simple query parser

simple-query-parser.ts

const one = '{one}';
const two = '{two}';
const three = '{three}';

const oneAndTwoAndThree = '{one} + {two} + {three}';
const oneNotTwo = '{one} - {two}';
const oneAndTwoNotThree = '{one} + {two} - {three}';
const oneOrTwoOrThree = '{one} | {two} | {three}';

const quoteAnalysisParser = (query: string, values: string[]) => {
    if(!values.length) return false;
    const valuesLowercase = values.map(v => v.toLowerCase());
    const params = [];
    const operators = [];
    for (let i = 0; i < query.length; i++) {
        if(query[i] === '{') {
            let param = '';
            i++
            while (query[i] !== '}') {
                param += query[i];
                i++;
            }
            params.push(param.toLowerCase());
            continue;
        }
        if(['+', '-', '|'].includes(query[i])) operators.push(query[i]);
    }

    if(!params.length) throw new Error('No params found, could not parse');

    if(!operators.length) return valuesLowercase.includes(params[0]);

    for (let i = 0; i < operators.length; i++) {
        switch(operators[i]) {
            case '+':
                if(
                    !(valuesLowercase.includes(params[i]) 
                    && valuesLowercase.includes(params[i+1]))
                ) return false;
                break;
            case '-':
                if(!valuesLowercase.includes(params[i])) return false;
                if(valuesLowercase.includes(params[i + 1])) return false;
                break;
            case '|':
                if(valuesLowercase.includes(params[i]) || valuesLowercase.includes(params[i+1])) return true;
                if(i === operators.length - 1) return false;
                break;
        }
    }
    return true;
};

console.log('Single Item Examples');
console.log('Expect true:', quoteAnalysisParser(one, ['one', 'two']));
console.log('Expect true:', quoteAnalysisParser(two, ['one', 'two']));
console.log('Expect false:', quoteAnalysisParser(three, ['one', 'two']));
console.log('--------------');
console.log('And Examples');
console.log('Expect true:', quoteAnalysisParser(oneAndTwoAndThree, ['one', 'two', 'three']));
console.log('Expect false:', quoteAnalysisParser(oneAndTwoAndThree, ['one', 'two']));
console.log('--------------');
console.log('Not Examples');
console.log('Expect true:', quoteAnalysisParser(oneAndTwoNotThree, ['one', 'two'])); // true
console.log('Expect false:', quoteAnalysisParser(oneAndTwoNotThree, ['one', 'two', 'three']));
console.log('Expect true:', quoteAnalysisParser(oneNotTwo, ['one']));
console.log('--------------');
console.log('Or Examples');
console.log('Expect true:', quoteAnalysisParser(oneOrTwoOrThree, ['one', 'two', 'three']));
console.log('Expect true:', quoteAnalysisParser(oneOrTwoOrThree, ['one']));
console.log('Expect true:', quoteAnalysisParser(oneOrTwoOrThree, ['two'])); 
console.log('Expect true:', quoteAnalysisParser(oneOrTwoOrThree, ['three']));
console.log('Expect false:', quoteAnalysisParser(oneOrTwoOrThree, ['four', 'five', 'six']));
console.log('--------------');
console.log('Demo of actual names')
console.log('Expect true:', quoteAnalysisParser(
    '{Tempo Budgets} + {Tempo Timesheets-Time Tracking & Reports}', 
    ['Tempo Budgets', 'Tempo Timesheets-Time Tracking & Reports']
));
console.log('Expect false:', quoteAnalysisParser(
    '{Tempo Budgets} + {Tempo Timesheets-Time Tracking & Reports}', 
    ['Tempo Budgets']
));
console.log('Expect false:', quoteAnalysisParser('{Structure - Project Management at Scale} - {Structure.Gantt - Planning at Scale}', [
    "Tempo Budgets", 
    "Tempo Planner: Resource Planning", 
    "Extension for Jira Service Desk Data Center", 
    "Extension for Jira Service Desk"
]));