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// Package parser2v1 contains functions to read, load and parse
// SPDX tag-value files.
// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
package parser2v1
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_1, error) {
parser := tvParser2_1{}
for _, tv := range tvs {
err := parser.parsePair2_1(tv.Tag, tv.Value)
if err != nil {
return nil, err
}
}
if parser.file != nil && parser.file.FileSPDXIdentifier == nullSpdxElementId2_1 {
return nil, fmt.Errorf("invalid file without a file SPDX identifier")
}
if parser.pkg != nil && parser.pkg.PackageSPDXIdentifier == nullSpdxElementId2_1 {
return nil, fmt.Errorf("invalid package without a package SPDX identifier")
}
return parser.doc, nil
}
func (parser *tvParser2_1) parsePair2_1(tag string, value string) error {
switch parser.st {
case psStart2_1:
return parser.parsePairFromStart2_1(tag, value)
case psCreationInfo2_1:
return parser.parsePairFromCreationInfo2_1(tag, value)
case psPackage2_1:
return parser.parsePairFromPackage2_1(tag, value)
case psFile2_1:
return parser.parsePairFromFile2_1(tag, value)
case psSnippet2_1:
return parser.parsePairFromSnippet2_1(tag, value)
case psOtherLicense2_1:
return parser.parsePairFromOtherLicense2_1(tag, value)
case psReview2_1:
return parser.parsePairFromReview2_1(tag, value)
default:
return fmt.Errorf("parser state %v not recognized when parsing (%s, %s)", parser.st, tag, value)
}
}
func (parser *tvParser2_1) parsePairFromStart2_1(tag string, value string) error {
// fail if not in Start parser state
if parser.st != psStart2_1 {
return fmt.Errorf("got invalid state %v in parsePairFromStart2_1", parser.st)
}
// create an SPDX Document data struct if we don't have one already
if parser.doc == nil {
parser.doc = &spdx.Document2_1{}
}
// move to Creation Info parser state
parser.st = psCreationInfo2_1
// and ask Creation Info subfunc to parse
return parser.parsePairFromCreationInfo2_1(tag, value)
}
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