Implement HTML writer (#33)

Reviewed-on: #33
Co-authored-by: Natercio Moniz <[email protected]>

internal/writing/table/printer.go

@@ -0,0 +1,34 @@
+// Package table renders an internal.AggregatorWriter as the human-readable
+// Anexo J report table for the terminal. The shared table definition it (and
+// the html package) renders from lives in internal/writing/internal/tabledef.
+package table
+
+import (
+	"io"
+
+	"github.com/nmoniz/any2anexoj/internal"
+	"github.com/nmoniz/any2anexoj/internal/writing/internal/tabledef"
+)
+
+// Printer writes a simple, human readable, table to the provided io.Writer
+// for the report items in an AggregatorWriter. Each Render call builds a
+// fresh table from the aggregator, so invoking it repeatedly on the same
+// instance never duplicates rows.
+type Printer struct {
+	output     io.Writer
+	translator tabledef.Translator
+}
+
+func NewPrinter(w io.Writer, tr tabledef.Translator) *Printer {
+	return &Printer{
+		output:     w,
+		translator: tr,
+	}
+}
+
+// Render writes the terminal table for aw to the configured output.
+func (pp *Printer) Render(aw *internal.AggregatorWriter) {
+	t := tabledef.Build(pp.translator, aw)
+	t.SetOutputMirror(pp.output)
+	t.Render()
+}