Update to tengo v2 (#976)

1 files changed, 0 insertions, 930 deletions

diff --git a/vendor/github.com/d5/tengo/stdlib/text.go b/vendor/github.com/d5/tengo/stdlib/text.go
deleted file mode 100644
index 4b5729ec..00000000
--- a/vendor/github.com/d5/tengo/stdlib/text.go
+++ /dev/null
@@ -1,930 +0,0 @@
-package stdlib
-
-import (
-	"fmt"
-	"regexp"
-	"strconv"
-	"strings"
-	"unicode/utf8"
-
-	"github.com/d5/tengo"
-	"github.com/d5/tengo/objects"
-)
-
-var textModule = map[string]objects.Object{
-	"re_match":       &objects.UserFunction{Name: "re_match", Value: textREMatch},                           // re_match(pattern, text) => bool/error
-	"re_find":        &objects.UserFunction{Name: "re_find", Value: textREFind},                             // re_find(pattern, text, count) => [[{text:,begin:,end:}]]/undefined
-	"re_replace":     &objects.UserFunction{Name: "re_replace", Value: textREReplace},                       // re_replace(pattern, text, repl) => string/error
-	"re_split":       &objects.UserFunction{Name: "re_split", Value: textRESplit},                           // re_split(pattern, text, count) => [string]/error
-	"re_compile":     &objects.UserFunction{Name: "re_compile", Value: textRECompile},                       // re_compile(pattern) => Regexp/error
-	"compare":        &objects.UserFunction{Name: "compare", Value: FuncASSRI(strings.Compare)},             // compare(a, b) => int
-	"contains":       &objects.UserFunction{Name: "contains", Value: FuncASSRB(strings.Contains)},           // contains(s, substr) => bool
-	"contains_any":   &objects.UserFunction{Name: "contains_any", Value: FuncASSRB(strings.ContainsAny)},    // contains_any(s, chars) => bool
-	"count":          &objects.UserFunction{Name: "count", Value: FuncASSRI(strings.Count)},                 // count(s, substr) => int
-	"equal_fold":     &objects.UserFunction{Name: "equal_fold", Value: FuncASSRB(strings.EqualFold)},        // "equal_fold(s, t) => bool
-	"fields":         &objects.UserFunction{Name: "fields", Value: FuncASRSs(strings.Fields)},               // fields(s) => [string]
-	"has_prefix":     &objects.UserFunction{Name: "has_prefix", Value: FuncASSRB(strings.HasPrefix)},        // has_prefix(s, prefix) => bool
-	"has_suffix":     &objects.UserFunction{Name: "has_suffix", Value: FuncASSRB(strings.HasSuffix)},        // has_suffix(s, suffix) => bool
-	"index":          &objects.UserFunction{Name: "index", Value: FuncASSRI(strings.Index)},                 // index(s, substr) => int
-	"index_any":      &objects.UserFunction{Name: "index_any", Value: FuncASSRI(strings.IndexAny)},          // index_any(s, chars) => int
-	"join":           &objects.UserFunction{Name: "join", Value: textJoin},                                  // join(arr, sep) => string
-	"last_index":     &objects.UserFunction{Name: "last_index", Value: FuncASSRI(strings.LastIndex)},        // last_index(s, substr) => int
-	"last_index_any": &objects.UserFunction{Name: "last_index_any", Value: FuncASSRI(strings.LastIndexAny)}, // last_index_any(s, chars) => int
-	"repeat":         &objects.UserFunction{Name: "repeat", Value: textRepeat},                              // repeat(s, count) => string
-	"replace":        &objects.UserFunction{Name: "replace", Value: textReplace},                            // replace(s, old, new, n) => string
-	"substr":         &objects.UserFunction{Name: "substr", Value: textSubstring},                           // substr(s, lower, upper) => string
-	"split":          &objects.UserFunction{Name: "split", Value: FuncASSRSs(strings.Split)},                // split(s, sep) => [string]
-	"split_after":    &objects.UserFunction{Name: "split_after", Value: FuncASSRSs(strings.SplitAfter)},     // split_after(s, sep) => [string]
-	"split_after_n":  &objects.UserFunction{Name: "split_after_n", Value: FuncASSIRSs(strings.SplitAfterN)}, // split_after_n(s, sep, n) => [string]
-	"split_n":        &objects.UserFunction{Name: "split_n", Value: FuncASSIRSs(strings.SplitN)},            // split_n(s, sep, n) => [string]
-	"title":          &objects.UserFunction{Name: "title", Value: FuncASRS(strings.Title)},                  // title(s) => string
-	"to_lower":       &objects.UserFunction{Name: "to_lower", Value: FuncASRS(strings.ToLower)},             // to_lower(s) => string
