Remove "where" clause filtering

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

5 files changed, 1 insertions, 788 deletions

diff --git a/bin/core/imag-ids/Cargo.toml b/bin/core/imag-ids/Cargo.toml
index 05167dd1..d4570a69 100644
--- a/bin/core/imag-ids/Cargo.toml
+++ b/bin/core/imag-ids/Cargo.toml
@@ -21,11 +21,9 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 filters    = "0.3.0"
-nom        = "3.2.0"
 log        = "0.4.6"
 toml       = "0.5.1"
 toml-query = "0.9.2"
-is-match   = "0.1.0"
 failure    = "0.1.5"
 
 libimagstore     = { version = "0.10.0", path = "../../../lib/core/libimagstore" }
diff --git a/bin/core/imag-ids/src/id_filters.rs b/bin/core/imag-ids/src/id_filters.rs
index da9de964..55587098 100644
--- a/bin/core/imag-ids/src/id_filters.rs
+++ b/bin/core/imag-ids/src/id_filters.rs
@@ -43,701 +43,3 @@ impl<'a, A> Filter<StoreId> for IsInCollectionsFilter<'a, A>
     }
 }
 
-/// Language definition for the header-filter language
-pub mod header_filter_lang {
-    use std::str;
-    use std::str::FromStr;
-    use std::process::exit;
-
-    use nom::digit;
-    use nom::multispace;
-    use failure::Error;
-
-    use libimagstore::store::Entry;
-    use libimagerror::trace::MapErrTrace;
-
-    #[derive(Debug, PartialEq, Eq)]
-    enum Unary {
-        Not
-    }
-
-    named!(unary_operator<Unary>, alt_complete!(
-        tag!("not") => { |_| { trace!("Unary::Not"); Unary::Not }}
-    ));
-
-    #[derive(Debug, PartialEq, Eq)]
-    enum CompareOp {
-        OpIs,
-        OpIn,
-        OpEq,
-        OpNeq,
-        OpGte, // >=
-        OpLte, // <=
-        OpLt,  // <
-        OpGt,  // >
-    }
-
-    named!(compare_op<CompareOp>, alt_complete!(
-        tag!("is" ) => { |_| { trace!("CompareOp::OpIs");  CompareOp::OpIs }} |
-        tag!("in" ) => { |_| { trace!("CompareOp::OpIn");  CompareOp::OpIn }} |
-        tag!("==" ) => { |_| { trace!("CompareOp::OpEq");  CompareOp::OpEq }} |
-        tag!("eq" ) => { |_| { trace!("CompareOp::OpEq");  CompareOp::OpEq }} |
-        tag!("!=" ) => { |_| { trace!("CompareOp::OpNeq"); CompareOp::OpNeq }} |
-        tag!("neq") => { |_| { trace!("CompareOp::OpNeq"); CompareOp::OpNeq }} |
-        tag!(">=" ) => { |_| { trace!("CompareOp::OpGte"); CompareOp::OpGte }} |
-        tag!("<=" ) => { |_| { trace!("CompareOp::OpLte"); CompareOp::OpLte }} |
-        tag!("<"  ) => { |_| { trace!("CompareOp::OpLt");  CompareOp::OpLt }}  |
-        tag!(">"  ) => { |_| { trace!("CompareOp::OpGt");  CompareOp::OpGt }}
-    ));
-
-    #[derive(Debug, PartialEq, Eq)]
-    enum Operator {
-        Or,
-        And,
-        Xor,
-    }
-
-    named!(operator<Operator>, alt_complete!(
-        tag!("or")      => { |_| { trace!("Operator::Or");  Operator::Or  }} |
-        tag!("and")     => { |_| { trace!("Operator::And"); Operator::And }} |
-        tag!("xor")     => { |_| { trace!("Operator::Xor"); Operator::Xor }}
-    ));
-
-    #[derive(Debug, PartialEq, Eq)]
-    enum Function {
-        Length,
-        Keys,
-        Values,
-    }
-
-    named!(function<Function>, alt_complete!(
-        tag!("length") => { |_| { trace!("Function::Length"); Function::Length }} |
-        tag!("keys")   => { |_| { trace!("Function::Keys");   Function::Keys   }} |
-        tag!("values") => { |_| { trace!("Function::Values"); Function::Values }}
-    ));
-
-    #[derive(Debug, PartialEq, Eq)]
-    enum Value {
-        Boolean(bool),
-        Integer(i64),
-        String(String),
-    }
-
-    named!(int64<i64>, map!(digit, |r: &[u8]| {
-        let val = str::from_utf8(r).unwrap_or_else(|e| {
-            error!("Error = '{:?}'", e);
-            ::std::process::exit(1)
-        });
-
-        i64::from_str(val).unwrap_or_else(|e| {
-            error!("Error while parsing number: '{:?}'", e);
-            ::std::process::exit(1)
-        })
-    }));
-
-    named!(signed_digits<(Option<&[u8]>, i64)>,
-        pair!(opt!(alt!(tag_s!("+") | tag_s!("-"))), int64)
