### ----------------------------------------------------
### -- Format::Lisp
### -- Licenses: Artistic-2.0
### -- Authors: Jeffrey Goff
### -- File: t/17-format-d.rakutest
### ----------------------------------------------------
### -- Chunk 1 of 2
use v6;

use Test;
use lib 't/lib';
use Utils;
use Format::Lisp;

my $*fl = Format::Lisp.new;

subtest {
	is $*fl.format( Q{~D}, 27 ), Q{27}, Q{format.d.1 slice};

	is $*fl.format( Q{~@d}, 27 ), Q{+27}, Q{format.d.2 slice};
}, Q{missing coverage};

#`(
# (deftest format.d.1
#   (with-standard-io-syntax
#    (loop for x = (ash 1 (+ 2 (random 80)))
#          for i = (- (random (+ x x)) x)
#          for s1 = (format nil "~D" i)
#          for j = (read-from-string s1)
#          repeat 1000
#          when (or (/= i j)
#                   (find #\. s1)
#                   (find #\+ s1)
#                   (find-if #'alpha-char-p s1))
#          collect (list i s1 j)))
#   nil)
# 
ok deftest( {
	my @collected;
	for 1 .. 1000 {
		my $x = 1 >> ( 80.rand.Int + 2 );
		my $i = ( $x + $x ).rand.Int - $x;
		my $s1 = $*fl.format( Q{~D}, $i );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected]
}, [ ]
), Q{format.d.1};
)

#`(
# (deftest formatter.d.1
#   (let ((fn (formatter "~D")))
#     (with-standard-io-syntax
#      (loop for x = (ash 1 (+ 2 (random 80)))
#            for i = (- (random (+ x x)) x)
#            for s1 = (formatter-call-to-string fn i)
#            for j = (read-from-string s1)
#            repeat 1000
#            when (or (/= i j)
#                     (find #\. s1)
#                     (find #\+ s1)
#                     (find-if #'alpha-char-p s1))
#            collect (list i s1 j))))
#   nil)
# 
ok deftest( {
	my $fn = $*fl.formatter( Q{~D} );
	my @collected;
	for 1 .. 1000 {
		my $x = 1 >> ( 80.rand.Int + 2 );
		my $i = ( $x + $x ).rand.Int - $x;
		my $s1 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{formatter.d.1};
)

#`(
# (deftest format.d.2
#   (with-standard-io-syntax
#    (loop for x = (ash 1 (+ 2 (random 80)))
#          for i = (- (random (+ x x)) x)
#          for s1 = (format nil "~@d" i)
#          for j = (read-from-string s1)
#          repeat 1000
#          when (or (/= i j)
#                   (find #\. s1)
#                   ;; (find #\+ s1)
#                   (find-if #'alpha-char-p s1))
#          collect (list i s1 j)))
#   nil)
# 
ok deftest( {
	my @collected;
	for 1 .. 1000 {
		my $x = 1 >> ( 80.rand.Int + 2 );
		my $i = ( $x + $x ).rand.Int - $x;
		my $s1 = $*fl.format( Q{~@D}, $i );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{format.d.2};
)

#`(
# (deftest formatter.d.2
#   (let ((fn (formatter "~@D")))
#     (with-standard-io-syntax
#      (loop for x = (ash 1 (+ 2 (random 80)))
#            for i = (- (random (+ x x)) x)
#            for s1 = (formatter-call-to-string fn i)
#            for j = (read-from-string s1)
#            repeat 1000
#            when (or (/= i j)
#                     (find #\. s1)
#                     ;; (find #\+ s1)
#                     (find-if #'alpha-char-p s1))
#            collect (list i s1 j))))
#   nil)
# 
ok deftest( {
	my $fn = $*fl.formatter( Q{~@D} );
	my @collected;
	for 1 .. 1000 {
		my $x = 1 >> ( 80.rand.Int + 2 );
		my $i = ( $x + $x ).rand.Int - $x;
		my $s1 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{formatter.d.2};
)

