Improve query builder.

[akotlar]

In the web app, move from regex to something like PEG/ohm.

• [x] Fix Pankaj synonym issue: synonym name should match exactly

• [ ] Prototype Ohm query syntax

[akotlar]

Synonym issue partial fix made. Unfortunately there doesn't seem to be a perfect way of handling this in Pankaj's case, where one synonym is the prefix of another. My current solution avoids the use of word boundaries to also allow symbols like underscores, and checks synonyms in descending order by length to be as greedy as possible.

if (this.synonyms) {
      const synonyms = Object.keys(this.synonyms).sort(
        (a, b) => b.length - a.length
      );

      for (const synonym of synonyms) {
        const val = this.synonyms[synonym];

        query = query.replace(synonym, () => {
          if (Array.isArray(val)) {
            return `( ${val.join(" OR ")} )`;
          }

          return val;
        });
      }
    }