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Merge pull request #550 from mk3008/547-request-support-for-leading-c…
…omma-sql-formatting Support for Leading Comma SQL Formatting
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| using Carbunql.Clauses; | ||
| using Carbunql.Extensions; | ||
| using Carbunql.Tables; | ||
| using Carbunql.Values; | ||
|
|
||
| namespace Carbunql; | ||
|
|
||
| /// <summary> | ||
| /// Provides logic for formatting tokens in query writing. | ||
| /// </summary> | ||
| public class TrailingCommaTokenFormattingLogic : ITokenFormattingLogic | ||
| { | ||
| /// <summary> | ||
| /// Gets or sets the logger action for logging. | ||
| /// </summary> | ||
| public Action<string>? Logger { get; set; } | ||
|
|
||
| /// <summary> | ||
| /// Determines whether a line break should occur before writing the specified token. | ||
| /// </summary> | ||
| /// <param name="token">The token to evaluate.</param> | ||
| /// <returns>True if a line break is required before writing the token; otherwise, false.</returns> | ||
| public virtual bool IsLineBreakOnBeforeWriteToken(Token token) | ||
| { | ||
| if (token.Text.IsEqualNoCase("with")) return true; | ||
| if (token.Text.IsEqualNoCase("window")) return true; | ||
| if (token.Text.IsEqualNoCase("select")) return true; | ||
|
|
||
| if (token.Text.Equals("/*")) return true; | ||
|
|
||
| if (token.Text.Equals(",") && token.Sender is Relation) return false; | ||
|
|
||
| if (token.Text.IsEqualNoCase("as") && token.Sender is CreateTableQuery) return true; | ||
|
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||
| if (!token.Text.IsEqualNoCase("on") && token.Sender is Relation) return true; | ||
| if (token.Text.IsEqualNoCase("else") || token.Text.IsEqualNoCase("when")) return true; | ||
| if (token.Text.IsEqualNoCase("and")) | ||
| { | ||
| if (token.Sender is BetweenClause) return false; | ||
| if (token.Parent != null && token.Parent.Sender is WhereClause) return true; | ||
| if (token.Parent != null && token.Parent.Sender is HavingClause) return true; | ||
| return false; | ||
| } | ||
|
|
||
| if (token.Text.IsEqualNoCase("where") && token.Parent == null) return true; | ||
|
|
||
| return false; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Determines whether a line break should occur after writing the specified token. | ||
| /// </summary> | ||
| /// <param name="token">The token to evaluate.</param> | ||
| /// <returns>True if a line break is required after writing the token; otherwise, false.</returns> | ||
| public virtual bool IsLineBreakOnAfterWriteToken(Token token) | ||
| { | ||
| if (token.Sender is OperatableQuery) return true; | ||
|
|
||
| if (token.Text.Equals("*/")) return true; | ||
|
|
||
| if (token.Text.Equals(",")) | ||
| { | ||
| if (token.Sender is WithClause) return true; | ||
| if (token.Sender is WindowClause) return true; | ||
| if (token.Sender is SelectClause) return true; | ||
| if (token.Sender is Relation) return true; | ||
| if (token.Sender is GroupClause) return true; | ||
| if (token.Sender is OrderClause) return true; | ||
| if (token.Sender is ValuesQuery) return true; | ||
| if (token.Sender is SetClause) return true; | ||
| if (token.Sender is PartitionClause) return true; | ||
| if (token.Sender is TableDefinitionClause) return true; | ||
| if (token.Sender is IndexOnClause) return true; | ||
| if (token.Sender is AlterTableClause) return true; | ||
| } | ||
|
|
||
|
|
||
|
|
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| return false; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Determines whether the indent level should be incremented before writing the specified token. | ||
| /// </summary> | ||
| /// <param name="token">The token to evaluate.</param> | ||
| /// <returns>True if the indent level should be incremented before writing the token; otherwise, false.</returns> | ||
| public virtual bool IsIncrementIndentOnBeforeWriteToken(Token token) | ||
| { | ||
| if (token.Sender is OperatableQuery) return false; | ||
|
|
||
| if (token.Text.Equals("(") && token.IsReserved == false) return false; | ||
| if (token.Text.Equals("(") && token.Sender is DistinctClause) return false; | ||
| if (token.Text.Equals("(") && token.Sender is InsertClause) return false; | ||
|
|
||
| if (token.Parent != null && token.Parent.Sender is ValuesQuery) return false; | ||
| if (token.Sender is FunctionValue) return false; | ||
| if (token.Sender is FunctionTable) return false; | ||
| if (token.Sender is Interval) return false; | ||
| if (token.Text.IsEqualNoCase("filter")) return false; | ||
| if (token.Text.IsEqualNoCase("over")) return false; | ||
|
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| return true; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Determines whether the indent level should be decremented before writing the specified token. | ||
| /// </summary> | ||
| /// <param name="token">The token to evaluate.</param> | ||
| /// <returns>True if the indent level should be decremented before writing the token; otherwise, false.</returns> | ||
| public virtual bool IsDecrementIndentOnBeforeWriteToken(Token token) | ||
| { | ||
| if (token.Parent == null) return true; | ||
|
|
||
| if (token.Text.Equals(")") && token.IsReserved == false) return false; | ||
|
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| if (token.Parent.Sender is ValuesQuery) return false; | ||
| if (token.Sender is FunctionValue) return false; | ||
| if (token.Sender is FunctionTable) return false; | ||
| if (token.Text.Equals(")") && token.Parent.Text.IsEqualNoCase("filter")) return true; | ||
| if (token.Text.Equals(")") && token.Parent.Text.IsEqualNoCase("over")) return true; | ||
|
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| return true; | ||
| } | ||
| } |
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