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Index Of#

Strings / Index Of

  • Can Read

  • Cannot Write

Description#

The index of the first occurrence of a text inside another one. Returns -1 if not found

Parameters#

Name Description
Text The text where the occurrence is searched
Find The text that is searched for
Ignore Case Whether upper and lower case characters are considered the same

Code#

using System;
using UnityEngine;
using VisualScript.Icons;

namespace VisualScript.Runtime
{
    [Get]

    [Title("Index Of")]
    [Category("Strings/Index Of")]

    [Description("The index of the first occurrence of a text inside another one. Returns -1 if not found")]
    [Image(typeof(IconSearch), ColorTheme.Type.Yellow, typeof(BadgeString))]

    [Parameter("Text", "The text where the occurrence is searched")]
    [Parameter("Find", "The text that is searched for")]
    [Parameter("Ignore Case", "Whether upper and lower case characters are considered the same")]

    [Keywords("String", "Find", "Search", "Position", "Location", "Contains")]

    [Serializable]
    public class TypeNumberStringIndexOf : TypeNumber
    {
        [SerializeField] private GetString m_Text = new GetString();
        [SerializeField] private GetString m_Find = new GetString();
        [SerializeField] private GetBool m_IgnoreCase = new GetBool(false);

        public override double GetPreview(GameObject source) => IndexOf(
            this.m_Text.GetPreview(source),
            this.m_Find.GetPreview(source),
            this.m_IgnoreCase.GetPreview(source)
        );

        public override double Get(Args args) => IndexOf(
            this.m_Text.Get(args),
            this.m_Find.Get(args),
            this.m_IgnoreCase.Get(args)
        );

        private static double IndexOf(string text, string find, bool ignoreCase)
        {
            if (string.IsNullOrEmpty(text) || string.IsNullOrEmpty(find)) return -1;

            StringComparison comparison = ignoreCase
                ? StringComparison.OrdinalIgnoreCase
                : StringComparison.Ordinal;

            return text.IndexOf(find, comparison);
        }

        public override string ToString()
        {
            return $"Index of {this.m_Find} in {this.m_Text}";
        }

        protected override SubscriptionMode Subscription => SubscriptionMode.OnChange;
    }
}
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