iimage-mode-image-regex-alist

iimage-mode-image-regex-alist is a variable defined in `iimage.el'.
Its value is

(("\\(`?file://\\|\\[\\[\\|<\\|`\\)?\\([-+./_0-9a-zA-Z]+\\.\\(GIF\\|JP\\(?:E?G\\)\\|P\\(?:BM\\|GM\\|N[GM]\\|PM\\)\\|SVG\\|TIFF?\\|X\\(?:[BP]M\\)\\|gif\\|jp\\(?:e?g\\)\\|p\\(?:bm\\|gm\\|n[gm]\\|pm\\)\\|svg\\|tiff?\\|x\\(?:[bp]m\\)\\)\\)\\(\\]\\]\\|>\\|'\\)?" . 2))

Documentation:
Alist of filename REGEXP vs NUM.
Each element looks like (REGEXP . NUM).
NUM specifies which parenthesized expression in the regexp.

Examples of image filename patterns to match:
file://foo.png
`file://foo.png'
M-x \[foo.gif]

foo.JPG


You can customize this variable.