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iconv: conversion from X-UNKNOWN unsupported #50

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zemanel opened this issue Dec 3, 2015 · 6 comments
Closed

iconv: conversion from X-UNKNOWN unsupported #50

zemanel opened this issue Dec 3, 2015 · 6 comments

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@zemanel
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zemanel commented Dec 3, 2015

Checked out the latest version but i get this error when running $ rdmd dfeed

<...>
NNTP-Downloader: 2408 messages in group digitalmars.D.ldc.
NNTP-Downloader: < ARTICLE 1133
NNTP-Downloader: > 211 29502 1 29714 D
NNTP-Downloader: < ARTICLE 1134
NNTP-Downloader: > 220 1071 <Pine.GSO.4.02.10108300533040.9049-100000@elf.comlab> article
NNTP-Downloader: > Path: digitalmars.com!elf.comlab!yqz
NNTP-Downloader: > From: Yu Qian Zhou <yqz@comlab.ox.ac.uk>
NNTP-Downloader: > Newsgroups: D
NNTP-Downloader: > Subject: How to avoid code duplication in D? MI/CI/delegation/C&P?
NNTP-Downloader: > Date: Thu, 30 Aug 2001 06:06:50 +0100
NNTP-Downloader: > Organization: Digital Mars
NNTP-Downloader: > Lines: 125
NNTP-Downloader: > Sender: yqz@elf.comlab
NNTP-Downloader: > Message-ID: <Pine.GSO.4.02.10108300533040.9049-100000@elf.comlab>
NNTP-Downloader: > Mime-Version: 1.0
NNTP-Downloader: > Content-Type: TEXT/PLAIN; charset=X-UNKNOWN
NNTP-Downloader: > Content-Transfer-Encoding: QUOTED-PRINTABLE
NNTP-Downloader: > X-Trace: digitaldaemon.com 999147976 26341 163.1.27.82 (30 Aug 2001 05:06:16 GMT)
NNTP-Downloader: > X-Complaints-To: usenet@digitalmars.com
NNTP-Downloader: > NNTP-Posting-Date: Thu, 30 Aug 2001 05:06:16 +0000 (UTC)
NNTP-Downloader: > In-Reply-To: <9mkd19$mt6$2@digitaldaemon.com>
NNTP-Downloader: > Xref: digitalmars.com D:1071
NNTP-Downloader: >
NNTP-Downloader: >
NNTP-Downloader: > Admittedly Java's single inheritance is easy to implement, and simple to
NNTP-Downloader: > use.  But it does have some defect which sometimes force a programmer to
NNTP-Downloader: > duplicate code by 'copy & paste':
NNTP-Downloader: >
NNTP-Downloader: > Suppose I have two classes 'Car' and 'Dog', which *have already inherited*
NNTP-Downloader: > from some more important classes 'Vehicle' and 'Animal' respectively
NNTP-Downloader: > (let's assume that 'Vehicle' and 'Dog' do not have a common modifiable
NNTP-Downloader: > ancestor); now I want both these two classes to implement another
NNTP-Downloader: > interface 'Idable', how can I do it?
NNTP-Downloader: >
NNTP-Downloader: > Answer:
NNTP-Downloader: > =09  Java: Copy & Paste,               code duplication !!!
NNTP-Downloader: > =09   C++: Multiple inheritance,    no code duplication
NNTP-Downloader: > =09   C++: Textual code inclusion,  no code duplication
NNTP-Downloader: > =09Eiffel: Multiple inheritance,    no code duplication
NNTP-Downloader: > =09Sather: Semantic code inclusion, no code duplication
NNTP-Downloader: >           Kiev: MI by delegation,        no code duplication
NNTP-Downloader: >
NNTP-Downloader: > so what's the solution D can provide?
NNTP-Downloader: >
NNTP-Downloader: > =09     D: ???                         code duplication ???
NNTP-Downloader: >
NNTP-Downloader: > D borrowed DbC from Eiffel, perhaps it also worth to check the multiple
NNTP-Downloader: > inheritance mechanism of Eiffel, which is much cleaner than C++ (by
NNTP-Downloader: > renaming and redefinition).
NNTP-Downloader: >
NNTP-Downloader: > Or if you still feel strongly against MI, maybe you can also consider
NNTP-Downloader: > Sather's semantic code inclusion, or Kiev's forward-able delegation?
NNTP-Downloader: >
NNTP-Downloader: > Let me know your thoughts on this.
NNTP-Downloader: >
NNTP-Downloader: > YuQian
NNTP-Downloader: >
NNTP-Downloader: >
NNTP-Downloader: > Sample code:
NNTP-Downloader: > /***********************************************************************
NNTP-Downloader: >   Java: Copy & Paste, code duplication
NNTP-Downloader: > ***********************************************************************/
NNTP-Downloader: > interface Idable
NNTP-Downloader: > {
NNTP-Downloader: >   public   void setId(int i);
NNTP-Downloader: >   public   void getId();
NNTP-Downloader: > }
NNTP-Downloader: >
NNTP-Downloader: > class      Car
NNTP-Downloader: > extends    Vehicle
NNTP-Downloader: > implements Idable
NNTP-Downloader: > {
NNTP-Downloader: >   private  int id;
NNTP-Downloader: >   public   void setId(int i) { id =3D i;   }      =20
NNTP-Downloader: >   public   void getId()      { return i; }
NNTP-Downloader: > }
NNTP-Downloader: >
NNTP-Downloader: >
NNTP-Downloader: > class      Dog=20
NNTP-Downloader: > extends    Animal
NNTP-Downloader: > implements Idable
NNTP-Downloader: > {
NNTP-Downloader: >   private  int id;=09=09=09=09// copy
NNTP-Downloader: >   public   void setId(int i) { id =3D i;   }    =09// &
NNTP-Downloader: >   public   void getId()      { return i; }    =09// paste!
NNTP-Downloader: > }
NNTP-Downloader: >
NNTP-Downloader: > /***********************************************************************
NNTP-Downloader: >   Kiev:  Multiple inheritance by delegation, no code duplication
NNTP-Downloader: > ***********************************************************************/
NNTP-Downloader: > class Id
NNTP-Downloader: > {
NNTP-Downloader: > private int id;
NNTP-Downloader: > public  void setId(int i) { id =3D i;   }      =20
NNTP-Downloader: > public  void getId()      { return i; }
NNTP-Downloader: > }
NNTP-Downloader: >
NNTP-Downloader: > class  =A0Car=A0
NNTP-Downloader: > extends Vehicle
NNTP-Downloader: > {
NNTP-Downloader: > =A0=A0=A0=A0forward=A0public=A0Id myId;   // forward car.getId() to car.myI=
NNTP-Downloader: > d.getId()
NNTP-Downloader: > }
NNTP-Downloader: >
NNTP-Downloader: > class  =A0Dog
NNTP-Downloader: > extends Animal
NNTP-Downloader: > {
NNTP-Downloader: > =A0=A0=A0=A0forward=A0public=A0Id myId;   // forward dog.getId() to dog.myI=
NNTP-Downloader: > d.getId()
NNTP-Downloader: > }
NNTP-Downloader: >
NNTP-Downloader: > /***********************************************************************
NNTP-Downloader: >   C++:  Multiple inheritance, no code duplication
NNTP-Downloader: > ***********************************************************************/
NNTP-Downloader: > class Idable
NNTP-Downloader: > {
NNTP-Downloader: > private: int id;
NNTP-Downloader: > public:
NNTP-Downloader: >    void setId(int i) { id =3D i;   }      =20
NNTP-Downloader: >    void getId()      { return i; }
NNTP-Downloader: > };
NNTP-Downloader: >
NNTP-Downloader: > class Car: public Vehicle, Idable {};
NNTP-Downloader: > class Dog: public Animal,  Idable {};
NNTP-Downloader: >
NNTP-Downloader: > /***********************************************************************
NNTP-Downloader: >   C++:  Textual code inclusion, no code duplication
NNTP-Downloader: > ***********************************************************************/
NNTP-Downloader: >
NNTP-Downloader: > //--- begin file: id.ci ---
NNTP-Downloader: > private: int id;
NNTP-Downloader: > public:
NNTP-Downloader: >    void setId(int i) { id =3D i;   }      =20
NNTP-Downloader: >    void getId()      { return i; }
NNTP-Downloader: > //--- end   file: id.ci ---
NNTP-Downloader: >
NNTP-Downloader: >
NNTP-Downloader: > class Car: public Vehicle
NNTP-Downloader: > {
NNTP-Downloader: > #include "id.ci"
NNTP-Downloader: > };
NNTP-Downloader: >
NNTP-Downloader: > class Dog: public Animal
NNTP-Downloader: > {
NNTP-Downloader: > #include "id.ci"
NNTP-Downloader: > };
NNTP-Downloader: >
NNTP-Downloader: >
NNTP-Downloader: > .
NNTP-Downloader: Got message 1071 (<Pine.GSO.4.02.10108300533040.9049-100000@elf.comlab>)
/usr/bin/iconv: conversion from X-UNKNOWN unsupported
/usr/bin/iconv: try '/usr/bin/iconv -l' to get the list of supported encodings
@CyberShadow
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iconv --version ?

