• d-bugmail puremagic.com (22/33) Apr 23 2019 https://issues.dlang.org/show_bug.cgi?id=19820

d-bugmail puremagic.com writes:

https://issues.dlang.org/show_bug.cgi?id=19820

          Issue ID: 19820
           Summary: Add readfln to std.stdio
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: phobos
          Assignee: nobody puremagic.com
          Reporter: andre s-e-a-p.de

It is quite hard to use readf for beginners as explained here by Ali and Adam.
https://forum.dlang.org/post/agspmmtjrthzxefjbwej forum.dlang.org

Quote from Ali:
 The solution is to use readln, which regrettably comes too late in the book:

Quote from Adam:
 For "%s" with a string argument, it reads ALL of stdin into that string.
 This means you need to send an end-of-file indicator to the program. ctrl+z
 on Windows does this, and ctrl+d can on Linux (you might have to hit it 
 twice there; it doesn't technically send end of file, but can be read as it 
 by the program if there is no other input pending in the buffer).

 This is quite bizarre for new users, I agree, but it isn't technically 
 invalid.

 (my personal feeling though is readf is just a pile of confusion and should >
almost never be used. I hate that it is introduced so early in most 
 tutorials... I'd rather have it in an appendix for special cases only rather
  than like page 3.)

I would suggest to add a function readfln which solves the issue of readf.


Signature of readfln should be similair to readf
https://dlang.org/phobos/std_stdio.html#.readf

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