ec895cbe83
- we can't just look at the len of the string (~ #bytes) - that breaks down for tables containing characters consisting of multiple bytes. This handles more (still not all) cases and is good enough for now - add _ to allowed tag chars - also require space between headline and tags - links (link itself, not the description) spanning multiple lines are not supported - otherwise we would have to take care of splitting link and adding indentation for org pretty printing - and that sounds like such an edge case that it seems cleaner to forbid them
72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
package org
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import (
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"regexp"
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"strings"
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"unicode"
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)
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type Headline struct {
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Lvl int
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Status string
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Priority string
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Properties Node
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Title []Node
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Tags []string
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Children []Node
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}
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var headlineRegexp = regexp.MustCompile(`^([*]+)\s+(.*)`)
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var tagRegexp = regexp.MustCompile(`(.*?)\s+(:[A-Za-z0-9_@#%:]+:\s*$)`)
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func lexHeadline(line string) (token, bool) {
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if m := headlineRegexp.FindStringSubmatch(line); m != nil {
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return token{"headline", 0, m[2], m}, true
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}
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return nilToken, false
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}
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func (d *Document) todoKeywords() []string {
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return strings.FieldsFunc(d.Get("TODO"), func(r rune) bool {
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return unicode.IsSpace(r) || r == '|'
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})
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}
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func (d *Document) parseHeadline(i int, parentStop stopFn) (int, Node) {
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t, headline := d.tokens[i], Headline{}
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headline.Lvl = len(t.matches[1])
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text := t.content
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for _, k := range d.todoKeywords() {
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if strings.HasPrefix(text, k) && len(text) > len(k) && unicode.IsSpace(rune(text[len(k)])) {
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headline.Status = k
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text = text[len(k)+1:]
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break
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}
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}
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if len(text) >= 3 && text[0:2] == "[#" && strings.Contains("ABC", text[2:3]) && text[3] == ']' {
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headline.Priority = text[2:3]
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text = strings.TrimSpace(text[4:])
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}
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if m := tagRegexp.FindStringSubmatch(text); m != nil {
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text = m[1]
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headline.Tags = strings.FieldsFunc(m[2], func(r rune) bool { return r == ':' })
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}
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headline.Title = d.parseInline(text)
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stop := func(d *Document, i int) bool {
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return parentStop(d, i) || d.tokens[i].kind == "headline" && d.tokens[i].lvl <= headline.Lvl
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}
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consumed, nodes := d.parseMany(i+1, stop)
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if len(nodes) > 0 {
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if d, ok := nodes[0].(Drawer); ok && d.Name == "PROPERTIES" {
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headline.Properties = d
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nodes = nodes[1:]
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}
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}
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headline.Children = nodes
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return consumed + 1, headline
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}
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