@CyberShadow
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Never mind.

This should not be a fatal error. Is D exception handling working properly on the target platform you've built / are running DFeed on?

@zemanel
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zemanel commented Dec 3, 2015

Hi. OSX 10.11.1

jose:DFeed/ (master*) $ iconv --version                                                                                                                                                                                                                      [15:54:57]
iconv (GNU libiconv 1.11)
Copyright (C) 2000-2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Bruno Haible.

jose:DFeed/ (master*) $ uname -a                                                                                                                                                                                                                             [15:55:02]
Darwin party-centre 15.0.0 Darwin Kernel Version 15.0.0: Sat Sep 19 15:53:46 PDT 2015; root:xnu-3247.10.11~1/RELEASE_X86_64 x86_64
jose:DFeed/ (master*) $

@zemanel
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zemanel commented Dec 3, 2015

I just installed D through Homebrew and mot much else:

jose:DFeed/ (master*) $ brew info dmd                                                                                                                                                                                                                        [15:56:21]
dmd: stable 2.069.1 (bottled), devel 2.069.2-b1, HEAD
D programming language compiler for OS X
http://dlang.org
/usr/local/Cellar/dmd/2.069.1 (395 files, 50M) *
  Poured from bottle
From: https://github.com/Homebrew/homebrew/blob/master/Library/Formula/dmd.rb

@CyberShadow
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Just to clarify, it's just fine if you see this error in DFeed's output, as it will just parse the message with US-ASCII encoding OSLT and keep going. Does DFeed crash or is there some other problem?

@CyberShadow
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Closing since I understand that this was not a fatal error but was understood as such.

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@CyberShadow @zemanel