-    );
-    named!(integer<i64>, do_parse!(tpl: signed_digits >> ({
-        let v = match tpl.0 {
-            Some(b"-") => -tpl.1,
-            _          => tpl.1,
-        };
-        trace!("integer = {:?}", v);
-        v
-    })));
-
-    named!(boolean<bool>, alt_complete!(
-        tag!("false") => { |_| { trace!("'false'"); false }} |
-        tag!("true")  => { |_| { trace!("'true'"); true }}
-    ));
-
-    named!(string<String>, do_parse!(
-       text: delimited!(char!('"'), take_until!("\""), char!('"'))
-       >> ({
-           let s = String::from_utf8(text.to_vec()).unwrap();
-           trace!("Parsed string: {:?}", s);
-           s
-       })
-    ));
-
-    named!(val<Value>, alt_complete!(
-        do_parse!(b: boolean >> ({
-            let v = Value::Boolean(b);
-            trace!("Value = {:?}", v);
-            v
-        })) |
-        do_parse!(number: integer >> ({
-            let v = Value::Integer(number);
-            trace!("Value = {:?}", v);
-            v
-        })) |
-        do_parse!(text: string >> ({
-            let v = Value::String(text);
-            trace!("Value = {:?}", v);
-            v
-        }))
-    ));
-
-    named!(list_of_val<Vec<Value>>, do_parse!(
-            char!('[') >>
-            list: many0!(
-                do_parse!(
-                    list: terminated!(val, opt!(char!(','))) >>
-                    opt!(multispace) >>
-                    (list)
-            )) >>
-            char!(']') >> (list)
-    ));
-
-    #[derive(Debug, PartialEq, Eq)]
-    enum CompareValue {
-        Value(Value),
-        Values(Vec<Value>)
-    }
-
-    named!(compare_value<CompareValue>, alt_complete!(
-        do_parse!(list: list_of_val >> (CompareValue::Values(list))) |
-        do_parse!(val: val >> (CompareValue::Value(val)))
-    ));
-
-    #[derive(Debug, PartialEq, Eq)]
-    enum Selector {
-        Direct(String),
-        Function(Function, String)
-    }
-
-    impl Selector {
-        fn selector_str(&self) -> &String {
-            match *self {
-                Selector::Direct(ref s)      => s,
-                Selector::Function(_, ref s) => s,
-            }
-        }
-        fn function(&self) -> Option<&Function> {
-            match *self {
-                Selector::Direct(_)          => None,
-                Selector::Function(ref f, _) => Some(f),
-            }
-        }
-    }
-
-    named!(selector_str<String>, do_parse!(
-        selector: take_till!(|s: u8| s == b' ') >> (String::from_utf8(selector.to_vec()).unwrap())
-    ));
-
-    named!(bracketed,
-        delimited!(
-            tag!("("),
-            take_until!(")"),
-            tag!(")")
-        )
-    );
-
-    named!(selector<Selector>, alt_complete!(
-        do_parse!(fun: function >> sel: bracketed >> ({
-            let sel = Selector::Function(fun, String::from_utf8(sel.to_vec()).unwrap());
-            trace!("Building Selector object: {:?}", sel);
-            sel
-        })) |
-        do_parse!(sel: selector_str >> ({
-            let sel = Selector::Direct(sel);
-            trace!("Building Selector object: {:?}", sel);
-            sel
-        }))
-    ));
-
-    #[derive(Debug, PartialEq, Eq)]
-    struct Filter {
-        unary            : Option<Unary>,
-        selector         : Selector,
-        compare_operator : CompareOp,
-        compare_value    : CompareValue,
-    }
-
-    named!(filter<Filter>, do_parse!(
-            unary: opt!(unary_operator) >>
-            selec: selector >> opt!(multispace) >>
-            comop: compare_op >> opt!(multispace) >>
-            cmval: compare_value >>
-            ({
-                let f = Filter {
-                    unary:              unary,
-                    selector:           selec,
-                    compare_operator:   comop,
-                    compare_value:      cmval,
-                };
-
-                trace!("Building Filter object: {:?}", f);
-                f
