This module provides some high performance string operations.
Experimental API, subject to change.
Procs
func setSlice(s: var string; slice: Slice[int]) {....raises: [], tags: [], forbids: [].}
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Inplace version of substr.
Example:
import std/sugar var a = "Hello, Nim!" doAssert a.dup(setSlice(7 .. 9)) == "Nim" doAssert a.dup(setSlice(0 .. 0)) == "H" doAssert a.dup(setSlice(0 .. 1)) == "He" doAssert a.dup(setSlice(0 .. 10)) == a doAssert a.dup(setSlice(1 .. 0)).len == 0 doAssert a.dup(setSlice(20 .. -1)).len == 0 doAssertRaises(AssertionDefect): discard a.dup(setSlice(-1 .. 1)) doAssertRaises(AssertionDefect): discard a.dup(setSlice(1 .. 11))
Source Edit func strip(a: var string; leading = true; trailing = true; chars: set[char] = whitespaces) {.inline, ...raises: [], tags: [], forbids: [].}
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Inplace version of strip. Strips leading or trailing chars (default: whitespace characters).
If leading is true (default), leading chars are stripped. If trailing is true (default), trailing chars are stripped. If both are false, the string is unchanged.
Example:
var a = " vhellov " strip(a) assert a == "vhellov" a = " vhellov " a.strip(leading = false) assert a == " vhellov" a = " vhellov " a.strip(trailing = false) assert a == "vhellov " var c = "blaXbla" c.strip(chars = {'b', 'a'}) assert c == "laXbl" c = "blaXbla" c.strip(chars = {'b', 'a', 'l'}) assert c == "X"
Source Edit