-	"to_title":       &objects.UserFunction{Name: "to_title", Value: FuncASRS(strings.ToTitle)},             // to_title(s) => string
-	"to_upper":       &objects.UserFunction{Name: "to_upper", Value: FuncASRS(strings.ToUpper)},             // to_upper(s) => string
-	"pad_left":       &objects.UserFunction{Name: "pad_left", Value: textPadLeft},                           // pad_left(s, pad_len, pad_with) => string
-	"pad_right":      &objects.UserFunction{Name: "pad_right", Value: textPadRight},                         // pad_right(s, pad_len, pad_with) => string
-	"trim":           &objects.UserFunction{Name: "trim", Value: FuncASSRS(strings.Trim)},                   // trim(s, cutset) => string
-	"trim_left":      &objects.UserFunction{Name: "trim_left", Value: FuncASSRS(strings.TrimLeft)},          // trim_left(s, cutset) => string
-	"trim_prefix":    &objects.UserFunction{Name: "trim_prefix", Value: FuncASSRS(strings.TrimPrefix)},      // trim_prefix(s, prefix) => string
-	"trim_right":     &objects.UserFunction{Name: "trim_right", Value: FuncASSRS(strings.TrimRight)},        // trim_right(s, cutset) => string
-	"trim_space":     &objects.UserFunction{Name: "trim_space", Value: FuncASRS(strings.TrimSpace)},         // trim_space(s) => string
-	"trim_suffix":    &objects.UserFunction{Name: "trim_suffix", Value: FuncASSRS(strings.TrimSuffix)},      // trim_suffix(s, suffix) => string
-	"atoi":           &objects.UserFunction{Name: "atoi", Value: FuncASRIE(strconv.Atoi)},                   // atoi(str) => int/error
-	"format_bool":    &objects.UserFunction{Name: "format_bool", Value: textFormatBool},                     // format_bool(b) => string
-	"format_float":   &objects.UserFunction{Name: "format_float", Value: textFormatFloat},                   // format_float(f, fmt, prec, bits) => string
-	"format_int":     &objects.UserFunction{Name: "format_int", Value: textFormatInt},                       // format_int(i, base) => string
-	"itoa":           &objects.UserFunction{Name: "itoa", Value: FuncAIRS(strconv.Itoa)},                    // itoa(i) => string
-	"parse_bool":     &objects.UserFunction{Name: "parse_bool", Value: textParseBool},                       // parse_bool(str) => bool/error
-	"parse_float":    &objects.UserFunction{Name: "parse_float", Value: textParseFloat},                     // parse_float(str, bits) => float/error
-	"parse_int":      &objects.UserFunction{Name: "parse_int", Value: textParseInt},                         // parse_int(str, base, bits) => int/error
-	"quote":          &objects.UserFunction{Name: "quote", Value: FuncASRS(strconv.Quote)},                  // quote(str) => string
-	"unquote":        &objects.UserFunction{Name: "unquote", Value: FuncASRSE(strconv.Unquote)},             // unquote(str) => string/error
-}
-
-func textREMatch(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 2 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	s2, ok := objects.ToString(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "string(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	matched, err := regexp.MatchString(s1, s2)
-	if err != nil {
-		ret = wrapError(err)
-		return
-	}
-
-	if matched {
-		ret = objects.TrueValue
-	} else {
-		ret = objects.FalseValue
-	}
-
-	return
-}
-
-func textREFind(args ...objects.Object) (ret objects.Object, err error) {
-	numArgs := len(args)
-	if numArgs != 2 && numArgs != 3 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	re, err := regexp.Compile(s1)
-	if err != nil {
-		ret = wrapError(err)
-		return
-	}
-
-	s2, ok := objects.ToString(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "string(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	if numArgs < 3 {
-		m := re.FindStringSubmatchIndex(s2)
-		if m == nil {
-			ret = objects.UndefinedValue
-			return
-		}
-
-		arr := &objects.Array{}
-		for i := 0; i < len(m); i += 2 {
-			arr.Value = append(arr.Value, &objects.ImmutableMap{Value: map[string]objects.Object{
-				"text":  &objects.String{Value: s2[m[i]:m[i+1]]},
-				"begin": &objects.Int{Value: int64(m[i])},
-				"end":   &objects.Int{Value: int64(m[i+1])},
-			}})
-		}
-
-		ret = &objects.Array{Value: []objects.Object{arr}}
-
-		return
-	}
-
