HDevelop User's Manual

3.5. EXPRESSIONS FOR INPUT CONTROL PARAMETERS 71
always contains a radix character, even if no digits follow the radix character. For
and conversions, trailing zeros are not removed from the result, contrary to usual
behavior.
Ð ÛØ An optional string of decimal digits to specify a minimum field width. For an
output field, if the converted value has fewer characters than the field width, it is padded
on the left (or right, if the left-adjustment flag, - has been given) to the field width.
ÔÖ×ÓÒ The precision specifies the minimum number of digits to appear for the , Ó, Ü, or
conversions (the field is padded with leading zeros), the number of digits to appear after
the radix character for the e and f conversions, the maximum number of significant digits
for the conversion, or the maximum number of characters to be printed from a string
in s conversion. The precision takes the form of a period º followed by a decimal digit
string. A null digit string is treated as a zero.
ÓÒÚÖ×ÓÒ ÖØÖ× A conversion character indicates the type of conversion to be applied:
¸Ó¸Ü¸ The integer argument is printed in signed decimal (), unsigned octal (Ó),
or unsigned hexadecimal notation (Ü and ). The Ü conversion uses the numbers
and letters ¼½¾¿, andthe conversion uses the numbers and letters
¼½¾¿. The precision component of the argument specifies the minimum
number of digits to appear. If the value being converted can be represented
in fewer digits than the specified minimum, it is expanded with leading zeroes. The
default precision is 1. The result of converting a zero value with a precision of 0 is
no characters.
The floating-point number argument is printed in decimal notation in the style
¹℄Ö, where the number of digits after the radix character, Ö, isequalto
the precision specification. If the precision is omitted from the argument, six digits
are output; if the precision is explicitly 0, no radix appears.
¸ The floating-point-number argument is printed in the style ¹℄Ö·, where
there is one digit before the radix character, and the number of digits after it is
equal to the precision. When the precision is missing, six digits are produced; if the
precision is 0, no radix character appears. The conversion character produces a
number with introducing the exponent instead of . The exponent always contains
at least two digits. However, if the value to be printed requires an exponent greater
than two digits, additional exponent digits are printed as necessary.
¸ The floating-point-number argument is printed in style or (or in style in the case
of a conversion character), with the precision specifying the number of significant
digits. The style used depends on the value converted; style is used only if the
exponent resulting from the conversion is less than -h or greater than or equal to the
precision. Trailing zeros are removed from the result. A radix character appears
only if it is followed by a digit.
× The argument is taken to be a string, and characters from the string are printed until the
end of the string or the number of characters indicated by the precision specification
of the argument is reached. If the precision is omitted from the argument, it is
interpreted as infinite and all characters up to the end of the string are printed.
Similar to the s conversion specifier, except that the string can contain backslash-escape
sequences which are then converted to the characters they represent.
HALCON 6.0