func parseTemplates(tpl *template.Template) (err error) {
templatesToBeParsed := []string{tpl.Name()}
for len(templatesToBeParsed) != 0 {
name := templatesToBeParsed[0]
templatesToBeParsed = templatesToBeParsed[1:]
parsed := false
for _, t := range tpl.Templates() {
if tpl.Name() != name && t.Name() == name {
parsed = true
break
}
}
if !parsed {
content, err := readTemplate(name)
if err != nil {
return err
}
_, err = tpl.Parse(content)
check(err)
for _, matched := range templateKeyword.FindAllStringSubmatch(content, -1) {
templatesToBeParsed = append(templatesToBeParsed, matched[1])
}
}
}
return
}
func parseFiles(filenames ...string) (*template.Template, error) {
if len(filenames) == 0 {
// Not really a problem, but be consistent.
return nil, fmt.Errorf("template: no files named in call to ParseFiles")
}
var t *template.Template
for _, filename := range filenames {
b, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
s := string(b)
name := filepath.Base(filename)
var tmpl *template.Template
if t == nil {
t = template.New(name).Funcs(baseFuncs)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
_, err = tmpl.Parse(s)
if err != nil {
return nil, err
}
}
return t, nil
}
func LoadTemplates() (*template.Template, error) {
// Below is taken from http://golang.org/src/html/template/template.go
// because there is no way to get all the templates from the in-memory filesystem.
// We would like to use e.g. ParseFiles but that is hard-coded
// to use an actual filesystem; we cannot retarget it.
var t *template.Template
for _, filename := range filenames {
s, err := templates.FSString(false, filename)
if err != nil {
return nil, err
}
name := filepath.Base(filename)
// First template becomes return value if not already defined,
// and we use that one for subsequent New calls to associate
// all the templates together. Also, if this file has the same name
// as t, this file becomes the contents of t, so
// t, err := New(name).Funcs(xxx).ParseFiles(name)
// works. Otherwise we create a new template associated with t.
var tmpl *template.Template
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
_, err = tmpl.Parse(s)
if err != nil {
return nil, err
}
}
return t, nil
}
func parseTemplates(filenames ...string) (*template.Template, error) {
var t *template.Template
for _, filename := range filenames {
b, err := loadTemplate(filename)
if err != nil {
return nil, err
}
s := string(b)
name := filepath.Base(filename)
// First template becomes return value if not already defined,
// and we use that one for subsequent New calls to associate
// all the templates together. Also, if this file has the same name
// as t, this file becomes the contents of t, so
// t, err := New(name).Funcs(xxx).ParseFiles(name)
// works. Otherwise we create a new template associated with t.
var tmpl *template.Template
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
_, err = tmpl.Parse(s)
if err != nil {
return nil, err
}
}
return t, nil
}
func (t *BinTemplate) LoadDirectory(directory string) (*template.Template, error) {
var tmpl *template.Template
files, err := t.AssetDir(directory)
if err != nil {
return tmpl, err
}
for _, filePath := range files {
contents, err := t.Asset(directory + "/" + filePath)
if err != nil {
return tmpl, err
}
name := filepath.Base(filePath)
if tmpl == nil {
tmpl = template.New(name)
}
if name != tmpl.Name() {
tmpl = tmpl.New(name)
}
if _, err = tmpl.Parse(string(contents)); err != nil {
return tmpl, err
}
}
return tmpl, nil
}
func buildTemplate(dir string, funcMap template.FuncMap) (*template.Template, error) {
var t *template.Template
return t, filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
if !info.IsDir() {
filetext, err := ioutil.ReadFile(path)
if err != nil {
return err
}
text := string(filetext)
name := path[len(dir)+1:]
name = strings.Replace(name, `\`, `/`, -1)
var tmpl *template.Template
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
_, err = tmpl.Funcs(funcMap).Parse(text)
if err != nil {
return err
}
}
return nil
})
}
func parseFiles(filenames ...string) (*template.Template, error) {
var t *template.Template = nil
var err error = nil
if len(filenames) == 0 {
return nil, fmt.Errorf("html/template: no files named in call to ParseFiles")
}
sort.Strings(filenames)
for _, filename := range filenames {
if t == nil {
t = template.New(filename)
}
if filename != t.Name() {
t = t.New(filename)
}
_, err = t.Funcs(funcMap).Parse(templates[filename])
// anyone template syntax error throw panic
if err != nil {
panic(err)
}
}
return t, err
}
// applyBody
func applyBody(t *template.Template, names, bodies []string) (*template.Template, error) {
for i := 0; i < len(names); i++ {
name, body := names[i], bodies[i]
var tmpl *template.Template
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
if len(Template.Filters) > 0 {
tmpl = applyFilters(tmpl, Template.Filters...)
