diff --git a/Cargo.lock b/Cargo.lock
index a4b5c42..6630a2a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -40,7 +40,7 @@ dependencies = [
 [[package]]
 name = "mon"
 version = "0.1.0"
-source = "git+https://jturnerusa.dev/cgit/mon/?rev=5b7d7eec545864727d33bb59503f0349cf02b337#5b7d7eec545864727d33bb59503f0349cf02b337"
+source = "git+https://jturnerusa.dev/cgit/mon/?rev=e6c5335d43bfbf2fffa3d3c44cde404c970e5ee6#e6c5335d43bfbf2fffa3d3c44cde404c970e5ee6"
 
 [[package]]
 name = "proc-macro2"
diff --git a/Cargo.toml b/Cargo.toml
index 26d1de3..5e1525b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-mon = { git = "https://jturnerusa.dev/cgit/mon/", rev = "5b7d7eec545864727d33bb59503f0349cf02b337" }
+mon = { git = "https://jturnerusa.dev/cgit/mon/", rev = "e6c5335d43bfbf2fffa3d3c44cde404c970e5ee6" }
 get = { git = "https://jturnerusa.dev/cgit/get/", rev = "cd5f75b65777a855ab010c3137304ac05f2e56b8" }
 itertools = "0.14.0"
 thiserror = "2.0.17"
diff --git a/src/ebuild/parsers.rs b/src/ebuild/parsers.rs
index 8ab2978..bf5a03e 100644
--- a/src/ebuild/parsers.rs
+++ b/src/ebuild/parsers.rs
@@ -117,20 +117,29 @@ where
             let all_of_group = Depend::parser()
                 .separated_by(whitespace1())
                 .at_least(1)
-                .delimited_by(tag("(").followed_by(whitespace1()), tag(")"))
+                .delimited_by(
+                    tag("(").followed_by(whitespace1()),
+                    tag(")").preceded_by(whitespace1().opt()),
+                )
                 .map(|exprs| Depend::AllOf(exprs));
 
             let any_of_group = Depend::parser()
                 .separated_by(whitespace1())
                 .at_least(1)
-                .delimited_by(tag("(").followed_by(whitespace1()), tag(")"))
+                .delimited_by(
+                    tag("(").followed_by(whitespace1()),
+                    tag(")").preceded_by(whitespace1().opt()),
+                )
                 .preceded_by(tag("||").followed_by(whitespace1()))
                 .map(|exprs| Depend::AnyOf(exprs));
 
             let one_of_group = Depend::parser()
                 .separated_by(whitespace1())
                 .at_least(1)
-                .delimited_by(tag("(").followed_by(whitespace1()), tag(")"))
+                .delimited_by(
+                    tag("(").followed_by(whitespace1()),
+                    tag(")").preceded_by(whitespace1().opt()),
+                )
                 .preceded_by(tag("^^").followed_by(whitespace1()))
                 .map(|exprs| Depend::OneOf(exprs));
 
@@ -140,7 +149,10 @@ where
                     Depend::parser()
                         .separated_by(whitespace1())
                         .at_least(1)
-                        .delimited_by(tag("(").followed_by(whitespace1()), tag(")")),
+                        .delimited_by(
+                            tag("(").followed_by(whitespace1()),
+                            tag(")").preceded_by(whitespace1().opt()),
+                        ),
                 )
                 .map(|(conditional, exprs)| Depend::ConditionalGroup(conditional, exprs));
 
diff --git a/testdata/porthole.txt b/testdata/porthole.txt
index 99abf89..20f2beb 100644
--- a/testdata/porthole.txt
+++ b/testdata/porthole.txt
@@ -1,19 +1,126 @@
-+ something/package
-+ something/package
-- some#thing/package
-+ =cat/package-1.0:0/2.0
-- something/pac?kage
-- =something/+package-1.0:3.0
-- a b c 
+**********************
+*** porthole tests ***
+**********************
 
-+ >=media-video/knob-goblin-1.0_alpha-r4
-+ media-video/knobgoblin:4
+cp+ something/package
+cp+ something/package
+cp- some#thing/package
+cpv+ foo/package-1.0:0/2.0
+cp- something/pac?kage
+cp- a b c 
 
-- /hello
-- group/-1.0
-- >=/
-- >=media-video/revised-knob-3.0aaaaaaaaa-r15
+*** https://github.com/pkgcore/pkgcore/pull/420
+*** I accidentally stumbled upon this old bug somehow in pkgcore
+*** and was curious if we would pass it.
+cp- >=media-video/knobgoblin:4
+cp- /hello
+cp- group/-1.0
+cp- >=/
+cp- >=media-video/revised-knob-3.0aaaaaaaaa-r15
 
