將字符串插入javascript文件的特定部分

我需要通過插入一個字符串，用python來更改JavaScript文件的一個特定部分。這是一個JavaScript文件的小樣本。將字符串插入javascript文件的特定部分

//----------------------------------------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);

這裏是一段JavaScript同一樣品展示它需要插入字符串「INSERT_STRING_HERE」粗體：

//----------------------------------------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);

這是我的嘗試，到目前爲止，這僅僅是表演我已經導入了正則表達式，但因爲放棄了我的努力，並試圖循環瀏覽javascript文件，但不知道如何繼續實現我所需要的內容：

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:

來源

2017-11-18 Frank Harb

Python腳本應該如何知道應該在哪一行插入字符串？ – Barmar

當您看到該註釋行時，請設置一個變量。然後，當您看到要替換的圖案的線條時，檢查該變量是否已設置，然後進行替換。

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")

來源

2017-11-18 00:49:34 Barmar

將字符串插入javascript文件的特定部分

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