-            })
-    ));
-
-    #[derive(Debug, PartialEq, Eq)]
-    pub struct Query {
-        filter: Filter,
-        next_filters: Vec<(Operator, Filter)>,
-    }
-
-    named!(parse_query<Query>, do_parse!(
-            filt: filter >>
-            next: many0!(do_parse!(opt!(multispace) >> op: operator >> opt!(multispace) >> fil: filter >> ((op, fil)))) >>
-            ({
-                let q = Query {
-                    filter:       filt,
-                    next_filters: next,
-                };
-
-                trace!("Building Query object: {:?}", q);
-
-                q
-            })
-    ));
-
-    /// Helper type which can filters::filter::Filter be implemented on so that the implementation
-    /// of ::filters::filter::Filter on self::Filter is less complex.
-    struct Comparator<'a>(&'a CompareOp, &'a CompareValue);
-
-    impl<'a> ::filters::filter::Filter<::toml::Value> for Comparator<'a> {
-        fn filter(&self, val: &::toml::Value) -> bool {
-            use self::CompareValue as CV;
-            use self::CompareOp    as CO;
-            use toml::Value        as TVal;
-
-            match *self.0 {
-                CO::OpIs => match self.1 {
-                    &CV::Values(_) => error_exit("Cannot check whether a header field is the same type as mulitple values!"),
-                    &CV::Value(ref v) => {
-                        trace!("Checking whether {:?} and {:?} have same type", v, val);
-                        match v {
-                            &Value::Boolean(_) => is_match!(*val, TVal::Boolean(_)),
-                            &Value::Integer(_) => is_match!(*val, TVal::Integer(_)),
-                            &Value::String(_)  => is_match!(val, &TVal::String(_)),
-                        }
-                    },
-                },
-                CO::OpIn => {
-                    trace!("Checking whether {:?} is in {:?}", self.1, val);
-                    match (self.1, val) {
-                        (&CV::Value(Value::Boolean(i)), &TVal::Boolean(j))       => i == j,
-                        (&CV::Value(Value::Integer(i)), &TVal::Integer(j))       => i == j,
-                        (&CV::Value(Value::String(ref s)), &TVal::String(ref b)) => s.contains(b),
-                        (&CV::Value(_), _)                                       => false,
-
-                        (&CV::Values(ref v), &TVal::Integer(j)) => v.iter().any(|e| match e {
-                            &Value::Integer(i) => i == j,
-                            _                  => false
-                        }),
-                        (&CV::Values(ref v), &TVal::String(ref b)) => v.iter().any(|e| match e {
-                            &Value::String(ref s) => s == b,
-                            _                     => false
-                        }),
-                        (&CV::Values(_), _) => false,
-                    }
-                },
-                CO::OpEq => {
-                    trace!("Checking whether {:?} == {:?}", self.1, val);
-                    match (self.1, val) {
-                        (&CV::Value(Value::Boolean(i)), &TVal::Boolean(j))       => i == j,
-                        (&CV::Value(Value::Integer(i)), &TVal::Integer(j))       => i == j,
-                        (&CV::Value(Value::String(ref s)), &TVal::String(ref b)) => s == b,
-                        (&CV::Value(_), _)  => false,
-                        (&CV::Values(_), _) => error_exit("Cannot check a header field for equality to multiple header fields!"),
-                    }
-                },
-                CO::OpNeq => {
-                    trace!("Checking whether {:?} != {:?}", self.1, val);
-                    match (self.1, val) {
-                        (&CV::Value(Value::Boolean(i)), &TVal::Boolean(j))       => i != j,
-                        (&CV::Value(Value::Integer(i)), &TVal::Integer(j))       => i != j,
