a v-string (which will UTF-8-encode the values above 127)

actually, they're UTF-8 encoded if they're above 255.

> perl -MDevel::Peek -e"$a=v256;$b=v128;Dump$a;Dump$b"
SV = PV(0x182ebf4) at 0x182383c
  REFCNT = 1
  FLAGS = (POK,pPOK,UTF8)
  PV = 0x182013c "\304\200"\0
  CUR = 2
  LEN = 3
SV = PV(0x182ec24) at 0x1823848
  REFCNT = 1
  FLAGS = (POK,pPOK)
  PV = 0x182012c "\200"\0
  CUR = 1
  LEN = 2

[download]

you can differentiate between a number and a v-string by examining the result of the SvPOKp(SV*) macro. a true return means a v-string, false indicates a number.

if you can differentiate between a v-string and any other string by your above method, you should be able to determine whether or not you have a v-string, no?

~Particle *accelerates*

In reply to Re^3: Distinguishing a v-string from something else by particle
in thread Distinguishing a v-string from something else by John M. Dlugosz

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