如何确保TypeScript文件中没有非ASCII字符？

Question

确保我的TypeScript和相应的JavaScript文件中只有ASCII字符的最佳方法是什么？

Answer 1

它还没有规则。

自定义规则

来自：https://github.com/palantir/tslint/#writing-custom-rules

以下是一个想法：

import * as ts from "typescript";
import * as Lint from "tslint/lib/lint";

export class Rule extends Lint.Rules.AbstractRule {
    public static FAILURE_STRING = "unicode forbidden";

    public apply(sourceFile: ts.SourceFile): Lint.RuleFailure[] {
        return this.applyWithWalker(new SourcefileWalker(sourceFile, this.getOptions()));
    }
}

// The walker takes care of all the work.
class SourceFileWalker extends Lint.RuleWalker {
    public visitSourceFile(node: ts.SourceFile) {


        // ACTUAL TODO: 
        const text = node.getFullText();

        // Match ascii only  
        if (!isASCII(text)){
            // create a failure at the current position
            this.addFailure(this.createFailure(node.getStart(), node.getWidth(), Rule.FAILURE_STRING));
        }

        // call the base version of this visitor to actually parse this node
        super.visitSourceFile(node);
    }
}

function isASCII(str, extended) {
   return (extended ? /^[\x00-\xFF]*$/ : /^[\x00-\x7F]*$/).test(str);
}

这是一个足够好的示例，我留给您进行测试和调试。享受