diff --git a/constants.go b/constants.go
index ebfce8a..96504a3 100644
--- a/constants.go
+++ b/constants.go
@@ -124,32 +124,32 @@ func getByteRange(start byte, end byte) []byte {
 	return bytes
 }
 
-var ToGroundBytes = getToGroundBytes()
-var Executors = getExecuteBytes()
+var toGroundBytes = getToGroundBytes()
+var executors = getExecuteBytes()
 
 // SPACE		  20+A0 hex  Always and everywhere a blank space
 // Intermediate	  20-2F hex   !"#$%&'()*+,-./
-var Intermeds = getByteRange(0x20, 0x2F)
+var intermeds = getByteRange(0x20, 0x2F)
 
 // Parameters	  30-3F hex  0123456789:;<=>?
 // CSI Parameters 30-39, 3B hex 0123456789;
-var CsiParams = getByteRange(0x30, 0x3F)
+var csiParams = getByteRange(0x30, 0x3F)
 
-var CsiCollectables = append(getByteRange(0x30, 0x39), getByteRange(0x3B, 0x3F)...)
+var csiCollectables = append(getByteRange(0x30, 0x39), getByteRange(0x3B, 0x3F)...)
 
 // Uppercase	  40-5F hex  @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
-var UpperCase = getByteRange(0x40, 0x5F)
+var upperCase = getByteRange(0x40, 0x5F)
 
 // Lowercase	  60-7E hex  `abcdefghijlkmnopqrstuvwxyz{|}~
-var LowerCase = getByteRange(0x60, 0x7E)
+var lowerCase = getByteRange(0x60, 0x7E)
 
 // Alphabetics	  40-7E hex  (all of upper and lower case)
-var Alphabetics = append(UpperCase, LowerCase...)
+var alphabetics = append(upperCase, lowerCase...)
 
-var Printables = getByteRange(0x20, 0x7F)
+var printables = getByteRange(0x20, 0x7F)
 
-var EscapeIntermediateToGroundBytes = getByteRange(0x30, 0x7E)
-var EscapeToGroundBytes = getEscapeToGroundBytes()
+var escapeIntermediateToGroundBytes = getByteRange(0x30, 0x7E)
+var escapeToGroundBytes = getEscapeToGroundBytes()
 
 // See http://www.vt100.net/emu/vt500_parser.png for description of the complex
 // byte ranges below
diff --git a/context.go b/context.go
index d55cc2a..8d66e77 100644
--- a/context.go
+++ b/context.go
@@ -1,6 +1,6 @@
 package ansiterm
 
-type AnsiContext struct {
+type ansiContext struct {
 	currentChar byte
 	paramBuffer []byte
 	interBuffer []byte
diff --git a/csi_entry_state.go b/csi_entry_state.go
index 9fd4bd2..1bd6057 100644
--- a/csi_entry_state.go
+++ b/csi_entry_state.go
@@ -1,41 +1,41 @@
 package ansiterm
 
-type CsiEntryState struct {
-	BaseState
+type csiEntryState struct {
+	baseState
 }
 
-func (csiState CsiEntryState) Handle(b byte) (s State, e error) {
+func (csiState csiEntryState) Handle(b byte) (s state, e error) {
 	logger.Infof("CsiEntry::Handle %#x", b)
 
-	nextState, err := csiState.BaseState.Handle(b)
+	nextState, err := csiState.baseState.Handle(b)
 	if nextState != nil || err != nil {
 		return nextState, err
 	}
 
 	switch {
-	case sliceContains(Alphabetics, b):
-		return csiState.parser.Ground, nil
-	case sliceContains(CsiCollectables, b):
-		return csiState.parser.CsiParam, nil
-	case sliceContains(Executors, b):
+	case sliceContains(alphabetics, b):
+		return csiState.parser.ground, nil
+	case sliceContains(csiCollectables, b):
+		return csiState.parser.csiParam, nil
+	case sliceContains(executors, b):
 		return csiState, csiState.parser.execute()
 	}
 
 	return csiState, nil
 }
 
-func (csiState CsiEntryState) Transition(s State) error {
+func (csiState csiEntryState) Transition(s state) error {
 	logger.Infof("CsiEntry::Transition %s --> %s", csiState.Name(), s.Name())
-	csiState.BaseState.Transition(s)
+	csiState.baseState.Transition(s)
 
 	switch s {
-	case csiState.parser.Ground:
+	case csiState.parser.ground:
 		return csiState.parser.csiDispatch()
-	case csiState.parser.CsiParam:
+	case csiState.parser.csiParam:
 		switch {
-		case sliceContains(CsiParams, csiState.parser.context.currentChar):
+		case sliceContains(csiParams, csiState.parser.context.currentChar):
 			csiState.parser.collectParam()
-		case sliceContains(Intermeds, csiState.parser.context.currentChar):
+		case sliceContains(intermeds, csiState.parser.context.currentChar):
 			csiState.parser.collectInter()
 		}
 	}
@@ -43,7 +43,7 @@ func (csiState CsiEntryState) Transition(s State) error {
 	return nil
 }
 
-func (csiState CsiEntryState) Enter() error {
+func (csiState csiEntryState) Enter() error {
 	csiState.parser.clear()
 	return nil
 }
diff --git a/csi_param_state.go b/csi_param_state.go
index 27807dd..4be35c5 100644
--- a/csi_param_state.go
+++ b/csi_param_state.go
@@ -1,36 +1,36 @@
 package ansiterm
 
-type CsiParamState struct {
-	BaseState
+type csiParamState struct {
+	baseState
 }
 
-func (csiState CsiParamState) Handle(b byte) (s State, e error) {
+func (csiState csiParamState) Handle(b byte) (s state, e error) {
 	logger.Infof("CsiParam::Handle %#x", b)
 
-	nextState, err := csiState.BaseState.Handle(b)
+	nextState, err := csiState.baseState.Handle(b)
 	if nextState != nil || err != nil {
 		return nextState, err
 	}
 
 	switch {
-	case sliceContains(Alphabetics, b):
-		return csiState.parser.Ground, nil
-	case sliceContains(CsiCollectables, b):
+	case sliceContains(alphabetics, b):
+		return csiState.parser.ground, nil
+	case sliceContains(csiCollectables, b):
 		csiState.parser.collectParam()
 		return csiState, nil
-	case sliceContains(Executors, b):
+	case sliceContains(executors, b):
 		return csiState, csiState.parser.execute()
 	}
 
 	return csiState, nil
 }
 
-func (csiState CsiParamState) Transition(s State) error {
+func (csiState csiParamState) Transition(s state) error {
 	logger.Infof("CsiParam::Transition %s --> %s", csiState.Name(), s.Name())
-	csiState.BaseState.Transition(s)
+	csiState.baseState.Transition(s)
 
 	switch s {
-	case csiState.parser.Ground:
+	case csiState.parser.ground:
 		return csiState.parser.csiDispatch()
 	}
 
diff --git a/escape_intermediate_state.go b/escape_intermediate_state.go
index b14e0ce..2189eb6 100644
--- a/escape_intermediate_state.go
+++ b/escape_intermediate_state.go
@@ -1,34 +1,34 @@
 package ansiterm
 
-type EscapeIntermediateState struct {
-	BaseState
+type escapeIntermediateState struct {
+	baseState
 }
 
-func (escState EscapeIntermediateState) Handle(b byte) (s State, e error) {
-	logger.Infof("EscapeIntermediateState::Handle %#x", b)
-	nextState, err := escState.BaseState.Handle(b)
+func (escState escapeIntermediateState) Handle(b byte) (s state, e error) {
+	logger.Infof("escapeIntermediateState::Handle %#x", b)
+	nextState, err := escState.baseState.Handle(b)
 	if nextState != nil || err != nil {
 		return nextState, err
 	}
 
 	switch {
-	case sliceContains(Intermeds, b):
+	case sliceContains(intermeds, b):
 		return escState, escState.parser.collectInter()
-	case sliceContains(Executors, b):
+	case sliceContains(executors, b):
 		return escState, escState.parser.execute()
-	case sliceContains(EscapeIntermediateToGroundBytes, b):
-		return escState.parser.Ground, nil
+	case sliceContains(escapeIntermediateToGroundBytes, b):
+		return escState.parser.ground, nil
 	}
 
 	return escState, nil
 }
 
-func (escState EscapeIntermediateState) Transition(s State) error {
-	logger.Infof("EscapeIntermediateState::Transition %s --> %s", escState.Name(), s.Name())
-	escState.BaseState.Transition(s)
+func (escState escapeIntermediateState) Transition(s state) error {
+	logger.Infof("escapeIntermediateState::Transition %s --> %s", escState.Name(), s.Name())
+	escState.baseState.Transition(s)
 
 	switch s {
-	case escState.parser.Ground:
+	case escState.parser.ground:
 		return escState.parser.escDispatch()
 	}
 
diff --git a/escape_state.go b/escape_state.go
index 232dd8e..7b1b9ad 100644
--- a/escape_state.go
+++ b/escape_state.go
@@ -1,47 +1,47 @@
 package ansiterm
 
