mirror of
https://github.com/mikefarah/yq.git
synced 2024-11-13 22:38:04 +00:00
62d167c141
* Variable loop wip * Variable loop wip * Variable loop wip * Variable loop wip * Fixed variable operator to work like jq
506 lines
20 KiB
Go
506 lines
20 KiB
Go
// Use the top level Evaluator or StreamEvaluator to evaluate expressions and return matches.
|
|
package yqlib
|
|
|
|
import (
|
|
"bytes"
|
|
"container/list"
|
|
"fmt"
|
|
"math"
|
|
"strconv"
|
|
"strings"
|
|
|
|
logging "gopkg.in/op/go-logging.v1"
|
|
yaml "gopkg.in/yaml.v3"
|
|
)
|
|
|
|
var ExpressionParser ExpressionParserInterface
|
|
|
|
func InitExpressionParser() {
|
|
if ExpressionParser == nil {
|
|
ExpressionParser = newExpressionParser()
|
|
}
|
|
}
|
|
|
|
var log = logging.MustGetLogger("yq-lib")
|
|
|
|
var PrettyPrintExp = `(... | (select(tag != "!!str"), select(tag == "!!str") | select(test("(?i)^(y|yes|n|no|on|off)$") | not)) ) style=""`
|
|
|
|
// GetLogger returns the yq logger instance.
|
|
func GetLogger() *logging.Logger {
|
|
return log
|
|
}
|
|
|
|
type operationType struct {
|
|
Type string
|
|
NumArgs uint // number of arguments to the op
|
|
Precedence uint
|
|
Handler operatorHandler
|
|
}
|
|
|
|
var orOpType = &operationType{Type: "OR", NumArgs: 2, Precedence: 20, Handler: orOperator}
|
|
var andOpType = &operationType{Type: "AND", NumArgs: 2, Precedence: 20, Handler: andOperator}
|
|
var reduceOpType = &operationType{Type: "REDUCE", NumArgs: 2, Precedence: 35, Handler: reduceOperator}
|
|
|
|
var blockOpType = &operationType{Type: "BLOCK", Precedence: 10, NumArgs: 2, Handler: emptyOperator}
|
|
|
|
var unionOpType = &operationType{Type: "UNION", NumArgs: 2, Precedence: 10, Handler: unionOperator}
|
|
|
|
var pipeOpType = &operationType{Type: "PIPE", NumArgs: 2, Precedence: 30, Handler: pipeOperator}
|
|
|
|
var assignOpType = &operationType{Type: "ASSIGN", NumArgs: 2, Precedence: 40, Handler: assignUpdateOperator}
|
|
var addAssignOpType = &operationType{Type: "ADD_ASSIGN", NumArgs: 2, Precedence: 40, Handler: addAssignOperator}
|
|
var subtractAssignOpType = &operationType{Type: "SUBTRACT_ASSIGN", NumArgs: 2, Precedence: 40, Handler: subtractAssignOperator}
|
|
|
|
var assignAttributesOpType = &operationType{Type: "ASSIGN_ATTRIBUTES", NumArgs: 2, Precedence: 40, Handler: assignAttributesOperator}
|
|
var assignStyleOpType = &operationType{Type: "ASSIGN_STYLE", NumArgs: 2, Precedence: 40, Handler: assignStyleOperator}
|
|
var assignVariableOpType = &operationType{Type: "ASSIGN_VARIABLE", NumArgs: 2, Precedence: 40, Handler: useWithPipe}
|
|
var assignTagOpType = &operationType{Type: "ASSIGN_TAG", NumArgs: 2, Precedence: 40, Handler: assignTagOperator}
|
|
var assignCommentOpType = &operationType{Type: "ASSIGN_COMMENT", NumArgs: 2, Precedence: 40, Handler: assignCommentsOperator}
|
|
var assignAnchorOpType = &operationType{Type: "ASSIGN_ANCHOR", NumArgs: 2, Precedence: 40, Handler: assignAnchorOperator}
|
|
var assignAliasOpType = &operationType{Type: "ASSIGN_ALIAS", NumArgs: 2, Precedence: 40, Handler: assignAliasOperator}
|
|
|
|
