diff --git a/interpreter/src/interpretor.rs b/interpreter/src/interpretor.rs
index d38a67b..958be65 100644
--- a/interpreter/src/interpretor.rs
+++ b/interpreter/src/interpretor.rs
@@ -6,21 +6,25 @@ pub(crate) fn standard_vocab(vocabulary: &mut LanguageDictionary) {
         // filters
         .add(crate::lang::vocabulary::filters::empty_filter())
         .add(crate::lang::vocabulary::filters::unique_filter()) // accepts .(unique)
-        .add(crate::lang::vocabulary::filters::field_filter()) // accepts any .(something)
-        .add(crate::lang::vocabulary::filters::field_filter_maybe())
-        .add(crate::lang::vocabulary::filters::index_filter())
         .add(crate::lang::vocabulary::filters::range_filter())
-        .add(crate::lang::vocabulary::filters::field_like_filter())
-        .add(crate::lang::vocabulary::filters::field_re_filter())
+        .add( // accepts any .(.something)
+            crate::lang::vocabulary::filters::field::FieldFilterBlockFactory::new()
+                .push(crate::lang::vocabulary::filters::field::FieldFilterComparisonFactory)
+                .push(crate::lang::vocabulary::filters::field::FieldFilterMaybeFactory)
+                .push(crate::lang::vocabulary::filters::field::FieldLikeFilterFactory)
+                .push(crate::lang::vocabulary::filters::field::FieldRegexFilterFactory)
+                .to_statement_factory()
+        )
+        .add(crate::lang::vocabulary::filters::index_filter())
         .add(crate::lang::vocabulary::filters::unique_field_filter())
         .add(crate::lang::vocabulary::filters::nonempty_filter())
         // sorters
         .add(crate::lang::vocabulary::sorters::empty_sort())
-        .add(crate::lang::vocabulary::sorters::shuffle_sort()) // accepts ~(shuffle)
+        .add(crate::lang::vocabulary::sorters::shuffle_sort()) // accepts ~(~shuffle)
         .add(crate::lang::vocabulary::sorters::bliss_sort())
         .add(crate::lang::vocabulary::sorters::bliss_next_sort())
         .add(crate::lang::vocabulary::sorters::radio_sort())
-        .add(crate::lang::vocabulary::sorters::field_sort()) // accepts any ~(name)
+        .add(crate::lang::vocabulary::sorters::field_sort()) // accepts any ~(.name)
         // iter blocks
         .add(
             crate::lang::ItemBlockFactory::new()
diff --git a/interpreter/src/lang/vocabulary/filters/field_filter.rs b/interpreter/src/lang/vocabulary/filters/field/field_filter.rs
similarity index 77%
rename from interpreter/src/lang/vocabulary/filters/field_filter.rs
rename to interpreter/src/lang/vocabulary/filters/field/field_filter.rs
index e12a9ed..c3bcd32 100644
--- a/interpreter/src/lang/vocabulary/filters/field_filter.rs
+++ b/interpreter/src/lang/vocabulary/filters/field/field_filter.rs
@@ -1,11 +1,11 @@
 use std::collections::VecDeque;
 use std::fmt::{Debug, Display, Error, Formatter};
 
-use super::utility::{assert_comparison_operator, comparison_op};
-use crate::lang::utility::{assert_token, assert_type, check_is_type, assert_token_raw};
+use super::super::utility::{assert_comparison_operator, comparison_op};
+use super::{FieldFilterFactory, FieldFilterPredicate};
+use crate::lang::utility::{assert_token, assert_type, check_is_type};
 use crate::lang::LanguageDictionary;
 use crate::lang::TypePrimitive;
-use crate::lang::{FilterFactory, FilterPredicate, FilterStatementFactory};
 use crate::lang::{RuntimeMsg, SyntaxError};
 use crate::processing::general::Type;
 use crate::tokens::Token;
@@ -46,7 +46,7 @@ impl Display for FieldFilter {
     }
 }
 
