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我正在搜索文本。实际上，我正在从 Text 中搜索文本。但是我遇到了区分大小写的问题。如果您搜索“n”，它工作正常。但是当您搜索“N”时，它会转换将所有“n”转换为大写“N”然后搜索。我不知道为什么它会在搜索中发生......？

这是我的尝试..

http://jsfiddle.net/wjLmx/23/

function searchAndHighlight(searchTerm, selector) {
    if (searchTerm) {
        //var wholeWordOnly = new RegExp("\\g"+searchTerm+"\\g","ig"); //matches whole word only
        //var anyCharacter = new RegExp("\\g["+searchTerm+"]\\g","ig"); //matches any word with any of search chars characters
        var selector = selector || "#realTimeContents"; //use body as selector if none provided
        var searchTermRegEx = new RegExp(searchTerm, "ig");
        var matches = $(selector).text().match(searchTermRegEx);
        if (matches != null && matches.length > 0) {
            $('.highlighted').removeClass('highlighted'); //Remove old search highlights  

            //Remove the previous matches
            $span = $('#realTimeContents span');
            $span.replaceWith($span.html());

    if (searchTerm === "&") {
        searchTerm = "&";
        searchTermRegEx = new RegExp(searchTerm, "ig");
    }
            $(selector).html($(selector).html().replace(searchTermRegEx, "<span class='match'>" + searchTerm + "</span>"));
            $('.match:first').addClass('highlighted');

            var i = 0;

            $('.next_h').off('click').on('click', function () {
                i++;

                if (i >= $('.match').length) i = 0;

                $('.match').removeClass('highlighted');
                $('.match').eq(i).addClass('highlighted');
                $('.ui-mobile-viewport').animate({
                    scrollTop: $('.match').eq(i).offset().top
                }, 300);
            });
            $('.previous_h').off('click').on('click', function () {

                i--;

                if (i < 0) i = $('.match').length - 1;

                $('.match').removeClass('highlighted');
                $('.match').eq(i).addClass('highlighted');
                $('.ui-mobile-viewport').animate({
                    scrollTop: $('.match').eq(i).offset().top
                }, 300);
            });




            if ($('.highlighted:first').length) { //if match found, scroll to where the first one appears
                $(window).scrollTop($('.highlighted:first').position().top);
            }
            return true;
        }
    }
    return false;
}

$(document).on('click', '.searchButtonClickText_h', function (event) {

    $(".highlighted").removeClass("highlighted").removeClass("match");
    if (!searchAndHighlight($('.textSearchvalue_h').val())) {
        alert("No results found");
    }


});
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1 回答 1

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您的问题是以下行：

$(selector).html($(selector).html().replace(searchTermRegEx, "<span class='match'>" + searchTerm + "</span>"));

它将匹配项替换为 searchTerm（例如“N”）。

尝试将其替换为以下内容以将其替换为匹配的内容：

$(selector).html($(selector).html().replace(searchTermRegEx, "<span class='match'>" + matches[0] + "</span>"));

如果您想停止不区分大小写的搜索，请i从您的正则表达式中删除。

var searchTermRegEx = new RegExp(searchTerm, "g");
于 2013-07-18T08:42:05.913 回答