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Diffstat (limited to 'src/libnetdata/parsers/duration.html')
| -rw-r--r-- | src/libnetdata/parsers/duration.html | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/src/libnetdata/parsers/duration.html b/src/libnetdata/parsers/duration.html new file mode 100644 index 000000000..8f6f8a416 --- /dev/null +++ b/src/libnetdata/parsers/duration.html @@ -0,0 +1,205 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="UTF-8"> + <meta http-equiv="X-UA-Compatible" content="IE=edge"> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> + <title>Duration Converter</title> + <style> + table { + width: 50%; + border-collapse: collapse; + margin-top: 20px; + } + table, th, td { + border: 1px solid black; + } + th, td { + padding: 10px; + text-align: center; + } + .error { + color: red; + margin-top: 10px; + } + </style> +</head> +<body> +<h1>Duration Converter</h1> +<input type="text" id="durationInput" placeholder="Enter duration (e.g., 10d-12h)"> +<div id="errorMessage" class="error"></div> + +<table id="resultTable"> + <thead> + <tr> + <th>Unit</th> + <th>Value</th> + <th>Formatted</th> + <th>Check</th> + </tr> + </thead> + <tbody> + </tbody> +</table> + +<script> + const NSEC_PER_USEC = 1000; + const USEC_PER_MS = 1000; + const NSEC_PER_SEC = 1000000000; + const NSEC_PER_MS = USEC_PER_MS * NSEC_PER_USEC; + const NSEC_PER_MIN = NSEC_PER_SEC * 60; + const NSEC_PER_HOUR = NSEC_PER_MIN * 60; + const NSEC_PER_DAY = NSEC_PER_HOUR * 24; + const NSEC_PER_WEEK = NSEC_PER_DAY * 7; + const NSEC_PER_YEAR = NSEC_PER_DAY * 365; + const NSEC_PER_MONTH = NSEC_PER_DAY * 30; + const NSEC_PER_QUARTER = NSEC_PER_MONTH * 3; + + const units = [ + { unit: "ns", formatter: true, multiplier: 1 }, + { unit: "us", formatter: true, multiplier: NSEC_PER_USEC }, + { unit: "ms", formatter: true, multiplier: NSEC_PER_MS }, + { unit: "s", formatter: true, multiplier: NSEC_PER_SEC }, + { unit: "m", formatter: true, multiplier: NSEC_PER_MIN }, + { unit: "min", formatter: false, multiplier: NSEC_PER_MIN }, + { unit: "h", formatter: true, multiplier: NSEC_PER_HOUR }, + { unit: "d", formatter: true, multiplier: NSEC_PER_DAY }, + { unit: "w", formatter: false, multiplier: NSEC_PER_WEEK }, + { unit: "wk", formatter: false, multiplier: NSEC_PER_WEEK }, + { unit: "mo", formatter: true, multiplier: NSEC_PER_MONTH }, + { unit: "M", formatter: false, multiplier: NSEC_PER_MONTH }, + { unit: "q", formatter: false, multiplier: NSEC_PER_QUARTER }, + { unit: "y", formatter: true, multiplier: NSEC_PER_YEAR }, + { unit: "Y", formatter: false, multiplier: NSEC_PER_YEAR }, + { unit: "a", formatter: false, multiplier: NSEC_PER_YEAR } + ]; + + function durationFindUnit(unit) { + if (!unit) return units[0]; + return units.find(u => u.unit === unit) || null; + } + + function roundToResolution(value, resolution) { + if (value > 0) return Math.floor((value + (resolution - 1) / 2) / resolution); + if (value < 0) return Math.ceil((value - (resolution - 1) / 2) / resolution); + return 0; + } + + function parseDouble(str) { + str = str.trim(); + const match = str.match(/^[-+]?\d*\.?\d+/); + if (match) { + const number = parseFloat(match[0]); + const remainingStr = str.slice(match[0].length).trim(); + return { number, remainingStr }; + } + return { number: null, remainingStr: str }; + } + + function durationParse(duration, unit) { + if (!duration || !unit) return false; + + let s = duration.trim(); + let nsec = 0; + let isNegative = false; + + // Handle leading negative sign + if (s.startsWith("-")) { + isNegative = true; + s = s.slice(1).trim(); + } + + while (s.length > 0) { + s = s.trim(); + + if (s.startsWith("never") || s.startsWith("off")) + return 0; + + const { number, remainingStr } = parseDouble(s); + if (number === null) return false; + + s = remainingStr; + + const match = s.match(/^([a-zA-Z]*)/); + let currentUnit = unit; + if (match && match[0].length > 0) { + currentUnit = match[0]; + s = s.slice(match[0].length).trim(); + } + + const du = durationFindUnit(currentUnit); + if (!du) return false; + + nsec += number * du.multiplier; + } + + const unitMultiplier = durationFindUnit(unit).multiplier; + nsec = roundToResolution(nsec, unitMultiplier); + + return isNegative ? -nsec : nsec; + } + + function durationSnprintf(value, unit) { + if (value === 0) return "off"; + + const duMin = durationFindUnit(unit); + let nsec = Math.abs(value) * duMin.multiplier; + + const isNegative = value < 0; + let result = isNegative ? "-" : ""; + + for (let i = units.length - 1; i >= 0 && nsec !== 0; i--) { + const du = units[i]; + if (!du.formatter && du !== duMin) continue; + + const multiplier = du.multiplier; + const rounded = (du === duMin) ? roundToResolution(nsec, multiplier) * multiplier : nsec; + let unitCount = Math.floor(rounded / multiplier); + + if (unitCount !== 0) { + result += `${unitCount}${du.unit}`; + nsec -= unitCount * multiplier; + } + + if (du === duMin) break; + } + + return result || "off"; + } + + function updateTable() { + const duration = document.getElementById("durationInput").value; + const tableBody = document.getElementById("resultTable").querySelector("tbody"); + const errorMessage = document.getElementById("errorMessage"); + tableBody.innerHTML = ""; + errorMessage.textContent = ""; + + units.forEach(unit => { + let value = durationParse(duration, unit.unit); + let formatted; + let check; + if(value === false) { + value = "-"; + formatted = ""; + check = "parsing error"; + } + else { + formatted = durationSnprintf(value, unit.unit); + const parsedValue = durationParse(formatted, unit.unit); + check = (parsedValue === value) ? "ok" : `re-parsing error (${parsedValue})`; + } + + const row = `<tr> + <td>${unit.unit}</td> + <td>${value}</td> + <td>${formatted}</td> + <td>${check}</td> + </tr>`; + tableBody.innerHTML += row; + }); + } + + document.getElementById("durationInput").addEventListener("input", updateTable); +</script> +</body> +</html> |