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Have a sanctioned way to modify the REPL's IOContext #20509

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Keno opened this issue Feb 7, 2017 · 3 comments · Fixed by #29249
Closed

Have a sanctioned way to modify the REPL's IOContext #20509

Keno opened this issue Feb 7, 2017 · 3 comments · Fixed by #29249
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display and printing Aesthetics and correctness of printed representations of objects. help wanted Indicates that a maintainer wants help on an issue or pull request REPL Julia's REPL (Read Eval Print Loop)

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@Keno
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Keno commented Feb 7, 2017

I would like a way to modify the IOContext of the REPL. Right now that's a little hard because everything is buried deep in the REPL code.

Example:

julia> immutable Foo
       end

julia> show(io::IO, x::Foo) = print(io, get(io, :debug, false) ? "Lots of debug info" : "Foo")
show (generic function with 1 method)

julia> Foo
Foo

I'd like some global setting that allows me to put debug=true in the REPL IOContext and print "Lots of debug info" at the REPL.
@Keno Keno added the help wanted Indicates that a maintainer wants help on an issue or pull request label Feb 7, 2017
@ararslan ararslan added display and printing Aesthetics and correctness of printed representations of objects. REPL Julia's REPL (Read Eval Print Loop) labels Feb 7, 2017
@vtjnash
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vtjnash commented Feb 8, 2017

+1. I suspect we just need to remove the type restrictions from the fields of TTYTerminal.

@KristofferC
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What's the advantage over using a global or using a proper logging tool?

@TotalVerb
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👍 for IO context configurability in REPL. Configuring the REPL's IOContext is better than using a global because it avoids interfering with any user code; it just affects how things are displayed. I'm not sure what logging has to do with this; IOContext will only affect how things are printed and has nothing to do with logging. I believe what Keno means by "debug info" are object internals.

@JeffBezanson JeffBezanson mentioned this issue Feb 24, 2017
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@cstjean cstjean mentioned this issue Sep 1, 2017
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rfourquet added a commit that referenced this issue Sep 18, 2018
@rfourquet
REPL: allow tweaking the implicit IOContext of the REPL
6613f8c 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.iocontext[:compact] = true`.

Fixes #20509.
@rfourquet rfourquet mentioned this issue Sep 18, 2018
Merged
rfourquet added a commit that referenced this issue Sep 17, 2019
@rfourquet
REPL: allow tweaking the implicit IOContext of the REPL
5aa66f5 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.iocontext[:compact] = true`.

Fixes #20509.
rfourquet added a commit that referenced this issue Sep 25, 2019
@rfourquet
REPL: allow tweaking the implicit IOContext of the REPL
b386f5f 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.iocontext[:compact] = true`.

Fixes #20509.
rfourquet added a commit that referenced this issue Oct 2, 2019
@rfourquet
REPL: allow tweaking the implicit IOContext of the REPL
9a720f2 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.iocontext[:compact] = true`.

Fixes #20509.
rfourquet added a commit that referenced this issue Oct 2, 2019
@rfourquet
REPL: allow tweaking the implicit IOContext of the REPL
caf2950 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.iocontext[:compact] = true`.

Fixes #20509.
rfourquet added a commit that referenced this issue Oct 30, 2019
@rfourquet
REPL: allow tweaking the implicit IOContext of the REPL
f54477e 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.iocontext[:compact] = true`.

Fixes #20509.
rfourquet added a commit that referenced this issue Nov 1, 2019
@rfourquet
REPL: allow tweaking the implicit IOContext of the REPL
4212cc9 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL.options`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.options.iocontext[:compact] = true`.

Fixes #20509.
rfourquet added a commit that referenced this issue Nov 16, 2019
@rfourquet
REPL: allow tweaking the implicit IOContext of the REPL (#29249)
9e20e03 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL.options`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.options.iocontext[:compact] = true`.

Fixes #20509.
KristofferC pushed a commit that referenced this issue Apr 11, 2020
@rfourquet @KristofferC
REPL: allow tweaking the implicit IOContext of the REPL (#29249)
623c7a4 
This adds an `iocontext::Dict{Symbol,Any}` field to `LineEditREPL.options`,
which can be initialized with `atreplinit`, and updated
interactively, e.g. `Base.active_repl.options.iocontext[:compact] = true`.

Fixes #20509.
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display and printing Aesthetics and correctness of printed representations of objects. help wanted Indicates that a maintainer wants help on an issue or pull request REPL Julia's REPL (Read Eval Print Loop)
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REPL: allow tweaking the implicit IOContext of the REPL JuliaLang/julia
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@vtjnash @KristofferC @Keno @ararslan @TotalVerb