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The term returned by io_lib:limit_term(Term, Depth) should return
the same string if substituted for Term in
io_lib:format("~P", [Term, Depth]) or io_lib:format("~W", [Term, Depth]).
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As of the introduction of Unicode characters in atoms, the control
sequences 'w' and 'W' can return non-Latin-1 characters, unless some
measure is taken.
This commit makes sure that '~w' and '~W' always return Latin-1
characters, or bytes, which can be output to ports or written to raw
files.
The Unicode translation modifier 't' is needed to return non-Latin-1
characters.
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Using the new type syntax, we can specify which keys are required, and
which are optional in a way Dialyzer could use.
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This is a commit to enable printouts of hashmaps during development and
will be enhanced once hashmaps are in place.
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This adds three new functions to io_lib - scan_format/2, unscan_format/1,
and build_text/1 - which expose the parsed form of the format control
sequences to make it possible to easily modify or filter the input to
io_lib:format/2. This can e.g. be used in order to replace unbounded-size
control sequences like ~w or ~p with corresponding depth-limited ~W and ~P
before doing the actual formatting.
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Name conforms to EEP.
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files as delimiters.
While working on a tool that processes Erlang code and testing it against this repo,
I found out about those little sneaky 0xff. I thought it may be of help to other
people build such tools to remove non-conforming-to-standard characters.
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* maint:
Correct the specifications of io_lib:fread/2,3
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Thanks to Chris King and Kostis Sagonas for pinpointing the bug.
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This makes both io:format("~tp", ...) and
the shell honor the +pc setting and also reverts the shell to
the old behaviour of only interpreting latin1 strings as "strings"
by default. +pc unicode turns on the R16A behaviour. Doing
io:format("~tp~n", [[1024,1025]]).
will show you the difference when starting with +pc unicode.
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The code related to the introduction of unicode_string() and
unicode_char() has been removed. The types char() and string() have
been extended to include Unicode characters.
In fact char() was changed some time ago; this commit is about
cleaning up the documentation and introduce better names for some
functions.
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Also minor corrections of the docs of io(3)
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Expect modifications, additions and corrections.
There is a kludge in file_io_server and
erl_scan:continuation_location() that's not so pleasing.
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* at/binary-depth-printing:
Fix printing the empty binary at depth 1 with ~W
OTP-10504
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A case clause ordering problem is causing the empty binary to be
printed as <<...>> rather than the correct <<>> when using ~W with a
depth of 1. Add new tests to verify correct behaviour.
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Running Dialyzer on the test suites revealed a few type errors.
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prompt strings (io:get_line/{1,2}). io_lib is also updated to
format prompts with the 't' modifier (i.e. ~ts instead of ~s).
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