Added any_c and all_c operators

pkg/yqlib/doc/Boolean Operators.md

@@ -4,8 +4,11 @@ The `or` and `and` operators take two parameters and return a boolean result.
 
 `any` will return `true` if there are any `true` values in a array sequence, and `all` will return true if _all_ elements in an array are true.
 
+`any_c(condition)` and `all_c(condition)` are like `any` and `all` but they take a condition expression that is used against each element to determine if it's `true`. Note: in `jq` you can simply pass a condition to `any` or `all` and it simply works - `yq` isn't that clever..yet
+
 These are most commonly used with the `select` operator to filter particular nodes.
-## OR example
+
+## `or` example
 Running
 ```bash
 yq eval --null-input 'true or false'
@@ -15,7 +18,7 @@ will output
 true
 ```
 
-## AND example
+## `and` example
 Running
 ```bash
 yq eval --null-input 'true and false'
@@ -47,7 +50,7 @@ will output
   b: fly
 ```
 
-## ANY returns true if any boolean in a given array is true
+## `any` returns true if any boolean in a given array is true
 Given a sample.yml file of:
 ```yaml
 - false
@@ -62,22 +65,7 @@ will output
 true
 ```
 
-## ANY returns true if any boolean in a given array is true
+## `any` returns false for an empty array
-Given a sample.yml file of:
-```yaml
-- false
-- true
-```
-then
-```bash
-yq eval 'any' sample.yml
-```
-will output
-```yaml
-true
-```
-
-## ANY returns false for an empty array
 Given a sample.yml file of:
 ```yaml
 []
@@ -91,7 +79,27 @@ will output
 false
 ```
 
-## ALL returns true if all booleans in a given array are true
+## `any_c` returns true if any element in the array is true for the given condition.
+Given a sample.yml file of:
+```yaml
+a:
+  - rad
+  - awesome
+b:
+  - meh
+  - whatever
+```
+then
+```bash
+yq eval '.[] |= any_c(. == "awesome")' sample.yml
+```
+will output
+```yaml
+a: true
+b: false
+```
+
+## `all` returns true if all booleans in a given array are true
 Given a sample.yml file of:
 ```yaml
 - true
@@ -106,7 +114,7 @@ will output
 true
 ```
 
-## ANY returns true for an empty array
+## `all` returns true for an empty array
 Given a sample.yml file of:
 ```yaml
 []
@@ -120,6 +128,26 @@ will output
 true
 ```
 
