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-rw-r--r--source/LuaExpat/lxplib.c599
1 files changed, 0 insertions, 599 deletions
diff --git a/source/LuaExpat/lxplib.c b/source/LuaExpat/lxplib.c
deleted file mode 100644
index e26343ce9..000000000
--- a/source/LuaExpat/lxplib.c
+++ /dev/null
@@ -1,599 +0,0 @@
-/*
-** $Id: lxplib.c,v 1.16 2007/06/05 20:03:12 carregal Exp $
-** LuaExpat: Lua bind for Expat library
-** See Copyright Notice in license.html
-*/
-
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "expat.h"
-
-#include "lua.h"
-#include "lauxlib.h"
-
-
-#include "lxplib.h"
-
-
-#if !defined(lua_pushliteral)
-#define lua_pushliteral(L, s) \
- lua_pushstring(L, "" s, (sizeof(s)/sizeof(char))-1)
-#endif
-
-
-enum XPState {
- XPSpre, /* parser just initialized */
- XPSok, /* state while parsing */
- XPSfinished, /* state after finished parsing */
- XPSerror,
- XPSstring /* state while reading a string */
-};
-
-struct lxp_userdata {
- lua_State *L;
- XML_Parser parser; /* associated expat parser */
- int tableref; /* table with callbacks for this parser */
- enum XPState state;
- luaL_Buffer *b; /* to concatenate sequences of cdata pieces */
-};
-
-typedef struct lxp_userdata lxp_userdata;
-
-
-static int reporterror (lxp_userdata *xpu) {
- lua_State *L = xpu->L;
- XML_Parser p = xpu->parser;
- lua_pushnil(L);
- lua_pushstring(L, XML_ErrorString(XML_GetErrorCode(p)));
- lua_pushnumber(L, XML_GetCurrentLineNumber(p));
- lua_pushnumber(L, XML_GetCurrentColumnNumber(p) + 1);
- lua_pushnumber(L, XML_GetCurrentByteIndex(p) + 1);
- return 5;
-}
-
-
-static lxp_userdata *createlxp (lua_State *L) {
- lxp_userdata *xpu = (lxp_userdata *)lua_newuserdata(L, sizeof(lxp_userdata));
- xpu->tableref = LUA_REFNIL; /* in case of errors... */
- xpu->parser = NULL;
- xpu->L = NULL;
- xpu->state = XPSpre;
- luaL_getmetatable(L, ParserType);
- lua_setmetatable(L, -2);
- return xpu;
-}
-
-
-static void lxpclose (lua_State *L, lxp_userdata *xpu) {
- luaL_unref(L, LUA_REGISTRYINDEX, xpu->tableref);
- xpu->tableref = LUA_REFNIL;
- if (xpu->parser)
- XML_ParserFree(xpu->parser);
- xpu->parser = NULL;
-}
-
-
-
-
-/*
-** Auxiliary function to call a Lua handle
-*/
-static void docall (lxp_userdata *xpu, int nargs, int nres) {
- lua_State *L = xpu->L;
- assert(xpu->state == XPSok);
- if (lua_pcall(L, nargs + 1, nres, 0) != 0) {
- xpu->state = XPSerror;
- luaL_unref(L, LUA_REGISTRYINDEX, xpu->tableref);
- xpu->tableref = luaL_ref(L, LUA_REGISTRYINDEX); /* error message */
- }
-}
-
-
-/*
-** Check whether there is pending Cdata, and call its handle if necessary
-*/
-static void dischargestring (lxp_userdata *xpu) {
- assert(xpu->state == XPSstring);
- xpu->state = XPSok;
- luaL_pushresult(xpu->b);
- docall(xpu, 1, 0);
-}
-
-
-/*
-** Check whether there is a Lua handle for a given event: If so,
-** put it on the stack (to be called later), and also push `self'
-*/
-static int getHandle (lxp_userdata *xpu, const char *handle) {
- lua_State *L = xpu->L;
- if (xpu->state == XPSstring) dischargestring(xpu);
- if (xpu->state == XPSerror)
- return 0; /* some error happened before; skip all handles */
