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Source for ticket #324

cc


    
changetime

    
2012-10-07 11:26:28

    
component

    
WG1 - Core

    
description

    
Allow `\|` to represent a vertical bar in an identifier enclosed in vertical bars.

Pro: It would be more consistent to allow `\` to escape the `|` so that `||` acts exactly analogously to `""` in strings, where backslashes escape the delimiter.  This is simpler, more regular and allows implementation to use the same routine for reading strings and symbols (with the delimiter as parameter).

Con: If `|` is not allowed anywhere in a `|`-escaped identifier except at the end, we can find the end just by scanning for `|`.


    
id

    
324

    
keywords

    

    
milestone

    

    
owner

    
cowan

    
priority

    
major

    
reporter

    
cowan

    
resolution

    
fixed

    
severity

    

    
status

    
closed

    
summary

    
allow |\ as escape for | within a |-escaped identifier

    
time

    
2012-01-10 04:06:54

    
type

    
defect

    
Changes

    
Change at time 2012-10-07 11:26:28

    
author

    
cowan

    
field

    
comment

    
newvalue

    

    
oldvalue

    
3

    
raw-time

    
1349583988707001

    
ticket

    
324

    
time

    
2012-10-07 11:26:28

    
Change at time 2012-10-07 11:26:28

    
author

    
cowan

    
field

    
resolution

    
newvalue

    
fixed

    
oldvalue

    

    
raw-time

    
1349583988707001

    
ticket

    
324

    
time

    
2012-10-07 11:26:28

    
Change at time 2012-10-07 11:26:28

    
author

    
cowan

    
field

    
status

    
newvalue

    
closed

    
oldvalue

    
writing

    
raw-time

    
1349583988707001

    
ticket

    
324

    
time

    
2012-10-07 11:26:28

    
Change at time 2012-04-23 13:08:29

    
author

    
cowan

    
field

    
comment

    
newvalue

    

    
oldvalue

    
2

    
raw-time

    
1335161309480206

    
ticket

    
324

    
time

    
2012-04-23 13:08:29

    
Change at time 2012-04-23 13:08:29

    
author

    
cowan

    
field

    
owner

    
newvalue

    
cowan

    
oldvalue

    
alexshinn

    
raw-time

    
1335161309480206

    
ticket

    
324

    
time

    
2012-04-23 13:08:29

    
Change at time 2012-04-23 13:08:29

    
author

    
cowan

    
field

    
status

    
newvalue

    
writing

    
oldvalue

    
decided

    
raw-time

    
1335161309480206

    
ticket

    
324

    
time

    
2012-04-23 13:08:29

    
Change at time 2012-04-05 08:55:53

    
author

    
cowan

    
field

    
comment

    
newvalue

    
The WG voted to adopt a proposal in which `\|` and all the escape sequences valid in strings are valid in identifiers enclosed in vertical bars.

    
oldvalue

    
1

    
raw-time

    
1333590953227066

    
ticket

    
324

    
time

    
2012-04-05 08:55:53

    
Change at time 2012-04-05 08:55:53

    
author

    
cowan

    
field

    
status

    
newvalue

    
decided

    
oldvalue

    
new

    
raw-time

    
1333590953227066

    
ticket

    
324

    
time

    
2012-04-05 08:55:53