/src/cpython/Objects/stringlib/replace.h
Line | Count | Source |
1 | | /* stringlib: replace implementation */ |
2 | | |
3 | | #ifndef STRINGLIB_FASTSEARCH_H |
4 | | #error must include "stringlib/fastsearch.h" before including this module |
5 | | #endif |
6 | | |
7 | | Py_LOCAL_INLINE(void) |
8 | | STRINGLIB(replace_1char_inplace)(STRINGLIB_CHAR* s, STRINGLIB_CHAR* end, |
9 | | Py_UCS4 u1, Py_UCS4 u2, Py_ssize_t maxcount) |
10 | 1.64M | { |
11 | 1.64M | *s = u2; |
12 | 132M | while (--maxcount && ++s != end) { |
13 | | /* Find the next character to be replaced. |
14 | | |
15 | | If it occurs often, it is faster to scan for it using an inline |
16 | | loop. If it occurs seldom, it is faster to scan for it using a |
17 | | function call; the overhead of the function call is amortized |
18 | | across the many characters that call covers. We start with an |
19 | | inline loop and use a heuristic to determine whether to fall back |
20 | | to a function call. */ |
21 | 132M | if (*s != u1) { |
22 | 7.60M | int attempts = 10; |
23 | | /* search u1 in a dummy loop */ |
24 | 27.2M | while (1) { |
25 | 27.2M | if (++s == end) |
26 | 1.06M | return; |
27 | 26.1M | if (*s == u1) |
28 | 5.79M | break; |
29 | 20.3M | if (!--attempts) { |
30 | | /* if u1 was not found for attempts iterations, |
31 | | use FASTSEARCH() or memchr() */ |
32 | | #ifdef STRINGLIB_FAST_MEMCHR |
33 | | s++; |
34 | 133k | s = STRINGLIB_FAST_MEMCHR(s, u1, end - s); |
35 | 133k | if (s == NULL) |
36 | 36.0k | return; |
37 | | #else |
38 | | Py_ssize_t i; |
39 | 617k | STRINGLIB_CHAR ch1 = (STRINGLIB_CHAR) u1; |
40 | | s++; |
41 | 617k | i = FASTSEARCH(s, end - s, &ch1, 1, 0, FAST_SEARCH); |
42 | 617k | if (i < 0) |
43 | 259k | return; |
44 | 358k | s += i; |
45 | 358k | #endif |
46 | | /* restart the dummy loop */ |
47 | 97.8k | break; |
48 | 751k | } |
49 | 20.3M | } |
50 | 7.60M | } |
51 | 130M | *s = u2; |
52 | 130M | } |
53 | 1.64M | } unicodeobject.c:ucs1lib_replace_1char_inplace Line | Count | Source | 10 | 627k | { | 11 | 627k | *s = u2; | 12 | 42.4M | while (--maxcount && ++s != end) { | 13 | | /* Find the next character to be replaced. | 14 | | | 15 | | If it occurs often, it is faster to scan for it using an inline | 16 | | loop. If it occurs seldom, it is faster to scan for it using a | 17 | | function call; the overhead of the function call is amortized | 18 | | across the many characters that call covers. We start with an | 19 | | inline loop and use a heuristic to determine whether to fall back | 20 | | to a function call. */ | 21 | 42.2M | if (*s != u1) { | 22 | 1.54M | int attempts = 10; | 23 | | /* search u1 in a dummy loop */ | 24 | 4.26M | while (1) { | 25 | 4.26M | if (++s == end) | 26 | 402k | return; | 27 | 3.86M | if (*s == u1) | 28 | 1.03M | break; | 29 | 2.82M | if (!--attempts) { | 30 | | /* if u1 was not found for attempts iterations, | 31 | | use FASTSEARCH() or memchr() */ | 32 | 102k | #ifdef STRINGLIB_FAST_MEMCHR | 33 | 102k | s++; | 34 | 102k | s = STRINGLIB_FAST_MEMCHR(s, u1, end - s); | 35 | 102k | if (s == NULL) | 36 | 29.7k | return; | 37 | | #else | 38 | | Py_ssize_t i; | 39 | | STRINGLIB_CHAR ch1 = (STRINGLIB_CHAR) u1; | 40 | | s++; | 41 | | i = FASTSEARCH(s, end - s, &ch1, 1, 0, FAST_SEARCH); | 42 | | if (i < 0) | 43 | | return; | 44 | | s += i; | 45 | | #endif | 46 | | /* restart the dummy loop */ | 47 | 73.2k | break; | 48 | 102k | } | 49 | 2.82M | } | 50 | 1.54M | } | 51 | 41.8M | *s = u2; | 52 | 41.8M | } | 53 | 627k | } |