-type EscapeState struct {
-	BaseState
+type escapeState struct {
+	baseState
 }
 
-func (escState EscapeState) Handle(b byte) (s State, e error) {
-	logger.Infof("EscapeState::Handle %#x", b)
-	nextState, err := escState.BaseState.Handle(b)
+func (escState escapeState) Handle(b byte) (s state, e error) {
+	logger.Infof("escapeState::Handle %#x", b)
+	nextState, err := escState.baseState.Handle(b)
 	if nextState != nil || err != nil {
 		return nextState, err
 	}
 
 	switch {
 	case b == ANSI_ESCAPE_SECONDARY:
-		return escState.parser.CsiEntry, nil
+		return escState.parser.csiEntry, nil
 	case b == ANSI_OSC_STRING_ENTRY:
-		return escState.parser.OscString, nil
-	case sliceContains(Executors, b):
+		return escState.parser.oscString, nil
+	case sliceContains(executors, b):
 		return escState, escState.parser.execute()
-	case sliceContains(EscapeToGroundBytes, b):
-		return escState.parser.Ground, nil
-	case sliceContains(Intermeds, b):
-		return escState.parser.EscapeIntermediate, nil
+	case sliceContains(escapeToGroundBytes, b):
+		return escState.parser.ground, nil
+	case sliceContains(intermeds, b):
+		return escState.parser.escapeIntermediate, nil
 	}
 
 	return escState, nil
 }
 
-func (escState EscapeState) Transition(s State) error {
+func (escState escapeState) Transition(s state) error {
 	logger.Infof("Escape::Transition %s --> %s", escState.Name(), s.Name())
-	escState.BaseState.Transition(s)
+	escState.baseState.Transition(s)
 
 	switch s {
-	case escState.parser.Ground:
+	case escState.parser.ground:
 		return escState.parser.escDispatch()
-	case escState.parser.EscapeIntermediate:
+	case escState.parser.escapeIntermediate:
 		return escState.parser.collectInter()
 	}
 
 	return nil
 }
 
-func (escState EscapeState) Enter() error {
+func (escState escapeState) Enter() error {
 	escState.parser.clear()
 	return nil
 }
diff --git a/ground_state.go b/ground_state.go
index d600e3e..52451e9 100644
--- a/ground_state.go
+++ b/ground_state.go
@@ -1,22 +1,22 @@
 package ansiterm
 
-type GroundState struct {
-	BaseState
+type groundState struct {
+	baseState
 }
 
-func (gs GroundState) Handle(b byte) (s State, e error) {
+func (gs groundState) Handle(b byte) (s state, e error) {
 	gs.parser.context.currentChar = b
 
-	nextState, err := gs.BaseState.Handle(b)
+	nextState, err := gs.baseState.Handle(b)
 	if nextState != nil || err != nil {
 		return nextState, err
 	}
 
 	switch {
-	case sliceContains(Printables, b):
+	case sliceContains(printables, b):
 		return gs, gs.parser.print()
 
-	case sliceContains(Executors, b):
+	case sliceContains(executors, b):
 		return gs, gs.parser.execute()
 	}
 
diff --git a/osc_string_state.go b/osc_string_state.go
index 4490e3c..24062d4 100644
--- a/osc_string_state.go
+++ b/osc_string_state.go
@@ -1,19 +1,19 @@
 package ansiterm
 
-type OscStringState struct {
-	BaseState
+type oscStringState struct {
+	baseState
 }
 
-func (oscState OscStringState) Handle(b byte) (s State, e error) {
+func (oscState oscStringState) Handle(b byte) (s state, e error) {
 	logger.Infof("OscString::Handle %#x", b)
-	nextState, err := oscState.BaseState.Handle(b)
+	nextState, err := oscState.baseState.Handle(b)
 	if nextState != nil || err != nil {
 		return nextState, err
 	}
 
 	switch {
 	case isOscStringTerminator(b):
-		return oscState.parser.Ground, nil
+		return oscState.parser.ground, nil
 	}
 
 	return oscState, nil
diff --git a/parser.go b/parser.go
index ef5e0ad..169f68d 100644
--- a/parser.go
+++ b/parser.go
@@ -2,7 +2,6 @@ package ansiterm
 
 import (
 	"errors"
-	"fmt"
 	"io/ioutil"
 	"os"
 
@@ -12,18 +11,18 @@ import (
 var logger *logrus.Logger
 
 type AnsiParser struct {
-	currState          State
+	currState          state
 	eventHandler       AnsiEventHandler
-	context            *AnsiContext
-	CsiEntry           State
-	CsiParam           State
-	DcsEntry           State
-	Escape             State
-	EscapeIntermediate State
-	Error              State
-	Ground             State
-	OscString          State
-	stateMap           []State
+	context            *ansiContext
+	csiEntry           state
+	csiParam           state
+	dcsEntry           state
+	escape             state
+	escapeIntermediate state
+	error              state
+	ground             state
+	oscString          state
+	stateMap           []state
 }
 
 func CreateParser(initialState string, evtHandler AnsiEventHandler) *AnsiParser {
@@ -41,27 +40,27 @@ func CreateParser(initialState string, evtHandler AnsiEventHandler) *AnsiParser
 
 	parser := &AnsiParser{
 		eventHandler: evtHandler,
-		context:      &AnsiContext{},
+		context:      &ansiContext{},
 	}
 
-	parser.CsiEntry = CsiEntryState{BaseState{name: "CsiEntry", parser: parser}}
-	parser.CsiParam = CsiParamState{BaseState{name: "CsiParam", parser: parser}}
-	parser.DcsEntry = DcsEntryState{BaseState{name: "DcsEntry", parser: parser}}
-	parser.Escape = EscapeState{BaseState{name: "Escape", parser: parser}}
-	parser.EscapeIntermediate = EscapeIntermediateState{BaseState{name: "EscapeIntermediate", parser: parser}}
-	parser.Error = ErrorState{BaseState{name: "Error", parser: parser}}
-	parser.Ground = GroundState{BaseState{name: "Ground", parser: parser}}
-	parser.OscString = OscStringState{BaseState{name: "OscString", parser: parser}}
-
-	parser.stateMap = []State{
-		parser.CsiEntry,
-		parser.CsiParam,
-		parser.DcsEntry,
-		parser.Escape,
-		parser.EscapeIntermediate,
-		parser.Error,
-		parser.Ground,
-		parser.OscString,
+	parser.csiEntry = csiEntryState{baseState{name: "CsiEntry", parser: parser}}
+	parser.csiParam = csiParamState{baseState{name: "CsiParam", parser: parser}}
+	parser.dcsEntry = dcsEntryState{baseState{name: "DcsEntry", parser: parser}}
+	parser.escape = escapeState{baseState{name: "Escape", parser: parser}}
+	parser.escapeIntermediate = escapeIntermediateState{baseState{name: "EscapeIntermediate", parser: parser}}
+	parser.error = errorState{baseState{name: "Error", parser: parser}}
+	parser.ground = groundState{baseState{name: "Ground", parser: parser}}
+	parser.oscString = oscStringState{baseState{name: "OscString", parser: parser}}
+
+	parser.stateMap = []state{
+		parser.csiEntry,
+		parser.csiParam,
+		parser.dcsEntry,
+		parser.escape,
+		parser.escapeIntermediate,
+		parser.error,
+		parser.ground,
+		parser.oscString,
 	}
 
 	parser.currState = getState(initialState, parser.stateMap)
@@ -70,7 +69,7 @@ func CreateParser(initialState string, evtHandler AnsiEventHandler) *AnsiParser
 	return parser
 }
 
-func getState(name string, states []State) State {
+func getState(name string, states []state) state {
 	for _, el := range states {
 		if el.Name() == name {
 			return el
@@ -99,7 +98,7 @@ func (ap *AnsiParser) handle(b byte) error {
 
 	if newState == nil {
 		logger.Warning("newState is nil")
-		return errors.New(fmt.Sprintf("New state of 'nil' is invalid."))
+		return errors.New("New state of 'nil' is invalid.")
 	}
 
 	if newState != ap.currState {
@@ -111,7 +110,7 @@ func (ap *AnsiParser) handle(b byte) error {
 	return nil
 }
 
-func (ap *AnsiParser) changeState(newState State) error {
+func (ap *AnsiParser) changeState(newState state) error {
 	logger.Infof("ChangeState %s --> %s", ap.currState.Name(), newState.Name())
 
 	// Exit old state
diff --git a/parser_action_helpers.go b/parser_action_helpers.go
index 4388020..8b69a67 100644
--- a/parser_action_helpers.go
+++ b/parser_action_helpers.go
@@ -31,7 +31,7 @@ func parseParams(bytes []byte) ([]string, error) {
 	return params, nil
 }
 
-func parseCmd(context AnsiContext) (string, error) {
+func parseCmd(context ansiContext) (string, error) {
 	return string(context.currentChar), nil
 }
 
diff --git a/parser_actions.go b/parser_actions.go
index 260e6aa..58750a2 100644
--- a/parser_actions.go
+++ b/parser_actions.go
@@ -113,7 +113,7 @@ func (ap *AnsiParser) print() error {
 }
 
 func (ap *AnsiParser) clear() error {
-	ap.context = &AnsiContext{}
+	ap.context = &ansiContext{}
 	return nil
 }
 
diff --git a/parser_test.go b/parser_test.go
index 6e6deb9..cd4888f 100644
--- a/parser_test.go
+++ b/parser_test.go
@@ -6,18 +6,18 @@ import (
 )
 
 func TestStateTransitions(t *testing.T) {
-	stateTransitionHelper(t, "CsiEntry", "Ground", Alphabetics)
-	stateTransitionHelper(t, "CsiEntry", "CsiParam", CsiCollectables)
+	stateTransitionHelper(t, "CsiEntry", "Ground", alphabetics)
+	stateTransitionHelper(t, "CsiEntry", "CsiParam", csiCollectables)
 	stateTransitionHelper(t, "Escape", "CsiEntry", []byte{ANSI_ESCAPE_SECONDARY})
 	stateTransitionHelper(t, "Escape", "OscString", []byte{0x5D})
-	stateTransitionHelper(t, "Escape", "Ground", EscapeToGroundBytes)
-	stateTransitionHelper(t, "Escape", "EscapeIntermediate", Intermeds)
-	stateTransitionHelper(t, "EscapeIntermediate", "EscapeIntermediate", Intermeds)
-	stateTransitionHelper(t, "EscapeIntermediate", "EscapeIntermediate", Executors)
-	stateTransitionHelper(t, "EscapeIntermediate", "Ground", EscapeIntermediateToGroundBytes)
+	stateTransitionHelper(t, "Escape", "Ground", escapeToGroundBytes)
+	stateTransitionHelper(t, "Escape", "EscapeIntermediate", intermeds)
+	stateTransitionHelper(t, "EscapeIntermediate", "EscapeIntermediate", intermeds)
+	stateTransitionHelper(t, "EscapeIntermediate", "EscapeIntermediate", executors)
+	stateTransitionHelper(t, "EscapeIntermediate", "Ground", escapeIntermediateToGroundBytes)
 	stateTransitionHelper(t, "OscString", "Ground", []byte{ANSI_BEL})
 	stateTransitionHelper(t, "OscString", "Ground", []byte{0x5C})
-	stateTransitionHelper(t, "Ground", "Ground", Executors)
+	stateTransitionHelper(t, "Ground", "Ground", executors)
 }
 
 func TestAnyToX(t *testing.T) {
@@ -25,27 +25,27 @@ func TestAnyToX(t *testing.T) {
 	anyToXHelper(t, []byte{DCS_ENTRY}, "DcsEntry")
 	anyToXHelper(t, []byte{OSC_STRING}, "OscString")
 	anyToXHelper(t, []byte{CSI_ENTRY}, "CsiEntry")
-	anyToXHelper(t, ToGroundBytes, "Ground")
+	anyToXHelper(t, toGroundBytes, "Ground")
 }
 
 func TestCollectCsiParams(t *testing.T) {
 	parser, _ := createTestParser("CsiEntry")
-	parser.Parse(CsiCollectables)
+	parser.Parse(csiCollectables)
 
 	buffer := parser.context.paramBuffer
 	bufferCount := len(buffer)
 
-	if bufferCount != len(CsiCollectables) {
+	if bufferCount != len(csiCollectables) {
 		t.Errorf("Buffer:    %v", buffer)
-		t.Errorf("CsiParams: %v", CsiCollectables)
-		t.Errorf("Buffer count failure: %d != %d", bufferCount, len(CsiParams))
+		t.Errorf("CsiParams: %v", csiCollectables)
+		t.Errorf("Buffer count failure: %d != %d", bufferCount, len(csiParams))
 		return
 	}
 
-	for i, v := range CsiCollectables {
+	for i, v := range csiCollectables {
 		if v != buffer[i] {
 			t.Errorf("Buffer:    %v", buffer)
-			t.Errorf("CsiParams: %v", CsiParams)
+			t.Errorf("CsiParams: %v", csiParams)
 			t.Errorf("Mismatch at buffer[%d] = %d", i, buffer[i])
 		}
 	}
@@ -105,10 +105,10 @@ func TestScroll(t *testing.T) {
 
 func TestPrint(t *testing.T) {
 	parser, evtHandler := createTestParser("Ground")
-	parser.Parse(Printables)
+	parser.Parse(printables)
 	validateState(t, parser.currState, "Ground")
 
-	for i, v := range Printables {
+	for i, v := range printables {
 		expectedCall := fmt.Sprintf("Print([%s])", string(v))
 		actualCall := evtHandler.FunctionCalls[i]
 		if actualCall != expectedCall {
diff --git a/parser_test_utilities_test.go b/parser_test_utilities_test.go
index 51d1d49..78b885c 100644
--- a/parser_test_utilities_test.go
+++ b/parser_test_utilities_test.go
@@ -11,7 +11,7 @@ func createTestParser(s string) (*AnsiParser, *TestAnsiEventHandler) {
 	return parser, evtHandler
 }
 
-func validateState(t *testing.T, actualState State, expectedStateName string) {
+func validateState(t *testing.T, actualState state, expectedStateName string) {
 	actualName := "Nil"
 
 	if actualState != nil {
@@ -19,7 +19,7 @@ func validateState(t *testing.T, actualState State, expectedStateName string) {
 	}
 
 	if actualName != expectedStateName {
-		t.Errorf("Invalid State: '%s' != '%s'", actualName, expectedStateName)
+		t.Errorf("Invalid state: '%s' != '%s'", actualName, expectedStateName)
 	}
 }
 
@@ -43,13 +43,13 @@ func validateFuncCalls(t *testing.T, actualCalls []string, expectedCalls []strin
 	}
 }
 
-func fillContext(context *AnsiContext) {
+func fillContext(context *ansiContext) {
 	context.currentChar = 'A'
 	context.paramBuffer = []byte{'C', 'D', 'E'}
 	context.interBuffer = []byte{'F', 'G', 'H'}
 }
 
-func validateEmptyContext(t *testing.T, context *AnsiContext) {
+func validateEmptyContext(t *testing.T, context *ansiContext) {
 	var expectedCurrChar byte = 0x0
 	if context.currentChar != expectedCurrChar {
 		t.Errorf("Currentchar mismatch '%#x' != '%#x'", context.currentChar, expectedCurrChar)
diff --git a/states.go b/states.go
index 0cbdcb3..f2ea1fc 100644
--- a/states.go
+++ b/states.go
@@ -1,52 +1,52 @@
 package ansiterm
 
-type StateId int
+type stateID int
 
-type State interface {
+type state interface {
 	Enter() error
 	Exit() error
-	Handle(byte) (State, error)
+	Handle(byte) (state, error)
 	Name() string
-	Transition(State) error
+	Transition(state) error
 }
 
-type BaseState struct {
+type baseState struct {
 	name   string
 	parser *AnsiParser
 }
 
-func (base BaseState) Enter() error {
+func (base baseState) Enter() error {
 	return nil
 }
 
-func (base BaseState) Exit() error {
+func (base baseState) Exit() error {
 	return nil
 }
 
-func (base BaseState) Handle(b byte) (s State, e error) {
+func (base baseState) Handle(b byte) (s state, e error) {
 
 	switch {
 	case b == CSI_ENTRY:
-		return base.parser.CsiEntry, nil
+		return base.parser.csiEntry, nil
 	case b == DCS_ENTRY:
-		return base.parser.DcsEntry, nil
+		return base.parser.dcsEntry, nil
 	case b == ANSI_ESCAPE_PRIMARY:
-		return base.parser.Escape, nil
+		return base.parser.escape, nil
 	case b == OSC_STRING:
-		return base.parser.OscString, nil
-	case sliceContains(ToGroundBytes, b):
-		return base.parser.Ground, nil
+		return base.parser.oscString, nil
+	case sliceContains(toGroundBytes, b):
+		return base.parser.ground, nil
 	}
 
 	return nil, nil
 }
 
-func (base BaseState) Name() string {
+func (base baseState) Name() string {
 	return base.name
 }
 
-func (base BaseState) Transition(s State) error {
-	if s == base.parser.Ground {
+func (base baseState) Transition(s state) error {
+	if s == base.parser.ground {
 		execBytes := []byte{0x18}
 		execBytes = append(execBytes, 0x1A)
 		execBytes = append(execBytes, getByteRange(0x80, 0x8F)...)
@@ -62,10 +62,10 @@ func (base BaseState) Transition(s State) error {
 	return nil
 }
 
-type DcsEntryState struct {
-	BaseState
+type dcsEntryState struct {
+	baseState
 }
 
-type ErrorState struct {
-	BaseState
+type errorState struct {
+	baseState
 }
diff --git a/winterm/ansi.go b/winterm/ansi.go
index 78fe92f..daf2f06 100644
--- a/winterm/ansi.go
+++ b/winterm/ansi.go
@@ -9,7 +9,7 @@ import (
 	"strings"
 	"syscall"
 
-	. "github.com/Azure/go-ansiterm"
+	"github.com/Azure/go-ansiterm"
 )
 
 // Windows keyboard constants
@@ -85,17 +85,17 @@ func newAnsiCommand(command []byte) *ansiCommand {
 	if lastCharIndex != 0 {
 		start := 1
 		// skip if double char escape sequence
-		if command[0] == ANSI_ESCAPE_PRIMARY && command[1] == ANSI_ESCAPE_SECONDARY {
+		if command[0] == ansiterm.ANSI_ESCAPE_PRIMARY && command[1] == ansiterm.ANSI_ESCAPE_SECONDARY {
 			start++
 		}
 		// convert this to GetNextParam method
-		ac.Parameters = strings.Split(string(command[start:lastCharIndex]), ANSI_PARAMETER_SEP)
+		ac.Parameters = strings.Split(string(command[start:lastCharIndex]), ansiterm.ANSI_PARAMETER_SEP)
 	}
 
 	return ac
 }
 
-func (ac *ansiCommand) paramAsSHORT(index int, defaultValue SHORT) SHORT {
+func (ac *ansiCommand) paramAsSHORT(index int, defaultValue int16) int16 {
 	if index < 0 || index >= len(ac.Parameters) {
 		return defaultValue
 	}
@@ -105,7 +105,7 @@ func (ac *ansiCommand) paramAsSHORT(index int, defaultValue SHORT) SHORT {
 		return defaultValue
 	}
 