#`(
# (deftest format.d.3
#   (with-standard-io-syntax
#    (loop for x = (ash 1 (+ 2 (random 80)))
#          for mincol = (random 30)
#          for i = (- (random (+ x x)) x)
#          for s1 = (format nil "~d" i)
#          for s2 = (format nil (format nil "~~~dd" mincol) i)
#          for pos = (search s1 s2)
#          repeat 1000
#          when (or (null pos)
#                   (and (> mincol (length s1))
#                        (or (/= (length s2) mincol)
#                            (not (eql (position #\Space s2 :test-not #'eql)
#                                      (- (length s2) (length s1)))))))
#          collect (list i mincol s1 s2 pos)))
#   nil)
# 
ok deftest( {
	my @collected;
	for 1 .. 1000 {
#		my $s1 = $c;
#		my $s2 = $*fl.format( Q{~a}, $s1 );
#		my $s3 = $*fl.formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{format.d.3};
)

#`(
# (deftest formatter.d.3
#   (with-standard-io-syntax
#    (loop for x = (ash 1 (+ 2 (random 80)))
#          for mincol = (random 30)
#          for i = (- (random (+ x x)) x)
#          for s1 = (format nil "~d" i)
#          for format-string = (format nil "~~~dd" mincol)
#          ; for s2 = (format nil format-string i)
#          for fn = (eval `(formatter ,format-string))
#          for s2 = (formatter-call-to-string fn i)
#          for pos = (search s1 s2)
#          repeat 100
#          when (or (null pos)
#                   (and (> mincol (length s1))
#                        (or (/= (length s2) mincol)
#                            (not (eql (position #\Space s2 :test-not #'eql)
#                                      (- (length s2) (length s1)))))))
#          collect (list i mincol s1 s2 pos)))
#   nil)
# 
ok deftest( {
	my @collected;
	for 1 .. 100 {
#		my $s1 = $c;
#		my $s2 = $*fl.format( Q{~a}, $s1 );
#		my $s3 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{formatter.d.3};
)

#`(
# (deftest format.d.4
#   (with-standard-io-syntax
#    (loop with limit = 10
#          with count = 0
#          for x = (ash 1 (+ 2 (random 80)))
#          for mincol = (random 30)
#          for i = (- (random (+ x x)) x)
#          for s1 = (format nil "~@D" i)
#          for format-string = (format nil "~~~d@d" mincol)
#          for s2 = (format nil format-string i)
#          for pos = (search s1 s2)
#          repeat 1000
#          when (or (null pos)
#                   (and (>= i 0) (not (eql (elt s1 0) #\+)))
#                   (and (> mincol (length s1))
#                        (or (/= (length s2) mincol)
#                            (not (eql (position #\Space s2 :test-not #'eql)
#                                      (- (length s2) (length s1)))))))
#          collect (if (> (incf count) limit)
#                      "Count limit exceeded"
#                      (list i mincol s1 format-string s2 pos))
#          while (<= count limit)))
#   nil)
# 
ok deftest( {
	my @collected;
	for 1 .. 1000 {
#		my $s1 = $c;
#		my $s2 = $*fl.format( Q{~a}, $s1 );
#		my $s3 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{format.d.4};
)

#`(
# (deftest formatter.d.4
#   (with-standard-io-syntax
#    (loop with limit = 10
#          with count = 0
#          for x = (ash 1 (+ 2 (random 80)))
#          for mincol = (random 30)
#          for i = (- (random (+ x x)) x)
#          for s1 = (format nil "~@D" i)
#          for format-string = (format nil "~~~d@d" mincol)
#          for fn = (eval `(formatter ,format-string))
#          for s2 = (formatter-call-to-string fn i)
#          for pos = (search s1 s2)
#          repeat 100
#          when (or (null pos)
#                   (and (>= i 0) (not (eql (elt s1 0) #\+)))
#                   (and (> mincol (length s1))
#                        (or (/= (length s2) mincol)
#                            (not (eql (position #\Space s2 :test-not #'eql)
#                                      (- (length s2) (length s1)))))))
#          collect (if (> (incf count) limit)
#                      "Count limit exceeded"
#                    (list i mincol s1 s2 pos))
#          while (<= count limit)))
#   nil)
# 
ok deftest( {
	my @collected;
	my $limit = 10;
	my $count = 0;
	for 1 .. 100 {
#		my $s1 = $c;
#		my $s2 = $*fl.format( Q{~a}, $s1 );
#		my $s3 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{formatter.d.4};
)