-impl FilterPredicate for FieldFilter {
+impl FieldFilterPredicate for FieldFilter {
     fn matches(&mut self, music_item_lut: &Item, ctx: &mut Context) -> Result<bool, RuntimeMsg> {
         let variable = match &self.val {
             VariableOrValue::Variable(name) => match ctx.variables.get(name)? {
@@ -93,41 +93,33 @@ impl FilterPredicate for FieldFilter {
     fn reset(&mut self) -> Result<(), RuntimeMsg> {
         Ok(())
     }
+
+    fn box_clone(&self) -> Box<dyn FieldFilterPredicate + 'static> {
+        Box::new(self.clone())
+    }
 }
 
-pub struct FieldFilterFactory;
+pub struct FieldFilterComparisonFactory;
 
-impl FilterFactory<FieldFilter> for FieldFilterFactory {
-    fn is_filter(&self, tokens: &VecDeque<&Token>) -> bool {
+impl FieldFilterFactory<FieldFilter> for FieldFilterComparisonFactory {
+    fn is_filter(&self, tokens: &[Token]) -> bool {
         let tokens_len = tokens.len();
-        (tokens_len >= 3
+        (tokens_len >= 1
             // .field > variable OR .field < variable
-            && tokens[0].is_dot()
-            && tokens[1].is_name()
-            && (tokens[2].is_open_angle_bracket() || tokens[2].is_close_angle_bracket()))
-            || (tokens_len >= 4 // .field >= variable OR .field <= variable OR .field != variable OR .field == variable
-            && tokens[0].is_dot()
-            && tokens[1].is_name()
-            && (tokens[2].is_open_angle_bracket() || tokens[2].is_close_angle_bracket() || tokens[2].is_equals() || tokens[2].is_exclamation())
-            && tokens[3].is_equals()
-            && !(tokens_len > 4 && tokens[4].is_equals())
+            && (tokens[0].is_open_angle_bracket() || tokens[0].is_close_angle_bracket()))
+            || (tokens_len >= 2 // .field >= variable OR .field <= variable OR .field != variable OR .field == variable
+            && (tokens[0].is_open_angle_bracket() || tokens[0].is_close_angle_bracket() || tokens[0].is_equals() || tokens[0].is_exclamation())
+            && tokens[1].is_equals()
+            && !(tokens_len > 2 && tokens[2].is_equals())
             )
     }
 
