Give Tab warning only once per file
Currently, when compiling a tabbed file, GHC spits out a huge number of warnings:
Main.hs:1:1: Warning: Tab character
[..]
Main.hs:89:1: Warning: Tab character
Main.hs:90:1: Warning: Tab character
Main.hs:91:1: Warning: Tab character
Main.hs:92:1: Warning: Tab character
Main.hs:99:4: Warning: Tab character
Main.hs:100:4: Warning: Tab character
Main.hs:101:4: Warning: Tab characterThis is annoying and not very nice to our users.
I suggest to replace it by
This file contains tabs (e.g. line n column m); please use spaces insteador (to be nice to tools that parse this output)
Main.hs:1:1: Tab found here, and in n further locations. Please use spaces instead.(This is clearly a low priority request, but also possibly some low-hanging fruit for new contributors.)
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.9 |
| Type | FeatureRequest |
| TypeOfFailure | OtherFailure |
| Priority | low |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |