seguims con los errores

core/errs/active.go

@@ -139,6 +139,21 @@ func UnwrapCause(err error) error {
 }
 
 
+func UnwrapCauses (err error) []error {
+	if err == nil {
+		return nil
+	}
+	if al,is := err.(Causers); is {
+		return al.Causes()
+	}
+	var l ErrorList
+	e := err
+	for e!= nil {
+		l = append(l,e)
+		e = Unwrap(e)
+	}
+	return l
+}
 
 
 func UnwrapList(err error) ErrorList {

core/errs/causer.go

@@ -32,7 +32,6 @@ type (
 		Cause () error
 	}
 
-
 	CauseFnc func () error
 )
 

core/errs/causers.go

@@ -0,0 +1,41 @@
+// ------------------------------------------------------------------------
+//   Project active2
+//   Active Thing (activething.com) git.activething.com/go
+//
+//   File name  causer.go
+//   Created by DEV
+//   Modified   20/03/2024
+//
+//   Copyright 2024 activething.com 
+// ------------------------------------------------------------------------
+// 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 errs
+
+
+
+type (
+
+	Causers 	interface {
+
+		Causes () []error
+	}
+
+	CausesFnc func () []error
+)
+
+
+func (f CausesFnc) Causes() []error {
+	return f() }
+

core/errs/erfmt/ftext/active.go

@@ -95,23 +95,23 @@ func DefaultFormatter () *ErrTextFormatter {
 			}),
 			WithSectionFormat(HeadSection, func (sec *SectionFormat) {
 				sec.BuildBefore = func (b fmts.Builder) {
-					b.AddString("**********************************************************")
+					b.AddText("**********************************************************")
 				}
 				sec.BuildAfter = sec.BuildBefore
 			}),
 			WithSectionFormat(CauseSection, func (sec *SectionFormat) {
 				sec.BuildBefore = func (b fmts.Builder) {
-					b.AddString("- Prev Cause ---------------")
+					b.AddText("- Prev Cause ---------------")
 				}
 			}),
 			WithSectionFormat(TraceSection, func (sec *SectionFormat) {
 				sec.BuildBefore = func(b fmts.Builder) {
-					b.AddString("--------------------------------------------------------")
-					b.AddString(" Stack Trace Information ")
-					b.AddString("--------------------------------------------------------")
+					b.AddText("--------------------------------------------------------")
+					b.AddText(" Stack Trace Information ")
+					b.AddText("--------------------------------------------------------")
 				}
 				sec.BuildAfter = func (b fmts.Builder) {
-					b.AddString("--------------------------------------------------------")
+					b.AddText("--------------------------------------------------------")
 				}
 
 			 */
@@ -145,6 +145,6 @@ func DefaultFrameBuilder (builder erfmt.Builder, frame stack.Frame, num int) {
 		if e == nil {
 			builder.AddString(c3.Sprintf("   %s\n", f))
 		} else {
-			//builder.AddString(c3.Sprintf("   error %s\n", e.Error()))
+			//builder.AddText(c3.Sprintf("   error %s\n", e.Error()))
 		}
 }

core/errs/err_fmt/builder.go

@@ -31,7 +31,7 @@ type (
 
 
 	Builder 	interface {
-		AddHead	(code, errType string)
+		AddHead	(errStr, errType string)
 
 		AddFieldString (name string, value string 	)
 		AddFieldInt    (name string, value int    	)
@@ -40,7 +40,7 @@ type (
 		AddFieldTime   (name string, value time.Time)
 		AddFieldDate   (name string, value time.Time)
 
-		AddString(str string)
+		AddText		   (str string)
 	}
 )
 

core/errs/err_fmt/builder_error_fallback.go

@@ -0,0 +1,44 @@
+// ------------------------------------------------------------------------
+//   Project active2
+//   Active Thing (activething.com) git.activething.com/go
+//
+//   File name  builder_fallback.go
+//   Created by DEV
+//   Modified   13/04/2024
+//
+//   Copyright 2024 activething.com 
+// ------------------------------------------------------------------------
+// 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 err_fmt
+
+import (
+	"fmt"
+	"reflect"
+)
+
+type (
+
+
+	BuilderErrorFallback func (err error) string
+
+)
+
+
+
+func MakeErrorFallback (message string) BuilderErrorFallback {
+	return func(err error) string {
+		return fmt.Sprintf(message,err,reflect.TypeOf(err).String())
+	}
+}

core/errs/err_fmt/fmx/active.go

@@ -0,0 +1,71 @@
+// ------------------------------------------------------------------------
+//   Project active2
+//   Active Thing (activething.com) git.activething.com/go
+//
+//   File name  active.go
+//   Created by DEV
+//   Modified   12/04/2024
+//
+//   Copyright 2024 activething.com 
+// ------------------------------------------------------------------------
+// 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 fmx
+
+import (
+	"ansi"
+	"errs/err_fmt"
+	"errs/stack"
+	"fmt"
+	"strings"
+)
+
+const (
+
+	fbBuildError  string = "Error building error format for type '%v'. Check formatter configuration or consider handling unsupported error types gracefully. Error: %s"
+	fbUnwrapError string = "Error building error from wrapped error. Encountered type '%v'. Consider handling this type explicitly or providing a generic fallback message. Error: %s"
+	fbCauseError  string = "Error formatting cause error. Encountered type '%v'. Review formatter logic for handling cause errors or provide a generic fallback message. Error: %s"
+
+)
+
+
+
+
+func defaultFrameBuilder(builder err_fmt.Builder, frame stack.Frame, num int) {
+	if strings.Index(frame.Package,"runtime") != -1 {
+		return
+	}
+	var c1, c2, c3, c4 ansi.Code
+	/*
+		if builder.Options().ShowAnsi(){
+			c1 = c1.SetFgColor(ansi.ColorBlue).SetBgColor(ansi.ColorHWhite)
+			c2 = c2.SetFgColor(ansi.ColorMagenta)
+			c3 = c3.SetFgColor(ansi.ColorWhite)
+			c4 = c3.SetStyle(ansi.StyleBold).SetFgColor(ansi.ColorHWhite)
+		}
+
+	*/
+	nm := c4.Sprintf(" %d ",num)
+	ln := c1.Sprintf(fmt.Sprintf("%-60s",fmt.Sprintf(" %s.%s", frame.Package, frame.FuncName)))
+	builder.AddText(fmt.Sprint(nm,ln))
+	builder.AddText(c2.Sprintf("   %.90s:%d", frame.File, frame.LineNumber))
+	f, e := frame.SourceLine()
+	if e == nil {
+		builder.AddText(c3.Sprintf("   %s\n", f))
+	} else {
+		//builder.AddText(c3.Sprintf("   error %s\n", e.Error()))
+	}
+}
+
+

core/errs/err_fmt/fmx/field_format.go

@@ -0,0 +1,51 @@
+// ------------------------------------------------------------------------
+//   Project active2
+//   Active Thing (activething.com) git.activething.com/go
+//
+//   File name  field_format.go
+//   Created by DEV
+//   Modified   04/04/2024
+//
+//   Copyright 2024 activething.com 
+// ------------------------------------------------------------------------
+// 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 fmx
+
+import (
+	"ansi"
+	"atypes/astrings"
+)
+
+type (
+
+	fieldFormat 	struct {
+		NameAnsi 	ansi.Code
+		ValueAnsi   ansi.Code
+		NameTrans   astrings.Transformers
+		ValueTrans  astrings.Transformers
+	}
+)
+
+
+func (f fieldFormat) clone() fieldFormat {
+	return fieldFormat{
+		NameAnsi:   f.NameAnsi,
+		ValueAnsi:  f.ValueAnsi,
+		NameTrans:  append(astrings.Transformers(nil),f.NameTrans...),
+		ValueTrans: append(astrings.Transformers(nil),f.ValueTrans...),
+	}
+}
+
+

core/errs/err_fmt/fmx/fmt.go

@@ -23,23 +23,75 @@
 
 package fmx
 
-
+import (
+	"atypes/astrings"
+	"errs/err_fmt"
+)
 
 type (
 
-	TextErrorFormatter 	struct {}
+	TextFmt 		struct {
+		options 	err_fmt.BuilderOption
+
+		vLayouts 	layouts
+		sections 	sections
+		defField 	fieldFormat
+		fields 		map[string]*fieldFormat
+
+		stringTrans astrings.Transformers
+
+		fbOnError ,
+		fbOnUnwrap,
+		fbOnCause 	err_fmt.BuilderErrorFallback
 
+		frameBuilder err_fmt.FrameBuilder
+	}
 
+	TextFmtFnc 		func(f *TextFmt)
 )
 
 
 
-func (f *TextErrorFormatter) Format (err error) []byte {
+func NewTextFmt (options ...TextFmtFnc) *TextFmt {
+	fm := &TextFmt{
+		options  : err_fmt.BuilderOption(0).SetDefaults(),
+
+		vLayouts : *newLayouts(),
+		sections : sections{},
+
+
+		fbOnError :   err_fmt.MakeErrorFallback(fbBuildError),
+		fbOnUnwrap:   err_fmt.MakeErrorFallback(fbUnwrapError),
+		fbOnCause :   err_fmt.MakeErrorFallback(fbUnwrapError),
+
+		frameBuilder: err_fmt.BuildFrameFnc(defaultFrameBuilder),
+	}
+	for _,o := range options {
+		o(fm)
+	}
+	return fm
+}
+
+
 
+func (f *TextFmt) Format (err error) []byte {
+	if err == nil {
+		return nil
+	}
 	st := &state{
 		f : f,
 	}
-	er :=
 
+	fe := st.writeError(err,f.options.ShowWrapped(),f.options.ShowCause(),f.options.ShowTrace(),0)
+	if fe == nil {
+		return st.b.Bytes()
+	}
+	st.reset()
+	if fe = st.writeError(fe,false,true,false,0); fe == nil{
+		return st.b.Bytes()
 	}
 
+	return []byte(f.fbOnError(err))
+}
+
+

core/errs/err_fmt/fmx/fmt_ops.go

@@ -0,0 +1,87 @@
+// ------------------------------------------------------------------------
+//   Project active2
+//   Active Thing (activething.com) git.activething.com/go
+//
+//   File name  fmt_ops.go
+//   Created by DEV
+//   Modified   13/04/2024
+//
+//   Copyright 2024 activething.com 
+// ------------------------------------------------------------------------
+// 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 fmx
+
+func WithLayout (name, layout string) TextFmtFnc {
+	return func(f *TextFmt) {
+		switch name {
+		case "time":
+			f.vLayouts.timeLayout = layout
+		case "date":
+			f.vLayouts.dateLayout = layout
+		case "int":
+			f.vLayouts.intLayout = layout
+		case "float":
+			f.vLayouts.floatLayout = layout
+		case "bool":
+			f.vLayouts.boolLayout = layout
+		}
+	}
+}
+
+/*
+
+func WithShowOptions (option erfmt.BuilderOption,enabled bool) FmtTextFnc {
+	return func(f *ErrTextFormatter) {
+		if enabled {
+			f.options |= option
+			return
+		}
+		f.options &^=option
+	}
+}
+
+
+func WithSectionFormat(id int, config func (s *SectionFormat)) FmtTextFnc {
+	if id < DefaultSection && id > TraceSection {
+		return func(_ *ErrTextFormatter){}
+	}
+	return func(f *ErrTextFormatter) {
+		config(&f.secs[id])
+	}
+}
+
+func WithFieldFormat(field string, config func(format *FieldFormat)) FmtTextFnc {
+	return func(f *ErrTextFormatter) {
+		if field == "" || field == "*" {
+			config(&f.defFieldFormat)
+			return
+		}
+		if f.fieldsFormat == nil {
+			f.fieldsFormat = make(map[string]FieldFormat)
+		}
+		fm := FieldFormat{}
+		config(&fm)
+		if strings.Index(field,",") == -1 {
+			f.fieldsFormat[field]=fm
+			return
+		}
+		for _,fn := range strings.SplitAfter(field,",") {
+			f.fieldsFormat[fn]=fm
+		}
+	}
+}
+
+
+ */

core/errs/err_fmt/fmx/layouts.go

@@ -0,0 +1,55 @@
+// ------------------------------------------------------------------------
+//   Project active2
+//   Active Thing (activething.com) git.activething.com/go
+//
+//   File name  layouts.go
+//   Created by DEV
+//   Modified   13/04/2024
+//
+//   Copyright 2024 activething.com 
+// ------------------------------------------------------------------------
+// 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 fmx
+
+import (
+	"time"
+)
+
+type (
+
+	layouts 		struct {
+		sep 		string
+		indent 		string
+		timeLayout 	string
+		dateLayout 	string
+		intLayout 	string
+		floatLayout string
+		boolLayout 	string
+	}
+)
+
+
+
+func newLayouts () *layouts {
+	return &layouts{
+		indent     	: " ",
+		sep   		: " : ",
+		timeLayout 	: time.RFC822Z,
+		dateLayout 	: time.RFC822Z,
+		intLayout  	: "%d",
+		floatLayout	: "%-10s: %.2f",
+	}
+}
+

core/errs/err_fmt/fmx/section_format.go

@@ -2,7 +2,7 @@
 //   Project active2
 //   Active Thing (activething.com) git.activething.com/go
 //
-//   File name  section.go
+//   File name  sectionFormat.go
 //   Created by DEV
 //   Modified   12/04/2024
 //
@@ -30,8 +30,8 @@ import (
 
 type (
 
-	section 	struct {
-		code 	ansi.Code
+	sectionFormat 	struct {
+		ansi 		ansi.Code
 
 		before		err_fmt.BuildFnc
 		after		err_fmt.BuildFnc
@@ -39,11 +39,11 @@ type (
 )
 
 
-func (s *section) doBefore (b err_fmt.Builder) {
+func (s *sectionFormat) doBefore (b err_fmt.Builder) {
 	if s != nil && s.before != nil {
 		s.before.Build(b) } }
 
 
-func (s *section) doAfter (b err_fmt.Builder) {
+func (s *sectionFormat) doAfter (b err_fmt.Builder) {
 	if s != nil && s.after != nil {
 		s.after.Build(b) } }

core/errs/err_fmt/fmx/sections.go

@@ -2,9 +2,9 @@
 //   Project active2
 //   Active Thing (activething.com) git.activething.com/go
 //
-//   File name  field.go
+//   File name  sections.go
 //   Created by DEV
-//   Modified   12/04/2024
+//   Modified   13/04/2024
 //
 //   Copyright 2024 activething.com 
 // ------------------------------------------------------------------------
@@ -24,14 +24,14 @@
 package fmx
 
 
-
 type (
 
-
-	field 	struct {
-		n 	string
-		v 	string
-		f
+	sections 	struct {
+		err,
+		head,
+		fields,
+		cause,
+		trace 	sectionFormat
 	}
 )
 

core/errs/err_fmt/fmx/state.go

@@ -24,39 +24,62 @@
 package fmx
 
 import (
+	"ansi"
 	"bytes"
 	"errors"
 	"errs/err_fmt"
 	"errs/stack"
+	"fmt"
 	"reflect"
 )
 
+const (
+
+	secHead 	uint8 = iota
+	secFields
+	secCause
+)
+
 type (
 
 
 	state 		struct {
-		f 		*TextErrorFormatter
+		f 		*TextFmt
 		b 		bytes.Buffer
 
-
-		secs    []*section
-		flds 	[]field
-		cses 	[]error
-		trace 	stack.Trace
+		fDone  	bool 	// se ha añadido la seccion de fields
+		curSec 	uint8   // actual seccion del formato
+		ansi   	ansi.Code
 	}
 )
 
 
-func newState (f *TextErrorFormatter) *state {
-	return &state {
-		f : f,
-	}
-}
+func newState (f *TextFmt) *state {
+	return &state { f : f }}
 
 
-func (s *state) format (err error, unwrapping bool) (fe error) {
+func (s *state) reset () *state {
+	s.curSec = 0
+	s.ansi = 0
+	s.b.Reset()
+	return s
+}
 