-	return SHORT(param)
+	return int16(param)
 }
 
 func (ac *ansiCommand) String() string {
@@ -119,12 +119,12 @@ func (ac *ansiCommand) String() string {
 // See http://manpages.ubuntu.com/manpages/intrepid/man4/console_codes.4.html.
 func isAnsiCommandChar(b byte) bool {
 	switch {
-	case ANSI_COMMAND_FIRST <= b && b <= ANSI_COMMAND_LAST && b != ANSI_ESCAPE_SECONDARY:
+	case ansiterm.ANSI_COMMAND_FIRST <= b && b <= ansiterm.ANSI_COMMAND_LAST && b != ansiterm.ANSI_ESCAPE_SECONDARY:
 		return true
-	case b == ANSI_CMD_G1 || b == ANSI_CMD_OSC || b == ANSI_CMD_DECPAM || b == ANSI_CMD_DECPNM:
+	case b == ansiterm.ANSI_CMD_G1 || b == ansiterm.ANSI_CMD_OSC || b == ansiterm.ANSI_CMD_DECPAM || b == ansiterm.ANSI_CMD_DECPNM:
 		// non-CSI escape sequence terminator
 		return true
-	case b == ANSI_CMD_STR_TERM || b == ANSI_BEL:
+	case b == ansiterm.ANSI_CMD_STR_TERM || b == ansiterm.ANSI_BEL:
 		// String escape sequence terminator
 		return true
 	}
@@ -132,11 +132,11 @@ func isAnsiCommandChar(b byte) bool {
 }
 
 func isXtermOscSequence(command []byte, current byte) bool {
-	return (len(command) >= 2 && command[0] == ANSI_ESCAPE_PRIMARY && command[1] == ANSI_CMD_OSC && current != ANSI_BEL)
+	return (len(command) >= 2 && command[0] == ansiterm.ANSI_ESCAPE_PRIMARY && command[1] == ansiterm.ANSI_CMD_OSC && current != ansiterm.ANSI_BEL)
 }
 
 func isCharacterSelectionCmdChar(b byte) bool {
-	return (b == ANSI_CMD_G0 || b == ANSI_CMD_G1 || b == ANSI_CMD_G2 || b == ANSI_CMD_G3)
+	return (b == ansiterm.ANSI_CMD_G0 || b == ansiterm.ANSI_CMD_G1 || b == ansiterm.ANSI_CMD_G2 || b == ansiterm.ANSI_CMD_G3)
 }
 
 // bytesToHex converts a slice of bytes to a human-readable string.
@@ -150,7 +150,7 @@ func bytesToHex(b []byte) string {
 
 // ensureInRange adjusts the passed value, if necessary, to ensure it is within
 // the passed min / max range.
-func ensureInRange(n SHORT, min SHORT, max SHORT) SHORT {
+func ensureInRange(n int16, min int16, max int16) int16 {
 	if n < min {
 		return min
 	} else if n > max {
diff --git a/winterm/api.go b/winterm/api.go
index 1f2f385..462d92f 100644
--- a/winterm/api.go
+++ b/winterm/api.go
@@ -66,21 +66,21 @@ const (
 	// -- The attributes are combined to produce various colors (e.g., Blue + Green will create Cyan).
 	//    Clearing all foreground or background colors results in black; setting all creates white.
 	// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms682088(v=vs.85).aspx#_win32_character_attributes.
-	FOREGROUND_BLUE      WORD = 0x0001
-	FOREGROUND_GREEN     WORD = 0x0002
-	FOREGROUND_RED       WORD = 0x0004
-	FOREGROUND_INTENSITY WORD = 0x0008
-	FOREGROUND_MASK      WORD = 0x000F
-
-	BACKGROUND_BLUE      WORD = 0x0010
-	BACKGROUND_GREEN     WORD = 0x0020
-	BACKGROUND_RED       WORD = 0x0040
-	BACKGROUND_INTENSITY WORD = 0x0080
-	BACKGROUND_MASK      WORD = 0x00F0
-
-	COMMON_LVB_MASK          WORD = 0xFF00
-	COMMON_LVB_REVERSE_VIDEO WORD = 0x4000
-	COMMON_LVB_UNDERSCORE    WORD = 0x8000
+	FOREGROUND_BLUE      uint16 = 0x0001
+	FOREGROUND_GREEN     uint16 = 0x0002
+	FOREGROUND_RED       uint16 = 0x0004
+	FOREGROUND_INTENSITY uint16 = 0x0008
+	FOREGROUND_MASK      uint16 = 0x000F
+
+	BACKGROUND_BLUE      uint16 = 0x0010
+	BACKGROUND_GREEN     uint16 = 0x0020
+	BACKGROUND_RED       uint16 = 0x0040
+	BACKGROUND_INTENSITY uint16 = 0x0080
+	BACKGROUND_MASK      uint16 = 0x00F0
+
+	COMMON_LVB_MASK          uint16 = 0xFF00
+	COMMON_LVB_REVERSE_VIDEO uint16 = 0x4000
+	COMMON_LVB_UNDERSCORE    uint16 = 0x8000
 
 	// Input event types
 	// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683499(v=vs.85).aspx.
@@ -104,60 +104,53 @@ const (
 )
 
 // Windows API Console types
-// -- See https://msdn.microsoft.com/en-us/library/windows/desktop/aa383751(v=vs.85).aspx for core types (e.g., SHORT)
 // -- See https://msdn.microsoft.com/en-us/library/windows/desktop/ms682101(v=vs.85).aspx for Console specific types (e.g., COORD)
 // -- See https://msdn.microsoft.com/en-us/library/aa296569(v=vs.60).aspx for comments on alignment
 type (
-	SHORT int16
-	BOOL  int32
-	WORD  uint16
-	WCHAR uint16
-	DWORD uint32
-
 	CHAR_INFO struct {
-		UnicodeChar WCHAR
-		Attributes  WORD
+		UnicodeChar uint16
+		Attributes  uint16
 	}
 
 	CONSOLE_CURSOR_INFO struct {
-		Size    DWORD
-		Visible BOOL
+		Size    uint32
+		Visible int32
 	}
 
 	CONSOLE_SCREEN_BUFFER_INFO struct {
 		Size              COORD
 		CursorPosition    COORD
-		Attributes        WORD
+		Attributes        uint16
 		Window            SMALL_RECT
 		MaximumWindowSize COORD
 	}
 
 	COORD struct {
-		X SHORT
-		Y SHORT
+		X int16
+		Y int16
 	}
 
 	SMALL_RECT struct {
-		Left   SHORT
-		Top    SHORT
-		Right  SHORT
-		Bottom SHORT
+		Left   int16
+		Top    int16
+		Right  int16
+		Bottom int16
 	}
 
 	// INPUT_RECORD is a C/C++ union of which KEY_EVENT_RECORD is one case, it is also the largest
 	// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683499(v=vs.85).aspx.
 	INPUT_RECORD struct {
-		EventType WORD
+		EventType uint16
 		KeyEvent  KEY_EVENT_RECORD
 	}
 
 	KEY_EVENT_RECORD struct {
-		KeyDown         BOOL
-		RepeatCount     WORD
-		VirtualKeyCode  WORD
-		VirtualScanCode WORD
-		UnicodeChar     WCHAR
-		ControlKeyState DWORD
+		KeyDown         int32
+		RepeatCount     uint16
+		VirtualKeyCode  uint16
+		VirtualScanCode uint16
+		UnicodeChar     uint16
+		ControlKeyState uint32
 	}
 
 	WINDOW_BUFFER_SIZE struct {
@@ -165,12 +158,12 @@ type (
 	}
 )
 
-// boolToBOOL converts a Go bool into a Windows BOOL.
-func boolToBOOL(f bool) BOOL {
+// boolToBOOL converts a Go bool into a Windows int32.
+func boolToBOOL(f bool) int32 {
 	if f {
-		return BOOL(1)
+		return int32(1)
 	} else {
-		return BOOL(0)
+		return int32(0)
 	}
 }
 
@@ -242,7 +235,7 @@ func SetConsoleScreenBufferSize(handle uintptr, coord COORD) error {
 // SetConsoleTextAttribute sets the attributes of characters written to the
 // console screen buffer by the WriteFile or WriteConsole function.
 // See http://msdn.microsoft.com/en-us/library/windows/desktop/ms686047(v=vs.85).aspx.
-func SetConsoleTextAttribute(handle uintptr, attribute WORD) error {
+func SetConsoleTextAttribute(handle uintptr, attribute uint16) error {
 	r1, r2, err := setConsoleTextAttributeProc.Call(handle, uintptr(attribute), 0)
 	use(attribute)
 	return checkError(r1, r2, err)
@@ -280,7 +273,7 @@ func ReadConsoleInput(handle uintptr, buffer []INPUT_RECORD, count *uint32) erro
 // It returns true if the handle was signaled; false otherwise.
 // See https://msdn.microsoft.com/en-us/library/windows/desktop/ms687032(v=vs.85).aspx.
 func WaitForSingleObject(handle uintptr, msWait uint32) (bool, error) {
-	r1, _, err := waitForSingleObjectProc.Call(handle, uintptr(DWORD(msWait)))
+	r1, _, err := waitForSingleObjectProc.Call(handle, uintptr(uint32(msWait)))
 	switch r1 {
 	case WAIT_ABANDONED, WAIT_TIMEOUT:
 		return false, nil
@@ -320,8 +313,8 @@ func checkError(r1, r2 uintptr, err error) error {
 