-                        (&CV::Value(Value::String(ref s)), &TVal::String(ref b)) => s != b,
-                        (&CV::Value(_), _) => false,
-                        (&CV::Values(_), _) => error_exit("Cannot check a header field for inequality to multiple header fields!"),
-                    }
-                },
-                CO::OpGte => {
-                    trace!("Checking whether {:?} >= {:?}", self.1, val);
-                    match (self.1, val) {
-                        (&CV::Value(Value::Integer(i)), &TVal::Integer(j)) => i >= j,
-                        (&CV::Value(_), _)  => false,
-                        (&CV::Values(_), _) => error_exit("Cannot check a header field for greater_than_equal to multiple header fields!"),
-                    }
-                },
-                CO::OpLte => {
-                    trace!("Checking whether {:?} <= {:?}", self.1, val);
-                    match (self.1, val) {
-                        (&CV::Value(Value::Integer(i)), &TVal::Integer(j)) => i <= j,
-                        (&CV::Value(_), _)  => false,
-                        (&CV::Values(_), _) => error_exit("Cannot check a header field for lesser_than_equal to multiple header fields!"),
-                    }
-                },
-                CO::OpLt => {
-                    trace!("Checking whether {:?} < {:?}", self.1, val);
-                    match (self.1, val) {
-                        (&CV::Value(Value::Integer(i)), &TVal::Integer(j)) => i < j,
-                        (&CV::Value(_), _)  => false,
-                        (&CV::Values(_), _) => error_exit("Cannot check a header field for lesser_than to multiple header fields!"),
-                    }
-                },
-                CO::OpGt => {
-                    trace!("Checking whether {:?} > {:?}", self.1, val);
-                    match (self.1, val) {
-                        (&CV::Value(Value::Integer(i)), &TVal::Integer(j)) => i > j,
-                        (&CV::Value(_), _)  => false,
-                        (&CV::Values(_), _) => {
-                            error!("Cannot check a header field for greater_than to multiple header fields!");
-                            exit(1)
-                        },
-                    }
-                },
-            }
-        }
-    }
-
-    impl ::filters::filter::Filter<Entry> for Filter {
-        fn filter(&self, entry: &Entry) -> bool {
-            use toml_query::read::TomlValueReadExt;
-
-            let selector_str = self.selector.selector_str();
-            trace!("Filtering {} at {}", entry.get_location(), selector_str);
-
-            entry
-                .get_header()
-                .read(selector_str)
-                .map_err(Error::from)
-                .map_err_trace_exit_unwrap()
-                .map(|value| {
-                    let comp = Comparator(&self.compare_operator, &self.compare_value);
-                    let val = match self.selector.function() {
-                        None => {
-                            ::filters::filter::Filter::filter(&comp, value)
-                        }
-                        Some(func) => {
-                            match *func {
-                                Function::Length => {
-                                    let val = match value {
-                                        &::toml::Value::Array(ref a)  => a.len() as i64,
-                                        &::toml::Value::String(ref s) => s.len() as i64,
-                                        _                            => 1
-                                    };
-                                    let val = ::toml::Value::Integer(val);
-                                    ::filters::filter::Filter::filter(&comp, &val)
-                                },
-                                Function::Keys => {
-                                    let keys = match value {
-                                        &::toml::Value::Table(ref tab) => tab
