Guile Reference Manual
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.