unicodeobject.c:ucs2lib_replace_1char_inplace Line | Count | Source | 10 | 1.00M | { | 11 | 1.00M | *s = u2; | 12 | 69.2M | while (--maxcount && ++s != end) { | 13 | | /* Find the next character to be replaced. | 14 | | | 15 | | If it occurs often, it is faster to scan for it using an inline | 16 | | loop. If it occurs seldom, it is faster to scan for it using a | 17 | | function call; the overhead of the function call is amortized | 18 | | across the many characters that call covers. We start with an | 19 | | inline loop and use a heuristic to determine whether to fall back | 20 | | to a function call. */ | 21 | 69.1M | if (*s != u1) { | 22 | 5.11M | int attempts = 10; | 23 | | /* search u1 in a dummy loop */ | 24 | 21.4M | while (1) { | 25 | 21.4M | if (++s == end) | 26 | 654k | return; | 27 | 20.7M | if (*s == u1) | 28 | 3.84M | break; | 29 | 16.9M | if (!--attempts) { | 30 | | /* if u1 was not found for attempts iterations, | 31 | | use FASTSEARCH() or memchr() */ | 32 | | #ifdef STRINGLIB_FAST_MEMCHR | 33 | | s++; | 34 | | s = STRINGLIB_FAST_MEMCHR(s, u1, end - s); | 35 | | if (s == NULL) | 36 | | return; | 37 | | #else | 38 | 617k | Py_ssize_t i; | 39 | 617k | STRINGLIB_CHAR ch1 = (STRINGLIB_CHAR) u1; | 40 | 617k | s++; | 41 | 617k | i = FASTSEARCH(s, end - s, &ch1, 1, 0, FAST_SEARCH); | 42 | 617k | if (i < 0) | 43 | 259k | return; | 44 | 358k | s += i; | 45 | 358k | #endif | 46 | | /* restart the dummy loop */ | 47 | 358k | break; | 48 | 617k | } | 49 | 16.9M | } | 50 | 5.11M | } | 51 | 68.2M | *s = u2; | 52 | 68.2M | } | 53 | 1.00M | } |
unicodeobject.c:ucs4lib_replace_1char_inplace Line | Count | Source | 10 | 15.6k | { | 11 | 15.6k | *s = u2; | 12 | 20.7M | while (--maxcount && ++s != end) { | 13 | | /* Find the next character to be replaced. | 14 | | | 15 | | If it occurs often, it is faster to scan for it using an inline | 16 | | loop. If it occurs seldom, it is faster to scan for it using a | 17 | | function call; the overhead of the function call is amortized | 18 | | across the many characters that call covers. We start with an | 19 | | inline loop and use a heuristic to determine whether to fall back | 20 | | to a function call. */ | 21 | 20.7M | if (*s != u1) { | 22 | 944k | int attempts = 10; | 23 | | /* search u1 in a dummy loop */ | 24 | 1.55M | while (1) { | 25 | 1.55M | if (++s == end) | 26 | 4.45k | return; | 27 | 1.55M | if (*s == u1) | 28 | 909k | break; | 29 | 645k | if (!--attempts) { | 30 | | /* if u1 was not found for attempts iterations, | 31 | | use FASTSEARCH() or memchr() */ | 32 | 30.9k | #ifdef STRINGLIB_FAST_MEMCHR | 33 | 30.9k | s++; | 34 | 30.9k | s = STRINGLIB_FAST_MEMCHR(s, u1, end - s); | 35 | 30.9k | if (s == NULL) | 36 | 6.29k | return; | 37 | | #else | 38 | | Py_ssize_t i; | 39 | | STRINGLIB_CHAR ch1 = (STRINGLIB_CHAR) u1; | 40 | | s++; | 41 | | i = FASTSEARCH(s, end - s, &ch1, 1, 0, FAST_SEARCH); | 42 | | if (i < 0) | 43 | | return; | 44 | | s += i; | 45 | | #endif | 46 | | /* restart the dummy loop */ | 47 | 24.6k | break; | 48 | 30.9k | } | 49 | 645k | } | 50 | 944k | } | 51 | 20.7M | *s = u2; | 52 | 20.7M | } | 53 | 15.6k | } |
|