taskpaper.lua (900B)
- -- Copyright (c) 2016-2024 Larry Hynes. See LICENSE.
- -- Taskpaper LPeg lexer
- local lexer = lexer
- local P, S = lpeg.P, lpeg.S
- local lex = lexer.new(..., {lex_by_line = true})
- -- Notes.
- local delimiter = lpeg.B(' ') + lpeg.B('\t')
- lex:add_rule('note', delimiter * lex:tag('note', lexer.to_eol(lexer.alnum)))
- -- Tasks.
- lex:add_rule('task', delimiter * lex:tag(lexer.LIST, '-'))
- -- Projects.
- lex:add_rule('project', lex:tag(lexer.HEADING,
- lexer.range(lexer.starts_line(lexer.alnum), ':') * lexer.newline))
- -- Tags.
- lex:add_rule('extended_tag', lex:tag(lexer.TAG .. '.extended', '@' * lexer.word * '(' *
- (lexer.word + lexer.digit + '-')^1 * ')'))
- lex:add_rule('day_tag', lex:tag(lexer.TAG .. '.day', (P('@today') + '@tomorrow')))
- lex:add_rule('overdue_tag', lex:tag(lexer.TAG .. '.overdue', '@overdue'))
- lex:add_rule('plain_tag', lex:tag(lexer.TAG .. '.plain', '@' * lexer.word))
- return lex