WIP on config parser before attempting to learn FSMs

server.cfg

@@ -6,11 +6,19 @@ port 6697 { ssl = true }
 port 7011 {
     ssl = true
     class = "server"
+    bind_ip = "87.237.63.85"
 }
 
 oper fluffle {
-    pass = "foobar"
+    password = "foobar"
     hostmask = "*camelid@*"
     link = true
 }
 
+oper "bb101" {
+    password = "dongs"
+    hostmask = "*bb10@*.enta.net"
+    hostmask = "*bb@*.dongs.com"
+    renick = true
+}
+

server/config/config.go

@@ -36,7 +36,7 @@ type keywordMap map[string]func(*Config, interface{})
 
 var configKeywords = configMap{
 	"port": (*Config).parsePort,
-//	"oper": (*Config).parseOper,
+	"oper": (*Config).parseOper,
 //	"link": (*Config).parseLink,
 //	"ban":  (*Config).parseBan,
 //	"info": (*Config).parseInfo,
@@ -142,6 +142,15 @@ func (conf *Config) expectInt() (int, bool) {
 	return num, true
 }
 
+func (conf *Config) expectString() (string, bool) {
+	tok, text := conf.next()
+	if tok != scanner.String && tok != scanner.Ident {
+		conf.parseError("Expected string, got '%s'", text)
+		return "", false
+	}
+	return text, true
+}
+
 func (conf *Config) expect(str string) bool {
 	_, text := conf.next()
 	if text != str {

server/config/oper.go

@@ -1,16 +1,106 @@
 package config
 
+import (
+	"fmt"
+	"strings"
+	"scanner"
+)
+
 type cOper struct {
 	Username, Password string
 	HostMask []string
 
 	// Permissions for oper
-	CanKill, CanBan, CanNick, CanLink  bool
+	CanKill, CanBan, CanRenick, CanLink  bool
 }
 
-var cOperDefaults = &cOper{
-	HostMask: []string{"*@*"},
-	CanKill: true, CanBan: true,
-	CanNick: false, CanLink: false,
+var operKeywords = keywordMap{
+	"password": (*Config).parseOperPassword,
+	"hostmask": (*Config).parseOperHostMask,
+	"kill": (*Config).parseOperKill,
+	"ban": (*Config).parseOperBan,
+	"renick": (*Config).parseOperRenick,
+	"link": (*Config).parseOperLink,
 }
 
+func defaultOper() *cOper {
+	return &cOper{
+		HostMask: []string{},
+		CanKill: true, CanBan: true,
+		CanRenick: false, CanLink: false,
+	}
+}
+
+func (o *cOper) String() string {
+    str := []string{fmt.Sprintf("oper \"%s\" {", o.Username)}
+	str = append(str, fmt.Sprintf("\tpassword = \"%s\"", o.Password))
+	if len(o.HostMask) == 0 {
+		str = append(str, fmt.Sprintf("\thostmask = \"*@*\""))
+	} else {
+		for _, h := range o.HostMask {
+			str = append(str, fmt.Sprintf("\thostmask = \"%s\"", h))
+		}
+	}
+	str = append(str,
+		fmt.Sprintf("\tkill    = %t", o.CanKill),
+		fmt.Sprintf("\tban     = %t", o.CanBan),
+		fmt.Sprintf("\trenick  = %t", o.CanRenick),
+		fmt.Sprintf("\tlink    = %t", o.CanLink),
+		"}",
+	)
+	return strings.Join(str, "\n")
+}
+
+func (conf *Config) parseOper() {
+	oper := defaultOper()
+	tok, text := conf.next()
+	if tok != scanner.String && tok != scanner.Ident {
+		conf.parseError("Invalid username '%s'", text)
+		return
+	}
+	oper.Username = text
+	conf.parseKwBlock(oper, "oper", operKeywords)
+	fmt.Println(oper.String())
+}
+
+func (conf *Config) parseOperPassword(oi interface{}) {
+	oper := oi.(*cOper)
+	if pass, ok := conf.expectString(); ok {
+		oper.Password = pass
+	}
+}
+
+func (conf *Config) parseOperHostMask(oi interface{}) {
+	oper := oi.(*cOper)
+	if mask, ok := conf.expectString(); ok {
+		oper.HostMask = append(oper.HostMask, mask)
+	}
+}
+
+func (conf *Config) parseOperKill(oi interface{}) {
+	oper := oi.(*cOper)
+	if kill, ok := conf.expectBool(); ok {
+		oper.CanKill = kill
+	}
+}
+
+func (conf *Config) parseOperBan(oi interface{}) {
+	oper := oi.(*cOper)
+	if ban, ok := conf.expectBool(); ok {
+		oper.CanBan = ban
+	}
+}
+
+func (conf *Config) parseOperRenick(oi interface{}) {
+	oper := oi.(*cOper)
+	if renick, ok := conf.expectBool(); ok {
+		oper.CanRenick = renick
+	}
+}
+
+func (conf *Config) parseOperLink(oi interface{}) {
+	oper := oi.(*cOper)
+	if link, ok := conf.expectBool(); ok {
+		oper.CanLink = link
+	}
+}

