How could I use newline characters?

[destec]

I want to start a new line in a single cell, so I tried to add '\r\n' or '\n' at the end of the line. But it seems like it will be forbidden because of the regex test in validateData.js line 58: /[\x01-\x1A]/.test(cell). So is there any way to have a new line?

[gajus]

How is the output supposed to look?

[gajus]

I am writing V3 at the moment. This sounds like a breaking change. Therefore, it would be a good time to contribute thoughts about newline character support.

[gajus]

I was thinking more of this and I cannot see a valid use case for a newline character in the context of a tabular data. If you can provide an example, I will add this for future consideration.

[destec]

Thanks for your concern @gajus . What I really need is to have multiple line in one cell for some reason. A bad code was like

var element1 = "a single line works perfect"
var element2 = "the first line \r\n  the second line \r\n  the third line"

var data = [[1, 2], [element1, element2]];

console.log(table(data));

As you can see, in the variable element2 I want to split the content into three lines and I used \r\n as the symbol but it would have an error just I wrote before. And below is what I think it would look like:

1	2
a single line works perfect	the first line the second line the third line

[gajus]

There is no way to force a new line other than restricting the column width. As a simple workaround, I suggest to simply replace all instances of newline with a custom character that would visually indicate a line break, e.g. literal \n.

[gajus]

Since @shellscape has brought this up again:

I don't remember the reason for not supporting a new line character. As far as I remember, my reasoning was that this is a fairly edge case requirement and it would introduce a considerable level of code complexity to support it without running into edge cases.

[shellscape]

haha "hellscape" that sounds ominous. I don't think it's as edge-casey as it might seem. Aside from text-table, nearly every other table-printing module out there supports it. I was drawn in by the simple use and setup of table. The alternative is to add rows with empty cells to fake a line break in a particular cell, and that's mighty hacky.

[gajus]

Sorry, copy-paste failure. :-)

I am certainly open to a PR.

[fogine]

Another use case would be pretty-printing json schema into one of the columns, eg:

type	schema
text	{ prop: { \n prop2: 'value', \n prop3: 'value' \n } \n }

In my case the schema is more complex with custom syntax highlighting. It does not make sense to transform it into another table.

[rix0rrr]

I will second a feature request for this. Lack of this feature is a deal breaker for me.

I was thinking more of this and I cannot see a valid use case for a newline character in the context of a tabular data

Well it might turn out that your users have different use cases than you can imagine. In my case, I want to show structured complex data in each cell (lists of strings => newline separated strings, JSON => pretty-printed JSON).

You might want to put a disclaimer at the top of the description that is this library is explicitly not intended for use cases where you want to show something more than single scalar value in a cell.

[gajus]

I will second a feature request for this. Lack of this feature is a deal breaker for me.

Please contribute if this feature is important for you.

[rix0rrr]

Fair enough request. I notice myself sounding like an entitled internet person, sorry for that.

In the mean time I've found a different library that does what I want, so I'm good :). Thanks for the response though.

[rix0rrr]

Ha, turns out I settled on cli-table, the thing you originally forked!

https://github.com/Automattic/cli-table/issues/79

[gajus]

table is not a fork of cli-table.

Glad you found whats working for you though.

[PADMAARUN]

