patch for Windows MSVC from W32TeX #3
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Thanks a lot for submitting the patch. I'm neither the author nor familiar with this code, but while we wait for the author to respond: do you perhaps have some minimal example demonstrating the problem that the patch is trying to address? Ideally we would probably want to add some unit tests. It's of course not your job to write unit tests. It would however greatly help to have some more information that would be sufficient to add some unit tests. |
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Thank you for your patch. I wrote pplib for luatex, I doubt it is used anywhere else. So I see no obstackles for such changes iff luatex team finds it usefull. If luatex team would like to have it in luatex, then I'd vote for merging this change to pplib master (with respect to some non-critical code comments I left)
| return NULL; | ||
| wmode = get_wstring_from_mbstring(cp, mode, wmode=NULL); | ||
| if (wmode == NULL) | ||
| return NULL; |
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Sanity, if wmode is NULL, wfilename should be freed before return.
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| #include "utilmd5.h" | |||
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| #ifdef _WIN32 /* --ak */ | |||
| extern FILE *ppu8open(const char *filename, const char *mode); | |||
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IMO would be perfect if such redefinitions were in some dedicated place, like utildecl.h, utilplat.h or a new one, containing only platform-dependent code.
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| #include "utillog.h" | |||
| #include "utiliof.h" | |||
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| #ifdef _WIN32 /* --ak */ | |||
| FILE *ppu8open(const char *filename, const char *mode); | |||
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Perhaps there should be util_fopen() function explicitly called in other places, instead of hiding fopen() by a macro?
src/util/utiliof.c
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| fnn = malloc(len + 10); |
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Or meybe unsigned char fnn[MAX_PATH + 10]?
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I have found a document about very long path name:
https://docs.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation?tabs=cmd
In short, very long file name is available after the \\?\ prefix and it could be longer than MAX_PATH.
So, util_malloc() should be better.
src/util/utiliof.c
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| return NULL; | ||
| } | ||
| if (wstr==NULL) { | ||
| wstr = malloc(sizeof(wchar_t)*(len+1)); |
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IMO we should consequently use util_malloc(), as probably all code in pplib. afair there was two reasons to avoid direct calls to malloc():
- easier replacement with some other base allocator (some day maybe)
- low-level check for NULL (and rather brutal solution..)
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I understand pplib defines util_malloc() at util/utilmem.c and is using util_malloc() instead of malloc().
I agree util_malloc() is better.
I heard Akira Kakuto-san have decided to complete his contribution to the TeX community and have closed w32tex.org.
This pull request is the patch derived by @aminophen for Windows MS Visual C from Kakuto-san's W32TeX source code.
I expect the patch is also useful for other compilers mingw and cygwin on Windows.
I would like you to consider pulling it in the master.
The patch treats: