1 files changed, 64 insertions, 0 deletions
diff --git a/tvloader/parser2v2/parser.go b/tvloader/parser2v2/parser.go
new file mode 100644
index 0000000..e89bab1
--- /dev/null
+++ b/tvloader/parser2v2/parser.go
@@ -0,0 +1,64 @@
+// Package parser2v2 contains functions to read, load and parse
+// SPDX tag-value files, version 2.2.
+// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+package parser2v2
+
+import (
+	"fmt"
+
+	"github.com/spdx/tools-golang/spdx"
+	"github.com/spdx/tools-golang/tvloader/reader"
+)
+
+// ParseTagValues takes a list of (tag, value) pairs, parses it and returns
+// a pointer to a parsed SPDX Document.
+func ParseTagValues(tvs []reader.TagValuePair) (*spdx.Document2_2, error) {
+	parser := tvParser2_2{}
+	for _, tv := range tvs {
+		err := parser.parsePair2_2(tv.Tag, tv.Value)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return parser.doc, nil
+}
+
+func (parser *tvParser2_2) parsePair2_2(tag string, value string) error {
+	switch parser.st {
+	case psStart2_2:
+		return parser.parsePairFromStart2_2(tag, value)
+	case psCreationInfo2_2:
+		return parser.parsePairFromCreationInfo2_2(tag, value)
+	case psPackage2_2:
+		return parser.parsePairFromPackage2_2(tag, value)
+	case psFile2_2:
+		return parser.parsePairFromFile2_2(tag, value)
+	case psSnippet2_2:
+		return parser.parsePairFromSnippet2_2(tag, value)
+	case psOtherLicense2_2:
+		return parser.parsePairFromOtherLicense2_2(tag, value)
+	case psReview2_2:
+		return parser.parsePairFromReview2_2(tag, value)
+	default:
+		return fmt.Errorf("Parser state %v not recognized when parsing (%s, %s)", parser.st, tag, value)
+	}
+}
+
+func (parser *tvParser2_2) parsePairFromStart2_2(tag string, value string) error {
+	// fail if not in Start parser state
+	if parser.st != psStart2_2 {
+		return fmt.Errorf("Got invalid state %v in parsePairFromStart2_2", parser.st)
+	}
+
+	// create an SPDX Document data struct if we don't have one already
+	if parser.doc == nil {
+		parser.doc = &spdx.Document2_2{}
+	}
+
+	// move to Creation Info parser state
+	parser.st = psCreationInfo2_2
+
+	// and ask Creation Info subfunc to parse
+	return parser.parsePairFromCreationInfo2_2(tag, value)
+}