Compare commits

..

No commits in common. "90bc830a9a46186e19504164072c3bdac140f550" and "9fd41a61bf283850c444399380ab8a819a99893a" have entirely different histories.

2 changed files with 2 additions and 65 deletions

View file

@ -193,7 +193,7 @@ pub const Image = struct {
sseek(out_file, start);
while (i <= end) : (i += buf.len) {
std.debug.warn("\t\ti={}, buf.len={}, end={}\n", i, buf.len, end);
std.debug.warn("i={}, buf.len={}, end={}\n", i, buf.len, end);
sseek(self.sndfile, i);
sseek(out_file, i);

View file

@ -6,8 +6,6 @@ pub const ParseError = error{
NoCommandGiven,
UnknownCommand,
ArgRequired,
FloatParseFail,
ParseFail,
};
pub const CommandType = enum {
@ -234,64 +232,10 @@ pub const Lang = struct {
return null;
}
fn expectAny(self: *Lang, count: usize, args: ArgList) !void {
if (args.len != count) {
std.debug.warn("expected {} arguments, found {}\n", count, args.len);
return error.ArgRequired;
}
}
fn expectSingle(self: *Lang, args: ArgList) !void {
return try self.expectAny(1, args);
}
fn expectFloat(self: *Lang, count: usize, args: ArgList) !void {
var i: usize = 0;
if (args.len != count) {
std.debug.warn("expected {} arguments, found {}\n", count, args.len);
return error.ArgRequired;
}
while (i < count) : (i += 1) {
var arg = args.at(i);
_ = std.fmt.parseFloat(f32, arg) catch |err| {
std.debug.warn("failed to parse f32: {}\n", err);
return error.FloatParseFail;
};
}
}
fn validateCommand(self: *Lang, cmd: *Command) !void {
switch (cmd.command) {
.Quicksave, .Noop => {},
.Load, .RunQS => try self.expectSingle(cmd.args),
.Amp => try self.expectFloat(3, cmd.args),
.RFlanger => try self.expectFloat(4, cmd.args),
.Eq => try self.expectFloat(5, cmd.args),
.Phaser => try self.expectFloat(6, cmd.args),
.Mbeq => try self.expectFloat(15, cmd.args),
.Chorus => try self.expectFloat(8, cmd.args),
.PitchScaler => try self.expectFloat(3, cmd.args),
.Reverb => try self.expectFloat(12, cmd.args),
.Highpass => try self.expectFloat(5, cmd.args),
.Delay => try self.expectFloat(12, cmd.args),
.Vinyl => try self.expectFloat(7, cmd.args),
.RevDelay => try self.expectFloat(5, cmd.args),
.Noise => try self.expectFloat(4, cmd.args),
.WildNoise => try self.expectFloat(4, cmd.args),
.Write => try self.expectFloat(3, cmd.args),
.Rotate => try self.expectAny(2, cmd.args),
else => std.debug.warn("WARN unchecked command {}\n", cmd.command),
}
}
pub fn parse(self: *Lang, data: []const u8) !CommandList {
var splitted_it = std.mem.separate(data, ";");
try self.fillKeywords();
var cmds = CommandList.init(self.allocator);
var idx: usize = 0;
while (splitted_it.next()) |stmt_orig| {
var stmt = std.mem.trimRight(u8, stmt_orig, "\n");
@ -317,22 +261,15 @@ pub const Lang = struct {
}
var args = ArgList.init(self.allocator);
while (tok_it.next()) |arg| {
try args.append(arg);
}
// construct final Command based on command
var cmd_ptr = try self.allocator.create(Command);
errdefer self.allocator.destroy(cmd_ptr);
cmd_ptr.* = Command{ .command = ctype, .args = args };
self.validateCommand(cmd_ptr) catch |err| {
std.debug.warn("error at line {}: {}\n", idx, err);
return ParseError.ParseFail;
};
try cmds.append(cmd_ptr);
idx += 1;
}
return cmds;