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Trim down redbean a little bit

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This makes redbean.c a little less long. It also reduces the size of
redbean-original.com from being 333K to 213K.
This commit is contained in:
Justine Tunney 2022-03-21 19:31:03 -07:00
parent 87029ac3f9
commit 5022f9e920
21 changed files with 999 additions and 669 deletions
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85
third_party/lua/luaencodejsondata.c vendored 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 "libc/runtime/gc.internal.h"
#include "libc/stdio/append.internal.h"
#include "net/http/escape.h"
#include "third_party/lua/cosmo.h"
#include "third_party/lua/lauxlib.h"
#include "third_party/lua/lua.h"
int LuaEncodeJsonData(lua_State *L, char **buf, int level, char *numformat) {
size_t idx = -1;
size_t tbllen, buflen;
bool isarray;
int t = lua_type(L, idx);
if (level < 0) return luaL_argerror(L, 1, "too many nested tables");
if (LUA_TSTRING == t) {
appendw(buf, '"');
appends(buf, gc(EscapeJsStringLiteral(lua_tostring(L, idx), -1, 0)));
appendw(buf, '"');
} else if (LUA_TNUMBER == t) {
appendf(buf, numformat, lua_tonumber(L, idx));
} else if (LUA_TBOOLEAN == t) {
appends(buf, lua_toboolean(L, idx) ? "true" : "false");
} else if (LUA_TTABLE == t) {
tbllen = lua_rawlen(L, idx);
// encode tables with numeric indices and empty tables as arrays
isarray = tbllen > 0 || // integer keys present
(lua_pushnil(L), lua_next(L, -2) == 0) || // no non-integer keys
(lua_pop(L, 2), false); // pop key/value pushed by lua_next
appendw(buf, isarray ? '[' : '{');
if (isarray) {
for (int i = 1; i <= tbllen; i++) {
if (i > 1) appendw(buf, ',');
lua_rawgeti(L, -1, i); // table/-2, value/-1
LuaEncodeJsonData(L, buf, level - 1, numformat);
lua_pop(L, 1);
}
} else {
int i = 1;
lua_pushnil(L); // push the first key
while (lua_next(L, -2) != 0) {
if (!lua_isstring(L, -2))
return luaL_argerror(L, 1, "expected number or string as key value");
if (i++ > 1) appendw(buf, ',');
appendw(buf, '"');
if (lua_type(L, -2) == LUA_TSTRING) {
appends(buf, gc(EscapeJsStringLiteral(lua_tostring(L, -2), -1, 0)));
} else {
// we'd still prefer to use lua_tostring on a numeric index, but can't
// use it in-place, as it breaks lua_next (changes numeric key to a
// string)
lua_pushvalue(L, -2); // table/-4, key/-3, value/-2, key/-1
appends(buf, lua_tostring(L, idx)); // use the copy
lua_remove(L, -1); // remove copied key: table/-3, key/-2, value/-1
}
appendw(buf, '"' | ':' << 010);
LuaEncodeJsonData(L, buf, level - 1, numformat);
lua_pop(L, 1); // table/-2, key/-1
}
// stack: table/-1, as the key was popped by lua_next
}
appendw(buf, isarray ? ']' : '}');
} else if (LUA_TNIL == t) {
appendd(buf, "null", 4);
} else {
return luaL_argerror(L, 1, "can't serialize value of this type");
}
return 0;
}