     fn build_filter(
         &self,
         tokens: &mut VecDeque<Token>,
+        field: String,
         _dict: &LanguageDictionary,
     ) -> Result<FieldFilter, SyntaxError> {
-        assert_token_raw(Token::Dot, tokens)?;
-        let field = assert_token(
-            |t| match t {
-                Token::Name(n) => Some(n),
-                _ => None,
-            },
-            Token::Name("field_name".into()),
-            tokens,
-        )?;
         let compare_operator = assert_comparison_operator(tokens)?;
         if check_is_type(&tokens[0]) {
             let value = VariableOrValue::Value(assert_type(tokens)?);
@@ -159,10 +151,3 @@ impl FilterFactory<FieldFilter> for FieldFilterFactory {
         }
     }
 }
-
-pub type FieldFilterStatementFactory = FilterStatementFactory<FieldFilter, FieldFilterFactory>;
-
-#[inline(always)]
-pub fn field_filter() -> FieldFilterStatementFactory {
-    FieldFilterStatementFactory::new(FieldFilterFactory)
-}
diff --git a/interpreter/src/lang/vocabulary/filters/field/field_filter_factory.rs b/interpreter/src/lang/vocabulary/filters/field/field_filter_factory.rs
new file mode 100644
index 0000000..f8523de
--- /dev/null
+++ b/interpreter/src/lang/vocabulary/filters/field/field_filter_factory.rs
@@ -0,0 +1,160 @@
+use std::collections::VecDeque;
+use std::fmt::{Debug, Display, Error, Formatter};
+
+use crate::lang::{FilterFactory, FilterPredicate, FilterStatementFactory};
+use crate::tokens::Token;
+use crate::lang::utility::{assert_token, assert_token_raw};
+use crate::lang::LanguageDictionary;
+use crate::lang::{RuntimeMsg, SyntaxError};
+use crate::Context;
+use crate::Item;
+
+pub trait FieldFilterFactory<T: FieldFilterPredicate + 'static>: Send + Sync {
+    fn is_filter(&self, tokens: &[Token]) -> bool;
+
+    fn build_filter(
+        &self,
+        tokens: &mut VecDeque<Token>,
+        field: String,
+        dict: &LanguageDictionary,
+    ) -> Result<T, SyntaxError>;
+}
+
+pub trait FieldFilterPredicate: Send + Sync + Debug + Display {
+    fn matches(&mut self, item: &Item, ctx: &mut Context) -> Result<bool, RuntimeMsg>;
+
+    fn is_complete(&self) -> bool;
+
+    fn reset(&mut self) -> Result<(), RuntimeMsg>;
+
+    fn box_clone(&self) -> Box<dyn FieldFilterPredicate + 'static>;
+}
+
+pub struct FieldFilterFactoryBoxer<T: FieldFilterPredicate + 'static> {
+    inner: Box<dyn FieldFilterFactory<T>>
+}
+
+#[derive(Debug)]
+pub struct BoxedFilterPredicate {
+    inner: Box<dyn FieldFilterPredicate + 'static>
+}
+
+impl Clone for BoxedFilterPredicate {
+    fn clone(&self) -> Self {
+        Self {
+            inner: self.inner.box_clone()
+        }
+    }
+}
+
+impl Display for BoxedFilterPredicate {
+    fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
+        (&self.inner as &dyn Display).fmt(f)
+    }
+}
+
+impl FilterPredicate for BoxedFilterPredicate {
+    fn matches(&mut self, item: &Item, ctx: &mut Context) -> Result<bool, RuntimeMsg> {
+        self.inner.matches(item, ctx)
+    }
+
+    fn is_complete(&self) -> bool {
+        self.inner.is_complete()
+    }
+
+    fn reset(&mut self) -> Result<(), RuntimeMsg> {
+        self.inner.reset()
+    }
+}
+
+impl FieldFilterPredicate for BoxedFilterPredicate {
+    fn matches(&mut self, item: &Item, ctx: &mut Context) -> Result<bool, RuntimeMsg> {
+        self.inner.matches(item, ctx)
+    }
+
+    fn is_complete(&self) -> bool {
+        self.inner.is_complete()
+    }
+
+    fn reset(&mut self) -> Result<(), RuntimeMsg> {
+        self.inner.reset()
+    }
+
+    fn box_clone(&self) -> Box<dyn FieldFilterPredicate + 'static> {
+        self.inner.box_clone()
+    }
+}
+
+impl <T: FieldFilterPredicate + 'static> FieldFilterFactory<BoxedFilterPredicate> for FieldFilterFactoryBoxer<T> {
+    fn is_filter(&self, tokens: &[Token]) -> bool {
+        self.inner.is_filter(tokens)
+    }
+
+    fn build_filter(
+        &self,
+        tokens: &mut VecDeque<Token>,
+        field: String,
+        dict: &LanguageDictionary,
+    ) -> Result<BoxedFilterPredicate, SyntaxError> {
+        self.inner.build_filter(tokens, field, dict).map(|x| BoxedFilterPredicate { inner: Box::new(x) })
+    }
+}
+
+pub struct FieldFilterBlockFactory {
+    field_filters: Vec<Box<dyn FieldFilterFactory<BoxedFilterPredicate>>>,
+}
+
+impl FieldFilterBlockFactory {
+    pub fn new() -> Self {
+        Self {
+            field_filters: Vec::new(),
+        }
+    }
+
+    pub fn push<T: FieldFilterPredicate + 'static, F: FieldFilterFactory<T> + 'static>(mut self, factory: F) -> Self {
+        self.field_filters.push(
+            Box::new(FieldFilterFactoryBoxer { inner: Box::new(factory) })
+        );
+        self
+    }
+
+    #[inline(always)]
+    pub fn to_statement_factory(self) -> FieldFilterStatementFactory {
+        FieldFilterStatementFactory::new(self)
+    }
+}
+
+impl FilterFactory<BoxedFilterPredicate> for FieldFilterBlockFactory {
+    fn is_filter(&self, tokens: &VecDeque<&Token>) -> bool {
+        tokens.len() > 1 && tokens[0].is_dot()
+    }
+
+    fn build_filter(
+        &self,
+        tokens: &mut VecDeque<Token>,
+        dict: &LanguageDictionary,
+    ) -> Result<BoxedFilterPredicate, SyntaxError> {
+        assert_token_raw(Token::Dot, tokens)?;
+        let field = assert_token(
+            |t| match t {
+                Token::Name(n) => Some(n),
+                _ => None,
+            },
+            Token::Name("field_name".into()),
+            tokens,
+        )?;
+        for filter in &self.field_filters {
+            if filter.is_filter(tokens.make_contiguous()) {
+                return filter.build_filter(tokens, field, dict);
+            }
+        }
+        Err(SyntaxError {
+            got: tokens.front().cloned(),
+            token: Token::Name("<comparison op>".into()),
+            line: 0,
+        })
+    }
+}
+
+pub type FieldFilterStatementFactory =
+    FilterStatementFactory<BoxedFilterPredicate, FieldFilterBlockFactory>;
diff --git a/interpreter/src/lang/vocabulary/filters/field_filter_maybe.rs b/interpreter/src/lang/vocabulary/filters/field/field_filter_maybe.rs
similarity index 60%
rename from interpreter/src/lang/vocabulary/filters/field_filter_maybe.rs
rename to interpreter/src/lang/vocabulary/filters/field/field_filter_maybe.rs
index eb8ec67..7b9059a 100644
--- a/interpreter/src/lang/vocabulary/filters/field_filter_maybe.rs
+++ b/interpreter/src/lang/vocabulary/filters/field/field_filter_maybe.rs
@@ -1,45 +1,34 @@
 use std::collections::VecDeque;
 
