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a-calc - npm Package Compare versions
Comparing version 0.0.80 to 1.0.2
@@ -1,1 +0,1 @@ | ||
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Error("错误的填充值")})}function xt(e){var r=null;return e.length,{tokens:e.map(function(e){var t=function(e){for(var t,r,n=null,i=null,o=[/^([+-]?[\d.]+(?:e|E)(?:\+|-)?\d+)(.*)$/,/^([+-]?[\d.]+)(.*)$/],s=0;s<o.length;s++){var u=e.match(o[s]);if(u){t=u;break}}return t&&(i=t[1],""!==(r=t[2]).trim())&&(n=r),{num:i,unit:n}}(e.value);return null!==t.unit?(null==r&&(r=t.unit),{type:"number",value:t.num}):e}),unit:r}}function kt(){for(var e=arguments.length,t=new Array(e),r=0;r<e;r++)t[r]=arguments[r];var n=function(e){var t={expr:"",fmt:null,options:null,fmt_err:!1,expr_err:!1},r="",n=e[0],i=e[1],o=w(i,"_error",!1);if(0===e.length)throw new Error("至少传入一个参数");if("string"==typeof n){if(""===(r=n).trim()||n.includes("NaN"))return t.expr_err=!0,t}else{if("number"!=typeof n){if(!0===o)return t.expr_err=!0,t;throw new Error("错误的第一个参数类型: ".concat(n," 类型为:").concat(D(n)))}r=n.toString()}if(f(i)&&(t.options=i),e=r.split("|"),t.expr=e[0],1<e.length){o=e[1];if(""!==o.trim())try{t.fmt=k(o)}catch(e){return t.fmt_err=!0,t}}if(null!==t.options&&t.options._fmt){var s,n=[];try{n=k(t.options._fmt)}catch(e){return t.fmt_err=!0,t}null===t.fmt?t.fmt=n:(s=t.fmt.map(function(e){return e.type}),n.forEach(function(e){s.includes(e.type)||t.fmt.push(e)}))}return t}(t),i=w(n,"options._error",!1),o=w(n,"options._debug",!1),s=w(n,"options._unit",!1),u=n.options,l=null;if(n.fmt_err||n.expr_err){if(i)return i;throw new Error("表达式或格式化字符串错误,表达式为：".concat(n.expr))}if(i)try{c=mt(n.expr,s)}catch(e){return i}else c=mt(n.expr,s);if(o&&(console.warn("======a-calc调试模式======"),console.warn("arg:"),console.warn(n),console.warn("tokens:"),console.warn(c)),h(u)){var c,a=[];if(Array.isArray(u)?a=u:(a.push(u),f(u=w(u,"_fill_data",{}))&&(Array.isArray(u)?a=[].concat(E(a),E(u)):a.push(u))),i)try{c=yt(c,a,s),h(n.fmt)&&(n.fmt=jt(n.fmt,a))}catch(e){return i}else c=yt(c,a,s),h(n.fmt)&&(n.fmt=jt(n.fmt,a));[!0,"on","auto","space"].includes(s)&&(l=(u=xt(c)).unit,c=u.tokens)}o&&(console.warn("分离单位之后的tokens:"),console.warn(c),console.warn("单位:".concat(l)));a=wt(c),s=null;if(i)try{s=At(a)}catch(e){return i}else s=At(a);if("Infinity"!==(s=h(n.fmt)?St(s,n.fmt):null!==s?s.toFixed():null)&&null!==s)return null!==l&&(s+=l),s;if(i)return i;throw new Error("计算错误可能是非法的计算式")}console.log("%ca-calc:%c ".concat(O),"color: #fff;background: #67C23A;padding: 2px 3px;border-radius:4px;font-size: 14px;","color: #409EFF;font-size:14px;");t=kt;return e.calc=kt,e.fmt=t,e.version=O,Object.defineProperty(e,"__esModule",{value:!0}),e}({}); |
@@ -1,7 +0,13 @@ | ||
| export function calc (...args: any): string; | ||
| export declare function calc ( | ||
| expr: any, | ||
| options?: any[] | { _error: any, _fill_data: any, _unit: boolean | "on" | "off" | "auto" | "space" } | ||
