使 CommonMark.Net 支持 Table 解析

参照为 CommonMark.Net 增加 Table 解析增加了 CommonMark.Net 对表格的支持。下面是原文中的代码：

为 Inline 增加一个类型 Table

public enum InlineTag : byte
{
    String = 0,
    SoftBreak,
    LineBreak,
    Code,
    RawHtml,
    Emphasis,
    Strong,
    Link,
    Image,
    Strikethrough,
    Table    //新增的 Table 类型
}

为 ‘|’ 符号增加处理方法

internal static Func<Subject, Inline>[] InitializeParsers(CommonMarkSettings settings)
{
    var strikethroughTilde = 0 != (settings.AdditionalFeatures & CommonMarkAdditionalFeatures.StrikethroughTilde);

    var p = new Func<Subject, Inline>[strikethroughTilde ? 127 : 125];
    p['\n'] = handle_newline;
    p['`'] = handle_backticks;
    p['\\'] = handle_backslash;
    p['&'] = HandleEntity;
    p['<'] = handle_pointy_brace;
    p['_'] = HandleEmphasis;
    p['*'] = HandleEmphasis;
    p['['] = HandleLeftSquareBracket;
    p[']'] = HandleRightSquareBracket;
    p['!'] = HandleExclamation;
    p['|'] = HandleTable;    //增加'|'的解析方法，把 | 到 | 封装为一个 Table 类型的 Inline

    if (strikethroughTilde)
        p['~'] = HandleTilde;

    return p;
}

private static Inline HandleTable(Subject subj)
{
    //这里偷懒了，可以加个校验，确定是个 table，否则单个'|'也会被解析
    var start = subj.Buffer.IndexOf('|');
    var last = subj.Buffer.LastIndexOf('|');
    var inlTab = new Inline(InlineTag.Table, subj.Buffer.Substring(start, last - start + 1));
    subj.Position = last + 1;
    return inlTab;
}

Table 类型 Inline 的渲染,InlinesToHtml

switch (inline.Tag)
{
    case InlineTag.Table:
        //tab
        writer.WriteConstant("<table class=\"table table-bordered table-striped\">");
        var lines = inline.LiteralContentValue.ToString().Split(new char[] { '\n' }, System.StringSplitOptions.RemoveEmptyEntries);
        int i = 0;
        foreach (var line in lines)
        {
            i++;

            if (line.Split(new char[] { '|', '-', ' ', '\n' }, System.StringSplitOptions.RemoveEmptyEntries).Length == 0)
            {
                continue;
            }

            writer.WriteConstant("<tr>");
            var tds = line.Split(new char[] { '|' });
            for (int j = 1; j < tds.Length - 1; j++)
            {
                writer.WriteConstant(i == 1 ? "<th>" : "<td>");
                writer.WriteConstant(tds[j]);
                writer.WriteConstant(i == 1 ? "</th>" : "</td>");
            }
            writer.WriteConstant("</tr>");
        }
        writer.WriteConstant("</table>");
        break;
        ....... ......
}

使 CommonMark.Net 支持 Table 解析 ​

使 CommonMark.Net 支持 Table 解析