server/config/port.go

@@ -1,6 +1,7 @@
 package config
 
 import (
+	"net"
 	"fmt"
 	"strings"
 	"scanner"
@@ -8,40 +9,34 @@ import (
 
 type cPort struct {
 	Port     int
-	BindIP, Family, Class string
+	BindIP   net.IP // bind to a specific IP for listen port
+	Class    string // "server" or "client"
 
 	// Is port a tls.Listener? Does it support compression (no)?
 	SSL, Zip bool
-
-	// address == "<BindIP>:<Port>"
-	address	 string
 }
 
 var portKeywords = keywordMap{
-//	"bind_ip": (*Config).parsePortBindIP,
-//	"family": (*Config).parsePortFamily,
+	"bind_ip": (*Config).parsePortBindIP,
 	"class": (*Config).parsePortClass,
 	"ssl": (*Config).parsePortSSL,
-//	"zip": (*Config).parsePortZip,
-}
-
-var cPortDefaults = cPort{
-	BindIP: "", Family: "tcp", Class: "client",
-	SSL: false, Zip: false,
+	"zip": (*Config).parsePortZip,
 }
 
 func defaultPort() *cPort {
-	p := cPortDefaults
-	return &p
+	return &cPort{
+		BindIP: nil, Class: "client",
+		SSL: false, Zip: false,
+	}
 }
 
 func (p *cPort) String() string {
     str := []string{fmt.Sprintf("port %d {", p.Port)}
-	if p.BindIP != "" {
-		str = append(str, "\tbind_ip = " + p.BindIP)
+	if p.BindIP != nil {
+		str = append(str,
+			fmt.Sprintf("\tbind_ip = \"%s\"", p.BindIP.String()))
 	}
 	str = append(str,
-		fmt.Sprintf("\tfamily = \"%s\"",p.Family),
 		fmt.Sprintf("\tclass  = \"%s\"", p.Class),
 		fmt.Sprintf("\tssl    = %t", p.SSL),
 		fmt.Sprintf("\tzip    = %t", p.Zip),
@@ -66,6 +61,16 @@ func (conf *Config) parsePort() {
 	fmt.Println(port.String())
 }
 
+func (conf *Config) parsePortBindIP(pi interface{}) {
+	port := pi.(*cPort)
+	_, text := conf.next()
+	if ip := net.ParseIP(text); ip != nil {
+		port.BindIP = ip
+	} else {
+		conf.parseError("'%s' is not a valid IP address", text)
+	}
+}
+
 func (conf *Config) parsePortClass(pi interface{}) {
 	port := pi.(*cPort)
 	tok, text := conf.next()
@@ -84,3 +89,9 @@ func (conf *Config) parsePortSSL(pi interface{}) {
 	}
 }
 
+func (conf *Config) parsePortZip(pi interface{}) {
+	port := pi.(*cPort)
+	if zip, ok := conf.expectBool(); ok {
+		port.Zip = zip
+	}
+}