Experimental Physics and Industrial Control System
@Mark This won't prevent applications from parsing octal numbers in
strings, it's just where you're wanting to include a non-ASCII character
in a string field, something like this:
field(FVST, "F\374nf") # "Fünf" using the ISO-8859-1 char-set
which would have to be spelled like this instead:
field(FVST, "F\xFCnf")
@Dirk The JSON5 spec is a small subset of the ECMAScript 5.1 language spec, so they're just following what that standard said. Actually the epicsStrnRawFromEscaped() routine will still accept a single hex digit, but the dbLoadRecords() lexer will complain if it doesn't see two.
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https://bugs.launchpad.net/bugs/1783475
Title:
const link support can't handle escaped charactors
Status in EPICS Base:
Triaged
Status in EPICS Base 3.16 series:
Won't Fix
Status in EPICS Base 7.0 series:
Triaged
Bug description:
I think the following should work, but it doesn't. The culprit seems
to be the call to dbTranslateEscape() in dbRecordField() and
dbRecordInfo(). The escaped newline is handled correctly by dbLex,
but the later dbJLinkParse() errors on the now unescaped newline.
> record(stringin, "test") {
> field(INP, {const:"multi\nline"})
> }
> dbJLinkInit: lexical error: invalid character inside string.
> {"const":"multi line"}
> (right here) ------^
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