 // coordToPointer converts a COORD into a uintptr (by fooling the type system).
 func coordToPointer(c COORD) uintptr {
-	// Note: This code assumes the two SHORTs are correctly laid out; the "cast" to DWORD is just to get a pointer to pass.
-	return uintptr(*((*DWORD)(unsafe.Pointer(&c))))
+	// Note: This code assumes the two SHORTs are correctly laid out; the "cast" to uint32 is just to get a pointer to pass.
+	return uintptr(*((*uint32)(unsafe.Pointer(&c))))
 }
 
 // use is a no-op, but the compiler cannot see that it is.
diff --git a/winterm/attr_translation.go b/winterm/attr_translation.go
index 94665db..cbec8f7 100644
--- a/winterm/attr_translation.go
+++ b/winterm/attr_translation.go
@@ -2,9 +2,7 @@
 
 package winterm
 
-import (
-	. "github.com/Azure/go-ansiterm"
-)
+import "github.com/Azure/go-ansiterm"
 
 const (
 	FOREGROUND_COLOR_MASK = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
@@ -13,83 +11,83 @@ const (
 
 // collectAnsiIntoWindowsAttributes modifies the passed Windows text mode flags to reflect the
 // request represented by the passed ANSI mode.
-func collectAnsiIntoWindowsAttributes(windowsMode WORD, inverted bool, baseMode WORD, ansiMode SHORT) (WORD, bool) {
+func collectAnsiIntoWindowsAttributes(windowsMode uint16, inverted bool, baseMode uint16, ansiMode int16) (uint16, bool) {
 	switch ansiMode {
 
 	// Mode styles
-	case ANSI_SGR_BOLD:
+	case ansiterm.ANSI_SGR_BOLD:
 		windowsMode = windowsMode | FOREGROUND_INTENSITY
 
-	case ANSI_SGR_DIM, ANSI_SGR_BOLD_DIM_OFF:
+	case ansiterm.ANSI_SGR_DIM, ansiterm.ANSI_SGR_BOLD_DIM_OFF:
 		windowsMode &^= FOREGROUND_INTENSITY
 
-	case ANSI_SGR_UNDERLINE:
+	case ansiterm.ANSI_SGR_UNDERLINE:
 		windowsMode = windowsMode | COMMON_LVB_UNDERSCORE
 
-	case ANSI_SGR_REVERSE:
+	case ansiterm.ANSI_SGR_REVERSE:
 		inverted = true
 
-	case ANSI_SGR_REVERSE_OFF:
+	case ansiterm.ANSI_SGR_REVERSE_OFF:
 		inverted = false
 
-	case ANSI_SGR_UNDERLINE_OFF:
+	case ansiterm.ANSI_SGR_UNDERLINE_OFF:
 		windowsMode &^= COMMON_LVB_UNDERSCORE
 
 		// Foreground colors
-	case ANSI_SGR_FOREGROUND_DEFAULT:
+	case ansiterm.ANSI_SGR_FOREGROUND_DEFAULT:
 		windowsMode = (windowsMode &^ FOREGROUND_MASK) | (baseMode & FOREGROUND_MASK)
 
-	case ANSI_SGR_FOREGROUND_BLACK:
+	case ansiterm.ANSI_SGR_FOREGROUND_BLACK:
 		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK)
 
-	case ANSI_SGR_FOREGROUND_RED:
+	case ansiterm.ANSI_SGR_FOREGROUND_RED:
 		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED
 
-	case ANSI_SGR_FOREGROUND_GREEN:
+	case ansiterm.ANSI_SGR_FOREGROUND_GREEN:
 		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN
 
-	case ANSI_SGR_FOREGROUND_YELLOW:
+	case ansiterm.ANSI_SGR_FOREGROUND_YELLOW:
 		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN
 
-	case ANSI_SGR_FOREGROUND_BLUE:
+	case ansiterm.ANSI_SGR_FOREGROUND_BLUE:
 		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_BLUE
 
-	case ANSI_SGR_FOREGROUND_MAGENTA:
+	case ansiterm.ANSI_SGR_FOREGROUND_MAGENTA:
 		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_BLUE
 
-	case ANSI_SGR_FOREGROUND_CYAN:
+	case ansiterm.ANSI_SGR_FOREGROUND_CYAN:
 		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN | FOREGROUND_BLUE
 
-	case ANSI_SGR_FOREGROUND_WHITE:
+	case ansiterm.ANSI_SGR_FOREGROUND_WHITE:
 		windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
 
 		// Background colors
-	case ANSI_SGR_BACKGROUND_DEFAULT:
+	case ansiterm.ANSI_SGR_BACKGROUND_DEFAULT:
 		// Black with no intensity
 		windowsMode = (windowsMode &^ BACKGROUND_MASK) | (baseMode & BACKGROUND_MASK)
 
-	case ANSI_SGR_BACKGROUND_BLACK:
+	case ansiterm.ANSI_SGR_BACKGROUND_BLACK:
 		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK)
 
-	case ANSI_SGR_BACKGROUND_RED:
+	case ansiterm.ANSI_SGR_BACKGROUND_RED:
 		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED
 
-	case ANSI_SGR_BACKGROUND_GREEN:
+	case ansiterm.ANSI_SGR_BACKGROUND_GREEN:
 		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN
 
-	case ANSI_SGR_BACKGROUND_YELLOW:
+	case ansiterm.ANSI_SGR_BACKGROUND_YELLOW:
 		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN
 
-	case ANSI_SGR_BACKGROUND_BLUE:
+	case ansiterm.ANSI_SGR_BACKGROUND_BLUE:
 		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_BLUE
 
-	case ANSI_SGR_BACKGROUND_MAGENTA:
+	case ansiterm.ANSI_SGR_BACKGROUND_MAGENTA:
 		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_BLUE
 
-	case ANSI_SGR_BACKGROUND_CYAN:
+	case ansiterm.ANSI_SGR_BACKGROUND_CYAN:
 		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN | BACKGROUND_BLUE
 
-	case ANSI_SGR_BACKGROUND_WHITE:
+	case ansiterm.ANSI_SGR_BACKGROUND_WHITE:
 		windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
 	}
 
@@ -97,6 +95,6 @@ func collectAnsiIntoWindowsAttributes(windowsMode WORD, inverted bool, baseMode
 }
 
 // invertAttributes inverts the foreground and background colors of a Windows attributes value
-func invertAttributes(windowsMode WORD) WORD {
+func invertAttributes(windowsMode uint16) uint16 {
 	return (COMMON_LVB_MASK & windowsMode) | ((FOREGROUND_MASK & windowsMode) << 4) | ((BACKGROUND_MASK & windowsMode) >> 4)
 }
diff --git a/winterm/cursor_helpers.go b/winterm/cursor_helpers.go
index e4b1c25..f015723 100644
--- a/winterm/cursor_helpers.go
+++ b/winterm/cursor_helpers.go
@@ -3,11 +3,11 @@
 package winterm
 
 const (
-	Horizontal = iota
-	Vertical
+	horizontal = iota
+	vertical
 )
 
-func (h *WindowsAnsiEventHandler) getCursorWindow(info *CONSOLE_SCREEN_BUFFER_INFO) SMALL_RECT {
+func (h *windowsAnsiEventHandler) getCursorWindow(info *CONSOLE_SCREEN_BUFFER_INFO) SMALL_RECT {
 	if h.originMode {
 		sr := h.effectiveSr(info.Window)
 		return SMALL_RECT{
@@ -27,7 +27,7 @@ func (h *WindowsAnsiEventHandler) getCursorWindow(info *CONSOLE_SCREEN_BUFFER_IN
 }
 
 // setCursorPosition sets the cursor to the specified position, bounded to the screen size
-func (h *WindowsAnsiEventHandler) setCursorPosition(position COORD, window SMALL_RECT) error {
+func (h *windowsAnsiEventHandler) setCursorPosition(position COORD, window SMALL_RECT) error {
 	position.X = ensureInRange(position.X, window.Left, window.Right)
 	position.Y = ensureInRange(position.Y, window.Top, window.Bottom)
 	err := SetConsoleCursorPosition(h.fd, position)
@@ -38,15 +38,15 @@ func (h *WindowsAnsiEventHandler) setCursorPosition(position COORD, window SMALL
 	return err
 }
 
-func (h *WindowsAnsiEventHandler) moveCursorVertical(param int) error {
-	return h.moveCursor(Vertical, param)
+func (h *windowsAnsiEventHandler) moveCursorVertical(param int) error {
+	return h.moveCursor(vertical, param)
 }
 
-func (h *WindowsAnsiEventHandler) moveCursorHorizontal(param int) error {
-	return h.moveCursor(Horizontal, param)
+func (h *windowsAnsiEventHandler) moveCursorHorizontal(param int) error {
+	return h.moveCursor(horizontal, param)
 }
 
