- The dd info page mentions a special fast-read framework if no conv=FLAG is
specified (see bs=N) which I left space for. As it turns out, this is performed already
so it does not need to be implemented.
- Adds print fn's
- Modifies internal fn's as needed to track read/write state
- Modifies status update thread to respect status level
- Adds signal handler for SIGUSR1 (print xfer stats)
- Splits read fn into conv=sync and standard (consecutive)
versions.
- Fixes bug in previous read/fill where short reads would copy to wrong
position in output buffer.
- Fixes bug in unit tests. Empty source would pass (since no bytes
failed to match).
- Adds duplicate dd fn :-( for differentiating between File backed and
non-File outputs.
- Implements cflag=sparse,fsync,fdatasync which were previously blocked.
- Adds plumbing for IFlags & OFlags incl parsing.
- Partial impl for seek=N and skip=N which were previously blocked.
- conv=sparse option requires knowledge of File/Stdout to change
behaviour.
- Unclear how best to impl this.
- Possible option: develop 4 versions of dd<X,Y> for each valid pair of { File, Stdin,
Stdout }.
- Moves all arg parsing & tests to parseargs.rs
- Moves conversion tables to conversion_tables.rs
- Adds ebcdic_lcase and _ucase tables
- Refactors options: This **Breaks Write for Output**
- Adds support for calling dd fn from cl
- Adds basic cl tests from project root
- Adds support for multiplier strings (c, w, b, kB, KB, KiB, ... EB, E,
EiB.
Current implementation of the skip fields logic does not handle
multibyte code points correctly. It assumes each code point (`char`) is
one byte. If the skipped part of the input line has any multibyte code
points then this can cause fields not being skipped correctly (field
start index is calculated to be before it actually starts).
* touch: use arggroup for sources
* tests/touch: add tests for multiple sources
* touch: turn macros into functions
* test/touch: fmt
* touch: constant for the sources ArgGroup
