Commit Graph

23 Commits

Author SHA1 Message Date
beder
104da5c244 Added parsing of anchors, aliases, and tags (still no semantics yet).
Fixed a silly bug in the simple key pushing (queues are FIFO!).
2008-07-01 01:17:10 +00:00
beder
d41503da5a Finished parsing of basic data types (scalar, sequence, map). 2008-06-30 23:57:58 +00:00
beder
146122f455 Renamed the stream member functions get() and eat(). 2008-06-30 22:34:10 +00:00
beder
17533e22da Instead of deriving different tokens from a base Token class, we now use an enumerated TOKEN_TYPE to distinguish types. This is so we don't have to cast all the time when parsing the resulting token stream.
Also, removed start/end stream tokens.
2008-06-30 21:47:21 +00:00
beder
795df7224b Added a peek token command (for the parser to use). 2008-06-30 06:21:12 +00:00
beder
a93584b065 Added directives and tags. 2008-06-30 04:22:41 +00:00
beder
4de9cb48a5 Moved scalar scanning-related parameters to a struct.
Renamed the valid/possible tokens to a single variable status with enums valid, invalid, and unverified.
2008-06-29 17:39:33 +00:00
beder
6efc5614ec Moved the input stream, together with line/column info, into its own class, which allowed some other stuff just to pass the stream, and not have to be a member of Scanner. 2008-06-29 06:32:13 +00:00
beder
45dfc719e1 2008-06-29 00:33:34 +00:00
beder
ab27b9781e Small refactoring. 2008-06-28 22:05:51 +00:00
beder
566916ba19 Added folded and literal scalars. 2008-06-28 20:08:21 +00:00
beder
1a96548fa5 Fixed complex keys. 2008-06-28 17:32:10 +00:00
beder
b1c60706d7 Moved the simple key validation to before each token scan (plus at newlines of scalars). 2008-06-28 16:46:37 +00:00
beder
70afd130ad Added simple keys.
There's a bug (and question): should we test simple keys' validity BEFORE stuff or AFTER stuff?
2008-06-28 06:36:59 +00:00
beder
fb9176a054 Added quoted scalars (with escaping).
Refactored some common whitespace-parsing code in scanning both scalars.
Implemented the flow collection tokens.
2008-06-27 23:11:46 +00:00
beder
ba132b01bc Small plain scalar scanning fixes. 2008-06-27 20:54:43 +00:00
beder
10c4a2687f Split off the specific regular expressions, and the specialized token-scanning functions, into their own files. 2008-06-27 19:13:03 +00:00
beder
aad36b8c47 Added stream input to the regular expressions, greatly simplifying the usage (in particular, we no longer have to specify the number of characters to be checked). 2008-06-27 19:07:30 +00:00
beder
bb4bc8c4ae Wrote a simplified regular expression parser to make life easier (it only does single matches; i.e., no one-or-more matches, etc.).
Fixed some of the whitespace/line break matching.
2008-06-27 08:20:41 +00:00
beder
20dba9cd75 The plain scalar scanner is almost done (and it scans a simple list correctly).
Also messed around with multiple character peeking on the input, and got something working.
2008-06-27 00:18:52 +00:00
beder
c7274ff2e8 More simple scalar scanning. 2008-06-26 22:00:39 +00:00
beder
2040e4de8b Continued working on scanner.
We're now using exceptions for errors, and scanning/pushing tokens is exception-safe (using a set of "limbo tokens").
2008-06-26 19:30:11 +00:00
beder
4b33531240 Started the scanner. 2008-06-26 09:05:28 +00:00