feat: data/table: AutoLink URLs

Author: grokify

data/table/table.go

@@ -10,14 +10,15 @@ var DebugReadCSV = false // should not need to use this.
 
 // Table is useful for working on CSV data
 type Table struct {
-	Name       string
-	Columns    []string
-	Records    [][]string
-	FormatMap  map[int]string
-	FormatFunc func(val string, colIdx uint) (interface{}, error)
-	ID         string
-	Class      string
-	Style      string
+	Name           string
+	Columns        []string
+	Records        [][]string
+	FormatMap      map[int]string
+	FormatFunc     func(val string, colIdx uint) (interface{}, error)
+	FormatAutoLink bool
+	ID             string
+	Class          string
+	Style          string
 }
 
 func NewTable() Table {

data/table/write.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"regexp"
 	"strconv"
 	"strings"
 	"time"
@@ -146,6 +147,8 @@ func (tbl *Table) FormatterFunc() func(val string, colIdx uint) (interface{}, er
 	}
 }
 
+var rxUrlHttpOrHttps = regexp.MustCompile(`^(i?)https?://.`)
+
 // WriteXLSX writes a table as an Excel XLSX file with
 // row formatter option.
 func WriteXLSX(path string, tables ...*Table) error {
@@ -180,6 +183,11 @@ func WriteXLSX(path string, tables ...*Table) error {
 					return errors.Wrap(err, "gocharts/data/tables/write.go/WriteXLSXFormatted.Error.FormatCellValue")
 				}
 				f.SetCellValue(sheetname, cellLocation, formattedVal)
+				if tbl.FormatAutoLink {
+					if rxUrlHttpOrHttps.MatchString(cellValue) {
+						f.SetCellHyperLink(sheetname, cellLocation, cellValue, "External")
+					}
+				}
 			}
 		}
 		// Set active sheet of the workbook.