perf: optimize preprocessor parser

ishche · ishche · commit 28111b9eb012 · 2024-10-03T13:42:41.000+02:00
diff --git a/server/engine/src/main/antlr4/org/eclipse/lsp/cobol/core/CobolPreprocessor.g4 b/server/engine/src/main/antlr4/org/eclipse/lsp/cobol/core/CobolPreprocessor.g4
@@ -10,8 +10,8 @@ parser grammar CobolPreprocessor;
 options {tokenVocab = CobolPreprocessorLexer;}
 
 startRule
-   : .*? ((includeStatement | copyStatement | replaceAreaStartOrOffStatement | titleDirective | enterDirective
-   | controlDirective | plusplusIncludeStatement)+ .*?)* EOF
+   : (includeStatement | copyStatement | replaceAreaStartOrOffStatement | titleDirective | enterDirective
+   | controlDirective | plusplusIncludeStatement | .)* EOF
    ;
 
 // copy statement

Original file line number	Diff line number	Diff line change
`@@ -10,8 +10,8 @@ parser grammar CobolPreprocessor;`
`10`	`10`	`options {tokenVocab = CobolPreprocessorLexer;}`
`11`	`11`
`12`	`12`	`startRule`
`13`		`- : .*? ((includeStatement \| copyStatement \| replaceAreaStartOrOffStatement \| titleDirective \| enterDirective`
`14`		`- \| controlDirective \| plusplusIncludeStatement)+ .?) EOF`
	`13`	`+ : (includeStatement \| copyStatement \| replaceAreaStartOrOffStatement \| titleDirective \| enterDirective`
	`14`	`+ \| controlDirective \| plusplusIncludeStatement \| .)* EOF`
`15`	`15`	`;`
`16`	`16`
`17`	`17`	`// copy statement`