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formatting: fix docs

db4
Slava Pestov 2010-02-23 21:19:06 +13:00
parent 3d97bd2ae0
commit 050d042449
2 changed files with 14 additions and 14 deletions
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2
basis/formatting/formatting-docs.factor
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@ -36,7 +36,7 @@ HELP: printf
"For example:\n"
{ $list
"\"%5s\" formats a string padding with spaces up to 5 characters wide."
"\"%08d\" formats an integer padding with zeros up to 3 characters wide."
"\"%03d\" formats an integer padding with zeros up to 3 characters wide."
"\"%'#5f\" formats a float padding with '#' up to 3 characters wide."
"\"%-10d\" formats an integer to 10 characters wide and left-aligns."
}

26
basis/formatting/formatting.factor
View File

@ -12,18 +12,18 @@ IN: formatting
[ ] [ compose ] reduce ;
: fix-sign ( string -- string )
dup CHAR: 0 swap index 0 =
dup CHAR: 0 swap index 0 =
[ dup 0 swap [ [ CHAR: 0 = not ] keep digit? and ] find-from
[ dup 1 - rot dup [ nth ] dip swap
{
{ CHAR: - [ [ 1 - ] dip remove-nth "-" prepend ] }
{ CHAR: + [ [ 1 - ] dip remove-nth "+" prepend ] }
[ drop swap drop ]
} case
[ drop swap drop ]
} case
] [ drop ] if
] when ;
: >digits ( string -- digits )
: >digits ( string -- digits )
[ 0 ] [ string>number ] if-empty ;
: pad-digits ( string digits -- string' )
@ -33,20 +33,20 @@ IN: formatting
10^ [ * round ] keep / ; inline
: >exp ( x -- exp base )
[
[
abs 0 swap
[ dup [ 10.0 >= ] [ 1.0 < ] bi or ]
[ dup 10.0 >=
[ 10.0 / [ 1 + ] dip ]
[ 10.0 * [ 1 - ] dip ] if
] while
] while
] keep 0 < [ neg ] when ;
: exp>string ( exp base digits -- string )
[ max-digits ] keep -rot
[
[ 0 < "-" "+" ? ]
[ abs number>string 2 CHAR: 0 pad-head ] bi
[ abs number>string 2 CHAR: 0 pad-head ] bi
"e" -rot 3append
]
[ number>string ] bi*
@ -58,19 +58,19 @@ zero = "0" => [[ CHAR: 0 ]]
char = "'" (.) => [[ second ]]
pad-char = (zero|char)? => [[ CHAR: \s or ]]
pad-align = ("-")? => [[ \ pad-tail \ pad-head ? ]]
pad-align = ("-")? => [[ \ pad-tail \ pad-head ? ]]
pad-width = ([0-9])* => [[ >digits ]]
pad = pad-align pad-char pad-width => [[ reverse >quotation dup first 0 = [ drop [ ] ] when ]]
sign = ("+")? => [[ [ dup CHAR: - swap index [ "+" prepend ] unless ] [ ] ? ]]
width_ = "." ([0-9])* => [[ second >digits '[ _ short head ] ]]
width = (width_)? => [[ [ ] or ]]
width = (width_)? => [[ [ ] or ]]
digits_ = "." ([0-9])* => [[ second >digits ]]
digits = (digits_)? => [[ 6 or ]]
fmt-% = "%" => [[ [ "%" ] ]]
fmt-% = "%" => [[ [ "%" ] ]]
fmt-c = "c" => [[ [ 1string ] ]]
fmt-C = "C" => [[ [ 1string >upper ] ]]
fmt-s = "s" => [[ [ dup number? [ number>string ] when ] ]]
@ -78,7 +78,7 @@ fmt-S = "S" => [[ [ dup number? [ number>string ] when >upp
fmt-d = "d" => [[ [ >fixnum number>string ] ]]
fmt-e = digits "e" => [[ first '[ >exp _ exp>string ] ]]
fmt-E = digits "E" => [[ first '[ >exp _ exp>string >upper ] ]]
fmt-f = digits "f" => [[ first dup '[ >float _ max-digits number>string _ pad-digits ] ]]
fmt-f = digits "f" => [[ first dup '[ >float _ max-digits number>string _ pad-digits ] ]]
fmt-x = "x" => [[ [ >hex ] ]]
fmt-X = "X" => [[ [ >hex >upper ] ]]
unknown = (.)* => [[ "Unknown directive" throw ]]
@ -89,9 +89,9 @@ strings = pad width strings_ => [[ reverse compose-all ]]
numbers_ = fmt-d|fmt-e|fmt-E|fmt-f|fmt-x|fmt-X
numbers = sign pad numbers_ => [[ unclip-last prefix compose-all [ fix-sign ] append ]]
types = strings|numbers
types = strings|numbers
lists = "[%" types ", %]" => [[ second '[ _ map ", " join "{ " prepend " }" append ] ]]
lists = "[%" types ", %]" => [[ second '[ _ map ", " join "{ " prepend " }" append ] ]]
assocs = "[%" types ": %" types " %]" => [[ [ second ] [ fourth ] bi '[ unzip [ _ map ] dip _ map zip [ ":" join ] map ", " join "{ " prepend " }" append ] ]]