将字符串插入javascript文件的特定部分

Question

我需要通过使用python插入一个字符串来更改javascript文件的一个特定部分。这里是javascript文件的一个小示例。

//----------------------------------------Peter Lighting Priorities-----------------------------------------------------
/*

// Lighting low prios for everything else//
peter_RenderBoy_lighting_lowPrios = {
    "fromProductionGroups" : ["peter_RenderBoy_lighting"],
    "matchFilters" : [
        {"user": "", "name": ""}     

    ],
    "toProductionGroup" : "",
    "priority" : 3

};

moveAndPrioritise(peter_RenderBoy_lighting_lowPrios);

// lighting normal and Approved LFL shots (emailed at 8pm) //
peter_RenderBoy_lighting_normalPrios = {
    "fromProductionGroups" : ["peter_RenderBoy_lighting"],
    "matchFilters" : [
        {"user": "", "name": ""}     

    ],
    "toProductionGroup" : "",
    "priority" : 2

};

moveAndPrioritise(peter_RenderBoy_lighting_normalPrios);

下面是同样的javascript示例，它以粗体显示字符串"INSERT_STRING_HERE“，需要插入该字符串：

//----------------------------------------Peter Lighting Priorities-----------------------------------------------------
/*

// Lighting low prios for everything else//
peter_RenderBoy_lighting_lowPrios = {
    "fromProductionGroups" : ["peter_RenderBoy_lighting"],
    "matchFilters" : [
        {"user": "", "name": ""}     

    ],
    "toProductionGroup" : "",
    "priority" : 3

};

moveAndPrioritise(peter_RenderBoy_lighting_lowPrios);

// lighting normal and Approved LFL shots (emailed at 8pm) //
peter_RenderBoy_lighting_normalPrios = {
    "fromProductionGroups" : ["peter_RenderBoy_lighting"],
    "matchFilters" : [
        {"user": "", "name": "***INSERT_STRING_HERE***"}     

    ],
    "toProductionGroup" : "",
    "priority" : 2

};

moveAndPrioritise(peter_RenderBoy_lighting_normalPrios);

到目前为止，这只是我的尝试，这仅仅表明我已经导入了regex，但是由于放弃了我的努力，并且试图遍历javascript文件，但是不知道如何继续实现我所需要的：

import re
javascript_file = open('/depts/wranglers/frankie/farmtools/priorities/autoHook.js')
for line in javascript_file:
    if '// lighting normal and Approved LFL shots (emailed at 8pm) //' in line:

Answer 1

当您看到注释行时，设置一个变量。然后，当您看到要替换的模式的行时，检查变量是否已设置，并执行替换操作。

with open('/depts/wranglers/frankie/farmtools/priorities/autoHook.js') as javascript_file, \
     open('/depts/wranglers/frankie/farmtools/priorities/autoHook.new.js') as new_file
    section_found = False
    for line in javascript_file:
        if '// lighting normal and Approved LFL shots (emailed at 8pm) //' in line:
            section_found = True
        elif '{"user": "", "name": ""}' and section_found:
            line = line.replace('"name": ""', '"name": "INSERT_STRING_HERE"')
            section_found = False
        new_file.write(line + "\n")