You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
138 lines
3.3 KiB
138 lines
3.3 KiB
package org
|
|
|
|
import (
|
|
"regexp"
|
|
"strconv"
|
|
"strings"
|
|
"unicode/utf8"
|
|
)
|
|
|
|
type Table struct {
|
|
Rows []Row
|
|
ColumnInfos []ColumnInfo
|
|
SeparatorIndices []int
|
|
}
|
|
|
|
type Row struct {
|
|
Columns []Column
|
|
IsSpecial bool
|
|
}
|
|
|
|
type Column struct {
|
|
Children []Node
|
|
*ColumnInfo
|
|
}
|
|
|
|
type ColumnInfo struct {
|
|
Align string
|
|
Len int
|
|
DisplayLen int
|
|
}
|
|
|
|
var tableSeparatorRegexp = regexp.MustCompile(`^(\s*)(\|[+-|]*)\s*$`)
|
|
var tableRowRegexp = regexp.MustCompile(`^(\s*)(\|.*)`)
|
|
|
|
var columnAlignAndLengthRegexp = regexp.MustCompile(`^<(l|c|r)?(\d+)?>$`)
|
|
|
|
func lexTable(line string) (token, bool) {
|
|
if m := tableSeparatorRegexp.FindStringSubmatch(line); m != nil {
|
|
return token{"tableSeparator", len(m[1]), m[2], m}, true
|
|
} else if m := tableRowRegexp.FindStringSubmatch(line); m != nil {
|
|
return token{"tableRow", len(m[1]), m[2], m}, true
|
|
}
|
|
return nilToken, false
|
|
}
|
|
|
|
func (d *Document) parseTable(i int, parentStop stopFn) (int, Node) {
|
|
rawRows, separatorIndices, start := [][]string{}, []int{}, i
|
|
for ; !parentStop(d, i); i++ {
|
|
if t := d.tokens[i]; t.kind == "tableRow" {
|
|
rawRow := strings.FieldsFunc(d.tokens[i].content, func(r rune) bool { return r == '|' })
|
|
for i := range rawRow {
|
|
rawRow[i] = strings.TrimSpace(rawRow[i])
|
|
}
|
|
rawRows = append(rawRows, rawRow)
|
|
} else if t.kind == "tableSeparator" {
|
|
separatorIndices = append(separatorIndices, i-start)
|
|
rawRows = append(rawRows, nil)
|
|
} else {
|
|
break
|
|
}
|
|
}
|
|
|
|
table := Table{nil, getColumnInfos(rawRows), separatorIndices}
|
|
for _, rawColumns := range rawRows {
|
|
row := Row{nil, isSpecialRow(rawColumns)}
|
|
if len(rawColumns) != 0 {
|
|
for i := range table.ColumnInfos {
|
|
column := Column{nil, &table.ColumnInfos[i]}
|
|
if i < len(rawColumns) {
|
|
column.Children = d.parseInline(rawColumns[i])
|
|
}
|
|
row.Columns = append(row.Columns, column)
|
|
}
|
|
}
|
|
table.Rows = append(table.Rows, row)
|
|
}
|
|
return i - start, table
|
|
}
|
|
|
|
func getColumnInfos(rows [][]string) []ColumnInfo {
|
|
columnCount := 0
|
|
for _, columns := range rows {
|
|
if n := len(columns); n > columnCount {
|
|
columnCount = n
|
|
}
|
|
}
|
|
|
|
columnInfos := make([]ColumnInfo, columnCount)
|
|
for i := 0; i < columnCount; i++ {
|
|
countNumeric, countNonNumeric := 0, 0
|
|
for _, columns := range rows {
|
|
if i >= len(columns) {
|
|
continue
|
|
}
|
|
|
|
if n := utf8.RuneCountInString(columns[i]); n > columnInfos[i].Len {
|
|
columnInfos[i].Len = n
|
|
}
|
|
|
|
if m := columnAlignAndLengthRegexp.FindStringSubmatch(columns[i]); m != nil && isSpecialRow(columns) {
|
|
switch m[1] {
|
|
case "l":
|
|
columnInfos[i].Align = "left"
|
|
case "c":
|
|
columnInfos[i].Align = "center"
|
|
case "r":
|
|
columnInfos[i].Align = "right"
|
|
}
|
|
if m[2] != "" {
|
|
l, _ := strconv.Atoi(m[2])
|
|
columnInfos[i].DisplayLen = l
|
|
}
|
|
} else if _, err := strconv.ParseFloat(columns[i], 32); err == nil {
|
|
countNumeric++
|
|
} else if strings.TrimSpace(columns[i]) != "" {
|
|
countNonNumeric++
|
|
}
|
|
}
|
|
|
|
if columnInfos[i].Align == "" && countNumeric >= countNonNumeric {
|
|
columnInfos[i].Align = "right"
|
|
}
|
|
}
|
|
return columnInfos
|
|
}
|
|
|
|
func isSpecialRow(rawColumns []string) bool {
|
|
isAlignRow := true
|
|
for _, rawColumn := range rawColumns {
|
|
if !columnAlignAndLengthRegexp.MatchString(rawColumn) && rawColumn != "" {
|
|
isAlignRow = false
|
|
}
|
|
}
|
|
return isAlignRow
|
|
}
|
|
|
|
func (n Table) String() string { return orgWriter.WriteNodesAsString(n) }
|