Updated to work with new xproto XML files.

Namely, the "doc" element is ignored. Also, I've sorted everything
before output so that diff isn't completely useless.

nexgb/xgbgen/context.go

@@ -5,6 +5,7 @@ import (
 	"encoding/xml"
 	"fmt"
 	"log"
+	"sort"
 	"time"
 )
 
@@ -70,6 +71,8 @@ func (c *Context) Morph(xmlBytes []byte) {
 	if c.protocol.isExt() {
 		c.Putln("\"github.com/BurntSushi/xgb/xproto\"")
 	}
+
+	sort.Sort(Protocols(c.protocol.Imports))
 	for _, imp := range c.protocol.Imports {
 		// We always import xproto, so skip it if it's explicitly imported
 		if imp.Name == "xproto" {
@@ -142,6 +145,8 @@ func (c *Context) Morph(xmlBytes []byte) {
 	}
 
 	// Now write Go source code
+	sort.Sort(Types(c.protocol.Types))
+	sort.Sort(Requests(c.protocol.Requests))
 	for _, typ := range c.protocol.Types {
 		typ.Define(c)
 	}

nexgb/xgbgen/protocol.go

@@ -22,6 +22,12 @@ type Protocol struct {
 	Requests []*Request
 }
 
+type Protocols []*Protocol
+
+func (ps Protocols) Len() int           { return len(ps) }
+func (ps Protocols) Swap(i, j int)      { ps[i], ps[j] = ps[j], ps[i] }
+func (ps Protocols) Less(i, j int) bool { return ps[i].ExtName < ps[j].ExtName }
+
 // Initialize traverses all structures, looks for 'Translation' type,
 // and looks up the real type in the namespace. It also sets the source
 // name for all relevant fields/structures.

nexgb/xgbgen/request_reply.go

@@ -17,6 +17,12 @@ type Request struct {
 	Reply   *Reply  // A reply, if one exists for this request.
 }
 
+type Requests []*Request
+
+func (rs Requests) Len() int           { return len(rs) }
+func (rs Requests) Swap(i, j int)      { rs[i], rs[j] = rs[j], rs[i] }
+func (rs Requests) Less(i, j int) bool { return rs[i].xmlName < rs[j].xmlName }
+
 // Initialize creates the proper Go source name for this request.
 // It also initializes the reply if one exists, and all fields in this request.
 func (r *Request) Initialize(p *Protocol) {

nexgb/xgbgen/translation.go

@@ -137,10 +137,13 @@ func (x *XMLEvent) Translate() *Event {
 		xmlName:    x.Name,
 		Number:     x.Number,
 		NoSequence: x.NoSequence,
-		Fields:     make([]Field, len(x.Fields)),
+		Fields:     make([]Field, 0, len(x.Fields)),
 	}
-	for i, field := range x.Fields {
-		ev.Fields[i] = field.Translate(ev)
+	for _, field := range x.Fields {
+		if field.XMLName.Local == "doc" {
+			continue
+		}
+		ev.Fields = append(ev.Fields, field.Translate(ev))
 	}
 	return ev
 }
@@ -200,11 +203,14 @@ func (x *XMLRequest) Translate() *Request {
 		xmlName: x.Name,
 		Opcode:  x.Opcode,
 		Combine: x.Combine,
-		Fields:  make([]Field, len(x.Fields)),
+		Fields:  make([]Field, 0, len(x.Fields)),
 		Reply:   x.Reply.Translate(),
 	}
-	for i, field := range x.Fields {
-		r.Fields[i] = field.Translate(r)
+	for _, field := range x.Fields {
+		if field.XMLName.Local == "doc" {
+			continue
+		}
+		r.Fields = append(r.Fields, field.Translate(r))
 	}
 
 	// Address bug (or legacy code) in QueryTextExtents.
@@ -229,10 +235,13 @@ func (x *XMLReply) Translate() *Reply {
 	}
 
 	r := &Reply{
-		Fields: make([]Field, len(x.Fields)),
+		Fields: make([]Field, 0, len(x.Fields)),
 	}
-	for i, field := range x.Fields {
-		r.Fields[i] = field.Translate(r)
+	for _, field := range x.Fields {
+		if field.XMLName.Local == "doc" {
+			continue
+		}
+		r.Fields = append(r.Fields, field.Translate(r))
 	}
 	return r
 }
@@ -380,7 +389,6 @@ func SrcName(p *Protocol, name string) string {
 	if newn, ok := NameMap[name]; ok {
 		return newn
 	}
-
 	return splitAndTitle(name)
 }
 

nexgb/xgbgen/type.go

@@ -14,6 +14,16 @@ type Type interface {
 	Define(c *Context)
 }
 
+type Types []Type
+
+func (ts Types) Len() int      { return len(ts) }
+func (ts Types) Swap(i, j int) { ts[i], ts[j] = ts[j], ts[i] }
+func (ts Types) Less(i, j int) bool {
+	x1, x2 := ts[i].XmlName(), ts[j].XmlName()
+	s1, s2 := ts[i].SrcName(), ts[j].SrcName()
+	return (s1 == s2 && x1 < x2) || s1 < s2
+}
+
 // Translation is used *only* when transitioning from XML types to
 // our better representation. They are placeholders for the real types (below)
 // that will replace them.