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const std = @import("std");
const testing = std.testing;
const Allocator = std.mem.Allocator;
const lib = @import("../lib.zig");
const CAllocator = lib.alloc.Allocator;
const sgr = @import("../sgr.zig");
const Result = @import("result.zig").Result;
const log = std.log.scoped(.sgr);
/// Wrapper around parser that tracks the allocator for C API usage.
const ParserWrapper = struct {
parser: sgr.Parser,
alloc: Allocator,
};
/// C: GhosttySgrParser
pub const Parser = ?*ParserWrapper;
pub fn new(
alloc_: ?*const CAllocator,
result: *Parser,
) callconv(lib.calling_conv) Result {
const alloc = lib.alloc.default(alloc_);
const ptr = alloc.create(ParserWrapper) catch
return .out_of_memory;
ptr.* = .{
.parser = .empty,
.alloc = alloc,
};
result.* = ptr;
return .success;
}
pub fn free(parser_: Parser) callconv(lib.calling_conv) void {
const wrapper = parser_ orelse return;
const alloc = wrapper.alloc;
const parser: *sgr.Parser = &wrapper.parser;
if (parser.params.len > 0) alloc.free(parser.params);
alloc.destroy(wrapper);
}
pub fn reset(parser_: Parser) callconv(lib.calling_conv) void {
const wrapper = parser_ orelse return;
const parser: *sgr.Parser = &wrapper.parser;
parser.idx = 0;
}
pub fn setParams(
parser_: Parser,
params: [*]const u16,
seps_: ?[*]const u8,
len: usize,
) callconv(lib.calling_conv) Result {
const wrapper = parser_ orelse return .invalid_value;
const alloc = wrapper.alloc;
const parser: *sgr.Parser = &wrapper.parser;
// Copy our new parameters
const params_slice = alloc.dupe(u16, params[0..len]) catch
return .out_of_memory;
if (parser.params.len > 0) alloc.free(parser.params);
parser.params = params_slice;
// If we have separators, set that state too.
parser.params_sep = .initEmpty();
if (seps_) |seps| {
if (len > @TypeOf(parser.params_sep).bit_length) {
log.warn("ghostty_sgr_set_params: separators length {} exceeds max supported length {}", .{
len,
@TypeOf(parser.params_sep).bit_length,
});
return .invalid_value;
}
for (seps[0..len], 0..) |sep, i| {
if (sep == ':') parser.params_sep.set(i);
}
}
// Reset our parsing state
parser.idx = 0;
return .success;
}
pub fn next(
parser_: Parser,
result: *sgr.Attribute.C,
) callconv(lib.calling_conv) bool {
const wrapper = parser_ orelse return false;
const parser: *sgr.Parser = &wrapper.parser;
if (parser.next()) |attr| {
result.* = attr.cval();
return true;
}
return false;
}
pub fn unknown_full(
unknown: sgr.Attribute.Unknown.C,
ptr: ?*[*]const u16,
) callconv(lib.calling_conv) usize {
if (ptr) |p| p.* = unknown.full_ptr;
return unknown.full_len;
}
pub fn unknown_partial(
unknown: sgr.Attribute.Unknown.C,
ptr: ?*[*]const u16,
) callconv(lib.calling_conv) usize {
if (ptr) |p| p.* = unknown.partial_ptr;
return unknown.partial_len;
}
pub fn attribute_tag(
attr: sgr.Attribute.C,
) callconv(lib.calling_conv) sgr.Attribute.Tag {
return attr.tag;
}
pub fn attribute_value(
attr: *sgr.Attribute.C,
) callconv(lib.calling_conv) *sgr.Attribute.CValue {
return &attr.value;
}
test "alloc" {
var p: Parser = undefined;
try testing.expectEqual(Result.success, new(
&lib.alloc.test_allocator,
&p,
));
free(p);
}
test "simple params, no seps" {
var p: Parser = undefined;
try testing.expectEqual(Result.success, new(
&lib.alloc.test_allocator,
&p,
));
defer free(p);
try testing.expectEqual(Result.success, setParams(
p,
&.{1},
null,
1,
));
// Set it twice on purpose to make sure we don't leak.
try testing.expectEqual(Result.success, setParams(
p,
&.{1},
null,
1,
));
// Verify we get bold
var attr: sgr.Attribute.C = undefined;
try testing.expect(next(p, &attr));
try testing.expectEqual(.bold, attr.tag);
// Nothing else
try testing.expect(!next(p, &attr));
}
|