+## `all_c` returns true if all elements in the array are true for the given condition.
+Given a sample.yml file of:
+```yaml
+a:
+  - rad
+  - awesome
+b:
+  - meh
+  - 12
+```
+then
+```bash
+yq eval '.[] |= all_c(tag == "!!str")' sample.yml
+```
+will output
+```yaml
+a: true
+b: false
+```
+
 ## Not true is false
 Running
 ```bash

pkg/yqlib/doc/headers/Boolean Operators.md

@@ -4,4 +4,6 @@ The `or` and `and` operators take two parameters and return a boolean result.
 
 `any` will return `true` if there are any `true` values in a array sequence, and `all` will return true if _all_ elements in an array are true.
 
+`any_c(condition)` and `all_c(condition)` are like `any` and `all` but they take a condition expression that is used against each element to determine if it's `true`. Note: in `jq` you can simply pass a condition to `any` or `all` and it simply works - `yq` isn't that clever..yet
+
 These are most commonly used with the `select` operator to filter particular nodes.

pkg/yqlib/expression_tokeniser.go

@@ -277,7 +277,9 @@ func initLexer() (*lex.Lexer, error) {
 	lexer.Add([]byte(`sub`), opToken(subStringOpType))
 
 	lexer.Add([]byte(`any`), opToken(anyOpType))
+	lexer.Add([]byte(`any_c`), opToken(anyConditionOpType))
 	lexer.Add([]byte(`all`), opToken(allOpType))
+	lexer.Add([]byte(`all_c`), opToken(allConditionOpType))
 
 	lexer.Add([]byte(`split`), opToken(splitStringOpType))
 	lexer.Add([]byte(`keys`), opToken(keysOpType))

pkg/yqlib/lib.go

@@ -63,6 +63,8 @@ var collectOpType = &operationType{Type: "COLLECT", NumArgs: 0, Precedence: 50,
 
 var anyOpType = &operationType{Type: "ANY", NumArgs: 0, Precedence: 50, Handler: anyOperator}
 var allOpType = &operationType{Type: "ALL", NumArgs: 0, Precedence: 50, Handler: allOperator}
+var anyConditionOpType = &operationType{Type: "ANY_CONDITION", NumArgs: 1, Precedence: 50, Handler: anyOperator}
+var allConditionOpType = &operationType{Type: "ALL_CONDITION", NumArgs: 1, Precedence: 50, Handler: allOperator}
 
 var toEntriesOpType = &operationType{Type: "TO_ENTRIES", NumArgs: 0, Precedence: 50, Handler: toEntriesOperator}
 var fromEntriesOpType = &operationType{Type: "FROM_ENTRIES", NumArgs: 0, Precedence: 50, Handler: fromEntriesOperator}

pkg/yqlib/operator_booleans.go

@@ -3,10 +3,11 @@ package yqlib
 import (
 	"container/list"
 	"fmt"
+
 	yaml "gopkg.in/yaml.v3"
 )
 
-func isTruthyNode(node * yaml.Node) (bool, error) {
+func isTruthyNode(node *yaml.Node) (bool, error) {
 	value := true
 	if node.Tag == "!!null" {
 		return false, nil
@@ -64,9 +65,24 @@ func performBoolOp(op boolOp) func(d *dataTreeNavigator, context Context, lhs *C
 	}
 }
 
-func findBoolean(wantBool bool, sequenceNode * yaml.Node) (bool, error) {
+func findBoolean(wantBool bool, d *dataTreeNavigator, context Context, expressionNode *ExpressionNode, sequenceNode *yaml.Node) (bool, error) {
 	for _, node := range sequenceNode.Content {
 
+		if expressionNode != nil {
+			//need to evaluate the expression against the node
+			candidate := &CandidateNode{Node: node}
+			rhs, err := d.GetMatchingNodes(context.SingleChildContext(candidate), expressionNode)
+			if err != nil {
+				return false, err
+			}
+			if rhs.MatchingNodes.Len() > 0 {
+				node = rhs.MatchingNodes.Front().Value.(*CandidateNode).Node
+			} else {
+				// no results found, ignore this entry
+				continue
+			}
+		}
+
 		truthy, err := isTruthyNode(node)
 		if err != nil {
 			return false, err
@@ -87,7 +103,7 @@ func allOperator(d *dataTreeNavigator, context Context, expressionNode *Expressi
 		if candidateNode.Kind != yaml.SequenceNode {
 			return Context{}, fmt.Errorf("any only supports arrays, was %v", candidateNode.Tag)
 		}
-		booleanResult, err := findBoolean(false, candidateNode)
+		booleanResult, err := findBoolean(false, d, context, expressionNode.Rhs, candidateNode)
 		if err != nil {
 			return Context{}, err
 		}
@@ -106,7 +122,7 @@ func anyOperator(d *dataTreeNavigator, context Context, expressionNode *Expressi
 		if candidateNode.Kind != yaml.SequenceNode {
 			return Context{}, fmt.Errorf("any only supports arrays, was %v", candidateNode.Tag)
