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std/string ​

String manipulation utilities for searching, transforming, and inspecting strings.

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from "std/string" import { strContains, strSplit, strReplace, strTrim, strToLower }

Functions ​

strContains ​

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fn strContains(haystack: &string, needle: &string): bool

Returns true if haystack contains needle.

strIndexOf ​

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fn strIndexOf(haystack: &string, needle: &string): i64

Returns the index of the first occurrence of needle, or -1 if not found.

strIndexOfFrom ​

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fn strIndexOfFrom(haystack: &string, needle: &string, start: i64): i64

Like strIndexOf, but begins searching from byte offset start.

strStartsWith ​

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fn strStartsWith(s: &string, prefix: &string): bool

Returns true if s starts with prefix.

strEndsWith ​

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fn strEndsWith(s: &string, suffix: &string): bool

Returns true if s ends with suffix.

strToLower ​

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fn strToLower(s: &string): string

Returns a new string with all ASCII characters lowercased.

strToUpper ​

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fn strToUpper(s: &string): string

Returns a new string with all ASCII characters uppercased.

strTrim ​

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fn strTrim(s: &string): string

Returns a new string with leading and trailing whitespace removed.

strTrimStart ​

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fn strTrimStart(s: &string): string

Returns a new string with leading whitespace removed.

strTrimEnd ​

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fn strTrimEnd(s: &string): string

Returns a new string with trailing whitespace removed.

strSplit ​

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fn strSplit(s: &string, delimiter: &string): Vec<string>

Splits s by delimiter and returns the parts.

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let parts = strSplit(&"a,b,c", &",")
// parts == ["a", "b", "c"]

strRepeat ​

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fn strRepeat(s: &string, count: i64): string

Returns s repeated count times.

strReplace ​

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fn strReplace(s: &string, old: &string, new: &string): string

Replaces all occurrences of old with new in s.

charIsWhitespace ​

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fn charIsWhitespace(c: u8): bool

Returns true if c is an ASCII whitespace character.

charIsDigit ​

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fn charIsDigit(c: u8): bool

Returns true if c is an ASCII digit (0-9).

charIsAlpha ​

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fn charIsAlpha(c: u8): bool

Returns true if c is an ASCII letter (a-z, A-Z).

charIsAlphanumeric ​

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fn charIsAlphanumeric(c: u8): bool

Returns true if c is an ASCII letter or digit.

trim ​

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fn trim(s: &string): string

Alias for strTrim. Returns a new string with leading and trailing whitespace removed.