Input csview command without parameter will get no repsonse in terminal

[wangyongf]

Check list

• I have read through the README
• I have searched through the existing issues

Environment info

• OS
  • Linux
  • Mac OS X
  • Windows
  • Others:

Version

csview v0.3.4

Problem / Steps to reproduce

Input csview command without parameter will get no repsonse in terminal. It seems something wrong? I think the csview cli should check the input parameters and if no input parameter are given (eg, only input csview in terminal), error message should be given for better user experience.

[wfxr]

Hi @wangyongf This is an expected behavior. csview supports reading data from stdin. If run csview without file parameter, it will read the stdin (like cat or bat etc.).

Case 1:

$ csview
a,b,c
1,2,3
4,5,6 (press ctrl-d here will output the following)
+---+---+---+
| a | b | c |
+---+---+---+
| 1 | 2 | 3 |
| 4 | 5 | 6 |
+---+---+---+

Case 2:

$ printf 'a,b,c\n1,2,3' | csview
+---+---+---+
| a | b | c |
+---+---+---+
| 1 | 2 | 3 |
+---+---+---+