PuTTY bug vt100-line-drawing-oprs

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summary: VT100 vertically offset horizontal line characters mis-displayed on Windows
class: bug: This is clearly an actual problem we want fixed.
difficulty: fun: Just needs tuits, and not many of them.
priority: high: This should be fixed in the next release.
present-in: 0.61
fixed-in: r9221 4fd112e15ddcc135980547147c44ff1afe04f00e 0.62

The VT100 line drawing character set contains four characters (encoded as o,p,r,s) which are vertically offset versions of the normal box-drawing horizontal line character (q). On Windows, PuTTY displays these by displaying the ordinary horizontal line with a vertical offset, since some fonts do not include the offset versions.

A bug in PuTTY's Windows text display code was causing other VT100 characters immediately to the right of one of those to be displayed using the same horizontal offset.

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Audit trail for this bug.

(last revision of this bug record was at 2016-12-27 11:40:21 +0000)