-func (h *WindowsAnsiEventHandler) moveCursor(moveMode int, param int) error {
+func (h *windowsAnsiEventHandler) moveCursor(moveMode int, param int) error {
 	info, err := GetConsoleScreenBufferInfo(h.fd)
 	if err != nil {
 		return err
@@ -54,10 +54,10 @@ func (h *WindowsAnsiEventHandler) moveCursor(moveMode int, param int) error {
 
 	position := info.CursorPosition
 	switch moveMode {
-	case Horizontal:
-		position.X += SHORT(param)
-	case Vertical:
-		position.Y += SHORT(param)
+	case horizontal:
+		position.X += int16(param)
+	case vertical:
+		position.Y += int16(param)
 	}
 
 	if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
@@ -67,7 +67,7 @@ func (h *WindowsAnsiEventHandler) moveCursor(moveMode int, param int) error {
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) moveCursorLine(param int) error {
+func (h *windowsAnsiEventHandler) moveCursorLine(param int) error {
 	info, err := GetConsoleScreenBufferInfo(h.fd)
 	if err != nil {
 		return err
@@ -75,7 +75,7 @@ func (h *WindowsAnsiEventHandler) moveCursorLine(param int) error {
 
 	position := info.CursorPosition
 	position.X = 0
-	position.Y += SHORT(param)
+	position.Y += int16(param)
 
 	if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
 		return err
@@ -84,14 +84,14 @@ func (h *WindowsAnsiEventHandler) moveCursorLine(param int) error {
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) moveCursorColumn(param int) error {
+func (h *windowsAnsiEventHandler) moveCursorColumn(param int) error {
 	info, err := GetConsoleScreenBufferInfo(h.fd)
 	if err != nil {
 		return err
 	}
 
 	position := info.CursorPosition
-	position.X = SHORT(param) - 1
+	position.X = int16(param) - 1
 
 	if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
 		return err
diff --git a/winterm/erase_helpers.go b/winterm/erase_helpers.go
index f02a5b2..244b5fa 100644
--- a/winterm/erase_helpers.go
+++ b/winterm/erase_helpers.go
@@ -2,11 +2,9 @@
 
 package winterm
 
-import (
-	. "github.com/Azure/go-ansiterm"
-)
+import "github.com/Azure/go-ansiterm"
 
-func (h *WindowsAnsiEventHandler) clearRange(attributes WORD, fromCoord COORD, toCoord COORD) error {
+func (h *windowsAnsiEventHandler) clearRange(attributes uint16, fromCoord COORD, toCoord COORD) error {
 	// Ignore an invalid (negative area) request
 	if toCoord.Y < fromCoord.Y {
 		return nil
@@ -60,7 +58,7 @@ func (h *WindowsAnsiEventHandler) clearRange(attributes WORD, fromCoord COORD, t
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) clearRect(attributes WORD, fromCoord COORD, toCoord COORD) error {
+func (h *windowsAnsiEventHandler) clearRect(attributes uint16, fromCoord COORD, toCoord COORD) error {
 	region := SMALL_RECT{Top: fromCoord.Y, Left: fromCoord.X, Bottom: toCoord.Y, Right: toCoord.X}
 	width := toCoord.X - fromCoord.X + 1
 	height := toCoord.Y - fromCoord.Y + 1
@@ -72,7 +70,7 @@ func (h *WindowsAnsiEventHandler) clearRect(attributes WORD, fromCoord COORD, to
 
 	buffer := make([]CHAR_INFO, size)
 
-	char := CHAR_INFO{WCHAR(FILL_CHARACTER), attributes}
+	char := CHAR_INFO{ansiterm.FILL_CHARACTER, attributes}
 	for i := 0; i < int(size); i++ {
 		buffer[i] = char
 	}
diff --git a/winterm/scroll_helper.go b/winterm/scroll_helper.go
index ed19982..706d270 100644
--- a/winterm/scroll_helper.go
+++ b/winterm/scroll_helper.go
@@ -3,9 +3,9 @@
 package winterm
 
 // effectiveSr gets the current effective scroll region in buffer coordinates
-func (h *WindowsAnsiEventHandler) effectiveSr(window SMALL_RECT) scrollRegion {
-	top := AddInRange(window.Top, h.sr.top, window.Top, window.Bottom)
-	bottom := AddInRange(window.Top, h.sr.bottom, window.Top, window.Bottom)
+func (h *windowsAnsiEventHandler) effectiveSr(window SMALL_RECT) scrollRegion {
+	top := addInRange(window.Top, h.sr.top, window.Top, window.Bottom)
+	bottom := addInRange(window.Top, h.sr.bottom, window.Top, window.Bottom)
 	if top >= bottom {
 		top = window.Top
 		bottom = window.Bottom
@@ -13,7 +13,7 @@ func (h *WindowsAnsiEventHandler) effectiveSr(window SMALL_RECT) scrollRegion {
 	return scrollRegion{top: top, bottom: bottom}
 }
 
-func (h *WindowsAnsiEventHandler) scrollUp(param int) error {
+func (h *windowsAnsiEventHandler) scrollUp(param int) error {
 	info, err := GetConsoleScreenBufferInfo(h.fd)
 	if err != nil {
 		return err
@@ -23,11 +23,11 @@ func (h *WindowsAnsiEventHandler) scrollUp(param int) error {
 	return h.scroll(param, sr, info)
 }
 
-func (h *WindowsAnsiEventHandler) scrollDown(param int) error {
+func (h *windowsAnsiEventHandler) scrollDown(param int) error {
 	return h.scrollUp(-param)
 }
 
-func (h *WindowsAnsiEventHandler) deleteLines(param int) error {
+func (h *windowsAnsiEventHandler) deleteLines(param int) error {
 	info, err := GetConsoleScreenBufferInfo(h.fd)
 	if err != nil {
 		return err
@@ -44,12 +44,12 @@ func (h *WindowsAnsiEventHandler) deleteLines(param int) error {
 	}
 }
 
-func (h *WindowsAnsiEventHandler) insertLines(param int) error {
+func (h *windowsAnsiEventHandler) insertLines(param int) error {
 	return h.deleteLines(-param)
 }
 
 // scroll scrolls the provided scroll region by param lines. The scroll region is in buffer coordinates.
-func (h *WindowsAnsiEventHandler) scroll(param int, sr scrollRegion, info *CONSOLE_SCREEN_BUFFER_INFO) error {
+func (h *windowsAnsiEventHandler) scroll(param int, sr scrollRegion, info *CONSOLE_SCREEN_BUFFER_INFO) error {
 	logger.Infof("scroll: scrollTop: %d, scrollBottom: %d", sr.top, sr.bottom)
 	logger.Infof("scroll: windowTop: %d, windowBottom: %d", info.Window.Top, info.Window.Bottom)
 
@@ -64,7 +64,7 @@ func (h *WindowsAnsiEventHandler) scroll(param int, sr scrollRegion, info *CONSO
 	// Origin to which area should be copied
 	destOrigin := COORD{
 		X: 0,
-		Y: sr.top - SHORT(param),
+		Y: sr.top - int16(param),
 	}
 
 	char := CHAR_INFO{
@@ -78,7 +78,7 @@ func (h *WindowsAnsiEventHandler) scroll(param int, sr scrollRegion, info *CONSO
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) deleteCharacters(param int) error {
+func (h *windowsAnsiEventHandler) deleteCharacters(param int) error {
 	info, err := GetConsoleScreenBufferInfo(h.fd)
 	if err != nil {
 		return err
@@ -86,12 +86,12 @@ func (h *WindowsAnsiEventHandler) deleteCharacters(param int) error {
 	return h.scrollLine(param, info.CursorPosition, info)
 }
 
-func (h *WindowsAnsiEventHandler) insertCharacters(param int) error {
+func (h *windowsAnsiEventHandler) insertCharacters(param int) error {
 	return h.deleteCharacters(-param)
 }
 
 // scrollLine scrolls a line horizontally starting at the provided position by a number of columns.
-func (h *WindowsAnsiEventHandler) scrollLine(columns int, position COORD, info *CONSOLE_SCREEN_BUFFER_INFO) error {
+func (h *windowsAnsiEventHandler) scrollLine(columns int, position COORD, info *CONSOLE_SCREEN_BUFFER_INFO) error {
 	// Copy from and clip to the scroll region (full buffer width)
 	scrollRect := SMALL_RECT{
 		Top:    position.Y,
@@ -102,7 +102,7 @@ func (h *WindowsAnsiEventHandler) scrollLine(columns int, position COORD, info *
 
 	// Origin to which area should be copied
 	destOrigin := COORD{
-		X: position.X - SHORT(columns),
+		X: position.X - int16(columns),
 		Y: position.Y,
 	}
 
diff --git a/winterm/utilities.go b/winterm/utilities.go
index 2f963ff..afa7635 100644
--- a/winterm/utilities.go
+++ b/winterm/utilities.go
@@ -4,6 +4,6 @@ package winterm
 
 // AddInRange increments a value by the passed quantity while ensuring the values
 // always remain within the supplied min / max range.
-func AddInRange(n SHORT, increment SHORT, min SHORT, max SHORT) SHORT {
+func addInRange(n int16, increment int16, min int16, max int16) int16 {
 	return ensureInRange(n+increment, min, max)
 }
diff --git a/winterm/win_event_handler.go b/winterm/win_event_handler.go
index 2d492b3..4d858ed 100644
--- a/winterm/win_event_handler.go
+++ b/winterm/win_event_handler.go
@@ -8,19 +8,19 @@ import (
 	"os"
 	"strconv"
 
-	. "github.com/Azure/go-ansiterm"
+	"github.com/Azure/go-ansiterm"
 	"github.com/Sirupsen/logrus"
 )
 
 var logger *logrus.Logger
 
-type WindowsAnsiEventHandler struct {
+type windowsAnsiEventHandler struct {
 	fd             uintptr
 	file           *os.File
 	infoReset      *CONSOLE_SCREEN_BUFFER_INFO
 	sr             scrollRegion
 	buffer         bytes.Buffer
-	attributes     WORD
+	attributes     uint16
 	inverted       bool
 	wrapNext       bool
 	drewMarginByte bool
@@ -30,10 +30,10 @@ type WindowsAnsiEventHandler struct {
 	curPos         COORD
 }
 
