
     | "ENUM" auto_specifier enumeration attribute_name multiple_specifier default_name description ";" 
     | "STRING" auto_specifier attribute_name multiple_specifier default_string description ";" 
     | "BOOLEAN" auto_specifier bool_values attribute_name multiple_specifier default_bool description ";" ; 

impl_parameter_list 
     = [("{" {implementation_def} [implementation_def] "}")] ; 

auto_specifier 
     = ["WITH_AUTO"]; 

number_range 
     = [("[" (number ".." | (number)) number "]")]; 

number_list 
     = number 
     | number_list "," number ; 

default_number 
     = [("=" (number | "NO_DEFAULT" | "AUTO"))]; 

description 
     = [(":" '"' comments '"')] ; 

float_range 
     = [("[" float ".." float "]")] ; 

default_float 
     = [("=" (float | "NO_DEFAULT" | "AUTO"))] ; 

enumeration 
     = "[" enumerator_list "]"; 

enumerator_list 
     = enumerator 
     | enumerator_list "," enumerator ; 

enumerator 
     = name [impl_parameter_list] description; 

bool_values 
     = [("[" "TRUE" impl_parameter_list description "," "FALSE" impl_parameter_list description "]")] ; 

default_name 
     = [("=" (name | "NO_DEFAULT" | "AUTO"))] ; 

default_string 
     = [("=" (string | "NO_DEFAULT" | "AUTO"))] ; 

default_bool 
     = [("=" (boolean | "NO_DEFAULT" | "AUTO"))] ; 

impl_ref_def 
     = object_ref_type reference_name multiple_specifier description ";"; 

object_ref_type 
     = "OS_TYPE" 
      | "TASK_TYPE" 
      | "COUNTER_TYPE" 
      | "ALARM_TYPE" 
      | "RESOURCE_TYPE" 
      | "EVENT_TYPE" 
      | "ISR_TYPE" 
      | "MESSAGE_TYPE" 
      | "COM_TYPE" 
      | "NM_TYPE" 
      | "APPMODE_TYPE" 
      | "IPDU_TYPE"; 

reference_name 
     = name 
      | object; 

multiple_specifier 
     = [("[" "]")] ; 

application_definition 
     = "CPU" name "{" [Includes] { (parameter_list Comments_option) } "}" description ";" ; 

object_definition_list 
     = [object_definition]; 

Comment_list 
     = object_definition | parameter comments ; 

object_definition 
     = object_name "{" { parameter_list Comments_option } "}" description ";" ; 

object_name 
     = object name; 

parameter_list 
     = [parameter]; 

parameter 
     = attribute_name "=" attribute_value [ "{" { (parameter [Comments_option]) } "}" ] description ";" ; 

attribute_name 
     = name 
      | object; 

attribute_value 
     = boolean 
      | float 
      | number 
      | string 
      | "AUTO" 
      | '"' string '"'; 

Comments_option 
     = (Single_line Multi_line); 

Single_line = {"//" comments}; 

Multi_line = {"/*@*" Comment_list "*@*/"}; 

name  = ?/[-_A-Za-z0-9]+/?; 

string = ?/[-_A-Za-z0-9_*, ]+/?; 

ver  = ?/[0-9.0-9]+/?; 

comments = ?/[-_A-Za-z0-9 *@]+/? ; 

boolean = "FALSE" 
      | "TRUE"; 

number = dec_number 
      | hex_number; 

dec_number 
     = sign int_digits; 

sign  = [("+" | "-")] ; 

int_digits 
     = zero_digit 
      | pos_digit 
      | pos_digit dec_digits ; 

dec_digits 
     = {dec_digit} [dec_digit] ; 

float = ver; 

exponent = [(("e" | "E") sign dec_digits)] ; 

zero_digit 
     = "0"; 

pos_digit 
     = "1" 
      | "2" 
      | "3" 
      | "4" 
      | "5" 
      | "6" 
      | "7" 
      | "8" 
      | "9"; 

dec_digit 
     = zero_digit 
      | pos_digit; 

hex_number 
     = "0x" {hex_digit}; 

hex_digit 
     = "A" 
      | "B" 
      | "C" 
      | "D" 
      | "E" 
      | "F" 
      | "a" 
      | "b" 
      | "c" 
      | "d" 
      | "e" 
      | "f" 
      | "0" 
      | "1" 
      | "2" 
      | "3" 
      | "4" 
      | "5" 
      | "6" 
      | "7" 
      | "8" 
      | "9"; 

Для вдавливания грако следует позаботиться или кожеген. Как вставить сгенерированный код. Благодарю.

Answer 1

import json 
from grako.util import asjson 

print(json.dumps(asjson(myast), indent=4))