120 lines
2.6 KiB
Go
120 lines
2.6 KiB
Go
/*
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Copyright (C) IBM Corporation 2015, Michele Franceschini <franceschini@us.ibm.com>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package gowiki
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import (
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"bytes"
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"unicode/utf8"
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)
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func (a *Article) appendText(t string) {
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a.nchar += utf8.RuneCountInString(t)
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a.text.WriteString(t)
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}
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// fullText determines whether to generate the complete article text (true) or just the article abstract (false)
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func (a *Article) genTextInternal(root *ParseNode, fullText bool) {
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lastwasspace := false
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lastwasimage := false
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for _, n := range root.Nodes {
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var linkStart int
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var fl FullWikiLink
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isLink := false
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tappend := ""
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switch n.NType {
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case "break":
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a.appendText("\n")
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case "space":
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if !lastwasspace {
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a.appendText(" ")
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}
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case "text":
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a.appendText(n.Contents)
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case "image":
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if fullText {
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a.appendText("\n")
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tappend = "\n"
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}
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lastwasimage = true
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case "link":
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isLink = true
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linkStart = len(a.text.Bytes())
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fl = FullWikiLink{Link: n.Link, Start: a.nchar}
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case "html":
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switch n.NSubType {
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case "h1", "h2", "h3", "h4", "h5", "h6":
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a.appendText("\n")
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tappend = "\n"
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if !fullText {
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return
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}
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case "br":
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a.appendText("\n")
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case "ref":
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a.appendText(" ")
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}
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}
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if len(n.Nodes) > 0 {
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if lastwasimage {
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if fullText {
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a.genTextInternal(n, fullText)
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}
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lastwasimage = false
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} else {
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a.genTextInternal(n, fullText)
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}
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}
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if isLink {
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ttmp := a.text.Bytes()
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fl.End = a.nchar
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fl.Text = string(ttmp[linkStart:])
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a.TextLinks = append(a.TextLinks, fl)
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}
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lastwasspace = false
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if n.NType == "space" {
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lastwasspace = true
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}
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a.appendText(tappend)
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}
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return
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}
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func (a *Article) genText() error {
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a.text = bytes.NewBuffer(make([]byte, 1024*1024, 1024*1024))
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a.text.Truncate(0)
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a.nchar = 0
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a.genTextInternal(a.Root, true)
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a.Text = string(a.text.Bytes())
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a.gt = true
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return nil
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}
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func (a *Article) genAbstract() error {
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a.text = bytes.NewBuffer(make([]byte, 1024*1024, 1024*1024))
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a.text.Truncate(0)
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a.nchar = 0
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a.genTextInternal(a.Root, false)
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a.AbstractText = string(a.text.Bytes())
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a.ga = true
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return nil
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}
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func (a *Article) GenText() error {
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return a.genText()
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}
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