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parser: add initial parser for control verbs

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This more reliably handles control verbs like (*UTF8) that can only
happen at the start of the pattern, and allows them in any ordering.
This commit is contained in:
Justin Viiret
2017-01-12 12:35:54 +11:00
committed by Matthew Barr
parent d43e9d838f
commit 1875d55cf1
6 changed files with 208 additions and 24 deletions
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9
unit/hyperscan/bad_patterns.txt
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@@ -90,8 +90,8 @@
91:/a\owibble/ #Value in \o{...} sequence is non-octal or missing braces at index 1.
92:/a\o{wibble/ #Value in \o{...} sequence is non-octal or missing braces at index 1.
93:/a\o{777}/ #Value in \o{...} sequence is too large at index 1.
94:/(*UTF16)foo/ #(*UTF16) not supported at index 2.
95:/(*BSR_UNICODE)abc/ #Unknown control verb at index 2.
94:/(*UTF16)foo/ #Unsupported control verb (*UTF16) at index 0.
95:/(*BSR_UNICODE)abc/ #Unsupported control verb (*BSR_UNICODE) at index 0.
96:/a+(*SKIP)b/ #Unknown control verb at index 4.
97:/foo(*/ #Invalid repeat at index 4.
98:/[:\]:]/ #POSIX named classes are only supported inside a class at index 0.
@@ -130,3 +130,8 @@
133:/[a[.\].]]/ #Unsupported POSIX collating element at index 2.
134:/[a[=\]=]]/ #Unsupported POSIX collating element at index 2.
135:/[^\D\d]/8W #Pattern can never match.
136:/(*LIMIT_MATCH=1000)foobar/ #Unsupported control verb (*LIMIT_MATCH=1000) at index 0.
137:/(*UTF32)foobar/ #Unsupported control verb (*UTF32) at index 0.
138:/(*UNKNOWNVERB)foobar/ #Unknown control verb (*UNKNOWNVERB) at index 0.
139:/foo(*UTF8)bar/ #(*UTF8) must be at start of expression, encountered at index 5.
140:/(?i)(*UTF8)foobar/ #(*UTF8) must be at start of expression, encountered at index 6.