我在一个开源项目中工作。它基本上从查询字符串生成json响应。
错误。
我正在测试该项目，但发现了正则表达式中的错误（如果我不是上帝:(）
这是我正在使用的正则表达式。
(?:(\{).*?(\})|[^,])+
基本上，当匹配模式时，它会分割字符串 例子。
// string example
a:{anyhing},b:{anything},c:{anything}
// expected
[
"a:{anyhing}",
"b:{anything}",
"c:{anything}"
]
案例1.成功 我要传递的字符串
"a:{m:st,n:{x:st}},b:{m:st}"
预期结果：成功
[
"a:{m:st,n:{x:st}}",
"b:{m:st}"
]
情况2。失败 我要传递的字符串
"a:{n:{x:st},m:st},b:{m:st}"
意外结果
[
"a:{n:{x:st}",
"m:st}",
"b:{m:st}",
]
预期结果：应该类似于案例1
[
"a:{n:{x:st},m:st}",
"b:{m:st}"
]
谢谢。
请在此处随意阅读有关该项目的信息 https://github.com/rollrodrig/customjsonbuilder 和这里 https://www.npmjs.com/package/customjsonbuilder
编辑：
该字符串可能像这样嵌套{}
// string
"a:{m: {x:str,y:str}, n:str },b:{m:str,n:str},c:{t:string}"
// expected
[
"a:{m: {x:str,y:str}, n:str }",
"b:{m:str,n:str}",
"c:{t:string}",
]
// string
"a:{m: {x:{d:str,i:str},y:str}, n:str },b:{m:str,n:str},c:{t:string}"
// expected
[
"a:{m: {x:{d:str,i:str},y:str}, n:str }",
"b:{m:str,n:str}",
"c:{t:string}"
]
// string
"a:{n:{x:{h:{i:string},x:{d:string}}},m:{h:string}},b:{k:string,l:{u:str,r:str}},c:{t:string}"
// expected
[
"a:{n:{x:{h:{i:string},x:{d:string}}},m:{h:string}}",
"b:{k:string,l:{u:str,r:str}}",
"c:{t:string}"
]
答案 0 :(得分：0)
好吧，经过一番思考，我决定更改代码。这次我决定不使用正则表达式。
export const comaDivider = (string:string) => {
let braces:number = 0;
let indexes:number[] = [];
let divided:string[] = [];
let l = string.length;
for (let i = 0; i < l; i++) {
let c = string.charAt(i);
if(c === "{")
braces++;
if(c === "}")
braces--;
if(c === "," && braces === 0)
indexes.push(i);
}
indexes.push(string.length);
indexes.reduce((prev:number,next:number)=>{
divided.push(string.substring(prev,next));
return next+1;
},0)
return divided;
}
单元测试成功通过
it('run', () => {
expect(comaDivider("name:string,email:string"))
.to.deep.equal(["name:string","email:string"]);
expect(comaDivider("name:string,nicks:{first:string,last:string}"))
.to.deep.equal(["name:string","nicks:{first:string,last:string}"]);
expect(comaDivider("name:string,email:string,nicks:{first:string,last:string}"))
.to.deep.equal(["name:string","email:string","nicks:{first:string,last:string}"]);
expect(comaDivider("name:string,nicks:{first:string,last:string},email:string"))
.to.deep.equal(["name:string","nicks:{first:string,last:string}","email:string"]);
expect(comaDivider("name:string,nicks:{first:string,last:{year:number,age:23}},email:string"))
.to.deep.equal(["name:string","nicks:{first:string,last:{year:number,age:23}}","email:string"]);
expect(comaDivider("name:string,nicks:[{first:string,last:string}]"))
.to.deep.equal(["name:string","nicks:[{first:string,last:string}]"]);
expect(comaDivider("name:string,nicks:[{first:string,last:string};10]"))
.to.deep.equal(["name:string","nicks:[{first:string,last:string};10]"]);
expect(comaDivider("name:string,nicks:[{first:string,last:[{name:string, age:23};5]};10],other:string"))
.to.deep.equal(["name:string","nicks:[{first:string,last:[{name:string, age:23};5]};10]","other:string"]);
expect(comaDivider("name:string,nicks:{first:string,last:[{name:string, age:23};5]},other:string"))
.to.deep.equal(["name:string","nicks:{first:string,last:[{name:string, age:23};5]}","other:string"]);
});
it('fixing bug', () => {
let r1 = [];
r1 = comaDivider("a:string,b:string");
expect(r1).to.deep.equal(["a:string","b:string"])
r1 = comaDivider("a:string,b:string,c:string");
expect(r1).to.deep.equal(["a:string","b:string","c:string"])
r1 = comaDivider("a:{m:{x:string},n:strin},b:string");
expect(r1).to.deep.equal(["a:{m:{x:string},n:strin}","b:string"])
r1 = comaDivider("a:{n:strin,m:{x:string}},b:string");
expect(r1).to.deep.equal(["a:{n:strin,m:{x:string}}","b:string"])
r1 = comaDivider("b:{x:{n:string},y:{m:string}},a:string");
expect(r1).to.deep.equal(["b:{x:{n:string},y:{m:string}}","a:string"])
r1 = comaDivider("b:{x:{n:string},y:{m:string,h:{t:string,r:string}}},a:string");
expect(r1).to.deep.equal(["b:{x:{n:string},y:{m:string,h:{t:string,r:string}}}","a:string"])
r1 = comaDivider("b:{x:{n:string}},y:{m:string},a:string");
expect(r1).to.deep.equal(["b:{x:{n:string}}","y:{m:string}","a:string"])
r1 = comaDivider("b:{x:{n:string},y:{m:string,h:{t:string,r:string}}},a:string");
expect(r1).to.deep.equal(["b:{x:{n:string},y:{m:string,h:{t:string,r:string}}}","a:string"])
r1 = comaDivider("y:string,b:{x:{n:string},y:string},a:{s:{d:string}}");
expect(r1).to.deep.equal(["y:string","b:{x:{n:string},y:string}","a:{s:{d:string}}"])
r1 = comaDivider("b:string,c:{m:string,n:string},d:string");
expect(r1).to.deep.equal(["b:string","c:{m:string,n:string}","d:string"])
r1 = comaDivider("b:{x:string,y:{y:string,w:num}},c:{m:string,n:string},d:string,f:{h:num,r:str},to:{na:str}");
expect(r1).to.deep.equal(["b:{x:string,y:{y:string,w:num}}","c:{m:string,n:string}","d:string","f:{h:num,r:str}","to:{na:str}"])
})
如果有人对此代码有改进，请告诉我。