var multiplyOpType = &operationType{Type: "MULTIPLY", NumArgs: 2, Precedence: 42, Handler: multiplyOperator}
|
|
var multiplyAssignOpType = &operationType{Type: "MULTIPLY_ASSIGN", NumArgs: 2, Precedence: 42, Handler: multiplyAssignOperator}
|
|
|
|
var addOpType = &operationType{Type: "ADD", NumArgs: 2, Precedence: 42, Handler: addOperator}
|
|
var subtractOpType = &operationType{Type: "SUBTRACT", NumArgs: 2, Precedence: 42, Handler: subtractOperator}
|
|
var alternativeOpType = &operationType{Type: "ALTERNATIVE", NumArgs: 2, Precedence: 42, Handler: alternativeOperator}
|
|
|
|
var equalsOpType = &operationType{Type: "EQUALS", NumArgs: 2, Precedence: 40, Handler: equalsOperator}
|
|
var notEqualsOpType = &operationType{Type: "NOT_EQUALS", NumArgs: 2, Precedence: 40, Handler: notEqualsOperator}
|
|
|
|
var compareOpType = &operationType{Type: "COMPARE", NumArgs: 2, Precedence: 40, Handler: compareOperator}
|
|
|
|
// createmap needs to be above union, as we use union to build the components of the objects
|
|
var createMapOpType = &operationType{Type: "CREATE_MAP", NumArgs: 2, Precedence: 15, Handler: createMapOperator}
|
|
|
|
var shortPipeOpType = &operationType{Type: "SHORT_PIPE", NumArgs: 2, Precedence: 45, Handler: pipeOperator}
|
|
|
|
var lengthOpType = &operationType{Type: "LENGTH", NumArgs: 0, Precedence: 50, Handler: lengthOperator}
|
|
var lineOpType = &operationType{Type: "LINE", NumArgs: 0, Precedence: 50, Handler: lineOperator}
|
|
var columnOpType = &operationType{Type: "LINE", NumArgs: 0, Precedence: 50, Handler: columnOperator}
|
|
|
|
var expressionOpType = &operationType{Type: "EXP", NumArgs: 0, Precedence: 50, Handler: expressionOperator}
|
|
|
|
var collectOpType = &operationType{Type: "COLLECT", NumArgs: 1, Precedence: 50, Handler: collectOperator}
|
|
var mapOpType = &operationType{Type: "MAP", NumArgs: 1, Precedence: 50, Handler: mapOperator}
|
|
var errorOpType = &operationType{Type: "ERROR", NumArgs: 1, Precedence: 50, Handler: errorOperator}
|
|
var pickOpType = &operationType{Type: "PICK", NumArgs: 1, Precedence: 50, Handler: pickOperator}
|
|
var evalOpType = &operationType{Type: "EVAL", NumArgs: 1, Precedence: 50, Handler: evalOperator}
|
|
var mapValuesOpType = &operationType{Type: "MAP_VALUES", NumArgs: 1, Precedence: 50, Handler: mapValuesOperator}
|
|
|
|
var formatDateTimeOpType = &operationType{Type: "FORMAT_DATE_TIME", NumArgs: 1, Precedence: 50, Handler: formatDateTime}
|
|
var withDtFormatOpType = &operationType{Type: "WITH_DATE_TIME_FORMAT", NumArgs: 1, Precedence: 50, Handler: withDateTimeFormat}
|
|
var nowOpType = &operationType{Type: "NOW", NumArgs: 0, Precedence: 50, Handler: nowOp}
|
|
var tzOpType = &operationType{Type: "TIMEZONE", NumArgs: 1, Precedence: 50, Handler: tzOp}
|
|
var fromUnixOpType = &operationType{Type: "FROM_UNIX", NumArgs: 0, Precedence: 50, Handler: fromUnixOp}
|
|
var toUnixOpType = &operationType{Type: "TO_UNIX", NumArgs: 0, Precedence: 50, Handler: toUnixOp}
|
|
|
|
var encodeOpType = &operationType{Type: "ENCODE", NumArgs: 0, Precedence: 50, Handler: encodeOperator}
|
|
var decodeOpType = &operationType{Type: "DECODE", NumArgs: 0, Precedence: 50, Handler: decodeOperator}
