1 | const { defaults } = require('./defaults.js');
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2 | const {
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3 | cleanUrl,
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4 | escape
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5 | } = require('./helpers.js');
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6 |
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7 |
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8 |
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9 |
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10 | module.exports = class Renderer {
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11 | constructor(options) {
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12 | this.options = options || defaults;
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13 | }
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14 |
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15 | code(code, infostring, escaped) {
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16 | const lang = (infostring || '').match(/\S*/)[0];
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17 | if (this.options.highlight) {
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18 | const out = this.options.highlight(code, lang);
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19 | if (out != null && out !== code) {
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20 | escaped = true;
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21 | code = out;
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22 | }
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23 | }
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24 |
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25 | if (!lang) {
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26 | return '<pre><code>'
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27 | + (escaped ? code : escape(code, true))
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28 | + '</code></pre>';
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29 | }
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30 |
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31 | return '<pre><code class="'
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32 | + this.options.langPrefix
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33 | + escape(lang, true)
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34 | + '">'
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35 | + (escaped ? code : escape(code, true))
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36 | + '</code></pre>\n';
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37 | }
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38 |
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39 | blockquote(quote) {
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40 | return '<blockquote>\n' + quote + '</blockquote>\n';
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41 | }
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42 |
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43 | html(html) {
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44 | return html;
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45 | }
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46 |
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47 | heading(text, level, raw, slugger) {
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48 | if (this.options.headerIds) {
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49 | return '<h'
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50 | + level
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51 | + ' id="'
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52 | + this.options.headerPrefix
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53 | + slugger.slug(raw)
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54 | + '">'
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55 | + text
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56 | + '</h'
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57 | + level
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58 | + '>\n';
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59 | }
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60 |
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61 | return '<h' + level + '>' + text + '</h' + level + '>\n';
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62 | }
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63 |
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64 | hr() {
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65 | return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
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66 | }
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67 |
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68 | list(body, ordered, start) {
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69 | const type = ordered ? 'ol' : 'ul',
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70 | startatt = (ordered && start !== 1) ? (' start="' + start + '"') : '';
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71 | return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
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72 | }
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73 |
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74 | listitem(text) {
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75 | return '<li>' + text + '</li>\n';
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76 | }
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77 |
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78 | checkbox(checked) {
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79 | return '<input '
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80 | + (checked ? 'checked="" ' : '')
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81 | + 'disabled="" type="checkbox"'
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82 | + (this.options.xhtml ? ' /' : '')
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83 | + '> ';
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84 | }
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85 |
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86 | paragraph(text) {
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87 | return '<p>' + text + '</p>\n';
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88 | }
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89 |
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90 | table(header, body) {
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91 | if (body) body = '<tbody>' + body + '</tbody>';
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92 |
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93 | return '<table>\n'
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94 | + '<thead>\n'
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95 | + header
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96 | + '</thead>\n'
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97 | + body
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98 | + '</table>\n';
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99 | }
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100 |
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101 | tablerow(content) {
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102 | return '<tr>\n' + content + '</tr>\n';
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103 | }
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104 |
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105 | tablecell(content, flags) {
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106 | const type = flags.header ? 'th' : 'td';
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107 | const tag = flags.align
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108 | ? '<' + type + ' align="' + flags.align + '">'
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109 | : '<' + type + '>';
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110 | return tag + content + '</' + type + '>\n';
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111 | }
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112 |
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113 |
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114 | strong(text) {
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115 | return '<strong>' + text + '</strong>';
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116 | }
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117 |
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118 | em(text) {
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119 | return '<em>' + text + '</em>';
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120 | }
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121 |
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122 | codespan(text) {
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123 | return '<code>' + text + '</code>';
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124 | }
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125 |
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126 | br() {
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127 | return this.options.xhtml ? '<br/>' : '<br>';
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128 | }
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129 |
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130 | del(text) {
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131 | return '<del>' + text + '</del>';
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132 | }
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133 |
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134 | link(href, title, text) {
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135 | href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
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136 | if (href === null) {
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137 | return text;
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138 | }
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139 | let out = '<a href="' + escape(href) + '"';
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140 | if (title) {
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141 | out += ' title="' + title + '"';
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142 | }
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143 | out += '>' + text + '</a>';
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144 | return out;
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145 | }
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146 |
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147 | image(href, title, text) {
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148 | href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
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149 | if (href === null) {
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150 | return text;
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151 | }
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152 |
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153 | let out = '<img src="' + href + '" alt="' + text + '"';
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154 | if (title) {
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155 | out += ' title="' + title + '"';
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156 | }
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157 | out += this.options.xhtml ? '/>' : '>';
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158 | return out;
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159 | }
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160 |
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161 | text(text) {
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162 | return text;
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163 | }
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164 | };
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