-	i3, ok := objects.ToInt(args[2])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "third",
-			Expected: "int(compatible)",
-			Found:    args[2].TypeName(),
-		}
-		return
-	}
-	m := re.FindAllStringSubmatchIndex(s2, i3)
-	if m == nil {
-		ret = objects.UndefinedValue
-		return
-	}
-
-	arr := &objects.Array{}
-	for _, m := range m {
-		subMatch := &objects.Array{}
-		for i := 0; i < len(m); i += 2 {
-			subMatch.Value = append(subMatch.Value, &objects.ImmutableMap{Value: map[string]objects.Object{
-				"text":  &objects.String{Value: s2[m[i]:m[i+1]]},
-				"begin": &objects.Int{Value: int64(m[i])},
-				"end":   &objects.Int{Value: int64(m[i+1])},
-			}})
-		}
-
-		arr.Value = append(arr.Value, subMatch)
-	}
-
-	ret = arr
-
-	return
-}
-
-func textREReplace(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 3 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	s2, ok := objects.ToString(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "string(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	s3, ok := objects.ToString(args[2])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "third",
-			Expected: "string(compatible)",
-			Found:    args[2].TypeName(),
-		}
-		return
-	}
-
-	re, err := regexp.Compile(s1)
-	if err != nil {
-		ret = wrapError(err)
-	} else {
-		s, ok := doTextRegexpReplace(re, s2, s3)
-		if !ok {
-			return nil, objects.ErrStringLimit
-		}
-
-		ret = &objects.String{Value: s}
-	}
-
-	return
-}
-
-func textRESplit(args ...objects.Object) (ret objects.Object, err error) {
-	numArgs := len(args)
-	if numArgs != 2 && numArgs != 3 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	s2, ok := objects.ToString(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "string(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	var i3 = -1
-	if numArgs > 2 {
-		i3, ok = objects.ToInt(args[2])
-		if !ok {
-			err = objects.ErrInvalidArgumentType{
-				Name:     "third",
-				Expected: "int(compatible)",
-				Found:    args[2].TypeName(),
-			}
-			return
-		}
-	}
-
-	re, err := regexp.Compile(s1)
-	if err != nil {
-		ret = wrapError(err)
-		return
-	}
-
-	arr := &objects.Array{}
-	for _, s := range re.Split(s2, i3) {
-		arr.Value = append(arr.Value, &objects.String{Value: s})
-	}
-
-	ret = arr
-
-	return
-}
-
-func textRECompile(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 1 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	re, err := regexp.Compile(s1)
-	if err != nil {
-		ret = wrapError(err)
-	} else {
-		ret = makeTextRegexp(re)
-	}
-
-	return
-}
-
-func textReplace(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 4 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	s2, ok := objects.ToString(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "string(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	s3, ok := objects.ToString(args[2])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "third",
-			Expected: "string(compatible)",
-			Found:    args[2].TypeName(),
-		}
-		return
-	}
-
-	i4, ok := objects.ToInt(args[3])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "fourth",
-			Expected: "int(compatible)",
-			Found:    args[3].TypeName(),
-		}
-		return
-	}
-
-	s, ok := doTextReplace(s1, s2, s3, i4)
-	if !ok {
-		err = objects.ErrStringLimit
-		return
-	}
-
-	ret = &objects.String{Value: s}
-
-	return
-}
-
-func textSubstring(args ...objects.Object) (ret objects.Object, err error) {
-	argslen := len(args)
-	if argslen != 2 && argslen != 3 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	i2, ok := objects.ToInt(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "int(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	strlen := len(s1)
-	i3 := strlen
-	if argslen == 3 {
-		i3, ok = objects.ToInt(args[2])
-		if !ok {
-			err = objects.ErrInvalidArgumentType{
-				Name:     "third",
-				Expected: "int(compatible)",
-				Found:    args[2].TypeName(),
-			}
-			return
-		}
-	}
-
-	if i2 > i3 {
-		err = objects.ErrInvalidIndexType
-		return
-	}
-
-	if i2 < 0 {
-		i2 = 0
-	} else if i2 > strlen {
-		i2 = strlen
-	}
-
-	if i3 < 0 {
-		i3 = 0
-	} else if i3 > strlen {
-		i3 = strlen
-	}
-
-	ret = &objects.String{Value: s1[i2:i3]}
-
-	return
-}
-
-func textPadLeft(args ...objects.Object) (ret objects.Object, err error) {
-	argslen := len(args)