|
|
|
|
var anyOpType = &operationType{Type: "ANY", NumArgs: 0, Precedence: 50, Handler: anyOperator}
|
|
var allOpType = &operationType{Type: "ALL", NumArgs: 0, Precedence: 50, Handler: allOperator}
|
|
var containsOpType = &operationType{Type: "CONTAINS", NumArgs: 1, Precedence: 50, Handler: containsOperator}
|
|
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}
|
|
var withEntriesOpType = &operationType{Type: "WITH_ENTRIES", NumArgs: 1, Precedence: 50, Handler: withEntriesOperator}
|
|
|
|
var withOpType = &operationType{Type: "WITH", NumArgs: 1, Precedence: 50, Handler: withOperator}
|
|
|
|
var splitDocumentOpType = &operationType{Type: "SPLIT_DOC", NumArgs: 0, Precedence: 50, Handler: splitDocumentOperator}
|
|
var getVariableOpType = &operationType{Type: "GET_VARIABLE", NumArgs: 0, Precedence: 55, Handler: getVariableOperator}
|
|
var getStyleOpType = &operationType{Type: "GET_STYLE", NumArgs: 0, Precedence: 50, Handler: getStyleOperator}
|
|
var getTagOpType = &operationType{Type: "GET_TAG", NumArgs: 0, Precedence: 50, Handler: getTagOperator}
|
|
|
|
var getKeyOpType = &operationType{Type: "GET_KEY", NumArgs: 0, Precedence: 50, Handler: getKeyOperator}
|
|
var isKeyOpType = &operationType{Type: "IS_KEY", NumArgs: 0, Precedence: 50, Handler: isKeyOperator}
|
|
var getParentOpType = &operationType{Type: "GET_PARENT", NumArgs: 0, Precedence: 50, Handler: getParentOperator}
|
|
|
|
var getCommentOpType = &operationType{Type: "GET_COMMENT", NumArgs: 0, Precedence: 50, Handler: getCommentsOperator}
|
|
var getAnchorOpType = &operationType{Type: "GET_ANCHOR", NumArgs: 0, Precedence: 50, Handler: getAnchorOperator}
|
|
var getAliasOpType = &operationType{Type: "GET_ALIAS", NumArgs: 0, Precedence: 50, Handler: getAliasOperator}
|
|
var getDocumentIndexOpType = &operationType{Type: "GET_DOCUMENT_INDEX", NumArgs: 0, Precedence: 50, Handler: getDocumentIndexOperator}
|
|
var getFilenameOpType = &operationType{Type: "GET_FILENAME", NumArgs: 0, Precedence: 50, Handler: getFilenameOperator}
|
|
var getFileIndexOpType = &operationType{Type: "GET_FILE_INDEX", NumArgs: 0, Precedence: 50, Handler: getFileIndexOperator}
|
|
|
|
var getPathOpType = &operationType{Type: "GET_PATH", NumArgs: 0, Precedence: 50, Handler: getPathOperator}
|
|
var setPathOpType = &operationType{Type: "SET_PATH", NumArgs: 1, Precedence: 50, Handler: setPathOperator}
|
|
var delPathsOpType = &operationType{Type: "DEL_PATHS", NumArgs: 1, Precedence: 50, Handler: delPathsOperator}
|
|
|
|
var explodeOpType = &operationType{Type: "EXPLODE", NumArgs: 1, Precedence: 50, Handler: explodeOperator}
|
|
var sortByOpType = &operationType{Type: "SORT_BY", NumArgs: 1, Precedence: 50, Handler: sortByOperator}
|
|
var reverseOpType = &operationType{Type: "REVERSE", NumArgs: 0, Precedence: 50, Handler: reverseOperator}
|
|
var sortOpType = &operationType{Type: "SORT", NumArgs: 0, Precedence: 50, Handler: sortOperator}
|
|
var shuffleOpType = &operationType{Type: "SHUFFLE", NumArgs: 0, Precedence: 50, Handler: shuffleOperator}
|
|
|
|