}
if Template.Delims.isValid() {
tmpl.Delims(Template.Delims.Get())
}
DebugPrintf("Parse as \"%s\"\n", name)
_, err := tmpl.Parse(body)
if err != nil {
return nil, err
}
}
return t, nil
}
func mkHttpHandler(h Handler, tpl *template.Template) http.HandlerFunc {
return func(rw http.ResponseWriter, req *http.Request) {
sess, err := getSess(req)
if err != nil {
req.Cookies()
log.Printf("Error while getting session: %s", err)
rw.Write([]byte("Unable to create a session. Try reloading the page or delete the cookies for this site."))
}
user := userFromSess(sess)
outdata, user := h(user, sess, req)
mail := ""
if user != nil {
mail = user.Email()
}
if err := sess.Save(req, rw); err != nil {
log.Printf("Error while saving session: %s", err)
}
if err := tpl.Execute(rw, &tpldata{mail, outdata}); err != nil {
log.Printf("Error executing template %s: %s", tpl.Name(), err)
}
}
}
// parseFiles is the helper for the method and function. If the argument
// template is nil, it is created from the first file.
func parseBindataFiles(filenames ...string) (*template.Template, error) {
var t *template.Template
if len(filenames) == 0 {
// Not really a problem, but be consistent.
return nil, fmt.Errorf("html/template: no files named in call to ParseFiles")
}
for _, filename := range filenames {
b, err := templates.Asset(filename)
if err != nil {
return nil, err
}
s := string(b)
name := filepath.Base(filename)
// First template becomes return value if not already defined,
// and we use that one for subsequent New calls to associate
// all the templates together. Also, if this file has the same name
// as t, this file becomes the contents of t, so
// t, err := New(name).Funcs(xxx).ParseFiles(name)
// works. Otherwise we create a new template associated with t.
var tmpl *template.Template
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
_, err = tmpl.Parse(s)
if err != nil {
return nil, err
}
}
return t, nil
}
func ShortcodeRender(tmpl *template.Template, data *ShortcodeWithPage) string {
buffer := new(bytes.Buffer)
err := tmpl.Execute(buffer, data)
if err != nil {
fmt.Println("error processing shortcode", tmpl.Name(), "\n ERR:", err)
}
return buffer.String()
}
func tplHandler(t *template.Template) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println("Handling", r.URL, "with template", t.Name())
if err := t.Execute(w, nil); err != nil {
log.Println(err)
http.Error(w, err.Error(), http.StatusInternalServerError)
}
})
}
// returns "" on error
func templateToString(t *template.Template, data interface{}) string {
var buf bytes.Buffer
err := t.Execute(&buf, data)
if err != nil {
logger.Errorf("Failed to execute template '%s', error: %s", t.Name(), err.Error())
return ""
}
return string(buf.Bytes())
}
// Render a named template name to the HTTP channel
func renderTemplate(w io.Writer, tmpl template.Template, context interface{}) {
log.Printf("Rendering %s", tmpl.Name())
err := tmpl.ExecuteTemplate(w, "base.html", context)
if err != nil {
log.Printf("ERROR: %s", err)
w.Write([]byte("Unable to render"))
return
}
}
func renderShortcodeWithPage(tmpl *template.Template, data *ShortcodeWithPage) string {
buffer := bp.GetBuffer()
defer bp.PutBuffer(buffer)
err := tmpl.Execute(buffer, data)
if err != nil {
jww.ERROR.Println("error processing shortcode", tmpl.Name(), "\n ERR:", err)
jww.WARN.Println(data)
}
return buffer.String()
}
func debugPrintLoadTemplate(tmpl *template.Template) {
if IsDebugging() {
var buf bytes.Buffer
for _, tmpl := range tmpl.Templates() {
buf.WriteString("\t- ")
buf.WriteString(tmpl.Name())
buf.WriteString("\n")
}
debugPrint("Loaded HTML Templates (%d): \n%s\n", len(tmpl.Templates()), buf.String())
}
}
// parsePageTemplate takes an empty template, finds the template
// Page file associated with the teamplate's name, and parses
// that file's content into the template.