- lua_pushstring(L, handle);
- lua_gettable(L, 3);
- if (lua_toboolean(L, -1) == 0) {
- lua_pop(L, 1);
- return 0;
- }
- if (!lua_isfunction(L, -1)) {
- luaL_error(L, "lxp `%s' callback is not a function", handle);
- }
- lua_pushvalue(L, 1); /* first argument in every call (self) */
- return 1;
-}
-
-
-
-/*
-** {======================================================
-** Handles
-** =======================================================
-*/
-
-
-static void f_StartCdata (void *ud) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (getHandle(xpu, StartCdataKey) == 0) return; /* no handle */
- docall(xpu, 0, 0);
-}
-
-
-static void f_EndCdataKey (void *ud) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (getHandle(xpu, EndCdataKey) == 0) return; /* no handle */
- docall(xpu, 0, 0);
-}
-
-
-static void f_CharData (void *ud, const char *s, int len) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (xpu->state == XPSok) {
- if (getHandle(xpu, CharDataKey) == 0) return; /* no handle */
- xpu->state = XPSstring;
- luaL_buffinit(xpu->L, xpu->b);
- }
- if (xpu->state == XPSstring)
- luaL_addlstring(xpu->b, s, len);
-}
-
-
-static void f_Comment (void *ud, const char *data) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (getHandle(xpu, CommentKey) == 0) return; /* no handle */
- lua_pushstring(xpu->L, data);
- docall(xpu, 1, 0);
-}
-
-
-static void f_Default (void *ud, const char *data, int len) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (getHandle(xpu, DefaultKey) == 0) return; /* no handle */
- lua_pushlstring(xpu->L, data, len);
- docall(xpu, 1, 0);
-}
-
-
-static void f_DefaultExpand (void *ud, const char *data, int len) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (getHandle(xpu, DefaultExpandKey) == 0) return; /* no handle */
- lua_pushlstring(xpu->L, data, len);
- docall(xpu, 1, 0);
-}
-
-
-static void f_StartElement (void *ud, const char *name, const char **attrs) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- lua_State *L = xpu->L;
- int lastspec = XML_GetSpecifiedAttributeCount(xpu->parser) / 2;
- int i = 1;
- if (getHandle(xpu, StartElementKey) == 0) return; /* no handle */
- lua_pushstring(L, name);
- lua_newtable(L);
- while (*attrs) {
- if (i <= lastspec) {
- lua_pushnumber(L, i++);
- lua_pushstring(L, *attrs);
- lua_settable(L, -3);
- }
- lua_pushstring(L, *attrs++);
- lua_pushstring(L, *attrs++);
- lua_settable(L, -3);
- }
- docall(xpu, 2, 0); /* call function with self, name, and attributes */
-}
-
-
-static void f_EndElement (void *ud, const char *name) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (getHandle(xpu, EndElementKey) == 0) return; /* no handle */
- lua_pushstring(xpu->L, name);
- docall(xpu, 1, 0);
-}
-
-
-static int f_ExternaEntity (XML_Parser p, const char *context,
- const char *base,
- const char *systemId,
- const char *publicId) {
- lxp_userdata *xpu = (lxp_userdata *)XML_GetUserData(p);
- lua_State *L = xpu->L;
- lxp_userdata *child;
- int status;
- if (getHandle(xpu, ExternalEntityKey) == 0) return 1; /* no handle */
- child = createlxp(L);
- child->parser = XML_ExternalEntityParserCreate(p, context, NULL);