var sortKeysOpType = &operationType{Type: "SORT_KEYS", NumArgs: 1, Precedence: 50, Handler: sortKeysOperator}
|
|
|
|
var joinStringOpType = &operationType{Type: "JOIN", NumArgs: 1, Precedence: 50, Handler: joinStringOperator}
|
|
var subStringOpType = &operationType{Type: "SUBSTR", NumArgs: 1, Precedence: 50, Handler: substituteStringOperator}
|
|
var matchOpType = &operationType{Type: "MATCH", NumArgs: 1, Precedence: 50, Handler: matchOperator}
|
|
var captureOpType = &operationType{Type: "CAPTURE", NumArgs: 1, Precedence: 50, Handler: captureOperator}
|
|
var testOpType = &operationType{Type: "TEST", NumArgs: 1, Precedence: 50, Handler: testOperator}
|
|
var splitStringOpType = &operationType{Type: "SPLIT", NumArgs: 1, Precedence: 50, Handler: splitStringOperator}
|
|
var changeCaseOpType = &operationType{Type: "CHANGE_CASE", NumArgs: 0, Precedence: 50, Handler: changeCaseOperator}
|
|
var trimOpType = &operationType{Type: "TRIM", NumArgs: 0, Precedence: 50, Handler: trimSpaceOperator}
|
|
|
|
var loadOpType = &operationType{Type: "LOAD", NumArgs: 1, Precedence: 50, Handler: loadYamlOperator}
|
|
|
|
var keysOpType = &operationType{Type: "KEYS", NumArgs: 0, Precedence: 50, Handler: keysOperator}
|
|
|
|
var collectObjectOpType = &operationType{Type: "COLLECT_OBJECT", NumArgs: 0, Precedence: 50, Handler: collectObjectOperator}
|
|
var traversePathOpType = &operationType{Type: "TRAVERSE_PATH", NumArgs: 0, Precedence: 55, Handler: traversePathOperator}
|
|
var traverseArrayOpType = &operationType{Type: "TRAVERSE_ARRAY", NumArgs: 2, Precedence: 50, Handler: traverseArrayOperator}
|
|
|
|
var selfReferenceOpType = &operationType{Type: "SELF", NumArgs: 0, Precedence: 55, Handler: selfOperator}
|
|
var valueOpType = &operationType{Type: "VALUE", NumArgs: 0, Precedence: 50, Handler: valueOperator}
|
|
var referenceOpType = &operationType{Type: "REF", NumArgs: 0, Precedence: 50, Handler: referenceOperator}
|
|
var envOpType = &operationType{Type: "ENV", NumArgs: 0, Precedence: 50, Handler: envOperator}
|
|
var notOpType = &operationType{Type: "NOT", NumArgs: 0, Precedence: 50, Handler: notOperator}
|
|
var emptyOpType = &operationType{Type: "EMPTY", Precedence: 50, Handler: emptyOperator}
|
|
|
|
var envsubstOpType = &operationType{Type: "ENVSUBST", NumArgs: 0, Precedence: 50, Handler: envsubstOperator}
|
|
|
|
var recursiveDescentOpType = &operationType{Type: "RECURSIVE_DESCENT", NumArgs: 0, Precedence: 50, Handler: recursiveDescentOperator}
|
|
|
|
var selectOpType = &operationType{Type: "SELECT", NumArgs: 1, Precedence: 50, Handler: selectOperator}
|
|
var hasOpType = &operationType{Type: "HAS", NumArgs: 1, Precedence: 50, Handler: hasOperator}
|
|
var uniqueOpType = &operationType{Type: "UNIQUE", NumArgs: 0, Precedence: 50, Handler: unique}
|
|
var uniqueByOpType = &operationType{Type: "UNIQUE_BY", NumArgs: 1, Precedence: 50, Handler: uniqueBy}
|
|
var groupByOpType = &operationType{Type: "GROUP_BY", NumArgs: 1, Precedence: 50, Handler: groupBy}
|
|
var flattenOpType = &operationType{Type: "FLATTEN_BY", NumArgs: 0, Precedence: 50, Handler: flattenOp}
|
|
var deleteChildOpType = &operationType{Type: "DELETE", NumArgs: 1, Precedence: 40, Handler: deleteChildOperator}
