tscLabelBuilder.ts
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/**
* TSC 标签指令构建（纯 TypeScript，无 require/import 外部 CJS 模块）
* 使用 UTF-8 编码。对于纯英文/ASCII 内容，UTF-8 与 GB18030 字节一致，佳博打印机可正常打印。
* 若需中文等非 ASCII，可考虑运行时动态加载 tsc.js（仅 APP 端）。
*/
/** 将字符串转为 UTF-8 字节数组（不依赖 TextEncoder） */
function stringToUtf8Bytes (str: string): number[] {
const out: number[] = []
for (let i = 0; i < str.length; i++) {
let c = str.charCodeAt(i)
if (c < 0x80) {
out.push(c)
} else if (c < 0x800) {
out.push(0xc0 | (c >> 6), 0x80 | (c & 0x3f))
} else if (c < 0xd800 || c >= 0xe000) {
out.push(0xe0 | (c >> 12), 0x80 | ((c >> 6) & 0x3f), 0x80 | (c & 0x3f))
} else {
i++
const c2 = str.charCodeAt(i)
const u = ((c & 0x3ff) << 10) + (c2 & 0x3ff) + 0x10000
out.push(
0xf0 | (u >> 18),
0x80 | ((u >> 12) & 0x3f),
0x80 | ((u >> 6) & 0x3f),
0x80 | (u & 0x3f)
)
}
}
return out
}
function addCommandBytes (out: number[], str: string) {
const bytes = stringToUtf8Bytes(str)
for (let i = 0; i < bytes.length; i++) out.push(bytes[i])
}
function escapeTscString (s: string): string {
return String(s).replace(/\\/g, '\\\\').replace(/"/g, '\\"')
}
/**
* 构建标签打印指令字节数组（TSC）
* 与官方 Demo createLabel 格式一致（SIZE 100x30, GAP 0）
*/
export function buildTscLabel (options: {
productName: string
labelId: string
printQty?: number
widthMm?: number
heightMm?: number
category?: string
extraLine?: string
}): number[] {
const {
productName,
labelId,
printQty = 1,
widthMm = 100,
heightMm = 30,
category = '',
extraLine = '',
} = options
const out: number[] = []
const add = (s: string) => addCommandBytes(out, s + '\r\n')
let y = 10
add(`SIZE ${widthMm} mm,${heightMm} mm`)
add('GAP 0 mm,0 mm')
add('CLS')
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"${escapeTscString(productName)}"`)
y += 35
if (category) {
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Category: ${escapeTscString(category)}"`)
y += 35
}
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"ID: ${escapeTscString(labelId)}"`)
y += 35
if (extraLine) {
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"${escapeTscString(extraLine)}"`)
y += 35
}
add(`QRCODE 50,${y},L,5,A,0,"${escapeTscString(labelId)}"`)
add(`PRINT 1,${printQty}`)
add('FEED 1')
return out
}
/**
* 食品营养成分标签测试打印（Nutrition Facts 格式）
*/
export function buildTestTscLabel (): number[] {
const out: number[] = []
const add = (s: string) => addCommandBytes(out, s + '\r\n')
let y = 10
add('SIZE 100 mm,70 mm')
add('GAP 0 mm,0 mm')
add('CLS')
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"NUTRITION FACTS"`)
y += 28
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Grilled Chicken Breast"`)
y += 28
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Serving Size 1 piece (100g)"`)
y += 32
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Calories 165"`)
y += 28
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Total Fat 4g"`)
y += 24
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Saturated Fat 1g"`)
y += 24
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Cholesterol 85mg"`)
y += 24
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Sodium 75mg"`)
y += 24
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Total Carb 0g"`)
y += 24
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Protein 31g"`)
y += 28
add(`TEXT 50,${y},"TSS24.BF2",0,1,1,"Exp: 01/17/25 ID: TEST-251227"`)
y += 35
add(`QRCODE 50,${y},L,4,A,0,"TEST-251227-001"`)
add('PRINT 1,1')
add('FEED 1')
return out
}