Shell Programming and Scripting

# ./test.py
<C f="Val1" />
<C f="val2" />

awk '/^<C f=/ && jsf && jnf { print $2 }
$0 ~ "^<JS name=\""js { jsf = 1 }
$0 ~ "^<J name=\""jn { jnf = 1 }
/^<\/J>/ { jnf = 0 }
/^<\/JS/ { jsf = 0 }
' FS="[=/>]" js="XXX" jn="X_NAME1" filename

#!/usr/bin/python
f=open("file")
for line in f:
    if line.find("XXX"):
        if f.next().find("X_NAME1"):
            while 1:
                N=f.next().strip()
                if N.startswith("</J>"): 
                    break
                print N
f.close()

#!/usr/bin/env python
data = open("file").readlines()
for i in range(len(data)):
    data[i] = data[i].strip()    
jsname_index = data.index("<JS name=\"XXX\">")
jend_index = data.index("</J>")
if data[jsname_index+1] == "<J name=\"X_NAME1\">" :
    print data[jsname_index+1+1 :jend_index ]

# ./test.py
['<C f="Val1" />', '<C f="val2" />']