haven/nexgb/xgbgen/xml.go

139 lines
3.2 KiB
Go

package main
import (
"encoding/xml"
"io/ioutil"
"log"
)
type XML struct {
// Root 'xcb' element properties.
XMLName xml.Name `xml:"xcb"`
Header string `xml:"header,attr"`
ExtensionXName string `xml:"extension-xname,attr"`
ExtensionName string `xml:"extension-name,attr"`
MajorVersion string `xml:"major-version,attr"`
MinorVersion string `xml:"minor-version,attr"`
// Types for all top-level elements.
// First are the simple ones.
Imports XMLImports `xml:"import"`
Enums []*XMLEnum `xml:"enum"`
Xids []*XMLXid `xml:"xidtype"`
XidUnions []*XMLXid `xml:"xidunion"`
TypeDefs []*XMLTypeDef `xml:"typedef"`
EventCopies []*XMLEventCopy `xml:"eventcopy"`
ErrorCopies []*XMLErrorCopy `xml:"errorcopy"`
// Here are the complex ones, i.e., anything with "structure contents"
Structs []*XMLStruct `xml:"struct"`
Unions []*XMLUnion `xml:"union"`
Requests []*XMLRequest `xml:"request"`
Events []*XMLEvent `xml:"event"`
Errors []*XMLError `xml:"error"`
}
type XMLImports []*XMLImport
func (imports XMLImports) Eval() {
for _, imp := range imports {
xmlBytes, err := ioutil.ReadFile(*protoPath + "/" + imp.Name + ".xml")
if err != nil {
log.Fatalf("Could not read X protocol description for import "+
"'%s' because: %s", imp.Name, err)
}
imp.xml = &XML{}
err = xml.Unmarshal(xmlBytes, imp.xml)
if err != nil {
log.Fatal("Could not parse X protocol description for import "+
"'%s' because: %s", imp.Name, err)
}
// recursive imports...
imp.xml.Imports.Eval()
}
}
type XMLImport struct {
Name string `xml:",chardata"`
xml *XML `xml:"-"`
}
type XMLEnum struct {
Name string `xml:"name,attr"`
Items []*XMLEnumItem `xml:"item"`
}
type XMLEnumItem struct {
Name string `xml:"name,attr"`
Expr *XMLExpression `xml:",any"`
}
type XMLXid struct {
XMLName xml.Name
Name string `xml:"name,attr"`
}
type XMLTypeDef struct {
Old string `xml:"oldname,attr"`
New string `xml:"newname,attr"`
}
type XMLEventCopy struct {
Name string `xml:"name,attr"`
Number int `xml:"number,attr"`
Ref string `xml:"ref,attr"`
}
type XMLErrorCopy struct {
Name string `xml:"name,attr"`
Number int `xml:"number,attr"`
Ref string `xml:"ref,attr"`
}
type XMLStruct struct {
Name string `xml:"name,attr"`
Fields []*XMLField `xml:",any"`
}
type XMLUnion struct {
Name string `xml:"name,attr"`
Fields []*XMLField `xml:",any"`
}
type XMLRequest struct {
Name string `xml:"name,attr"`
Opcode int `xml:"opcode,attr"`
Combine bool `xml:"combine-adjacent,attr"`
Fields []*XMLField `xml:",any"`
Reply *XMLReply `xml:"reply"`
}
type XMLReply struct {
Fields []*XMLField `xml:",any"`
}
type XMLEvent struct {
Name string `xml:"name,attr"`
Number int `xml:"number,attr"`
NoSequence bool `xml:"no-sequence-number,attr"`
Fields []*XMLField `xml:",any"`
}
type XMLError struct {
Name string `xml:"name,attr"`
Number int `xml:"number,attr"`
Fields []*XMLField `xml:",any"`
}
type XMLExpression struct {
XMLName xml.Name
Exprs []*XMLExpression `xml:",any"`
Data string `xml:",chardata"`
Op string `xml:"op,attr"`
Ref string `xml:"ref,attr"`
}