* Replace ansi-cut with ansi-str
There's no issues with it we just need to use it later.
Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
* Fix color losing in string spliting into Sublines
Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
* Include license text in all crates
Three crates already have license texts, so I'm keeping them, but
symlinking the `LICENSE` from the top level to the rest of the crate
directories. This works as long as `cargo publish` is done on a Unix-y
system and not Windows.
Also bump the copyright year to end in 2022.
Signed-off-by: Michel Alexandre Salim <salimma@fedoraproject.org>
* Replace symlinks
Co-authored-by: sholderbach <sholderbach@users.noreply.github.com>
* nu-completer with suggestions
* help menu with scrolling
* updates description rows based on space
* configuration for help menu
* update nu-ansi-term
* corrected test for update cells
* changed keybinding
For the width calculations for table layout the `strip_ansi` function
has to be called frequently. By checking for the ASCII control chars
(0x00 to 0x1f) except `\n` that are stripped by `strip_ansi_escapes` the number of
necessary allocations can be reduced significantly for the simple case
of text not containing ANSI escapes.
**Benchmark:**
```
nu -c "for i in 0..1000 { ls } | flatten | table"
```
**Allocation reduction**
Running on the nushell repo root as the directory, this change reduces the
allocation volume by approximately 400 MB
(Measured run via KDE heaptrack)
**Speed improvement to output**
Measured via `/usr/bin/time -v`
*before*
```
Command being timed: "./eager_nu -c for i in 0..1000 {ls} | flatten | table"
User time (seconds): 0.87
System time (seconds): 0.14
Percent of CPU this job got: 87%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:01.16
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 18888
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 4809
Voluntary context switches: 38
Involuntary context switches: 14
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
```
*after*
```
Command being timed: "./lazy_nu -c for i in 0..1000 {ls} | flatten | table"
User time (seconds): 0.63
System time (seconds): 0.14
Percent of CPU this job got: 80%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.97
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 18660
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 5149
Voluntary context switches: 24
Involuntary context switches: 5
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
```
Ansi-cut expects ranges of character numbers (of the non-ansi control
sequence characters) instead of byte indices.
This fixes the panics when wrapping of non-unicode lines (which exceed
the demanded number of characters as byte indices).
Also rectifies some wrong wrapping of unicdoe containing lines that
don't panic
