SRFI-13's string comparison procedures return integers

[Mario Domenech Goulart]

CHICKEN procedures from the srfi-13 unit for string comparison return integers, while SRFI-13 (and the wiki documentation for SRFI-13) state that they return booleans.

The following SRFI-13 procedures (and their case-insensitive counterparts) return integers in chicken:

• string=
• string<>
• string<=
• string<
• string>=
• string>

I'm not sure if the behavior of these procedures in CHICKEN deviate from SRFI-13's by design or if it is really a bug.

If that's the intended behavior, we have to fix the documentation and add a note about that deviation.

[Jim Ursetto]

Ref impl is obviously wrong and the bug was propagated to Chicken. It uses string-compare's PROC= branch and returns its value and, as string-compare states, "in the case of PROC=, it is always END1" -- not a boolean. Changing "values" to (lambda (i) (and i)) should fix it.

Question is, who is right--the guy that wrote the srfi, or the guy that wrote the reference implementation.

The answer is they are both right. Please, put down the Sig Sauer, I beg you.

[Jim Ursetto]

Eh, here's a patch. Barely tested, I only checked string= and string<>.

[sjamaan]

Fixed by abf5ae1e4a5025cbf03b24c6ce8574ceb5af12b1