The CountIntegers(file) command counts the number of integers from the current position in file to the end of file.

The CountIntegers function returns the number of times ReadNextInteger can be called before the end of the file is reached.

An error is raised if file is not a valid descriptor or if it is the name of a file that does not exist.

$\mathrm{FileTools}\left[\mathrm{Text}\right]\left[\mathrm{WriteString}\right]\left(''foo''\,''1\backslash n2\backslash n3\backslash nabcd\; 1234\; ege\backslash n\backslash n4\backslash n5''\right)$

$24$

$\mathrm{FileTools}\left[\mathrm{Text}\right]\left[\mathrm{Close}\right]\left(''foo''\right)\:$

$\mathrm{FileTools}\left[\mathrm{Text}\right]\left[\mathrm{CountIntegers}\right]\left(''foo''\right)$

$6$

$\mathrm{FileTools}\left[\mathrm{Remove}\right]\left(''foo''\right)\:$