-                                            .keys()
-                                            .cloned()
-                                            .map(::toml::Value::String)
-                                            .collect(),
-                                        _ => return false,
-                                    };
-                                    let keys = ::toml::Value::Array(keys);
-                                    ::filters::filter::Filter::filter(&comp, &keys)
-                                },
-                                Function::Values => {
-                                    let vals = match value {
-                                        &::toml::Value::Table(ref tab) => tab
-                                            .values()
-                                            .cloned()
-                                            .collect(),
-                                        _ => return false,
-                                    };
-                                    let vals = ::toml::Value::Array(vals);
-                                    ::filters::filter::Filter::filter(&comp, &vals)
-                                },
-                            }
-                        }
-                    };
-
-                    match self.unary {
-                        Some(Unary::Not) => !val,
-                        _                => val
-                    }
-                })
-                .unwrap_or(false)
-        }
-    }
-
-    impl ::filters::filter::Filter<Entry> for Query {
-
-        fn filter(&self, entry: &Entry) -> bool {
-            trace!("Filtering = {}", entry.get_location());
-            let mut res = self.filter.filter(entry);
-            trace!("First filter = {}", res);
-
-            for &(ref operator, ref next) in self.next_filters.iter() {
-                match *operator {
-                    Operator::Or => {
-                        trace!("Operator = {} OR {:?}", res, next);
-                        res = res || ::filters::filter::Filter::filter(next, entry);
-                    },
-                    Operator::And => {
-                        trace!("Operator = {} AND {:?}", res, next);
-                        res = res && ::filters::filter::Filter::filter(next, entry);
-                    },
-                    Operator::Xor => {
-                        trace!("Operator = {} XOR {:?}", res, next);
-                        let other = ::filters::filter::Filter::filter(next, entry);
-                        res = (res && !other) || (!res && other);
-                    },
-                }
-                trace!("After applying next filter = {}", res);
-            }
-
-            res
-        }
-
-    }
-
-    fn error_exit(s: &'static str) -> ! {
-        error!("{}", s);
-        exit(1)
-    }
-
-    pub fn parse(s: &str) -> Query {
-        match parse_query(s.as_bytes()) {
-            ::nom::IResult::Done(_i, o) => o,
-            ::nom::IResult::Error(e) => {
-                error!("Error during parsing the query");
-                error!("Error = {:?}", e);
-                ::std::process::exit(1)
-            },
-            ::nom::IResult::Incomplete(needed) => {
-                error!("Error during parsing the query. Incomplete input.");
-                error!("Needed = {:?}", needed);
-                ::std::process::exit(1)
-            },
-        }
-    }
-
-    #[cfg(test)]
-    mod tests {
-        use super::*;
-
-        fn setup_logging() {
-            let _ = ::env_logger::try_init();
-        }
-
-        #[test]
-        fn test_unary() {
-            assert_eq!(unary_operator(b"not").unwrap().1, Unary::Not);
-        }
-
-        #[test]
-        fn test_compare_op() {
-            assert_eq!(compare_op(b"is"  ).unwrap().1, CompareOp::OpIs );
-            assert_eq!(compare_op(b"in"  ).unwrap().1, CompareOp::OpIn );
-            assert_eq!(compare_op(b"=="  ).unwrap().1, CompareOp::OpEq );
