generate thumbail automatically

.gitignore

@@ -0,0 +1 @@
+*.mobi

README.md

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+# TXT2MOBI
+
+[README_ZH_cn.md](./examples/README_ZH_cn.md)
+
+`txt2mobi` is a simple tool for converting txt file to Mobi format for kindle. It's Based on golang package [mobi](https://github.com/766b/mobi/).
+
+`Note`: All testing were done on Kindle App for windows and Kindle Paperwhite (10th Gen)
+_PS: Any html element in text file would make effect._
+
+## Build
+
+```
+go get -u github.com/zhnxin/txt2mobi
+```
+
+## Usage
+
+1. Prepare the cover,thumbnail and txt file
+
+2. Create a config file witch you can refer to  [example.toml](./examples/example.toml)
+
+3. Run the command:
+```sh
+[linux]$./txt2mobi -f example.toml [- o output_file_name.mobi] [-p]
+#for Windows
+[windows]$ txt2mobi.exe -f example.toml [- o output_file_name.mobi] [-p]
+```
+
+## termimal parameter
+require:
+- `-config`: config file
+
+`or`
+
+require:
+
+- `-f`: input file
+- `-title`: book title
+- `-author`: book author
+- `-cover`: book cover and thumbnail
+- `-chapter`: chater title regexp pattern
+
+options:
+
+- `-subchapter`: subchapter title regexp pattern
+- `compress`: is to compress the result
+- `encoding:`: use gb18030 as default
+
+
+other options:
+
+- `-o`: output file name
+- `-p`: is to use '\<p\>\</p\>' to pack every paragrahes.
+- `-escape`: to disable html escape
+
+## config file
+
+```toml
+title="Example"
+author="zhengxin"
+file="example.txt"
+cover="cover_example.jpg"
+chapter="^Chapter\\.\\d+.*$"
+subchapter='^Chapter\\.\\d+\-\\d+ .*$'
+compress=false
+//default cover size
+//cover_width=860
+//cover_hight=1200
+```
+
+_Note:_
+- `title`: If the output_filename is not given, the `title` would be used as default.
+- `chapter`: A regexp pattern to determin the chapter line title.
+- `compress`: If it's true, the output would be compressed witch make the file smaller but take mush time to finish.
+- `encoding`: Options. Use `utf-8` as default. Also support `gb18030` and `gbk`.
+
+## Need GUI？
+
+This tool is ready simple but modifis all need for me. Email me if you really desire it.
+
+## About BLANK
+
+The prefixed blank would be ignore because of html decoding.

chapter.go

@@ -0,0 +1,104 @@
+package main
+
+import (
+	"bytes"
+	"html"
+
+	"github.com/zhnxin/mobi"
+)
+
+var (
+	isEscape    = true
+	isParagraph = false
+	LineFeed    = []byte("<br/>")
+	PStart      = []byte("<p>")
+	PEnd        = []byte("</p>")
+	Blank       = []byte{}
+)
+
+func SetIsEscape(flag bool) {
+	isEscape = flag
+}
+func SetIsParagraph(flag bool) {
+	isParagraph = flag
+}
+
+type chapterContent struct {
+	Title   string
+	Content []byte
+}
+
+func (c *chapterContent) Append(content []byte) {
+	if !isEscape {
+		content = []byte(html.EscapeString(string(content)))
+	}
+	if isParagraph {
+		if len(content) > 1 {
+			c.Content = append(c.Content, bytes.Join([][]byte{PStart, content, PEnd}, Blank)...)
+		} else {
+			c.Content = append(c.Content, LineFeed...)
+		}
+	} else {
+		c.Content = append(c.Content, LineFeed...)
+		if len(content) > 1 {
+			c.Content = append(c.Content, content...)
+		}
+	}
+
+}
+
+func (c *chapterContent) SetTitle(title string) {
+	c.Title = title
+}
+
+func (c *chapterContent) Restore(title string) {
+	c.Title = title
+	c.Content = make([]byte, 0)
+}
+
+type Chapter struct {
+	content        chapterContent
+	subChapterList []chapterContent
+	subLength      uint
+}
+
+func NewChapter(title string) Chapter {
+	return Chapter{
+		content: chapterContent{
+			Title:   title,
+			Content: []byte{},
+		},
+		subChapterList: make([]chapterContent, 0),
+	}
+}
+
+func (c *Chapter) Restore(title string) {
+	c.subLength = 0
+	c.content.Title = title
+	c.content.Content = make([]byte, 0)
+	c.subChapterList = make([]chapterContent, 0)
+}
+
+func (c *Chapter) AddSubChapter(title string) {
+	subChapter := chapterContent{
+		Title:   title,
+		Content: make([]byte, 0),
+	}
+	c.subChapterList = append(c.subChapterList, subChapter)
+	c.subLength += 1
+}
+
+func (c *Chapter) Append(content []byte) {
+	if c.subLength < 1 {
+		c.content.Append(content)
+	} else {
+		c.subChapterList[c.subLength-1].Append(content)
+	}
+}
+
+func (c *Chapter) Flush(mobiWriter mobi.Builder) {
+	chapter := mobiWriter.NewChapter(c.content.Title, c.content.Content)
+	for _, content := range c.subChapterList {
+		chapter.AddSubChapter(content.Title, content.Content)
+	}
+}

