parsing the output from matlab

[wang frank]

Hi, 
 
I have a big log file generated from matlabe, for each variable, it print the name of the variable and an empty line and then the value. such as:
 
x1 =
 
    0.1
 
y =
 
   7
 
z = 
 
   6.7
 
x1 =
 
   0.5
 
I want to use python to parse the file and selectively print out the vairable and its value. For example, I want to print out all the value related with x1, so the output will be
 
x1 = 0.1
x1 = 0.5.
 
I really do not know how to do it.
 
 
Thanks
 
Frank
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