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Comparing version 1.0.2 to 1.0.3

dist/index.js.map
webpack.config.js

12

__tests__/index.test.js

@@ -1,5 +0,15 @@

import { render, register } from '../src';
import { compress, loader, render, register } from '../src';
import { registerPlugin } from '../src/library';
describe('Jet Engine', () => {
describe('compress', function () {
it('should remove comments', function () {
expect(compress('{*a short comment*}Hello')).toEqual('Hello');
});
it('should load a template', function () {
expect(loader('This is a {* short *}test')).toEqual('module.exports = "This is a test";');
});
});
it('should handle {%TEXT} directive', () => {

@@ -6,0 +16,0 @@ const out = render(

453

dist/index.js

@@ -1,451 +0,2 @@

'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.setFlag = setFlag;
exports.getFlag = getFlag;
exports.appendOut = appendOut;
exports.pushOutput = pushOutput;
exports.popOutput = popOutput;
exports.pushSpecial = pushSpecial;
exports.setSpecial = setSpecial;
exports.getSpecial = getSpecial;
exports.popSpecial = popSpecial;
exports.pushTemplate = pushTemplate;
exports.popTemplate = popTemplate;
exports.getTemplate = getTemplate;
exports.incPtr = incPtr;
exports.getPtr = getPtr;
exports.setPtr = setPtr;
exports.pushStack = pushStack;
exports.popStack = popStack;
exports.getAttributes = getAttributes;
exports.parseDirective = parseDirective;
exports.get = get;
exports.processUntil = processUntil;
exports.readUntil = readUntil;
exports.skipUntil = skipUntil;
exports.runUntil = runUntil;
exports.compress = compress;
exports.compile = compile;
exports.isSelfClosing = isSelfClosing;
exports.endTag = endTag;
exports.render = render;
exports.register = register;
exports.isRegistered = isRegistered;
exports.cleanup = cleanup;
var _library = require('./library');
require('./plugins');
var stack = [];
var registry = {};
var outputStack = [];
var templateStack = [];
var ptrStack = [];
var specialStack = [];
var flags = {};
var template = void 0;
function setFlag(flag, value) {
flags[flag] = value;
}
function getFlag(flag) {
return flags[flag];
}
function appendOut(s) {
outputStack[outputStack.length - 1] += s;
}
function pushOutput(s) {
outputStack.push(s);
}
function popOutput() {
return outputStack.pop();
}
function pushSpecial(o) {
specialStack.push(o);
}
function setSpecial(key, value) {
specialStack[specialStack.length - 1][key] = value;
}
function getSpecial(key) {
return specialStack[specialStack.length - 1][key];
}
function popSpecial() {
return specialStack.pop();
}
function pushTemplate(templ) {
templateStack.push(templ);
ptrStack.push(0);
template = templ;
}
function popTemplate() {
ptrStack.pop();
var lastTemplate = templateStack.pop();
if (templateStack.length > 0) {
template = templateStack[templateStack.length - 1];
}
return lastTemplate;
}
function getTemplate() {
// return templateStack[templateStack.length - 1];
return template;
}
function incPtr() {
var ptr = ptrStack[ptrStack.length - 1];
ptrStack[ptrStack.length - 1] = ptr + 1;
return ptr;
}
function getPtr() {
return ptrStack[ptrStack.length - 1];
}
function setPtr(ptr) {
ptrStack[ptrStack.length - 1] = ptr;
}
function pushStack(context) {
stack.push(context);
}
function popStack() {
return stack.pop();
}
function getAttributes(attr) {
var attributes = {};
var keys = Object.keys(attr);
var len = keys.length;
for (var i = 0; i < len; i++) {
var key = keys[i];
attributes[key] = get(attr[key]);
}
return attributes;
}
function parseDirective(chunkValue) {
var value = chunkValue;
if (value.slice(-1) === '/') {
value = value.slice(0, -1).trim();
}
var parts = [];
var attributes = {};
var isSpace = false;
var quote = null;
var part = '';
for (var i = 0; i < value.length; i++) {
var c = value.charAt(i);
if (c === '"' || c === "'") {
if (c === quote) {
quote = null;
} else if (!quote) {
quote = c;
}
}
if (c === ' ' && !quote) {
isSpace = true;
} else {
if (isSpace) {
parts.push(part);
part = '';
}
isSpace = false;
}
if (!isSpace) {
part += c;
}
}
parts.push(part);
for (var _i = 1; _i < parts.length; _i++) {
part = parts[_i];
var idx = part.indexOf('=');
attributes[part.slice(0, idx)] = part.slice(idx + 1);
}
return {
id: parts[0],
attributes: attributes
};
}
function closeQuote(id, quote, endQuote) {
var level = 0;
for (var i = 0; i < id.length; i++) {
var c = id.charAt(i);
switch (c) {
case quote:
level++;
break;
case endQuote:
level--;
if (level === 0) {
return i;
}
break;
default:
break;
}
}
return -1;
}
function getValue(id, o) {
if (o === undefined) {
return o;
}
var c = id.charAt(0);
switch (c) {
case '':
return o;
case "'":
case '"':
{
