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fix: convert field name to valid variable name before defining it
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| /* | ||
| * @vinejs/compiler | ||
| * | ||
| * (c) VineJS | ||
| * | ||
| * For the full copyright and license information, please view the LICENSE | ||
| * file that was distributed with this source code. | ||
| */ | ||
|
|
||
| const NUMBER_CHAR_RE = /\d/ | ||
| const VALID_CHARS = /[A-Za-z0-9]+/ | ||
|
|
||
| /** | ||
| * Returns if the first charcater is uppercase or not | ||
| */ | ||
| function isUppercase(char = ''): boolean | undefined { | ||
| if (NUMBER_CHAR_RE.test(char)) { | ||
| return undefined | ||
| } | ||
| return char !== char.toLowerCase() | ||
| } | ||
|
|
||
| /** | ||
| * Converts the first character to uppercase | ||
| */ | ||
| function upperFirst(value: string): string { | ||
| return value ? value[0].toUpperCase() + value.slice(1) : '' | ||
| } | ||
|
|
||
| /** | ||
| * Converts the first character to lowercase | ||
| */ | ||
| function lowerFirst(value: string) { | ||
| return value ? value[0].toLowerCase() + value.slice(1) : '' | ||
| } | ||
|
|
||
| /** | ||
| * Splits the string value by special characters | ||
| */ | ||
| function splitByCase(value: string) { | ||
| const parts: string[] = [] | ||
| if (!value || typeof value !== 'string') { | ||
| return parts | ||
| } | ||
|
|
||
| let buff = '' | ||
| let previousUpper: boolean | undefined | ||
| let previousSplitter: boolean | undefined | ||
|
|
||
| for (const char of value) { | ||
| const isSplitter = !VALID_CHARS.test(char) | ||
| if (isSplitter === true) { | ||
| parts.push(buff) | ||
| buff = '' | ||
| previousUpper = undefined | ||
| continue | ||
| } | ||
|
|
||
| const isUpper = isUppercase(char) | ||
| if (previousSplitter === false) { | ||
| if (previousUpper === false && isUpper === true) { | ||
| parts.push(buff) | ||
| buff = char | ||
| previousUpper = isUpper | ||
| continue | ||
| } | ||
|
|
||
| if (previousUpper === true && isUpper === false && buff.length > 1) { | ||
| const lastChar = buff.at(-1) | ||
| parts.push(buff.slice(0, Math.max(0, buff.length - 1))) | ||
| buff = lastChar + char | ||
| previousUpper = isUpper | ||
| continue | ||
| } | ||
| } | ||
|
|
||
| buff += char | ||
| previousUpper = isUpper | ||
| previousSplitter = isSplitter | ||
| } | ||
|
|
||
| parts.push(buff) | ||
| return parts | ||
| } | ||
|
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| /** | ||
| * Converts the value to a valid JavaScript variable name | ||
| */ | ||
| export function toVariableName(value: string) { | ||
| const pascalCase = splitByCase(value) | ||
| .map((p) => upperFirst(p.toLowerCase())) | ||
| .join('') | ||
|
|
||
| return /^[0-9]+/.test(pascalCase) ? `var_${pascalCase}` : lowerFirst(pascalCase) | ||
| } |
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