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-rw-r--r--Lib/stringold.py15
1 files changed, 15 insertions, 0 deletions
diff --git a/Lib/stringold.py b/Lib/stringold.py
index d3ab88f..8207a8e 100644
--- a/Lib/stringold.py
+++ b/Lib/stringold.py
@@ -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