History

Jiquan Long b4f797506d Fix err msg of invalid expression (#17296 ) Signed-off-by: longjiquan <jiquan.long@zilliz.com>		2022-06-01 10:00:07 +08:00
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generated	Replace plan parser with antlr (#17090 )	2022-05-19 17:15:57 +08:00
Plan.g4	Replace plan parser with antlr (#17090 )	2022-05-19 17:15:57 +08:00
README.md	Support antlr as plan parser (#16696 )	2022-05-06 17:43:51 +08:00
check_identical.go	Add logic for search merging and a simple task scheduler for read tasks (#17022 )	2022-05-23 16:41:58 +08:00
check_identical_test.go	Add logic for search merging and a simple task scheduler for read tasks (#17022 )	2022-05-23 16:41:58 +08:00
error_listener.go	Support antlr as plan parser (#16696 )	2022-05-06 17:43:51 +08:00
floating_comparision.go	Support antlr as plan parser (#16696 )	2022-05-06 17:43:51 +08:00
floating_comparision_test.go	Support antlr as plan parser (#16696 )	2022-05-06 17:43:51 +08:00
logical_expr_visitor.go	Support antlr as plan parser (#16696 )	2022-05-06 17:43:51 +08:00
node_ret.go	Support antlr as plan parser (#16696 )	2022-05-06 17:43:51 +08:00
operators.go	Support antlr as plan parser (#16696 )	2022-05-06 17:43:51 +08:00
parser_visitor.go	Fix err msg of invalid expression (#17296 )	2022-06-01 10:00:07 +08:00
pattern_match.go	Limit and translate pattern match operations (#16818 )	2022-05-07 16:31:52 +08:00
pattern_match_test.go	Limit and translate pattern match operations (#16818 )	2022-05-07 16:31:52 +08:00
plan_parser_v2.go	Fix pool of lexer and parser (#17129 )	2022-05-20 18:47:57 +08:00
plan_parser_v2_test.go	Fix err msg of invalid expression (#17296 )	2022-06-01 10:00:07 +08:00
pool.go	Fix pool of lexer and parser (#17129 )	2022-05-20 18:47:57 +08:00
pool_test.go	Fix pool of lexer and parser (#17129 )	2022-05-20 18:47:57 +08:00
show_visitor.go	Support antlr as plan parser (#16696 )	2022-05-06 17:43:51 +08:00
utils.go	Fix err msg of invalid expression (#17296 )	2022-06-01 10:00:07 +08:00
utils_test.go	Fix err msg of invalid expression (#17296 )	2022-06-01 10:00:07 +08:00

README.md

Generate Parser with Antlr4

Install Antlr4

Please follow install antlr4 to install the antlr tool.

The version of antlr tool: 4.9.

Code Generate

After you install the antlr4, you can generate the parser code in golang with:

export CLASSPATH=".:${PWD}/antlr-4.9-complete.jar:$CLASSPATH"
alias antlr4='java -Xmx500M -cp "${PWD}/antlr-4.9-complete.jar:$CLASSPATH" org.antlr.v4.Tool'
alias grun='java -Xmx500M -cp "${PWD}/antlr-4.9-complete.jar:$CLASSPATH" org.antlr.v4.gui.TestRig'

antlr4 -Dlanguage=Go -package planparserv2 -o generated -no-listener -visitor Plan.g4

All generated code will be under directory generated.