 
+func (s *state) writeError(err error, addUnwrap, addCause, addTrace bool, level int) (fe error) {
+
+	d := false
+	defer func(st *state, dn *bool, er *error){
+		if !(*dn) {
+			if rc := recover(); fe != nil {
+				ec,is := rc.(error)
+				if !is {
+					ec = fmt.Errorf("%#v",rc)
+				}
+				*er = *err_fmt.NewErrBuilderFormat(ec,reflect.TypeOf(er),true)
+			}
+		}
+	}(s,&d,&fe)
 
 	if fe,is := err.(err_fmt.Buildable); is {
 		fe.Build(s)
@@ -73,39 +96,165 @@ func (s *state) format (err error, unwrapping bool) (fe error) {
 			err_fmt.SetErrorTypeBuilder(rt,eb)
 		}
 	}
-	if unwrapping {
+	if addUnwrap {
 		return fe
 	}
 
+	s.writeUnwrap(err,level)
 
 
+	if addCause {
+		s.writeCause(err,level)
+	}
 
+	if addTrace {
+		s.writeTrace (err)
+	}
 
+	d = true
 	return nil
 }
 
 
 
-func (s *state) unwrapError (err error) {
+func (s *state) writeUnwrap(err error, level int) {
 	uw := errors.Unwrap(err)
 	for uw != nil {
-		if ue := s.format(uw,true); ue != nil {
+		if ue := s.writeError(uw,true,false,false, level); ue != nil {
+			// llamamos al fallback del formateador
+			s.AddText(s.f.fbOnUnwrap(uw))
+		}
+		uw = errors.Unwrap(uw)
+	}
+}
+
 
+func (s *state) writeCause(err error, level int ) {
+	if s.fDone {
+		s.fDone = false
+		s.f.sections.fields.doAfter(s)
+	}
+
+	nx := err
+	dn := false
+	for nx != nil {
+
+		if cs, is := err.(interface{ Cause() error }); is {
+			if ce := cs.Cause(); ce != nil {
+				if s.curSec == 1 {
+					s.curSec = 2
+					s.f.sections.cause.doBefore(s)
+					s.setAnsi(s.f.sections.cause.ansi)
+					dn = true
+				}
+				if fe := s.writeError(ce, false, true, false, level+1); fe != nil {
+					// llamamos al fallback del formateador
+					s.AddText(s.f.fbOnError(ce))
 				}
 			}
+			return
 		}
 
+		var lc []error
+		if cs, is := err.(interface{ Causes() []error }); is {
+			lc = cs.Causes()
+		} else if me, ok := err.(interface{ Unwrap() []error }); ok {
+			lc = me.Unwrap()
+		}
+		if len(lc) > 0 {
+			if s.curSec == 1 {
+				s.curSec = 2
+				s.setAnsi(s.f.sections.cause.ansi)
+				s.f.sections.cause.doBefore(s)
+				dn = true
+			}
+			for _, e := range lc {
+				if fe := s.writeError(e, false, false, false, level); fe != nil {
+					s.AddText(fmt.Sprintf(fbCauseError, reflect.TypeOf(e), fe.Error()))
+				}
+			}
+			return
+		}
 
+		nx = errors.Unwrap(nx)
+	}
 
+	if dn {
+		s.f.sections.cause.doAfter(s)
+	}
+}
 
 
+func (s *state) writeTrace(err error) {
+	if s.fDone {
+		s.fDone = false
+		s.f.sections.fields.doAfter(s)
+	}
 
+	tc := stack.UnwrapTrace(err,true)
+	if tc == nil {
+		return
+	}
 
+	s.f.sections.trace.doBefore(s)
+	s.setAnsi(s.f.sections.trace.ansi)
 
+	for n,f := range tc.Frames() {
+		s.f.frameBuilder.BuildFrame(s,f,n)
+	}
+	defer s.f.sections.trace.doAfter(s)
+}
 
 
 
+func (s *state) writeField(name, value string) {
+	if !s.fDone {
+		s.fDone = true
+		s.setAnsi(s.f.sections.fields.ansi)
+		s.f.sections.fields.doBefore(s)
+	}
 
