[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
#1720: r7rs "write" procedure does not escape "invalid" symbols
From: |
Chicken Trac |
Subject: |
#1720: r7rs "write" procedure does not escape "invalid" symbols |
Date: |
Sun, 30 Aug 2020 10:04:34 -0000 |
#1720: r7rs "write" procedure does not escape "invalid" symbols
-----------------------------------+---------------------
Reporter: Duy Nguyen | Type: defect
Status: new | Priority: major
Milestone: someday | Component: unknown
Version: 5.2.0 | Keywords:
Estimated difficulty: |
-----------------------------------+---------------------
r7rs defines an alternative way to present a symbol that's otherwise
invalid identifiers, by putting it inside `||`. This is implementation-
specific in r5rs.
The problem can be seen with `(write (features))` where 64bit is not
escaped (i.e. |64bit|) while it is for all the r7rs schemes I have my
hands on.
This is not a problem when within chicken because both the reader and
writer are in sync. I found this out because I updated chibi-snow to read
`(features)` from chicken. Chibi does not like '64bit' symbol without
ecaping.
--
Ticket URL: <https://bugs.call-cc.org/ticket/1720>
CHICKEN Scheme <https://www.call-cc.org/>
CHICKEN Scheme is a compiler for the Scheme programming language.
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- #1720: r7rs "write" procedure does not escape "invalid" symbols,
Chicken Trac <=