print errors to STDERR

asked Aug 20, 2018 in Wanted features by valexiev (1,200 points)

As http://forum.plantuml.net/8086 shows, there error cases when puml calculates the needed error-image height a couple of pixels short, which may lead to confusion.
I think it would be best to also print out the errors to STDERR, in addition to the output image.

commented Sep 18, 2019 by valexiev (1,200 points)

'-pipeNoStdErr` already does a similar thing, see http://wiki.plantuml.net/site/command-line#standard_input_output . It prints errors on stdout preceded by the line "ERROR" and does not generate an image

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print errors to STDERR

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