Lobo Torres
04efdcac8e
replaces the old character literal syntax that i really didn't like and feels more scheme-ish
32 lines
921 B
Hare
32 lines
921 B
Hare
use io;
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use fmt;
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export type invalid = !(uint, uint);
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export type unterminated = !(const str, uint, uint);
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export type error = !(invalid | unterminated | io::error);
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export type quotstart = void;
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export type quotend = void;
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export type mapstart = void;
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export type mapend = void;
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export type comment = struct { v: str };
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export type word = struct { v: str };
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export type symbol = struct { v: str, kw: bool };
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export type token = (quotstart | quotend | mapstart | mapend |
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word | symbol | comment | str | rune | bool);
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export fn strerror(err: error) const str = {
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static let buf: [64]u8 = [0...];
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match (err) {
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case let err: invalid =>
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return fmt::bsprintf(buf,
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"{}:{}: Invalid token found", err.0, err.1);
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case let err: unterminated =>
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return fmt::bsprintf(buf,
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"{}:{}: Unterminated {} found", err.1, err.2, err.0);
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case let err: io::error =>
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return io::strerror(err);
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};
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};
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