i get the following error while installing hyperledger caliper

cse@system:~$ sudo npx caliper benchmark run --caliper-workspace ./ --caliper-benchconfig ~/caliper/packages/caliper-samples/benchmark/drm/config.yaml --caliper-networkconfig ~/caliper/packages/caliper-samples/network/fabric-v1.4.1/2org1peergoleveldb/fabric-go.yaml [sudo] password for cse: Benchmark for target Blockchain type fabric about to start 2019.11.28-21:18:46.332 info [caliper] [caliper-flow] ####### Caliper Test ####### 2019.11.28-21:18:46.334 info [caliper] [local-observer] Observer interval set to 1 seconds 2019.11.28-21:18:46.335 info [caliper] [caliper-utils] Executing command: cd /home/cse;docker-compose -f caliper/packages/caliper-samples/network/fabriCreating orderer.example.com ... done Creating network "2org1peergoleveldb_default" with the default driver Creating peer0.org2.example.com ... done Creating ca.org1.example.com ... Creating orderer.example.com ... Creating peer0.org1.example.com ... Creating peer0.org2.example.com ... 2019.11.28-21:18:50.836 info [caliper] [adapters/fabric] Fabric SDK version: 1.4.0; TLS: none 2019.11.28-21:18:51.182 info [caliper] [adapters/fabric] Org1's registrar enrolled successfully 2019.11.28-21:18:51.322 info [caliper] [adapters/fabric] Org2's registrar enrolled successfully 2019.11.28-21:18:51.352 info [caliper] [adapters/fabric] Org1's admin's materials are successfully loaded 2019.11.28-21:18:51.361 info [caliper] [adapters/fabric] Org2's admin's materials are successfully loaded 2019.11.28-21:18:51.368 info [caliper] [adapters/fabric] client0.org1.example.com's materials are successfully loaded 2019.11.28-21:18:51.372 info [caliper] [adapters/fabric] client0.org2.example.com's materials are successfully loaded 2019.11.28-21:18:51.372 info [caliper] [adapters/fabric] Channel 'mychannel' definiton being retrieved from file 2019.11.28-21:18:51.404 info [caliper] [adapters/fabric] Channel 'mychannel' successfully created 2019.11.28-21:18:51.405 info [caliper] [adapters/fabric] Sleeping 5s... 2019.11.28-21:18:56.509 info [caliper] [adapters/fabric] Org1's peers successfully joined mychannel: peer0.org1.example.com 2019.11.28-21:18:56.664 info [caliper] [adapters/fabric] Org2's peers successfully joined mychannel: peer0.org2.example.com 2019.11.28-21:18:56.664 info [caliper] [adapters/fabric] Sleeping 5s... 2019.11.28-21:19:01.668 info [caliper] [adapters/fabric] Installing chaincodes for mychannel... 2019.11.28-21:19:01.749 info [caliper] [adapters/fabric] marbles@v0 successfully installed on Org1's peers: peer0.org1.example.com 2019.11.28-21:19:01.758 info [caliper] [adapters/fabric] marbles@v0 successfully installed on Org2's peers: peer0.org2.example.com 2019.11.28-21:19:01.771 info [caliper] [adapters/fabric] drm@v0 successfully installed on Org1's peers: peer0.org1.example.com 2019.11.28-21:19:01.778 info [caliper] [adapters/fabric] drm@v0 successfully installed on Org2's peers: peer0.org2.example.com 2019.11.28-21:19:01.793 info [caliper] [adapters/fabric] simple@v0 successfully installed on Org1's peers: peer0.org1.example.com 2019.11.28-21:19:01.798 info [caliper] [adapters/fabric] simple@v0 successfully installed on Org2's peers: peer0.org2.example.com 2019.11.28-21:19:01.811 info [caliper] [adapters/fabric] smallbank@v0 successfully installed on Org1's peers: peer0.org1.example.com 2019.11.28-21:19:01.816 info [caliper] [adapters/fabric] smallbank@v0 successfully installed on Org2's peers: peer0.org2.example.com 2019.11.28-21:19:01.816 info [caliper] [adapters/fabric] Instantiating marbles@v0 in mychannel. This might take some time... 2019.11.28-21:19:02.768 info [caliper] [adapters/fabric] Successfully instantiated marbles@v0 in mychannel 2019.11.28-21:19:02.771 info [caliper] [adapters/fabric] Instantiating drm@v0 in mychannel. This might take some time... 2019.11.28-21:19:03.582 info [caliper] [adapters/fabric] Successfully instantiated drm@v0 in mychannel 2019.11.28-21:19:03.583 info [caliper] [adapters/fabric] Instantiating simple@v0 in mychannel. This might take some time... 2019.11.28-21:19:05.382 info [caliper] [adapters/fabric] Successfully instantiated simple@v0 in mychannel 2019.11.28-21:19:05.384 info [caliper] [adapters/fabric] Instantiating smallbank@v0 in mychannel. This might take some time... 2019.11.28-21:19:06.711 info [caliper] [adapters/fabric] Successfully instantiated smallbank@v0 in mychannel 2019.11.28-21:19:06.713 info [caliper] [adapters/fabric] Sleeping 5s... 2019.11.28-21:19:12.943 info [caliper] [caliper-flow] Started monitors successfully 2019.11.28-21:19:12.945 info [caliper] [defaultTest] ####### Testing 'publish' ####### 2019.11.28-21:19:12.946 info [caliper] [defaultTest] ####### Testing 'query' ####### 2019.11.28-21:19:12.946 info [caliper] [caliper-flow] ---------- Finished Test ----------