- if (!child->parser)
- luaL_error(L, "XML_ParserCreate failed");
- lua_rawgeti(L, LUA_REGISTRYINDEX, xpu->tableref); /*lua_getref(L, xpu->tableref); */ /* child uses the same table of its father */
- child->tableref = luaL_ref(L, LUA_REGISTRYINDEX);
- lua_pushstring(L, base);
- lua_pushstring(L, systemId);
- lua_pushstring(L, publicId);
- docall(xpu, 4, 1);
- status = lua_toboolean(L, -1);
- lua_pop(L, 1);
- lxpclose(L, child);
- return status;
-}
-
-
-static void f_StartNamespaceDecl (void *ud, const char *prefix,
- const char *uri) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- lua_State *L = xpu->L;
- if (getHandle(xpu, StartNamespaceDeclKey) == 0) return; /* no handle */
- lua_pushstring(L, prefix);
- lua_pushstring(L, uri);
- docall(xpu, 2, 0);
-}
-
-
-static void f_EndNamespaceDecl (void *ud, const char *prefix) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (getHandle(xpu, EndNamespaceDeclKey) == 0) return; /* no handle */
- lua_pushstring(xpu->L, prefix);
- docall(xpu, 1, 0);
-}
-
-
-static void f_NotationDecl (void *ud, const char *notationName,
- const char *base,
- const char *systemId,
- const char *publicId) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- lua_State *L = xpu->L;
- if (getHandle(xpu, NotationDeclKey) == 0) return; /* no handle */
- lua_pushstring(L, notationName);
- lua_pushstring(L, base);
- lua_pushstring(L, systemId);
- lua_pushstring(L, publicId);
- docall(xpu, 4, 0);
-}
-
-
-static int f_NotStandalone (void *ud) {
- int status;
- lxp_userdata *xpu = (lxp_userdata *)ud;
- lua_State *L = xpu->L;
- if (getHandle(xpu, NotStandaloneKey) == 0) return 1; /* no handle */
- docall(xpu, 0, 1);
- status = lua_toboolean(L, -1);
- lua_pop(L, 1);
- return status;
-}
-
-
-static void f_ProcessingInstruction (void *ud, const char *target,
- const char *data) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- lua_State *L = xpu->L;
- if (getHandle(xpu, ProcessingInstructionKey) == 0) return; /* no handle */
- lua_pushstring(L, target);
- lua_pushstring(L, data);
- docall(xpu, 2, 0);
-}
-
-
-static void f_UnparsedEntityDecl (void *ud, const char *entityName,
- const char *base,
- const char *systemId,
- const char *publicId,
- const char *notationName) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- lua_State *L = xpu->L;
- if (getHandle(xpu, UnparsedEntityDeclKey) == 0) return; /* no handle */
- lua_pushstring(L, entityName);
- lua_pushstring(L, base);
- lua_pushstring(L, systemId);
- lua_pushstring(L, publicId);
- lua_pushstring(L, notationName);
- docall(xpu, 5, 0);
-}
-
-static void f_StartDoctypeDecl (void *ud, const XML_Char *doctypeName,
- const XML_Char *sysid,
- const XML_Char *pubid,
- int has_internal_subset) {
- lxp_userdata *xpu = (lxp_userdata *)ud;
- if (getHandle(xpu, StartDoctypeDeclKey) == 0) return; /* no handle */
- lua_pushstring(xpu->L, doctypeName);
- lua_pushstring(xpu->L, sysid);
- lua_pushstring(xpu->L, pubid);
- lua_pushboolean(xpu->L, has_internal_subset);
- docall(xpu, 4, 0);
-}
-
-/* }====================================================== */
-
-
-
-static int hasfield (lua_State *L, const char *fname) {