-use super::utility::assert_comparison_operator;
+use super::super::utility::assert_comparison_operator;
 use super::{field_filter::VariableOrValue, FieldFilter, FieldFilterErrorHandling};
 use crate::lang::utility::{assert_token, assert_token_raw, assert_type, check_is_type};
 use crate::lang::LanguageDictionary;
 use crate::lang::SyntaxError;
-use crate::lang::{FilterFactory, FilterStatementFactory};
+//use crate::lang::{FilterFactory, FilterStatementFactory};
+use super::FieldFilterFactory;
 use crate::tokens::Token;
 
 pub struct FieldFilterMaybeFactory;
 
-impl FilterFactory<FieldFilter> for FieldFilterMaybeFactory {
-    fn is_filter(&self, tokens: &VecDeque<&Token>) -> bool {
+impl FieldFilterFactory<FieldFilter> for FieldFilterMaybeFactory {
+    fn is_filter(&self, tokens: &[Token]) -> bool {
         let tokens_len = tokens.len();
-        (tokens_len >= 4 // .field > variable OR .field < variable
-            && tokens[0].is_dot()
-            && tokens[1].is_name()
-            && (tokens[2].is_interrogation() || tokens[2].is_exclamation())
-            && (tokens[3].is_open_angle_bracket() || tokens[3].is_close_angle_bracket()))
-            || (tokens_len >= 5 // .field >= variable OR .field <= variable OR .field != variable OR .field == variable
-            && tokens[0].is_dot()
-            && tokens[1].is_name()
-            && (tokens[2].is_interrogation() || tokens[2].is_exclamation())
-            && (tokens[3].is_open_angle_bracket() || tokens[3].is_close_angle_bracket() || tokens[3].is_equals() || tokens[3].is_exclamation())
-            && tokens[4].is_equals())
+        (tokens_len >= 2 // .field > variable OR .field < variable
+            && (tokens[0].is_interrogation() || tokens[0].is_exclamation())
+            && (tokens[1].is_open_angle_bracket() || tokens[1].is_close_angle_bracket()))
+            || (tokens_len >= 3 // .field >= variable OR .field <= variable OR .field != variable OR .field == variable
+            && (tokens[0].is_interrogation() || tokens[0].is_exclamation())
+            && (tokens[1].is_open_angle_bracket() || tokens[1].is_close_angle_bracket() || tokens[1].is_equals() || tokens[1].is_exclamation())
+            && tokens[2].is_equals())
     }
 