|
|
|
|
type Operation struct {
|
|
OperationType *operationType
|
|
Value interface{}
|
|
StringValue string
|
|
CandidateNode *CandidateNode // used for Value Path elements
|
|
Preferences interface{}
|
|
UpdateAssign bool // used for assign ops, when true it means we evaluate the rhs given the lhs
|
|
}
|
|
|
|
func recurseNodeArrayEqual(lhs *yaml.Node, rhs *yaml.Node) bool {
|
|
if len(lhs.Content) != len(rhs.Content) {
|
|
return false
|
|
}
|
|
|
|
for index := 0; index < len(lhs.Content); index = index + 1 {
|
|
if !recursiveNodeEqual(lhs.Content[index], rhs.Content[index]) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func findInArray(array *yaml.Node, item *yaml.Node) int {
|
|
|
|
for index := 0; index < len(array.Content); index = index + 1 {
|
|
if recursiveNodeEqual(array.Content[index], item) {
|
|
return index
|
|
}
|
|
}
|
|
return -1
|
|
}
|
|
|
|
func findKeyInMap(dataMap *yaml.Node, item *yaml.Node) int {
|
|
|
|
for index := 0; index < len(dataMap.Content); index = index + 2 {
|
|
if recursiveNodeEqual(dataMap.Content[index], item) {
|
|
return index
|
|
}
|
|
}
|
|
return -1
|
|
}
|
|
|
|
func recurseNodeObjectEqual(lhs *yaml.Node, rhs *yaml.Node) bool {
|
|
if len(lhs.Content) != len(rhs.Content) {
|
|
return false
|
|
}
|
|
|
|
for index := 0; index < len(lhs.Content); index = index + 2 {
|
|
key := lhs.Content[index]
|
|
value := lhs.Content[index+1]
|
|
|
|
indexInRHS := findInArray(rhs, key)
|
|
|
|
if indexInRHS == -1 || !recursiveNodeEqual(value, rhs.Content[indexInRHS+1]) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func guessTagFromCustomType(node *yaml.Node) string {
|
|
if strings.HasPrefix(node.Tag, "!!") {
|
|
return node.Tag
|
|
} else if node.Value == "" {
|
|
log.Debug("guessTagFromCustomType: node has no value to guess the type with")
|
|
return node.Tag
|
|
}
|
|
dataBucket, errorReading := parseSnippet(node.Value)
|
|
|
|
if errorReading != nil {
|
|
log.Debug("guessTagFromCustomType: could not guess underlying tag type %v", errorReading)
|
|
return node.Tag
|
|
}
|
|
guessedTag := unwrapDoc(dataBucket).Tag
|
|
log.Info("im guessing the tag %v is a %v", node.Tag, guessedTag)
|
|
return guessedTag
|
|
}
|
|
|
|
func parseSnippet(value string) (*yaml.Node, error) {
|
|
if value == "" {
|
|
return &yaml.Node{
|
|
Kind: yaml.ScalarNode,
|
|
Tag: "!!null",
|
|
}, nil
|
|
}
|
|
decoder := NewYamlDecoder(ConfiguredYamlPreferences)
|
|
err := decoder.Init(strings.NewReader(value))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
parsedNode, err := decoder.Decode()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if len(parsedNode.Node.Content) == 0 {
|
|
return nil, fmt.Errorf("bad data")
|
|
}
|
|
result := unwrapDoc(parsedNode.Node)
|
|
result.Line = 0
|
|
result.Column = 0
|
|
return result, err
|
|
}
|
|
|
|
func recursiveNodeEqual(lhs *yaml.Node, rhs *yaml.Node) bool {
|
|
if lhs.Kind != rhs.Kind {
|
|
return false
|
|
}
|
|
|
|
if lhs.Kind == yaml.ScalarNode {
|
|
//process custom tags of scalar nodes.
|
|
//dont worry about matching tags of maps or arrays.