#`(
# (deftest format.d.5
#   (with-standard-io-syntax
#    (loop for x = (ash 1 (+ 2 (random 80)))
#          for mincol = (random 30)
#          for padchar = (random-from-seq +standard-chars+)
#          for i = (- (random (+ x x)) x)
#          for s1 = (format nil "~d" i)
#          for s2 = (format nil (format nil "~~~d,'~cd" mincol padchar) i)
#          for pos = (search s1 s2)
#          repeat 1000
#          when (or (null pos)
#                   (and (> mincol (length s1))
#                        (or (/= (length s2) mincol)
#                            (find padchar s2 :end (- (length s2) (length s1))
#                                  :test-not #'eql))))
#          collect (list i mincol s1 s2 pos)))
#   nil)
# 
ok deftest( {
	my @collected;
	for 1 .. 1000 {
#		my $s1 = $c;
#		my $s2 = $*fl.format( Q{~a}, $s1 );
#		my $s3 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{format.d.5};
)

#`(
# (deftest formatter.d.5
#   (with-standard-io-syntax
#    (loop for x = (ash 1 (+ 2 (random 80)))
#          for mincol = (random 30)
#          for padchar = (random-from-seq +standard-chars+)
#          for i = (- (random (+ x x)) x)
#          for s1 = (format nil "~d" i)
#          for format-string = (format nil "~~~d,'~cd" mincol padchar)
#          for fn = (eval `(formatter ,format-string))
#          for s2 = (formatter-call-to-string fn i)
#          for pos = (search s1 s2)
#          repeat 100
#          when (or (null pos)
#                   (and (> mincol (length s1))
#                        (or (/= (length s2) mincol)
#                            (find padchar s2 :end (- (length s2) (length s1))
#                                  :test-not #'eql))))
#          collect (list i mincol s1 s2 pos)))
#   nil)
# 
ok deftest( {
	my @collected;
	for 1 .. 100 {
#		my $s1 = $c;
#		my $s2 = $*fl.format( Q{~a}, $s1 );
#		my $s3 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected.elems;
}, [ ]
), Q{formatter.d.5};
)

#`(
# (deftest format.d.6
#   (let ((fn (formatter "~v,vd")))
#     (with-standard-io-syntax
#      (loop for x = (ash 1 (+ 2 (random 80)))
#            for mincol = (random 30)
#            for padchar = (random-from-seq +standard-chars+)
#            for i = (- (random (+ x x)) x)
#            for s1 = (format nil "~d" i)
#            for s2 = (format nil "~v,vD" mincol padchar i)
#            for s3 = (formatter-call-to-string fn mincol padchar i)
#            for pos = (search s1 s2)
#            repeat 1000
#            when (or (null pos)
#                     (not (string= s2 s3))
#                     (and (> mincol (length s1))
#                          (or (/= (length s2) mincol)
#                              (find padchar s2 :end (- (length s2) (length s1))
#                                    :test-not #'eql))))
#            collect (list i mincol s1 s2 s3 pos))))
#   nil)
# 
ok deftest( {
	my @collected;
	for 1 .. 1000 {
#		my $s1 = $c;
#		my $s2 = $*fl.format( Q{~a}, $s1 );
#		my $s3 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected.elems;
}, [ ]
), Q{format.d.6};
)

