Hello,

I have the following strings:
TEST1=/bla/\${var1}/bla/${var2}a${var3}/bla
TEST2=/bla/\${var1}/bla/${var2}${var3}/bla

I want to transform them:
TEST1=/bla/\$ENV{var1}/bla/$ENV{var2}a$ENV{var3}/bla
TEST2=/bla/\$ENV{var1}/bla/$ENV{var2}$ENV{var3}/bla

The rule: substitute all $var to $ENV{var}, but not if the character 
before $ is a \ (backslash).

My solution works fine with TEST1 but not with TEST2:
s/(^|[^\\]?)\$\{(\w+)\}/$1\$ENV\{$2\}/g;
I get:
TEST1=/bla/\$ENV{var1}/bla/$ENV{var2}a$ENV{var3}/bla
TEST2=/bla/\$ENV{var1}/bla/$ENV{var2}{var3}/bla

The problem occure, if no character is between two variables.

Some ideas?

Thanks,
Walter

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