| ): string; | ||
| export function fmt (...args: any): string; | ||
| export declare function fmt ( | ||
| expr: any, | ||
| options?: any[] | { _error: any, _fill_data: any, _unit: boolean | "on" | "off" | "auto" | "space" } | ||
| ): string; | ||
| export const version: string; | ||
| export declare const version: string; | ||
145
package.json
| { | ||
| "name": "a-calc", | ||
| "version": "0.0.80", | ||
| "description": "JavaScript的精准四则运算库,支持复杂运算与格式化操作例如: 带单位计算，千分位, 灵活指定小数点位数，指定舍入规则", | ||
| "main": "./cjs/index.cjs", | ||
| "exports": { | ||
| ".": { | ||
| "import": "./es/index.mjs", | ||
| "require": "./cjs/index.cjs" | ||
| }, | ||
| "./es": { | ||
| "import": "./es/index.mjs", | ||
| "default": "./es/index.mjs" | ||
| }, | ||
| "./cjs": { | ||
| "require": "./cjs/index.cjs", | ||
| "default": "./cjs/index.cjs" | ||
| } | ||
| }, | ||
| "browser": "./browser/index.js", | ||
| "module": "./es/index.mjs", | ||
| "typings": "./calc.d.ts", | ||
| "scripts": { | ||
| "dev": "rollup -c --environment build:dev", | ||
| "dev:w": "rollup -c -w --environment build:dev", | ||
| "build": "rollup -c --environment build:build & yarn test", | ||
| "build:w": "rollup -c -w --environment build:build", | ||
| "test": "cross-env ava --verbose --tap test/*.mjs" | ||
| }, | ||
| "files": [ | ||
| "es", | ||
| "cjs", | ||
| "browser", | ||
| "calc.d.ts" | ||
| ], | ||
| "repository": { | ||
| "type": "git", | ||
| "url": "git+https://github.com/Autumn-one/a-calc-old.git" | ||
| }, | ||
| "keywords": [ | ||
| "四则运算", | ||
| "字符串四则运算", | ||
| "数字格式化", | ||
| "千分位", | ||
| "a-calc" | ||
| ], | ||
| "author": "Autumn", | ||
| "license": "MPL-2.0", | ||
| "bugs": { | ||
| "url": "https://github.com/Autumn-one/a-calc-old/issues" | ||
| }, | ||
| "homepage": "https://github.com/Autumn-one/a-calc-old#readme", | ||
| "devDependencies": { | ||
| "@babel/core": "^7.17.10", | ||
| "@babel/preset-env": "^7.17.10", | ||
| "@rollup/plugin-babel": "^5.3.1", | ||
| "@rollup/plugin-commonjs": "^22.0.0", | ||
| "@rollup/plugin-json": "^4.1.0", | ||
| "@rollup/plugin-node-resolve": "^13.2.1", | ||
| "ava": "^4.2.0", | ||
| "cross-env": "^7.0.3", | ||
| "glob": "^8.0.1", | ||
| "lodash": "^4.17.21", | ||
| "npm-run-all": "^4.1.5", | ||
| "rollup": "^2.70.2", | ||
| "rollup-plugin-livereload": "^2.0.5", | ||
| "rollup-plugin-serve": "^1.1.0", | ||
| "rollup-plugin-terser": "^7.0.2", | ||
| "rollup-plugin-uglify": "^6.0.4", | ||
| "bignumber.js": "^9.0.2" | ||
| }, | ||
| "dependencies": { | ||
| } | ||
| "name": "a-calc", | ||
| "version": "1.0.2", | ||
| "description": "JavaScript的精准四则运算库,支持复杂运算与格式化操作例如: 带单位计算，千分位, 灵活指定小数点位数，指定舍入规则", | ||
| "main": "./cjs/index.cjs", | ||
| "exports": { | ||
| ".": { | ||
| "import": "./es/index.mjs", | ||
| "require": "./cjs/index.cjs" | ||
| }, | ||
| "./es": { | ||
| "import": "./es/index.mjs", | ||