-            assert_eq!(compare_op(b"eq"  ).unwrap().1, CompareOp::OpEq );
-            assert_eq!(compare_op(b"!="  ).unwrap().1, CompareOp::OpNeq);
-            assert_eq!(compare_op(b"neq" ).unwrap().1, CompareOp::OpNeq);
-            assert_eq!(compare_op(b">="  ).unwrap().1, CompareOp::OpGte);
-            assert_eq!(compare_op(b"<="  ).unwrap().1, CompareOp::OpLte);
-            assert_eq!(compare_op(b"<"   ).unwrap().1, CompareOp::OpLt );
-            assert_eq!(compare_op(b">"   ).unwrap().1, CompareOp::OpGt );
-        }
-
-        #[test]
-        fn test_operator() {
-            assert_eq!(operator(b"or").unwrap().1, Operator::Or  );
-            assert_eq!(operator(b"and").unwrap().1, Operator::And );
-            assert_eq!(operator(b"xor").unwrap().1, Operator::Xor );
-        }
-
-        #[test]
-        fn test_function() {
-            assert_eq!(function(b"length").unwrap().1, Function::Length );
-            assert_eq!(function(b"keys").unwrap().1, Function::Keys );
-            assert_eq!(function(b"values").unwrap().1, Function::Values );
-        }
-
-        #[test]
-        fn test_integer() {
-            assert_eq!(integer(b"12").unwrap().1, 12);
-            assert_eq!(integer(b"11292").unwrap().1, 11292);
-            assert_eq!(integer(b"-12").unwrap().1, -12);
-            assert_eq!(integer(b"10101012").unwrap().1, 10101012);
-        }
-
-        #[test]
-        fn test_string() {
-            assert_eq!(string(b"\"foo\"").unwrap().1, "foo");
-        }
-
-        #[test]
-        fn test_boolean() {
-            assert_eq!(boolean(b"false").unwrap().1, false);
-            assert_eq!(boolean(b"true").unwrap().1, true);
-        }
-
-        #[test]
-        fn test_val() {
-            assert_eq!(val(b"false").unwrap().1, Value::Boolean(false));
-            assert_eq!(val(b"true").unwrap().1, Value::Boolean(true));
-            assert_eq!(val(b"12").unwrap().1, Value::Integer(12));
-            assert_eq!(val(b"\"foobar\"").unwrap().1, Value::String(String::from("foobar")));
-        }
-
-        #[test]
-        fn test_list_of_val() {
-            setup_logging();
-            {
-                let list = list_of_val(b"[]");
-                debug!("list: {:?}", list);
-                let vals = list.unwrap().1;
-                assert_eq!(vals, vec![]);
-            }
-
-            {
-                let list = list_of_val(b"[1]");
-                debug!("list: {:?}", list);
-                let vals = list.unwrap().1;
-                assert_eq!(vals, vec![Value::Integer(1)]);
-            }
-
-            {
-                let list = list_of_val(b"[12,13]");
-                debug!("list: {:?}", list);
-                let vals = list.unwrap().1;
-                assert_eq!(vals, vec![Value::Integer(12), Value::Integer(13)]);
-            }
-
-            {
-                let vals = list_of_val(b"[\"foobar\",\"bazbaz\"]").unwrap().1;
-                let expt = vec![Value::String(String::from("foobar")),
-                                Value::String(String::from("bazbaz"))];
-                assert_eq!(vals, expt)
-            }
-
-            {
-                let vals = list_of_val(b"[\"1\", \"2\"]").unwrap().1;
-                let expt = vec![Value::String(String::from("1")),
-                                Value::String(String::from("2"))];
-                assert_eq!(vals, expt)
-            }
-        }
-
-        #[test]
-        fn test_selector_str() {
-            assert_eq!(selector_str(b"foo.bar baz").unwrap().1, String::from("foo.bar"));
-        }
-
-        #[test]
-        fn test_selector() {
-            assert_eq!(selector(b"foo.bar baz").unwrap().1, Selector::Direct(String::from("foo.bar")));
-
-            assert_eq!(function(b"length").unwrap().1, Function::Length);
-
-            let exp = Selector::Function(Function::Length, String::from("foo.bar"));
-            assert_eq!(selector(b"length(foo.bar)").unwrap().1, exp);
