[iip] Inter-character spacing is not adjusted for narrow columns (#80)

r12a has just created a new issue for https://github.com/w3c/iip:

== Inter-character spacing is not adjusted for narrow columns ==
Justification of Tamil in narrow columns of text can lead to large blank spaces between words, or a loss of justification when only one word fits on a line. To mitigate this, especially in the absence of hyphenation, lines that are justified in Tamil should automatically add inter-character adjustments.

Those adjustments, however, should equally expand the space between all unconnected, spacing glyphs (including the space between various vowel-signs and their base), rather than solely put space around syllables or grapheme clusters.

When only one word fits on a line, that word should be stretched to fit the whole line.

<span class="fail">None</span> of the major browsers automatically does anything other than stretch inter-character space at the moment.

An <a href="https://w3c.github.io/i18n-tests/css-text/interactive/int-text-justify-000.html">interactive test</a> is available, and a <a href="https://github.com/w3c/i18n-tests/wiki/Test-script-for-text-justify">test script</a>.

The impact of this is marked as advanced, because oversized gaps in text seem to be fairly common in Tamil printed materials, but perhaps this should be basic instead?

Please view or discuss this issue at https://github.com/w3c/iip/issues/80 using your GitHub account

Received on Tuesday, 4 February 2020 18:35:19 UTC