2019.11.28-21:19:12.947 info [caliper] [report-builder] ### All test results ### 2019.11.28-21:19:12.947 error [caliper] [caliper-flow] Error: Error: Table must define at least one row. at exports.default.rows (/home/cse/node_modules/table/dist/validateTableData.js:26:11) at Object.exports.default [as table] (/home/cse/node_modules/table/dist/table.js:115:35) at Report.printTable (/home/cse/node_modules/@hyperledger/caliper-core/lib/report/report.js:133:23) at Report.printResultsByRound (/home/cse/node_modules/@hyperledger/caliper-core/lib/report/report.js:255:14) at Object.module.exports.run (/home/cse/node_modules/@hyperledger/caliper-core/lib/caliper-flow.js:119:20) at at process._tickCallback (internal/process/next_tick.js:189:7) 2019.11.28-21:19:13.949 info [caliper] [local-observer] [query Round undefined Transaction Info] - Submitted: 0 Succ: 0 Fail:0 Unfinished:0 2019.11.28-21:19:13.949 info [caliper] [caliper-utils] Executing command: cd /home/cse;docker-compose -f caliper/packages/caliper-samples/network/fabric-v1.4.1/2org1peergoleveldb/docker-compose.yaml down;(test -z \"$(docker ps -aq)\") || docker rm $(docker ps -aq);(test -z \"$(docker images dev -q)\") || docker rmi $(docker images dev -q);rm -rf /tmp/hfc-* Stopping peer0.org2.example.com ... done Stopping peer0.org1.example.com ... done Stopping ca.org2.example.com ... done Stopping ca.org1.example.com ... done Stopping orderer.example.com ... done Removing peer0.org2.example.com ... Removing peer0.org1.example.com ... Removing peer0.org2.example.com ... done Removing peer0.org1.example.com ... done Removing ca.org2.example.com ... done Removing ca.org1.example.com ... done Removing orderer.example.com ... done Removing network 2org1peergoleveldb_default /bin/sh: 1: test: "7d7da1d2ce61: unexpected operator 7d7da1d2ce61 f42d56f4c49d 1d55809fde9c 191425bfbaad fce0e857b977 a922579a8de4 7470b6a4673c 9031ebfcb42d docker: "images" requires a maximum of 1 argument. See 'docker images --help'.

Usage: docker images [OPTIONS] [REPOSITORY[:TAG]]

List images docker: "images" requires a maximum of 1 argument. See 'docker images --help'.

Usage: docker images [OPTIONS] [REPOSITORY[:TAG]]

List images docker: "rmi" requires a minimum of 1 argument. See 'docker rmi --help'.

Usage: docker rmi [OPTIONS] IMAGE [IMAGE...]

Remove one or more images Benchmark failure Error: Benchmark failure at Function.handler (/home/cse/node_modules/@hyperledger/caliper-cli/lib/benchmark/lib/runBenchmark.js:70:23) at at process._tickCallback (internal/process/next_tick.js:189:7) Command failed