| "default": "./es/index.mjs" | ||
| }, | ||
| "./cjs": { | ||
| "require": "./cjs/index.cjs", | ||
| "default": "./cjs/index.cjs" | ||
| } | ||
| }, | ||
| "browser": "./browser/index.js", | ||
| "module": "./es/index.mjs", | ||
| "types": "./calc.d.ts", | ||
| "typings": "./calc.d.ts", | ||
| "scripts": { | ||
| "dev": "rollup -c --environment build:dev", | ||
| "dev:w": "rollup -c -w --environment build:dev", | ||
| "build": "rollup -c --environment build:build & npm run test", | ||
| "build:w": "rollup -c -w --environment build:build", | ||
| "test": "cross-env ava --verbose --tap test/*.mjs" | ||
| }, | ||
| "files": [ | ||
| "es", | ||
| "cjs", | ||
| "browser", | ||
| "calc.d.ts" | ||
| ], | ||
| "repository": { | ||
| "type": "git", | ||
| "url": "git+https://github.com/Autumn-one/a-calc-old.git" | ||
| }, | ||
| "keywords": [ | ||
| "四则运算", | ||
| "字符串四则运算", | ||
| "数字格式化", | ||
| "千分位", | ||
| "a-calc" | ||
| ], | ||
| "author": "Autumn", | ||
| "license": "MPL-2.0", | ||
| "bugs": { | ||
| "url": "https://github.com/Autumn-one/a-calc-old/issues" | ||
| }, | ||
| "homepage": "https://github.com/Autumn-one/a-calc-old#readme", | ||
| "devDependencies": { | ||
| "@babel/core": "^7.17.10", | ||
| "@babel/preset-env": "^7.17.10", | ||
| "@rollup/plugin-babel": "^5.3.1", | ||
| "@rollup/plugin-commonjs": "^22.0.0", | ||
| "@rollup/plugin-json": "^4.1.0", | ||
| "@rollup/plugin-node-resolve": "^13.2.1", | ||
| "ava": "^4.2.0", | ||
| "cross-env": "^7.0.3", | ||
| "glob": "^8.0.1", | ||
| "lodash": "^4.17.21", | ||
| "npm-run-all": "^4.1.5", | ||
| "rollup": "^2.70.2", | ||
| "rollup-plugin-livereload": "^2.0.5", | ||
| "rollup-plugin-serve": "^1.1.0", | ||
| "rollup-plugin-terser": "^7.0.2", | ||
| "rollup-plugin-uglify": "^6.0.4", | ||
| "bignumber.js": "^9.0.2" | ||
| }, | ||
| "dependencies": { | ||
| } | ||
| } |
198
README.md
| # a-calc | ||
| 来源于实际业务的字符串四则运算的库, 可解决以下问题: | ||
| 来源于实际业务的字符串四则运算的库, 可解决以下问题（注意1.0.2有破坏性更新!）: | ||
| * js数字计算精度问题 | ||
| * 数字计算可能输出科学计数法 | ||
| * 数字格式化, 数字千分位输出 | ||
| * 数字格式化, 数字千分位输出, 数字直接格式化成百分比, 保留数字的正负号, 直接输出分数等 | ||
| * 带单位的数字计算或格式化, 例如: `0.1% + 2% ` | ||
@@ -11,3 +11,3 @@ * 科学计数法写法的计算, 例如:`-2e3 + 6` | ||
| > 支持的运算符 : + - * / % | ||
| > 支持的运算符 : + - * / % ** | ||
@@ -61,5 +61,5 @@ ## 安装 | ||
| 空格在无歧义的情况下是非必须的，甚至可以正确解析下面人眼都难以解析的写法`calc("-2e+2+3e+2")`，但是没有人应该这样编写计算式来考验`a-calc`解析能力，<span style="color: red;">请记住始终在你的计算式包含空格，就像我写的示例那样！！！</span> | ||
| 空格在无歧义的情况下是非必须的，甚至可以正确解析下面人眼都难以解析的写法`calc("-2e+2+3e+2")`，但是没有人应该这样编写计算式来考验`a-calc`解析能力，<span style="color: red;">请记住始终在你的计算式包含空格，这样也更漂亮和清晰，就像我写的示例那样！！！</span> | ||
| 顺便举个有歧义的计算式 `calc("50%%2", {_unit: true})`这种歧义显然是在带单位计算的时候出现，由于解析器不知道你的单位是`%` 还是 `%%` 所以你要用用空格给出明确的意思，正确的写法应该是 `calc("50% % 2", {_unit: true})` | ||
| 顺便举个有歧义的计算式 `calc("50%%2", {_unit: true})`这种歧义显然是在带单位计算的时候出现，由于解析器不知道你的单位是`%` 还是 `%%` 所以你要用空格给出明确的意思，正确的写法应该是 `calc("50% % 2", {_unit: true})` | ||
