-
Notifications
You must be signed in to change notification settings - Fork 10
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
perf: switch to tempura for templating
- Loading branch information
1 parent
4ce644e
commit 3a5d6a1
Showing
7 changed files
with
186 additions
and
48 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
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 |
|---|---|---|
| @@ -1,5 +1,3 @@ | ||
| 'use strict'; | ||
|
|
||
| function domReady(cb) { | ||
| document.addEventListener("DOMContentLoaded", cb, false); | ||
| } | ||
|
|
||
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 +1,138 @@ | ||
| const ESCAPE = /[&"<]/g, CHARS = { | ||
| '"': '"', | ||
| '&': '&', | ||
| '<': '<', | ||
| }; | ||
|
|
||
| const ENDLINES = /[\r\n]+$/g; | ||
| const CURLY = /{{{?\s*([\s\S]*?)\s*}}}?/g; | ||
| const ARGS = /([a-zA-Z$_][^\s=]*)\s*=\s*((["`'])(?:(?=(\\?))\4.)*?\3|{[^}]*}|\[[^\]]*]|\S+)/g; | ||
|
|
||
| // $$1 = escape() | ||
| // $$2 = extra blocks | ||
| // $$3 = template values | ||
| function gen(input, options) { | ||
| options = options || {}; | ||
|
|
||
| let char, num, action, tmp; | ||
| let last = CURLY.lastIndex = 0; | ||
| let wip='', txt='', match, inner; | ||
|
|
||
| let extra=options.blocks||{}, stack=[]; | ||
| let initials = new Set(options.props||[]); | ||
|
|
||
| function close() { | ||
| if (wip.length > 0) { | ||
| txt += (txt ? 'x+=' : '=') + '`' + wip + '`;'; | ||
| } else if (txt.length === 0) { | ||
| txt = '="";' | ||
| } | ||
| wip = ''; | ||
| } | ||
|
|
||
| while (match = CURLY.exec(input)) { | ||
| wip += input.substring(last, match.index).replace(ENDLINES, ''); | ||
| last = match.index + match[0].length; | ||
|
|
||
| inner = match[1].trim(); | ||
| char = inner.charAt(0); | ||
|
|
||
| if (char === '!') { | ||
| // comment, continue | ||
| } else if (char === '#') { | ||
| close(); | ||
| [, action, inner] = /^#\s*(\w[\w\d]+)\s*([^]*)/.exec(inner); | ||
|
|
||
| if (action === 'expect') { | ||
| inner.split(/[\n\r\s\t]*,[\n\r\s\t]*/g).forEach(key => { | ||
| initials.add(key); | ||
| }); | ||
| } else if (action === 'var') { | ||
| num = inner.indexOf('='); | ||
| tmp = inner.substring(0, num++).trim(); | ||
| inner = inner.substring(num).trim().replace(/[;]$/, ''); | ||
| txt += `var ${tmp}=${inner};`; | ||
| } else if (action === 'each') { | ||
| num = inner.indexOf(' as '); | ||
| stack.push(action); | ||
| if (!~num) { | ||
| txt += `for(var i=0,$$a=${inner};i<$$a.length;i++){`; | ||
| } else { | ||
| tmp = inner.substring(0, num).trim(); | ||
| inner = inner.substring(num + 4).trim(); | ||
| let [item, idx='i'] = inner.replace(/[()\s]/g, '').split(','); // (item, idx?) | ||
| txt += `for(var ${idx}=0,${item},$$a=${tmp};${idx}<$$a.length;${idx}++){${item}=$$a[${idx}];`; | ||
| } | ||
| } else if (action === 'if') { | ||
| txt += `if(${inner}){`; | ||
| stack.push(action); | ||
| } else if (action === 'elif') { | ||
| txt += `}else if(${inner}){`; | ||
| } else if (action === 'else') { | ||
| txt += `}else{`; | ||
| } else if (action in extra) { | ||
| if (inner) { | ||
| tmp = []; | ||
| // parse arguments, `defer=true` -> `{ defer: true }` | ||
| while (match = ARGS.exec(inner)) tmp.push(match[1] + ':' + match[2]); | ||
| inner = tmp.length ? '{' + tmp.join() + '}' : ''; | ||
| } | ||
| inner = inner || '{}'; | ||
| tmp = options.async ? 'await ' : ''; | ||
| wip += '${' + tmp + '$$2.' + action + '(' + inner + ',$$2)}'; | ||
| } else { | ||
| throw new Error(`Unknown "${action}" block`); | ||
| } | ||
| } else if (char === '/') { | ||
| action = inner.substring(1); | ||
| inner = stack.pop(); | ||
| close(); | ||
| if (action === inner) txt += '}'; | ||
| else throw new Error(`Expected to close "${inner}" block; closed "${action}" instead`); | ||
| } else if (match[0].charAt(2) === '{') { | ||
| wip += '${' + inner + '}'; // {{{ raw }}} | ||
| } else { | ||
| wip += '${$$1(' + inner + ')}'; | ||
| } | ||
| } | ||
|
|
||
| if (stack.length > 0) { | ||
| throw new Error(`Unterminated "${stack.pop()}" block`); | ||
| } | ||
|
|
||
| if (last < input.length) { | ||
| wip += input.substring(last).replace(ENDLINES, ''); | ||
| } | ||
|
|
||
| close(); | ||
|
|
||
| tmp = initials.size ? `{${ [...initials].join() }}=$$3,x` : ' x'; | ||
| return `var${tmp + txt}return x`; | ||
| } | ||
|
|
||
| export function esc(value) { | ||
| if (typeof value !== 'string') return value; | ||
| let last=ESCAPE.lastIndex=0, tmp=0, out=''; | ||
| while (ESCAPE.test(value)) { | ||
| tmp = ESCAPE.lastIndex - 1; | ||
| out += value.substring(last, tmp) + CHARS[value[tmp]]; | ||
| last = tmp + 1; | ||
| } | ||
| return out + value.substring(last); | ||
| } | ||
|
|
||
| export function compile(input, options={}) { | ||
| return new (options.async ? (async()=>{}).constructor : Function)( | ||
| '$$1', '$$2', '$$3', gen(input, options) | ||
| ).bind(0, options.escape || esc, options.blocks); | ||
| } | ||
|
|
||
| export function transform(input, options={}) { | ||
| return ( | ||
| options.format === 'cjs' | ||
| ? 'var $$1=require("tempura").esc;module.exports=' | ||
| : 'import{esc as $$1}from"tempura";export default ' | ||
| ) + ( | ||
| options.async ? 'async ' : '' | ||
| ) + 'function($$3,$$2){'+gen(input, options)+'}'; | ||
| } |
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