var endQuote = id.indexOf(c, 1);
if (endQuote === -1) {
throw new Error('Mismatched quote (' + c + ')');
}
return getValue(id.slice(endQuote + 1), id.slice(1, endQuote));
}
case '.':
return getValue(id.slice(1), o);
case '[':
{
var iClose = closeQuote(id, '[', ']');
if (iClose === -1) {
throw new Error('Mismatched brackets');
}
return getValue(id.slice(iClose + 1), o[get(id.slice(1, iClose))]);
}
default:
{
var iDot = id.indexOf('.');
var iOpen = id.indexOf('[');
if (iDot === -1 && iOpen === -1) {
return o[id];
}
if (iDot >= 0 && (iOpen === -1 || iOpen > iDot)) {
return getValue(id.slice(iDot), o[id.slice(0, iDot)]);
}
return getValue(id.slice(iOpen), o[id.slice(0, iOpen)]);
}
}
}
function get(id) {
if (!Number.isNaN(parseFloat(id))) {
return parseFloat(id);
}
if (id === '.') {
return stack[stack.length - 1];
}
if (id.charAt(0) === '$') {
return getSpecial(id);
}
for (var i = stack.length - 1; i >= 0; i--) {
var o = stack[i];
var value = getValue(id, o);
if (value !== undefined) {
return value;
}
if (id[0] === '.') {
return '';
}
}
return '';
}
function nextChunk() {
var ptr = incPtr();
var chunk = getTemplate()[ptr];
return chunk;
}
function handleValue(chunk) {
appendOut(get(chunk.value.slice(1, -1)));
}
function handleDirective(chunk) {
var key = chunk.id ? chunk.id[0] : '';
if ((0, _library.getPlugin)(key)) {
(0, _library.getPlugin)(key)(chunk);
} else {
handleValue(chunk);
}
}
function handleLiteral(chunk) {
appendOut(chunk.value);
}
function handleChunk() {
var chunk = nextChunk();
if (chunk.value.charAt(0) === '{') {
handleDirective(chunk);
} else {
handleLiteral(chunk);
}
return chunk;
}
function processUntil(directives, process) {
var list = Array.isArray(directives) ? directives : [directives];
var result = { returnVal: [] };
do {
result = process(result); // { chunk, returnVal }
} while (list.indexOf(result.chunk.value) === -1 && result.chunk.value !== '');
if (list.indexOf(result.chunk.value) === -1) {
throw new Error('Mismatched tag: ' + list[0]);
}
return result.returnVal;
}
function readUntil(directives) {
return processUntil(directives, function (result) {
result.chunk = nextChunk();
result.returnVal.push(result.chunk);
return result;
});
}
function skipUntil(directives) {
return processUntil(directives, function (result) {
result.chunk = nextChunk();
result.returnVal = result.chunk.value;
return result;
});
}
function runUntil(directives) {
return processUntil(directives, function (result) {
result.chunk = handleChunk();
result.returnVal = result.chunk.value;
return result;
});
}
function compress(s) {
var isText = s.slice(0, 7) === '{%TEXT}';
var isHTML = s.slice(0, 7) === '{%HTML}';
if (!isHTML && s.charAt(0) !== '<') {
return isText ? s.slice(7) : s;
}
return (isHTML ? s.slice(7) : s).replace(/\n\s*/g, ' ').replace(/\s*</g, '<').replace(/>\s*/g, '>').trim();
}
function compile(t) {
// if its an Array, assume it's already compiled;
if (Array.isArray(t)) {
return t;
}
var templ = compress(t);
function getFragment() {
var idx = templ.indexOf('{');
var value = void 0;
if (idx === 0) {
var idx2 = templ.indexOf('}');
value = templ.slice(0, idx2 + 1);
templ = templ.slice(idx2 + 1);
} else if (idx === -1) {
value = templ;
templ = '';
} else {
value = templ.slice(0, idx);
templ = templ.slice(idx);
}
return value;
}
var result = [];
var fragment = void 0;
var dir = void 0;
var chunk = void 0;
do {
fragment = getFragment();
if (fragment.charAt(0) === '{' && (0, _library.getPlugin)(fragment.charAt(1))) {
dir = parseDirective(fragment.slice(1, -1));
chunk = {
value: fragment,
id: dir.id,
key: dir.id.slice(1),
attributes: dir.attributes
};
} else {
chunk = { value: fragment };
}
result.push(chunk);
} while (fragment !== '');
return result;
}
function isSelfClosing(chunk) {
return chunk.value.slice(-2) === '/}';
}
function endTag(id) {
return '{/' + id + '}';
}
function render(t, data) {
var templ = registry[t] ? registry[t] : compile(t);
pushOutput('');
pushTemplate(templ);
pushStack(data);
try {
runUntil('');
} catch (err) {
cleanup();
throw err;
}
popStack();
popTemplate();
if (outputStack.length === 1) {
(0, _library.postProcess)();
}
return popOutput();
}
function register(name, t) {
registry[name] = compile(t);
}
function isRegistered(name) {
return !!registry[name];
}
function cleanup() {
stack.length = 0;
outputStack.length = 0;
templateStack.length = 0;
ptrStack.length = 0;
specialStack.length = 0;
flags = {};
}
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"+e.id)}})},function(e,t,n){"use strict";n(20),n(19),n(18),n(17),n(16),n(15),n(14),n(13),n(12),n(11),n(10),n(9),n(8),n(7),n(6),n(5),n(4),n(3),n(2)}]);
//# sourceMappingURL=index.js.map

