diff --git a/src/error.js b/src/error.js index b44a0bda0..1011dbde2 100644 --- a/src/error.js +++ b/src/error.js @@ -2,7 +2,7 @@ function TokenizationError(message, input, line) { Error.captureStackTrace(this, this.constructor); this.name = this.constructor.name; - this.message = message || ""; + this.message = message; this.input = input; this.line = line; } @@ -14,7 +14,7 @@ function ParseError(message, input, line, e) { this.name = this.constructor.name; this.originalError = e; - this.message = message || ""; + this.message = message; this.input = input; this.line = line; } diff --git a/src/render.js b/src/render.js index ebfc89d38..fb9e037b7 100644 --- a/src/render.js +++ b/src/render.js @@ -4,7 +4,7 @@ const Promise = require('any-promise'); var render = { renderTemplates: function(templates, scope, opts) { - if(!scope) throw new Error('unable to evalTemplates: scope undefined'); + if (!scope) throw new Error('unable to evalTemplates: scope undefined'); opts = opts || {}; opts.strict_filters = opts.strict_filters || false; @@ -15,80 +15,54 @@ var render = { // emptyPromise.then(renderTag(template0).then(renderTag(template1).then(renderTag(template2)... var lastPromise = templates.reduce((promise, template) => { return promise.then(() => { - if (scope.safeGet('forloop.skip')) { - return Promise.resolve(''); - } - if (scope.safeGet('forloop.stop')) { - throw new Error('forloop.stop'); // this will stop/break the sequential promise chain and go to the catch - } + var promiseLink = Promise.resolve(''); + switch (template.type) { + case 'tag': + // Add Promises to the chain + promiseLink = this.renderTag(template, scope, this.register) + .then((partial) => { + if (partial === undefined) { + return true; // basically a noop (do nothing) + } + return html += partial; + }); + break; + case 'html': + promiseLink = Promise.resolve(template.value) + .then((partial) => { + return html += partial; + }); + break; + case 'output': + var val = this.evalOutput(template, scope, opts); + promiseLink = Promise.resolve(val === undefined ? '' : stringify(val)) + .then((partial) => { + return html += partial; + }); + break; + } - var promiseLink = Promise.resolve(''); - switch (template.type) { - case 'tag': - // Add Promises to the chain - promiseLink = this.renderTag(template, scope, this.register) - .then((partial) => { - if (partial === undefined) { - return true; // basically a noop (do nothing) - } - return html += partial; - }); - break; - case 'html': - promiseLink = Promise.resolve(template.value) - .then((partial) => { - return html += partial; - }); - break; - case 'output': - var val = this.evalOutput(template, scope, opts); - promiseLink = Promise.resolve(val === undefined ? '' : stringify(val)) - .then((partial) => { - return html += partial; - }); - break; - } - - return promiseLink; - }) - .catch((error) => { - if (error.message === 'forloop.skip') { - // the error is a controlled, purposeful stop. so just return the html that we have up to this point - return html; - } else { - // rethrow actual error - throw error; - } - }); + return promiseLink; + }); }, Promise.resolve('')); // start the reduce chain with a resolved Promise. After first run, the "promise" argument // in our reduce callback will be the returned promise from our "then" above. In this // case, that's the promise returned from this.renderTag or a resolved promise with raw html. - return lastPromise - .then((renderedHtml) => { - return renderedHtml; - }) - .catch((error) => { - throw error; - }); - + return lastPromise; }, renderTag: function(template, scope, register) { if (template.name === 'continue') { - scope.set('forloop.skip', true); return Promise.resolve(''); } if (template.name === 'break') { - scope.set('forloop.stop', true); - scope.set('forloop.skip', true); return Promise.reject(new Error('forloop.stop')); // this will stop the sequential promise chain } return template.render(scope, register); }, evalOutput: function(template, scope, opts) { - if(!scope) throw new Error('unable to evalOutput: scope undefined'); + if (!scope) throw new Error('unable to evalOutput: scope