func parsePageTemplate(tmpl *template.Template) (*template.Template, error) {
name := tmpl.Name()
fp := filepath.Join(findTemplateDirectory(), name+templatePageSuffix)
text, err := ioutil.ReadFile(fp)
if err != nil {
return nil, err
}
tmpl, err = tmpl.Parse(string(text))
if err != nil {
return nil, err
}
return tmpl, nil
}
func printTemplate(tpl *template.Template, max, level int) {
if level > max {
return
}
log.Printf("Printing template: %v @ %v", tpl.Name(), level)
for i, j := range tpl.Templates() {
log.Printf("TEMPLATE: %v=%v", i, j.Name())
}
for _, j := range tpl.Templates() {
printTemplate(j, max, level+1)
}
}
func parseTemplate(key string, content string) error {
// Old version uses filename as key, I make my own key. not
// filepath.Base(filename) First template becomes return value if
// not already defined, we use that one for subsequent New
// calls to associate all the templates together. Also, if this
// file has the same name as t, this file becomes the contents of
// t, so t, err := New(name).Funcs(xxx).ParseFiles(name)
// works. Otherwise we create a new template associated with t.
fmt.Println("\n\n--------------------------------------------------------------------------------")
fmt.Printf("[parse tempalte] parseTempalte(%s,<<%s>>);\n", key, content) //content) // REMOVE
engine := Engine
if engine.template == nil {
engine.template = template.New(key)
}
var tmpl *template.Template
// fmt.Println("0000000000000 > ", key, engine.template.Name())
if key == engine.template.Name() {
// fmt.Println(".... User old name, ", engine.template.Name())
tmpl = engine.template
} else {
// fmt.Println(".... New name, ", key)
tmpl = engine.template.New(key)
}
if true { // -------------------------- debug print templates.
