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Node.js xmldom whitespace stripping sample
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| node_modules | |
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| <table> | |
| <tr><td>Alpha<!-- COMMENT --></td><td>Α</td><td>U+0391</td></tr> | |
| <tr><td>Beta</td><td>Β</td><td>U+0392</td></tr> | |
| <tr><td>Gamma</td><td>Γ</td><td>U+0393</td></tr> | |
| <tr><td>Delta</td><td>Δ</td><td>U+0394</td></tr> | |
| <tr><td>Epsilon</td><td>Ε</td><td>U+0395</td></tr> | |
| <tr><td>Zeta</td><td>Ζ</td><td>U+0396</td></tr> | |
| <tr><td>Eta</td><td>Η</td><td>U+0397</td></tr> | |
| <tr><td>Theta</td><td>Θ</td><td>U+0398</td></tr> | |
| <tr><td>Iota</td><td>Ι</td><td>U+0399</td></tr> | |
| <tr><td>Kappa</td><td>Κ</td><td>U+039A</td></tr> | |
| <tr><td>Lambda</td><td>Λ</td><td>U+039B</td></tr> | |
| <tr><td>Mu</td><td>Μ</td><td>U+039C</td></tr> | |
| <tr><td>Nu</td><td>Ν</td><td>U+039D</td></tr> | |
| <tr><td>Xi</td><td>Ξ</td><td>U+039E</td></tr> | |
| <tr><td>Omicron</td><td>Ο</td><td>U+039F</td></tr> | |
| <tr><td>Pi</td><td>Π</td><td>U+03A0</td></tr> | |
| <tr><td>Rho</td><td>Ρ</td><td>U+03A1</td></tr> | |
| <tr><td>Sigma</td><td>Σ</td><td>U+03A3</td></tr> | |
| <tr><td>Tau</td><td>Τ</td><td>U+03A4</td></tr> | |
| <tr><td>Upsilon</td><td>Υ</td><td>U+03A5</td></tr> | |
| <tr><td>Phi</td><td>Φ</td><td>U+03A6</td></tr> | |
| <tr><td>Chi</td><td>Χ</td><td>U+03A7</td></tr> | |
| <tr><td>Psi</td><td>Ψ</td><td>U+03A8</td></tr> | |
| <tr><td>Omega</td><td>Ω</td><td>U+03A9</td></tr> | |
| <tr><td>alpha</td><td>α</td><td>U+03B1</td></tr> | |
| <tr><td>beta</td><td>β</td><td>U+03B2</td></tr> | |
| <tr><td>gamma</td><td>γ</td><td>U+03B3</td></tr> | |
| <tr><td>delta</td><td>δ</td><td>U+03B4</td></tr> | |
| <tr><td>epsilon</td><td>ε</td><td>U+03B5</td></tr> | |
| <tr><td>zeta</td><td>ζ</td><td>U+03B6</td></tr> | |
| <tr><td>eta</td><td>η</td><td>U+03B7</td></tr> | |
| <tr><td>theta</td><td>θ</td><td>U+03B8</td></tr> | |
| <tr><td>iota</td><td>ι</td><td>U+03B9</td></tr> | |
| <tr><td>kappa</td><td>κ</td><td>U+03BA</td></tr> | |
| <tr><td>lambda</td><td>λ</td><td>U+03BB</td></tr> | |
| <tr><td>mu</td><td>μ</td><td>U+03BC</td></tr> | |
| <tr><td>nu</td><td>ν</td><td>U+03BD</td></tr> | |
| <tr><td>xi</td><td>ξ</td><td>U+03BE</td></tr> | |
| <tr><td>omicron</td><td>ο</td><td>U+03BF</td></tr> | |
| <tr><td>pi</td><td>π</td><td>U+03C0</td></tr> | |
| <tr><td>rho</td><td>ρ</td><td>U+03C1</td></tr> | |
| <tr><td>sigmaf</td><td>ς</td><td>U+03C2</td></tr> | |
| <tr><td>sigma</td><td>σ</td><td>U+03C3</td></tr> | |
| <tr><td>tau</td><td>τ</td><td>U+03C4</td></tr> | |
| <tr><td>upsilon</td><td>υ</td><td>U+03C5</td></tr> | |
| <tr><td>phi</td><td>φ</td><td>U+03C6</td></tr> | |
| <tr><td>chi</td><td>χ</td><td>U+03C7</td></tr> | |
| <tr><td>psi</td><td>ψ</td><td>U+03C8</td></tr> | |
| <tr><td>omega</td><td>ω</td><td>U+03C9</td></tr> | |
| <tr><td>thetasym</td><td>ϑ</td><td>U+03D1</td></tr> | |
| <tr><td>upsih</td><td>ϒ</td><td>U+03D2</td></tr> | |
| <tr><td>piv</td><td>ϖ</td><td>U+03D6</td></tr> | |
| </table> | |
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| var xml = require('xmldom'); | |
| var fs = require('fs'); | |
| function main(outputType, fileName) { | |
| var s = fs.readFileSync(fileName).toString(); | |
| var parser = new xml.DOMParser(); | |
| var ser = new xml.XMLSerializer(); | |
| var dom = parser.parseFromString(s); | |
| wsstrip(dom.firstChild); | |
| if (outputType === 'json') { | |
| var j = toJson(dom.firstChild); | |
| console.log(JSON.stringify(j, null, 2)); | |
| } else { | |
| var t = ser.serializeToString(dom); | |
| console.log(t); | |
| } | |
| } | |
| function wsstrip(node) { | |
| var wsre = /[ \t\n]+/; | |
| if (node.nodeType == node.TEXT_NODE) { | |
| if (wsre.test(node.nodeValue)) { | |
| return null; | |
| } | |
| } | |
| if (node.childNodes) { | |
| var wsnodes = []; | |
| for (var i = 0; i < node.childNodes.length; i++) { | |
| var ch = node.childNodes[i] | |
| var c = wsstrip(ch); | |
| if (!c) { | |
| wsnodes.push(ch); | |
| } | |
| } | |
| for (var i = 0; i < wsnodes.length; i++) { | |
| node.removeChild(wsnodes[i]); | |
| } | |
| } | |
| return node; | |
| } | |
| function toJson(node) { | |
| var children = []; | |
| if (node.childNodes) { | |
| for (var i = 0; i < node.childNodes.length; i++) { | |
| var ch = node.childNodes[i]; | |
| children.push(toJson(ch)); | |
| } | |
| } | |
| return { | |
| tagName: node.tagName, | |
| nodeName: node.nodeName, | |
| nodeType: node.nodeType, | |
| nodeValue: node.nodeValue, | |
| data: node.data, | |
| children: children | |
| }; | |
| } | |
| if (require.main === module) { | |
| main(process.argv[2], process.argv[3]); | |
| } | |
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