SEARCH_PROG([for a DVI previewer],DVI_VIEWER, xdvi windvi yap)
# Search something to preview html
SEARCH_PROG([for a DVI previewer],DVI_VIEWER, xdvi windvi yap)
# Search something to preview html
# Search for a program to preview latex code
SEARCH_PROG([for a LaTeX preview],LATEX_VIEWER, "xterm -e less")
# Search for a program to preview latex code
SEARCH_PROG([for a LaTeX preview],LATEX_VIEWER, "xterm -e less")