[Pkg-javascript-commits] [ltx] 11/25: stringify (#104)

[Jonas Smedegaard]

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js pushed a commit to branch master
in repository ltx.

commit e544c8265356e7bd6ed583a7961d72cc18e44600
Author: Sonny Piers <sonny at fastmail.net>
Date:   Tue Dec 6 20:59:14 2016 +0100

    stringify (#104)
---
 .travis.yml            |  2 --
 index.js               |  5 +++++
 lib/stringify.js       | 32 ++++++++++++++++++++++++++++++++
 test/stringify-test.js | 39 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 76 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 6a2a8e2..9ee1d94 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,8 +6,6 @@ env:
   - CXX="g++-4.8"
 
 node_js:
-  - '0.10'
-  - '0.12'
   - '4'
   - '5'
   - '6'
diff --git a/index.js b/index.js
index 0552ca2..ca39d0b 100644
--- a/index.js
+++ b/index.js
@@ -9,6 +9,8 @@ var createElement = require('./lib/createElement')
 var tag = require('./lib/tag')
 var tagString = require('./lib/tagString')
 var is = require('./lib/is')
+var clone = require('./lib/clone')
+var stringify = require('./lib/stringify')
 
 exports = module.exports = tag
 
@@ -23,6 +25,7 @@ exports.isNode = is.isNode
 exports.isElement = is.isElement
 exports.isText = is.isText
 
+exports.clone = clone
 exports.createElement = createElement
 
 exports.escapeXML = escape.escapeXML
@@ -35,3 +38,5 @@ exports.parse = parse
 
 exports.tag = tag
 exports.tagString = tagString
+
+exports.stringify = stringify
diff --git a/lib/stringify.js b/lib/stringify.js
new file mode 100644
index 0000000..cdba6ea
--- /dev/null
+++ b/lib/stringify.js
@@ -0,0 +1,32 @@
+'use strict'
+
+function stringify (el, indent, level) {
+  if (typeof indent === 'number') indent = ' '.repeat(indent)
+  if (!level) level = 1
+  var s = ''
+  s += '<' + el.name
+
+  Object.keys(el.attrs).forEach((k) => {
+    s += ' ' + k + '=' + '"' + el.attrs[k] + '"'
+  })
+
+  if (el.children.length) {
+    s += '>'
+    el.children.forEach((child, i) => {
+      if (indent) s += '\n' + indent.repeat(level)
+      if (typeof child === 'string') {
+        s += child
+      } else {
+        s += stringify(child, indent, level + 1)
+      }
+    })
+    if (indent) s += '\n' + indent.repeat(level - 1)
+    s += '</' + el.name + '>'
+  } else {
+    s += '/>'
+  }
+
+  return s
+}
+
+module.exports = stringify
diff --git a/test/stringify-test.js b/test/stringify-test.js
new file mode 100644
index 0000000..a85d5ec
--- /dev/null
+++ b/test/stringify-test.js
@@ -0,0 +1,39 @@
+'use strict'
+
+var vows = require('vows')
+var assert = require('assert')
+var ltx = require('..')
+var stringify = require('../lib/stringify')
+
+vows.describe('stringify').addBatch({
+  'is exported correctly': function () {
+    assert.equal(ltx.stringify, stringify)
+  },
+  'returns the same result than .toString()': function () {
+    const el = ltx`
+      <foo bar="foo">
+        text
+        <child foo="bar">
+          text
+          <self-closing/>
+        </child>
+      </foo>
+    `
+    assert.equal(el.toString(), stringify(el))
+  },
+  'indents correctly': function () {
+    const el = ltx`<foo><bar hello="world">text<self/></bar></foo>`
+
+    const expected = [
+      '<foo>',
+      '  <bar hello="world">',
+      '    text',
+      '    <self/>',
+      '  </bar>',
+      '</foo>'
+    ].join('\n')
+
+    assert.equal(stringify(el, 2), expected)
+    assert.equal(stringify(el, '  '), expected)
+  }
+}).export(module)

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