## Syntax highlighting for (Postgres) SQL scripts.

syntax sql "\.sql$"
comment "-- "

# Types.
color green "\<(integer|int[248]|(big|small)?(int|serial)|decimal|numeric|real|double precision)\>"
color green "\<(bit( varying)?|boolean|bytea|enum|money|tsvector|uuid)\>"
color green "\<(char|varchar|character( varying)?|text)\>"
color green "\<(date|interval|time(stamp)?( with(out)? time zone)?)\>"
color green "\<(box|circle|line|lseg|path|point|polygon)\>"
color green "\<(cidr|inet|macaddr8?)\>"
color green "\<(date|int[48]|num|ts|tstz)range\>"

# SQL keywords.
color blue "\<(ABORT|AGGREGATE|ALTER|ANALYZE|AND|AS|AUTHORIZATION|BEGIN|CAST|CHECKPOINT|CLASS|CLOSE)\>"
color blue "\<(CLUSTER|COLLATION|COMMENT|COMMIT|CONFIGURATION|CONSTRAINTS|CONVERSION|COPY|CREATE)\>"
color blue "\<(DATA|DATABASE|DEALLOCATE|DECLARE|DEFAULT|DELETE|DICTIONARY|DISCARD|DO|DOMAIN|DROP)\>"
color blue "\<(END|EVENT|EXECUTE|EXPLAIN|EXTENSION|FAMILY|FETCH|FOREIGN|FROM|FUNCTION)\>"
color blue "\<(GRANT|GROUP|IF NOT EXISTS|IMMUTABLE|INDEX|INSERT|INTO|LABEL|LANGUAGE|LARGE|LOAD|LOCK)\>"
color blue "\<(MAPPING FOR|MATERIALIZED|MOVE|NOTIFY|OBJECT|OPERATOR|OPTIONS|OWNED|OWNER)\>"
color blue "\<(PARSER|PREPARED?|PRIVILEGES|REASSIGN|REFRESH|RELEASE|RESET|REVOKE|ROLE|ROLLBACK|RULE)\>"
color blue "\<(SAVEPOINT|SCHEMA|SEARCH|SECURITY|SELECT|SEQUENCE|SERVER|SESSION|SET|SHOW|SPACE|START|SYSTEM)\>"
color blue "\<(TABLE|TEXT|TO|TRANSACTION|TYPE|UPDATE|USER|VACUUM|VALUES|VIEW|WHERE|WITH|WRAPPER)\>"

# Flow control.
color brightyellow "\<(CASE|WHEN|IF|THEN|ELSE|ELSE?IF|LOOP|CONTINUE|EXIT)\>"
color brightyellow "\<(FOR|FOREACH|IN|WHILE|END (CASE|IF|LOOP))\>"
color magenta "\<(RAISE|EXCEPTION|NOTICE|RETURN)\>"

# Quoted identifiers.  (First scare-color all, then uncolor what is valid.)
color ,red ""[^"]+""
color normal ""[[:alpha:]_][[:alnum:]_$]*""

# Strings.
color green "'([^']|\\')*'"

# Trailing whitespace.
color ,green "[[:space:]]+$"

# Comments.
color red "--.*"
color brightblue "//.*"
color brightblue start="/\*" end="\*/"

# PostgreSQL default schemas.
color brightred "\<(pg_catalog|public)\>"

# PostgreSQL PLs.
color brightblue "\<pl(java|perlu?|pgsql|py|pythonu?|r|ruby|scheme|sh|tcl)\>"