Implement CQL Substring operator #117
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| // Special case: If string is empty and startIndex is 0, return empty string | ||
| if stringLen == 0 && startIndex == 0 { | ||
| return result.New("") | ||
| } |
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what should Substring('', 0) produce? The current code returns an empty string instead of Null (it seems reasonable to get the identical string when doing Substring(str, 0) == str to me). The spec would probably imply Null instead of empty string though. Could be worth clarifying/discussing, happy to change that back to the strict spec behavior.
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I think empty string is reasonable here.
I put up a change on the cqltests repo with this as a suggested new case cqframework/cql-tests#55
| wantResult: newOrFatal(t, -1), | ||
| }, | ||
| } | ||
| { |
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Note that these changes are because gofmt was not applied to the file on main. We should consider ensuring all files submitted to main are gofmt'd
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Yeah, agreed that we should add a check for this in the pipeline.
| wantResult: newOrFatal(t, nil), | ||
| }, | ||
| { | ||
| name: "Substring('😊😊😊', 1) -> 😊😊 (Unicode)", |
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This commit introduces the implementation for the CQL Substring operator. * Initial jules implementation * Correctly support startIndex=stringLen case, correct tests * Refactor for readability Author: Suyash Kumar <suyashkumar2003@gmail.com>
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Hm I rebased and squashed the commit, not sure why the copybara import is failing. Any logs on your end? I could also try opening a new PR |
I reran the pipeline with debugging enabled and it looks there might be a real failure related to the rebase? PTAL. If it still looks wonky and tests pass locally then yeah we should just consider a different PR. |
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Sounds good! The tests should all pass. Lmk if copybara still complains and I'll open a new PR. |
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This implements the CQL Substring operator.
One interesting note: what should
Substring('', 0)produce? The current code returns an empty string instead of Null (it seems reasonable to get the identical string when doingSubstring(str, 0) == strto me). The spec would probably imply Null. Could be worth clarifying/discussing, happy to change that back.Some code generated with the help of https://github.com/apps/google-labs-jules !