-*** sanity check
-> cat/test-2.0 cat/test-1.0
-< cat/test-1.0 cat/test-2.0
+*************************
+*** pkgcore cpv tests ***
+*************************
+
+cp+ dev-util/pkg
+cp+ dev+/pkg
+cp+ dev-util+/pkg
+cp+ DEV-UTIL/pkg
+cp+ aaa0/pkg
+cp+ aaa-0/pkg
+*** + multi/depth (what?)
+cp+ cross-dev_idiot.hacks-suck/pkg
+cp+ a/pkg
+cp+ foo---/pkg
+cp+ multi--hyphen/pkg
+cp- .util/pkg
+cp+ _dev/pkg
+cp- dev-util /pkg
+*** - multi//depth/pkg
+
+cp+ cat/diffball
+cp+ cat/a9
+cp+ cat/a9+
+* + cat/a-100dpi
+cp+ cat/diff-mode-
+cp+ cat/multi--hyphen
+cp+ cat/timidity--
+cp+ cat/frob---
+cp+ cat/diffball-9-
+*** - cat/diffball 
+*** - cat/diffball-9
+cp+ cat/a-3D
+cp- cat/-df
+cp- cat/+dfa
+* - cat/timidity--9f
+* - cat/ormaybe---13_beta
+* - cat/bar-11-r3
+
+cp+ bbb-9/foon
+cp+ dev-util/diffball
+cp+ dev-util/diffball-a9
+cp+ dev-ut-asdf/emacs-cvs
+cp+ xfce-base/xfce4
+cp+ bah/f-100dpi
+cp+ dev-util/diffball-blah-monkeys
+cp+ virtual/7z
+* this is vlaid, 
+cp+ x11-drivers/xf86-video-r128
+
+cpv+ dev-perl/mod-p-1
+cpv+ dev-perl/mod-p-2.3.4
+cpv+ dev-perl/mod-p-2.3.4a
+cpv+ dev-perl/mod-p-02.3
+cpv+ dev-perl/mod-p-2.03
+cpv+ dev-perl/mod-p-3d
+cpv- dev-perl/mod-p-3D
+cpv- dev-perl/mod-p-2.3a.4
+cpv- dev-perl/mod-p-2.a.3
+cpv- dev-perl/mod-p-2.3_
+* - dev-perl/mod-p-2.3 
+cpv- dev-perl/mod-p-2.3.
+cpv- dev-perl/mod-p-cvs.2
+cpv+ dev-perl/mod-p-1-r1
+cpv+ dev-perl/mod-p-1-r300
+cpv+ dev-perl/mod-p-1-r0
+cpv+ dev-perl/mod-p-1-r10000000000000000000000
+cpv- dev-perl/mod-p-1-r
+cpv- dev-perl/mod-p-1-ra
+cpv- dev-perl/mod-p-1-r
+cpv- dev-perl/mod-p-1-R1
+
+*** skipping some tests for now, lazy
+
+> da/ba-6a da/ba-6
+> da/ba-6a-r1 da/ba-6a
+> da/ba-6.0 da/ba-6
+> da/ba-6.0.0 da/ba-6.0b
+> da/ba-6.02 da/ba-6.0.0
+> da/ba-6.2 da/ba-6.054
+= da/ba-6 da/ba-6
+> db/ba da/ba
+> da/bb da/ba
+> da/ba-6.0_alpha0_p1 da/ba-6.0_alpha
+= da/ba-6.0_alpha da/ba-6.0_alpha0
+> da/ba-6.1 da/ba-6.09
+> da/ba-6.0.1 da/ba-6.0
+> da/ba-12.2.5 da/ba-12.2b
+> dev-lang/erlang-12.2.5 dev-lang/erlang-12.2b
+> dev-lang/erlang-12.2.5-r1 dev-lang/erlang-12.2b
+= da/ba-6.01.0 da/ba-6.010.0
+= da/ba-6.0.1 da/ba-6.000.1
+= da/ba-6.01.0 da/ba-6.01.0-r0
+= da/ba-6.01.0-r0 da/ba-6.01.0-r00
+= da/ba-6.01.0-r1 da/ba-6.01.0-r001
+< da/ba-1.001000000000000000001 da/ba-1.001000000000000000002
+< da/ba-1.00100000000 da/ba-1.0010000000000000001
+< da/ba-1.01 da/ba-1.1
+> da/ba-10181 da/ba-1181
+> da/ba-10361 da/ba-1361
+> da/ba-101001 da/ba-11001
+> sys-apps/net-tools-1.60_p2010081516093 sys-apps/net-tools-1.60_p2009072801401
+> sys-apps/net-tools-1.60_p20100815160931 sys-apps/net-tools-1.60_p20090728014017
+> sys-apps/net-tools-1.60_p20100815160931 sys-apps/net-tools-1.60_p20090728014017-r1
+!= da/ba-6.0_alpha0_p1 da/ba-6.0_alpha
+= da/ba-6.0_alpha0 da/ba-6.0_alpha
+!= da/ba-6.0 da/ba
diff --git a/tests/porthole.rs b/tests/porthole.rs
index 3efbffe..2c55ffe 100644
--- a/tests/porthole.rs
+++ b/tests/porthole.rs
@@ -2,9 +2,9 @@ use std::cmp::Ordering;
 
