portainer/app/docker/helpers/splitargs.ts

115 lines
2.2 KiB
TypeScript

/**
Splits strings into tokens by given separator except treating quoted part as a single token.
#Usage
```javascript
var splitargs = require('splitargs');
var i1 = "I said 'I am sorry.', and he said \"it doesn't matter.\"";
var o1 = splitargs(i1);
console.log(o1);
[ 'I',
'said',
'I am sorry.,',
'and',
'he',
'said',
'it doesn\'t matter.' ]
var i2 = "I said \"I am sorry.\", and he said \"it doesn't matter.\"";
var o2 = splitargs(i2);
console.log(o2);
[ 'I',
'said',
'I am sorry.,',
'and',
'he',
'said',
'it doesn\'t matter.' ]
var i3 = 'I said "I am sorry.", and he said "it doesn\'t matter."';
var o3 = splitargs(i3);
console.log(o3);
[ 'I',
'said',
'I am sorry.,',
'and',
'he',
'said',
'it doesn\'t matter.' ]
var i4 = 'I said \'I am sorry.\', and he said "it doesn\'t matter."';
var o4 = splitargs(i4);
console.log(o4);
[ 'I',
'said',
'I am sorry.,',
'and',
'he',
'said',
'it doesn\'t matter.' ]
```
*/
export function splitargs(
input: string,
sep?: RegExp | string,
keepQuotes = false
) {
const separator = sep || /\s/g;
let singleQuoteOpen = false;
let doubleQuoteOpen = false;
let tokenBuffer = [];
const ret = [];
const arr = input.split('');
for (let i = 0; i < arr.length; ++i) {
const element = arr[i];
const matches = element.match(separator);
// TODO rewrite without continue
/* eslint-disable no-continue */
if (element === "'" && !doubleQuoteOpen) {
if (keepQuotes) {
tokenBuffer.push(element);
}
singleQuoteOpen = !singleQuoteOpen;
continue;
} else if (element === '"' && !singleQuoteOpen) {
if (keepQuotes) {
tokenBuffer.push(element);
}
doubleQuoteOpen = !doubleQuoteOpen;
continue;
}
/* eslint-enable no-continue */
if (!singleQuoteOpen && !doubleQuoteOpen && matches) {
if (tokenBuffer.length > 0) {
ret.push(tokenBuffer.join(''));
tokenBuffer = [];
} else if (sep) {
ret.push(element);
}
} else {
tokenBuffer.push(element);
}
}
if (tokenBuffer.length > 0) {
ret.push(tokenBuffer.join(''));
} else if (sep) {
ret.push('');
}
return ret;
}