-func CreateWinEventHandler(fd uintptr, file *os.File) AnsiEventHandler {
+func CreateWinEventHandler(fd uintptr, file *os.File) ansiterm.AnsiEventHandler {
 	logFile := ioutil.Discard
 
-	if isDebugEnv := os.Getenv(LogEnv); isDebugEnv == "1" {
+	if isDebugEnv := os.Getenv(ansiterm.LogEnv); isDebugEnv == "1" {
 		logFile, _ = os.Create("winEventHandler.log")
 	}
 
@@ -48,7 +48,7 @@ func CreateWinEventHandler(fd uintptr, file *os.File) AnsiEventHandler {
 		return nil
 	}
 
-	return &WindowsAnsiEventHandler{
+	return &windowsAnsiEventHandler{
 		fd:         fd,
 		file:       file,
 		infoReset:  infoReset,
@@ -57,8 +57,8 @@ func CreateWinEventHandler(fd uintptr, file *os.File) AnsiEventHandler {
 }
 
 type scrollRegion struct {
-	top    SHORT
-	bottom SHORT
+	top    int16
+	bottom int16
 }
 
 // simulateLF simulates a LF or CR+LF by scrolling if necessary to handle the
@@ -68,7 +68,7 @@ type scrollRegion struct {
 //
 // In the false case, the caller should ensure that a carriage return
 // and line feed are inserted or that the text is otherwise wrapped.
-func (h *WindowsAnsiEventHandler) simulateLF(includeCR bool) (bool, error) {
+func (h *windowsAnsiEventHandler) simulateLF(includeCR bool) (bool, error) {
 	if h.wrapNext {
 		if err := h.Flush(); err != nil {
 			return false, err
@@ -89,24 +89,25 @@ func (h *WindowsAnsiEventHandler) simulateLF(includeCR bool) (bool, error) {
 				h.updatePos(pos)
 			}
 			return false, nil
-		} else {
-			// A custom scroll region is active. Scroll the window manually to simulate
-			// the LF.
-			if err := h.Flush(); err != nil {
-				return false, err
-			}
-			logger.Info("Simulating LF inside scroll region")
-			if err := h.scrollUp(1); err != nil {
+		}
+
+		// A custom scroll region is active. Scroll the window manually to simulate
+		// the LF.
+		if err := h.Flush(); err != nil {
+			return false, err
+		}
+		logger.Info("Simulating LF inside scroll region")
+		if err := h.scrollUp(1); err != nil {
+			return false, err
+		}
+		if includeCR {
+			pos.X = 0
+			if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
 				return false, err
 			}
-			if includeCR {
-				pos.X = 0
-				if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
-					return false, err
-				}
-			}
-			return true, nil
 		}
+		return true, nil
+
 	} else if pos.Y < info.Window.Bottom {
 		// Let Windows handle the LF.
 		pos.Y++
@@ -133,7 +134,7 @@ func (h *WindowsAnsiEventHandler) simulateLF(includeCR bool) (bool, error) {
 }
 
 // executeLF executes a LF without a CR.
-func (h *WindowsAnsiEventHandler) executeLF() error {
+func (h *windowsAnsiEventHandler) executeLF() error {
 	handled, err := h.simulateLF(false)
 	if err != nil {
 		return err
@@ -145,7 +146,7 @@ func (h *WindowsAnsiEventHandler) executeLF() error {
 		if err != nil {
 			return err
 		}
-		h.buffer.WriteByte(ANSI_LINE_FEED)
+		h.buffer.WriteByte(ansiterm.ANSI_LINE_FEED)
 		if pos.X != 0 {
 			if err := h.Flush(); err != nil {
 				return err
@@ -159,7 +160,7 @@ func (h *WindowsAnsiEventHandler) executeLF() error {
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) Print(b byte) error {
+func (h *windowsAnsiEventHandler) Print(b byte) error {
 	if h.wrapNext {
 		h.buffer.WriteByte(h.marginByte)
 		h.clearWrap()
@@ -182,9 +183,9 @@ func (h *WindowsAnsiEventHandler) Print(b byte) error {
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) Execute(b byte) error {
+func (h *windowsAnsiEventHandler) Execute(b byte) error {
 	switch b {
-	case ANSI_TAB:
+	case ansiterm.ANSI_TAB:
 		logger.Info("Execute(TAB)")
 		// Move to the next tab stop, but preserve auto-wrap if already set.
 		if !h.wrapNext {
@@ -205,11 +206,11 @@ func (h *WindowsAnsiEventHandler) Execute(b byte) error {
 		}
 		return nil
 
-	case ANSI_BEL:
-		h.buffer.WriteByte(ANSI_BEL)
+	case ansiterm.ANSI_BEL:
+		h.buffer.WriteByte(ansiterm.ANSI_BEL)
 		return nil
 
-	case ANSI_BACKSPACE:
+	case ansiterm.ANSI_BACKSPACE:
 		if h.wrapNext {
 			if err := h.Flush(); err != nil {
 				return err
@@ -223,15 +224,15 @@ func (h *WindowsAnsiEventHandler) Execute(b byte) error {
 		if pos.X > 0 {
 			pos.X--
 			h.updatePos(pos)
-			h.buffer.WriteByte(ANSI_BACKSPACE)
+			h.buffer.WriteByte(ansiterm.ANSI_BACKSPACE)
 		}
 		return nil
 
-	case ANSI_VERTICAL_TAB, ANSI_FORM_FEED:
+	case ansiterm.ANSI_VERTICAL_TAB, ansiterm.ANSI_FORM_FEED:
 		// Treat as true LF.
 		return h.executeLF()
 
-	case ANSI_LINE_FEED:
+	case ansiterm.ANSI_LINE_FEED:
 		// Simulate a CR and LF for now since there is no way in go-ansiterm
 		// to tell if the LF should include CR (and more things break when it's
 		// missing than when it's incorrectly added).
@@ -239,9 +240,9 @@ func (h *WindowsAnsiEventHandler) Execute(b byte) error {
 		if handled || err != nil {
 			return err
 		}
-		return h.buffer.WriteByte(ANSI_LINE_FEED)
+		return h.buffer.WriteByte(ansiterm.ANSI_LINE_FEED)
 
-	case ANSI_CARRIAGE_RETURN:
+	case ansiterm.ANSI_CARRIAGE_RETURN:
 		if h.wrapNext {
 			if err := h.Flush(); err != nil {
 				return err
@@ -255,7 +256,7 @@ func (h *WindowsAnsiEventHandler) Execute(b byte) error {
 		if pos.X != 0 {
 			pos.X = 0
 			h.updatePos(pos)
-			h.buffer.WriteByte(ANSI_CARRIAGE_RETURN)
+			h.buffer.WriteByte(ansiterm.ANSI_CARRIAGE_RETURN)
 		}
 		return nil
 
@@ -264,7 +265,7 @@ func (h *WindowsAnsiEventHandler) Execute(b byte) error {
 	}
 }
 
-func (h *WindowsAnsiEventHandler) CUU(param int) error {
+func (h *windowsAnsiEventHandler) CUU(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -273,7 +274,7 @@ func (h *WindowsAnsiEventHandler) CUU(param int) error {
 	return h.moveCursorVertical(-param)
 }
 
-func (h *WindowsAnsiEventHandler) CUD(param int) error {
+func (h *windowsAnsiEventHandler) CUD(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -282,7 +283,7 @@ func (h *WindowsAnsiEventHandler) CUD(param int) error {
 	return h.moveCursorVertical(param)
 }
 
-func (h *WindowsAnsiEventHandler) CUF(param int) error {
+func (h *windowsAnsiEventHandler) CUF(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -291,7 +292,7 @@ func (h *WindowsAnsiEventHandler) CUF(param int) error {
 	return h.moveCursorHorizontal(param)
 }
 
-func (h *WindowsAnsiEventHandler) CUB(param int) error {
+func (h *windowsAnsiEventHandler) CUB(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -300,7 +301,7 @@ func (h *WindowsAnsiEventHandler) CUB(param int) error {
 	return h.moveCursorHorizontal(-param)
 }
 
-func (h *WindowsAnsiEventHandler) CNL(param int) error {
+func (h *windowsAnsiEventHandler) CNL(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -309,7 +310,7 @@ func (h *WindowsAnsiEventHandler) CNL(param int) error {
 	return h.moveCursorLine(param)
 }
 
-func (h *WindowsAnsiEventHandler) CPL(param int) error {
+func (h *windowsAnsiEventHandler) CPL(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -318,7 +319,7 @@ func (h *WindowsAnsiEventHandler) CPL(param int) error {
 	return h.moveCursorLine(-param)
 }
 
-func (h *WindowsAnsiEventHandler) CHA(param int) error {
+func (h *windowsAnsiEventHandler) CHA(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -327,7 +328,7 @@ func (h *WindowsAnsiEventHandler) CHA(param int) error {
 	return h.moveCursorColumn(param)
 }
 
-func (h *WindowsAnsiEventHandler) VPA(param int) error {
+func (h *windowsAnsiEventHandler) VPA(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -339,11 +340,11 @@ func (h *WindowsAnsiEventHandler) VPA(param int) error {
 	}
 	window := h.getCursorWindow(info)
 	position := info.CursorPosition
-	position.Y = window.Top + SHORT(param) - 1
+	position.Y = window.Top + int16(param) - 1
 	return h.setCursorPosition(position, window)
 }
 