     fn build_filter(
         &self,
         tokens: &mut VecDeque<Token>,
+        field: String,
         _dict: &LanguageDictionary,
     ) -> Result<FieldFilter, SyntaxError> {
-        assert_token_raw(Token::Dot, tokens)?;
-        let field = assert_token(
-            |t| match t {
-                Token::Name(n) => Some(n),
-                _ => None,
-            },
-            Token::Name("field_name".into()),
-            tokens,
-        )?;
         let error_f;
         let error_c;
         if tokens[0].is_interrogation() {
@@ -82,11 +71,3 @@ impl FilterFactory<FieldFilter> for FieldFilterMaybeFactory {
         }
     }
 }
-
-pub type FieldFilterMaybeStatementFactory =
-    FilterStatementFactory<FieldFilter, FieldFilterMaybeFactory>;
-
-#[inline(always)]
-pub fn field_filter_maybe() -> FieldFilterMaybeStatementFactory {
-    FieldFilterMaybeStatementFactory::new(FieldFilterMaybeFactory)
-}
diff --git a/interpreter/src/lang/vocabulary/filters/field_like_filter.rs b/interpreter/src/lang/vocabulary/filters/field/field_like_filter.rs
similarity index 78%
rename from interpreter/src/lang/vocabulary/filters/field_like_filter.rs
rename to interpreter/src/lang/vocabulary/filters/field/field_like_filter.rs
index 49331c6..3e700c0 100644
--- a/interpreter/src/lang/vocabulary/filters/field_like_filter.rs
+++ b/interpreter/src/lang/vocabulary/filters/field/field_like_filter.rs
@@ -5,7 +5,7 @@ use super::field_filter::{FieldFilterErrorHandling, VariableOrValue};
 use crate::lang::utility::{assert_token, assert_token_raw, check_name};
 use crate::lang::LanguageDictionary;
 use crate::lang::TypePrimitive;
-use crate::lang::{FilterFactory, FilterPredicate, FilterStatementFactory};
+use super::{FieldFilterFactory, FieldFilterPredicate};
 use crate::lang::{RuntimeMsg, SyntaxError};
 use crate::processing::general::Type;
 use crate::tokens::Token;
@@ -22,7 +22,7 @@ pub struct FieldLikeFilter {
 
 impl FieldLikeFilter {
     fn sanitise_string(s: &str) -> String {
-        super::utility::sanitise_string(s)
+        super::super::utility::sanitise_string(s)
     }
 }
 
@@ -35,7 +35,7 @@ impl Display for FieldLikeFilter {
     }
 }
 
-impl FilterPredicate for FieldLikeFilter {
+impl FieldFilterPredicate for FieldLikeFilter {
     fn matches(&mut self, music_item_lut: &Item, ctx: &mut Context) -> Result<bool, RuntimeMsg> {
         let variable = match &self.val {
             VariableOrValue::Variable(name) => match ctx.variables.get(name)? {
@@ -74,38 +74,30 @@ impl FilterPredicate for FieldLikeFilter {
     fn reset(&mut self) -> Result<(), RuntimeMsg> {
         Ok(())
     }
+
+    fn box_clone(&self) -> Box<dyn FieldFilterPredicate + 'static> {
+        Box::new(self.clone())
+    }
 }
 
 pub struct FieldLikeFilterFactory;
 
-impl FilterFactory<FieldLikeFilter> for FieldLikeFilterFactory {
-    fn is_filter(&self, tokens: &VecDeque<&Token>) -> bool {
+impl FieldFilterFactory<FieldLikeFilter> for FieldLikeFilterFactory {
+    fn is_filter(&self, tokens: &[Token]) -> bool {
         let tokens_len = tokens.len();
-        (tokens_len >= 3 // field like variable
-            && tokens[0].is_dot()
-            && tokens[1].is_name()
-            && (check_name("like", tokens[2]) || check_name("unlike", tokens[2])))
-            || (tokens_len >= 4 // field? like variable OR field! like variable
-            && tokens[0].is_dot()
-            && tokens[1].is_name()
-            && (tokens[2].is_interrogation() || tokens[2].is_exclamation())
-            && (check_name("like", tokens[3]) || check_name("unlike", tokens[3])))
+        (tokens_len >= 1 // field like variable
+            && (check_name("like", &tokens[0]) || check_name("unlike", &tokens[0])))
+            || (tokens_len >= 2 // field? like variable OR field! like variable
+            && (tokens[0].is_interrogation() || tokens[0].is_exclamation())
+            && (check_name("like", &tokens[1]) || check_name("unlike", &tokens[1])))
     }
 
