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repl: Adding code for handling multiline history #22153

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@antsmartian antsmartian commented Aug 6, 2018

I always wanted to handle multiline history separately. For example, if I enter a multiline statement and then navigate between the history(s), its very annoying as it shows each line, but I expect it to show the executed line.

This is work in progress, but yeah its working and all test cases are passing. I need to handle few more cases and write a unit test case. But thought, what others think over this? May be there is also a better way to do it.

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

@nodejs-github-bot nodejs-github-bot added readline Issues and PRs related to the built-in readline module. repl Issues and PRs related to the REPL subsystem. labels Aug 6, 2018
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Ok looks interesting, test on my mac works perfectly fine. Not sure why CI build is failing though 😕

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cc @nodejs/repl

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BridgeAR commented Sep 5, 2018

It would be great to get multi line support in the repl. I guess the approach itself is fine for as a first start.

Looping in @jdalton. You seemed to have interest in the repl as well.

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@BridgeAR Thanks for taking a look at it (Yes, I'm interested in repl too 😃 ). Lets wait for @jdalton comments. Ofcourse, this will be in progress as I have to add few more code and as well as test cases for the same.

lib/readline.js Outdated
@@ -216,6 +217,7 @@ function Interface(input, output, completer, terminal) {

this.history = [];
this.historyIndex = -1;
console.log('Yes initialized....\n\n\n', this.history);
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☝️ is that debug?

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My bad, yes did for debugging. Will remove them and update the PR with test cases :)

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@jdalton Have removed the console statement also added the test. Can you please have a look at it?

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@jdalton Can you kindly loop in other folks who also needs to approve this PR before it will get merged? Thanks!

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jdalton commented Oct 4, 2018

Friendly re-ping of @nodejs/repl 🔊

{ // Tests multiline history
env: {},
test: ['{', '}', UP, CLEAR],
expected: [prompt, '{', '... ', '}', '{}\n', prompt, `${prompt}{}`, prompt], // eslint-disable-line max-len
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nit: this really shouldn't need the exclusion... just go ahead and wrap.

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@jasnell Sure, will take care and push the change. Thanks!

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antsmartian commented Oct 11, 2018

@jasnell : Addressed your review comments.

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@jasnell / @jdalton Anything needed from my side? Or else can we merge them? Let me know.

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jasnell commented Oct 14, 2018

There shouldn't be anything else. A lot of us have been tied up this week with a conference. Hopefully this will be landed here soon

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@lundibundi lundibundi added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Oct 26, 2018
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Friendly ping @nodejs/repl if anyone wants to take another look as quite some time has passed.

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@jasnell / @jdalton : Friendly ping 🔔

lib/repl.js Outdated Show resolved Hide resolved
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jdalton commented Nov 2, 2018

This looks more like a bug fix to me.

Trott pushed a commit to Trott/io.js that referenced this pull request Nov 2, 2018
PR-URL: nodejs#22153
Reviewed-By: John-David Dalton <[email protected]>
Reviewed-By: James M Snell <[email protected]>
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Trott commented Nov 2, 2018

Landed in dd7a3d2

@Trott Trott closed this Nov 2, 2018
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Thanks everyone!

@antsmartian antsmartian deleted the multiline-history branch November 3, 2018 10:25
@antsmartian antsmartian restored the multiline-history branch November 3, 2018 10:25
@antsmartian antsmartian deleted the multiline-history branch November 3, 2018 10:26
@antsmartian antsmartian restored the multiline-history branch November 3, 2018 10:26
targos pushed a commit that referenced this pull request Nov 3, 2018
PR-URL: #22153
Reviewed-By: John-David Dalton <[email protected]>
Reviewed-By: James M Snell <[email protected]>
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@targos I think this can be backported to 10.x. What do you think? I would be happy to raise a PR for the same.

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targos commented Nov 20, 2018

If this is backported to v10.x, it should be done with #24389

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I guess we are good here, I couldn't see the code in 10.x stage : https://github.com/nodejs/node/blob/v0.10-staging/lib/readline.js

@MylesBorins MylesBorins added semver-minor PRs that contain new features and should be released in the next minor version. dont-land-on-v8.x labels Nov 27, 2018
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This seems like it should perhaps have been Semver-Minor... is that a correct assumption?

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