-func (h *WindowsAnsiEventHandler) CUP(row int, col int) error {
+func (h *windowsAnsiEventHandler) CUP(row int, col int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -355,11 +356,11 @@ func (h *WindowsAnsiEventHandler) CUP(row int, col int) error {
 	}
 
 	window := h.getCursorWindow(info)
-	position := COORD{window.Left + SHORT(col) - 1, window.Top + SHORT(row) - 1}
+	position := COORD{window.Left + int16(col) - 1, window.Top + int16(row) - 1}
 	return h.setCursorPosition(position, window)
 }
 
-func (h *WindowsAnsiEventHandler) HVP(row int, col int) error {
+func (h *windowsAnsiEventHandler) HVP(row int, col int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -368,7 +369,7 @@ func (h *WindowsAnsiEventHandler) HVP(row int, col int) error {
 	return h.CUP(row, col)
 }
 
-func (h *WindowsAnsiEventHandler) DECTCEM(visible bool) error {
+func (h *windowsAnsiEventHandler) DECTCEM(visible bool) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -377,7 +378,7 @@ func (h *WindowsAnsiEventHandler) DECTCEM(visible bool) error {
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) DECOM(enable bool) error {
+func (h *windowsAnsiEventHandler) DECOM(enable bool) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -387,7 +388,7 @@ func (h *WindowsAnsiEventHandler) DECOM(enable bool) error {
 	return h.CUP(1, 1)
 }
 
-func (h *WindowsAnsiEventHandler) DECCOLM(use132 bool) error {
+func (h *windowsAnsiEventHandler) DECCOLM(use132 bool) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -400,7 +401,7 @@ func (h *WindowsAnsiEventHandler) DECCOLM(use132 bool) error {
 	if err != nil {
 		return err
 	}
-	targetWidth := SHORT(80)
+	targetWidth := int16(80)
 	if use132 {
 		targetWidth = 132
 	}
@@ -426,7 +427,7 @@ func (h *WindowsAnsiEventHandler) DECCOLM(use132 bool) error {
 	return SetConsoleCursorPosition(h.fd, COORD{0, 0})
 }
 
-func (h *WindowsAnsiEventHandler) ED(param int) error {
+func (h *windowsAnsiEventHandler) ED(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -485,7 +486,7 @@ func (h *WindowsAnsiEventHandler) ED(param int) error {
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) EL(param int) error {
+func (h *windowsAnsiEventHandler) EL(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -526,7 +527,7 @@ func (h *WindowsAnsiEventHandler) EL(param int) error {
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) IL(param int) error {
+func (h *windowsAnsiEventHandler) IL(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -535,7 +536,7 @@ func (h *WindowsAnsiEventHandler) IL(param int) error {
 	return h.insertLines(param)
 }
 
-func (h *WindowsAnsiEventHandler) DL(param int) error {
+func (h *windowsAnsiEventHandler) DL(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -544,7 +545,7 @@ func (h *WindowsAnsiEventHandler) DL(param int) error {
 	return h.deleteLines(param)
 }
 
-func (h *WindowsAnsiEventHandler) ICH(param int) error {
+func (h *windowsAnsiEventHandler) ICH(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -553,7 +554,7 @@ func (h *WindowsAnsiEventHandler) ICH(param int) error {
 	return h.insertCharacters(param)
 }
 
-func (h *WindowsAnsiEventHandler) DCH(param int) error {
+func (h *windowsAnsiEventHandler) DCH(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -562,7 +563,7 @@ func (h *WindowsAnsiEventHandler) DCH(param int) error {
 	return h.deleteCharacters(param)
 }
 
-func (h *WindowsAnsiEventHandler) SGR(params []int) error {
+func (h *windowsAnsiEventHandler) SGR(params []int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -579,13 +580,13 @@ func (h *WindowsAnsiEventHandler) SGR(params []int) error {
 	} else {
 		for _, attr := range params {
 
-			if attr == ANSI_SGR_RESET {
+			if attr == ansiterm.ANSI_SGR_RESET {
 				h.attributes = h.infoReset.Attributes
 				h.inverted = false
 				continue
 			}
 
-			h.attributes, h.inverted = collectAnsiIntoWindowsAttributes(h.attributes, h.inverted, h.infoReset.Attributes, SHORT(attr))
+			h.attributes, h.inverted = collectAnsiIntoWindowsAttributes(h.attributes, h.inverted, h.infoReset.Attributes, int16(attr))
 		}
 	}
 
@@ -601,7 +602,7 @@ func (h *WindowsAnsiEventHandler) SGR(params []int) error {
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) SU(param int) error {
+func (h *windowsAnsiEventHandler) SU(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -610,7 +611,7 @@ func (h *WindowsAnsiEventHandler) SU(param int) error {
 	return h.scrollUp(param)
 }
 
-func (h *WindowsAnsiEventHandler) SD(param int) error {
+func (h *windowsAnsiEventHandler) SD(param int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -619,29 +620,29 @@ func (h *WindowsAnsiEventHandler) SD(param int) error {
 	return h.scrollDown(param)
 }
 
-func (h *WindowsAnsiEventHandler) DA(params []string) error {
+func (h *windowsAnsiEventHandler) DA(params []string) error {
 	logger.Infof("DA: [%v]", params)
 	// DA cannot be implemented because it must send data on the VT100 input stream,
 	// which is not available to go-ansiterm.
 	return nil
 }
 
-func (h *WindowsAnsiEventHandler) DECSTBM(top int, bottom int) error {
+func (h *windowsAnsiEventHandler) DECSTBM(top int, bottom int) error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
 	logger.Infof("DECSTBM: [%d, %d]", top, bottom)
 
 	// Windows is 0 indexed, Linux is 1 indexed
-	h.sr.top = SHORT(top - 1)
-	h.sr.bottom = SHORT(bottom - 1)
+	h.sr.top = int16(top - 1)
+	h.sr.bottom = int16(bottom - 1)
 
 	// This command also moves the cursor to the origin.
 	h.clearWrap()
 	return h.CUP(1, 1)
 }
 
-func (h *WindowsAnsiEventHandler) RI() error {
+func (h *windowsAnsiEventHandler) RI() error {
 	if err := h.Flush(); err != nil {
 		return err
 	}
@@ -656,17 +657,17 @@ func (h *WindowsAnsiEventHandler) RI() error {
 	sr := h.effectiveSr(info.Window)
 	if info.CursorPosition.Y == sr.top {
 		return h.scrollDown(1)
-	} else {
-		return h.moveCursorVertical(-1)
 	}
+
+	return h.moveCursorVertical(-1)
 }
 
-func (h *WindowsAnsiEventHandler) IND() error {
+func (h *windowsAnsiEventHandler) IND() error {
 	logger.Info("IND: []")
 	return h.executeLF()
 }
 
-func (h *WindowsAnsiEventHandler) Flush() error {
+func (h *windowsAnsiEventHandler) Flush() error {
 	h.curInfo = nil
 	if h.buffer.Len() > 0 {
 		logger.Infof("Flush: [%s]", h.buffer.Bytes())
@@ -683,7 +684,7 @@ func (h *WindowsAnsiEventHandler) Flush() error {
 			return err
 		}
 
-		charInfo := []CHAR_INFO{{UnicodeChar: WCHAR(h.marginByte), Attributes: info.Attributes}}
+		charInfo := []CHAR_INFO{{UnicodeChar: uint16(h.marginByte), Attributes: info.Attributes}}
 		size := COORD{1, 1}
 		position := COORD{0, 0}
 		region := SMALL_RECT{Left: info.CursorPosition.X, Top: info.CursorPosition.Y, Right: info.CursorPosition.X, Bottom: info.CursorPosition.Y}
@@ -697,7 +698,7 @@ func (h *WindowsAnsiEventHandler) Flush() error {
 
 // cacheConsoleInfo ensures that the current console screen information has been queried
 // since the last call to Flush(). It must be called before accessing h.curInfo or h.curPos.
-func (h *WindowsAnsiEventHandler) getCurrentInfo() (COORD, *CONSOLE_SCREEN_BUFFER_INFO, error) {
+func (h *windowsAnsiEventHandler) getCurrentInfo() (COORD, *CONSOLE_SCREEN_BUFFER_INFO, error) {
 	if h.curInfo == nil {
 		info, err := GetConsoleScreenBufferInfo(h.fd)
 		if err != nil {
@@ -709,7 +710,7 @@ func (h *WindowsAnsiEventHandler) getCurrentInfo() (COORD, *CONSOLE_SCREEN_BUFFE
 	return h.curPos, h.curInfo, nil
 }
 
-func (h *WindowsAnsiEventHandler) updatePos(pos COORD) {
+func (h *windowsAnsiEventHandler) updatePos(pos COORD) {
 	if h.curInfo == nil {
 		panic("failed to call getCurrentInfo before calling updatePos")
 	}
@@ -719,7 +720,7 @@ func (h *WindowsAnsiEventHandler) updatePos(pos COORD) {
 // clearWrap clears the state where the cursor is in the margin
 // waiting for the next character before wrapping the line. This must
 // be done before most operations that act on the cursor.
-func (h *WindowsAnsiEventHandler) clearWrap() {
+func (h *windowsAnsiEventHandler) clearWrap() {
 	h.wrapNext = false
 	h.drewMarginByte = false
 }