magix-composer/plugins/js-header.js

compile html, style and javascript files into javascript

//处理文件的头信息
//let configs = require('./util-config');
let snippetReg = /(?:^|[\r\n])\s*(?:\/{2,})?\s*(['"])?#(?:snippet|gallery-config|gconfig|g-config|raw|gcfg)(?:[^\r\n]+)?\1\s*;?/g;
//let excludeReg = /(?:^|[\r\n])\s*(?:\/{2,})?\s*(['"])?#exclude[\(\[]([\w,]+)[\)\]]\1\s*;?/g;
let excludeReg1 = /(?:^|[\r\n])\s*(?:\/{2,})?\s*(['"])?#exclude\s*=\s*([\w,_]+)\1\s*;?/g;
let loaderReg = /(?:^|[\r\n])\s*(?:\/{2,})?\s*(['"])?#loader\s*=\s*([\w]+)\1\s*;?/g;
//let checkerReg = /(?:^|[\r\n])\s*(?:\/{2,})?\s*(['"])?#((?:un)?check)\[([\w,]+)\]\1\s*;?/g;

//let checkerReg1 = /(?:^|[\r\n])\s*(?:\/{2,})?\s*(['"])?#((?:un)?check)\s*=\s*([\w,]+)\1\s*;?/g;
let exRequiresReg = /(?:^|[\r\n])\s*(?:\/{2,})?\s*(['"])?#(?:(?:no|non|ex)requires)\s*=\s*([^\r\n;]+)\1\s*;?/g;
//let jsThisAliasReg = /(?:^|[\r\n])\s*(?:\/{2,})?\s*(['"])?#this\s*=\s*([\w_])\1\s*;?/g;
module.exports = (content) => {
    let execBeforeProcessor = true,
        execAfterProcessor = true,
        ignoreAllProcessor = false;
    let addWrapper = true;
    let excludeProcessor = (m, q, keys) => {
        keys = keys.split(',');
        if (keys.indexOf('define') > -1 ||
            keys.indexOf('loader') > -1) {
            addWrapper = false;
        }
        if (keys.indexOf('before') > -1 ||
            keys.indexOf('beforeProcessor') > -1) {
            execBeforeProcessor = false;
        }
        if (keys.indexOf('after') > -1 ||
            keys.indexOf('afterProcessor') > -1) {
            execAfterProcessor = false;
        }
        if (keys.indexOf('allProcessor') > -1 ||
            keys.indexOf('all') > -1) {
            ignoreAllProcessor = true;
        }
        return '\r\n';
    };
    if (ignoreAllProcessor) {
        execBeforeProcessor = execAfterProcessor = false;
    }
    content = content
        //.replace(excludeReg, excludeProcessor)
        .replace(excludeReg1, excludeProcessor);
    // let checkerCfg = Object.assign({}, configs.checker);
    // let checkerProcessor = (m, q, key, value) => {
    //     let values = value.split(',');
    //     for (let v of values) {
    //         v = v.trim();
    //         if (key == 'check') {
    //             checkerCfg[v] = true;
    //         } else {
    //             checkerCfg[v] = false;
    //         }
    //     }
    //     return '\r\n';
    // };
    //content = content
    //.replace(checkerReg, checkerProcessor)
    //.replace(checkerReg1, checkerProcessor);
    //let thisAlias = configs.thisAlias;
    /*content = content.replace(jsThisAliasReg, (m, q, value) => {
        thisAlias = value;
        return '\r\n';
    });*/
    snippetReg.lastIndex = 0;
    let isSnippet = snippetReg.test(content);
    content = content.replace(snippetReg, '\n');
    let loader;
    content = content.replace(loaderReg, (m, q, type) => {
        loader = type;
        return '\r\n';
    });
    let exRequires = [];
    let noRequires = false;
    content = content.replace(exRequiresReg, (m, q, reqs) => {
        reqs = reqs.trim();
        if (reqs == 'true') {
            noRequires = true;
        } else {
            exRequires = reqs.split(',').map(i => {
                i = i.trim();
                if (i.startsWith('\'') && i.endsWith('\'')) {
                    i = i.slice(1, -1);
                }
                if (!i.startsWith('"') && !i.endsWith('"')) {
                    i = `"${i}"`;
                }
                return i;
            });
        }
        return '\r\n';
    });
    return {
        content,
        isSnippet,
        addWrapper,
        //checkerCfg,
        loader,
        exRequires,
        noRequires,
        //thisAlias,
        ignoreAllProcessor,
        execBeforeProcessor,
        execAfterProcessor
    };
};