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git/ctype.c

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Unlocalized isspace and friends Do our own ctype.h, just to get the sane semantics: we want locale-independence, _and_ we want the right signed behaviour. Plus we only use a very small subset of ctype.h anyway (isspace, isalpha, isdigit and isalnum). Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-13 20:03:18 +02:00
/*
* Sane locale-independent, ASCII ctype.
*
* No surprises, and works with signed and unsigned chars.
*/
ctype.c only wants git-compat-util.h The implementation of sane ctype macros only depends on symbols in git-compat-util.h not cache.h Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-10 03:13:30 +01:00
#include "git-compat-util.h"
Unlocalized isspace and friends Do our own ctype.h, just to get the sane semantics: we want locale-independence, _and_ we want the right signed behaviour. Plus we only use a very small subset of ctype.h anyway (isspace, isalpha, isdigit and isalnum). Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-13 20:03:18 +02:00
Reformat ctype.c Enhance the readability of ctype.c by using an enum instead of macros to initialize the character class table. This allows the use of a single letter to mark a char, making the table fit within 80 columns. Also list the index of the last entry in each row in the following comment. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17 16:50:29 +01:00
enum {
S = GIT_SPACE,
A = GIT_ALPHA,
D = GIT_DIGIT,
Change NUL char handling of isspecial() Replace isspecial() by the new macro is_glob_special(), which is more, well, specialized. The former included the NUL char in its character class, while the letter only included characters that are special to file name globbing. The new name contains underscores because they enhance readability considerably now that it's made up of three words. Renaming the function is necessary to document its changed scope. The call sites of isspecial() are updated to check explicitly for NUL. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17 16:50:34 +01:00
G = GIT_GLOB_SPECIAL, /* *, ?, [, \\ */
magic pathspec: futureproof shorthand form The earlier design was to take whatever non-alnum that the short format parser happens to support, leaving the rest as part of the pattern, so a version of git that knows '*' magic and a version that does not would have behaved differently when given ":*Makefile". The former would have applied the '*' magic to the pattern "Makefile", while the latter would used no magic to the pattern "*Makefile". Instead, just reserve all non-alnum ASCII letters that are neither glob nor regexp special as potential magic signature, and when we see a magic that is not supported, die with an error message, just like the longhand codepath does. With this, ":%#!*Makefile" will always mean "%#!" magic applied to the pattern "*Makefile", no matter what version of git is used (it is a different matter if the version of git supports all of these three magic matching rules). Also make ':' without anything else to mean "there is no pathspec". This would allow differences between "git log" and "git log ." run from the top level of the working tree (the latter simplifies no-op commits away from the history) to be expressed from a subdirectory by saying "git log :". Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-09 01:18:46 +02:00
R = GIT_REGEX_SPECIAL, /* $, (, ), +, ., ^, {, | */
ctype: support iscntrl, ispunct, isxdigit and isprint Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15 08:25:51 +02:00
P = GIT_PATHSPEC_MAGIC, /* other non-alnum, except for ] and } */
X = GIT_CNTRL,
U = GIT_PUNCT,
Z = GIT_CNTRL | GIT_SPACE
Reformat ctype.c Enhance the readability of ctype.c by using an enum instead of macros to initialize the character class table. This allows the use of a single letter to mark a char, making the table fit within 80 columns. Also list the index of the last entry in each row in the following comment. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17 16:50:29 +01:00
};
Unlocalized isspace and friends Do our own ctype.h, just to get the sane semantics: we want locale-independence, _and_ we want the right signed behaviour. Plus we only use a very small subset of ctype.h anyway (isspace, isalpha, isdigit and isalnum). Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-13 20:03:18 +02:00
ctype: make sane_ctype[] const array Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15 08:25:50 +02:00
const unsigned char sane_ctype[256] = {
ctype: support iscntrl, ispunct, isxdigit and isprint Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15 08:25:51 +02:00
X, X, X, X, X, X, X, X, X, Z, Z, X, X, Z, X, X, /* 0.. 15 */
X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, /* 16.. 31 */
