def changeValue(key, value, text):
"""
Return text which value of given key is changed.
"""
text = text.strip()
text, changes = re2.subn(u"(?m)^\* %s: (.*?)$" % re2.escape(key),
u"* %s: %s" % (re2.escape(key), value),
text)
# don't check that newtext is equal to oldtext because if newvalue is
# equal oldvalue, it will duplicate that key.
if changes == 0:
if text:
text = text + u"\n* " + key + u": " + value
else:
text = u"* " + key + u": " + value
return text
def extract(key, text):
"""
Extract key from text. Note that both key and text must be enunicode
strings.
"""
if key:
try:
dat = preload.enunicode(re2.find(u"(?m)^\* " + re2.escape(key) +
u": (.*?)$", text, 1))
except AttributeError:
dat = None
else:
lines = text.strip().split(u"\n")
dat = {}
for line in lines:
key, value = line.split(u": ")
dat[key] = value
return dat
