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Tidy unnecessarily complicated macros in escapes table.

This commit is contained in:
Philip.Hazel 2018-08-19 16:54:41 +00:00
parent db00606a79
commit 1c6f2fc972
3 changed files with 26 additions and 54 deletions
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2
ChangeLog
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@ -168,6 +168,8 @@ auto-possessified, causing incorrect match failures.
36. Removed the character type bit ctype_meta, which dates from PCRE1 and is
not used in PCRE2.
37. Tidied up unnecessarily complicated macros used in the escapes table.
Version 10.31 12-February-2018
------------------------------

36
src/pcre2_compile.c
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@ -512,17 +512,17 @@ static const short int escapes[] = {
-ESC_Z, CHAR_LEFT_SQUARE_BRACKET,
CHAR_BACKSLASH, CHAR_RIGHT_SQUARE_BRACKET,
CHAR_CIRCUMFLEX_ACCENT, CHAR_UNDERSCORE,
CHAR_GRAVE_ACCENT, ESC_a,
CHAR_GRAVE_ACCENT, CHAR_BEL,
-ESC_b, 0,
-ESC_d, ESC_e,
ESC_f, 0,
-ESC_d, CHAR_ESC,
CHAR_FF, 0,
-ESC_h, 0,
0, -ESC_k,
0, 0,
ESC_n, 0,
CHAR_LF, 0,
-ESC_p, 0,
ESC_r, -ESC_s,
ESC_tee, 0,
CHAR_CR, -ESC_s,
CHAR_HT, 0,
-ESC_v, -ESC_w,
0, 0,
-ESC_z
@ -546,20 +546,20 @@ because it is defined as 'a', which of course picks up the ASCII value. */
#endif
static const short int escapes[] = {
/* 80 */ ESC_a, -ESC_b, 0, -ESC_d, ESC_e, ESC_f, 0,
/* 88 */-ESC_h, 0, 0, '{', 0, 0, 0, 0,
/* 90 */ 0, 0, -ESC_k, 0, 0, ESC_n, 0, -ESC_p,
/* 98 */ 0, ESC_r, 0, '}', 0, 0, 0, 0,
/* A0 */ 0, '~', -ESC_s, ESC_tee, 0,-ESC_v, -ESC_w, 0,
/* A8 */ 0,-ESC_z, 0, 0, 0, '[', 0, 0,
/* 80 */ CHAR_BEL, -ESC_b, 0, -ESC_d, CHAR_ESC, CHAR_FF, 0,
/* 88 */ -ESC_h, 0, 0, '{', 0, 0, 0, 0,
/* 90 */ 0, 0, -ESC_k, 0, 0, CHAR_LF, 0, -ESC_p,
/* 98 */ 0, CHAR_CR, 0, '}', 0, 0, 0, 0,
/* A0 */ 0, '~', -ESC_s, CHAR_HT, 0, -ESC_v, -ESC_w, 0,
/* A8 */ 0, -ESC_z, 0, 0, 0, '[', 0, 0,
/* B0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* B8 */ 0, 0, 0, 0, 0, ']', '=', '-',
/* C0 */ '{',-ESC_A, -ESC_B, -ESC_C, -ESC_D,-ESC_E, 0, -ESC_G,
/* C8 */-ESC_H, 0, 0, 0, 0, 0, 0, 0,
/* D0 */ '}', 0, -ESC_K, 0, 0,-ESC_N, 0, -ESC_P,
/* D8 */-ESC_Q,-ESC_R, 0, 0, 0, 0, 0, 0,
/* E0 */ '\\', 0, -ESC_S, 0, 0,-ESC_V, -ESC_W, -ESC_X,
/* E8 */ 0,-ESC_Z, 0, 0, 0, 0, 0, 0,
/* C0 */ '{', -ESC_A, -ESC_B, -ESC_C, -ESC_D, -ESC_E, 0, -ESC_G,
/* C8 */ -ESC_H, 0, 0, 0, 0, 0, 0, 0,
/* D0 */ '}', 0, -ESC_K, 0, 0, -ESC_N, 0, -ESC_P,
/* D8 */ -ESC_Q, -ESC_R, 0, 0, 0, 0, 0, 0,
/* E0 */ '\\', 0, -ESC_S, 0, 0, -ESC_V, -ESC_W, -ESC_X,
/* E8 */ 0, -ESC_Z, 0, 0, 0, 0, 0, 0,
/* F0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* F8 */ 0, 0
};

30
src/pcre2_internal.h
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@ -1248,36 +1248,6 @@ contain characters with values greater than 255. */
#define XCL_PROP 3 /* Unicode property (2-byte property code follows) */
#define XCL_NOTPROP 4 /* Unicode inverted property (ditto) */
/* Escape items that are just an encoding of a particular data value. These
appear in the escapes[] table in pcre2_compile.c as positive numbers. */
#ifndef ESC_a
#define ESC_a CHAR_BEL
#endif
#ifndef ESC_e
#define ESC_e CHAR_ESC
#endif
#ifndef ESC_f
#define ESC_f CHAR_FF
#endif
#ifndef ESC_n
#define ESC_n CHAR_LF
#endif
#ifndef ESC_r
#define ESC_r CHAR_CR
#endif
/* We can't officially use ESC_t because it is a POSIX reserved identifier
(presumably because of all the others like size_t). */
#ifndef ESC_tee
#define ESC_tee CHAR_HT
#endif
/* These are escaped items that aren't just an encoding of a particular data
value such as \n. They must have non-zero values, as check_escape() returns 0
for a data character. In the escapes[] table in pcre2_compile.c their values