-        }
-
-        #[test]
-        fn test_filter_1() {
-            setup_logging();
-            trace!("Setup worked");
-            let text = b"imag.header == 1";
-            let exp = Filter {
-                unary: None,
-                selector: Selector::Direct(String::from("imag.header")),
-                compare_operator: CompareOp::OpEq,
-                compare_value: CompareValue::Value(Value::Integer(1))
-            };
-
-            let parsed = filter(text);
-            trace!("{:?}", parsed);
-            assert_eq!(parsed.unwrap().1, exp);
-        }
-
-        #[test]
-        fn test_filter_2() {
-            setup_logging();
-            trace!("Setup worked");
-            let text = b"imag.header in [1, 2]";
-            let exp = Filter {
-                unary: None,
-                selector: Selector::Direct(String::from("imag.header")),
-                compare_operator: CompareOp::OpIn,
-                compare_value: CompareValue::Values(vec![Value::Integer(1), Value::Integer(2)])
-            };
-
-            let parsed = filter(text);
-            trace!("{:?}", parsed);
-            assert_eq!(parsed.unwrap().1, exp);
-        }
-
-        #[test]
-        fn test_filter_3() {
-            setup_logging();
-            trace!("Setup worked");
-            let text = b"length(imag.header) > 12";
-            let exp = Filter {
-                unary: None,
-                selector: Selector::Function(Function::Length, String::from("imag.header")),
-                compare_operator: CompareOp::OpGt,
-                compare_value: CompareValue::Value(Value::Integer(12))
-            };
-
-            let parsed = filter(text);
-            trace!("{:?}", parsed);
-            assert_eq!(parsed.unwrap().1, exp);
-        }
-
-        #[test]
-        fn test_query_1() {
-            setup_logging();
-            trace!("Setup worked");
-            let text = b"length(imag.header) > 12 or imag.foobar <= 125";
-
-            let filter_1 = Filter {
-                unary: None,
-                selector: Selector::Function(Function::Length, String::from("imag.header")),
-                compare_operator: CompareOp::OpGt,
-                compare_value: CompareValue::Value(Value::Integer(12))
-            };
-
-            let filter_2 = Filter {
-                unary: None,
-                selector: Selector::Direct(String::from("imag.foobar")),
-                compare_operator: CompareOp::OpLte,
-                compare_value: CompareValue::Value(Value::Integer(125))
-            };
-
-            let operator = Operator::Or;
-
-            let query = Query {
-                filter: filter_1,
-                next_filters: vec![(operator, filter_2)],
-            };
-
-            let parsed = parse_query(text);
-            trace!("{:?}", parsed);
-            assert_eq!(parsed.unwrap().1, query);
-        }
-
-        #[test]
-        fn test_query_2() {
-            setup_logging();
-            trace!("Setup worked");
-            let text = r#"imag.version == "0.7.0""#;
-
-            let filter_1 = Filter {
-                unary: None,
-                selector: Selector::Direct(String::from("imag.version")),
-                compare_operator: CompareOp::OpEq,
-                compare_value: CompareValue::Value(Value::String(String::from("0.7.0")))
-            };
-
-            let query = Query {
-                filter: filter_1,
-                next_filters: vec![],
-            };
-
-            let parsed = parse_query(text.as_bytes());
-            trace!("{:?}", parsed);
-            assert_eq!(parsed.unwrap().1, query);
-        }
-    }
-}
-
diff --git a/bin/core/imag-ids/src/main.rs b/bin/core/imag-ids/src/main.rs
index 4284b475..fbfdd420 100644
--- a/bin/core/imag-ids/src/main.rs
+++ b/bin/core/imag-ids/src/main.rs
@@ -36,9 +36,7 @@
 
 extern crate clap;
 extern crate filters;
-#[macro_use] extern crate nom;
 #[macro_use] extern crate log;
