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Source for wiki QuoteDelimiter version 1

author

cowan

comment

ipnr

198.185.18.207

name

QuoteDelimiter

readonly

text

Survey of implementations to see which treat ' as a delimiter that terminates a symbol:

I tested `(list 'a'b)` on 42 Schemes.

Returned `(a b)`:  Racket, Gauche, MIT, Gambit, Chicken, Scheme48/scsh,
Kawa, Chibi, Chez, Vicare, NexJ, STklos, KSi, !SigScheme, Scheme 9, BDC,
XLisp, Rep, Oaklisp, Spark, Owl Lisp

Returned `(a'b)`:  Bigloo, Guile, SISC, SCM, Shoe, !TinyScheme, Dream,
Scheme 7, Schemik, Elk, UMB, VX, Sizzle, Inlab

Syntax error: Vicare, Ikarus, Mosh, !IronScheme, SXI, MScheme

I suspect that a lot of implementations think it's simplest to
just gobble up what they see until they get to an unquestioned
delimiter.

time

2012-05-17 03:40:23