feat: Add string pipeline expressions#2326
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...loud-firestore/src/main/java/com/google/cloud/firestore/pipeline/expressions/Expression.java
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LGTM, just some minor comments
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Adds support for string expressions `ltrim`, `rtrim`, `stringRepeat` `stringReplaceOne` `stringReplaceAll`, `stringIndexOf`. Ported from: googleapis/java-firestore#2326
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Adds support for string expressions `ltrim`, `rtrim`, `stringRepeat` `stringReplaceOne` `stringReplaceAll`, `stringIndexOf`. Ported from: googleapis/java-firestore#2326
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Adds string expressions:
ltrim,rtrim,stringIndexOf,stringReplaceOne,stringReplaceAll,stringRepeat.The
ltrimValueandrtrimValuefunctions exist to avoid duplicate function declarations between the functionsstatic Expression rtrim(Expression: valueToTrim)(trim thevalueToTrimfromthis) andExpression ltrim(Expression: exprToTrim)(trim whitespace fromexprToTrim). This is already done for the existingtrimAPIs here and in Android.Ported from: firebase/firebase-js-sdk#9479