+++ /dev/null
-Character classification
-
-\begin{code}
-module Ctype
- ( is_ident -- Char# -> Bool
- , is_symbol -- Char# -> Bool
- , is_any -- Char# -> Bool
- , is_space -- Char# -> Bool
- , is_lower -- Char# -> Bool
- , is_upper -- Char# -> Bool
- , is_digit -- Char# -> Bool
- , is_alphanum -- Char# -> Bool
-
- , is_hexdigit, is_octdigit
- , hexDigit, octDecDigit
- ) where
-
-#include "HsVersions.h"
-
-import DATA_INT ( Int32 )
-import DATA_BITS ( Bits((.&.)) )
-import Char ( ord, chr )
-\end{code}
-
-Bit masks
-
-\begin{code}
-cIdent, cSymbol, cAny, cSpace, cLower, cUpper, cDigit :: Int
-cIdent = 1
-cSymbol = 2
-cAny = 4
-cSpace = 8
-cLower = 16
-cUpper = 32
-cDigit = 64
-\end{code}
-
-The predicates below look costly, but aren't, GHC+GCC do a great job
-at the big case below.
-
-\begin{code}
-{-# INLINE is_ctype #-}
-is_ctype :: Int -> Char -> Bool
-is_ctype mask c = (fromIntegral (charType c) .&. fromIntegral mask) /= (0::Int32)
-
-is_ident, is_symbol, is_any, is_space, is_lower, is_upper, is_digit :: Char -> Bool
-is_ident = is_ctype cIdent
-is_symbol = is_ctype cSymbol
-is_any = is_ctype cAny
-is_space = is_ctype cSpace
-is_lower = is_ctype cLower
-is_upper = is_ctype cUpper
-is_digit = is_ctype cDigit
-is_alphanum = is_ctype (cLower+cUpper+cDigit)
-\end{code}
-
-Utils
-
-\begin{code}
-hexDigit :: Char -> Int
-hexDigit c | is_digit c = ord c - ord '0'
- | otherwise = ord (to_lower c) - ord 'a' + 10
-
-octDecDigit :: Char -> Int
-octDecDigit c = ord c - ord '0'
-
-is_hexdigit c
- = is_digit c
- || (c >= 'a' && c <= 'f')
- || (c >= 'A' && c <= 'F')
-
-is_octdigit c = c >= '0' && c <= '7'
-
-to_lower c
- | c >= 'A' && c <= 'Z' = chr (ord c - (ord 'A' - ord 'a'))
- | otherwise = c
-\end{code}
-
-We really mean .|. instead of + below, but GHC currently doesn't do
-any constant folding with bitops. *sigh*
-
-\begin{code}
-charType :: Char -> Int
-charType c = case c of
- '\0' -> 0 -- \000
- '\1' -> 0 -- \001
- '\2' -> 0 -- \002
- '\3' -> 0 -- \003
- '\4' -> 0 -- \004
- '\5' -> 0 -- \005
- '\6' -> 0 -- \006
- '\7' -> 0 -- \007
- '\8' -> 0 -- \010
- '\9' -> cAny + cSpace -- \t
- '\10' -> cSpace -- \n (not allowed in strings, so !cAny)
- '\11' -> cAny + cSpace -- \v
- '\12' -> cAny + cSpace -- \f
- '\13' -> cAny + cSpace -- ^M
- '\14' -> 0 -- \016
- '\15' -> 0 -- \017
- '\16' -> 0 -- \020
- '\17' -> 0 -- \021
- '\18' -> 0 -- \022
- '\19' -> 0 -- \023
- '\20' -> 0 -- \024
- '\21' -> 0 -- \025
- '\22' -> 0 -- \026
- '\23' -> 0 -- \027
- '\24' -> 0 -- \030
- '\25' -> 0 -- \031
- '\26' -> 0 -- \032
- '\27' -> 0 -- \033
- '\28' -> 0 -- \034
- '\29' -> 0 -- \035
- '\30' -> 0 -- \036
- '\31' -> 0 -- \037
- '\32' -> cAny + cSpace --
- '\33' -> cAny + cSymbol -- !
