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repl: fix tab completion for object properties with special characters #21556

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repl: fix tab completion for object properties with special characters #21556

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starkwang
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@starkwang starkwang commented Jun 27, 2018 •
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The old RegExp will pass property names like "hello world!" when filtering the results of tab complete. This change is to fix it.

By the way, now the repl module doesn't support tab complete like obj[<tab>. Is there any plan for this?

Fixes: #21201

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  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines

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@starkwang build started: https://ci.nodejs.org/blue/organizations/jenkins/node-test-pull-request-lite-pipeline/detail/node-test-pull-request-lite-pipeline/165/pipeline

@nodejs-github-bot nodejs-github-bot added the repl Issues and PRs related to the REPL subsystem. label Jun 27, 2018
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Would it be possible to generate proper tab completions for the other keys? I.e. autocomplete obj.hello to obj['hello, world']?

TimothyGu
TimothyGu reviewed Jun 27, 2018
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You might find https://github.com/devsnek/node-repl-prototype/blob/5e72bed5a127c0b3e1c7289d75c3eb157db43522/src/repl.js#L154-L169 to be helpful to enhance the behavior for [ property references.

lib/repl.js Outdated
// Filters the elements that pass the regexp:
// 1. Starting with A-Z, a-z, $ or _
// 2. Following with A-Z, a-z, 0-9, $ or _
return /^[A-Za-z_$][A-Za-z0-9_$]*$/.test(item);
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With acorn in tree, we could actually do something like

https://github.com/devsnek/node-repl-prototype/blob/5e72bed5a127c0b3e1c7289d75c3eb157db43522/src/util.js#L3-L24

for higher accuracy.

@starkwang
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Would it be possible to generate proper tab completions for the other keys? I.e. autocomplete obj.hello to obj['hello, world']?

@addaleax Rewrite the user input from obj.hello to obj['hello, world'] might exceed the scope of autocomplete. It should not rewrite but append something after the user input.

@starkwang
repl: fix tab completion for object properties with special char
4443b61 
The old RegExp will pass property names like `"hello world!"`
when filtering the results of tab complete. This change is to
fix it.

Fixes: nodejs#21201
@starkwang
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CI before landing: https://ci.nodejs.org/job/node-test-pull-request/15704/

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Landed in 4f15122

@starkwang starkwang closed this Jul 2, 2018
starkwang added a commit that referenced this pull request Jul 2, 2018
@starkwang
repl: fix tab completion for object properties with special char
4f15122 
The old RegExp will pass property names like `"hello world!"`
when filtering the results of tab complete. This change is to
fix it.

Fixes: #21201

PR-URL: #21556
Fixes: #21201
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: John-David Dalton <john.david.dalton@gmail.com>
targos pushed a commit that referenced this pull request Jul 3, 2018
@starkwang @targos
repl: fix tab completion for object properties with special char
1894d6c 
The old RegExp will pass property names like `"hello world!"`
when filtering the results of tab complete. This change is to
fix it.

Fixes: #21201

PR-URL: #21556
Fixes: #21201
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: John-David Dalton <john.david.dalton@gmail.com>
@targos targos mentioned this pull request Jul 3, 2018
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@snyk-bot snyk-bot mentioned this pull request Mar 18, 2020
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@jdalton jdalton jdalton approved these changes

@TimothyGu TimothyGu TimothyGu approved these changes

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Bad tab completion for object properties with special characters
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@starkwang @nodejs-github-bot @addaleax @jdalton @TimothyGu