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citation.go
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citation.go
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package meta
import (
"sort"
"strings"
"time"
)
const (
citationKey int = iota
citationAuthor
citationYear
citationTitle
citationPublished
citationVolume
citationPages
citationDoi
citationLink
citationRetrieved
citationLast
)
var citationHeaders Header = map[string]int{
"Key": citationKey,
"Author": citationAuthor,
"Year": citationYear,
"Title": citationTitle,
"Published": citationPublished,
"Volume": citationVolume,
"Pages": citationPages,
"DOI": citationDoi,
"Link": citationLink,
"Retrieved": citationRetrieved,
}
type Citation struct {
Key string
Author string
Year int
Title string
Published string
Volume string
Pages string
Doi Doi
Link string
Retrieved time.Time
year string
doi string
retrieved string
}
type CitationList []Citation
func (c CitationList) Len() int { return len(c) }
func (c CitationList) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c CitationList) Less(i, j int) bool { return c[i].Key < c[j].Key }
func (c CitationList) encode() [][]string {
var data [][]string
data = append(data, citationHeaders.Columns())
for _, row := range c {
data = append(data, []string{
row.Key,
row.Author,
row.year,
row.Title,
row.Published,
row.Volume,
row.Pages,
row.doi,
row.Link,
row.retrieved,
})
}
return data
}
func (c *CitationList) decode(data [][]string) error {
if !(len(data) > 1) {
return nil
}
var citations []Citation
fields := citationHeaders.Fields(data[0])
for _, row := range data[1:] {
d := fields.Remap(row)
year, err := ParseInt(d[citationYear])
if err != nil {
return err
}
var retrieved time.Time
if s := strings.TrimSpace(d[citationRetrieved]); s != "" {
t, err := time.Parse(DateTimeFormat, s)
if err != nil {
return err
}
retrieved = t
}
var doi Doi
if s := strings.TrimSpace(d[citationDoi]); s != "" {
if err := doi.UnmarshalText([]byte(s)); err != nil {
return err
}
}
citations = append(citations, Citation{
Key: strings.TrimSpace(d[citationKey]),
Author: strings.TrimSpace(d[citationAuthor]),
Year: year,
Title: strings.TrimSpace(d[citationTitle]),
Published: strings.TrimSpace(d[citationPublished]),
Volume: strings.TrimSpace(d[citationVolume]),
Pages: strings.TrimSpace(d[citationPages]),
Doi: doi,
Link: strings.TrimSpace(d[citationLink]),
Retrieved: retrieved,
year: strings.TrimSpace(d[citationYear]),
doi: strings.TrimSpace(d[citationDoi]),
retrieved: strings.TrimSpace(d[citationRetrieved]),
})
}
*c = CitationList(citations)
return nil
}
func LoadCitations(path string) ([]Citation, error) {
var c []Citation
if err := LoadList(path, (*CitationList)(&c)); err != nil {
return nil, err
}
sort.Sort(CitationList(c))
return c, nil
}