- '\34' -> cAny -- "
- '\35' -> cAny + cSymbol -- #
- '\36' -> cAny + cSymbol -- $
- '\37' -> cAny + cSymbol -- %
- '\38' -> cAny + cSymbol -- &
- '\39' -> cAny + cIdent -- '
- '\40' -> cAny -- (
- '\41' -> cAny -- )
- '\42' -> cAny + cSymbol -- *
- '\43' -> cAny + cSymbol -- +
- '\44' -> cAny -- ,
- '\45' -> cAny + cSymbol -- -
- '\46' -> cAny + cSymbol -- .
- '\47' -> cAny + cSymbol -- /
- '\48' -> cAny + cIdent + cDigit -- 0
- '\49' -> cAny + cIdent + cDigit -- 1
- '\50' -> cAny + cIdent + cDigit -- 2
- '\51' -> cAny + cIdent + cDigit -- 3
- '\52' -> cAny + cIdent + cDigit -- 4
- '\53' -> cAny + cIdent + cDigit -- 5
- '\54' -> cAny + cIdent + cDigit -- 6
- '\55' -> cAny + cIdent + cDigit -- 7
- '\56' -> cAny + cIdent + cDigit -- 8
- '\57' -> cAny + cIdent + cDigit -- 9
- '\58' -> cAny + cSymbol -- :
- '\59' -> cAny -- ;
- '\60' -> cAny + cSymbol -- <
- '\61' -> cAny + cSymbol -- =
- '\62' -> cAny + cSymbol -- >
- '\63' -> cAny + cSymbol -- ?
- '\64' -> cAny + cSymbol -- @
- '\65' -> cAny + cIdent + cUpper -- A
- '\66' -> cAny + cIdent + cUpper -- B
- '\67' -> cAny + cIdent + cUpper -- C
- '\68' -> cAny + cIdent + cUpper -- D
- '\69' -> cAny + cIdent + cUpper -- E
- '\70' -> cAny + cIdent + cUpper -- F
- '\71' -> cAny + cIdent + cUpper -- G
- '\72' -> cAny + cIdent + cUpper -- H
- '\73' -> cAny + cIdent + cUpper -- I
- '\74' -> cAny + cIdent + cUpper -- J
- '\75' -> cAny + cIdent + cUpper -- K
- '\76' -> cAny + cIdent + cUpper -- L
- '\77' -> cAny + cIdent + cUpper -- M
- '\78' -> cAny + cIdent + cUpper -- N
- '\79' -> cAny + cIdent + cUpper -- O
- '\80' -> cAny + cIdent + cUpper -- P
- '\81' -> cAny + cIdent + cUpper -- Q
- '\82' -> cAny + cIdent + cUpper -- R
- '\83' -> cAny + cIdent + cUpper -- S
- '\84' -> cAny + cIdent + cUpper -- T
- '\85' -> cAny + cIdent + cUpper -- U
- '\86' -> cAny + cIdent + cUpper -- V
- '\87' -> cAny + cIdent + cUpper -- W
- '\88' -> cAny + cIdent + cUpper -- X
- '\89' -> cAny + cIdent + cUpper -- Y
- '\90' -> cAny + cIdent + cUpper -- Z
- '\91' -> cAny -- [
- '\92' -> cAny + cSymbol -- backslash
- '\93' -> cAny -- ]
- '\94' -> cAny + cSymbol -- ^
- '\95' -> cAny + cIdent + cLower -- _
- '\96' -> cAny -- `
- '\97' -> cAny + cIdent + cLower -- a
- '\98' -> cAny + cIdent + cLower -- b
- '\99' -> cAny + cIdent + cLower -- c
- '\100' -> cAny + cIdent + cLower -- d
- '\101' -> cAny + cIdent + cLower -- e
- '\102' -> cAny + cIdent + cLower -- f
- '\103' -> cAny + cIdent + cLower -- g
- '\104' -> cAny + cIdent + cLower -- h
- '\105' -> cAny + cIdent + cLower -- i
