go-org-orgwiki/org/paragraph.go
Niklas Fasching 9a0a9c11eb Export WriteNodesAsString on writer interface
WriteNodesAsString is simple enough to implement but exposing it is helpful in
the implementation of extending writers and we don't aim to keep writer a small
interface so let's expose it.
2019-11-02 23:44:16 +01:00

46 lines
1.3 KiB
Go

package org
import (
"regexp"
"strings"
)
type Paragraph struct{ Children []Node }
type HorizontalRule struct{}
var horizontalRuleRegexp = regexp.MustCompile(`^(\s*)-{5,}\s*$`)
var plainTextRegexp = regexp.MustCompile(`^(\s*)(.*)`)
func lexText(line string) (token, bool) {
if m := plainTextRegexp.FindStringSubmatch(line); m != nil {
return token{"text", len(m[1]), m[2], m}, true
}
return nilToken, false
}
func lexHorizontalRule(line string) (token, bool) {
if m := horizontalRuleRegexp.FindStringSubmatch(line); m != nil {
return token{"horizontalRule", len(m[1]), "", m}, true
}
return nilToken, false
}
func (d *Document) parseParagraph(i int, parentStop stopFn) (int, Node) {
lines, start := []string{d.tokens[i].content}, i
i++
stop := func(d *Document, i int) bool {
return parentStop(d, i) || d.tokens[i].kind != "text" || d.tokens[i].content == ""
}
for ; !stop(d, i); i++ {
lines = append(lines, d.tokens[i].content)
}
consumed := i - start
return consumed, Paragraph{d.parseInline(strings.Join(lines, "\n"))}
}
func (d *Document) parseHorizontalRule(i int, parentStop stopFn) (int, Node) {
return 1, HorizontalRule{}
}
func (n Paragraph) String() string { return orgWriter.WriteNodesAsString(n) }
func (n HorizontalRule) String() string { return orgWriter.WriteNodesAsString(n) }