mirror of https://github.com/jlelse/GoBlog
73 lines
1.3 KiB
Go
73 lines
1.3 KiB
Go
package htmlbuilder
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import (
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"fmt"
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"io"
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textTemplate "text/template"
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)
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type HtmlBuilder struct {
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w io.Writer
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}
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func NewHtmlBuilder(w io.Writer) *HtmlBuilder {
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return &HtmlBuilder{
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w: w,
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}
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}
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func (h *HtmlBuilder) getWriter() io.Writer {
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return h.w
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}
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func (h *HtmlBuilder) Write(p []byte) (int, error) {
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return h.getWriter().Write(p)
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}
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func (h *HtmlBuilder) WriteString(s string) (int, error) {
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return io.WriteString(h.getWriter(), s)
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}
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func (h *HtmlBuilder) WriteUnescaped(s string) {
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_, _ = h.WriteString(s)
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}
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func (h *HtmlBuilder) WriteEscaped(s string) {
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textTemplate.HTMLEscape(h, []byte(s))
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}
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func (h *HtmlBuilder) WriteAttribute(attr string, val any) {
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h.WriteUnescaped(` `)
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h.WriteUnescaped(attr)
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h.WriteUnescaped(`=`)
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if valStr, ok := val.(string); ok {
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h.WriteUnescaped(`"`)
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h.WriteEscaped(valStr)
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h.WriteUnescaped(`"`)
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} else {
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h.WriteEscaped(fmt.Sprint(val))
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}
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}
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func (h *HtmlBuilder) WriteElementOpen(tag string, attrs ...any) {
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h.WriteUnescaped(`<`)
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h.WriteUnescaped(tag)
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for i := 0; i < len(attrs); i += 2 {
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if i+2 > len(attrs) {
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break
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}
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attrStr, ok := attrs[i].(string)
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if !ok {
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continue
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}
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h.WriteAttribute(attrStr, attrs[i+1])
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}
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h.WriteUnescaped(`>`)
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}
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func (h *HtmlBuilder) WriteElementClose(tag string) {
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h.WriteUnescaped(`</`)
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h.WriteUnescaped(tag)
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h.WriteUnescaped(`>`)
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}
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