- '\106' -> cAny + cIdent + cLower -- j
- '\107' -> cAny + cIdent + cLower -- k
- '\108' -> cAny + cIdent + cLower -- l
- '\109' -> cAny + cIdent + cLower -- m
- '\110' -> cAny + cIdent + cLower -- n
- '\111' -> cAny + cIdent + cLower -- o
- '\112' -> cAny + cIdent + cLower -- p
- '\113' -> cAny + cIdent + cLower -- q
- '\114' -> cAny + cIdent + cLower -- r
- '\115' -> cAny + cIdent + cLower -- s
- '\116' -> cAny + cIdent + cLower -- t
- '\117' -> cAny + cIdent + cLower -- u
- '\118' -> cAny + cIdent + cLower -- v
- '\119' -> cAny + cIdent + cLower -- w
- '\120' -> cAny + cIdent + cLower -- x
- '\121' -> cAny + cIdent + cLower -- y
- '\122' -> cAny + cIdent + cLower -- z
- '\123' -> cAny -- {
- '\124' -> cAny + cSymbol -- |
- '\125' -> cAny -- }
- '\126' -> cAny + cSymbol -- ~
- '\127' -> 0 -- \177
- '\128' -> 0 -- \200
- '\129' -> 0 -- \201
- '\130' -> 0 -- \202
- '\131' -> 0 -- \203
- '\132' -> 0 -- \204
- '\133' -> 0 -- \205
- '\134' -> 0 -- \206
- '\135' -> 0 -- \207
- '\136' -> 0 -- \210
- '\137' -> 0 -- \211
- '\138' -> 0 -- \212
- '\139' -> 0 -- \213
- '\140' -> 0 -- \214
- '\141' -> 0 -- \215
- '\142' -> 0 -- \216
- '\143' -> 0 -- \217
- '\144' -> 0 -- \220
- '\145' -> 0 -- \221
- '\146' -> 0 -- \222
- '\147' -> 0 -- \223
- '\148' -> 0 -- \224
- '\149' -> 0 -- \225
- '\150' -> 0 -- \226
- '\151' -> 0 -- \227
- '\152' -> 0 -- \230
- '\153' -> 0 -- \231
- '\154' -> 0 -- \232
- '\155' -> 0 -- \233
- '\156' -> 0 -- \234
- '\157' -> 0 -- \235
- '\158' -> 0 -- \236
- '\159' -> 0 -- \237
- '\160' -> cSpace --
- '\161' -> cAny + cSymbol -- ¡
- '\162' -> cAny + cSymbol -- ¢
- '\163' -> cAny + cSymbol -- £
- '\164' -> cAny + cSymbol -- ¤
- '\165' -> cAny + cSymbol -- ¥
- '\166' -> cAny + cSymbol -- ¦
- '\167' -> cAny + cSymbol -- §
- '\168' -> cAny + cSymbol -- ¨
- '\169' -> cAny + cSymbol -- ©
- '\170' -> cAny + cSymbol -- ª
- '\171' -> cAny + cSymbol -- «
- '\172' -> cAny + cSymbol -- ¬
- '\173' -> cAny + cSymbol --
- '\174' -> cAny + cSymbol -- ®
- '\175' -> cAny + cSymbol -- ¯
- '\176' -> cAny + cSymbol -- °
- '\177' -> cAny + cSymbol -- ±
- '\178' -> cAny + cSymbol -- ²
- '\179' -> cAny + cSymbol -- ³
- '\180' -> cAny + cSymbol -- ´
- '\181' -> cAny + cSymbol -- µ
- '\182' -> cAny + cSymbol -- ¶
- '\183' -> cAny + cSymbol -- ·
- '\184' -> cAny + cSymbol -- ¸
- '\185' -> cAny + cSymbol -- ¹
- '\186' -> cAny + cSymbol -- º
- '\187' -> cAny + cSymbol -- »
- '\188' -> cAny + cSymbol -- ¼
- '\189' -> cAny + cSymbol -- ½
- '\190' -> cAny + cSymbol -- ¾
- '\191' -> cAny + cSymbol -- ¿
- '\192' -> cAny + cIdent + cUpper -- À