- int res;
- lua_pushstring(L, fname);
- lua_gettable(L, 1);
- res = !lua_isnil(L, -1);
- lua_pop(L, 1);
- return res;
-}
-
-
-static void checkcallbacks (lua_State *L) {
- static const char *const validkeys[] = {
- "StartCdataSection", "EndCdataSection", "CharacterData", "Comment",
- "Default", "DefaultExpand", "StartElement", "EndElement",
- "ExternalEntityRef", "StartNamespaceDecl", "EndNamespaceDecl",
- "NotationDecl", "NotStandalone", "ProcessingInstruction",
- "UnparsedEntityDecl", "StartDoctypeDecl", NULL};
- if (hasfield(L, "_nonstrict")) return;
- lua_pushnil(L);
- while (lua_next(L, 1)) {
- lua_pop(L, 1); /* remove value */
-#if ! defined (LUA_VERSION_NUM) || LUA_VERSION_NUM < 501
- if (lua_type(L, -1) != LUA_TSTRING ||
- luaL_findstring(lua_tostring(L, -1), validkeys) < 0)
- luaL_error(L, "invalid key `%s' in callback table", lua_tostring(L, -1));
-#else
- luaL_checkoption(L, -1, NULL, validkeys);
-#endif
- }
-}
-
-
-static int lxp_make_parser (lua_State *L) {
- XML_Parser p;
- char sep = *luaL_optstring(L, 2, "");
- lxp_userdata *xpu = createlxp(L);
- p = xpu->parser = (sep == '\0') ? XML_ParserCreate(NULL) :
- XML_ParserCreateNS(NULL, sep);
- if (!p)
- luaL_error(L, "XML_ParserCreate failed");
- luaL_checktype(L, 1, LUA_TTABLE);
- checkcallbacks(L);
- lua_pushvalue(L, 1);
- xpu->tableref = luaL_ref(L, LUA_REGISTRYINDEX);
- XML_SetUserData(p, xpu);
- if (hasfield(L, StartCdataKey) || hasfield(L, EndCdataKey))
- XML_SetCdataSectionHandler(p, f_StartCdata, f_EndCdataKey);
- if (hasfield(L, CharDataKey))
- XML_SetCharacterDataHandler(p, f_CharData);
- if (hasfield(L, CommentKey))
- XML_SetCommentHandler(p, f_Comment);
- if (hasfield(L, DefaultKey))
- XML_SetDefaultHandler(p, f_Default);
- if (hasfield(L, DefaultExpandKey))
- XML_SetDefaultHandlerExpand(p, f_DefaultExpand);
- if (hasfield(L, StartElementKey) || hasfield(L, EndElementKey))
- XML_SetElementHandler(p, f_StartElement, f_EndElement);
- if (hasfield(L, ExternalEntityKey))
- XML_SetExternalEntityRefHandler(p, f_ExternaEntity);
- if (hasfield(L, StartNamespaceDeclKey) || hasfield(L, EndNamespaceDeclKey))
- XML_SetNamespaceDeclHandler(p, f_StartNamespaceDecl, f_EndNamespaceDecl);
- if (hasfield(L, NotationDeclKey))
- XML_SetNotationDeclHandler(p, f_NotationDecl);
- if (hasfield(L, NotStandaloneKey))
- XML_SetNotStandaloneHandler(p, f_NotStandalone);
- if (hasfield(L, ProcessingInstructionKey))
- XML_SetProcessingInstructionHandler(p, f_ProcessingInstruction);
- if (hasfield(L, UnparsedEntityDeclKey))
- XML_SetUnparsedEntityDeclHandler(p, f_UnparsedEntityDecl);
- if (hasfield(L, StartDoctypeDeclKey))
- XML_SetStartDoctypeDeclHandler(p, f_StartDoctypeDecl);
- return 1;
-}
-
-
-static lxp_userdata *checkparser (lua_State *L, int idx) {
- lxp_userdata *xpu = (lxp_userdata *)luaL_checkudata(L, idx, ParserType);
- luaL_argcheck(L, xpu, idx, "expat parser expected");
- luaL_argcheck(L, xpu->parser, idx, "parser is closed");
- return xpu;
-}
-
-
-static int parser_gc (lua_State *L) {
- lxp_userdata *xpu = (lxp_userdata *)luaL_checkudata(L, 1, ParserType);
- luaL_argcheck(L, xpu, 1, "expat parser expected");