fmt.Println("\ndebug info { // templates loop ; tmpl.name is : ", tmpl.Name())
for _, t := range engine.template.Templates() {
fmt.Println(" ", t.Name())
}
fmt.Println("}")
}
// newt, e := tmpl.Clone()
// if e != nil {
// panic(e)
// }
// _, err := newt.Parse(content)
_, err := tmpl.Parse(content)
// fmt.Printf("[parse tempalte] End parseTempalte(%s, << ignored >>);\n", key) // REMOVE
if err != nil {
// fmt.Println("[ERROR] : \t", err) // REMOVE
return err
}
engine.template = tmpl
return nil
}
func renderShortcodeWithPage(tmpl *template.Template, data *ShortcodeWithPage) string {
buffer := bp.GetBuffer()
defer bp.PutBuffer(buffer)
// TODO(bep) Refactor/rename this lock strategy
isInnerShortcodeCache.Lock()
defer isInnerShortcodeCache.Unlock()
err := tmpl.Execute(buffer, data)
if err != nil {
jww.ERROR.Println("error processing shortcode", tmpl.Name(), "\n ERR:", err)
jww.WARN.Println(data)
}
return buffer.String()
}
// to avoid potential costly look-aheads for closing tags we look inside the template itself
// we could change the syntax to self-closing tags, but that would make users cry
// the value found is cached
func isInnerShortcode(t *template.Template) bool {
isInnerShortcodeCache.RLock()
m, ok := isInnerShortcodeCache.m[t.Name()]
isInnerShortcodeCache.RUnlock()
if ok {
return m
}
isInnerShortcodeCache.Lock()
defer isInnerShortcodeCache.Unlock()
match, _ := regexp.MatchString("{{.*?\\.Inner.*?}}", t.Tree.Root.String())
isInnerShortcodeCache.m[t.Name()] = match
return match
}
func renderTemplate(w http.ResponseWriter, tmpl *template.Template, data interface{}) {
err := tmpl.Execute(w, data)
if err == nil {
return
}
switch err := err.(type) {
case *template.Error:
// An ExecError guarantees that Execute has not written to the underlying reader.
log.Printf("Error rendering template %s: %s", tmpl.Name(), err)
// TODO(ericchiang): replace with better internal server error.
http.Error(w, "Internal server error", http.StatusInternalServerError)
default:
// An error with the underlying write, such as the connection being
// dropped. Ignore for now.
}
}
// to avoid potential costly look-aheads for closing tags we look inside the template itself
// we could change the syntax to self-closing tags, but that would make users cry
// the value found is cached
func isInnerShortcode(t *template.Template) (bool, error) {
isInnerShortcodeCache.RLock()
m, ok := isInnerShortcodeCache.m[t.Name()]
isInnerShortcodeCache.RUnlock()
if ok {
return m, nil
}
isInnerShortcodeCache.Lock()
defer isInnerShortcodeCache.Unlock()
if t.Tree == nil {
return false, errors.New("Template failed to compile")
}
match, _ := regexp.MatchString("{{.*?\\.Inner.*?}}", t.Tree.Root.String())
isInnerShortcodeCache.m[t.Name()] = match
return match, nil
}
// parseFiles is the helper for the method and function. If the argument
// template is nil, it is created from the first file.
func parseFiles(t *template.Template, relativePath string, filenames ...string) (*template.Template, error) {
if len(filenames) == 0 {
// Not really a problem, but be consistent.
return nil, fmt.Errorf("html/template: no files named in call to ParseFiles")
}
for _, filename := range filenames {
b, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
s := string(b)
name := templateName(relativePath, filename)
// First template becomes return value if not already defined,
// and we use that one for subsequent New calls to associate
// all the templates together. Also, if this file has the same name
// as t, this file becomes the contents of t, so
// t, err := New(name).Funcs(xxx).ParseFiles(name)
// works. Otherwise we create a new template associated with t.
var tmpl *template.Template
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
if len(Template.Filters) > 0 {
tmpl = applyFilters(tmpl, Template.Filters...)
}
if Template.Delims.isValid() {
tmpl.Delims(Template.Delims.Get())
}
DebugPrintf("Parse as \"%s\"\n", name)
_, err = tmpl.Parse(s)
if err != nil {
return nil, err
}
}
return t, nil
}
// LoadTemplates loads named templates from resources.