examples/README_ZH_cn.md

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+# TXT2Mobi
+
+一个基于golang package [mobi](https://github.com/766b/mobi/)的简单命令行工具。能够将txt文本文件转换为Mobi格式
+
+`注意`: 所有测试都是使用KindleForPC(windows)和Paperwhite (10th Gen)
+
+_ps: 文档中的所有html元素都会生效_
+
+## 编译
+
+
+```
+go get -u github.com/zhnxin/txt2mobi
+```
+
+## Usage
+
+1. 准备好封面(.jpg),文本文档(.txt)
+2. 根据[示例](./examples/example.toml)创建配置文件(.toml)
+3. 运行
+```sh
+[linux]$./txt2mobi -f example.toml [- o output_file_name.mobi] [-p]
+[windows]$ txt2mobi.exe -f example.toml [- o output_file_name.mobi] [-p]
+```
+
+## termimal parameter
+require:
+- `-config`: config file
+
+or
+
+require:
+- `-f`: 文档
+- `-title`: 书名
+- `-author`: 作者
+- `-cover`: 封面及缩略图
+- `-chapter`: 一级标题的正则表达式
+options:
+- `-subchapter`: 二级标题的正则表达式，默认为空
+- `compress`: 是否压缩，默认不使用
+- `encoding`： 文件编码，默认为gb18030
+
+
+other options:
+
+- `-o`: 输出文件名
+- `-p`: 是否使用 '\<p\>\</p\>' 装饰段落.
+- `-escape`: 关闭html转义
+
+## 配置文件
+```toml
+title="Example"
+author="zhengxin"
+file="example.txt"
+cover="cover_example.jpg"
+chapter="^第.*卷 .*$"
+subchapter="^第\\d+章 .*$"
+compress=false
+```
+
+_Note_:
+- `title` : 如果可选的输出文件名没有提供，就会使用title作为默认文件名
+- `chapter`： 正则表达式，用于识别章节
+- `compress`： 被置为true时，会压缩生成结果，但回消耗更多的运行时间
+- `encoding`： 可选参数，默认值为`utf-8`,也支持`gb18030`和`gbk`。
+
+## 需要GUI?
+
+这个命令行工具虽然简单(简陋？),但已经能够满足我的所有需求。如果你非常有需求，可以email联系我，让我有足够的￥动力￥来完成它。
+
+## 关于开头空格
+
+由于html内部解析，英文的段首空格将被忽略。

examples/example.toml

@@ -0,0 +1,12 @@
+title="example"
+author="zhengxin"
+file="examples/example.txt"
+cover="examples/cover_example.jpg"
+chapter="^第.*卷$"
+subchapter="^第\\d+章 .*$"
+compress=false
+encoding="GB18030"
+lang="zh-CN"
+//default cover size
+//cover_width=860
+//cover_hight=1200

examples/example.txt

@@ -0,0 +1,26 @@
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+
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+
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+
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img_test.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestGImg(t *testing.T) {
+	config := Config{CoverHight: 1200, CoverWidth: 860}
+	_, _, err := config.generateCover("examples/cover_example.jpg")
+	if err != nil {
+		t.Fatal(err)
+	}
+}