wrangler-action/node_modules/smartwrap/test/speariment.js
2023-08-07 15:11:15 -05:00

78 lines
2.2 KiB
JavaScript

// iterate array pointer in both arrays to first matching element
// savedArr: remove and copy all elements (e0) preceding match
// processedArr: insert (e0) before pointer
// repeat
//
// if savedArr has elements remaining after loop complete, append to processedArr
const ANSIRegexp = [
'[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
'(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))'
].join('|');
const ANSICloseRegexp = new RegExp(`\\u001b\\[0m`)
let processedArr = ["r", "e", "\n", "d"]
// let savedArr = [
// "\033[34m", "r", "\033[0m",
// "\033[34m", "e", "\033[0m",
// "\033[34m", "d", "\033[0m",
// ]
let text = "\033[34mr\033[0m\033[34me\033[0m\033[34md\033[0m"
console.log(text.length)
let escapedRegex = new RegExp(ANSIRegexp, "g")
// get string positions for matches
let matches = []
while((result = escapedRegex.exec(text)) !== null) {
matches.push({
start: result.index,
end: result.index + result[0].length,
match: result[0]
})
}
// add start and end positions for non matches
matches = matches.reduce((prev, curr) => {
// check if space exists between this and last match
// get end of previous match
let prevEnd = prev[prev.length -1]
if (prevEnd.end < curr.start) {
prev.push({ start: prevEnd.end, end: curr.start }, curr)
}
else {
prev.push(curr)
}
return prev
},[{start:0, end:0}])
.splice(1) // removes starting accumulator object
// get regex pattern for each split point
let splitStr = matches.map( value => `(.{${value.end - value.start}})` )
.join('')
// now we have an array of all ansi escaped and non-ansi escaped strings
let savedArr = new RegExp(`^${splitStr}`).exec(text).splice(1)
let restoredANSI = processedArr.map((char) => {
if (char === '\n') return char
let splicePoint = savedArr.findIndex(element => element === char) + 1
let result = savedArr.splice(0, splicePoint)
// add all consecutive closing tags
while (ANSICloseRegexp.test(savedArr[0])){
result.push(savedArr.shift())
}
return result.join("")
}).concat(savedArr)
console.log(restoredANSI)
console.log(restoredANSI.join(""))
// // return immediately if is a closing tag, so no linebreaks in front
// if (ANSICloseRegexp.test(char)) return char