+	var cv, cn ansi.Code
+
+	n := s.f.defField.NameTrans.Apply(name)
+	v := s.f.defField.ValueTrans.Apply(value)
+
+	if s.f.options.ShowAnsi() {
+		cn = s.f.defField.NameAnsi
+		cv = s.f.defField.ValueAnsi
+	}
+
+	if ff,hs := s.f.fields[name]; hs {
+		n = ff.NameTrans.Apply (n)
+		v = ff.ValueTrans.Apply(v)
+		if s.f.options.ShowAnsi() {
+			cn = ff.NameAnsi
+			cv = ff.ValueAnsi
+		}
+	}
+
+	s.b.WriteString(s.f.vLayouts.indent)
+	s.b.WriteString(cn.Sprint(n))
+	s.b.WriteString(cn.Sprint(s.f.vLayouts.sep))
+	s.b.WriteString(cv.Sprint(v))
+	s.b.WriteByte('\n')
+
+}
+
+
+func (s *state) writeString (str string) {
+	str = s.f.stringTrans.Apply(str)
+	s.b.WriteString(s.ansi.Sprintf(str))
+}
+
+
+
+
+func (s *state) setAnsi (ansi ansi.Code) {
+	if s.f.options.ShowAnsi() {
+		s.ansi = ansi
+	}
+}
 
 
 

core/errs/err_fmt/fmx/state_builder.go

@@ -0,0 +1,91 @@
+// ------------------------------------------------------------------------
+//   Project active2
+//   Active Thing (activething.com) git.activething.com/go
+//
+//   File name  state_builder.go
+//   Created by DEV
+//   Modified   12/04/2024
+//
+//   Copyright 2024 activething.com 
+// ------------------------------------------------------------------------
+// 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 fmx
+
+import (
+	"errs/err_fmt"
+	"fmt"
+	"time"
+)
+
+func (s *state) AddText(str string) {}
+
+func (s *state) AddHead(errStr, errType string) {
+	if s.curSec > 0 {
+		return
+	}
+	s.f.sections.head.doBefore(s)
+	s.curSec = 1
+	s.ansi = s.f.sections.head.ansi
+	s.writeField(err_fmt.FieldNameError,errStr)
+	s.writeField(err_fmt.FieldNameType ,errType)
+	s.f.sections.head.doAfter (s)
+}
+
+
+func (s *state) AddFieldString (name string, value string 	) {
+	if s.curSec != 1 {
+		return
+	}
+	s.writeField(name,value)
+}
+
+func (s *state) AddFieldInt    (name string, value int    	) {
+	if s.curSec != 1 {
+		return
+	}
+	s.writeField(name,fmt.Sprintf(s.f.vLayouts.intLayout,value))
+}
+
+func (s *state) AddFieldFloat  (name string, value float64	) {
+	if s.curSec != 1 {
+		return
+	}
+	s.writeField(name,fmt.Sprintf(s.f.vLayouts.floatLayout,value))
+}
+
+func (s *state) AddFieldBool   (name string, value bool     ) {
+	if s.curSec != 1 {
+		return
+	}
+	s.writeField(name,fmt.Sprintf(s.f.vLayouts.boolLayout,value))
+}
+
+func (s *state) AddFieldTime   (name string, value time.Time) {
+	if s.curSec != 1 {
+		return
+	}
+	s.writeField(name,value.Format(s.f.vLayouts.timeLayout))
+}
+
+func (s *state) AddFieldDate   (name string, value time.Time) {
+	if s.curSec != 1 {
+		return
+	}
+	s.writeField(name,value.Format(s.f.vLayouts.dateLayout))
+}
+
+
+
+

core/errs/err_fmt/txt/text_fmt_state.go

@@ -126,7 +126,7 @@ func (s *state) checkField (name string) bool {
 }
 
 
-func (s *state) AddString(str string) {}
+func (s *state) AddText(str string) {}
 
 
 
@@ -175,6 +175,7 @@ func (s *state) format (err error, level int, isWrapped, addWrap, addCause, addT
 					// añadimos un field fmt-(nombre del tipo de error) con el code
 					// o mensaje de error
 					rt := reflect.TypeOf(ne).String()
+					s.AddText(s.f.)
 					s.addField(fmt.Sprintf(err_fmt.fmtFieldFormatError,rt),fmt.Sprintf(err_fmt.fmtErrorFormatUnwrap,rt))
 				}
 			}

core/errs/err_multi.go

@@ -46,7 +46,10 @@ func (e ErrMulti) Error () string {
 
 
 func (e ErrMulti) Unwrap() []error {
-	return e.ErrorList.Clean() }
+	return e.ErrorList }
+
+func (e ErrMulti) Causes() []error {
+	return e.ErrorList }