__FB_ARG_EXTRACT__ incorrectly recognizes commas nested in other forms with variadic macros

[jayrm]

__FB_ARG_EXTRACT__ currently uses a simple internal compiler procedure hSplitStr() to find the arguments in text; this procedure does not recognize other common forms found in fbc source code.

As shown in the following example, we should expect same output for both DUMP1() and DUMPX() macros.

Example:

#macro dump1( n, arg0, arg1 )
	#print arg1
	#print
#endmacro

#print DUMP1
dump1( 1, x, (y, z) )   '' expect (y, z)
dump1( 1, x, "y, z" )   '' expect "y, z"
dump1( 1, x, $"y, z" )  '' expect "y, z"
dump1( 1, x, !"y, z" )  '' expect "y, z"
dump1( 1, x, /'y, z'/ ) '' expect ""

#macro dumpX( n, args... )
	#print __fb_arg_extract__( n, args )
	#print
#endmacro

#print DUMPX
dumpX( 1, x, (y, z) )   '' expect (y, z)
dumpX( 1, x, "y, z" )   '' expect "y, z"
dumpX( 1, x, $"y, z" )  '' expect "y, z"
dumpX( 1, x, !"y, z" )  '' expect "y, z"
dumpX( 1, x, /'y, z'/ ) '' expect ""

/'
OUTPUT:

DUMP1
(y, z)
y, z
y, z
y, z
DUMPX
(y
args.bas(20) warning 12(1): Missing closing quote in literal string
y
args.bas(21) warning 12(1): Missing closing quote in literal string
y
args.bas(22) warning 12(1): Missing closing quote in literal string
y
'/

Currently working on a fix by implementing a hStr2Args() procedure that recognizes comma's nested in parentheses, quotes, and comments.

[jayrm]

It is suggested that the above example be changed as follows:

??? - maybe this was supposed to be an example for #312 ?

ok, updated the title of this PR. The issue is with variadic macros. In the original example given in this PR we should expect same output for dump1() and dumpx()

[jayrm]

__FB_ARG_EXTRACT__ variadic argument parsing changed in:

fbc-1.08.1 [28d7adb]
fbc-1.09.0 [146862f]