|
|
|
|
lhsTag := guessTagFromCustomType(lhs)
|
|
rhsTag := guessTagFromCustomType(rhs)
|
|
|
|
if lhsTag != rhsTag {
|
|
return false
|
|
}
|
|
}
|
|
|
|
if lhs.Tag == "!!null" {
|
|
return true
|
|
|
|
} else if lhs.Kind == yaml.ScalarNode {
|
|
return lhs.Value == rhs.Value
|
|
} else if lhs.Kind == yaml.SequenceNode {
|
|
return recurseNodeArrayEqual(lhs, rhs)
|
|
} else if lhs.Kind == yaml.MappingNode {
|
|
return recurseNodeObjectEqual(lhs, rhs)
|
|
}
|
|
return false
|
|
}
|
|
|
|
func deepCloneContent(content []*yaml.Node) []*yaml.Node {
|
|
clonedContent := make([]*yaml.Node, len(content))
|
|
for i, child := range content {
|
|
clonedContent[i] = deepClone(child)
|
|
}
|
|
return clonedContent
|
|
}
|
|
|
|
func deepCloneNoContent(node *yaml.Node) *yaml.Node {
|
|
return deepCloneWithOptions(node, false)
|
|
}
|
|
func deepClone(node *yaml.Node) *yaml.Node {
|
|
return deepCloneWithOptions(node, true)
|
|
}
|
|
|
|
func deepCloneWithOptions(node *yaml.Node, cloneContent bool) *yaml.Node {
|
|
if node == nil {
|
|
return nil
|
|
}
|
|
var clonedContent []*yaml.Node
|
|
if cloneContent {
|
|
clonedContent = deepCloneContent(node.Content)
|
|
}
|
|
return &yaml.Node{
|
|
Content: clonedContent,
|
|
Kind: node.Kind,
|
|
Style: node.Style,
|
|
Tag: node.Tag,
|
|
Value: node.Value,
|
|
Anchor: node.Anchor,
|
|
Alias: deepClone(node.Alias),
|
|
HeadComment: node.HeadComment,
|
|
LineComment: node.LineComment,
|
|
FootComment: node.FootComment,
|
|
Line: node.Line,
|
|
Column: node.Column,
|
|
}
|
|
}
|
|
|
|
// yaml numbers can be hex encoded...
|
|
func parseInt64(numberString string) (string, int64, error) {
|
|
if strings.HasPrefix(numberString, "0x") ||
|
|
strings.HasPrefix(numberString, "0X") {
|
|
num, err := strconv.ParseInt(numberString[2:], 16, 64)
|
|
return "0x%X", num, err
|
|
}
|
|
num, err := strconv.ParseInt(numberString, 10, 64)
|
|
return "%v", num, err
|
|
}
|
|
|
|
func parseInt(numberString string) (int, error) {
|
|
var err error
|
|
var parsed int64
|
|
if strings.HasPrefix(numberString, "0x") ||
|
|
strings.HasPrefix(numberString, "0X") {
|
|
parsed, err = strconv.ParseInt(numberString[2:], 16, 64)
|
|
} else {
|
|
parsed, err = strconv.ParseInt(numberString, 10, 64)
|
|
}
|
|
|
|
if err != nil {
|
|
return 0, err
|
|
} else if parsed > math.MaxInt || parsed < math.MinInt {
|
|
return 0, fmt.Errorf("%v is not within [%v, %v]", parsed, math.MinInt, math.MaxInt)
|
|
}
|
|
|
|
return int(parsed), err
|
|
}
|
|
|
|
func createStringScalarNode(stringValue string) *yaml.Node {
|
|
var node = &yaml.Node{Kind: yaml.ScalarNode}
|
|
node.Value = stringValue
|
|
node.Tag = "!!str"
|
|
return node
|
|
}
|
|
|
|
func createScalarNode(value interface{}, stringValue string) *yaml.Node {
|
|
var node = &yaml.Node{Kind: yaml.ScalarNode}
|
|
node.Value = stringValue
|
|
|
|
switch value.(type) {
|
|
case float32, float64:
|
|
node.Tag = "!!float"
|
|
case int, int64, int32:
|
|
node.Tag = "!!int"
|
|
