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added with-in/out from/to string for Bloch

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svn: r17453
This commit is contained in:
Matthias Felleisen 2009-12-31 14:50:47 +00:00
parent 0d16beda3c
commit 7f2bce0130
1 changed files with 11 additions and 5 deletions
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16
collects/lang/private/advanced-funs.ss
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@ -5,6 +5,7 @@
mzlib/pretty
syntax/docprovide
scheme/promise
scheme/port
"../posn.ss"
(for-syntax scheme/base))
@ -12,6 +13,16 @@
procedures
("Reading and Printing"
(with-input-from-file (string (-> any) -> any)
"to open the named input file and to extract all input from there")
(with-output-to-file (string (-> any) -> any)
"to open the named output file and to put all output there")
(with-input-from-string (string (-> any) -> any)
"to turn the given string into input for read* operations")
(with-output-to-string (string (-> any) -> any)
"to produce a string from all write/display/print operations")
(print (any -> void)
"to print the argument as a value to stdout")
(display (any -> void)
@ -53,11 +64,6 @@
(current-milliseconds (-> exact-integer)
"to return the current “time” in fixnum milliseconds (possibly negative)")
(with-input-from-file (string (-> any) -> any)
"to open the given string as an input file and to make it the current input port")
(with-output-to-file (string (-> any) -> any)
"to open the given string as an output file and to make it the current output port")
(force (delay -> any) "to find the delayed value; see also delay")
(promise? (any -> boolean) "to determine if a value is delayed")
(void (-> void) "produces a void value")