From 5512e09abb786bd43ecd18a046f056dcb13835ee Mon Sep 17 00:00:00 2001
From: fengxxc <fengxxc@gmail.com>
Date: Thu, 24 Aug 2023 15:17:52 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20windows=E4=B8=8B,=20=E6=96=87=E4=BB=B6?=
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---
 Makefile         |  2 +-
 README.md        | 16 ++++++++++++++++
 format/format.go | 34 ++++++++++++++++++++++++++++++++--
 3 files changed, 49 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 20873c6..ea4badf 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 BUILD_ENV := CGO_ENABLED=0
 APP=wechatmp2markdown
-VERSION=v1.1.2
+VERSION=v1.1.3
 
 # linux or mac 环境编译
 # make [cmd]
diff --git a/README.md b/README.md
index d6fddc9..a70eb69 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,19 @@ wechatmp2makrdown_win64.exe https://mp.weixin.qq.com/s/a=1&b=2 D:\wechatmp_bak -
 
 markdown和图片文件将保存在 `D:\wechatmp_bak\2022年度总结\` 下
 
+> 在Windows环境下，文件或路径名不能包含以下任何字符：“（双引号）、*（星号）、<（小于）、>（大于）、？（问号）、\（反斜杠）、/（正斜杠）、|（竖线）、：（冒号）。当标题包含以上字符时，本程序将用相似的Unicode字符进行替换，具体替换规则为：  
+> ```
+> "<" -> "≺"
+> ">" -> "≻"
+> ":" -> ":"
+> """ -> "“"
+> "/" -> "∕"
+> "\" -> "∖"
+> "|" -> "∣"
+> "?" -> "?"
+> "*" -> "⁎"
+> ```
+
 ### web server 模式
 通过web服务使用
 
@@ -73,5 +86,8 @@ mingw32-make win-build-win32
 
 编译好的文件在`./build`目录下
 
+## TODO
+- [ ] 支持解析表格元素(table tag)
+
 ## 最后
 抓紧时间窗口。努力记录。黑暗中记得光的模样。
\ No newline at end of file
diff --git a/format/format.go b/format/format.go
index f1a307c..56ad708 100644
--- a/format/format.go
+++ b/format/format.go
@@ -3,10 +3,10 @@ package format
 import (
 	"bytes"
 	"encoding/binary"
-	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
+	"regexp"
 	"runtime"
 	"strconv"
 	"strings"
@@ -30,6 +30,33 @@ func Format(article parse.Article) (string, map[string][]byte) {
 	return result, saveImageBytes
 }
 
+// windows下, 文件名包含非法字符时, 用相似的Unicode字符进行替换; 长度超过255个字符时，保留前255个字符
+func legalizationFilenameForWindows(name string) string {
+	// Windows文件名不能包含这些字符
+	invalidChars := regexp.MustCompile(`[\\/:*?\"<>|]`)
+
+	// 如果包含非法字符,则替换
+	if invalidChars.MatchString(name) {
+		name = strings.ReplaceAll(name, "<", "≺")
+		name = strings.ReplaceAll(name, ">", "≻")
+		name = strings.ReplaceAll(name, ":", ":")
+		name = strings.ReplaceAll(name, "\"", "“")
+		name = strings.ReplaceAll(name, "/", "∕")
+		name = strings.ReplaceAll(name, "\\", "∖")
+		name = strings.ReplaceAll(name, "|", "∣")
+		name = strings.ReplaceAll(name, "?", "?")
+		name = strings.ReplaceAll(name, "*", "⁎")
+	}
+
+	// 文件名最大长度255字符
+	if len(name) > 255 {
+		// 超出就截断文件名
+		name = name[:255]
+	}
+
+	return name
+}
+
 // FormatAndSave fomat article and save to local file
 func FormatAndSave(article parse.Article, filePath string) error {
 	// basrPath := filepath.Join(filePath, )
@@ -55,6 +82,9 @@ func FormatAndSave(article parse.Article, filePath string) error {
 		fileName = filePath
 	} else {
 		title := strings.TrimSpace(article.Title.Val.(string))
+		if isWin {
+			title = legalizationFilenameForWindows(title)
+		}
 		// title := "thisistitle"
 		basePath = filepath.Join(filePath, title)
 		fileName = filepath.Join(basePath, title+".md")
@@ -89,7 +119,7 @@ func FormatAndSave(article parse.Article, filePath string) error {
 			f.Write(buf.Bytes())
 		}
 	}
-	return ioutil.WriteFile(fileName, []byte(result), 0644)
+	return os.WriteFile(fileName, []byte(result), 0644)
 }
 
 func formatTitle(piece parse.Piece) string {