     fn build_filter(
         &self,
         tokens: &mut VecDeque<Token>,
+        field: String,
         _dict: &LanguageDictionary,
     ) -> Result<FieldLikeFilter, SyntaxError> {
-        assert_token_raw(Token::Dot, tokens)?;
-        let field = assert_token(
-            |t| match t {
-                Token::Name(n) => Some(n),
-                _ => None,
-            },
-            Token::Name("field_name".into()),
-            tokens,
-        )?;
         let error_handling = if tokens[0].is_interrogation() {
             assert_token_raw(Token::Interrogation, tokens)?;
             FieldFilterErrorHandling::Ignore
@@ -164,11 +156,3 @@ impl FilterFactory<FieldLikeFilter> for FieldLikeFilterFactory {
         }
     }
 }
-
-pub type FieldLikeFilterStatementFactory =
-    FilterStatementFactory<FieldLikeFilter, FieldLikeFilterFactory>;
-
-#[inline(always)]
-pub fn field_like_filter() -> FieldLikeFilterStatementFactory {
-    FieldLikeFilterStatementFactory::new(FieldLikeFilterFactory)
-}
diff --git a/interpreter/src/lang/vocabulary/filters/field_match_filter.rs b/interpreter/src/lang/vocabulary/filters/field/field_match_filter.rs
similarity index 85%
rename from interpreter/src/lang/vocabulary/filters/field_match_filter.rs
rename to interpreter/src/lang/vocabulary/filters/field/field_match_filter.rs
index adab26d..0cc1f3c 100644
--- a/interpreter/src/lang/vocabulary/filters/field_match_filter.rs
+++ b/interpreter/src/lang/vocabulary/filters/field/field_match_filter.rs
@@ -7,7 +7,7 @@ use super::field_filter::{FieldFilterErrorHandling, VariableOrValue};
 use crate::lang::utility::{assert_name, assert_token, assert_token_raw, check_name};
 use crate::lang::LanguageDictionary;
 use crate::lang::TypePrimitive;
-use crate::lang::{FilterFactory, FilterPredicate, FilterStatementFactory};
+use super::{FieldFilterFactory, FieldFilterPredicate};
 use crate::lang::{RuntimeMsg, SyntaxError};
 use crate::processing::general::Type;
 use crate::tokens::Token;
@@ -32,7 +32,7 @@ impl Display for FieldRegexFilter {
     }
 }
 
-impl FilterPredicate for FieldRegexFilter {
+impl FieldFilterPredicate for FieldRegexFilter {
     fn matches(&mut self, music_item_lut: &Item, ctx: &mut Context) -> Result<bool, RuntimeMsg> {
         let variable = match &self.val {
             VariableOrValue::Variable(name) => match ctx.variables.get(name)? {
@@ -83,38 +83,30 @@ impl FilterPredicate for FieldRegexFilter {
         //self.regex_cache = None;
         Ok(())
     }
+
+    fn box_clone(&self) -> Box<dyn FieldFilterPredicate + 'static> {
+        Box::new(self.clone())
+    }
 }
 
 pub struct FieldRegexFilterFactory;
 
-impl FilterFactory<FieldRegexFilter> for FieldRegexFilterFactory {
-    fn is_filter(&self, tokens: &VecDeque<&Token>) -> bool {
+impl FieldFilterFactory<FieldRegexFilter> for FieldRegexFilterFactory {
+    fn is_filter(&self, tokens: &[Token]) -> bool {
         let tokens_len = tokens.len();
-        (tokens_len >= 3 // .field like variable
-            && tokens[0].is_dot()
-            && tokens[1].is_name()
-            && check_name("matches", tokens[2]))
-            || (tokens_len >= 4 // .field? like variable OR .field! like variable
-            && tokens[0].is_dot()
-            && tokens[1].is_name()
-            && (tokens[2].is_interrogation() || tokens[2].is_exclamation())
-            && check_name("matches", tokens[3]))
+        (tokens_len >= 1 // .field like variable
+            && check_name("matches", &tokens[0]))
+            || (tokens_len >= 2 // .field? like variable OR .field! like variable
+            && (tokens[0].is_interrogation() || tokens[0].is_exclamation())
+            && check_name("matches", &tokens[1]))
     }
 
