repl,readline: improve unicode support and tab completion #31288
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jasnell
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Jan 10, 2020
1. This reduces the number of write operations used during tab completion. 2. The tab completion calculated the string width using the length of the string instead of using the actual width. That is fixed. 3. The key decoder is now capable of handling characters composed out of two code points. That reduces the number of "keypress" events that are emitted which again lowers the amount of writes triggered.
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This simplifies code that was more complicated than it had to be and removes code that should never be reached.
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@jasnell I pushed another commit that cleans up some code. It would have conflicted with the former commit if I would have opened another PR for it instead. PTAL. |
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Jan 10, 2020
| getStringWidth(this.line[this.cursor]) > 1) { | ||
| rows++; | ||
| cols = 0; | ||
| } |
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Our cursor can't be between two code points. We move the cursor by the correct length since a while.
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Jan 11, 2020
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Jan 11, 2020
1. This reduces the number of write operations used during tab completion. 2. The tab completion calculated the string width using the length of the string instead of using the actual width. That is fixed. 3. The key decoder is now capable of handling characters composed out of two code points. That reduces the number of "keypress" events that are emitted which again lowers the amount of writes triggered. PR-URL: #31288 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rich Trott <[email protected]>
Trott
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Jan 11, 2020
This simplifies code that was more complicated than it had to be and removes code that should never be reached. PR-URL: #31288 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rich Trott <[email protected]>
MylesBorins
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Jan 16, 2020
1. This reduces the number of write operations used during tab completion. 2. The tab completion calculated the string width using the length of the string instead of using the actual width. That is fixed. 3. The key decoder is now capable of handling characters composed out of two code points. That reduces the number of "keypress" events that are emitted which again lowers the amount of writes triggered. PR-URL: #31288 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rich Trott <[email protected]>
MylesBorins
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Jan 16, 2020
This simplifies code that was more complicated than it had to be and removes code that should never be reached. PR-URL: #31288 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rich Trott <[email protected]>
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@BridgeAR should this go back to |
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Apr 25, 2020
1. This reduces the number of write operations used during tab completion. 2. The tab completion calculated the string width using the length of the string instead of using the actual width. That is fixed. 3. The key decoder is now capable of handling characters composed out of two code points. That reduces the number of "keypress" events that are emitted which again lowers the amount of writes triggered. PR-URL: nodejs#31288 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rich Trott <[email protected]>
targos
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Apr 25, 2020
This simplifies code that was more complicated than it had to be and removes code that should never be reached. PR-URL: nodejs#31288 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rich Trott <[email protected]>
targos
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Apr 28, 2020
1. This reduces the number of write operations used during tab completion. 2. The tab completion calculated the string width using the length of the string instead of using the actual width. That is fixed. 3. The key decoder is now capable of handling characters composed out of two code points. That reduces the number of "keypress" events that are emitted which again lowers the amount of writes triggered. PR-URL: #31288 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rich Trott <[email protected]>
targos
pushed a commit
that referenced
this pull request
Apr 28, 2020
This simplifies code that was more complicated than it had to be and removes code that should never be reached. PR-URL: #31288 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rich Trott <[email protected]>
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completion.
of the string instead of using the actual width. That is fixed.
out of two code points. That reduces the number of "keypress"
events that are emitted which again lowers the amount of writes
triggered.
This is currently blocked by #31112 (moving thecharLengthAtfunction).// cc @nodejs/repl @nodejs/readline
Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passes