add basic lang parse code
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6e8ee7831a
commit
4bbe980014
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@ -0,0 +1,43 @@
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const std = @import("std");
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pub const CommandType = enum {
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Noop,
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Load,
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Amp,
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Quicksave,
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};
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pub const Command = struct {
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command: CommandType,
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args: []const u8,
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pub fn print(self: *const Command) void {
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std.debug.warn("cmd:{} args:{}\n", self.command, self.args);
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}
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};
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pub const CommandList = std.ArrayList(Command);
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pub const Lang = struct {
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allocator: *std.mem.Allocator,
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pub fn init(allocator: *std.mem.Allocator) Lang {
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return Lang{ .allocator = allocator };
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}
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pub fn parse(self: *Lang, data: []const u8) CommandList {
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var splitted_it = std.mem.separate(data, ";");
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var cmds = CommandList.init(self.allocator);
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while (splitted_it.next()) |stmt_orig| {
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var stmt = std.mem.trimRight(u8, stmt_orig, "\n");
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if (stmt.len == 0) continue;
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// TODO parse stmt
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std.debug.warn("full cmd: '{}'\n", stmt);
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}
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return cmds;
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}
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};
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32
src/main.zig
32
src/main.zig
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@ -16,6 +16,7 @@
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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const std = @import("std");
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const langs = @import("lang.zig");
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const c = @cImport({
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@cInclude("assert.h");
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@ -302,6 +303,37 @@ pub fn main() !void {
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var arena = std.heap.ArenaAllocator.init(std.heap.c_allocator);
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const allocator = &arena.allocator;
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var lang = langs.Lang.init(allocator);
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//defer lang.deinit();
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var args_it = std.process.args();
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const exe_name = try (args_it.next(allocator) orelse @panic("expected exe name"));
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// args[1] is the path to scri file
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const scri_path = try (args_it.next(allocator) orelse @panic("expected scri path"));
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std.debug.warn("path: '{}'\n", scri_path);
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var file = try std.fs.File.openRead(scri_path);
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defer file.close();
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// sadly, we read it all into memory. such is life
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const total_bytes = try file.getEndPos();
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var data = try allocator.alloc(u8, total_bytes);
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_ = try file.read(data);
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var cmds = lang.parse(data);
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var it = cmds.iterator();
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while (it.next()) |cmd| {
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cmd.print();
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}
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}
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pub fn oldMain() !void {
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var arena = std.heap.ArenaAllocator.init(std.heap.c_allocator);
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const allocator = &arena.allocator;
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var in_path: ?[]u8 = null;
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var out_path: ?[]u8 = null;
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