in  : db=hg38&position=chr1:1-1000
next: [db=hg38][position=chr1:1-1000]
hash: [db=hg38][position=chr1:1-1000]

in  : a=1;b=2;c=3
next: [a=1][b=2][c=3]
hash: [a=1][b=2][c=3]

in  : a=1;b=2&c=3
next: [a=1;b=2][c=3]
hash: [a=1;b=2][c=3]

in  : &db=hg38&position=chr1:1-1000
next: [db=hg38][position=chr1:1-1000]
hash: [db=hg38][position=chr1:1-1000]

in  : db=hg38&&position=chr1:1-1000
next: [db=hg38][position=chr1:1-1000]
hash: [db=hg38][position=chr1:1-1000]

in  : db=hg38&position=chr1:1-1000&&
next: [db=hg38][position=chr1:1-1000]
hash: [db=hg38][position=chr1:1-1000]

in  : &&;&db=hg38
next: [db=hg38]
hash: [db=hg38]

in  : g-catV2&db=hg38
next: [db=hg38]
hash: [db=hg38]

in  : db=hg38&i&position=chr1:1-1000
next: [db=hg38][position=chr1:1-1000]
hash: [db=hg38][position=chr1:1-1000]

in  : db=hg38&g-catV2
next: [db=hg38]
hash: [db=hg38]

in  : g-catV2
next: 
hash: 

in  : a=1&b=&c=3
next: [a=1][b=][c=3]
hash: [a=1][b=][c=3]

in  : =v
next: [=v]
hash: [=v]

in  : a=1&=&b=2
next: [a=1][=][b=2]
hash: [a=1][=][b=2]

in  : 
next: 
hash: 

in  : &
next: 
hash: 

in  : hgt.customText=track name=one
next: [hgt.customText=track name=one]
hash: [hgt.customText=track name=one]

in  : position=chr1%3A1-1000&name=a+b&other=x%26y
next: [position=chr1:1-1000][name=a b][other=x&y]
hash: [position=chr1:1-1000][name=a b][other=x&y]