-	if argslen != 2 && argslen != 3 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	i2, ok := objects.ToInt(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "int(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	if i2 > tengo.MaxStringLen {
-		return nil, objects.ErrStringLimit
-	}
-
-	sLen := len(s1)
-	if sLen >= i2 {
-		ret = &objects.String{Value: s1}
-		return
-	}
-
-	s3 := " "
-	if argslen == 3 {
-		s3, ok = objects.ToString(args[2])
-		if !ok {
-			err = objects.ErrInvalidArgumentType{
-				Name:     "third",
-				Expected: "string(compatible)",
-				Found:    args[2].TypeName(),
-			}
-			return
-		}
-	}
-
-	padStrLen := len(s3)
-	if padStrLen == 0 {
-		ret = &objects.String{Value: s1}
-		return
-	}
-
-	padCount := ((i2 - padStrLen) / padStrLen) + 1
-	retStr := strings.Repeat(s3, int(padCount)) + s1
-	ret = &objects.String{Value: retStr[len(retStr)-i2:]}
-
-	return
-}
-
-func textPadRight(args ...objects.Object) (ret objects.Object, err error) {
-	argslen := len(args)
-	if argslen != 2 && argslen != 3 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	i2, ok := objects.ToInt(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "int(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	if i2 > tengo.MaxStringLen {
-		return nil, objects.ErrStringLimit
-	}
-
-	sLen := len(s1)
-	if sLen >= i2 {
-		ret = &objects.String{Value: s1}
-		return
-	}
-
-	s3 := " "
-	if argslen == 3 {
-		s3, ok = objects.ToString(args[2])
-		if !ok {
-			err = objects.ErrInvalidArgumentType{
-				Name:     "third",
-				Expected: "string(compatible)",
-				Found:    args[2].TypeName(),
-			}
-			return
-		}
-	}
-
-	padStrLen := len(s3)
-	if padStrLen == 0 {
-		ret = &objects.String{Value: s1}
-		return
-	}
-
-	padCount := ((i2 - padStrLen) / padStrLen) + 1
-	retStr := s1 + strings.Repeat(s3, int(padCount))
-	ret = &objects.String{Value: retStr[:i2]}
-
-	return
-}
-
-func textRepeat(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 2 {
-		return nil, objects.ErrWrongNumArguments
-	}
-
-	s1, ok := objects.ToString(args[0])
-	if !ok {
-		return nil, objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string(compatible)",
-			Found:    args[0].TypeName(),
-		}
-	}
-
-	i2, ok := objects.ToInt(args[1])
-	if !ok {
-		return nil, objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "int(compatible)",
-			Found:    args[1].TypeName(),
-		}
-	}
-
-	if len(s1)*i2 > tengo.MaxStringLen {
-		return nil, objects.ErrStringLimit
-	}
-
-	return &objects.String{Value: strings.Repeat(s1, i2)}, nil
-}
-
-func textJoin(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 2 {
-		return nil, objects.ErrWrongNumArguments
-	}
-
-	var slen int
-	var ss1 []string
-	switch arg0 := args[0].(type) {
-	case *objects.Array:
-		for idx, a := range arg0.Value {
-			as, ok := objects.ToString(a)
-			if !ok {
-				return nil, objects.ErrInvalidArgumentType{
-					Name:     fmt.Sprintf("first[%d]", idx),
-					Expected: "string(compatible)",
-					Found:    a.TypeName(),
-				}
-			}
-			slen += len(as)
-			ss1 = append(ss1, as)
-		}
-	case *objects.ImmutableArray:
-		for idx, a := range arg0.Value {
-			as, ok := objects.ToString(a)
-			if !ok {
-				return nil, objects.ErrInvalidArgumentType{
-					Name:     fmt.Sprintf("first[%d]", idx),
-					Expected: "string(compatible)",
-					Found:    a.TypeName(),
-				}
-			}
-			slen += len(as)
-			ss1 = append(ss1, as)
-		}
-	default:
-		return nil, objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "array",
-			Found:    args[0].TypeName(),
-		}
-	}
-
-	s2, ok := objects.ToString(args[1])
-	if !ok {
-		return nil, objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "string(compatible)",
-			Found:    args[1].TypeName(),
-		}
-	}
-
-	// make sure output length does not exceed the limit
-	if slen+len(s2)*(len(ss1)-1) > tengo.MaxStringLen {
-		return nil, objects.ErrStringLimit
-	}
-
-	return &objects.String{Value: strings.Join(ss1, s2)}, nil
-}
-
-func textFormatBool(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 1 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	b1, ok := args[0].(*objects.Bool)
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "bool",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	if b1 == objects.TrueValue {
-		ret = &objects.String{Value: "true"}