16

package.json
{
"name": "jet-engine",
"version": "1.0.2",
"version": "1.0.3",
"description": "Jet engine",
"main": "index.js",
"main": "dist/index.js",
"scripts": {
"test": "jest --verbose",
"lint": "eslint ./ --ignore-path .gitignore --ext .js",
"build:dist": "babel src --out-dir dist",
"build:babel": "babel src --out-dir dist",
"build:dist": "webpack -p",
"clean": "rimraf dist",

@@ -44,5 +45,10 @@ "build": "npm run clean && npm run build:dist"

"jest": "^22.4.3",
"rimraf": "^2.6.2"
"rimraf": "^2.6.2",
"webpack-cli": "^2.0.14"
},
"dependencies": {}
"dependencies": {
"babel-loader": "^7.1.4",
"path": "^0.12.7",
"webpack": "^4.5.0"
}
}

43

README.md

@@ -6,3 +6,3 @@ #jet-engine

jet-engine is a template engine with syntax very similar to dustjs-linked in. It was written because I needed a template engine that was more compact and less complicated to use than dustjs, but I liked dustjs syntax, compared to other template engines like handlebars. In the few cases in which I wanted templates to behave differently, I implemented my preferred way. I also had no requirement for asynchronous template handing, so I left that out.
jet-engine is a template engine with syntax very similar to dustjs-linked in. It was written because we were trying to produce the smallest bundle possible for a recent project. I liked dustjs syntax, compared to other template engines, and thought this would be a fun side project. I'm very pleased with the result. Each function is written in a separate source file, and it is easy to add additional features. In the few cases in which I wanted templates to behave differently than dustjs, I implemented my preferred approach. We also had no requirement for asynchronous template handing, so I left that out.

@@ -19,18 +19,20 @@ # Usage

All the familiar keywords are implemented,
Nearly all of the familiar keywords are implemented:
```
{value}
{#section}
{?test}
{!not} // also supports {^not} syntax for compatability
{@eq ...} // and other helpers
{>partials}
{<inline-partials}
{+blocks}
{~gt} // and other special characters
{!test} // my preferred negation test
{* comment *} // my preferred comment
{@eq ...} // and many other helpers
{>subroutine} // I prefer this terminology
{<definition} // ditto
{+block}
{~gt} // and several other other special characters
```
# Partials
# Subroutines
Register a partial like this
Register a subroutine like this

@@ -45,2 +47,21 @@ ```

# Many more examples and additional documentation to follow
# Context
The data context is exactly as you would expect form a sophisticated engine.
An initial context is set when the render() function is first invoked. Addition conexts are pushed and popped from context stack by the following commands:
```
{#names} // value of "names" is pushed onto the context stack
{>subroutine name="Jim"} // { name: "Jim" } is pushed onto the context stack
{@eq key="size" value=17} // { key: "size", value: 17 } is pushed onto the stack (explained in Helpers section below)
```
Data references are resolved from the top of the context stack downward, with the following exceptions:
```
{.} refers to the entire context currently on the top of the stack
{.value} references "value" only if it exists on the top of the stack. Searching will not continue downwards in the stack.
```
If a reference cannot be found on the context stack, an empty string `''` is returned.
*provide examples*
## Document each keyword funciton

7

src/index.js

@@ -311,3 +311,3 @@ import { getPlugin, postProcess } from './library';

if (!isHTML && s.charAt(0) !== '<') {
return isText ? s.slice(7) : s;
return (isText ? s.slice(7) : s).replace(/{\*.*?\*}/g, '');
}

@@ -319,5 +319,10 @@

.replace(/>\s*/g, '>')
.replace(/{\*.*?\*}/g, '')
.trim();
}
export function loader(content) {
return `module.exports = ${JSON.stringify(compress(content))};`;
}
export function compile(t) {

@@ -324,0 +329,0 @@ // if its an Array, assume it's already compiled;

1

src/not.js

@@ -23,2 +23,1 @@ import { registerPlugin } from './library';

registerPlugin('!', not);
registerPlugin('^', not); // for dustjs syntax compatability
dist/define.js
dist/end.js
dist/eq.js
dist/first.js
dist/gt.js
dist/gte.js
dist/helper.js
dist/last.js
dist/library.js
dist/lt.js
dist/lte.js
dist/math.js
dist/ne.js
dist/not.js
dist/plugins.js
dist/ref.js
dist/section.js
dist/sep.js
dist/special.js
dist/subroutine.js
dist/test.js
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