| 52 |
argument for the match() function, which reduces its stack requirements |
argument for the match() function, which reduces its stack requirements |
| 53 |
slightly. This change also fixes an incompatibility with Perl: the pattern |
slightly. This change also fixes an incompatibility with Perl: the pattern |
| 54 |
(?i:([^b]))(?1) should not match "ab", but previously PCRE gave a match. |
(?i:([^b]))(?1) should not match "ab", but previously PCRE gave a match. |
| 55 |
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|
| 56 |
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10. More internal refactoring has drastically reduced the number of recursive |
| 57 |
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calls to match() for possessively repeated groups such as (abc)++ when |
| 58 |
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using pcre_exec(). |
| 59 |
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|
| 60 |
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11. While implementing 10, a number of bugs in the handling of groups were |
| 61 |
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discovered and fixed: |
| 62 |
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|
| 63 |
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(?<=(a)+) was not diagnosed as invalid (non-fixed-length lookbehind). |
| 64 |
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(a|)*(?1) gave a compile-time internal error. |
| 65 |
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((a|)+)+ did not notice that the outer group could match an empty string. |
| 66 |
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(^a|^)+ was not marked as anchored. |
| 67 |
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(.*a|.*)+ was not marked as matching at start or after a newline. |
| 68 |
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| 69 |
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12. Yet more internal refactoring has removed another argument from the match() |
| 70 |
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function. Special calls to this function are now indicated by setting a |
| 71 |
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value in a variable in the "match data" data block. |
| 72 |
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| 73 |
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| 74 |
Version 8.12 15-Jan-2011 |
Version 8.12 15-Jan-2011 |
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