StringFormatter

Specify the attribute(s) to reformat.

Provide the Tcl format command for reformatting the specified attributes. The syntax is:

  [flags][width][precision]<type>

Note: A preceding percent sign (%) is not part of the format string.

Flag Characters:

One or more of the following flag characters can be specified:

0   The value should be padded with zeroes instead of spaces.

-    The value should be padded on the right-hand side. (The default is to pad on the left.)

+   The numeric value should always be signed.

Field Width:

The optional field width is given as a decimal number. If the value has fewer characters than the field width, it will be padded with spaces.

Field Precision:

The optional precision is given as a period followed by a decimal number.

Attribute Type:

One of the following attribute types must be specified. The attribute value will be converted to the given type, if possible.

d   Integer

e   Decimal number (scientific notation: -d.ddde+dd)

f    Decimal number (floating-point notation: -ddd.ddd)

o   Octal number

x    Hexadecimal number

s   String

Examples:

If the source attribute contains the value spuds the following format strings will give the following results:

Format	Result
8s	spuds
-08s	spuds000

If the source attribute contains the value 12345.6789 the following format strings will give the following results:

Format	Result
e	1.234568e+004
.2f	12345.68
015s	0000012345.6789

If the source attribute contains the value 1234 the following format strings will give the following results:

Format	Result
x	4d2
4.4f	1234.0000
+06d	+01234