#`(
# (deftest format.d.7
#   (let ((fn (formatter "~v,v@D")))
#     (with-standard-io-syntax
#      (loop with limit = 10
#            with count = 0
#            for x = (ash 1 (+ 2 (random 80)))
#            for mincol = (random 30)
#            for padchar = (random-from-seq +standard-chars+)
#            for i = (- (random (+ x x)) x)
#            for s1 = (format nil "~@d" i)
#            for s2 = (format nil "~v,v@d" mincol padchar i)
#            for s3 = (formatter-call-to-string fn mincol padchar i)
#            for pos = (search s1 s2)
#            repeat 1000
#            when (or (null pos)
#                     (not (string= s2 s3))
#                     (and (>= i 0) (not (eql (elt s1 0) #\+)))
#                     (and (> mincol (length s1))
#                          (or (/= (length s2) mincol)
#                              (find padchar s2 :end (- (length s2) (length s1))
#                                    :test-not #'eql))))
#            collect (if (> (incf count) limit)
#                        "Count limit exceeded"
#                      (list i mincol s1 s2 s3 pos))
#            while (<= count limit))))
#   nil)
# 
ok deftest( {
	my @collected;
	my $limit = 10;
	my $count = 0;
	for 1 .. 1000 {
#		my $s1 = $c;
#		my $s2 = $*fl.format( Q{~a}, $s1 );
#		my $s3 = formatter-call-to-string( $fn, $s1 );
#		unless $s1 eq $s1 and $s2 eq $s3 {
#			@collected.append( [ $c, $s1, $s2, $s3 ] );
#		}
	}
	@collected;
}, [ ]
), Q{format.d.7};
)

subtest {
	1;
	#`(
	# (deftest format.d.8
	#   (let ((fn1 (formatter "~d"))
	#         (fn2 (formatter "~:d")))
	#     (loop for i from -999 to 999
	#           for s1 = (format nil "~d" i)
	#           for s2 = (format nil "~:d" i)
	#           for s3 = (formatter-call-to-string fn1 i)
	#           for s4 = (formatter-call-to-string fn2 i)
	#           unless (and (string= s1 s2) (string= s1 s3) (string= s1 s4))
	#           collect (list i s1 s2 s3 s4)))
	#   nil)
	# 
	ok deftest( {
		my $fn1 = $*fl.formatter( Q{~d} );
		my $fn2 = $*fl.formatter( Q{~:d} );
		my @collected;
		for -999 .. 999 -> $i {
	#		my $s1 = $c;
	#		my $s2 = $*fl.format( Q{~a}, $s1 );
	#		my $s3 = formatter-call-to-string( $fn, $s1 );
	#		unless $s1 eq $s1 and $s2 eq $s3 {
	#			@collected.append( [ $c, $s1, $s2, $s3 ] );
	#		}
		}
		@collected;
	}, [ ]
	), Q{format.d.8};
	)

	#`(
	# (deftest format.d.9
	#   (let ((fn1 (formatter "~d"))
	#         (fn2 (formatter "~:d")))
	#     (with-standard-io-syntax
	#      (loop for x = (ash 1 (+ 2 (random 80)))
	#            for i = (- (random (+ x x)) x)
	#            for commachar = #\,
	#            for s1 = (format nil "~d" i)
	#            for s2 = (format nil "~:d" i)
	#            for s3 = (formatter-call-to-string fn1 i)
	#            for s4 = (formatter-call-to-string fn2 i)
	#            repeat 1000
	#            unless (and (string= s1 s3)
	#                        (string= s2 s4)
	#                        (string= s1 (remove commachar s2))
	#                        (not (eql (elt s2 0) commachar))
	#                        (or (>= i 0) (not (eql (elt s2 1) commachar)))
	#                        (let ((len (length s2))
	#                              (ci+1 4))
	#                          (loop for i from (if (< i 0) 2 1) below len
	#                                always (if (= (mod (- len i) ci+1) 0)
	#                                           (eql (elt s2 i) commachar)
	#                                         (find (elt s2 i) "0123456789")))))
	#            collect (list x i commachar s1 s2 s3 s4))))
	#   nil)
	# 
	ok deftest( {
		my $fn1 = $*fl.formatter( Q{~d} );
		my $fn2 = $*fl.formatter( Q{~:d} );
		my @collected;
		for 1 .. 1000 {
	#		my $s1 = $c;
	#		my $s2 = $*fl.format( Q{~a}, $s1 );
	#		my $s3 = formatter-call-to-string( $fn, $s1 );
	#		unless $s1 eq $s1 and $s2 eq $s3 {
	#			@collected.append( [ $c, $s1, $s2, $s3 ] );
	#		}
		}
		@collected;
	}, [ ]
	), Q{format.d.9};
	)