undefined'); var val = Syntax.evalExp(template.initial, scope); template.filters.some(filter => { if (filter.error) { diff --git a/src/scope.js b/src/scope.js index a7fd15231..798805c04 100644 --- a/src/scope.js +++ b/src/scope.js @@ -2,162 +2,160 @@ const _ = require('./util/underscore.js'); const lexical = require('./lexical.js'); var Scope = { - safeGet: function(str) { - var i; - // get all - if (str === undefined) { - var ctx = {}; - for (i = this.scopes.length - 1; i >= 0; i--) { - var scp = this.scopes[i]; - for (var k in scp) { - if (scp.hasOwnProperty(k)) { - ctx[k] = scp[k]; - } - } - } - return ctx; - } - // get one path - for (i = this.scopes.length - 1; i >= 0; i--) { - var v = this.getPropertyByPath(this.scopes[i], str); - if (v !== undefined) return v; - } - }, - get: function(str) { - var val = this.safeGet(str); - if (val === undefined && this.opts.strict) { - throw new Error(`[strict_variables] undefined variable: ${str}`); - } - return val; - }, - set: function(k, v) { - this.setPropertyByPath(this.scopes[this.scopes.length - 1], k, v); - return this; - }, - push: function(ctx) { - if (!ctx) throw new Error(`trying to push ${ctx} into scopes`); - return this.scopes.push(ctx); - }, - pop: function() { - return this.scopes.pop(); - }, + safeGet: function(str) { + var i; + // get all + if (str === undefined) { + var ctx = {}; + for (i = this.scopes.length - 1; i >= 0; i--) { + var scp = this.scopes[i]; + for (var k in scp) { + if (scp.hasOwnProperty(k)) { + ctx[k] = scp[k]; + } + } + } + return ctx; + } + // get one path + for (i = this.scopes.length - 1; i >= 0; i--) { + var v = this.getPropertyByPath(this.scopes[i], str); + if (v !== undefined) return v; + } + }, + get: function(str) { + var val = this.safeGet(str); + if (val === undefined && this.opts.strict) { + throw new Error(`[strict_variables] undefined variable: ${str}`); + } + return val; + }, + set: function(k, v) { + this.setPropertyByPath(this.scopes[this.scopes.length - 1], k, v); + return this; + }, + push: function(ctx) { + if (!ctx) throw new Error(`trying to push ${ctx} into scopes`); + return this.scopes.push(ctx); + }, + pop: function() { + return this.scopes.pop(); + }, unshift: function(ctx) { - if (!ctx) throw new Error('trying to push $(ctx) into scopes'); + if (!ctx) throw new Error(`trying to push ${ctx} into scopes`); return this.scopes.unshift(ctx); }, shift: function() { return this.scopes.shift(); }, - setPropertyByPath: function(obj, path, val) { - if (_.isString(path)) { - var paths = path.replace(/\[/g, '.').replace(/\]/g, '').split('.'); - for (var i = 0; i < paths.length; i++) { - var key = paths[i]; - if (i === paths.length - 1) { - return obj[key] = val; - } - if (undefined === obj[key]) obj[key] = {}; - // case for readonly objects - obj = obj[key] || {}; - } - return obj; - } - return obj[path] = val; - }, + setPropertyByPath: function(obj, path, val) { + if (_.isString(path)) { + var paths = path.replace(/\[/g, '.').replace(/\]/g, '').split('.'); + for (var i = 0; i < paths.length; i++) { + var key = paths[i]; + if (i === paths.length - 1) { + return obj[key] = val; + } + if (undefined === obj[key]) obj[key] = {}; + // case for readonly objects + obj = obj[key] || {}; + } + } + }, - getPropertyByPath: function(obj, path) { - if (_.isString(path) && path.length) { - var paths = this.propertyAccessSeq(path); - paths.forEach(p => obj = obj && obj[p]); - return obj; - } - return obj[path]; - }, + getPropertyByPath: function(obj, path) { + if (_.isString(path) && path.length) { + var paths = this.propertyAccessSeq(path); + paths.forEach(p => obj = obj && obj[p]); + return obj; + } + return obj[path]; + }, - /* - * Parse property access sequence from access string - * @example - * accessSeq("foo.bar") // ['foo', 'bar'] - * accessSeq("foo['bar']") // ['foo', 'bar'] - * accessSeq("foo['b]r']") // ['foo', 'b]r'] - * accessSeq("foo[bar.coo]") // ['foo', 'bar'], for bar.coo == 'bar' - */ - propertyAccessSeq: function(str) { - var seq = [], - name = ''; - for (var i = 0; i < str.length; i++) { - if (str[i] === '[') { - seq.push(name); - name = ''; + /* + * Parse property access sequence from access string + * @example + * accessSeq("foo.bar") // ['foo', 'bar'] + * accessSeq("foo['bar']") // ['foo', 'bar'] + * accessSeq("foo['b]r']") // ['foo', 'b]r'] + * accessSeq("foo[bar.coo]") // ['foo', 'bar'], for bar.coo == 'bar' + */ + propertyAccessSeq: function(str) { + var seq = [], + name = ''; + for (var i = 0; i < str.length; i++) { + if (str[i] === '[') { + seq.push(name); + name = ''; - var delemiter = str[i + 1]; - // foo[bar.coo] - if (delemiter !