GothenburgBitFactory/taskwarrior
1
0
Fork 0
mirror of https://github.com/GothenburgBitFactory/taskwarrior.git synced 2025-08-20 04:13:07 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

Cleanup

Browse source 
- Converted grammar.bnf to the EBNF used by Parser.
This commit is contained in:
Paul Beckingham 2009-01-28 12:09:24 -05:00
parent b55eaf8f16
commit c28c698bbf
1 changed files with 26 additions and 60 deletions
Download patch file Download diff file Expand all files Collapse all files

86
grammar.bnf
View file

@ -1,69 +1,35 @@
This is a full BNF grammar for the task command line. It is intended that a # This is a full BNF grammar for the task command line. It is intended that a
future release of task will incorporate a complete lexer/parser implementing # future release of task will incorporate a complete lexer/parser implementing
this grammar. # this grammar.
command ::= simple_command
| filter_command filter?
| id_command
| "export" file
| <id>
| <id> <substitution>
command: simple_command ::= "version" | "help" | "projects" | "tags" | "next" | "stats"
VERSION | "color" ;
| HELP
| PROJECTS
| TAGS
| SUMMARY
| HISTORY
| NEXT
| CALENDAR
| ACTIVE
| OVERDUE
| STATS
| USAGE
| OLDEST
| NEWEST
| EXPORT <file>
| COLOR
| DELETE <id>
| UNDELETE <id>
| INFO <id>
| START <id>
| DONE <id>
| ADD [<tags>] [<attrs>] [<desc>]
| LIST [<tags>] [<attrs>] [<desc>]
| LONG [<tags>] [<attrs>] [<desc>]
| LS [<tags>] [<attrs>] [<desc>]
| COMPLETED [<tags>] [<attrs>] [<desc>]
| <id> [<tags>] [<attrs>] [<desc>]
| <id> <substitution>
id: filter_command ::= "summary" | "history" | "calendar" | "active" | "overdue"
\d+ | "oldest" | "newest" | "add" | "list" | "long" | "ls"
| \d{8}-\d{4}-\d{4}-\d{12} | "completed" ;
tags: id_command ::= "delete" | "undelete" | "info" | "start" | "end" | "done"
+<tag> | "undo" ;
| -<tag>
tag: filter ::= filter_part+ ;
\w+
attrs: filter_part ::= tag_add | tag_remove | attribute | word ;
<attr>
| <attr> <attrs>
attr: tag_add ::= "+" word ;
<name>:<value> tag_remove ::= "-" word ;
attribute ::= word ":" word ;
name: word ::= ...
\w+ file ::= ...
id ::= digit+ ;
value: digit ::= "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" ;
.+ substitution ::= "/" word+ "/" word* "/" ;
substitution:
/ <pattern> / <pattern> /
pattern:
.+
file:
?