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Merge pull request #503 from devlights/add-parse-funcs
2 parents 28dee80 + ea88a47 commit 056267a

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‎examples/basic/templates/README.md‎

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|txttmpl/with.go|templates\_text\_tmpl\_with|text/template の テンプレート仕様 における with のサンプルです.|
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|txttmpl/with.go|templates\_text\_tmpl\_define|text/template の テンプレート仕様 における define (独自テンプレートの定義) のサンプルです.|
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|txttmpl/with.go|templates\_text\_tmpl\_funcmap|text/template の テンプレート仕様 における funcmap (独自関数の定義) のサンプルです.|
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|txttmpl/parsefuncs/parsefs.go|templates\_parsefuncs\_parsefs|template.ParseFS() のサンプルです.|
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|txttmpl/parsefuncs/parsefiles.go|templates\_parsefuncs\_parsefiles|template.ParseFiles() のサンプルです.|
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|txttmpl/parsefuncs/parseglob.go|templates\_parsefuncs\_parseglob|template.ParseGlob() のサンプルです.|

‎examples/basic/templates/txttmpl/examples.go‎

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package txttmpl
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import "github.com/devlights/try-golang/mapping"
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import (
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"github.com/devlights/try-golang/examples/basic/templates/txttmpl/parsefuncs"
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"github.com/devlights/try-golang/mapping"
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)
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type (
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register struct{}
@@ -48,4 +51,6 @@ func (r *register) Regist(m mapping.ExampleMapping) {
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m["templates_text_tmpl_with"] = With
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m["templates_text_tmpl_define"] = Define
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m["templates_text_tmpl_funcmap"] = FuncMap
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parsefuncs.NewRegister().Regist(m)
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}

‎examples/basic/templates/txttmpl/parsefuncs/examples.go‎

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package parsefuncs
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import (
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"github.com/devlights/try-golang/mapping"
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)
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type (
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register struct{}
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)
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// NewRegister -- このパッケージ用のサンプルを登録する mapping.Register を生成します。
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func NewRegister() mapping.Register {
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return new(register)
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}
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// Regist -- 登録します.
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func (r *register) Regist(m mapping.ExampleMapping) {
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m["templates_parsefuncs_parsefs"] = ParseFS
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m["templates_parsefuncs_parsefiles"] = ParseFiles
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m["templates_parsefuncs_parseglob"] = ParseGlob
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}

‎examples/basic/templates/txttmpl/parsefuncs/parsefiles.go‎

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package parsefuncs
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import (
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"bytes"
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"io/fs"
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"os"
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"path/filepath"
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"text/template"
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"github.com/devlights/gomy/output"
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)
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// ParseFiles -- template.ParseFiles() のサンプルです。
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//
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// REFERENCES
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// - https://pkg.go.dev/text/template@latest#ParseFiles
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func ParseFiles() error {
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const (
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dir = "examples/basic/templates/txttmpl/parsefuncs/tmpls"
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)
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var (
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fSys = os.DirFS(dir)
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files []string
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err error
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)
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files, err = fs.Glob(fSys, "*.tmpl")
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if err != nil {
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return err
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}
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for i, f := range files {
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files[i] = filepath.Join(dir, f)
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}
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var (
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tmpl *template.Template
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buf bytes.Buffer
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)
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tmpl, err = template.ParseFiles(files...)
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if err != nil {
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return err
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}
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output.Stdoutl("[name ]", tmpl.Name())
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output.Stdoutl("[parse name ]", tmpl.ParseName)
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output.Stdoutl("[define tmpl]", tmpl.DefinedTemplates())
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output.StdoutHr()
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//
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// 複数のテンプレートが存在する場合 Execute の呼び出しは最初のテンプレートが処理される.
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// 最初のテンプレートとは tmpl.ParseName が返すテンプレートの値.
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//
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err = tmpl.Execute(&buf, "world")
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if err != nil {
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return err
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}
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output.Stdoutf("[tmpl - Execute ]", "%s\n", buf.String())
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output.StdoutHr()
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//
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// 特定のテンプレートを処理したい場合は、ExecuteTemplate を使う
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//
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for _, name := range []string{"hello.tmpl", "world.tmpl"} {
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buf.Reset()
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err = tmpl.ExecuteTemplate(&buf, name, "hello")
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if err != nil {
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return err
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}
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output.Stdoutf("[tmpl - ExecuteTemplate]", "%s\n", buf.String())
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output.StdoutHr()
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}
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//
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// または t.Templates() で各テンプレートが取得できるので、それで処理することもできる
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//
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for _, t := range tmpl.Templates() {
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buf.Reset()
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err = t.Execute(&buf, "hello")
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if err != nil {
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return err
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}
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output.Stdoutl("[name ]", t.Name())
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output.Stdoutl("[parse name ]", t.ParseName)
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output.Stdoutf("[tmpl ]", "%s\n", buf.String())
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output.StdoutHr()
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}
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return nil
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}