magic pathspec: futureproof shorthand form The earlier design was to take whatever non-alnum that the short format parser happens to support, leaving the rest as part of the pattern, so a version of git that knows '*' magic and a version that does not would have behaved differently when given ":*Makefile". The former would have applied the '*' magic to the pattern "Makefile", while the latter would used no magic to the pattern "*Makefile". Instead, just reserve all non-alnum ASCII letters that are neither glob nor regexp special as potential magic signature, and when we see a magic that is not supported, die with an error message, just like the longhand codepath does. With this, ":%#!*Makefile" will always mean "%#!" magic applied to the pattern "*Makefile", no matter what version of git is used (it is a different matter if the version of git supports all of these three magic matching rules). Also make ':' without anything else to mean "there is no pathspec". This would allow differences between "git log" and "git log ." run from the top level of the working tree (the latter simplifies no-op commits away from the history) to be expressed from a subdirectory by saying "git log :". Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-09 01:18:46 +02:00
S, P, P, P, R, P, P, P, R, R, G, R, P, P, R, P, /* 32.. 47 */
D, D, D, D, D, D, D, D, D, D, P, P, P, P, P, G, /* 48.. 63 */
P, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, /* 64.. 79 */
ctype: support iscntrl, ispunct, isxdigit and isprint Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15 08:25:51 +02:00
A, A, A, A, A, A, A, A, A, A, A, G, G, U, R, P, /* 80.. 95 */
magic pathspec: futureproof shorthand form The earlier design was to take whatever non-alnum that the short format parser happens to support, leaving the rest as part of the pattern, so a version of git that knows '*' magic and a version that does not would have behaved differently when given ":*Makefile". The former would have applied the '*' magic to the pattern "Makefile", while the latter would used no magic to the pattern "*Makefile". Instead, just reserve all non-alnum ASCII letters that are neither glob nor regexp special as potential magic signature, and when we see a magic that is not supported, die with an error message, just like the longhand codepath does. With this, ":%#!*Makefile" will always mean "%#!" magic applied to the pattern "*Makefile", no matter what version of git is used (it is a different matter if the version of git supports all of these three magic matching rules). Also make ':' without anything else to mean "there is no pathspec". This would allow differences between "git log" and "git log ." run from the top level of the working tree (the latter simplifies no-op commits away from the history) to be expressed from a subdirectory by saying "git log :". Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-09 01:18:46 +02:00
P, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, /* 96..111 */
ctype: support iscntrl, ispunct, isxdigit and isprint Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15 08:25:51 +02:00
A, A, A, A, A, A, A, A, A, A, A, R, R, U, P, X, /* 112..127 */
Unlocalized isspace and friends Do our own ctype.h, just to get the sane semantics: we want locale-independence, _and_ we want the right signed behaviour. Plus we only use a very small subset of ctype.h anyway (isspace, isalpha, isdigit and isalnum). Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-13 20:03:18 +02:00
/* Nothing in the 128.. range */
};
grep: use static trans-case table In order to prepare the kwset machinery for a case-insensitive search, we used to use a static table of 256 elements and filled it every time before calling kwsalloc(). Because the kwset machinery will never modify this table, just allocate a single instance globally and fill it at the compile time. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-28 23:20:53 +01:00
/* For case-insensitive kwset */
kwset: use unsigned char to store values with high-bit set Sun Studio on Solaris issues warnings about improper initialization values being used when defining tolower_trans_tbl[] in ctype.c. The array wants to store values with high-bit set and treat them as values between 128 to 255. Unlike the rest of the Git codebase where we explicitly specify 'unsigned char' for such variables and arrays, however, kwset code we borrowed from elsewhere uses 'char' for this and other variables. Fix the declarations to explicitly use 'unsigned char' where necessary to bring it in line with the rest of the Git. Signed-off-by: Ben Walton <bdwalton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-02 20:22:31 +01:00
const unsigned char tolower_trans_tbl[256] = {
grep: use static trans-case table In order to prepare the kwset machinery for a case-insensitive search, we used to use a static table of 256 elements and filled it every time before calling kwsalloc(). Because the kwset machinery will never modify this table, just allocate a single instance globally and fill it at the compile time. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-28 23:20:53 +01:00
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
' ', '!', '"', '#', '$', '%', '&', 0x27,
'(', ')', '*', '+', ',', '-', '.', '/',
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', ':', ';', '<', '=', '>', '?',
'@', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
'x', 'y', 'z', '[', 0x5c, ']', '^', '_',
'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
'x', 'y', 'z', '{', '|', '}', '~', 0x7f,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
};
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