// If the argument "t" is nil, it is created from the first resource.
func LoadTemplates(t *template.Template, filenames ...string) (*template.Template, error) {
if err := Initialize(); err != nil {
return nil, err
}
if len(filenames) == 0 {
// Not really a problem, but be consistent.
return nil, fmt.Errorf("no files named in call to LoadTemplates")
}
for _, filename := range filenames {
rsc := Get(filename)
if rsc == nil {
return nil, fmt.Errorf("can't find %s", filename)
}
rdr, err := rsc.Open()
if err != nil {
return nil, fmt.Errorf("can't open %s - %s", filename, err)
}
data, err := ioutil.ReadAll(rdr)
if err != nil {
return nil, err
}
var tmpl *template.Template
name := filepath.Base(filename)
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
_, err = tmpl.Parse(string(data))
if err != nil {
return nil, err
}
}
return t, nil
}
func parseFileWithName(parent *template.Template, name string, filepath string) error {
b, err := ioutil.ReadFile(filepath)
if err != nil {
return err
}
s := string(b)
// First template becomes return value if not already defined,
// and we use that one for subsequent New calls to associate
// all the templates together. Also, if this file has the same name
// as t, this file becomes the contents of t, so
// t, err := New(name).Funcs(xxx).ParseFiles(name)
// works. Otherwise we create a new template associated with t.
var tmpl *template.Template
if name == parent.Name() || name == "" {
tmpl = parent
} else {
tmpl = parent.New(name)
}
_, err = tmpl.Parse(s)
if err != nil {
return err
}
return nil
}
func parseTemplates(tpl *template.Template) (err error) {
templatesToBeParsed := []string{tpl.Name()}
for len(templatesToBeParsed) != 0 {
name := templatesToBeParsed[0]
templatesToBeParsed = templatesToBeParsed[1:]
parsed := false
for _, t := range tpl.Templates() {
if tpl.Name() != name && t.Name() == name {
parsed = true
break
}
}
if !parsed {
content, path, err := readTemplate(name)
if err != nil {
return err
}
if _, err = tpl.New(path).Parse(content); err != nil {
if strings.Contains(err.Error(), "redefinition of template") {
return fmt.Errorf("A redefinition error raised while parsing [%s]. Did you happen to put the HTML comments outside the {{define}} block?)", name)
}
return err
}
for _, matched := range templateKeyword.FindAllStringSubmatch(content, -1) {
templatesToBeParsed = append(templatesToBeParsed, matched[1])
}
}
}
return
}
func parseFiles(templateDir string, filenames ...string) (*template.Template, error) {
if len(filenames) == 0 {
return nil, fmt.Errorf("template: no files named in call to ParseFiles")
}
if templateDir[len(templateDir)-1] != '/' {
templateDir = filepath.Clean(templateDir) + "/"
}
var t *template.Template
for _, filename := range filenames {
b, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
s := string(b)
name := filename[len(templateDir):]
var tmpl *template.Template
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
_, err = tmpl.Parse(s)
if err != nil {
return nil, err
}
}
return t, nil
}
// parseEntries parses (as HTML templates) all bundle entries with
// names starting with the given prefix and ending with the given
// extension (suffix). Each template is given the name of the
// respective entry without the prefix. Returns the first template
// parsed. All other templates are associated with it. Panics on
// error.
func parseEntries(idx bundle.Index,
pref, ext string) *template.Template {
var tmpl *template.Template
for _, e := range idx.Dir(pref) {
if !strings.HasSuffix(e.Name, ext) {
continue
}
b, err := e.Decode(0)
if err != nil {
panic("parseEntries: " +
e.Name + ": " + err.Error())
}
s := string(b)
name := e.Name[len(pref):]
var t *template.Template
if tmpl == nil {
tmpl = template.New(name)
}
if name == tmpl.Name() {
t = tmpl
} else {
t = tmpl.New(name)
}
_, err = t.Parse(s)
if err != nil {
panic("parseEntries: " +
e.Name + ": " + err.Error())
}
}
if tmpl == nil {
panic("parseEntries: No entries to parse")
}
return tmpl
}
// Parse the contents of the template files and create an html.Template
func Parse() (*template.Template, error) {
var t *template.Template
for name, contents := range allTemplates {
var tmpl *template.Template
if t == nil {
t = template.New(name).Funcs(funcMap)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
_, err := tmpl.Parse(contents)
if err != nil {
return t, err
}
}
return t, nil
}
