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add examples to read-language docs

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Stephen Chang 2012-06-25 19:45:35 -04:00
parent cb88590dfb
commit 91ea9ab309
1 changed files with 6 additions and 1 deletions
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7
collects/scribblings/reference/read.scrbl
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@ -135,9 +135,14 @@ function (if any) exported by the same module. The result of the
The function produced by @racketidfont{get-info} reflects information The function produced by @racketidfont{get-info} reflects information
about the expected syntax of the input stream. The first argument to the about the expected syntax of the input stream. The first argument to the
function serves as a key on such information; acceptable keys and the function serves as a key on such information; acceptable keys and the
interpretation of results is up to external tools, such as DrRacket. interpretation of results is up to external tools, such as DrRacket (see
@hyperlink["http://docs.racket-lang.org/tools/drracket_module-language-tools.html"]{module-language-tools}).
If no information is available for a given key, the result should be If no information is available for a given key, the result should be
the second argument. the second argument.
@mz-examples[
((read-language (open-input-string "#lang algol60")) 'color-lexer #f)
((read-language (open-input-string "#lang algol60")) 'something-else #f)
]
The @racketidfont{get-info} function itself is applied to five The @racketidfont{get-info} function itself is applied to five
arguments: the input port being read, the module path from which the arguments: the input port being read, the module path from which the