[Core] Move project to PCRE2 #2299
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Well took me a bit to fix all the hiccups so sorry for the mass force push and stuff... Problem with windows related thing still apply... |
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@andywolk any news with this? |
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@dragos-oancea @andywolk Any chance someone can look at this? This is one of the few remaining package that still depends on PCRE and we are trying to drop PCRE on openwrt. Most of the changes as simple and straight migration from PCRE to PCRE2. |
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Guys, kind reminder. 2 weeks passed. This PR is here since 3rd November. @jakubkarolczyk Any chance to review this, please? |
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Ping |
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That first commit could probably go as a separate fix regardless. |
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I could also reswig master so this PR does not have to have that swig commit. |
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The swig commit in this PR is not required. |
For mod_verto regex was never freed and was actually leaking memory. Correctly free the compiled regex to fix the memory leak. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Move project to PCRE2 as PCRE is EOL and won't receive any security updates anymore. PCRE2 have different API compared to PCRE. Mainly PCRE2 have the concept of match_data, no ovector needs to be passed, different handling for error string and different handling for substring manipulation. Update any user of PCRE library with the new API Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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@andywolk I split the fix commit in a separate PR. I will drop the commit from here once it's merged. Thanks a lot for the followup |
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@andywolk BTW is also produced this alternative version Ansuel@60ad581 This doesn't cause ANY change in the current API but have some hacks in mind:
Honestly the HACK are big enough to really justify new API but that requires as you notice making any module that might use switch regex incompatible :( Maybe it's possible to propose to PCRE2 devs to introduce some additional API to construct a match_data externally (that is really what we need) but I doubt the would accept something like that. For sure a big reason might be that, that single change permits an almost 1:1 translation of old PCRE API to the new one. |
Move project to PCRE2 as PCRE is EOL and won't receive any security
updates anymore.
PCRE2 have different API compared to PCRE. Mainly PCRE2 have the concept
of match_data, no ovector needs to be passed, different handling for
error string and different handling for substring manipulation.
Update any user of PCRE library with the new API
Signed-off-by: Christian Marangi ansuelsmth@gmail.com
This also have 2 bugfix that i found while doing the conversion..
Codewise I should have ported anything... What I need help is in the visual studio project files and some other small thing... Hope someone can help with them!