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| 1 | +package fontforge |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "regexp" |
| 6 | + "strconv" |
| 7 | + "strings" |
| 8 | + |
| 9 | + semver "github.com/Masterminds/semver/v3" |
| 10 | +) |
| 11 | + |
| 12 | +// semVerRegex is the regular expression used to parse a semantic version. |
| 13 | +const semVerRegex string = `v?([0-9]+)(\.[0-9]+)?(\.[0-9]+)?` + |
| 14 | + `(-([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` + |
| 15 | + `(\+([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` |
| 16 | + |
| 17 | +var versionRegex = regexp.MustCompile("^" + semVerRegex + "$") |
| 18 | + |
| 19 | +func newVersion(v string) (*semver.Version, error) { |
| 20 | + m := versionRegex.FindStringSubmatch(v) |
| 21 | + if m == nil { |
| 22 | + return nil, semver.ErrInvalidSemVer |
| 23 | + } |
| 24 | + |
| 25 | + metadata := m[8] |
| 26 | + pre := m[5] |
| 27 | + minor := uint64(0) |
| 28 | + patch := uint64(0) |
| 29 | + |
| 30 | + var err error |
| 31 | + |
| 32 | + major, err := strconv.ParseUint(m[1], 10, 64) |
| 33 | + if err != nil { |
| 34 | + return nil, fmt.Errorf("error parsing version segment: %w", err) |
| 35 | + } |
| 36 | + |
| 37 | + if m[2] != "" { |
| 38 | + minor, err = strconv.ParseUint(strings.TrimPrefix(m[2], "."), 10, 64) |
| 39 | + if err != nil { |
| 40 | + return nil, fmt.Errorf("error parsing version segment: %w", err) |
| 41 | + } |
| 42 | + } |
| 43 | + |
| 44 | + if m[3] != "" { |
| 45 | + patch, err = strconv.ParseUint(strings.TrimPrefix(m[3], "."), 10, 64) |
| 46 | + if err != nil { |
| 47 | + return nil, fmt.Errorf("error parsing version segment: %w", err) |
| 48 | + } |
| 49 | + } |
| 50 | + |
| 51 | + return semver.NewVersion(semver.New(major, minor, patch, pre, metadata).String()) |
| 52 | +} |
| 53 | + |
| 54 | +func parseVersion(v string) *semver.Version { |
| 55 | + // Sanitize the version. |
| 56 | + v, _, _ = strings.Cut(v, ";") |
| 57 | + v = strings.TrimSpace(v) |
| 58 | + v = buildPattern.ReplaceAllString(v, "+$1") |
| 59 | + |
| 60 | + r, _ := newVersion(v) //nolint: errcheck |
| 61 | + |
| 62 | + return r |
| 63 | +} |
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