1 files changed, 158 insertions, 0 deletions
diff --git a/formats.go b/formats.go
new file mode 100644
index 0000000..6c10a0a
--- /dev/null
+++ b/formats.go
@@ -0,0 +1,158 @@
+package main
+
+// Bom/BomStub conversion/dump/load routines
+
+import (
+	"encoding/csv"
+	"encoding/json"
+	"encoding/xml"
+	"fmt"
+	"io"
+	"log"
+	"strings"
+)
+
+// --------------------- text (CLI only ) -----------------------
+
+func DumpBomAsText(bs *BomStub, b *Bom, out io.Writer) {
+	fmt.Fprintln(out)
+	fmt.Fprintf(out, "%s (version %s, created %s)\n", bs.Name, b.Version, b.Created)
+	fmt.Fprintf(out, "Creator: %s\n", bs.Owner)
+	if bs.Description != "" {
+		fmt.Fprintf(out, "Description: %s\n", bs.Description)
+	}
+	fmt.Println()
+	// "by line item"
+	fmt.Fprintf(out, "tag\tqty\tmanufacturer\tmpn\t\tdescription\t\tcomment\n")
+	for _, li := range b.LineItems {
+		fmt.Fprintf(out, "%s\t%d\t%s\t%s\t\t%s\t\t%s\n",
+			li.Tag,
+			len(li.Elements),
+			li.Manufacturer,
+			li.Mpn,
+			li.Description,
+			li.Comment)
+	}
+	/* // "by circuit element"
+	   fmt.Fprintf(out, "tag\tsymbol\tmanufacturer\tmpn\t\tdescription\t\tcomment\n")
+	   for _, li := range b.LineItems {
+	       for _, elm := range li.Elements {
+	           fmt.Fprintf(out, "%s\t%s\t%s\t%s\t\t%s\t\t%s\n",
+	                      li.Tag,
+	                      elm,
+	                      li.Manufacturer,
+	                      li.Mpn,
+	                      li.Description,
+	                      li.Comment)
+	       }
+	   }
+	*/
+}
+
+// --------------------- csv -----------------------
+
+func DumpBomAsCSV(b *Bom, out io.Writer) {
+	dumper := csv.NewWriter(out)
+	defer dumper.Flush()
+	// "by line item"
+	dumper.Write([]string{"qty",
+		"symbols",
+		"manufacturer",
+		"mpn",
+		"description",
+		"comment"})
+	for _, li := range b.LineItems {
+		dumper.Write([]string{
+			fmt.Sprint(len(li.Elements)),
+			strings.Join(li.Elements, ","),
+			li.Manufacturer,
+			li.Mpn,
+			li.Description,
+			li.Comment})
+	}
+}
+
+func LoadBomFromCSV(out io.Writer) (*Bom, error) {
+
+    b := Bom{}
+
+	dumper := csv.NewWriter(out)
+	defer dumper.Flush()
+	// "by line item"
+	dumper.Write([]string{"qty",
+		"symbols",
+		"manufacturer",
+		"mpn",
+		"description",
+		"comment"})
+	for _, li := range b.LineItems {
+		dumper.Write([]string{
+			fmt.Sprint(len(li.Elements)),
+			strings.Join(li.Elements, ","),
+			li.Manufacturer,
+			li.Mpn,
+			li.Description,
+			li.Comment})
+	}
+    return &b, nil
+}
+
+// --------------------- JSON -----------------------
+
+func DumpBomAsJSON(bs *BomStub, b *Bom, out io.Writer) {
+
+	obj := map[string]interface{}{
+		"bom_meta": bs,
+		"bom":      b,
+	}
+
+	enc := json.NewEncoder(out)
+	if err := enc.Encode(&obj); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func LoadBomFromJSON(input io.Reader) (*BomStub, *Bom, error) {
+
+    bs := BomStub{}
+    b := Bom{}
+
+	obj := map[string]interface{}{
+		"bom_meta": bs,
+		"bom":      b,
+	}
+
+	enc := json.NewDecoder(input)
+	if err := enc.Decode(&obj); err != nil {
+		log.Fatal(err)
+	}
+    return &bs, &b, nil
+}
+
+// --------------------- XML -----------------------
+
+func DumpBomAsXML(bs *BomStub, b *Bom, out io.Writer) {
+
+	enc := xml.NewEncoder(out)
+	if err := enc.Encode(bs); err != nil {
+		log.Fatal(err)
+	}
+	if err := enc.Encode(b); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func LoadBomFromXML(input io.Reader) (*BomStub, *Bom, error) {
+
+    bs := BomStub{}
+    b := Bom{}
+
+	enc := xml.NewDecoder(input)
+	if err := enc.Decode(bs); err != nil {
+		log.Fatal(err)
+	}
+	if err := enc.Decode(b); err != nil {
+		log.Fatal(err)
+	}
+    return &bs, &b, nil
+}