增加layer---待完成

#! /usr/bin/env python
# -*- coding:utf-8 -*-
# Author Ian Ying
# mail: kongqing.ying@yitu-inc.com

import fileinput,sys,os,re

def input_file_count(filename):
    '''fix last line is empty by checking last 4 lines'''
    count_line = open("streamlayer.ev", "r")
    #line_count = len(['' for line in count_line.readlines()])
    line_count_arr = count_line.readlines()
    total = len(line_count_arr)
    for i in range(1,5):
        print line_count_arr[-i].strip()
        re_match = re.compile(r'^)')
        if re_match.search(line_count_arr[-i]):
            line_count = total-i+1
            print line_count_arr[-i].strip(),'in'
            break
        else:
            line_count = total
    print line_count
    count_line.close()
    # filename_bak = filename+'bak'
    # filename_bak = str(filename_bak)
    # os.rename(filename, filename_bak)
    # old_file = open(filename_bak, 'r')
    # with open(filename, 'w') as file_modify:
    #     for line in old_file.readlines():
    #         print line
    #         file_modify.write(line)
    return line_count

def add_layer_streamLayer(layer,datatype,layer_num,layer_type):
    line_count = input_file_count('streamlayer.ev')
    print line_count
    z = 0
    for line in fileinput.input('streamlayer.ev',inplace=1):
        if fileinput.lineno() == line_count and (')' in line):
            z = 'right',fileinput.lineno()
            print '('+ layer + ' '+datatype +' )'+ layer_num +' '+ layer_type
            print ')'
        elif fileinput.lineno() != line_count:
            print line.strip()
        else:
            z =  'Wrong! And the total line is',fileinput.lineno()
            print line.strip()
            fileinput.close()
            print " The input file structure is wrong!"
    fileinput.close()
    print z


if __name__ == "__main__":
    add_layer_streamLayer('M1','drawing','3','0')

真实使用的时候

1.需要考虑判断添加layer的位置条件。

2.需要加入读取标准文件，可以方便一次性多加数个layer。

3. streamlayer,techdisplay等等其他的文件需要另外加入。

4.最好加入一个备份模块，防止出现意外情况；

5.加入使用说明；

6.display 文件是需要加入格式的，四种格式，需要全部拷贝出来，然后随机分配；

7.map.ev尾部是没有）作为结尾的，所以只需要添加就好了；

8.techlayer/techpurpose这两个需要查找是否有涵盖到。