(guile.info.gz) Executing Scheme code
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(guile.info.gz) Defining new Scheme procedures in C
19.6 Executing Scheme code
==========================
Once you have an interpreter running, you can ask it to evaluate Scheme
code. There are two calls that implement this:
-- Function: SCM gh_eval_str (char *SCHEME_CODE)
This asks the interpreter to evaluate a single string of Scheme
code, and returns the result of the last expression evaluated.
Note that the line of code in SCHEME_CODE must be a well formed
Scheme expression. If you have many lines of code before you
balance parentheses, you must either concatenate them into one
string, or use `gh_eval_file()'.
-- Function: SCM gh_eval_file (char *FNAME)
-- Function: SCM gh_load (char *FNAME)
`gh_eval_file' is completely analogous to `gh_eval_str()', except
that a whole file is evaluated instead of a string.
`gh_eval_file' returns `SCM_UNSPECIFIED'.
`gh_load' is identical to `gh_eval_file' (it's a macro that calls
`gh_eval_file' on its argument). It is provided to start making
the `gh_' interface match the R5RS Scheme procedures closely.
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(guile.info.gz) Defining new Scheme procedures in C
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