-#[macro_use] extern crate is_match;
 extern crate toml;
 extern crate toml_query;
 #[macro_use] extern crate failure;
@@ -51,7 +49,6 @@ extern crate libimagstore;
 #[macro_use] extern crate libimagrt;
 
 use std::io::Write;
-use std::process::exit;
 
 use filters::filter::Filter;
 
@@ -83,13 +80,6 @@ fn main() {
         .map(|v| v.collect::<Vec<&str>>());
 
     let collection_filter = IsInCollectionsFilter::new(values);
-    let query_filter      : Option<id_filters::header_filter_lang::Query> = rt
-        .cli()
-        .subcommand_matches("where")
-        .map(|matches| {
-            let query = matches.value_of("where-filter").unwrap(); // safe by clap
-            id_filters::header_filter_lang::parse(&query)
-        });
 
     let iterator = if rt.ids_from_stdin() {
         debug!("Fetching IDs from stdin...");
@@ -108,21 +98,6 @@ fn main() {
     }
     .trace_unwrap_exit()
     .filter(|id| collection_filter.filter(id))
-    .filter(|id| match query_filter.as_ref() {
-        None     => true,
-        Some(qf) => {
-            let entry = rt
-                .store()
-                .get(id.clone())
-                .map_err_trace_exit_unwrap()
-                .unwrap_or_else(|| {
-                    error!("Tried to get '{}', but it does not exist!", id);
-                    exit(1)
-                });
-
-            qf.filter(&entry)
-        }
-    })
     .map(|id| if print_storepath {
         (Some(rt.store().path()), id)
     } else {
diff --git a/bin/core/imag-ids/src/ui.rs b/bin/core/imag-ids/src/ui.rs
index 7cfde684..81903f69 100644
--- a/bin/core/imag-ids/src/ui.rs
+++ b/bin/core/imag-ids/src/ui.rs
@@ -17,7 +17,7 @@
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //
 
-use clap::{Arg, ArgMatches, App, SubCommand};
+use clap::{Arg, ArgMatches, App};
 use failure::Fallible as Result;
 
 use libimagstore::storeid::StoreId;
@@ -40,17 +40,6 @@ pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
              .multiple(true)
              .value_names(&["COLLECTION"])
              .help("Filter for ids which are only in these collections"))
-
-        .subcommand(SubCommand::with_name("where")
-                    .arg(Arg::with_name("where-filter")
-                         .index(1)
-                         .required(true)
-                         .takes_value(true)
-                         .multiple(false)
-                         .value_names(&["QUERY"])
-                         .help("Query the header of the entries and filter them"))
-                   )
-        .after_help(include_str!("../static/language-doc.md"))
 }
 
 pub struct PathProvider;
diff --git a/bin/core/imag-ids/static/language-doc.md b/bin/core/imag-ids/static/language-doc.md
deleted file mode 100644
index 362c5877..00000000
--- a/bin/core/imag-ids/static/language-doc.md
+++ /dev/null
@@ -1,51 +0,0 @@
-Language documentation for the imag-ids query language
-======================================================
-
-The query language imag-ids supports is rather simple.
-It can be used to filter the printed imag ids by the values in the header of the
-entries. It has no way to access the content of the entries (yet).
-
-Following is a BNF-like structure shown how the language definition works.
-This definition may change over time, as the language grews more powerful.
-
-```ignore
-query = filter (operator filter)*
-
-filter = unary? ( (function "(" selector ")" ) | selector ) op val
-
-unary = "not"
-
-op =
-    "is"  |
-    "in"  |
-    "=="  |
-    "eq"  |
-    "!="  |
-    "neq" |
-    ">="  |
-    "<="  |
-    "<"   |
-    ">"   |
-    "any" |
-    "all"
-
-val = val | listofval
-
-val         = string | int | bool
-listofval   = "[" (val ",")* "]"
-
-operator =
-    "or"      |
-    "or_not"  |
-    "and"     |
-    "and_not" |
-    "xor"
-
-function =
-    "length" |
-    "keys"   |
-    "values"
-```
-
-A "string" quoted with double-quotes.
-A "val" does not yet support floats.