文件列表:

LICENSE (1079, 2023-06-02)
build.zig (1390, 2023-06-02)
example/ (0, 2023-06-02)
example/example.c (247, 2023-06-02)
include/ (0, 2023-06-02)
include/regex.h (853, 2023-06-02)
src/ (0, 2023-06-02)
src/all_test.zig (151, 2023-06-02)
src/c_regex.zig (2341, 2023-06-02)
src/compile.zig (19357, 2023-06-02)
src/debug.zig (4154, 2023-06-02)
src/exec.zig (723, 2023-06-02)
src/input.zig (4051, 2023-06-02)
src/parse.zig (30069, 2023-06-02)
src/parse_test.zig (15592, 2023-06-02)
src/range_set.zig (10172, 2023-06-02)
src/regex.zig (4083, 2023-06-02)
src/regex_test.zig (6623, 2023-06-02)
src/vm_backtrack.zig (6343, 2023-06-02)
src/vm_pike.zig (6741, 2023-06-02)
src/vm_test.zig (6439, 2023-06-02)

An automaton-based regex implementation for [zig](http://ziglang.org/). Note: This is still a work in progress and many things still need to be done. - [x] Capture group support - [ ] UTF-8 support - [ ] More tests (plus some automated tests/fuzzing) - [x] Add a PikeVM implementation - [ ] Literal optimizations and just general performance improvements. ## Usage ```zig const debug = @import("std").debug; const Regex = @import("regex").Regex; test "example" { var re = try Regex.compile(debug.global_allocator, "\\w+"); debug.assert(try re.match("hej") == true); } ``` ## Api ### Regex ```zig fn compile(a: Allocator, re: []const u8) !Regex ``` Compiles a regex string, returning any errors during parsing/compiling. --- ```zig pub fn match(re: *Regex, input: []const u8) !bool ``` Match a compiled regex against some input. The input must be matched in its entirety and from the first index. --- ```zig pub fn partialMatch(re: *Regex, input: []const u8) !bool ``` Match a compiled regex against some input. Unlike `match`, this matches the leftmost and does not have to be anchored to the start of `input`. --- ```zig pub fn captures(re: *Regex, input: []const u8) !?Captures ``` Match a compiled regex against some input. Returns a list of all matching slices in the regex with the first (0-index) being the entire regex. If no match was found, null is returned. ### Captures ```zig pub fn sliceAt(captures: *const Captures, n: usize) ?[]const u8 ``` Return the sub-slice for the numbered capture group. 0 refers to the entire match. ```zig pub fn boundsAt(captures: *const Captures, n: usize) ?Span ``` Return the lower and upper byte positions for the specified capture group. We can retrieve the sub-slice using this function: ```zig const span = caps.boundsAt(0) debug.assert(mem.eql(u8, caps.sliceAt(0), input[span.lower..span.upper])); ``` --- ## References See the following useful sources: - https://swtch.com/~rsc/regexp/ - [Rust Regex Library](https://github.com/rust-lang/regex) - [Go Regex Library](https://github.com/golang/go/tree/master/src/regexp)

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