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templatetag.go
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/
templatetag.go
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package statements
import (
"fmt"
"github.com/aisbergg/gonja/pkg/gonja/errors"
"github.com/aisbergg/gonja/pkg/gonja/exec"
"github.com/aisbergg/gonja/pkg/gonja/parse"
)
type TemplateTagStmt struct {
Location *parse.Token
content string
}
func (stmt *TemplateTagStmt) Position() *parse.Token { return stmt.Location }
func (stmt *TemplateTagStmt) String() string {
t := stmt.Position()
return fmt.Sprintf("TemplateTagStmt(Line=%d Col=%d)", t.Line, t.Col)
}
var templateTagMapping = map[string]string{
"openblock": "{%",
"closeblock": "%}",
"openvariable": "{{",
"closevariable": "}}",
"openbrace": "{",
"closebrace": "}",
"opencomment": "{#",
"closecomment": "#}",
}
func (stmt *TemplateTagStmt) Execute(r *exec.Renderer, tag *parse.StatementBlockNode) {
r.WriteString(stmt.content)
}
func templateTagParser(p *parse.Parser, args *parse.Parser) parse.Statement {
stmt := &TemplateTagStmt{}
if argToken := args.Match(parse.TokenName); argToken != nil {
output, found := templateTagMapping[argToken.Val]
if !found {
errors.ThrowSyntaxError(argToken.ErrorToken(), "argument not found")
}
stmt.content = output
} else {
errors.ThrowSyntaxError(args.Current().ErrorToken(), "identifier expected")
}
if !args.End() {
errors.ThrowSyntaxError(args.Current().ErrorToken(), "malformed templatetag-tag argument")
}
return stmt
}
func init() {
All.MustRegister("templatetag", templateTagParser)
}