% package:percent-format

Formats a single value into a string without finalizing: leaving duplicate percent signs & remaining format sequences.

> "Hello %s!" % "World"
"Hello World!"

> "processor usage: %d%%" % 67
"processor usage: 67%%"

> "load avg: %.2f %.2f %.2f" % 0.666
"load avg: %0.67 %.2f %.2f"

Please use -% when formatting the last value into a string so that duplicate percent signs are removed.

Smart-constructor for Quotients

Formats two values into a string without finalizing: leaving duplicate percent signs & remaining format sequences.

> "%s %s!" %% ("Hello","World")
"Hello World!"

> "load avg: %.2f %.2f %.2f" %% (0.666,0.333)
"load avg: %0.67 %0.33 %.2f"

In general:

s %% (x,y) == s % x % y

Please use -%% if you don't intend to format values into a string any further.

Formats three values into a string without finalizing.

> "load avg: %.2f %.2f %.2f" %%% (0.666,0.333,0.1)
"load avg: %0.67 %0.33 %0.10"

Formats four values into a string without finalizing.

Formats five values into a string without finalizing.

Formats six values into a string without finalizing.

Just an alias to % for use whenever Data.Ratio is in scope.

import Data.Ratio
import Text.PercentFormat hiding ((%))
"..." +% 1 -% 2

Formats the last value into a string. This finalizes formatting, removing duplicate percent signs and replacing remaining format sequences with interrogation marks.

> "Hello %s!" -% "World"
"Hello World!"

> "processor usage: %d%%" -% 67
"processor usage: 67%"

> "load avg: %.2f %.2f %.2f" % 0.666
"load avg: %0.67 ? ?"

Please use % if you intend to further format values (chaining).

Formats two values into a string and finalizes it: removing duplicate percent signs & replacing remaining format sequences with interrogation marks.

> "%s %s!" -%% ("Hello","World")
"Hello World!"

> "load avg: %.2f %.2f %.2f" -%% (0.666,0.333)
"load avg: %0.67 %0.33 ?"

In general:

s -%% (x,y) == s % x -% y

Please use %% if you intend to further format values.

Formats three values into a string and finalizes it.

> "load avg: %.2f %.2f %.2f" -%%% (0.666,0.333,0.1)
"load avg: %0.67 %0.33 %0.10"

Formats four values into a string and finalizes it.

Formats five values into a string and finalizes it.

Formats six values into a stirng and finalizes it.

Replaces "%%" by "%". Any remaining occurrences of format strings are replaced by the given error character. Field width is respected when possible.

> "100%% %i" /% '?'
"100% ?"

> "100%% %03i" /% '?'
"100% ???"