eldo_user

Eldo Control Language
Library of Functions for Tasks
fscan
Task function category: Functions Operating on Files
Returns the number of elements that have been parsed. It has the same behavior as the C fscanf
function.
Usage
fscan(FILE, FORMAT, [,ARG]*)
Arguments
• FILE
File variable.
• FORMAT
FORMAT is a string that contains:
whitespace characters (space, newline and tab characters); they are read and ignored.
non-whitespace characters: sscan will read one character from STR_TO_PARSE and if
it does not match then sscan will return, otherwise the processing of the FORMAT
string continues.
format tags that must follow this specification:
%[*][width]specifier
where:
specifier is:
c for a character
d or i or u for an integer number
e, E, f, g, or G for a double-precision floating-point number
s for a string
x or X for an hexadecimal integer number
% to read the % character
* specifies that the corresponding data must be read but ignored; no argument must
be added for it.
width specifies the maximum number of characters to read.
An argument of the corresponding type must be specified for each format tag present in the
FORMAT argument (except for a format tag preceded with *).
• ARG
Optional. An argument of the corresponding type must be specified for each format tag
present in the FORMAT argument.
908
Eldo® User's Manual, 15.3