text_util: add functions to truncate labeled text #4665
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This function mirrors elide_start(), literally. We don't have any callers for the moment, but it helps write tests of inner truncation helpers. I'm going to add bytes version of these functions to implement "truncate" template functions.
This will be used by truncate_start/end() template functions. I considered adding a template function that supports both padding and truncation, but the function interface looked a bit messy. There may be (max_width, ellipsis, left|middle|right) parameters for truncation, and (min_width, fill_char, left|center|right) for padding. I'm not going to add ellipsis and centering support, but it's weird if pad(center) implied truncate(middle).
martinvonz
approved these changes
Oct 17, 2024
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