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cloudkeys-go/vendor/github.com/flosch/pongo2/parser_document.go

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2015-07-30 15:43:22 +00:00
package pongo2
// Doc = { ( Filter | Tag | HTML ) }
func (p *Parser) parseDocElement() (INode, *Error) {
t := p.Current()
switch t.Typ {
case TokenHTML:
n := &nodeHTML{token: t}
left := p.PeekTypeN(-1, TokenSymbol)
right := p.PeekTypeN(1, TokenSymbol)
n.trimLeft = left != nil && left.TrimWhitespaces
n.trimRight = right != nil && right.TrimWhitespaces
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p.Consume() // consume HTML element
return n, nil
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case TokenSymbol:
switch t.Val {
case "{{":
// parse variable
variable, err := p.parseVariableElement()
if err != nil {
return nil, err
}
return variable, nil
case "{%":
// parse tag
tag, err := p.parseTagElement()
if err != nil {
return nil, err
}
return tag, nil
}
}
return nil, p.Error("Unexpected token (only HTML/tags/filters in templates allowed)", t)
}
func (tpl *Template) parse() *Error {
tpl.parser = newParser(tpl.name, tpl.tokens, tpl)
doc, err := tpl.parser.parseDocument()
if err != nil {
return err
}
tpl.root = doc
return nil
}
func (p *Parser) parseDocument() (*nodeDocument, *Error) {
doc := &nodeDocument{}
for p.Remaining() > 0 {
node, err := p.parseDocElement()
if err != nil {
return nil, err
}
doc.Nodes = append(doc.Nodes, node)
}
return doc, nil
}