 use gentoo_utils::{
     Parseable,
-    atom::{Atom, Cpv},
+    atom::{Cp, Cpv},
 };
-use mon::{Parser, input::InputIter, tag};
+use mon::{Parser, ParserIter, input::InputIter, tag};
 
 static PORTHOLE_TXT: &'static str = include_str!(concat!(
     env!("CARGO_MANIFEST_DIR"),
@@ -12,29 +12,38 @@ static PORTHOLE_TXT: &'static str = include_str!(concat!(
 ));
 
 enum Operator {
-    Comment,
-    Yes,
-    No,
+    Cpv(bool),
+    Cp(bool),
     Eq,
+    Ne,
     Gt,
     Lt,
 }
 
 fn parse_operator<'a>() -> impl Parser<&'a str, Output = Operator> {
-    let comment = tag("***").map(|_| Operator::Comment);
-    let yes = tag("+").map(|_| Operator::Yes);
-    let no = tag("-").map(|_| Operator::No);
+    let cpvyes = tag("cpv+").map(|_: &str| Operator::Cpv(true));
+    let cpvno = tag("cpv-").map(|_: &str| Operator::Cpv(false));
+    let cpyes = tag("cp+").map(|_| Operator::Cp(true));
+    let cpno = tag("cp-").map(|_: &str| Operator::Cp(false));
     let eq = tag("=").map(|_| Operator::Eq);
+    let ne = tag("!=").map(|_: &str| Operator::Ne);
     let gt = tag(">").map(|_| Operator::Gt);
     let lt = tag("<").map(|_| Operator::Lt);
 
-    comment.or(yes).or(no).or(eq).or(gt).or(lt)
+    cpvyes
+        .or(cpvno)
+        .or(cpyes)
+        .or(cpno)
+        .or(eq)
+        .or(ne)
+        .or(gt)
+        .or(lt)
 }
 
 #[test]
 fn test_porthole() {
     for line in PORTHOLE_TXT.lines() {
-        if line.is_empty() {
+        if line.is_empty() || line.starts_with("*") {
             continue;
         }
 
@@ -45,29 +54,62 @@ fn test_porthole() {
             .unwrap();
 
         match &operator {
-            Operator::Comment => continue,
-            Operator::Yes => {
-                let a = Atom::parser()
+            Operator::Cpv(is_err) => {
+                let col = line.split_ascii_whitespace().nth(1).unwrap();
+
+                let cpv = Cpv::parser().parse_finished(InputIter::new(col));
+
+                match (dbg!(cpv), is_err) {
+                    (Ok(cpv), true) => {
+                        assert_eq!(&cpv.to_string(), col);
+                    }
+                    (Err(_), false) => (),
+                    _ => {
+                        panic!("{line}");
+                    }
+                };
+            }
+
+            Operator::Cp(is_err) => {
+                let col = line.split_ascii_whitespace().nth(1).unwrap();
+
+                let cp = Cp::parser().parse_finished(InputIter::new(col));
+
+                match (cp, is_err) {
+                    (Ok(cp), true) => {
+                        assert_eq!(&cp.to_string(), col);
+                    }
+                    (Err(_), false) => (),
+                    _ => {
+                        panic!("{line}");
+                    }
+                };
+            }
+
+            Operator::Eq | Operator::Ne => {
+                let a = Cpv::parser()
                     .parse_finished(InputIter::new(
                         line.split_ascii_whitespace().nth(1).unwrap(),
                     ))
                     .unwrap();
 
+                let b = Cpv::parser()
+                    .parse_finished(InputIter::new(
+                        line.split_ascii_whitespace().nth(2).unwrap(),
+                    ))
+                    .unwrap();
+
                 assert_eq!(
-                    line.split_ascii_whitespace().nth(1).unwrap(),
-                    &a.to_string()
+                    a.eq(&b),
+                    match &operator {
+                        Operator::Eq => true,
+                        Operator::Ne => false,
+                        _ => unreachable!(),
+                    }
                 );
             }
-            Operator::No => {
-                assert!(
-                    Atom::parser()
-                        .parse_finished(InputIter::new(
-                            line.split_ascii_whitespace().nth(1).unwrap()
-                        ))
-                        .is_err()
-                );
-            }
-            Operator::Eq | Operator::Gt | Operator::Lt => {
+
+            Operator::Gt | Operator::Lt => {
                 let a = Cpv::parser()
                     .parse_finished(InputIter::new(
                         line.split_ascii_whitespace().nth(1).unwrap(),
@@ -83,7 +125,6 @@ fn test_porthole() {
                 assert_eq!(
                     a.partial_cmp(&b).unwrap(),
                     match &operator {
-                        Operator::Eq => Ordering::Equal,
                         Operator::Gt => Ordering::Greater,
                         Operator::Lt => Ordering::Less,
                         _ => unreachable!(),