- '\193' -> cAny + cIdent + cUpper -- Á
- '\194' -> cAny + cIdent + cUpper -- Â
- '\195' -> cAny + cIdent + cUpper -- Ã
- '\196' -> cAny + cIdent + cUpper -- Ä
- '\197' -> cAny + cIdent + cUpper -- Å
- '\198' -> cAny + cIdent + cUpper -- Æ
- '\199' -> cAny + cIdent + cUpper -- Ç
- '\200' -> cAny + cIdent + cUpper -- È
- '\201' -> cAny + cIdent + cUpper -- É
- '\202' -> cAny + cIdent + cUpper -- Ê
- '\203' -> cAny + cIdent + cUpper -- Ë
- '\204' -> cAny + cIdent + cUpper -- Ì
- '\205' -> cAny + cIdent + cUpper -- Í
- '\206' -> cAny + cIdent + cUpper -- Î
- '\207' -> cAny + cIdent + cUpper -- Ï
- '\208' -> cAny + cIdent + cUpper -- Ð
- '\209' -> cAny + cIdent + cUpper -- Ñ
- '\210' -> cAny + cIdent + cUpper -- Ò
- '\211' -> cAny + cIdent + cUpper -- Ó
- '\212' -> cAny + cIdent + cUpper -- Ô
- '\213' -> cAny + cIdent + cUpper -- Õ
- '\214' -> cAny + cIdent + cUpper -- Ö
- '\215' -> cAny + cSymbol + cLower -- ×
- '\216' -> cAny + cIdent + cUpper -- Ø
- '\217' -> cAny + cIdent + cUpper -- Ù
- '\218' -> cAny + cIdent + cUpper -- Ú
- '\219' -> cAny + cIdent + cUpper -- Û
- '\220' -> cAny + cIdent + cUpper -- Ü
- '\221' -> cAny + cIdent + cUpper -- Ý
- '\222' -> cAny + cIdent + cUpper -- Þ
- '\223' -> cAny + cIdent -- ß
- '\224' -> cAny + cIdent + cLower -- à
- '\225' -> cAny + cIdent + cLower -- á
- '\226' -> cAny + cIdent + cLower -- â
- '\227' -> cAny + cIdent + cLower -- ã
- '\228' -> cAny + cIdent + cLower -- ä
- '\229' -> cAny + cIdent + cLower -- å
- '\230' -> cAny + cIdent + cLower -- æ
- '\231' -> cAny + cIdent + cLower -- ç
- '\232' -> cAny + cIdent + cLower -- è
- '\233' -> cAny + cIdent + cLower -- é
- '\234' -> cAny + cIdent + cLower -- ê
- '\235' -> cAny + cIdent + cLower -- ë
- '\236' -> cAny + cIdent + cLower -- ì
- '\237' -> cAny + cIdent + cLower -- í
- '\238' -> cAny + cIdent + cLower -- î
- '\239' -> cAny + cIdent + cLower -- ï
- '\240' -> cAny + cIdent + cLower -- ð
- '\241' -> cAny + cIdent + cLower -- ñ
- '\242' -> cAny + cIdent + cLower -- ò
- '\243' -> cAny + cIdent + cLower -- ó
- '\244' -> cAny + cIdent + cLower -- ô
- '\245' -> cAny + cIdent + cLower -- õ
- '\246' -> cAny + cIdent + cLower -- ö
- '\247' -> cAny + cSymbol -- ÷
- '\248' -> cAny + cIdent -- ø
- '\249' -> cAny + cIdent + cLower -- ù
- '\250' -> cAny + cIdent + cLower -- ú
- '\251' -> cAny + cIdent + cLower -- û
- '\252' -> cAny + cIdent + cLower -- ü
- '\253' -> cAny + cIdent + cLower -- ý
- '\254' -> cAny + cIdent + cLower -- þ
- '\255' -> cAny + cIdent + cLower -- ÿ
-\end{code}
projects / ghc-hetmet.git / blobdiff