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marginally less unreadable

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Lucia Ceionia
2024-12-03 02:54:12 -06:00
parent 012e963b48
commit 3abb0eaf59
1 changed files with 21 additions and 54 deletions
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75
03/src/main.zig
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@@ -75,56 +75,31 @@ fn run2(s: []const u8) !u64 {
try s_fbs.seekBy(-1); try s_fbs.seekBy(-1);
break :sw STATE.waiting; break :sw STATE.waiting;
}, },
STATE.waiting => { STATE.waiting => {
switch (reader.readByte() catch { switch (reader.readByte() catch { break :read; }) {
break :read; 'm' => { break :sw STATE.m; },
}) { 'd' => { break :sw STATE.d; },
'm' => { else => { break :sw STATE.waiting; },
break :sw STATE.m;
},
'd' => {
break :sw STATE.d;
},
else => {
break :sw STATE.waiting;
},
} }
}, },
STATE.m => if (reader.readByte() catch {
break :read;
} == 'u') STATE.u else STATE.rewind,
STATE.u => if (reader.readByte() catch {
break :read;
} == 'l') STATE.l else STATE.rewind,
STATE.l => if (reader.readByte() catch {
break :read;
} == '(') STATE.open else STATE.rewind,
STATE.d => if (reader.readByte() catch { STATE.m => if (reader.readByte() catch { break :read; } == 'u') STATE.u else STATE.rewind,
break :read; STATE.u => if (reader.readByte() catch { break :read; } == 'l') STATE.l else STATE.rewind,
} == 'o') STATE.o else STATE.rewind, STATE.l => if (reader.readByte() catch { break :read; } == '(') STATE.open else STATE.rewind,
STATE.o => switch (reader.readByte() catch {
break :read; STATE.d => if (reader.readByte() catch { break :read; } == 'o') STATE.o else STATE.rewind,
}) { STATE.o => switch (reader.readByte() catch { break :read; }) {
'n' => STATE.n, 'n' => STATE.n,
'(' => STATE.open_do, '(' => STATE.open_do,
else => STATE.rewind, else => STATE.rewind,
}, },
STATE.open_do => if (reader.readByte() catch { STATE.n => if (reader.readByte() catch { break :read; } == '\'') STATE.apo else STATE.rewind,
break :read; STATE.apo => if (reader.readByte() catch { break :read; } == 't') STATE.t else STATE.rewind,
} == ')') STATE.close_do else STATE.rewind, STATE.t => if (reader.readByte() catch { break :read; } == '(') STATE.open_dont else STATE.rewind,
STATE.n => if (reader.readByte() catch {
break :read; STATE.open_do => if (reader.readByte() catch { break :read; } == ')') STATE.close_do else STATE.rewind,
} == '\'') STATE.apo else STATE.rewind, STATE.open_dont => if (reader.readByte() catch { break :read; } == ')') STATE.close_dont else STATE.rewind,
STATE.apo => if (reader.readByte() catch {
break :read;
} == 't') STATE.t else STATE.rewind,
STATE.t => if (reader.readByte() catch {
break :read;
} == '(') STATE.open_dont else STATE.rewind,
STATE.open_dont => if (reader.readByte() catch {
break :read;
} == ')') STATE.close_dont else STATE.rewind,
STATE.close_do => { STATE.close_do => {
do_mul = true; do_mul = true;
@@ -185,18 +160,10 @@ fn run1(s: []const u8) !u64 {
// state transition // state transition
state = sw: { state = sw: {
break :sw switch (state) { break :sw switch (state) {
STATE.waiting => if (reader.readByte() catch { STATE.waiting => if (reader.readByte() catch { break :read; } == 'm') STATE.m else STATE.waiting,
break :read; STATE.m => if (reader.readByte() catch { break :read; } == 'u') STATE.u else STATE.waiting,
} == 'm') STATE.m else STATE.waiting, STATE.u => if (reader.readByte() catch { break :read; } == 'l') STATE.l else STATE.waiting,
STATE.m => if (reader.readByte() catch { STATE.l => if (reader.readByte() catch { break :read; } == '(') STATE.open else STATE.waiting,
break :read;
} == 'u') STATE.u else STATE.waiting,
STATE.u => if (reader.readByte() catch {
break :read;
} == 'l') STATE.l else STATE.waiting,
STATE.l => if (reader.readByte() catch {
break :read;
} == '(') STATE.open else STATE.waiting,
STATE.open => { STATE.open => {
var fbs = std.io.fixedBufferStream(&buf); var fbs = std.io.fixedBufferStream(&buf);