15519 2007-10-15 11:18:44 -0700 eliminate use of <ctype.h> for processing ASCII 2007-10-16 13:26:56 -0700 1 1 1 Unclassified WebKit Web Template Framework 523.x (Safari 3) Mac OS X 10.4 RESOLVED FIXED P2 Normal --- 1 darin darin ggaren mjs oldest_to_newest 58589 0 darin 2007-10-15 11:18:44 -0700 Since <ctype.h> can give locale-specific results, it's not good to use it in WebKit. Also, it's not necessarily fast or efficient enough. We'll use our own instead. 58607 1 darin 2007-10-15 17:04:43 -0700 Committed revision 26638. 58614 2 darin 2007-10-15 17:59:50 -0700 (In reply to comment #1) > Committed revision 26638. Oops. That was for another bug. 58615 3 16683 darin 2007-10-15 18:13:10 -0700 Created attachment 16683 patch 58632 4 16683 eric 2007-10-15 21:45:18 -0700 Comment on attachment 16683 patch I'm a big fan of this change. Those method names are so much cleaner than the ctype ones, and it's nice to get rid of the ctype include hack. I was a little surprised you didn't use template functions to implement the various copy/paste char variants. I would mark this r+ but I didn't stare at the individual is* functions long enough to determine if their actually 100% correct. I expect they are, but I don't trust my brain at this hour. 58664 5 ggaren 2007-10-16 10:59:10 -0700 - if (isalpha(*p) && toupper(*p) != *p) + if (isASCIIAlpha(*p) && toASCIILower(*p) != *p) lstyle = 0; As an EBay reviewer once wrote, "BAD BAD FRAUD." 58666 6 darin 2007-10-16 11:15:22 -0700 (In reply to comment #5) > - if (isalpha(*p) && toupper(*p) != *p) > + if (isASCIIAlpha(*p) && toASCIILower(*p) != *p) > lstyle = 0; > > As an EBay reviewer once wrote, "BAD BAD FRAUD." Oops! I wonder why this one didn't show up as a test failure. I'll look into that. 58667 7 16683 mjs 2007-10-16 11:28:56 -0700 Comment on attachment 16683 patch Would it be reasonable to make these template functions instead of overloads: +inline bool isASCIIAlpha(char c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; } +inline bool isASCIIAlpha(unsigned short c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; } +inline bool isASCIIAlpha(wchar_t c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; } Perhaps DisallowCType.h or ASCIICType.h should have a comment explaining why ASCIICType functions are preferred to regular ctype functions. r=me anyway but please consider these suggestions. 58669 8 ggaren 2007-10-16 11:40:40 -0700 I verified with a table that the ASCII functions are correct. I agree with Maciej that a better explanation / compiler error would help a developer who run into it down the line. 5948 } else if (c == ' ' || ispunct(c)) { 5949 } else if (c == ' ' || c >= 0x21 && c <= 0x2F || c >= 0x3A && c <= 0x40 || c >= 0x5B && c <= 0x60 || c >= 0x7B && c <= 0x7D) { 59495950 Why not provide isASCIIPunct instead? For ASCIICType.h, I think the preferred style is to indent inside a namespace in header files. Also, why so much duplicated code? For instance, why doesn't isASCIIAlphanumeric call isASCIIAlpha? r=me 58670 9 ggaren 2007-10-16 11:40:52 -0700 I verified with a table that the ASCII functions are correct. I agree with Maciej that a better explanation / compiler error would help a developer who run into it down the line. 5948 } else if (c == ' ' || ispunct(c)) { 5949 } else if (c == ' ' || c >= 0x21 && c <= 0x2F || c >= 0x3A && c <= 0x40 || c >= 0x5B && c <= 0x60 || c >= 0x7B && c <= 0x7D) { 59495950 Why not provide isASCIIPunct instead? For ASCIICType.h, I think the preferred style is to indent inside a namespace in header files. Also, why so much duplicated code? For instance, why doesn't isASCIIAlphanumeric call isASCIIAlpha? r=me 58672 10 darin 2007-10-16 12:06:57 -0700 (In reply to comment #9) > - } else if (c == ' ' || ispunct(c)) { > + } else if (c == ' ' || c >= 0x21 && c <= 0x2F || c >= 0x3A && c > <= 0x40 || c >= 0x5B && c <= 0x60 || c >= 0x7B && c <= 0x7D) { > > Why not provide isASCIIPunct instead? To me, this category seems far less definitive than the others. And the rule is specifically about Mac OS X behavior. I suspect that ispunct isn't even the correct rule; at some point we could visit this code and get the rule exactly right for all sorts of keyboards. I don't think it's correct to assume that the only punctuation you could type on a keyboard is ASCII punctuation. I didn't want to dignify the existing rule with a name, but I also didn't want to change behavior. > For ASCIICType.h, I think the preferred style is to indent inside a namespace > in header files. Hyatt and Maciej have been debating this point. I could go either way. > Also, why so much duplicated code? For instance, why doesn't > isASCIIAlphanumeric call isASCIIAlpha? Hard to say exactly why. I like the fact that each of these lines stands alone. I expect that any future changes to this file would primarily be for performance optimization, perhaps to remove some of these functions if we find they aren't really useful, or maybe to add a few more. 58673 11 darin 2007-10-16 12:07:59 -0700 (In reply to comment #7) > (From update of attachment 16683 [edit]) > Would it be reasonable to make these template functions instead of overloads: > > +inline bool isASCIIAlpha(char c) { return (c | 0x20) >= 'a' && (c | 0x20) <= > 'z'; } > +inline bool isASCIIAlpha(unsigned short c) { return (c | 0x20) >= 'a' && (c | > 0x20) <= 'z'; } > +inline bool isASCIIAlpha(wchar_t c) { return (c | 0x20) >= 'a' && (c | 0x20) > <= 'z'; } Maybe. Template functions are more annoying when debugging. I'm feeling slightly conflicted about it, and I think I'll leave it as-is for now. 58675 12 darin 2007-10-16 13:26:56 -0700 Committed revision 26676. 16683 2007-10-15 18:13:10 -0700 2007-10-16 11:28:56 -0700 patch CTypePatch.txt text/plain 82368 darin SW5kZXg6IEphdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBKYXZhU2NyaXB0 Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDI2NjM4KQorKysgSmF2YVNjcmlwdENvcmUvQ2hhbmdl TG9nCSh3b3JraW5nIGNvcHkpCkBAIC0xLDMgKzEsMjUgQEAKKzIwMDctMTAtMTUgIERhcmluIEFk bGVyICA8ZGFyaW5AYXBwbGUuY29tPgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09Q UyEpLgorCisgICAgICAgIC0gaHR0cDovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9 MTU1MTkKKyAgICAgICAgICBlbGltaW5hdGUgdXNlIG9mIDxjdHlwZS5oPiBmb3IgcHJvY2Vzc2lu ZyBBU0NJSQorCisgICAgICAgICogd3RmL0FTQ0lJQ1R5cGUuaDogQWRkZWQuCisgICAgICAgICog d3RmL0Rpc2FsbG93Q1R5cGUuaDogQWRkZWQuCisKKyAgICAgICAgKiBranMvY29uZmlnLmg6IElu 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