@@ -105,4 +105,8 @@ 总之始终加空格！ | ||
| 在 `1.0.2` 之后带单位的计算可以有更多的参数，`_unit` 的取值可以为`boolean | "on" | "off" | "auto" | "space"` 参数看起来很多其实和之前的用法差不多， `true "on" "auto"` 这三个值的效果是一样的，表示自动识别数字后的单位，`false "off"` 表示关闭单位计算，最大的不同是 `"space"` 这个值表示只将空格作为单位分隔符，例如你的单位恰好是 `+-` 这种情况在普通模式下会被识别成运算符，就可以使用 `"space"` 模式，但是此时的空格就是必须的了，你要这样写：`calc("2+- * 3")` 最终结果为：`6+-` | ||
| ## 计算并格式化 | ||
| 格式化支持如下功能：限制小数位数，保留正负号，百分比输出，科学计数法输出，千分位输出，并且他们是可以组合的，不过有个别的情况组合是不生效的，这个自己去试一下，组合情况太多，不在一一列举。 | ||
| ```js | ||
@@ -124,2 +128,8 @@ // 操作小数位数 | ||
| // 百分比 | ||
| calc("1 + 1 | %") // 200% | ||
| // 科学计数法, 注意这里由于是普通字符串所以要用\\e,这个 e也可以大写 | ||
| calc("1 + 1 | \\e") // 2e+0 | ||
| // 同时指定小数位和千分位且保留正负号 | ||
@@ -166,3 +176,3 @@ calc("10000000 + 100000000 | +,=10") // +110,000,000.0000000000 | ||
| calc("1 + 2sd + d",{ | ||
| _fillData: {d: 3}, // 从这里数据源对象要赋给 _fillData, 该对象也可以是一个对象数组,此时取数据的时候是依次从数组的项里查找,找到第一个立刻停止 | ||
| _fill_data: {d: 3}, // 从这里数据源对象要赋给 _fill_data, 该对象也可以是一个对象数组,此时取数据的时候是依次从数组的项里查找,找到第一个立刻停止 | ||
| _error: "-", // 计算式出错的时候返回 - 作为替代值 | ||
@@ -186,75 +196,133 @@ }) | ||
| ## 在项目中的使用姿势(vue为例) | ||
| ## 在项目中的使用姿势(vue3为例) | ||
| > 在项目中编写庞大的第二个参数是不好的, 所以第二个参数你应该想办法固定他, 下面只是一个在VUE项目中的演示 | ||
| ```js | ||
| ### 集成到vue3模板 | ||
| ```typescript | ||
| import { calc, fmt } from "a-calc"; | ||
| import type { App } from "vue"; | ||
| import { getCurrentInstance } from "vue"; | ||
| Vue.mixin( { | ||
| methods: { | ||
| calc ( expr, obj ) | ||
| function bind_calc ( app: App<Element> ) | ||
| { | ||
| // 接受一个app的实例绑定计算器 | ||
| app.config.globalProperties.calc = function ( expr: string, obj: any ) | ||
| { | ||
| const instance: any = getCurrentInstance(); | ||
| const data_arr = [ instance.setupState, instance.data ]; | ||
| let _fmt, _error, _unit; | ||
| if ( obj !== undefined ) { | ||
| dataArr.unshift( obj ); | ||
| _fmt = obj._fmt === undefined ? undefined : obj._fmt; | ||
| _error = obj._error === undefined ? undefined : obj._error; | ||
| _unit = obj._unit === undefined ? undefined : obj._unit; | ||
| } | ||
| return calc( expr, { | ||
| _fill_data: data_arr, | ||
| _error: _error === undefined ? "-" : _error, | ||
| _fmt, // 格式化参数在没有字符串格式化的时候才有用 | ||
| _unit | ||
| } ); | ||
| }; | ||
| app.config.globalProperties.fmt = function ( expr: string, obj: any ) | ||
| { | ||
| // 专门格式化的 | ||
| const instance: any = getCurrentInstance(); | ||
| const dataArr = [ instance.setupState, instance.data ]; | ||
| let _fmt, _error, _unit; | ||
| if ( obj !== undefined ) { | ||
| dataArr.unshift( obj ); | ||
| _fmt = obj._fmt === undefined ? undefined : obj._fmt; | ||
| _error = obj._error === undefined ? undefined : obj._error; | ||
| _unit = obj._unit === undefined ? undefined : obj._unit; | ||
| } | ||
| return fmt( expr, | ||
| { | ||
| let dataArr = [this]; | ||
| let _fmt = undefined; | ||
| let _error = undefined; | ||
| if ( obj !== undefined ) | ||
