gudusoft.gsqlparser.pp2.layout.rules

Class ParenAndCommaRules

Object

gudusoft.gsqlparser.pp2.layout.rules.ParenAndCommaRules

All Implemented Interfaces:

LayoutRule

public final class ParenAndCommaRules
extends Object
implements LayoutRule

Stacks comma-separated list items (SELECT list, GROUP BY, ORDER BY) one per line, placing the linebreak relative to the comma per GFmtOpt.selectColumnlistComma.

Which commas

Only top-level list commas are stacked: a comma whose paren (block) depth equals the depth of its clause run's first token. This excludes commas inside function arguments (count(a, b)) or nested parens — the "nested paren handling" of S26.

Style

Stacking only happens when GFmtOpt.selectColumnlistStyle is TAlignStyle.AsStacked (the default). TAlignStyle.AsWrapped (width-based wrapping) is deferred. Comma placement:

• LfAfterComma — break before the next item (comma trails the line);
• LfBeforeComma — break before the comma (comma leads the next line);
• LfbeforeCommaWithSpace — break before the comma, with a leading space.

Priority LayoutPriorities.JOIN_PAREN_COMMA. Needs the S19 block, S20 sql, and S21 clause analyses attached to the context. Iterative; read-only.

Plan reference: §7.3/S26, §7.4/S26.

Constructor Summary

Constructors

Constructor and Description
ParenAndCommaRules()

Method Summary

Modifier and Type	Method and Description
void	apply(LayoutContext context) Apply the rule, requesting layout decisions on the context.
String	name() Short, stable identifier for logging/diagnostics.
int	priority() The rule's precedence.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ParenAndCommaRules

public ParenAndCommaRules()

Method Detail

priority

public int priority()

Description copied from interface: LayoutRule

The rule's precedence. Higher-priority rules win conflicts over lower-priority ones regardless of registration order.

Specified by:

priority in interface LayoutRule

name

public String name()

Description copied from interface: LayoutRule

Short, stable identifier for logging/diagnostics.

Specified by:

name in interface LayoutRule

apply

public void apply(LayoutContext context)

Description copied from interface: LayoutRule

Apply the rule, requesting layout decisions on the context.

Specified by:

apply in interface LayoutRule