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Add LISP interpreter

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Justine Tunney 2022-04-07 20:30:22 -07:00
parent 4f98ad1054
commit d31bebdd2d
84 changed files with 9081 additions and 0 deletions
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tool/plinko/lib/char.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "tool/plinko/lib/char.h"
pureconst bool IsHex(int c) {
return ((L'0' <= c && c <= L'9') || (L'A' <= c && c <= L'F') ||
(L'a' <= c && c <= L'f'));
}
pureconst int GetDiglet(int c) {
if (IsDigit(c)) return c - L'0';
if (IsUpper(c)) return c - L'A' + 10;
if (IsLower(c)) return c - L'a' + 10;
return -1;
}
pureconst bool IsSpace(int c) {
switch (c) {
case L' ':
case L'\t':
case L'\n':
case L'\f':
case L'\v':
case L'\r':
return true;
default:
return false;
}
}
pureconst bool IsParen(int c) {
switch (c) {
case L'(':
case L')':
case L'[':
case L']':
case L'{':
case L'}':
return true;
default:
return false;
}
}