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add retry() changes to NEWS.md #19991

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Jan 12, 2017
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add retry() changes to NEWS.md #19991

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56 changes: 37 additions & 19 deletions NEWS.md
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Original file line number Diff line number Diff line change
Expand Up @@ -95,14 +95,20 @@ This section lists changes that do not have deprecation warnings.
the corresponding Greek characters in identifiers. `\varepsilon`
now tab-completes to U+03B5 (greek small letter epsilon) ([#19464]).

* `retry` now inputs the keyword arguments `delays` and `check` instead of
`n` and `max_delay`. The previous functionality can be achieved setting
`delays` to `ExponentialBackOff`. ([#19331])

Library improvements
--------------------

* `max`, `min`, and related functions (`minmax`, `maximum`, `minimum`, `extrema`) now return `NaN` for `NaN` arguments ([#12563]).
* `max`, `min`, and related functions (`minmax`, `maximum`, `minimum`,
`extrema`) now return `NaN` for `NaN` arguments ([#12563]).

* The `chop` and `chomp` functions now return a `SubString` ([#18339]).

* Numbered stackframes printed in stacktraces can be opened in an editor by entering the corresponding number in the REPL and pressing `^Q` ([#19680]).
* Numbered stackframes printed in stacktraces can be opened in an editor by
entering the corresponding number in the REPL and pressing `^Q` ([#19680]).

* The REPL now supports something called *prompt pasting* ([#17599]).
This activates when pasting text that starts with `julia> ` into the REPL.
Expand All @@ -111,22 +117,32 @@ Library improvements
without having to scrub away prompts and outputs.
This can be disabled or enabled at will with `Base.REPL.enable_promptpaste(::Bool)`.

* The function `print_with_color` can now take a color represented by an integer between 0 and 255 inclusive as its first argument ([#18473]).
For a number to color mapping please refer to [this chart](https://upload.wikimedia.org/wikipedia/en/1/15/Xterm_256color_chart.svg).
It is also possible to use numbers as colors in environment variables that customizes colors in the REPL.
For example, to get orange warning messages, simply set `ENV["JULIA_WARN_COLOR"] = 208`.
Please note that not all terminals support 256 colors.

* The function `print_with_color` no longer prints text in bold by default ([#18628]).
Instead, the function now take a keyword argument `bold::Bool` which determines whether to print in bold or not.
On some terminals, printing a color in non bold results in slightly darker colors being printed than when printing in bold.
Therefore, light versions of the colors are now supported.
For the available colors see the help entry on `print_with_color`.

* The default color for info messages has been changed from blue to cyan and for warning messages from red to yellow.
This can be changed back to the original colors by setting the environment variables `JULIA_INFO_COLOR` to `"blue"` and `JULIA_WARN_COLOR` to `"red"`.
One way of doing this is by adding for example `ENV["JULIA_INFO_COLOR"] = :blue` and `ENV["JULIA_WARN_COLOR"] = :red` to the `.juliarc.jl` file.
For more information regarding customizing colors in the REPL, see this [manual section]( http://docs.julialang.org/en/latest/manual/interacting-with-julia/#customizing-colors).
* The function `print_with_color` can now take a color represented by an
integer between 0 and 255 inclusive as its first argument ([#18473]). For
a number to color mapping please refer to [this
chart](https://upload.wikimedia.org/wikipedia/en/1/15/Xterm_256color_chart.svg).
It is also possible to use numbers as colors in environment variables that
customizes colors in the REPL. For example, to get orange warning
messages, simply set `ENV["JULIA_WARN_COLOR"] = 208`. Please note that not
all terminals support 256 colors.

* The function `print_with_color` no longer prints text in bold by default
([#18628]). Instead, the function now take a keyword argument `bold::Bool`
which determines whether to print in bold or not. On some terminals,
printing a color in non bold results in slightly darker colors being
printed than when printing in bold. Therefore, light versions of the
colors are now supported. For the available colors see the help entry on
`print_with_color`.

* The default color for info messages has been changed from blue to cyan and
for warning messages from red to yellow. This can be changed back to the
original colors by setting the environment variables `JULIA_INFO_COLOR` to
`"blue"` and `JULIA_WARN_COLOR` to `"red"`. One way of doing this is by
adding for example `ENV["JULIA_INFO_COLOR"] = :blue` and
`ENV["JULIA_WARN_COLOR"] = :red` to the `.juliarc.jl` file. For more
information regarding customizing colors in the REPL, see this [manual
section](
http://docs.julialang.org/en/latest/manual/interacting-with-julia/#customizing-colors).

* Iteration utilities that wrap iterators and return other iterators (`enumerate`, `zip`, `rest`,
`countfrom`, `take`, `drop`, `cycle`, `repeated`, `product`, `flatten`, `partition`) have been
Expand All @@ -139,7 +155,9 @@ Library improvements
you can now do e.g. `[A I]` and it will concatenate an appropriately sized
identity matrix ([#19305]).

* New `accumulate` and `accumulate!` functions, which generalize `cumsum` and `cumprod`. Also known as a [scan](https://en.wikipedia.org/wiki/Prefix_sum) operation ([#18931]).
* New `accumulate` and `accumulate!` functions, which generalize `cumsum` and
`cumprod`. Also known as a [scan](https://en.wikipedia.org/wiki/Prefix_sum)
operation ([#18931]).

* New `titlecase` function, which capitalizes the first character of each word within a string ([#19469]).

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2 changes: 1 addition & 1 deletion base/error.jl
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Expand Up @@ -115,7 +115,7 @@ done(ebo::ExponentialBackOff, state) = state[1]<1
length(ebo::ExponentialBackOff) = ebo.n

"""
retry(f::Function; delays=Base.ExponentialBackOff(), check=nothing) -> Function
retry(f::Function; delays=ExponentialBackOff(), check=nothing) -> Function

Returns an anonymous function that calls function `f`. If an exception arises,
`f` is repeatedly called again, each time `check` returns `true`, after waiting the
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