fmt, strfmt - formatted output


<fmt format [arg ...]>
<strfmt format [arg ...]>

The fmt function allows flexible control over how variables are printed. It behaves much like the standard C function printf(), with additional formats for URL escapement, query markup, date/time printing, etc. The function strfmt is the string version - its output becomes the value of $ret instead of being printed out.

The format argument controls the output. Each format code in it - a % followed by one or more letters - indicates how to print the next remaining argument. Any escape sequences - a backslash (\) followed by a letter - indicate non-text characters to print. Any other letters in the format string are printed as-is.

fmt returns nothing. strfmt returns the formatted output as a string in $ret.

The fmt function was added Sep. 20 1996. strfmt was added Jan. 30 1997.

Only the first value of multi-value arguments is currently used. Giving too many or too few arguments for the format will result in an error message to that effect.

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