== "'" && delemiter !== '"') { - var j = matchRightBracket(str, i + 1); - if (j === -1) { - throw new Error(`unbalanced []: ${str}`); - } - name = str.slice(i + 1, j); - // foo[1] - if(lexical.isInteger(name)){ - seq.push(name); - } - // foo["bar"] - else{ - seq.push(this.get(name)); - } - name = ''; - i = j; - } - // foo["bar"] - else { - var j = str.indexOf(delemiter, i + 2); - if (j === -1) { - throw new Error(`unbalanced ${delemiter}: ${str}`); - } - name = str.slice(i + 2, j); - seq.push(name); - name = ''; - i = j + 1; - } - } - // foo.bar - else if (str[i] === ".") { - seq.push(name); - name = ''; - } - //foo.bar - else { - name += str[i]; - } - } - if (name.length) seq.push(name); - return seq; - } + var delemiter = str[i + 1]; + // foo[bar.coo] + if (delemiter !== "'" && delemiter !== '"') { + var j = matchRightBracket(str, i + 1); + if (j === -1) { + throw new Error(`unbalanced []: ${str}`); + } + name = str.slice(i + 1, j); + // foo[1] + if(lexical.isInteger(name)){ + seq.push(name); + } + // foo["bar"] + else{ + seq.push(this.get(name)); + } + name = ''; + i = j; + } + // foo["bar"] + else { + var j = str.indexOf(delemiter, i + 2); + if (j === -1) { + throw new Error(`unbalanced ${delemiter}: ${str}`); + } + name = str.slice(i + 2, j); + seq.push(name); + name = ''; + i = j + 1; + } + } + // foo.bar + else if (str[i] === ".") { + seq.push(name); + name = ''; + } + //foo.bar + else { + name += str[i]; + } + } + if (name.length) seq.push(name); + return seq; + } }; function matchRightBracket(str, begin) { - var stack = 1; // count of '[' - count of ']' - for (var i = begin; i < str.length; i++) { - if (str[i] === '[') { - stack++; - } - if (str[i] === ']') { - stack--; - if (stack === 0) { - return i; - } - } - } - return -1; + var stack = 1; // count of '[' - count of ']' + for (var i = begin; i < str.length; i++) { + if (str[i] === '[') { + stack++; + } + if (str[i] === ']') { + stack--; + if (stack === 0) { + return i; + } + } + } + return -1; } exports.factory = function(_ctx, opts) { - opts = opts || {}; - opts.strict = opts.strict || false; + opts = opts || {}; + opts.strict = opts.strict || false; - var scope = Object.create(Scope); - scope.opts = opts; - scope.scopes = [_ctx || {}]; - return scope; + var scope = Object.create(Scope); + scope.opts = opts; + scope.scopes = [_ctx || {}]; + return scope; }; diff --git a/src/tokenizer.js b/src/tokenizer.js index ea7056934..874671a45 100644 --- a/src/tokenizer.js +++ b/src/tokenizer.js @@ -1,9 +1,12 @@ const lexical = require('./lexical.js'); const TokenizationError = require('./error.js').TokenizationError; +const _ = require('./util/underscore.js'); function parse(html) { var tokens = []; - if (!html) return tokens; + if (!_.isString(html)) { + throw new TokenizationError('illegal input type'); + } var syntax = /({%(.*?)%})|({{(.*?)}})/g; var result, htmlFragment, token; diff --git a/test/filter.js b/test/filter.js index 52bc6bc0e..130b071b1 100644 --- a/test/filter.js +++ b/test/filter.js @@ -10,7 +10,7 @@ var Scope = require('../src/scope.js'); describe('filter', function() { var scope; - beforeEach(function(){ + beforeEach(function() { filter.clear(); scope = Scope.factory(); }); @@ -20,7 +20,13 @@ describe('filter', function() { expect(result.error).to.be.an('Error'); }); - it('should parse argument syntax', function(){ + it('should throw when filter name illegal', function() { + expect(function() { + filter.construct('/'); + }).to.throw(/illegal filter/); + }); + + it('should parse argument syntax', function() { filter.register('foo', x => x); var f = filter.construct('foo: a, "b"'); @@ -28,22 +34,22 @@ describe('filter', function() { expect(f.args).to.deep.equal(['a', '"b"']); }); - it('should register a simple filter', function(){ + it('should register a simple filter', function() { filter.register('upcase', x => x.toUpperCase()); expect(filter.construct('upcase').render('foo', scope)).to.equal('FOO'); }); - it('should register a argumented filter', function(){ + it('should register a argumented filter', function() { filter.register('add', (a, b) => a + b); expect(filter.construct('add: 2').render(3, scope)).to.equal(5); }); - it('should register a multi-argumented filter', function(){ + it('should register a multi-argumented filter', function() { filter.register('add', (a, b, c) => a + b + c); expect(filter.construct('add: 2, "c"').render(3, scope)).to.equal("5c"); }); - it('should call filter with corrct arguments', function(){ + it('should call filter with corrct arguments', function() { var spy = sinon.spy(); filter.register('foo', spy); filter.construct('foo: 33').render('foo', scope); diff --git a/test/parser.js b/test/parser.js index 366a3b937..0924bc6bf 100644 --- a/test/parser.js +++ b/test/parser.js @@ -13,7 +13,7 @@ var Template = require('../src/parser.js'); describe('template', function() { var scope, template, add = (l, r) => l + r; - beforeEach(function(){ + beforeEach(function() { filter.clear(); filter.register('add', add); @@ -21,6 +21,12 @@ describe('template', function() { template = Template(tag, filter); }); + it('should throw when output string illegal', function() { + expect(function() { + template.parseOutput('/'); + }).to.throw(/illegal output string/); + }); + it('should parse output string', function() { var tpl = template.parseOutput('foo'); expect(tpl.type).to.equal('output'); diff --git a/test/render.js b/test/render.js index 08fe9f1ec..9826a77a6 100644 --- a/test/render.js +++ b/test/render.js @@ -28,8 +28,16 @@ describe('render', function() { render = Render(); }); - it('should render html', function() { - return render.renderTemplates([{type: 'html', value: '
'}], scope).should.eventually.equal('
'); + describe('.renderTemplates()', function(){ + it('should throw when scope undefined', function() { + expect(function(){ + render.renderTemplates([]); + }).to.throw(/scope undefined/); + }); + + it('should render html', function() { + return render.renderTemplates([{type: 'html', value: '
'}], scope).should.eventually.equal('
');
+ });
});
it('should eval filter with correct arguments', function() {
@@ -43,10 +51,17 @@ describe('render', function() {
expect(time).to.have.been.calledWith('y', 2);
});
- it('should eval output', function() {
- filter.register('date', (l, r) => l + r);
- filter.register('time', (l, r) => l + 3 * r);
- var tpl = Template.parseOutput('foo.bar[0] | date: "b" | time:2');
- expect(render.evalOutput(tpl, scope)).to.equal('ab6');
+ describe('.evalOutput()', function(){
+ it('should throw when scope undefined', function() {
+ expect(function(){
+ render.evalOutput();
+ }).to.throw(/scope undefined/);
+ });
+ it('should eval output', function() {
+ filter.register('date', (l, r) => l + r);
+ filter.register('time', (l, r) => l + 3 * r);
+ var tpl = Template.parseOutput('foo.bar[0] | date: "b" | time:2');
+ expect(render.evalOutput(tpl, scope)).to.equal('ab6');
+ });
});
});
diff --git a/test/scope.js b/test/scope.js
index 7591438ac..1fe6fdd2b 100644
--- a/test/scope.js
+++ b/test/scope.js
@@ -4,126 +4,165 @@ const expect = chai.expect;
var Scope = require('../src/scope.js');
describe('scope', function() {
- var scope, ctx;
- beforeEach(function() {
- ctx = {
- foo: 'zoo',
- bar: {
- zoo: 'coo',
- "Mr.Smith": 'John',
- arr: ['a', 'b']
- }
- };
- scope = Scope.factory(ctx);
- });
+ var scope, ctx;
+ beforeEach(function() {
+ ctx = {
+ foo: 'zoo',
+ bar: {
+ zoo: 'coo',
+ "Mr.Smith": 'John',
+ arr: ['a', 'b']
+ }
+ };
+ scope = Scope.factory(ctx);
+ });
- describe('#propertyAccessSeq()', function() {
- it('should handle dot syntax', function() {
- expect(scope.propertyAccessSeq('foo.bar'))
- .to.deep.equal(['foo', 'bar']);
- });
- it('should handle [ {% for p in a[1]%} {{foo | date: "%Y-%m-%d"}}