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Create a <table> from a delimited text file

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This commit is contained in:
Matt Baer 2015-01-27 11:00:05 -05:00
parent 869f9dc27c
commit caf129870d
2 changed files with 151 additions and 0 deletions
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120
tablizer.go Normal file
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package main
import (
"os"
"fmt"
"time"
"sort"
"bufio"
"strconv"
"strings"
"text/template"
)
func main() {
fmt.Println("Starting...")
headers := []string{ "User", "Tildes", "Last Collection" }
generate("tilde collectors", sortScore(readData("/home/krowbar/Code/irc/tildescores.txt", "&^%", headers)), "tildes")
}
type Table struct {
Headers []string
Rows []Row
}
type Row struct {
Data []string
}
type By func(r1, r2 *Row) bool
func (by By) Sort(rows []Row) {
rs := &rowSorter {
rows: rows,
by: by,
}
sort.Sort(rs)
}
type rowSorter struct {
rows []Row
by func(r1, r2 *Row) bool
}
func (r *rowSorter) Len() int {
return len(r.rows)
}
func (r *rowSorter) Swap(i, j int) {
r.rows[i], r.rows[j] = r.rows[j], r.rows[i]
}
func (r *rowSorter) Less(i, j int) bool {
return r.by(&r.rows[i], &r.rows[j])
}
func sortScore(table *Table) *Table {
score := func(r1, r2 *Row) bool {
s1, _ := strconv.Atoi(r1.Data[1])
s2, _ := strconv.Atoi(r2.Data[1])
return s1 < s2
}
decScore := func(r1, r2 *Row) bool {
return !score(r1, r2)
}
By(decScore).Sort(table.Rows)
return table
}
func readData(path string, delimiter string, headers []string) *Table {
f, _ := os.Open(path)
defer f.Close()
rows := []Row{}
table := &Table{Headers: headers, Rows: nil}
s := bufio.NewScanner(f)
s.Split(bufio.ScanLines)
for s.Scan() {
data := strings.Split(s.Text(), delimiter)
row := &Row{Data: data}
rows = append(rows, *row)
}
table.Rows = rows
return table
}
type Page struct {
Title string
Table Table
Updated string
UpdatedForHumans string
}
func generate(title string, table *Table, outputFile string) {
fmt.Println("Generating page.")
f, err := os.Create(os.Getenv("HOME") + "/public_html/" + outputFile + ".html")
if err != nil {
panic(err)
}
defer f.Close()
w := bufio.NewWriter(f)
template, err := template.ParseFiles("templates/table.html")
if err != nil {
panic(err)
}
// Extra page data
curTime := time.Now().UTC()
updatedReadable := curTime.Format(time.RFC1123)
updated := curTime.Format(time.RFC3339)
// Generate the page
page := &Page{Title: title, Table: *table, UpdatedForHumans: updatedReadable, Updated: updated}
template.ExecuteTemplate(w, "table", page)
w.Flush()
fmt.Println("DONE!")
}

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templates/table.html Normal file
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{{define "table"}}
<html>
<head>
<title>{{.Title}}</title>
<link type="text/css" rel="stylesheet" href="tilde.css" />
</head>
<body id="hello">
<h1>{{.Title}}</h1>
<p>Last Updated: <time datetime="{{.Updated}}">{{.UpdatedForHumans}}</time></p>
<table>
<tr>
{{range .Table.Headers}}
<th>{{.}}</th>
{{end}}
</tr>
{{range .Table.Rows}}
<tr>
{{range .Data}}
<td>{{.}}</td>
{{end}}
</tr>
{{end}}
</table>
</body>
</html>
{{end}}