| { | ||
| dataArr.unshift( obj ); | ||
| if ( obj._fmt !== undefined ) | ||
| { | ||
| _fmt = obj._fmt; | ||
| } | ||
| if ( obj._error !== undefined ) | ||
| { | ||
| _error = obj._error; | ||
| } | ||
| } | ||
| _fill_data: data_arr, | ||
| _error: _error === undefined ? "-" : _error, | ||
| _fmt, | ||
| _unit | ||
| } ); | ||
| }; | ||
| return calc( expr, { | ||
| _fillData: dataArr, | ||
| _error: _error === undefined ? "-" : _error, | ||
| _fmt, // 格式化参数在没有字符串格式化的时候才有用 | ||
| } ); | ||
| }, | ||
| fmt ( expr, obj ) | ||
| { | ||
| // 专门格式化的 | ||
| let dataArr = [this]; | ||
| let _fmt = undefined; | ||
| let _error = undefined; | ||
| if ( obj !== undefined ) | ||
| { | ||
| dataArr.unshift( obj ); | ||
| if ( obj._fmt !== undefined ) | ||
| { | ||
| _fmt = obj._fmt; | ||
| } | ||
| if ( obj._error !== undefined ) | ||
| { | ||
| _error = obj._error; | ||
| } | ||
| } | ||
| return fmt( expr, | ||
| { | ||
| _fillData: dataArr, | ||
| _error: _error === undefined ? "-" : _error, | ||
| _fmt, | ||
| _unit: true | ||
| } ); | ||
| }, | ||
| }, | ||
| } ); | ||
| } | ||
| ``` | ||
| ### 集成到script setup中 | ||
| ```typescript | ||
| interface CalcConfig | ||
| { | ||
| _fmt?: string; | ||
| _error: string; | ||
| _unit?: boolean; | ||
| } | ||
| function use_calc ( state: ReactiveVariable<any>, config: CalcConfig = { _error: "-" } ) | ||
| { | ||
| const data_arr = [ state ]; | ||
| const _fmt = config._fmt === undefined ? undefined : config._fmt; | ||
| const _error = config._error === undefined ? undefined : config._error; | ||
| const _unit = config._unit === undefined ? undefined : config._unit; | ||
| return function ( expr: string, data = {} ) | ||
| { | ||
| data_arr.unshift( data ); | ||
| return calc( expr, { | ||
| _fill_data: data_arr, | ||
| _error: _error === undefined ? "-" : _error, | ||
| _fmt, // 格式化参数在没有字符串格式化的时候才有用 | ||
| _unit | ||
| } ); | ||
| }; | ||
| } | ||
| ``` | ||
| 下面是使用示例 | ||
| ```vue | ||
| <script lang="ts" setup> | ||
| const state = reactive({ | ||
| a: 1, | ||
| b: 2, | ||
| c: 3 | ||
| }) | ||
| const calc = use_calc(state) | ||
| calc("a + b * c") | ||
| </script> | ||
| ``` | ||
| ## 版本变更 | ||
| * 1.0.2 | ||
| * 破坏性变更：所有暴露出的小驼峰命名全部改成了蛇形命名法例如原来的`_fillData` 现在变成了 `_fill_data`，原因是蛇形命名法更清晰。 | ||
| * 内部代码极大的简化，解析器几乎完全重写，带来更稳定的体验 | ||
| * 原先的设计就是calc函数具备所有fmt的功能，可是1.0.2 之前的版本虽然符合这个设计可是calc和fmt是分别实现的，现在fmt只是calc的别名。 | ||
| * 支持新的运算符 ** | ||
| * 支持新的格式化字符 % 可以将数字输出成百分比 | ||
| * 支持新的格式化字符 `\e`，可以将数字格式化成科学计数法 | ||
| * 修复格式化字符串非法的时候可能造成死循环的问题 | ||
| * 解决1/0是 Infinity 的问题 | ||
| * 增加若干单元测试 | ||
| * 更详细的类型提示 | ||
| * 更新文档，添加vue3集成的示例代码 | ||
| * 0.0.80 | ||
| * 带来4种舍入规则，分别为：去尾、进一、四舍五入、四舍六入 | ||
| * 更多边界情况的检测 | ||
| * fmt允许不在传入格式化字符串，这个特性允许你使用 fmt 来清除小数点后多余的0 | ||
| * fmt允许不传入格式化字符串，这个特性允许你使用 fmt 来清除小数点后多余的0 | ||
| * 0.0.79 | ||
@@ -261,0 +329,0 @@ * 更新文档 |
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