228 Commits

Author	SHA1	Message	Date
Cheer Xiao	7d0133b27d	parse: Remove unused (and broken) code	2013-10-06 17:56:19 +08:00
Cheer Xiao	511448237e	parse: Lex and parse dollar $	2013-10-06 15:01:13 +08:00
Cheer Xiao	c925871ef4	parse: Always use *ListNode for Term's	2013-10-06 14:55:28 +08:00
Cheer Xiao	585e047ca5	parse: Introduce FactorNode to represent Factor	2013-10-06 14:27:00 +08:00
Cheer Xiao	84cdc6c50f	parse: Remove outdated TODO	2013-10-06 13:07:45 +08:00
Cheer Xiao	e4db8e7d0d	parse: Lex comments as ItemSpace (until we need fancier comment handling)	2013-10-06 10:45:16 +08:00
Cheer Xiao	7b20e5f45b	parse: Fix unquoting of ItemSingleQuoted and termination of bareword ... ItemSingleQuoted is now quoted with ` now.	2013-10-05 09:53:58 +08:00
Cheer Xiao	4a78397c7f	parse: Lex (but not yet parse) ItemComment ... Comments can only start at start of line or after spaces. Thus `echo a#` doesn't have a comment.	2013-10-05 09:40:26 +08:00
Cheer Xiao	a4301d195f	Parse and evaluate factor of term list ... Note: the evaluation is currently a stub.	2013-10-05 00:19:40 +08:00
Cheer Xiao	b5319c9528	parse: Introduce ItemList node; allow empty pipeline	2013-10-05 00:11:28 +08:00
Cheer Xiao	755ff1a26e	parse: Backquote is now used for single-quoting	2013-10-04 23:59:57 +08:00
Cheer Xiao	a24ad63573	parse: Terminate barewords at " ' too	2013-10-04 23:59:08 +08:00
Cheer Xiao	c9b29f6447	Implement parsing & evaluation of terms ... What used to be terms are now just factors.	2013-10-04 23:57:49 +08:00
Cheer Xiao	9ea3d77043	parse: Document the grammar	2013-10-04 23:49:00 +08:00
Cheer Xiao	77342c2bd4	parse: Parse single-rune tokens more compactly	2013-10-04 23:25:30 +08:00
Cheer Xiao	1e0cebf749	parse: More compact use of switch/case	2013-10-04 23:21:14 +08:00
Cheer Xiao	257bb658e8	parse: Add tokens LParen and RParen	2013-10-04 23:18:52 +08:00
Cheer Xiao	a69cc93bec	parse: Stricter rule for bareword termination	2013-10-04 23:15:17 +08:00
Cheer Xiao	e6f0375f64	Use uintptr for fd in IO redirections. ... IO redirections use os module now, which uses uintptr for fd.	2013-09-19 18:11:01 +08:00
Cheer Xiao	f2d35b8c39	Evaluate pipeline. Pipes are not yet connected.	2013-09-19 13:20:55 +08:00
Cheer Xiao	9ba448c92d	parse: Update comment	2013-09-18 19:47:38 +08:00
Cheer Xiao	8ec1a90f33	parse: Parse a pipeline ... das only executes the first command now.	2013-09-18 19:46:34 +08:00
Cheer Xiao	fbb4e376b0	parse: Include name of item type in Item.String	2013-09-18 19:38:15 +08:00
Cheer Xiao	7c69e3b5b1	parse: Lex the pipe (not parsing it yet)	2013-09-18 19:34:03 +08:00
Cheer Xiao	21837bc0a3	parse: Remove unneeded NodeType	2013-09-18 19:20:22 +08:00
Cheer Xiao	18d1e9bf40	parse: Cleanup, docs	2013-09-18 19:14:13 +08:00
Cheer Xiao	7fb91a572a	parse: Expose the chan inside Lexer; close chan after lexing ends	2013-09-18 18:03:17 +08:00
Cheer Xiao	4f931c52cb	Simplify source tree	2013-09-18 16:40:47 +08:00