请注意:书的目录.txt 编码:UTF-8,推荐用 Notepad++ 转换编码。
pip install lxml ;
lxml-5.1.0-cp310-cp310-win_amd64.whl (3.9 MB)
pip install xmltodict ;
lxml 读目录.txt文件,用 xmltodict 转换为 json数据,生成 jstree模板所需的文件。
编写 txt_etree_json.py 如下
python
# -*- coding: utf-8 -*-
""" 读目录.txt文件,转换为json数据,生成jstree所需的文件 """
import os
import sys
import codecs
import json
from lxml import etree
import xmltodict
from jinja2 import Environment,FileSystemLoader
if len( sys.argv ) ==2:
f1 = sys.argv[1]
else:
print('usage: python txt_etree_mm.py file1.txt')
sys.exit(1)
if not os.path.exists(f1):
print("ERROR: {f1} not found.")
sys.exit(1)
fn,ext = os.path.splitext(f1)
if ext.lower() != '.txt':
print('ext is not .txt')
sys.exit(2)
fp = codecs.open(f1, mode="r", encoding="utf-8")
# 读取第一行:书名
title = fp.readline()
# 创建主题节点
root = etree.Element("node")
root.set("id", '1')
root.set("text", title.strip())
# 定义状态:
state = etree.Element("state")
state.set("opened", 'true')
state.set("disabled", 'true')
root.append(state)
# 用缩排表现层级关系,假设最多5个层级
indent1 = ' '*2
indent2 = ' '*4
indent3 = ' '*6
indent4 = ' '*8
n = 2
for line in fp:
txt = line.strip()
txt = txt[0:-3] # 去掉行尾的页数
if len(txt) ==0:
continue
elif len(txt) >0 and line[0] !=' ':
# 创建主题的子节点(1级节点)
node1 = etree.Element("children")
node1.set("id", str(n))
node1.set("text", txt)
root.append(node1)
p_node = node1 # 寄存父节点
elif line.startswith(indent1) and line[2] !=' ':
# 创建node1的子节点(2级节点)
node2 = etree.Element("children")
node2.set("id", str(n))
node2.set("text", txt)
try: type(node1)
except NameError: root.append(node2)
else: node1.append(node2)
p_node = node2
elif line.startswith(indent2) and line[4] !=' ':
# 创建node2的子节点(3级节点)
node3 = etree.Element("children")
node3.set("id", str(n))
node3.set("text", txt)
try: type(node2)
except NameError: node1.append(node3)
else: node2.append(node3)
p_node = node3
elif line.startswith(indent3) and line[6] !=' ':
# 创建node3的子节点(4级节点)
node4 = etree.Element("children")
node4.set("id", str(n))
node4.set("text", txt)
try: type(node3)
except NameError: node2.append(node4)
else: node3.append(node4)
p_node = node4
elif line.startswith(indent4) and line[8] !=' ':
# 创建node4的子节点(5级节点)
node5 = etree.Element("children")
node5.set("id", str(n))
node5.set("text", txt)
try: type(node4)
except NameError: p_node.append(node5)
else: node4.append(node5)
else:
print(txt)
n += 1
fp.close()
print(f"line number: {n}")
# 转换成 str,方便导出
root_bytes = etree.tostring(root, pretty_print=False)
xml_str = root_bytes.decode()
try:
json_dict = xmltodict.parse(xml_str, encoding='utf-8')
json_str = json.dumps(json_dict['node'], indent=2)
except:
print("xmltodict.parse error!")
# 去掉'@'
json_str = '['+ json_str.replace('\"@','"') +']'
#print(json_str)
# 使用 jinja2 对html模板文件进行数据替换
env = Environment(loader=FileSystemLoader('d:/python/'))
tpl = env.get_template('jstree_template.htm')
# 导出.html文件
f2 = fn +'.html'
with codecs.open(f2, 'w', encoding='utf8') as fp:
content = tpl.render(title=title.strip(), mydir=json_str)
fp.write(content)
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编写 jstree 模板文件:jstree_template.htm
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>{{title}}</title>
<script src="../js/jquery-3.2.1.min.js"></script>
<link rel="stylesheet" href="../js/jstree/dist/themes/default/style.css" />
<script src="../js/jstree/dist/jstree.min.js"></script>
</head>
<body>
<!-- 搜索框 -->
<div class="search_input">
<input type="text" id="search_a" />
<img src="../js/jstree/dist/search.png" />
</div>
<div id="treeview1" class="treeview">
</div>
<script type="text/javascript">
var mydir = {{mydir}};
$("#treeview1").jstree({
'core' : {
"multiple" : false,
'data' : mydir,
'dblclick_toggle': true
},
"plugins" : ["search"]
});
//输入框输入时自动搜索
var tout = false;
$('#search_a').keyup(function(){
if (tout) clearTimeout(tout);
tout = setTimeout(function(){
$('#treeview1').jstree(true).search($('#search_a').val());
}, 250);
});
</script>
</body>
</html>
运行 python txt_etree_json.py your_pdf_dir.txt
生成 your_pdf_dir.html