     fn build_filter(
         &self,
         tokens: &mut VecDeque<Token>,
+        field: String,
         _dict: &LanguageDictionary,
     ) -> Result<FieldRegexFilter, SyntaxError> {
-        assert_token_raw(Token::Dot, tokens)?;
-        let field = assert_token(
-            |t| match t {
-                Token::Name(n) => Some(n),
-                _ => None,
-            },
-            Token::Name("field_name".into()),
-            tokens,
-        )?;
         let error_handling = if tokens[0].is_interrogation() {
             assert_token_raw(Token::Interrogation, tokens)?;
             FieldFilterErrorHandling::Ignore
@@ -220,11 +212,3 @@ fn build_regex(pattern: &str, flags: u8) -> Result<Regex, regex::Error> {
         .ignore_whitespace((flags & (1 << 5)) != 0)
         .build()
 }
-
-pub type FieldRegexFilterStatementFactory =
-    FilterStatementFactory<FieldRegexFilter, FieldRegexFilterFactory>;
-
-#[inline(always)]
-pub fn field_re_filter() -> FieldRegexFilterStatementFactory {
-    FieldRegexFilterStatementFactory::new(FieldRegexFilterFactory)
-}
diff --git a/interpreter/src/lang/vocabulary/filters/field/mod.rs b/interpreter/src/lang/vocabulary/filters/field/mod.rs
new file mode 100644
index 0000000..f419ae5
--- /dev/null
+++ b/interpreter/src/lang/vocabulary/filters/field/mod.rs
@@ -0,0 +1,14 @@
+mod field_filter;
+mod field_filter_factory;
+mod field_filter_maybe;
+mod field_like_filter;
+mod field_match_filter;
+
+pub use field_filter::{
+    FieldFilter, FieldFilterErrorHandling, FieldFilterComparisonFactory,
+};
+pub use field_filter_maybe::FieldFilterMaybeFactory;
+pub use field_like_filter::FieldLikeFilterFactory;
+pub use field_match_filter::FieldRegexFilterFactory;
+
+pub use field_filter_factory::*;
diff --git a/interpreter/src/lang/vocabulary/filters/mod.rs b/interpreter/src/lang/vocabulary/filters/mod.rs
index fa3dbbf..52cd832 100644
--- a/interpreter/src/lang/vocabulary/filters/mod.rs
+++ b/interpreter/src/lang/vocabulary/filters/mod.rs
@@ -1,8 +1,5 @@
 mod empty_filter;
-mod field_filter;
-mod field_filter_maybe;
-mod field_like_filter;
-mod field_match_filter;
+pub mod field;
 mod index_filter;
 mod nonempty_filter;
 mod range_filter;
@@ -12,19 +9,6 @@ pub(crate) mod utility;
 pub use empty_filter::{
     empty_filter, EmptyFilter, EmptyFilterFactory, EmptyFilterStatementFactory,
 };
-pub use field_filter::{
-    field_filter, FieldFilter, FieldFilterErrorHandling, FieldFilterFactory,
-    FieldFilterStatementFactory,
-};
-pub use field_filter_maybe::{
-    field_filter_maybe, FieldFilterMaybeFactory, FieldFilterMaybeStatementFactory,
-};
-pub use field_like_filter::{
-    field_like_filter, FieldLikeFilterFactory, FieldLikeFilterStatementFactory,
-};
-pub use field_match_filter::{
-    field_re_filter, FieldRegexFilterFactory, FieldRegexFilterStatementFactory,
-};
 pub use index_filter::{
     index_filter, IndexFilter, IndexFilterFactory, IndexFilterStatementFactory,
 };
diff --git a/interpreter/src/lang/vocabulary/filters/unique.rs b/interpreter/src/lang/vocabulary/filters/unique.rs
index 5fba264..dcb12d9 100644
--- a/interpreter/src/lang/vocabulary/filters/unique.rs
+++ b/interpreter/src/lang/vocabulary/filters/unique.rs
@@ -1,7 +1,7 @@
 use std::collections::{HashSet, VecDeque};
 use std::fmt::{Debug, Display, Error, Formatter};
 
-use super::field_filter::FieldFilterErrorHandling;
+use super::field::FieldFilterErrorHandling;
 use crate::lang::utility::{assert_name, assert_token, assert_token_raw, check_name};
 use crate::lang::{FilterFactory, FilterPredicate, FilterStatementFactory};
 use crate::lang::{LanguageDictionary, TypePrimitive};