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C++ preprocessor #if Indents [message #1720490]

Mon, 18 January 2016 17:35

Eclipse User

is there a way to make the auto styling feature of eclipse C/C++ IDE format preprocesors if statements like:

#ifdef ARDUINO
  #if ARDUINO < 100
    #include "WProgram.h"
  #else
    #include "Arduino.h"
  #endif

  #if defined(CORE_TEENSY) && defined(__MK20DX256__)
    #include <i2c_t3.h>
    #define BUFFER_LENGTH 32
  #elif I2CDEV_IMPLEMENTATION == I2CDEV_ARDUINO_WIRE
    #include <Wire.h>
  #endif
  #if I2CDEV_IMPLEMENTATION == I2CDEV_I2CMASTER_LIBRARY
    #include <I2C.h>
  #endif
#endif

instead of :

#ifdef ARDUINO
#if ARDUINO < 100
#include "WProgram.h"
#else
#include "Arduino.h"
#endif
#if defined(CORE_TEENSY) && defined(__MK20DX256__)
#include <i2c_t3.h>
#define BUFFER_LENGTH 32
#elif I2CDEV_IMPLEMENTATION == I2CDEV_ARDUINO_WIRE
#include <Wire.h>
#endif
#if I2CDEV_IMPLEMENTATION == I2CDEV_I2CMASTER_LIBRARY
#include <I2C.h>
#endif
#endif

Re: C++ preprocessor #if Indents [message #1720605 is a reply to message #1720490]

Tue, 19 January 2016 12:07

Eclipse User

Technically, the preprocessor stuff is another language. There doesn't seem to be a way to address indentation of processor statements in the formatter editing dialogs. You should submit an enhancement request. If you can't wait, either write an external code formatter (tun outside of Eclipse) or modify the CDT code.

You also might want to ponder this discussion: http://stackoverflow.com/questions/2975330/how-do-you-indent-preprocessor-statements

Re: C++ preprocessor #if Indents [message #1720617 is a reply to message #1720605]

Tue, 19 January 2016 15:22

Eclipse User

in a world where style is controlled and the code is adjusted to match it would be nice to enable the style to indent #if statements like if statements.

while #if might technically be a different language it is part of the C/C++ environment and as it is not a letter for letter match of any C/C++ current key words there is no reason that #if's can not be accommodated for in the styling.

if i knew where to modify the CDT code i would do just that.

Re: C++ preprocessor #if Indents [message #1720622 is a reply to message #1720617]

Tue, 19 January 2016 17:02

Eclipse User

You could download the CDT source. Likely, the formatter is part of it.
This what someone did for Java: http://www.peterfriese.de/formatting-your-code-using-the-eclipse-code-formatter/

You could configure an external tool which might be simpler. Here's how to use one in Eclipse:
http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.user%2Ftasks%2Ftasks-exttools-running.htm

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