angular-translation-checker
Version:
A comprehensive tool for analyzing translation keys in Angular projects using ngx-translate
90 lines • 3.77 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.HtmlExtractor = void 0;
class HtmlExtractor {
constructor() {
this.name = 'html-extractor';
this.version = '1.0.0';
this.description = 'Extracts translation keys from HTML template files';
this.supportedExtensions = ['.html'];
}
async initialize(context) {
this.logger = context.logger;
this.logger.debug('HTML extractor initialized');
}
async extractKeys(filePath, content) {
const keys = [];
try {
// Pattern for pipe usage: 'key' | translate
const pipePattern = /['"`]([^'"`]+)['"`]\s*\|\s*translate/g;
// Pattern for translate directive: [translate]="'key'"
const directivePattern = /\[translate\]=['"`]([^'"`]+)['"`]/g;
// Pattern for translate attribute: translate="key"
const attributePattern = /translate=['"`]([^'"`]+)['"`]/g;
// Pattern for interpolation with translate: {{ 'key' | translate }}
const interpolationPattern = /{{\s*['"`]([^'"`]+)['"`]\s*\|\s*translate\s*}}/g;
const patterns = [
pipePattern,
directivePattern,
attributePattern,
interpolationPattern
];
for (const pattern of patterns) {
let match;
while ((match = pattern.exec(content)) !== null) {
keys.push(this.createTranslationKey(match[1], filePath, content, match.index));
}
}
// Pattern for dynamic keys in templates
const dynamicPatterns = [
/\|\s*translate:\s*([^}\s]+)/g, // | translate: variable
/{{\s*([^'"`\s|]+)\s*\|\s*translate\s*}}/g, // {{ variable | translate }}
];
for (const pattern of dynamicPatterns) {
let match;
while ((match = pattern.exec(content)) !== null) {
const key = match[1].trim();
if (this.isDynamicKey(key)) {
keys.push(this.createTranslationKey(key, filePath, content, match.index, 'dynamic'));
}
}
}
// Extract keys from structural directives
const structuralDirectives = [
/\*ngFor="[^"]*['"`]([^'"`]+)['"`][^"]*\|\s*translate/g,
/\*ngIf="[^"]*['"`]([^'"`]+)['"`][^"]*\|\s*translate/g,
];
for (const pattern of structuralDirectives) {
let match;
while ((match = pattern.exec(content)) !== null) {
keys.push(this.createTranslationKey(match[1], filePath, content, match.index));
}
}
}
catch (error) {
this.logger.warn(`Error extracting keys from ${filePath}: ${error}`);
}
return keys;
}
createTranslationKey(key, filePath, content, index, context) {
const lines = content.substring(0, index).split('\n');
const line = lines.length;
const column = lines[lines.length - 1].length + 1;
return {
key: key.trim(),
file: filePath,
line,
column,
context
};
}
isDynamicKey(key) {
// Check for variable references in templates
return /^[a-zA-Z_$][a-zA-Z0-9_$]*/.test(key) && // Looks like a variable
!key.includes('.') && // Not a property chain
!key.includes("'") && // Not a string literal
!key.includes('"'); // Not a string literal
}
}
exports.HtmlExtractor = HtmlExtractor;
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