	#`(
	# (deftest format.d.10
	#   (let ((fn (formatter "~,,v:d")))
	#     (with-standard-io-syntax
	#      (loop for x = (ash 1 (+ 2 (random 80)))
	#            for i = (- (random (+ x x)) x)
	#            for commachar = (random-from-seq +standard-chars+)
	#            for s1 = (format nil "~d" i)
	#            for s2 = (format nil "~,,v:d" commachar i)
	#            for s3 = (formatter-call-to-string fn commachar i)
	#            repeat 1000
	#            unless (and
	#                    (string= s2 s3)
	#                    (eql (elt s1 0) (elt s2 0))
	#                    (if (< i 0) (eql (elt s1 1) (elt s2 1)) t)
	#                    (let ((len (length s2))
	#                          (ci+1 4)
	#                          (j (if (< i 0) 1 0)))
	#                      (loop for i from (if (< i 0) 2 1) below len
	#                            always (if (= (mod (- len i) ci+1) 0)
	#                                       (eql (elt s2 i) commachar)
	#                                     (eql (elt s1 (incf j)) (elt s2 i))))))
	#            collect (list x i commachar s1 s2 s3))))
	#   nil)
	# 
	ok deftest( {
		my $fn = $*fl.formatter( Q{~,,v:d} );
		my @collected;
		for 1 .. 1000 {
	#		my $s1 = $c;
	#		my $s2 = $*fl.format( Q{~a}, $s1 );
	#		my $s3 = formatter-call-to-string( $fn, $s1 );
	#		unless $s1 eq $s1 and $s2 eq $s3 {
	#			@collected.append( [ $c, $s1, $s2, $s3 ] );
	#		}
		}
		@collected;
	}, [ ]
	), Q{format.d.10};
	)

	#`(
	# (deftest format.d.11
	#   (with-standard-io-syntax
	#    (loop for x = (ash 1 (+ 2 (random 80)))
	#          for i = (- (random (+ x x)) x)
	#          for commachar = (random-from-seq +standard-chars+)
	#          for s1 = (format nil "~d" i)
	#          for format-string = (format nil "~~,,'~c:d" commachar)
	#          for s2 = (format nil format-string i)
	#          repeat 1000
	#          unless (and
	#                  (eql (elt s1 0) (elt s2 0))
	#                  (if (< i 0) (eql (elt s1 1) (elt s2 1)) t)
	#                  (let ((len (length s2))
	#                       (ci+1 4)
	#                       (j (if (< i 0) 1 0)))
	#                   (loop for i from (if (< i 0) 2 1) below len
	#                         always (if (= (mod (- len i) ci+1) 0)
	#                                    (eql (elt s2 i) commachar)
	#                                  (eql (elt s1 (incf j)) (elt s2 i))))))
	#          collect (list x i commachar s1 s2)))
	#   nil)
	# 
	ok deftest( {
		my @collected;
		for 1 .. 1000 {
	#		my $s1 = $c;
	#		my $s2 = $*fl.format( Q{~a}, $s1 );
	#		my $s3 = formatter-call-to-string( $fn, $s1 );
	#		unless $s1 eq $s1 and $s2 eq $s3 {
	#			@collected.append( [ $c, $s1, $s2, $s3 ] );
	#		}
		}
		@collected;
	}, [ ]
	), Q{format.d.11};
	)

	#`(
	# (deftest formatter.d.11
	#   (with-standard-io-syntax
	#    (loop for x = (ash 1 (+ 2 (random 80)))
	#          for i = (- (random (+ x x)) x)
	#          for commachar = (random-from-seq +standard-chars+)
	#          for s1 = (format nil "~d" i)
	#          for format-string = (format nil "~~,,'~c:d" commachar)
	#          for fn = (eval `(formatter ,format-string))
	#          ; for s2 = (format nil format-string i)
	#          for s2 = (formatter-call-to-string fn i)
	#          repeat 100
	#          unless (and
	#                  (eql (elt s1 0) (elt s2 0))
	#                  (if (< i 0) (eql (elt s1 1) (elt s2 1)) t)
	#                  (let ((len (length s2))
	#                       (ci+1 4)
	#                       (j (if (< i 0) 1 0)))
	#                   (loop for i from (if (< i 0) 2 1) below len
	#                         always (if (= (mod (- len i) ci+1) 0)
	#                                    (eql (elt s2 i) commachar)
	#                                  (eql (elt s1 (incf j)) (elt s2 i))))))
	#          collect (list x i commachar s1 s2)))
	#   nil)
	# 
	ok deftest( {
		my @collected;
		for 1 .. 100 {
	#		my $s1 = $c;
	#		my $s2 = $*fl.format( Q{~a}, $s1 );
	#		my $s3 = formatter-call-to-string( $fn, $s1 );
	#		unless $s1 eq $s1 and $s2 eq $s3 {
	#			@collected.append( [ $c, $s1, $s2, $s3 ] );
	#		}
		}
		@collected;
	}, [ ]
	), Q{formatter.d.11};
	)

