Commit d637f9bc authored by Thomas Schilling's avatar Thomas Schilling
Browse files

Add zeroWidthText to Pretty.

parent 99d5f763
......@@ -163,7 +163,7 @@ module Pretty (
empty, isEmpty, nest,
char, text, ftext, ptext,
char, text, ftext, ptext, zeroWidthText,
int, integer, float, double, rational,
parens, brackets, braces, quotes, doubleQuotes,
semi, comma, colon, space, equals,
......@@ -224,6 +224,10 @@ The primitive @Doc@ values
\begin{code}
empty :: Doc
isEmpty :: Doc -> Bool
-- | Some text, but without any width. Use for non-printing text
-- such as a HTML or Latex tags
zeroWidthText :: String -> Doc
text :: String -> Doc
char :: Char -> Doc
......@@ -560,6 +564,7 @@ ftext s = case iUnbox (lengthFS s) of {sl -> textBeside_ (PStr s) sl Empty}
ptext :: LitString -> Doc
ptext s_= case iUnbox (lengthLS s) of {sl -> textBeside_ (LStr s sl) sl Empty}
where s = {-castPtr-} s_
zeroWidthText s = textBeside_ (Str s) (_ILIT(0)) Empty
#if defined(__GLASGOW_HASKELL__)
-- RULE that turns (text "abc") into (ptext (A# "abc"#)) to avoid the
......
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