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* rickard/null-chars/ERL-370/OTP-14543:
Don't allow null chars in various strings
Conflicts:
erts/emulator/beam/erl_alloc.types
erts/preloaded/ebin/erlang.beam
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* maint:
Revert "Merge branch 'rickard/null-char-filenames/ERL-370/OTP-14543' into maint"
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This reverts commit 0717a2194e863f3a78595184ccc5637697f03353, reversing
changes made to 71a40658a0cef8b3e25df3a8e48a72d0563a89bf.
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Various places that now reject null chars inside strings
- Primitive file operations reject it in filenames.
- Primitive environment variable operations reject it in
names and values.
- os:cmd() reject it in its input.
Also '=' characters are rejected by primitive environment
variable operations in environment variable names.
Documentation has been updated to document null characters
in these types of data as invalid. Currently these operations
accept null chars at the end of strings, but that will change
in the future.
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Allow characters with special meaning to be escaped using
\ (which must be writen as \\ in a string). That allows
matching of filenames containing characters that are special
in wildcards.
This is an incompatible change, but note that the use of backslashes
in wildcards would already work differently on Windows and Unix. Take
for example this call:
filelib:wildcard("a\\b")
On Windows, filelib:wildcard/1 would look for a directory named
"a", and a file or directory named "b" inside it.
On Unix, filelib:wildcard/1 would look for a file named "a\\b".
With this commit applied, filelib:wildcard/1 will look for
a file named "ab" on both Windows and Unix.
https://bugs.erlang.org/browse/ERL-451
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This moves, extends and exports functionality that previously existed only
internally in filename:find_src/1/2, adding the ability to automatically
substitute file suffixes and use different rules for different suffixes.
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Language cleaned up by the technical writers xsipewe and tmanevik
from Combitech. Proofreading and corrections by Björn Gustavsson
and Hans Bolinder.
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* maint:
stdlib: Include file:all datatypes in filelib
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Two adjacent * used as a single pattern will match
all files and zero or more directories and subdirectories.
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Use Erlang specs and types for documentation
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