deep-case-crafter/dist/index.esm.js

Transforms deeply nested object, array, Map, and Set keys between common case formats while preserving TypeScript type safety

const e={snake:{camel:function(e){return e.toLowerCase().replace(/_([a-z0-9])/g,((e,t)=>t.toUpperCase()))},pascal:function(e){return e.toLowerCase().replace(/_+([a-z0-9])/g,((e,t)=>t.toUpperCase())).replace(/^[a-z]/,(e=>e.toUpperCase()))},kebab:function(e){return e.replace(/_/g,"-")},snake:e=>e},camel:{snake:function(e){if(!e)return e;let t=e.replace(/([a-z0-9])([A-Z])/g,"$1_$2");return t=t.replace(/([A-Z])(?=[A-Z])/g,"$1_"),t.toLowerCase()},pascal:function(e){return e?e.charAt(0).toUpperCase()+e.slice(1):e},kebab:function(e){if(!e)return e;let t=e.replace(/([a-z0-9])([A-Z])/g,"$1-$2");return t=t.replace(/([A-Z])(?=[A-Z])/g,"$1-"),t.toLowerCase()},camel:e=>e},pascal:{snake:function(e){if(!e)return e;let t=e.replace(/([A-Z]{2,})([A-Z][a-z])/g,"$1_$2");return t=t.replace(/([a-z0-9])([A-Z])/g,"$1_$2"),t.toLowerCase()},camel:function(e){return e?e.charAt(0).toLowerCase()+e.slice(1):e},kebab:function(e){if(!e)return e;let t=e.replace(/([A-Z]{2,})([A-Z][a-z])/g,"$1-$2");return t=t.replace(/([a-z0-9])([A-Z])/g,"$1-$2"),t.toLowerCase()},pascal:e=>e},kebab:{snake:function(e){return e.replace(/-/g,"_")},camel:function(e){return e.toLowerCase().replace(/-+([a-z0-9])/g,((e,t)=>t.toUpperCase()))},pascal:function(e){return e.toLowerCase().replace(/-+([a-z0-9])/g,((e,t)=>t.toUpperCase())).replace(/^[a-z]/,(e=>e.toUpperCase()))},kebab:e=>e}};const t=/^[a-z0-9_]+$/,r=/__+/,n=/^[a-z][a-zA-Z0-9]*$/,s=/^[A-Z][a-zA-Z0-9]*$/,a=/^[a-z0-9-]+$/,o=/-{2,}/,c=/[A-Z]/,u=/[a-z]/,i=/^[a-z0-9]+$/;function l(e){return"string"!=typeof e?null:function(e){if(e.includes("_")||e.includes("-")||e.includes(" "))return!1;if(e.length>0&&!/^[A-Za-z0-9]+$/.test(e))return!1;if(e.length<=1)return!0;const t=e[0],r=e.slice(1);return e===e.toLowerCase()||t===t.toUpperCase()&&r===r.toLowerCase()}(e)?"single":function(e){return"string"==typeof e&&t.test(e)&&!r.test(e)&&(e.includes("_")||i.test(e))}(e)?"snake":function(e){return"string"==typeof e&&n.test(e)&&c.test(e)}(e)?"camel":function(e){return"string"==typeof e&&s.test(e)&&u.test(e)}(e)?"pascal":function(e){return"string"==typeof e&&a.test(e)&&!o.test(e)&&(e.includes("-")||i.test(e))}(e)?"kebab":null}function f(t,r){if(!t)return t;const{targetCase:n}=r,{string:s,shouldTransform:a,sourceCase:o,singleWord:c}=function(e){if("string"!=typeof e)throw new Error("Input must be a string");if(0===e.length)return{string:e,shouldTransform:!1,sourceCase:null,singleWord:!1};if(/[^A-Za-z0-9_-]/.test(e)||/^[^A-Za-z]/.test(e)||/[^A-Za-z0-9]$/.test(e))return{string:e,shouldTransform:!1,sourceCase:null,singleWord:!1};const t=l(e);return t?"single"===t?{string:e,shouldTransform:!0,sourceCase:null,singleWord:!0}:{string:e,shouldTransform:!0,sourceCase:t,singleWord:!1}:{string:e,shouldTransform:!1,sourceCase:null,singleWord:!1}}(t);if(!a)return s;if(c)return function(e,t){switch(t){case"pascal":return e.charAt(0).toUpperCase()+e.slice(1).toLowerCase();case"camel":return e.charAt(0).toLowerCase()+e.slice(1);case"snake":case"kebab":return e.toLowerCase();default:return e}}(s,n);if(!o||o===n)return s;const u=e[o];if(!u)return s;const i=u[n];return i?i(s):s}function p(e,t){if(!(e instanceof Map))return e;const r=[];for(const[n,s]of e.entries())if("string"==typeof n){const e=f(n,t);r.push([e,s])}else r.push([n,s]);return new Map(r)}function g(e,t){if(null===e||"object"!=typeof e||Array.isArray(e))return e;const{targetCase:r,sourceCase:n}=t,s={};for(const t in e)if(Object.prototype.hasOwnProperty.call(e,t)){s[!isNaN(Number(t))&&String(Number(t))===t?Number(t):f(t,{targetCase:r,sourceCase:n})]=e[t]}if(Object.getOwnPropertySymbols){const t=Object.getOwnPropertySymbols(e);for(const r of t)s[r]=e[r]}return s}function C(e,t,r=new WeakMap,n=0){var s;if(null==e||"object"!=typeof e)return e;if(r.has(e))return r.get(e);const a=null!==(s=t.depth)&&void 0!==s?s:3;if(n>=a)return e;const o=Object.assign(Object.assign({},t),{depth:a});let c;if(Array.isArray(e))c=function(e,t){return Array.isArray(e)?e.map((e=>null==e?e:e instanceof Map?p(e,t):"object"!=typeof e||Array.isArray(e)||e instanceof Set?e:g(e,t))):e}(e,t),r.set(e,c),n<a&&(c=c.map((e=>C(e,o,r,n+1))));else if(e instanceof Map){if(c=p(e,t),r.set(e,c),n<a){const e=c;for(const[t,s]of e.entries())null!==s&&"object"==typeof s&&e.set(t,C(s,o,r,n+1))}}else if(e instanceof Set){if(c=new Set(e),r.set(e,c),n<a){const e=c,t=Array.from(e);e.clear();for(const s of t)null!==s&&"object"==typeof s?e.add(C(s,o,r,n+1)):e.add(s)}}else if(c=g(e,t),r.set(e,c),n<a){const e=c;for(const t in e){const s=e[t];null!==s&&"object"==typeof s&&(e[t]=C(s,o,r,n+1))}}return c}function b(e,t){var r;return C(e,Object.assign(Object.assign({},t),{targetCase:(null==t?void 0:t.targetCase)||"camel",depth:null!==(r=null==t?void 0:t.depth)&&void 0!==r?r:3}))}export{b as default};