Count and split string with space except if between quotes in NSIS - string

Question

My question is like Split string on spaces in Java, except if between quotes (i.e. treat \"hello world\" as one token) but in NSIS way.
Hopefully without any external plugins.
How do I split a String based on space but take quoted substrings as
one word?
Example:
Location "Welcome to india" Bangalore Channai "IT city" Mysore
it should be stored in ArrayList as
Location
Welcome to india
Bangalore
Channai
IT city
Mysore

Answer 1

There is no array support without plugins so I left out the array part.
Any string operation can be performed with the 3 basic string functions in NSIS (StrLen, StrCpy and StrCmp):
!include LogicLib.nsh
Function SplitArg
Exch $0 ; str
Push $1 ; inQ
Push $3 ; idx
Push $4 ; tmp
StrCpy $1 0
StrCpy $3 0
loop:
StrCpy $4 $0 1 $3
${If} $4 == '"'
${If} $1 <> 0
StrCpy $0 $0 "" 1
IntOp $3 $3 - 1
${EndIf}
IntOp $1 $1 !
${EndIf}
${If} $4 == '' ; The end?
StrCpy $1 0
StrCpy $4 ' '
${EndIf}
${If} $4 == ' '
${AndIf} $1 = 0
StrCpy $4 $0 $3
StrCpy $1 $4 "" -1
${IfThen} $1 == '"' ${|} StrCpy $4 $4 -1 ${|}
killspace:
IntOp $3 $3 + 1
StrCpy $0 $0 "" $3
StrCpy $1 $0 1
StrCpy $3 0
StrCmp $1 ' ' killspace
Push $0 ; Remaining
Exch 4
Pop $0
StrCmp $4 "" 0 moreleft
Pop $4
Pop $3
Pop $1
Return
moreleft:
Exch $4
Exch 2
Pop $1
Pop $3
Return
${EndIf}
IntOp $3 $3 + 1
Goto loop
FunctionEnd
Section
push 'Location "Welcome to india" Bangalore Channai "IT city" Mysore'
loop:
call SplitArg
Pop $0
StrCmp $0 "" done
DetailPrint Item=|$0|
goto loop
done:
SectionEnd