diff options
Diffstat (limited to '')
-rw-r--r-- | vendor/gopkg.in/yaml.v3/resolve.go (renamed from vendor/gopkg.in/yaml.v2/resolve.go) | 138 |
1 files changed, 103 insertions, 35 deletions
diff --git a/vendor/gopkg.in/yaml.v2/resolve.go b/vendor/gopkg.in/yaml.v3/resolve.go index 4120e0c..64ae888 100644 --- a/vendor/gopkg.in/yaml.v2/resolve.go +++ b/vendor/gopkg.in/yaml.v3/resolve.go @@ -1,3 +1,18 @@ +// +// Copyright (c) 2011-2019 Canonical Ltd +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + package yaml import ( @@ -34,18 +49,14 @@ func init() { tag string l []string }{ - {true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}}, - {true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}}, - {true, yaml_BOOL_TAG, []string{"on", "On", "ON"}}, - {false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}}, - {false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}}, - {false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}}, - {nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}}, - {math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}}, - {math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}}, - {math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}}, - {math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}}, - {"<<", yaml_MERGE_TAG, []string{"<<"}}, + {true, boolTag, []string{"true", "True", "TRUE"}}, + {false, boolTag, []string{"false", "False", "FALSE"}}, + {nil, nullTag, []string{"", "~", "null", "Null", "NULL"}}, + {math.NaN(), floatTag, []string{".nan", ".NaN", ".NAN"}}, + {math.Inf(+1), floatTag, []string{".inf", ".Inf", ".INF"}}, + {math.Inf(+1), floatTag, []string{"+.inf", "+.Inf", "+.INF"}}, + {math.Inf(-1), floatTag, []string{"-.inf", "-.Inf", "-.INF"}}, + {"<<", mergeTag, []string{"<<"}}, } m := resolveMap @@ -56,11 +67,37 @@ func init() { } } +const ( + nullTag = "!!null" + boolTag = "!!bool" + strTag = "!!str" + intTag = "!!int" + floatTag = "!!float" + timestampTag = "!!timestamp" + seqTag = "!!seq" + mapTag = "!!map" + binaryTag = "!!binary" + mergeTag = "!!merge" +) + +var longTags = make(map[string]string) +var shortTags = make(map[string]string) + +func init() { + for _, stag := range []string{nullTag, boolTag, strTag, intTag, floatTag, timestampTag, seqTag, mapTag, binaryTag, mergeTag} { + ltag := longTag(stag) + longTags[stag] = ltag + shortTags[ltag] = stag + } +} + const longTagPrefix = "tag:yaml.org,2002:" func shortTag(tag string) string { - // TODO This can easily be made faster and produce less garbage. if strings.HasPrefix(tag, longTagPrefix) { + if stag, ok := shortTags[tag]; ok { + return stag + } return "!!" + tag[len(longTagPrefix):] } return tag @@ -68,6 +105,9 @@ func shortTag(tag string) string { func longTag(tag string) string { if strings.HasPrefix(tag, "!!") { + if ltag, ok := longTags[tag]; ok { + return ltag + } return longTagPrefix + tag[2:] } return tag @@ -75,7 +115,7 @@ func longTag(tag string) string { func resolvableTag(tag string) bool { switch tag { - case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG, yaml_TIMESTAMP_TAG: + case "", strTag, boolTag, intTag, floatTag, nullTag, timestampTag: return true } return false @@ -84,23 +124,24 @@ func resolvableTag(tag string) bool { var yamlStyleFloat = regexp.MustCompile(`^[-+]?(\.[0-9]+|[0-9]+(\.[0-9]*)?)([eE][-+]?[0-9]+)?$`) func resolve(tag string, in string) (rtag string, out interface{}) { + tag = shortTag(tag) if !resolvableTag(tag) { return tag, in } defer func() { switch tag { - case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG: + case "", rtag, strTag, binaryTag: return - case yaml_FLOAT_TAG: - if rtag == yaml_INT_TAG { + case floatTag: + if rtag == intTag { switch v := out.