3f5f8fad2c
Removed unnecessary functions (using staticcheck)
2025-01-27 19:58:59 -05:00
e671137493
Changed error messages - removed capitalization and punctuation to find Go's error message guidelines
2025-01-27 19:57:15 -05:00
abc40bf770
Return an error if a POSIX charclass is specified outside of brackets
2025-01-27 16:07:23 -05:00
3fb9bc1446
Added support for POSIX character classes
2025-01-27 16:00:35 -05:00
ae76e2e55e
Added a function to generate a slice of all values (inclusive) in a range
2025-01-27 16:00:26 -05:00
dec6aaca93
Added POSIX charclass tests
2025-01-27 16:00:05 -05:00
43d0cbf0a0
Use 'CONCAT' instead of literally specifiying the rune
2025-01-27 13:54:02 -05:00
68a3581d93
Added note on PCRE backreferences
2025-01-26 22:19:16 -05:00
ff250338b4
Added more tests; added backreference comment
2025-01-26 22:18:34 -05:00
0367c0d614
Added more tests
2025-01-26 10:24:29 -05:00
304ef68d45
Added more tests
2025-01-25 22:41:43 -05:00
1db61108e4
Allow pipes that have a missing operand - if an operand is missing, it is replaced with a zeroLengthMatchState(), which always has a zero-length match
2025-01-25 22:36:58 -05:00
8feaefeeb8
Added more tests
2025-01-25 22:36:04 -05:00
a259f0ceab
Created a function to return a state that will always have a zero-length state
2025-01-25 22:35:52 -05:00
08e01a1c81
Loosened restrictions for concatenation - It's okay if one of the
...
elements is missing
2025-01-25 13:09:47 -05:00
5c2869ff81
Updated test case
2025-01-25 13:09:29 -05:00
4dfc77900f
Added new assertion that always evaluates to true
2025-01-25 13:04:51 -05:00
93903fc557
Allowed creation of empty non-capturing groups
2025-01-25 13:04:36 -05:00
036e625a15
Added more test cases
2025-01-25 13:04:08 -05:00
4966a222f9
Added detection of empty parentheses, as zero-length matches
2025-01-25 12:44:40 -05:00
263619c50c
Added more test cases
2025-01-25 12:23:15 -05:00
d7c9c181e1
Fixed bug in character class implementation
2025-01-24 19:48:53 -05:00
5a085907cf
WIP - fixing character classes
2025-01-24 17:06:19 -05:00
65e5b4e2af
Added more test cases
2025-01-24 17:06:00 -05:00
1520edad55
Enforce the rule that character classes must have at least one character; interpret literal closing brackets as regular characters
2025-01-24 15:50:36 -05:00
6fb266e0d2
Refactored isNormalChar(), wrote function to get special characters that have metachar replacements
2025-01-24 15:49:33 -05:00
423fcc9b54
Added more test cases (1 failing)
2025-01-24 14:58:18 -05:00
cf4d305b31
Allow hyphen to be escaped inside character class
2025-01-24 14:58:07 -05:00
9d3c228ace
Fixed edge cases with character ranges and character classes
2025-01-24 14:57:47 -05:00
5e12fe1c42
Added 'flags' field to test struct for all-group tests
2025-01-24 11:11:48 -05:00
f87458ee99
Added 'flags' field to test struct for 0-group tests
2025-01-24 11:10:01 -05:00
2937f2d917
Removed old comment
2025-01-22 20:27:35 -05:00
efab70f9dc
Implemented character range detection later in the code, using a metacharacter
2025-01-22 20:26:58 -05:00
cf964e41db
Modified genRange() so that it can work on ints and runes
2025-01-22 20:25:49 -05:00
649485f01d
Removed character range creation from the first part of shuntingYard() (the part that adds concatenation operators), because octal and hex values haven't yet been deciphered at this point in the code
2025-01-22 16:51:00 -05:00
ae09462bd4
Added important note
2025-01-21 22:19:37 -05:00
d210a85253
Updated handling of '\b' when inside character class, made invalid
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escapes an error.
The '\b' value refers to a word boundary normally, but refers to the
backspace ASCII value inside a character class. I updated
newEscapedNode() to deal with this. I also changed the behavior, so that
trying to escape any other value results in an error, instead of just
returning the character as-is.
2025-01-21 22:14:38 -05:00
48cff259b2
Updated tests
2025-01-21 22:13:57 -05:00
25cb79f01b
Changed the value of EPSILON, so that we can use the NUL character
...
(which it used to be) in a regex; Also added code to detect escaped
backslashes
Specifically, I replace an escaped backslash with a metacharacter, then
replace it back later on. This prevents problems, like detecting whether
the opening bracket is escaped in '\\[a]'.
2025-01-21 22:12:29 -05:00
0fb78abf7f
Added function to replace an element in a slice given its value
2025-01-21 22:09:41 -05:00
9dc4fd4595
Started adding tests from Python's RE test suite
2025-01-20 18:04:19 -05:00
099612ae7f
Bug fixes, changed the way I parse octal values
2025-01-20 18:04:05 -05:00
9115858261
Changed assignment of the unicode values by 1, so that EPSILON can now be 0xF0000
2025-01-20 17:08:07 -05:00
fb46ed62d9
Added tests for FindString
2025-01-19 22:56:47 -05:00
47ec95f7bb
Created function that returns a 'default' state
2025-01-19 21:45:07 -06:00
a14ab81697
Updated function names, addeed new function 'FindString' that returns the _text_ of the match
2025-01-19 21:44:15 -06:00
7056026e10
Added a new class 'CHARCLASS', which represents a character class with some other postfixNodes in it. The 'except' field now contains a list of postfixNodes rather than runes
2025-01-19 21:43:21 -06:00
b81a2f8452
Added functions to find if a character is a valid hex value and a valid octal value
2025-01-19 21:31:18 -06:00
fcdb4a8868
Added another test, changed function calls to match new names
2025-01-19 21:30:56 -06:00
3a3333b38a
New features, changed character class behavior
...
I added support for hex values (eg. \x0F), octal values (eg. \012) and
extended hex values (eg. \x{000F2A}). I also expanded the abilities of
character clsses, to include things like escaped characters (eg. [aefp\)])
and character ranges _inside_ inverted character classes (eg. [^\w] which is
functionally equivalent to [\W]).
2025-01-19 21:26:56 -06:00
