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Added new functions replace() and replace1().

This commit is contained in:
Guido van Rossum 1997-03-25 16:50:31 +00:00
parent c8a80cdbad
commit 1eb9a81eb9
2 changed files with 30 additions and 0 deletions
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15
Lib/string.py
View File

@ -320,6 +320,21 @@ def maketrans(fromstr, tostr):
L[fromstr[i]] = tostr[i]
return joinfields(L, "")
# Substring replacement (global)
def replace(old, new, str):
return joinfields(splitfields(str, old), new)
# Substring replacement (1st substring only)
def replace1(old, new, str, i=0, last=None):
if last is None:
i = find(str, old, i)
else:
i = find(str, old, i, last)
if i >= 0:
str = str[:i] + new + str[i+len(old):]
return str
# Try importing optional built-in module "strop" -- if it exists,
# it redefines some string operations that are 100-1000 times faster.
# It also defines values for whitespace, lowercase and uppercase

15
Lib/stringold.py
View File

@ -320,6 +320,21 @@ def maketrans(fromstr, tostr):
L[fromstr[i]] = tostr[i]
return joinfields(L, "")
# Substring replacement (global)
def replace(old, new, str):
return joinfields(splitfields(str, old), new)
# Substring replacement (1st substring only)
def replace1(old, new, str, i=0, last=None):
if last is None:
i = find(str, old, i)
else:
i = find(str, old, i, last)
if i >= 0:
str = str[:i] + new + str[i+len(old):]
return str
# Try importing optional built-in module "strop" -- if it exists,
# it redefines some string operations that are 100-1000 times faster.
# It also defines values for whitespace, lowercase and uppercase