@stryke/json
Version:
A package containing JSON parsing/stringify utilities used by Storm Software.
5 lines (4 loc) • 1.06 kB
JavaScript
import{EMPTY_STRING as p}from"@stryke/types/base";const h=Symbol("singleComment"),a=Symbol("multiComment");function d(){return""}function C(t,f,c){return t.slice(f,c).replace(/\S/g," ")}function y(t,f){let c=f-1,o=0;for(;t[c]==="\\";)c-=1,o+=1;return!!(o%2)}export function stripComments(t,{whitespace:f=!0,trailingCommas:c=!1}={}){if(typeof t!="string")throw new TypeError(`Expected argument \`jsonString\` to be a \`string\`, got \`${typeof t}\``);const o=f?C:d;let g=!1,i=!1,s=0,n="",b="",l=-1;for(let e=0;e<t.length;e++){const r=t[e],m=t[e+1];!i&&r==='"'&&(y(t,e)||(g=!g)),!g&&(!i&&r+(m??p)==="//"?(n+=t.slice(s,e),s=e,i=h,e++):i===h&&r+(m??p)===`\r
`?(e++,i=!1,n+=o(t,s,e),s=e):i===h&&r===`
`?(i=!1,n+=o(t,s,e),s=e):!i&&r+(m??p)==="/*"?(n+=t.slice(s,e),s=e,i=a,e++):i===a&&r+(m??p)==="*/"?(e++,i=!1,n+=o(t,s,e+1),s=e+1):c&&!i&&(l!==-1?r==="}"||r==="]"?(n+=t.slice(s,e),b+=o(n,0,1)+n.slice(1),n="",s=e,l=-1):r!==" "&&r!==" "&&r!=="\r"&&r!==`
`&&(n+=t.slice(s,e),s=e,l=-1):r===","&&(b+=n+t.slice(s,e),n="",s=e,l=e)))}return b+n+(i?o(t.slice(s)):t.slice(s))}