65 lines
1.1 KiB
Plaintext
65 lines
1.1 KiB
Plaintext
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This file documents names defined in toothless.scm
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NOTES
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toothless.scm defines a Scheme 48 module that is R4RS without features
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that could examine or effect the file system. You can also use it as a
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model of how to execute code in other protected environments in S48.
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DEFINITIONS AND DESCRIPTIONS
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structure
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loser-package
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Exports:
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procedure
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loser name --> error
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Raises an error like "Illegal call NAME".
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structure
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toothless
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Exports everything of R4RS. Following procedures are redefined, so
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they raise an error if the are called:
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call-with-input-file
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call-with-output-file
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load
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open-input-file
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open-output-file
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transcript-on
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with-input-from-file
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with-input-to-file
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eval
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interaction-environment
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scheme-report-environment
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toothless shall create an environment as described in NOTES.
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structure
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toothless-eval
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Exports:
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procedure
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eval-safely expression
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Creates a brand new package, imports the TOOTHLESS structure, and
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evaluates EXP in it. When the evaluation is done, the environment is
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thrown away, so EXP's side-effects don't persist from one EVAL-SAFELY
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call to the next. If EXP raises an error exception, we abort and
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return #f.
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