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Source for ticket #361

cc


    
changetime

    
2012-07-11 01:20:04

    
component

    
WG1 - Core

    
description

    
Pro: Unifies string and symbol syntax, which are almost the same anyway.  Frees up `|` and `\` for other uses.  Easy to implement.  See also #360.

Con: Nobody implements or uses this, whereas `|...|` is widespread in R5RS systems and `\` is required in R6RS systems.

    
id

    
361

    
keywords

    

    
milestone

    

    
owner

    
alexshinn

    
priority

    
major

    
reporter

    
cowan

    
resolution

    
wontfix

    
severity

    

    
status

    
closed

    
summary

    
Change syntax of escaped symbols from |...| to #"..."

    
time

    
2012-03-13 00:40:34

    
type

    
defect

    
Changes

    
Change at time 2012-07-11 01:20:04

    
author

    
cowan

    
field

    
comment

    
newvalue

    
Racket uses `#"..."` for something else, so this ticket has been rejected.

    
oldvalue

    
2

    
raw-time

    
1341944404440796

    
ticket

    
361

    
time

    
2012-07-11 01:20:04

    
Change at time 2012-07-11 01:20:04

    
author

    
cowan

    
field

    
resolution

    
newvalue

    
wontfix

    
oldvalue

    

    
raw-time

    
1341944404440796

    
ticket

    
361

    
time

    
2012-07-11 01:20:04

    
Change at time 2012-07-11 01:20:04

    
author

    
cowan

    
field

    
status

    
newvalue

    
closed

    
oldvalue

    
new

    
raw-time

    
1341944404440796

    
ticket

    
361

    
time

    
2012-07-11 01:20:04

    
Change at time 2012-04-05 09:56:31

    
author

    
cowan

    
field

    
comment

    
newvalue

    
`#"` is rarely used.  Of my 39 test Schemes, only Racket, Gambit, Larceny, IronScheme, Shoe, and and XLisp do something other than error out as soon as they see it -- but in most of these cases, I don't know what they are actually doing.

On the other hand, Racket, Gauche, MIT, Gambit, Chicken, Bigloo, Kawa, SISC, Chibi, Chez, !Ikarus/Vicare, STklos, KSi, Rep, Oaklisp, and Owl Lisp all understand `|...|` syntax.

Scsh, Guile, SCM, NexJ, Shoe, !TinyScheme, Dream, Scheme 7, BDC, Elk, UMB, VX treat `|` as an ordinary identifier character.

Scheme48, Larceny, Ypsilon, Mosh, !SigScheme, RScheme, XLisp, Schemik all report syntax  errors.

!IronScheme gets hung up reading characters from the input.


    
oldvalue

    
1

    
raw-time

    
1333594591600489

    
ticket

    
361

    
time

    
2012-04-05 09:56:31