 		}
-		booleanResult, err := findBoolean(true, candidateNode)
+		booleanResult, err := findBoolean(true, d, context, expressionNode.Rhs, candidateNode)
 		if err != nil {
 			return Context{}, err
 		}

pkg/yqlib/operator_booleans_test.go

@@ -6,7 +6,7 @@ import (
 
 var booleanOperatorScenarios = []expressionScenario{
 	{
-		description: "OR example",
+		description: "`or` example",
 		expression:  `true or false`,
 		expected: []string{
 			"D0, P[], (!!bool)::true\n",
@@ -29,7 +29,7 @@ var booleanOperatorScenarios = []expressionScenario{
 		},
 	},
 	{
-		description: "AND example",
+		description: "`and` example",
 		expression:  `true and false`,
 		expected: []string{
 			"D0, P[], (!!bool)::false\n",
@@ -44,7 +44,7 @@ var booleanOperatorScenarios = []expressionScenario{
 		},
 	},
 	{
-		description: "ANY returns true if any boolean in a given array is true",
+		description: "`any` returns true if any boolean in a given array is true",
 		document:    `[false, true]`,
 		expression:  "any",
 		expected: []string{
@@ -52,21 +52,21 @@ var booleanOperatorScenarios = []expressionScenario{
 		},
 	},
 	{
-		description: "ANY returns true if any boolean in a given array is true",
+		description: "`any` returns false for an empty array",
-		document: `[false, true]`,
-		expression: "any",
-		expected: []string{
-			"D0, P[], (!!bool)::true\n",
-		},
-	},
-	{
-		description: "ANY returns false for an empty array",
 		document:    `[]`,
 		expression:  "any",
 		expected: []string{
 			"D0, P[], (!!bool)::false\n",
 		},
 	},
+	{
+		description: "`any_c` returns true if any element in the array is true for the given condition.",
+		document:    "a: [rad, awesome]\nb: [meh, whatever]",
+		expression:  `.[] |= any_c(. == "awesome")`,
+		expected: []string{
+			"D0, P[], (doc)::a: true\nb: false\n",
+		},
+	},
 	{
 		skipDoc:    true,
 		document:   `[false, false]`,
@@ -76,7 +76,7 @@ var booleanOperatorScenarios = []expressionScenario{
 		},
 	},
 	{
-		description: "ALL returns true if all booleans in a given array are true",
+		description: "`all` returns true if all booleans in a given array are true",
 		document:    `[true, true]`,
 		expression:  "all",
 		expected: []string{
@@ -92,13 +92,21 @@ var booleanOperatorScenarios = []expressionScenario{
 		},
 	},
 	{
-		description: "ANY returns true for an empty array",
+		description: "`all` returns true for an empty array",
 		document:    `[]`,
 		expression:  "all",
 		expected: []string{
 			"D0, P[], (!!bool)::true\n",
 		},
 	},
+	{
+		description: "`all_c` returns true if all elements in the array are true for the given condition.",
+		document:    "a: [rad, awesome]\nb: [meh, 12]",
+		expression:  `.[] |= all_c(tag == "!!str")`,
+		expected: []string{
+			"D0, P[], (doc)::a: true\nb: false\n",
+		},
+	},
 	{
 		skipDoc:    true,
 		expression: `false or false`,

pkg/yqlib/operator_entries_test.go

@@ -25,8 +25,7 @@ var entriesOperatorScenarios = []expressionScenario{
 		description: "to_entries null",
 		document:    `null`,
 		expression:  `to_entries`,
-		expected: []string{
+		expected:    []string{},
-		},
 	},
 	{
 		description: "from_entries map",

pkg/yqlib/operator_unique.go

@@ -1,10 +1,11 @@
 package yqlib
 
 import (
-	"github.com/elliotchance/orderedmap"
 	"container/list"
-	yaml "gopkg.in/yaml.v3"
 	"fmt"
+
+	"github.com/elliotchance/orderedmap"
+	yaml "gopkg.in/yaml.v3"
 )
 
 func unique(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
@@ -19,7 +20,6 @@ func uniqueBy(d *dataTreeNavigator, context Context, expressionNode *ExpressionN
 	log.Debugf("-- uniqueBy Operator")
 	var results = list.New()
 
-
 	for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
 		candidate := el.Value.(*CandidateNode)
 		candidateNode := unwrapDoc(candidate.Node)

pkg/yqlib/operator_unique_by_test.go

@@ -39,7 +39,6 @@ var uniqueOperatorScenarios = []expressionScenario{
 			"D0, P[], (!!seq)::- {name: harry, pet: cat}\n- {name: billy, pet: dog}\n",
 		},
 	},
-	
 }
 
 func TestUniqueOperatorScenarios(t *testing.T) {