mirror of
https://codeberg.org/scip/epuppy.git
synced 2025-12-16 12:01:00 +01:00
08f470e0d5
* fix #3: added h ui command to toggle ui * fix #4: added -N flag to disable colors * fixed styling of line numbers (-n) * fix #5 add usage section * add pkg/epub module readme * add license terms to all file headers * fixed usage printing * added basic unit tests * run the tests only on linux due to the use of base64 utitlity
111 lines
2.4 KiB
Go
111 lines
2.4 KiB
Go
/*
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Copyright © 2025 Thomas von Dein
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package cmd
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"github.com/tlinden/epuppy/pkg/epub"
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)
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func View(conf *Config) (int, error) {
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switch filepath.Ext(conf.Document) {
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case ".epub":
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return ViewEpub(conf)
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default:
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return ViewText(conf)
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}
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}
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func ViewText(conf *Config) (int, error) {
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data, err := os.ReadFile(conf.Document)
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if err != nil {
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return 0, err
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}
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if conf.Dump {
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return fmt.Println(string(data))
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}
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return Pager(conf, conf.Document, string(data))
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}
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func ViewEpub(conf *Config) (int, error) {
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book, err := epub.Open(conf.Document, conf.XML)
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if err != nil {
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return 0, err
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}
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buf := strings.Builder{}
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head := strings.Builder{}
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for _, creator := range book.Opf.Metadata.Creator {
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head.WriteString(creator.Data)
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head.WriteString(" ")
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}
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head.WriteString("- ")
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for _, title := range book.Opf.Metadata.Title {
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head.WriteString(title)
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head.WriteString(" ")
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}
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fetchByContent(conf, &buf, book)
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if conf.Dump {
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return fmt.Println(buf.String())
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}
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return Pager(conf, head.String(), buf.String())
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}
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// FIXME: since the switch to book.Files() in epub.Open() this
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// returns invalid chapter numbering
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func fetchByContent(conf *Config, buf *strings.Builder, book *epub.Book) bool {
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chapter := 1
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var gotbody bool
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for _, content := range book.Content {
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if len(content.Body) > 0 {
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if content.Title != "" {
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buf.WriteString(conf.Colors.Chapter.
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Render(fmt.Sprintf("──────┤ %s ├──────", content.Title)))
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}
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buf.WriteString("\r\n\r\n")
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if conf.Dump {
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// avoid excess whitespaces when printing to stdout
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buf.WriteString(content.Body)
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} else {
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buf.WriteString(conf.Colors.Body.Render(content.Body))
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}
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buf.WriteString("\r\n\r\n\r\n\r\n")
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chapter++
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gotbody = true
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}
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}
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return gotbody
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}
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