String Operators

Strings support concatenation and repetition operators:

Operator	Description	Example	Result
+	Concatenation	"Hello" + " " + "World"	"Hello World"
*	Repetition	"ab" * 3	"ababab"
*	Repetition (reversed)	3 * "ab"	"ababab"
in	Substring test	"ell" in "Hello"	True
==	Equality	"abc" == "abc"	True
!=	Inequality	"abc" != "xyz"	True
<	Less than	"abc" < "abd"	True
>	Greater than	"abd" > "abc"	True
<=	Less than or equal	"abc" <= "abc"	True
>=	Greater than or equal	"abc" >= "abc"	True

# String concatenation
greeting = "Hello" + ", " + "World!"
print(greeting)  # "Hello, World!"

# String with other types requires explicit conversion
value = 42
message = "Value: " + str(value)  # Must convert int to str

# String repetition (both directions work, matching Python)
separator = "-" * 40
print(separator)  # "----------------------------------------"

also_separator = 40 * "-"  # Also valid
print(also_separator)  # "----------------------------------------"

# Substring membership
if "error" in log_message:
    handle_error()

Type Safety

Unlike Python, Sharpy does not allow implicit string concatenation with non-string types:

# ✅ Valid
"Count: " + str(42)
f"Count: {42}"           # F-strings handle conversion

# ❌ Invalid - type error
"Count: " + 42           # ERROR: cannot concatenate str and int

Implementation - ✅ + uses native C# string concatenation, * maps to Sharpy.StringHelpers.Repeat(), comparisons use native System.String ordinal comparison, in maps to string.Contains().