case bool:
|
|
node.Tag = "!!bool"
|
|
case string:
|
|
node.Tag = "!!str"
|
|
case nil:
|
|
node.Tag = "!!null"
|
|
}
|
|
return node
|
|
}
|
|
|
|
func headAndLineComment(node *yaml.Node) string {
|
|
return headComment(node) + lineComment(node)
|
|
}
|
|
|
|
func headComment(node *yaml.Node) string {
|
|
return strings.Replace(node.HeadComment, "#", "", 1)
|
|
}
|
|
|
|
func lineComment(node *yaml.Node) string {
|
|
return strings.Replace(node.LineComment, "#", "", 1)
|
|
}
|
|
|
|
func footComment(node *yaml.Node) string {
|
|
return strings.Replace(node.FootComment, "#", "", 1)
|
|
}
|
|
|
|
func createValueOperation(value interface{}, stringValue string) *Operation {
|
|
log.Debug("creating value op for string %v", stringValue)
|
|
var node = createScalarNode(value, stringValue)
|
|
|
|
return &Operation{
|
|
OperationType: valueOpType,
|
|
Value: value,
|
|
StringValue: stringValue,
|
|
CandidateNode: &CandidateNode{Node: node},
|
|
}
|
|
}
|
|
|
|
// debugging purposes only
|
|
func (p *Operation) toString() string {
|
|
if p == nil {
|
|
return "OP IS NIL"
|
|
}
|
|
if p.OperationType == traversePathOpType {
|
|
return fmt.Sprintf("%v", p.Value)
|
|
} else if p.OperationType == selfReferenceOpType {
|
|
return "SELF"
|
|
} else if p.OperationType == valueOpType {
|
|
return fmt.Sprintf("%v (%T)", p.Value, p.Value)
|
|
} else {
|
|
return fmt.Sprintf("%v", p.OperationType.Type)
|
|
}
|
|
}
|
|
|
|
// use for debugging only
|
|
func NodesToString(collection *list.List) string {
|
|
if !log.IsEnabledFor(logging.DEBUG) {
|
|
return ""
|
|
}
|
|
|
|
result := fmt.Sprintf("%v results\n", collection.Len())
|
|
for el := collection.Front(); el != nil; el = el.Next() {
|
|
result = result + "\n" + NodeToString(el.Value.(*CandidateNode))
|
|
}
|
|
return result
|
|
}
|
|
|
|
func NodeToString(node *CandidateNode) string {
|
|
if !log.IsEnabledFor(logging.DEBUG) {
|
|
return ""
|
|
}
|
|
value := node.Node
|
|
if value == nil {
|
|
return "-- nil --"
|
|
}
|
|
buf := new(bytes.Buffer)
|
|
encoder := yaml.NewEncoder(buf)
|
|
errorEncoding := encoder.Encode(value)
|
|
if errorEncoding != nil {
|
|
log.Error("Error debugging node, %v", errorEncoding.Error())
|
|
}
|
|
errorClosingEncoder := encoder.Close()
|
|
if errorClosingEncoder != nil {
|
|
log.Error("Error closing encoder: ", errorClosingEncoder.Error())
|
|
}
|
|
tag := value.Tag
|
|
if value.Kind == yaml.DocumentNode {
|
|
tag = "doc"
|
|
} else if value.Kind == yaml.AliasNode {
|
|
tag = "alias"
|
|
}
|
|
return fmt.Sprintf(`D%v, P%v, (%v)::%v`, node.Document, node.Path, tag, buf.String())
|
|
}
|
|
|
|
func KindString(kind yaml.Kind) string {
|
|
switch kind {
|
|
case yaml.ScalarNode:
|
|
return "ScalarNode"
|
|
case yaml.SequenceNode:
|
|
return "SequenceNode"
|
|
case yaml.MappingNode:
|
|
return "MappingNode"
|
|
case yaml.DocumentNode:
|
|
return "DocumentNode"
|
|
case yaml.AliasNode:
|
|
return "AliasNode"
|
|
default:
|
|
return "unknown!"
|
|
}
|
|
}
|