  Squiggle is a template-based glyph recognizer in the lineage of `$1
Recognizer' and `Protractor'. It seeks a good fit linear affine mapping between
the input and template glyphs which are represented as a list of milestone
points along the glyph path. The algorithm can recognize input glyphs invariant
of rotation, scaling, skew, and reflection symmetries. In practice the
algorithm is fast and robust enough to recognize user-generated glyphs as they
are being drawn in real time, and to project `shadows' of the matching
templates as feedback.
