Re: [perl #20716] scope error with brackets

[p5sagit/p5-mst-13.2.git] / util.c

diff --git a/util.c b/util.c
index 6bdcf38..303a19f 100644 (file)
--- a/util.c
+++ b/util.c
@@ -4312,3 +4312,56 @@ Perl_sv_nounlocking(pTHX_ SV *sv)
 {
 }
 
+U32
+Perl_parse_unicode_opts(pTHX_ char **popt)
+{
+  char *p = *popt;
+  U32 opt = 0;
+
+  if (*p) {
+       if (isDIGIT(*p)) {
+           opt = (U32) atoi(p);
+           while (isDIGIT(*p)) p++;
+           if (*p)
+                Perl_croak(aTHX_ "Unknown Unicode option letter '%c'", *p);
+       }
+       else {
+           for (; *p; p++) {
+                switch (*p) {
+                case PERL_UNICODE_STDIN:
+                     opt |= PERL_UNICODE_STDIN_FLAG;   break;
+                case PERL_UNICODE_STDOUT:
+                     opt |= PERL_UNICODE_STDOUT_FLAG;  break;
+                case PERL_UNICODE_STDERR:
+                     opt |= PERL_UNICODE_STDERR_FLAG;  break;
+                case PERL_UNICODE_STD:
+                     opt |= PERL_UNICODE_STD_FLAG;     break;
+                case PERL_UNICODE_IN:
+                     opt |= PERL_UNICODE_IN_FLAG;      break;
+                case PERL_UNICODE_OUT:
+                     opt |= PERL_UNICODE_OUT_FLAG;     break;
+                case PERL_UNICODE_INOUT:
+                     opt |= PERL_UNICODE_INOUT_FLAG;   break;
+                case PERL_UNICODE_LOCALE:
+                     opt |= PERL_UNICODE_LOCALE_FLAG;  break;
+                case PERL_UNICODE_ARGV:
+                     opt |= PERL_UNICODE_ARGV_FLAG;    break;
+                default:
+                     Perl_croak(aTHX_
+                                "Unknown Unicode option letter '%c'", *p);
+                }
+           }
+       }
+  }
+  else
+       opt = PERL_UNICODE_DEFAULT_FLAGS;
+
+  if (opt & ~PERL_UNICODE_ALL_FLAGS)
+       Perl_croak(aTHX_ "Unknown Unicode option value 0x%"UVuf,
+                 (UV) (opt & ~PERL_UNICODE_ALL_FLAGS));
+
+  *popt = p;
+
+  return opt;
+}
+