Packages

relative_time

0.3.0
0.3.1 0.3.0 0.2.0 0.1.0

DSL to express absolute and relative times, similar to grafana

HexDocs

Current section

Files

Jump to
Readme
4 Versions
1 Dependency
Dependants
Files
Activity
relative_time src relative_time_tokenizer.xrl
Raw

src/relative_time_tokenizer.xrl 

Definitions.



MONTH = [0-9]{2}

DAY = [0-9]{2}

MINUTE = [0-9]{2}

SECOND = [0-9]{2}

HOUR = [0-9]{2}

YEAR = [0-9]{4}



PLUS = \+

MINUS = \-

DIVIDE = \/

INTEGER = [0-9]+

UNIT = [smhdwMy]

WHITESPACE = [\s\t\n\r]

WORD = [a-zA-Z_][a-zA-Z0-9_]*

P_OPEN = \(

P_CLOSE = \)

COLON = \:



Rules.



([0-9]{4})(\-[0-9]{2})? : {token, {test, TokenLine, list_to_binary(TokenChars)}}.



{YEAR}{MINUS}{MONTH}{MINUS}{DAY}T{HOUR}{COLON}{MINUTE}{COLON}{SECOND} : {token, {dt_parts, TokenLine, <<"{YYYY}-{M}-{D}T{h24}:{m}:{s}">>, [year, month, day, hour, minute, second], list_to_binary(TokenChars)}}.

{YEAR}{MINUS}{MONTH}{MINUS}{DAY}\s{HOUR}{COLON}{MINUTE}{COLON}{SECOND} : {token, {dt_parts, TokenLine, <<"{YYYY}-{M}-{D} {h24}:{m}:{s}">>, [year, month, day, hour, minute, second], list_to_binary(TokenChars)}}.

{YEAR}{MINUS}{MONTH}{MINUS}{DAY}T{HOUR}{COLON}{MINUTE} : {token, {dt_parts, TokenLine, <<"{YYYY}-{M}-{D}T{h24}:{m}">>, [year, month, day, hour, minute], list_to_binary(TokenChars)}}.

{YEAR}{MINUS}{MONTH}{MINUS}{DAY}\s{HOUR}{COLON}{MINUTE} : {token, {dt_parts, TokenLine, <<"{YYYY}-{M}-{D} {h24}:{m}">>, [year, month, day, hour, minute], list_to_binary(TokenChars)}}.

{YEAR}{MINUS}{MONTH}{MINUS}{DAY}T{HOUR} : {token, {dt_parts, TokenLine, <<"{YYYY}-{M}-{D}T{h24}">>, [year, month, day, hour], list_to_binary(TokenChars)}}.

{YEAR}{MINUS}{MONTH}{MINUS}{DAY}\s{HOUR} : {token, {dt_parts, TokenLine, <<"{YYYY}-{M}-{D} {h24}">>, [year, month, day, hour], list_to_binary(TokenChars)}}.

{YEAR}{MINUS}{MONTH}{MINUS}{DAY} : {token, {dt_parts, TokenLine, <<"{YYYY}-{M}-{D}">>, [year, month, day], list_to_binary(TokenChars)}}.

{YEAR}{MINUS}{MONTH} : {token, {dt_parts, TokenLine, <<"{YYYY}-{M}">>, [year, month], list_to_binary(TokenChars)}}.

{YEAR} : {token, {dt_parts, TokenLine, <<"{YYYY}">>, [year], list_to_binary(TokenChars)}}.



{HOUR}{COLON}{MINUTE}{COLON}{SECOND} : {token, {dt_parts, TokenLine, <<"{h24}:{m}:{s}">>, [hour, minute, second], list_to_binary(TokenChars)}}.

{HOUR}{COLON}{MINUTE} : {token, {dt_parts, TokenLine, <<"{h24}:{m}">>, [hour, minute], list_to_binary(TokenChars)}}.



{INTEGER} : {token, {number, TokenLine, list_to_integer(TokenChars)}}.

{PLUS}   : {token, {'+', TokenLine}}.

{MINUS}  : {token, {'-', TokenLine}}.

{DIVIDE} : {token, {'/', TokenLine}}.

{UNIT} : {token, {unit, TokenLine, list_to_binary(TokenChars)}}.

{P_OPEN}    : {token, {'(', TokenLine}}.

{P_CLOSE}   : {token, {')', TokenLine}}.

{COLON} : {token, {':', TokenLine}}.

{WORD}  : {token, {word, TokenLine, list_to_binary(TokenChars)}}.

{WHITESPACE}+ : skip_token.





Erlang code.