-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
4 changed files
with
166 additions
and
8 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| const alignments = ['left', 'center', 'right']; | ||
|
|
||
| /** | ||
| * Converts a markdown table string into HTML. | ||
| * @param {string} md Markdown table as a string. | ||
| */ | ||
| export function mdTableToHTML(md) { | ||
| var lines = getLines(md); | ||
| var isHeader = true; | ||
| var table = new HTMLTable(); | ||
| var colAlignments = []; | ||
| lines.forEach(function(line) { | ||
| if (isHeaderSeparation(line)) { | ||
| isHeader = false; | ||
| colAlignments = getAlignment(line); | ||
| return; | ||
| } | ||
| var vals = splitLine(line); | ||
| table.addRow(vals, isHeader); | ||
| }); | ||
| table.setAlignments(colAlignments); | ||
| return { | ||
| html: table.getHTML(), | ||
| htmlString: table.getHTMLString() | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Converts a document into an array of string, where each element corresponds to one row. | ||
| * @param {string} doc Document | ||
| * @returns {string[]} The lines of the document. | ||
| */ | ||
| function getLines(doc) { | ||
| return doc.replace(/\r\n/g,"\n").split("\n") | ||
| } | ||
|
|
||
| /** | ||
| * Checks whether a line contains the table syntax that separates table header from body. | ||
| * Example for a separation line: "| --- |:---:| ---:|" | ||
| * @param {string} line A line of a markdown document. | ||
| * @returns {boolean} True if the line is a separation line. | ||
| */ | ||
| function isHeaderSeparation(line) { | ||
| let match = line.match(/(\|\s*(:)?\s*-{3,}\s*(:)?\s*)+\|/g); | ||
| if (!Array.isArray(match)) return false; | ||
| return match.length > 0; | ||
| } | ||
|
|
||
| /** | ||
| * Reads the column alignment information from a separation line. | ||
| * E.g. "| --- |:---:| ---:|" is ['left', 'center', 'right'] | ||
| * @param {string} headerLine A line for which isHeaderSeparation returns true. | ||
| * @returns {string[]} The alignment of each column, entries are in ['left', 'center', 'right']. | ||
| */ | ||
| function getAlignment(headerLine) { | ||
| let parts = splitLine(headerLine); | ||
|
|
||
| return parts.map(col => { | ||
| if (col.length === 0) return alignments[0]; | ||
| let firstChar = col.charAt(0), | ||
| lastChar = col.slice(-1); | ||
| if (firstChar === ':' && lastChar === ':') return alignments[1]; | ||
| if (lastChar === ':') return alignments[2]; | ||
| return alignments[0]; | ||
| }) | ||
| } | ||
|
|
||
| /** | ||
| * Converts an alignment into the corresponding style tag. | ||
| * Empty string for alignment: left (default). | ||
| * @param {string} alignment Alignment, i.e. either of ['left', 'center', 'right']. | ||
| * @returns {string} The style attribute with text-alignment. | ||
| */ | ||
| function getStyleAttribute(alignment) { | ||
| if (alignment === alignments[0]) return ''; | ||
| return ' style="text-align: ' + alignment + ';"'; | ||
| } | ||
|
|
||
| /** | ||
| * Splits a Markdown table line into its trimmed column values. | ||
| * @param {string} line Markdown table line. | ||
| * @returns {string[]} The trimmed column values. | ||
| */ | ||
| function splitLine(line) { | ||
| return line.split('|').map(x => x.trim()).filter((x, i, a) => { return x.length > 0 || [0, a.length].indexOf(i) === -1}) | ||
| } | ||
|
|
||
| /** | ||
| * HTML table creation helper class. | ||
| * Constructs the table and returns the HTML code. | ||
| */ | ||
| function HTMLTable() { | ||
| this.ths = []; | ||
| this.tds = []; | ||
| this.alignments = []; | ||
|
|
||
| this.getHTMLString = function() { | ||
| let newline = '\n'; | ||
| return "<table>" + newline + | ||
| this.ths.map((x) => { return this.getRow(x, 'th'); }, this).join(newline) + newline + | ||
| this.tds.map((x) => { return this.getRow(x, 'td'); }, this).join(newline) + newline + | ||
| "</table>" | ||
| }; | ||
|
|
||
| this.getHTML = function() { | ||
| return '<table class="table">' + | ||
| this.ths.map((x, index) => { return this.getRow(x, 'th'); }, this).join('') + | ||
| this.tds.map((x, index) => { return this.getRow(x, 'td'); }, this).join('') + | ||
| '</table>' | ||
| }; | ||
|
|
||
| this.getRow = function(vals, tag) { | ||
| return "<tr>" + vals.map((x, index) => { return "<" + tag + getStyleAttribute(this.getAlignment(index)) + ">" + x + "</" + tag + ">"}).join('') + "</tr>"; | ||
| }; | ||
|
|
||
| this.addRow = function(vals, isHeader) { | ||
| if (isHeader) { | ||
| this.ths.push(vals); | ||
| } | ||
| else { | ||
| this.tds.push(vals); | ||
| } | ||
| }; | ||
|
|
||
| this.setAlignments = function(alignments) { | ||
| this.alignments = alignments; | ||
| }; | ||
|
|
||
| this.getAlignment = function(colIndex) { | ||
| if (this.alignments.length <= colIndex) return alignments[0]; | ||
| return this.alignments[colIndex]; | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -627,6 +627,10 @@ video { | |
| display: flex; | ||
| } | ||
|
|
||
| .table { | ||
| display: table; | ||
| } | ||
|
|
||
| .hidden { | ||
| display: none; | ||
| } | ||
|
|
||