// category 1 should only have a NULL test

@match exists@
expression x, E;
position p1,p2;
@@

x@p1 = FN(...)
... when != x = E
IS_ERR(x@p2)

@other_match exists@
expression match.x, E1, E2;
position p1!=match.p1,match.p2;
@@

x@p1 = E1
... when != x = E2
x@p2

@ script:python depends on !other_match@
p1 << match.p1;
p2 << match.p2;
@@

file  = p1[0].file
p1line = p1[0].line
p1colb = p1[0].column
p1cole = p1[0].column_end
p2line = p2[0].line
p2colb = p2[0].column
p2cole = p2[0].column_end
print "* TODO [[view:%s::face=ovl-face1::linb=%s::colb=%s::cole=%s][%s::%s]]" % (file,p1line,p1colb,p1cole,file,p1line)
print "[[view:%s::face=ovl-face2::linb=%s::colb=%s::cole=%s][%s: IS_ERR test]]" % (file,p2line,p2colb,p2cole,p2line)


@match1@
expression x;
position p;
@@

IS_ERR(x@p = FN(...))

@ script:python @
p << match1.p;
@@

file  = p[0].file
pline = p[0].line
pcolb = p[0].column
pcole = p[0].column_end
print "* TODO [[view:%s::face=ovl-face1::linb=%s::colb=%s::cole=%s][%s::%s]]" % (file,pline,pcolb,pcole,file,pline)