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// Utility functions for number formatting and parsing |
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|
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export type NumberFormat = 'us_decimal' | 'us_int' | 'eu_decimal' | 'eu_int' | '' |
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|
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export const formatWithThousandsDynamic = (n: number, thousandsSep: string) => { |
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const parts = n.toString().split('.') |
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let intPart = parts[0] |
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const decPart = parts[1] ?? '' |
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intPart = intPart.replace(/\B(?=(\d{3})+(?!\d))/g, thousandsSep) |
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return { intPart, decPart } |
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} |
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|
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export const formatNumber = ( |
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value: number | null | undefined, |
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numberFormat: NumberFormat = '', |
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): string => { |
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if (value === null || value === undefined || isNaN(value)) return '' |
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const num = value |
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switch (numberFormat) { |
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case 'us_decimal': { |
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const { intPart, decPart } = formatWithThousandsDynamic(Math.abs(num), ',') |
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return (num < 0 ? '-' : '') + (decPart ? `${intPart}.${decPart}` : intPart) |
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} |
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case 'us_int': { |
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const { intPart } = formatWithThousandsDynamic(Math.trunc(Math.abs(num)), ',') |
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return (num < 0 ? '-' : '') + intPart |
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} |
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case 'eu_decimal': { |
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const { intPart, decPart } = formatWithThousandsDynamic(Math.abs(num), '.') |
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return (num < 0 ? '-' : '') + (decPart ? `${intPart},${decPart}` : intPart) |
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} |
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case 'eu_int': { |
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const { intPart } = formatWithThousandsDynamic(Math.trunc(Math.abs(num)), '.') |
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return (num < 0 ? '-' : '') + intPart |
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} |
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default: |
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return String(num) |
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} |
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} |
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|
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export const sanitizeRaw = (raw: string, numberFormat: NumberFormat = ''): string => { |
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if (!raw) return '' |
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let v = raw.replace(/[^0-9,.-]/g, '') |
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v = v.replace(/-/g, (m, idx) => (idx === 0 ? '-' : '')) |
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if (v.length > 1 && v[0] !== '-') { |
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v = v.replace(/-/g, '') |
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} |
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const fmt = numberFormat |
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const isEU = fmt === 'eu_decimal' || fmt === 'eu_int' |
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const allowDecimal = fmt === 'eu_decimal' || fmt === 'us_decimal' || fmt === '' |
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if (isEU) { |
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let seenDecimal = false |
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let out = '' |
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for (const ch of v) { |
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if (ch === ',') { |
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if (!allowDecimal || seenDecimal) { |
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continue |
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} |
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seenDecimal = true |
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out += ch |
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} else if (ch === '.') { |
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// skip thousands dot |
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} else { |
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out += ch |
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} |
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} |
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v = out |
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} else { |
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let seenDecimal = false |
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let out = '' |
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for (const ch of v) { |
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if (ch === '.') { |
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if (!allowDecimal || seenDecimal) { |
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continue |
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} |
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seenDecimal = true |
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out += ch |
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} else if (ch === ',') { |
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// skip thousands comma |
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} else { |
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out += ch |
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} |
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} |
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v = out |
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} |
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return v |
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} |
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|
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export const parseToNumber = ( |
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raw: string, |
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numberFormat: NumberFormat = '', |
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min: number = -Infinity, |
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max: number = Infinity, |
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): number | null => { |
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if (!raw) return null |
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const fmt = numberFormat |
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let v = raw.trim() |
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if (fmt === 'eu_decimal' || fmt === 'eu_int') { |
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v = v.replace(/\./g, '') |
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if (fmt === 'eu_decimal') v = v.replace(',', '.') |
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else v = v.split(',')[0] |
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} else if (fmt === 'us_decimal' || fmt === 'us_int') { |
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v = v.replace(/,/g, '') |
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if (fmt === 'us_int') v = v.split('.')[0] |
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} |
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v = v.replace(/[^0-9.+-]/g, '') |
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if (v === '-' || v === '' || v === '.' || v === '-.') return null |
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const num = Number(v) |
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if (isNaN(num)) return null |
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return Math.min(Math.max(num, min), max) |
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} |
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|
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export const formatNumberForField = (raw: unknown, fmt: NumberFormat): string => { |
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if (raw === null || raw === undefined || raw === '') return '' |
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let num: number | null = null |
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if (typeof raw === 'number') { |
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num = isNaN(raw) ? null : raw |
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} else if (typeof raw === 'string') { |
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const s = raw.trim() |
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if (s === '') return '' |
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if (/^[0-9]+$/.test(s)) { |
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num = parseFloat(s) |
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} else if (/^[0-9.,-]+$/.test(s)) { |
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let normalized = s |
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const lastComma = s.lastIndexOf(',') |
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const lastDot = s.lastIndexOf('.') |
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if (lastComma !== -1 && lastDot !== -1) { |
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if (lastComma > lastDot) { |
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normalized = s.replace(/\./g, '').replace(',', '.') |
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} else { |
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normalized = s.replace(/,/g, '') |
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} |
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} else if (lastComma !== -1) { |
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normalized = s |
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.replace(/\./g, '') |
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.replace(/,/g, '.') |
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.replace(/(\.)(?=.*\.)/g, '') |
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} else if (lastDot !== -1) { |
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const parts = s.split('.') |
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if (parts.length > 2) { |
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const dec = parts.pop() as string |
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const intPart = parts.join('') |
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normalized = intPart + '.' + dec |
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} else { |
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normalized = s |
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} |
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normalized = normalized.replace(/,/g, '') |
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} |
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const parsed = parseFloat(normalized) |
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num = isNaN(parsed) ? null : parsed |
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} else { |
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return String(raw) |
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} |
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} |
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if (num === null) return '' |
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const absParts = (n: number, decimals = 2) => { |
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const str = n.toFixed(decimals) |
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const [i, d] = str.split('.') |
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return { i, d: d || '' } |
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} |
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const addThousands = (intPart: string, sep: string) => |
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intPart.replace(/\B(?=(\d{3})+(?!\d))/g, sep) |
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switch (fmt) { |
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case 'us_decimal': { |
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const { i, d } = absParts(Math.abs(num), 2) |
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const intF = addThousands(i, ',') |
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return (num < 0 ? '-' : '') + `${intF}.${d}` |
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} |
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case 'us_int': { |
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const t = Math.trunc(Math.abs(num)) |
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const intF = addThousands(t.toString(), ',') |
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return (num < 0 ? '-' : '') + intF |
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} |
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case 'eu_decimal': { |
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const { i, d } = absParts(Math.abs(num), 2) |
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const intF = addThousands(i, '.') |
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return (num < 0 ? '-' : '') + `${intF},${d}` |
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} |
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case 'eu_int': { |
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const t = Math.trunc(Math.abs(num)) |
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const intF = addThousands(t.toString(), '.') |
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return (num < 0 ? '-' : '') + intF |
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} |
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default: |
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// Show up to 2 decimals if needed, otherwise integer |
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return num % 1 === 0 ? num.toString() : num.toFixed(2) |
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} |
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} |
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