(type) { case int64: - rtag = yaml_FLOAT_TAG + rtag = floatTag out = float64(v) return case int: - rtag = yaml_FLOAT_TAG + rtag = floatTag out = float64(v) return } @@ -115,7 +156,7 @@ func resolve(tag string, in string) (rtag string, out interface{}) { if in != "" { hint = resolveTable[in[0]] } - if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG { + if hint != 0 && tag != strTag && tag != binaryTag { // Handle things we can lookup in a map. if item, ok := resolveMap[in]; ok { return item.tag, item.value @@ -133,17 +174,17 @@ func resolve(tag string, in string) (rtag string, out interface{}) { // Not in the map, so maybe a normal float. floatv, err := strconv.ParseFloat(in, 64) if err == nil { - return yaml_FLOAT_TAG, floatv + return floatTag, floatv } case 'D', 'S': // Int, float, or timestamp. // Only try values as a timestamp if the value is unquoted or there's an explicit // !!timestamp tag. - if tag == "" || tag == yaml_TIMESTAMP_TAG { + if tag == "" || tag == timestampTag { t, ok := parseTimestamp(in) if ok { - return yaml_TIMESTAMP_TAG, t + return timestampTag, t } } @@ -151,49 +192,76 @@ func resolve(tag string, in string) (rtag string, out interface{}) { intv, err := strconv.ParseInt(plain, 0, 64) if err == nil { if intv == int64(int(intv)) { - return yaml_INT_TAG, int(intv) + return intTag, int(intv) } else { - return yaml_INT_TAG, intv + return intTag, intv } } uintv, err := strconv.ParseUint(plain, 0, 64) if err == nil { - return yaml_INT_TAG, uintv + return intTag, uintv } if yamlStyleFloat.MatchString(plain) { floatv, err := strconv.ParseFloat(plain, 64) if err == nil { - return yaml_FLOAT_TAG, floatv + return floatTag, floatv } } if strings.HasPrefix(plain, "0b") { intv, err := strconv.ParseInt(plain[2:], 2, 64) if err == nil { if intv == int64(int(intv)) { - return yaml_INT_TAG, int(intv) + return intTag, int(intv) } else { - return yaml_INT_TAG, intv + return intTag, intv } } uintv, err := strconv.ParseUint(plain[2:], 2, 64) if err == nil { - return yaml_INT_TAG, uintv + return intTag, uintv } } else if strings.HasPrefix(plain, "-0b") { - intv, err := strconv.ParseInt("-" + plain[3:], 2, 64) + intv, err := strconv.ParseInt("-"+plain[3:], 2, 64) + if err == nil { + if true || intv == int64(int(intv)) { + return intTag, int(intv) + } else { + return intTag, intv + } + } + } + // Octals as introduced in version 1.2 of the spec. + // Octals from the 1.1 spec, spelled as 0777, are still + // decoded by default in v3 as well for compatibility. + // May be dropped in v4 depending on how usage evolves. + if strings.HasPrefix(plain, "0o") { + intv, err := strconv.ParseInt(plain[2:], 8, 64) + if err == nil { + if intv == int64(int(intv)) { + return intTag, int(intv) + } else { + return intTag, intv + } + } + uintv, err := strconv.ParseUint(plain[2:], 8, 64) + if err == nil { + return intTag, uintv + } + } else if strings.HasPrefix(plain, "-0o") { + intv, err := strconv.ParseInt("-"+plain[3:], 8, 64) if err == nil { if true || intv == int64(int(intv)) { - return yaml_INT_TAG, int(intv) + return intTag, int(intv) } else { - return yaml_INT_TAG, intv + return intTag, intv } } } default: - panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")") + panic("internal error: missing handler for resolver table: " + string(rune(hint)) + " (with " + in + ")") } } - return yaml_STR_TAG, in + return strTag, in } // encodeBase64 encodes s as base64 that is broken up into multiple lines |