Correct the behavior of `dd` when multiple arguments are provided.
Before this commit, if the multiple arguments was provided then
the validation error are returned.
For example
```
$ printf '' | ./target/debug/dd status=none status=noxfer
error: The argument '--status=<LEVEL>' was provided more than once, but cannot be used multiple times
USAGE:
dd [OPTIONS]
For more information try --help
```
The unittest was added for this case.
This allows for `-t` to take invalid unicode (but still single-byte) values
on unix-like platforms. Other platforms, which as of the time of this commit
do not support `OsStr::as_bytes()`, could possibly be supported in the future,
but would require design decisions as to what that means.
Replace the `FilenameFactory` with `FilenameIterator` and calls to
`FilenameFactory::make()` with calls to `FilenameIterator::next()`. We
did not need the fully generality of being able to produce the
filename for an arbitrary chunk index. Instead we need only iterate
over filenames one after another. This allows for a less
mathematically dense algorithm that is easier to understand and
maintain. Furthermore, it can be connected to some familiar concepts
from the representation of numbers as a sequence of digits.
This does not change the behavior of the `split` program, just the
implementation of how filenames are produced.
Co-authored-by: Terts Diepraam <terts.diepraam@gmail.com>
- Change the main! proc_macro to a bin! macro_rules macro.
- Reexport uucore_procs from uucore
- Make utils to not import uucore_procs directly
- Remove the `syn` dependency and don't parse proc_macro input (hopefully for faster compile times)
Prevent usize underflow when reducing the size of a file by more than
its current size. For example, if `f` is a file with 3 bytes, then
truncate -s-5 f
will now set the size of the file to 0 instead of causing a panic.
Improve the error message that gets printed when a directory does not
exist. After this commit, the error message is
truncate: cannot open '{file}' for writing: No such file or directory
where `{file}` is the name of a file in a directory that does not
exist.
Change a word in the error message displayed when an increment value
of 0 is provided to `seq`. This commit changes the message from "Zero
increment argument" to "Zero increment value" to match the GNU `seq`
error message.
