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adjust_point_for_property should be sufficient by default.

pattern is only matched at the beginning of a string.
From Markus Rost <rost@math.ohio-state.edu>.

#xe0..#xef.

of the image data for XPM, XBM and Postscript, which are
text files.
(image-jpeg-p): Correct computatino of next field offset.

JPEG images are recognized.
(image-jpeg-p): New function.
(image-type-from-data): Handle predicates in image-type-regexps.

derived from the JPEG spec.

most regular expressions.

to `postscript'.

(put-image, insert-image): Make STRING arg optional.

if it isn't bound.

(defimage): Rewritten to find image at load time.

string.

instead of :file.
(image-type-from-data): New function.
(image-type-from-file-header): Use it.
(create-image): Add parameter DATA-P.