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// Copyright © 2013 Steve Francia <spf@spf13.com>.
//
// Licensed under the Simple Public 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://opensource.org/licenses/Simple-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 hugolib
import (
"bytes"
"html/template"
"reflect"
"strings"
"unicode"
"github.com/spf13/hugo/helpers"
jww "github.com/spf13/jwalterweatherman"
)
type ShortcodeFunc func([]string) string
type Shortcode struct {
Name string
Func ShortcodeFunc
}
type ShortcodeWithPage struct {
Params interface{}
Inner template.HTML
Page *Page
}
func (scp *ShortcodeWithPage) Get(key interface{}) interface{} {
if reflect.ValueOf(scp.Params).Len() == 0 {
return nil
}
var x reflect.Value
switch key.(type) {
case int64, int32, int16, int8, int:
if reflect.TypeOf(scp.Params).Kind() == reflect.Map {
return "error: cannot access named params by position"
} else if reflect.TypeOf(scp.Params).Kind() == reflect.Slice {
x = reflect.ValueOf(scp.Params).Index(int(reflect.ValueOf(key).Int()))
}
case string:
if reflect.TypeOf(scp.Params).Kind() == reflect.Map {
x = reflect.ValueOf(scp.Params).MapIndex(reflect.ValueOf(key))
if !x.IsValid() {
return ""
}
} else if reflect.TypeOf(scp.Params).Kind() == reflect.Slice {
if reflect.ValueOf(scp.Params).Len() == 1 && reflect.ValueOf(scp.Params).Index(0).String() == "" {
return nil
}
return "error: cannot access positional params by string name"
}
}
switch x.Kind() {
case reflect.String:
return x.String()
case reflect.Int64, reflect.Int32, reflect.Int16, reflect.Int8, reflect.Int:
return x.Int()
default:
return x
}
}
type Shortcodes map[string]ShortcodeFunc
func ShortcodesHandle(stringToParse string, p *Page, t Template) string {
leadStart := strings.Index(stringToParse, `{{%`)
if leadStart >= 0 {
leadEnd := strings.Index(stringToParse[leadStart:], `%}}`) + leadStart
if leadEnd > leadStart {
name, par := SplitParams(stringToParse[leadStart+3 : leadEnd])
tmpl := GetTemplate(name, t)
if tmpl == nil {
return stringToParse
}
params := Tokenize(par)
// Always look for closing tag.
endStart, endEnd := FindEnd(stringToParse[leadEnd:], name)
var data = &ShortcodeWithPage{Params: params, Page: p}
if endStart > 0 {
s := stringToParse[leadEnd+3 : leadEnd+endStart]
data.Inner = template.HTML(helpers.RenderBytes([]byte(CleanP(ShortcodesHandle(s, p, t))), p.guessMarkupType(), p.UniqueId()))
remainder := CleanP(stringToParse[leadEnd+endEnd:])
return CleanP(stringToParse[:leadStart]) +
ShortcodeRender(tmpl, data) +
CleanP(ShortcodesHandle(remainder, p, t))
}
return CleanP(stringToParse[:leadStart]) +
ShortcodeRender(tmpl, data) +
CleanP(ShortcodesHandle(stringToParse[leadEnd+3:], p,
t))
}
}
return stringToParse
}
// Clean up odd behavior when closing tag is on first line
// or opening tag is on the last line due to extra line in markdown file
func CleanP(str string) string {
if strings.HasSuffix(strings.TrimSpace(str), "<p>") {
idx := strings.LastIndex(str, "<p>")
str = str[:idx]
}
if strings.HasPrefix(strings.TrimSpace(str), "</p>") {
str = str[strings.Index(str, "</p>")+5:]
}
return str
}
func FindEnd(str string, name string) (int, int) {
var endPos int
var startPos int
var try []string
try = append(try, "{{% /"+name+" %}}")
try = append(try, "{{% /"+name+"%}}")
try = append(try, "{{%/"+name+"%}}")
try = append(try, "{{%/"+name+" %}}")
lowest := len(str)
for _, x := range try {
start := strings.Index(str, x)
if start < lowest && start > 0 {
startPos = start
endPos = startPos + len(x)
}
}
return startPos, endPos
}
func GetTemplate(name string, t Template) *template.Template {
if x := t.Lookup("shortcodes/" + name + ".html"); x != nil {
return x
}
if x := t.Lookup("theme/shortcodes/" + name + ".html"); x != nil {
return x
}
return t.Lookup("_internal/shortcodes/" + name + ".html")
}
func StripShortcodes(stringToParse string) string {
posStart := strings.Index(stringToParse, "{{%")
if posStart > 0 {
posEnd := strings.Index(stringToParse[posStart:], "%}}") + posStart
if posEnd > posStart {
newString := stringToParse[:posStart] + StripShortcodes(stringToParse[posEnd+3:])
return newString
}
}
return stringToParse
}
func CleanupSpacesAroundEquals(rawfirst []string) []string {
var first = make([]string, 0)
for i := 0; i < len(rawfirst); i++ {
v
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