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mimeinfo.go
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mimeinfo.go
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// Copyright 2015 Richard Lehane. All rights reserved.
//
// 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 mappings
import "encoding/xml"
type MIMEInfo struct {
XMLName xml.Name `xml:"mime-info"`
MIMETypes []MIMEType `xml:"mime-type"`
}
type MIMEType struct {
MIME string `xml:"type,attr"`
Globs []struct {
Pattern string `xml:"pattern,attr"`
Weight string `xml:"weight,attr"`
} `xml:"glob"`
XMLPattern []struct {
Local string `xml:"localName,attr"`
NS string `xml:"namespaceURI,attr"`
} `xml:"root-XML"`
Magic []Magic `xml:"magic"`
Aliases []struct {
Alias string `xml:"type,attr"`
} `xml:"alias"`
SuperiorClasses []struct {
SubClassOf string `xml:"type,attr"`
} `xml:"sub-class-of"`
Comment []string `xml:"_comment"`
Comments []string `xml:"comment"`
Acronym []string `xml:"acronym"`
Superior bool `xml:"-"`
}
type Magic struct {
Matches []Match `xml:"match"`
Priority string `xml:"priority,attr"`
}
type Match struct {
Typ string `xml:"type,attr"`
Offset string `xml:"offset,attr"`
Value string `xml:"value,attr"`
Mask string `xml:"mask,attr"`
Matches []Match `xml:"match"`
}
// Some string methods just for debugging the mappings - delete once confirmed
type stringMaker [][]string
func (sm stringMaker) stringify() string {
if len(sm) == 0 {
return ""
}
str := "["
for i, item := range sm {
if i > 0 {
str += " | "
}
for j, field := range item {
if j > 0 && field != "" {
str += "; "
}
str += field
}
}
return str + "]"
}
func matchString(m Match) string {
str := "{"
str += "type:" + m.Typ
str += ",off:" + m.Offset
str += ",pat:" + m.Value
if m.Mask != "" {
str += ",mask:" + m.Mask
}
if len(m.Matches) > 0 {
str += " ==> "
for i, sub := range m.Matches {
if i > 0 {
str += " | "
}
str += matchString(sub)
}
}
return str + "}"
}
func (m MIMEType) String() string {
glob := make(stringMaker, len(m.Globs))
for i, g := range m.Globs {
glob[i] = []string{g.Pattern, g.Weight}
}
xmlPat := make(stringMaker, len(m.XMLPattern))
for i, x := range m.XMLPattern {
xmlPat[i] = []string{x.Local, x.NS}
}
var magic string
if len(m.Magic) > 0 {
magic = "["
for i, mg := range m.Magic {
if i > 0 {
magic += " || "
}
if mg.Priority != "" {
magic += "priority: " + mg.Priority + " "
}
for _, mt := range mg.Matches {
magic += matchString(mt)
}
}
magic += "]"
}
return m.MIME + " " + glob.stringify() + " " + xmlPat.stringify() + magic
}