tracktime

 1package main
 2
 3import (
 4	"github.com/nmeum/tracktime/parser"
 5
 6	"fmt"
 7	"io"
 8	"log"
 9	"os"
10	"strings"
11	"time"
12)
13
14type Table [][]string
15
16const outputFormat = time.RFC822
17
18func escapeCell(cell string) string {
19	var builder strings.Builder
20	builder.Grow(len(cell))
21
22	for _, r := range cell {
23		switch r {
24		case '&':
25			builder.WriteString("\\&")
26		default:
27			builder.WriteRune(r)
28		}
29	}
30
31	return builder.String()
32}
33
34func printTabular(w io.Writer, rows Table) {
35	numCols := len(rows[0])
36
37	alignment := make([]string, numCols)
38	for i := 0; i < numCols; i++ {
39		alignment[i] = "r"
40	}
41	alignment[0] = "l"
42
43	fmt.Fprintf(w, "\\begin{tabular}{%s}\n", strings.Join(alignment, "|"))
44	for _, row := range rows {
45		fmt.Fprintf(w, "\t")
46		for n, col := range row {
47			delim := "&"
48			if n == numCols-1 {
49				delim = "\\\\"
50			}
51
52			fmt.Fprintf(w, "%v %v ", escapeCell(col), delim)
53		}
54		fmt.Fprintf(w, "\n")
55	}
56	fmt.Fprintf(w, "\\end{tabular}\n")
57}
58
59func main() {
60	p := parser.NewParser(parser.DefaultTimeFormat())
61	entries, err := p.ParseEntries("stdin", os.Stdin)
62	if err != nil {
63		log.Fatal(err)
64	}
65
66	var rows Table
67	for _, entry := range entries {
68		rows = append(rows, []string{
69			entry.Date.Format(outputFormat),
70			entry.Duration.String(),
71			entry.Description,
72		})
73	}
74
75	if len(rows) == 0 {
76		log.Fatal("no entries in given file")
77	}
78	printTabular(os.Stdout, rows)
79}