‎examples/basic/templates/txttmpl/parsefuncs/parsefs.go‎

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package parsefuncs
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import (
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"bytes"
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"os"
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"text/template"
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"github.com/devlights/gomy/output"
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)
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// ParseFS -- template.ParseFS() のサンプルです。
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//
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// REFERENCES
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// - https://pkg.go.dev/text/template@latest#ParseFS
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// - https://pkg.go.dev/io/fs@latest
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func ParseFS() error {
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const (
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dir = "examples/basic/templates/txttmpl/parsefuncs/tmpls"
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)
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var (
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fSys = os.DirFS(dir)
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tmpl *template.Template
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buf bytes.Buffer
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err error
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)
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tmpl, err = template.ParseFS(fSys, "hello.tmpl")
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if err != nil {
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return err
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}
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output.Stdoutl("[name ]", tmpl.Name())
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output.Stdoutl("[parse name ]", tmpl.ParseName)
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output.Stdoutl("[define tmpl]", tmpl.DefinedTemplates())
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output.StdoutHr()
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err = tmpl.Execute(&buf, "world")
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if err != nil {
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return err
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}
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output.Stdoutf("[tmpl]", "%s\n", buf.String())
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output.StdoutHr()
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return nil
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}

‎examples/basic/templates/txttmpl/parsefuncs/parseglob.go‎

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package parsefuncs
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import (
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"bytes"
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"path/filepath"
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"text/template"
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"github.com/devlights/gomy/output"
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)
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// ParseGlob -- template.ParseGlob() のサンプルです。
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//
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// REFERENCES
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// - https://pkg.go.dev/text/template@latest#ParseGlob
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func ParseGlob() error {
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const (
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dir = "examples/basic/templates/txttmpl/parsefuncs/tmpls"
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pat = "*.tmpl"
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)
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var (
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pattern = filepath.Join(dir, pat)
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tmpl *template.Template
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err error
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)
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output.Stdoutl("[pattern]", pattern)
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output.StdoutHr()
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tmpl, err = template.ParseGlob(pattern)
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if err != nil {
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return err
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}
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for _, t := range tmpl.Templates() {
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var (
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buf bytes.Buffer
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)
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err = t.Execute(&buf, "hello")
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if err != nil {
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return err
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}
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output.Stdoutl("[name ]", t.Name())
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output.Stdoutl("[parse name ]", t.ParseName)
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output.Stdoutf("[tmpl ]", "%s\n", buf.String())
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output.StdoutHr()
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}
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return nil
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}

‎examples/basic/templates/txttmpl/parsefuncs/tmpls/hello.tmpl‎

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[hello.tmpl] hello {{ . }}

‎examples/basic/templates/txttmpl/parsefuncs/tmpls/world.tmpl‎

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[world.tmpl] {{ . }} world

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