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Fixed minified code

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This commit is contained in:
Christoph Oberhofer
2015-10-07 00:19:37 +02:00
parent 03e9bee015
commit 9295e41655
8 changed files with 110 additions and 168 deletions
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tasks/uglyasm.js
+24 -17
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@@ -11,14 +11,17 @@ module.exports = function(grunt) {
var code = fs.readFileSync('dist/quagga.js', 'utf-8'),
minifiedCode = fs.readFileSync('dist/quagga.min.js', 'utf-8'),
commentEnd = '/* @preserve ASM END */',
asmStartIdx = code.indexOf('/* @preserve ASM BEGIN */'),
asmEndIdx = code.indexOf(commentEnd),
asmCode = code.substring(asmStartIdx, asmEndIdx + commentEnd.length),
asmFunctionRegex = /function (\w+)\(\w+,\s*\w+,\s*\w+\)\s*\{\s*"use asm";/,
moduleFunctionRegex = /function\s*\((\w+,\s*\w+)\)\s*\{\s*\/\* \@preserve ASM BEGIN \*\//,
commentStartIdx = code.indexOf("/* @preserve ASM BEGIN */"),
asmEndIdxTmp = code.indexOf(commentEnd),
asmEndIdx = code.indexOf("}", asmEndIdxTmp),
asmCodeTmp = code.substring(commentStartIdx - Math.min(500, commentStartIdx),
asmEndIdx + 1),
asmStartIdx = asmCodeTmp.search(moduleFunctionRegex),
asmCode = asmCodeTmp.substring(asmStartIdx),
asmModule,
asmModuleName,
asmCodeMinified,
asmMinifiedModuleName;
moduleArg1,
asmCodeMinified;
asmCodeMinified = asmCode
.replace(/\s*\/\/.*/g, '') // remove single-line comments
@@ -29,28 +32,32 @@ module.exports = function(grunt) {
grunt.log.debug(asmCodeMinified);
asmModule = asmCode.match(asmFunctionRegex);
asmModule = moduleFunctionRegex.exec(asmCode);
if (!asmModule) {
grunt.log.error("No ASM module found");
return;
}
asmModuleName = asmModule[1];
grunt.log.debug(asmModuleName);
moduleArg1 = asmModule[1];
grunt.log.debug(moduleArg1);
asmModule = minifiedCode.match(asmFunctionRegex);
if (!asmModule) {
var insertionPoint = minifiedCode.search(moduleFunctionRegex);
if (insertionPoint === -1) {
grunt.log.error("No ASM module found in minified file");
return;
}
grunt.log.debug(insertionPoint);
asmMinifiedModuleName = asmModule[1];
grunt.log.debug(asmMinifiedModuleName);
var insertionPointEnd = minifiedCode.indexOf(commentEnd, insertionPoint);
insertionPointEnd = minifiedCode.indexOf("}", insertionPointEnd) + 1;
asmCodeMinified = asmCodeMinified.replace(asmModuleName, asmMinifiedModuleName);
grunt.log.debug(insertionPointEnd);
minifiedCode = minifiedCode.substring(0, insertionPoint)
+ asmCodeMinified
+ minifiedCode.substring(insertionPointEnd);
minifiedCode = minifiedCode.replace(/\/\* @preserve ASM BEGIN \*\/[^]*?\/\* @preserve ASM END \*\//, asmCodeMinified);
fs.writeFileSync('dist/quagga.min.js', minifiedCode);
grunt.log.ok('dist/quagga.min.js written');
});
};
};