Difference: MicroSdBlocks (83 vs. 84)

Revision 842021-06-21 - PeterSchmid

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File Redirection

There are many Forth words to format a string e.g. emit, type or print something to the console. It is also possible to fetch user input like key, accept, etc. All these words can be used on files. Nothing new for a UNIX user. Mecrisp use hooks for redirection terminal IO, these hooks can also be used for file redirection.

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Step by Step Redirection to a File

Sample to use hook-emit for redirection output from ls -l to a file.

Open file test.tmp

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hook-emit ! ok.

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Redirection the Easy Way

create fil /FIL allot
256 buffer: path
path .str" test.tmp"
path fil f_open drop
>file ls -l
>term
>f_close drop

Some helper words in redirection.fs

: >f_open ( addr c-addr -- ior )  \ open a file to redirect to (emit, type, ...)

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