	#`(
	# (deftest format.d.12
	#   (let ((fn (formatter "~,,v,v:d")))
	#     (with-standard-io-syntax
	#      (loop for x = (ash 1 (+ 2 (random 80)))
	#            for i = (- (random (+ x x)) x)
	#            for commachar = (random-from-seq +standard-chars+)
	#            for commaint = (1+ (random 20))
	#            for s1 = (format nil "~d" i)
	#            for s2 = (format nil "~,,v,v:D" commachar commaint i)
	#            for s3 = (formatter-call-to-string fn commachar commaint i)
	#            repeat 1000
	#            unless (and
	#                    (string= s2 s3)
	#                    (eql (elt s1 0) (elt s2 0))
	#                    (if (< i 0) (eql (elt s1 1) (elt s2 1)) t)
	#                    (let ((len (length s2))
	#                          (ci+1 (1+ commaint))
	#                          (j (if (< i 0) 1 0)))
	#                      (loop for i from (if (< i 0) 2 1) below len
	#                            always (if (= (mod (- len i) ci+1) 0)
	#                                       (eql (elt s2 i) commachar)
	#                                     (eql (elt s1 (incf j)) (elt s2 i))))))
	#            collect (list x i commachar s1 s2 s3))))
	#   nil)
	# 
	ok deftest( {
		my $fn = $*fl.formatter( Q{~,,v,v:d} );
		my @collected;
		for 1 .. 1000 {
	#		my $s1 = $c;
	#		my $s2 = $*fl.format( Q{~a}, $s1 );
	#		my $s3 = formatter-call-to-string( $fn, $s1 );
	#		unless $s1 eq $s1 and $s2 eq $s3 {
	#			@collected.append( [ $c, $s1, $s2, $s3 ] );
	#		}
		}
		@collected;
	}, [ ]
	), Q{format.d.12};
	)

	#`(
	# (deftest format.d.13
	#   (let ((fn (formatter "~,,v,v:@D")))
	#     (with-standard-io-syntax
	#      (loop for x = (ash 1 (+ 2 (random 80)))
	#            for i = (- (random (+ x x)) x)
	#            for commachar = (random-from-seq +standard-chars+)
	#            for commaint = (1+ (random 20))
	#            for s1 = (format nil "~@d" i)
	#            for s2 = (format nil "~,,v,v:@d" commachar commaint i)
	#            for s3 = (formatter-call-to-string fn commachar commaint i)
	#            repeat 1000
	#            unless (and
	#                    (eql (elt s1 0) (elt s2 0))
	#                    (eql (elt s1 1) (elt s2 1))
	#                    (let ((len (length s2))
	#                          (ci+1 (1+ commaint))
	#                          (j 1))
	#                      (loop for i from 2 below len
	#                            always (if (= (mod (- len i) ci+1) 0)
	#                                       (eql (elt s2 i) commachar)
	#                                     (eql (elt s1 (incf j)) (elt s2 i))))))
	#            collect (list x i commachar s1 s2 s3))))
	#   nil)
	# 
	ok deftest( {
		my $fn = $*fl.formatter( Q{~,,v,v:@D} );
		my @collected;
		for 1 .. 1000 {
	#		my $s1 = $c;
	#		my $s2 = $*fl.format( Q{~a}, $s1 );
	#		my $s3 = formatter-call-to-string