mirrors/zig
1
0
Fork 0
mirror of https://codeberg.org/ziglang/zig.git synced 2025-12-06 13:54:21 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

std.ascii: rename indexOf functions to find

Browse source 
This aligns with the recent changes in std.mem.find
This commit is contained in:
Adrià Arrufat 2025-12-04 10:44:27 +09:00 • committed by mlugg
parent 032e3c9254
commit 1a420a8dca
1 changed files with 25 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

41
lib/std/ascii.zig
View file

@ -156,7 +156,7 @@ test whitespace {
var i: u8 = 0;
while (isAscii(i)) : (i += 1) {
if (isWhitespace(i)) try std.testing.expect(std.mem.indexOfScalar(u8, &whitespace, i) != null);
if (isWhitespace(i)) try std.testing.expect(std.mem.findScalar(u8, &whitespace, i) != null);
}
}
@ -357,19 +357,25 @@ test endsWithIgnoreCase {
try std.testing.expect(!endsWithIgnoreCase("BoB", "Bo"));
}
/// Deprecated in favor of `findIgnoreCase`.
pub const indexOfIgnoreCase = findIgnoreCase;
/// Finds `needle` in `haystack`, ignoring case, starting at index 0.
pub fn indexOfIgnoreCase(haystack: []const u8, needle: []const u8) ?usize {
return indexOfIgnoreCasePos(haystack, 0, needle);
pub fn findIgnoreCase(haystack: []const u8, needle: []const u8) ?usize {
return findIgnoreCasePos(haystack, 0, needle);
}
/// Deprecated in favor of `findIgnoreCasePos`.
pub const indexOfIgnoreCasePos = findIgnoreCasePos;
/// Finds `needle` in `haystack`, ignoring case, starting at `start_index`.
/// Uses Boyer-Moore-Horspool algorithm on large inputs; `indexOfIgnoreCasePosLinear` on small inputs.
pub fn indexOfIgnoreCasePos(haystack: []const u8, start_index: usize, needle: []const u8) ?usize {
/// Uses Boyer-Moore-Horspool algorithm on large inputs; `findIgnoreCasePosLinear` on small inputs.
pub fn findIgnoreCasePos(haystack: []const u8, start_index: usize, needle: []const u8) ?usize {
if (needle.len > haystack.len) return null;
if (needle.len == 0) return start_index;
if (haystack.len < 52 or needle.len <= 4)
return indexOfIgnoreCasePosLinear(haystack, start_index, needle);
return findIgnoreCasePosLinear(haystack, start_index, needle);
var skip_table: [256]usize = undefined;
boyerMooreHorspoolPreprocessIgnoreCase(needle, skip_table[0..]);
@ -383,9 +389,12 @@ pub fn indexOfIgnoreCasePos(haystack: []const u8, start_index: usize, needle: []
return null;
}
/// Consider using `indexOfIgnoreCasePos` instead of this, which will automatically use a
/// Deprecated in favor of `findIgnoreCaseLinear`.
pub const indexOfIgnoreCasePosLinear = findIgnoreCasePosLinear;
/// Consider using `findIgnoreCasePos` instead of this, which will automatically use a
/// more sophisticated algorithm on larger inputs.
pub fn indexOfIgnoreCasePosLinear(haystack: []const u8, start_index: usize, needle: []const u8) ?usize {
pub fn findIgnoreCasePosLinear(haystack: []const u8, start_index: usize, needle: []const u8) ?usize {
var i: usize = start_index;
const end = haystack.len - needle.len;
while (i <= end) : (i += 1) {
@ -407,15 +416,15 @@ fn boyerMooreHorspoolPreprocessIgnoreCase(pattern: []const u8, table: *[256]usiz
}
}
test indexOfIgnoreCase {
try std.testing.expect(indexOfIgnoreCase("one Two Three Four", "foUr").? == 14);
try std.testing.expect(indexOfIgnoreCase("one two three FouR", "gOur") == null);
try std.testing.expect(indexOfIgnoreCase("foO", "Foo").? == 0);
try std.testing.expect(indexOfIgnoreCase("foo", "fool") == null);
try std.testing.expect(indexOfIgnoreCase("FOO foo", "fOo").? == 0);
test findIgnoreCase {
try std.testing.expect(findIgnoreCase("one Two Three Four", "foUr").? == 14);
try std.testing.expect(findIgnoreCase("one two three FouR", "gOur") == null);
try std.testing.expect(findIgnoreCase("foO", "Foo").? == 0);
try std.testing.expect(findIgnoreCase("foo", "fool") == null);
try std.testing.expect(findIgnoreCase("FOO foo", "fOo").? == 0);
try std.testing.expect(indexOfIgnoreCase("one two three four five six seven eight nine ten eleven", "ThReE fOUr").? == 8);
try std.testing.expect(indexOfIgnoreCase("one two three four five six seven eight nine ten eleven", "Two tWo") == null);
try std.testing.expect(findIgnoreCase("one two three four five six seven eight nine ten eleven", "ThReE fOUr").? == 8);
try std.testing.expect(findIgnoreCase("one two three four five six seven eight nine ten eleven", "Two tWo") == null);
}
/// Returns the lexicographical order of two slices. O(n).