Global:RELEVANT = yes (load-time part)
Global:COUNTER = 
Global:NEXT = ${COUNTER::=${COUNTER} a}${COUNTER:[#]}
Global:A = 
Var_Parse: ${NEXT} with VARE_WANTRES|VARE_ASSIGN
Var_Parse: ${COUNTER::=${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Applying ${COUNTER::...} to "" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Var_Parse: ${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES
Modifier part: " a"
Global:COUNTER =  a
Result of ${COUNTER::=${COUNTER} a} is "" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Var_Parse: ${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Var_Parse: ${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Applying ${COUNTER:[...} to " a" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Modifier part: "#"
Result of ${COUNTER:[#]} is "1" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Global:A = ${COUNTER::= a a}1
Global:B = 
Var_Parse: ${NEXT} with VARE_WANTRES|VARE_ASSIGN
Var_Parse: ${COUNTER::=${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Applying ${COUNTER::...} to " a" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Var_Parse: ${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES
Modifier part: " a a"
Global:COUNTER =  a a
Result of ${COUNTER::=${COUNTER} a} is "" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Var_Parse: ${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Var_Parse: ${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Applying ${COUNTER:[...} to " a a" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Modifier part: "#"
Result of ${COUNTER:[#]} is "2" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Global:B = ${COUNTER::= a a a}2
Global:C = 
Var_Parse: ${NEXT} with VARE_WANTRES|VARE_ASSIGN
Var_Parse: ${COUNTER::=${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Applying ${COUNTER::...} to " a a" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Var_Parse: ${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES
Modifier part: " a a a"
Global:COUNTER =  a a a
Result of ${COUNTER::=${COUNTER} a} is "" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Var_Parse: ${COUNTER} a}${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Var_Parse: ${COUNTER:[#]} with VARE_WANTRES|VARE_ASSIGN
Applying ${COUNTER:[...} to " a a a" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Modifier part: "#"
Result of ${COUNTER:[#]} is "3" (eflags = VARE_WANTRES|VARE_ASSIGN, vflags = none)
Global:C = ${COUNTER::= a a a a}3
Global:RELEVANT = no
Global:RELEVANT = yes (run-time part)
Result of ${RELEVANT::=yes (run-time part)} is "" (eflags = VARE_WANTRES, vflags = none)
Var_Parse: ${A:Q} B=${B:Q} C=${C:Q} COUNTER=${COUNTER:[#]:Q} with VARE_WANTRES
Var_Parse: ${COUNTER::= a a}1 with VARE_WANTRES
Applying ${COUNTER::...} to " a a a" (eflags = VARE_WANTRES, vflags = none)
Modifier part: " a a"
Global:COUNTER =  a a
Result of ${COUNTER::= a a} is "" (eflags = VARE_WANTRES, vflags = none)
Applying ${A:Q} to "1" (eflags = VARE_WANTRES, vflags = none)
QuoteMeta: [1]
Result of ${A:Q} is "1" (eflags = VARE_WANTRES, vflags = none)
Var_Parse: ${B:Q} C=${C:Q} COUNTER=${COUNTER:[#]:Q} with VARE_WANTRES
Var_Parse: ${COUNTER::= a a a}2 with VARE_WANTRES
Applying ${COUNTER::...} to " a a" (eflags = VARE_WANTRES, vflags = none)
Modifier part: " a a a"
Global:COUNTER =  a a a
Result of ${COUNTER::= a a a} is "" (eflags = VARE_WANTRES, vflags = none)
Applying ${B:Q} to "2" (eflags = VARE_WANTRES, vflags = none)
QuoteMeta: [2]
Result of ${B:Q} is "2" (eflags = VARE_WANTRES, vflags = none)
Var_Parse: ${C:Q} COUNTER=${COUNTER:[#]:Q} with VARE_WANTRES
Var_Parse: ${COUNTER::= a a a a}3 with VARE_WANTRES
Applying ${COUNTER::...} to " a a a" (eflags = VARE_WANTRES, vflags = none)
Modifier part: " a a a a"
Global:COUNTER =  a a a a
Result of ${COUNTER::= a a a a} is "" (eflags = VARE_WANTRES, vflags = none)
Applying ${C:Q} to "3" (eflags = VARE_WANTRES, vflags = none)
QuoteMeta: [3]
Result of ${C:Q} is "3" (eflags = VARE_WANTRES, vflags = none)
Var_Parse: ${COUNTER:[#]:Q} with VARE_WANTRES
Applying ${COUNTER:[...} to " a a a a" (eflags = VARE_WANTRES, vflags = none)
Modifier part: "#"
Result of ${COUNTER:[#]} is "4" (eflags = VARE_WANTRES, vflags = none)
Applying ${COUNTER:Q} to "4" (eflags = VARE_WANTRES, vflags = none)
QuoteMeta: [4]
Result of ${COUNTER:Q} is "4" (eflags = VARE_WANTRES, vflags = none)
A=1 B=2 C=3 COUNTER=4
Var_Parse: ${RELEVANT::=no} with VARE_WANTRES
Applying ${RELEVANT::...} to "yes (run-time part)" (eflags = VARE_WANTRES, vflags = none)
Modifier part: "no"
Global:RELEVANT = no
exit status 0