-	} else {
-		ret = &objects.String{Value: "false"}
-	}
-
-	return
-}
-
-func textFormatFloat(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 4 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	f1, ok := args[0].(*objects.Float)
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "float",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	s2, ok := objects.ToString(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "string(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	i3, ok := objects.ToInt(args[2])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "third",
-			Expected: "int(compatible)",
-			Found:    args[2].TypeName(),
-		}
-		return
-	}
-
-	i4, ok := objects.ToInt(args[3])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "fourth",
-			Expected: "int(compatible)",
-			Found:    args[3].TypeName(),
-		}
-		return
-	}
-
-	ret = &objects.String{Value: strconv.FormatFloat(f1.Value, s2[0], i3, i4)}
-
-	return
-}
-
-func textFormatInt(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 2 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	i1, ok := args[0].(*objects.Int)
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "int",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	i2, ok := objects.ToInt(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "int(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	ret = &objects.String{Value: strconv.FormatInt(i1.Value, i2)}
-
-	return
-}
-
-func textParseBool(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 1 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := args[0].(*objects.String)
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	parsed, err := strconv.ParseBool(s1.Value)
-	if err != nil {
-		ret = wrapError(err)
-		return
-	}
-
-	if parsed {
-		ret = objects.TrueValue
-	} else {
-		ret = objects.FalseValue
-	}
-
-	return
-}
-
-func textParseFloat(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 2 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := args[0].(*objects.String)
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	i2, ok := objects.ToInt(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "int(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	parsed, err := strconv.ParseFloat(s1.Value, i2)
-	if err != nil {
-		ret = wrapError(err)
-		return
-	}
-
-	ret = &objects.Float{Value: parsed}
-
-	return
-}
-
-func textParseInt(args ...objects.Object) (ret objects.Object, err error) {
-	if len(args) != 3 {
-		err = objects.ErrWrongNumArguments
-		return
-	}
-
-	s1, ok := args[0].(*objects.String)
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "first",
-			Expected: "string",
-			Found:    args[0].TypeName(),
-		}
-		return
-	}
-
-	i2, ok := objects.ToInt(args[1])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "second",
-			Expected: "int(compatible)",
-			Found:    args[1].TypeName(),
-		}
-		return
-	}
-
-	i3, ok := objects.ToInt(args[2])
-	if !ok {
-		err = objects.ErrInvalidArgumentType{
-			Name:     "third",
-			Expected: "int(compatible)",
-			Found:    args[2].TypeName(),
-		}
-		return
-	}
-
-	parsed, err := strconv.ParseInt(s1.Value, i2, i3)
-	if err != nil {
-		ret = wrapError(err)
-		return
-	}
-
-	ret = &objects.Int{Value: parsed}
-
-	return
-}
-
-// Modified implementation of strings.Replace
-// to limit the maximum length of output string.
-func doTextReplace(s, old, new string, n int) (string, bool) {
-	if old == new || n == 0 {
-		return s, true // avoid allocation
-	}
-
-	// Compute number of replacements.
-	if m := strings.Count(s, old); m == 0 {
-		return s, true // avoid allocation
-	} else if n < 0 || m < n {
-		n = m
-	}
-
-	// Apply replacements to buffer.
-	t := make([]byte, len(s)+n*(len(new)-len(old)))
-	w := 0
-	start := 0
-	for i := 0; i < n; i++ {
-		j := start
-		if len(old) == 0 {
-			if i > 0 {
-				_, wid := utf8.DecodeRuneInString(s[start:])
-				j += wid
-			}
-		} else {
-			j += strings.Index(s[start:], old)
-		}
-
-		ssj := s[start:j]
-		if w+len(ssj)+len(new) > tengo.MaxStringLen {
-			return "", false
-		}
-
-		w += copy(t[w:], ssj)
-		w += copy(t[w:], new)
-		start = j + len(old)
-	}
-
-	ss := s[start:]
-	if w+len(ss) > tengo.MaxStringLen {
-		return "", false
-	}
-
-	w += copy(t[w:], ss)
-
-	return string(t[0:w]), true
-}