Not all leading tab characters in diagnostic messages are replaced with spaces
#41.268 aberto em 27 de out. de 2020
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Description
The error diagnostics that are used by default do not replace ALL leading tab characters with a single space.
As one would expect from seeing this code line in souce code: https://github.com/microsoft/TypeScript/blob/85ef91e2233fa384e980005c109fadc04376ce3e/src/compiler/program.ts#L410
This line only replaces the first leading tab character. Which causes way too much leading whitespace printed in the logs when errors occur during tsc build.
TypeScript Version: 4.0.3
Search Terms: tabs diagnostics, reporter, formatCodeSpan, formatDiagnosticsWithColorAndContext, leading tabs,
Expected behavior: Source code has four leading tabs for indentation.
[line number] [gutter seperator] [space] [space] [space] [space] [line content]
Actual behavior:
[line number] [gutter seperator] [space] [tab] [tab] [tab] [line content]
PR
I can submit a PR for this that would change this line:
lineContent = lineContent.replace("\t", " "); // convert tabs to single spaces
to:
lineContent = lineContent.replace(/\t/gy, " "); // convert all leading tabs to single spaces