- lxpclose(L, xpu);
- return 0;
-}
-
-
-static int setbase (lua_State *L) {
- lxp_userdata *xpu = checkparser(L, 1);
- if (XML_SetBase(xpu->parser, luaL_checkstring(L, 2)) == 0)
- luaL_error(L, "no memory to store base");
- return 0;
-}
-
-
-static int getbase (lua_State *L) {
- lxp_userdata *xpu = checkparser(L, 1);
- lua_pushstring(L, XML_GetBase(xpu->parser));
- return 1;
-}
-
-
-static int getcallbacks (lua_State *L) {
- lxp_userdata *xpu = checkparser(L, 1);
- lua_rawgeti(L, LUA_REGISTRYINDEX, xpu->tableref);
- return 1;
-}
-
-
-static int parse_aux (lua_State *L, lxp_userdata *xpu, const char *s,
- size_t len) {
- luaL_Buffer b;
- int status;
- xpu->L = L;
- xpu->state = XPSok;
- xpu->b = &b;
- lua_settop(L, 2);
- lua_rawgeti(L, LUA_REGISTRYINDEX, xpu->tableref); /*lua_getref(L, xpu->tableref);*/ /* to be used by handlers */
- status = XML_Parse(xpu->parser, s, (int)len, s == NULL);
- if (xpu->state == XPSstring) dischargestring(xpu);
- if (xpu->state == XPSerror) { /* callback error? */
- lua_rawgeti(L, LUA_REGISTRYINDEX, xpu->tableref); /* get original msg. */
- lua_error(L);
- }
- if (s == NULL) xpu->state = XPSfinished;
- if (status) {
- lua_pushboolean(L, 1);
- return 1;
- }
- else { /* error */
- return reporterror(xpu);
- }
-}
-
-
-static int lxp_parse (lua_State *L) {
- lxp_userdata *xpu = checkparser(L, 1);
- size_t len;
- const char *s = luaL_optlstring(L, 2, NULL, &len);
- if (xpu->state == XPSfinished && s != NULL) {
- lua_pushnil(L);
- lua_pushliteral(L, "cannot parse - document is finished");
- return 2;
- }
- return parse_aux(L, xpu, s, len);
-}
-
-
-static int lxp_close (lua_State *L) {
- int status = 1;
- lxp_userdata *xpu = (lxp_userdata *)luaL_checkudata(L, 1, ParserType);
- luaL_argcheck(L, xpu, 1, "expat parser expected");
- if (xpu->state != XPSfinished)
- status = parse_aux(L, xpu, NULL, 0);
- lxpclose(L, xpu);
- if (status > 1) luaL_error(L, "error closing parser: %s",
- lua_tostring(L, -status+1));
- return 0;
-}
-
-
-static int lxp_pos (lua_State *L) {
- lxp_userdata *xpu = checkparser(L, 1);
- XML_Parser p = xpu->parser;
- lua_pushnumber(L, XML_GetCurrentLineNumber(p));
- lua_pushnumber(L, XML_GetCurrentColumnNumber(p) + 1);
- lua_pushnumber(L, XML_GetCurrentByteIndex(p) + 1);
- return 3;
-}
-
-
-static int lxp_setencoding (lua_State *L) {
- lxp_userdata *xpu = checkparser(L, 1);
- const char *encoding = luaL_checkstring(L, 2);
- luaL_argcheck(L, xpu->state == XPSpre, 1, "invalid parser state");
- XML_SetEncoding(xpu->parser, encoding);
- return 0;
-}
-
-static int lxp_stop (lua_State *L) {
- lxp_userdata *xpu = checkparser(L, 1);
- lua_pushboolean(L, XML_StopParser(xpu->parser, XML_FALSE) == XML_STATUS_OK);
- return 1;
-}
-
-#if !defined LUA_VERSION_NUM
-/* Lua 5.0 */
-#define luaL_Reg luaL_reg
-#endif
-
-static const struct luaL_Reg lxp_meths[] = {
- {"parse", lxp_parse},
- {"close", lxp_close},
- {"__gc", parser_gc},
- {"pos", lxp_pos},
- {"setencoding", lxp_setencoding},
- {"getcallbacks", getcallbacks},
- {"getbase", getbase},
- {"setbase", setbase},
- {"stop", lxp_stop},
- {NULL, NULL}
-};
-
-static const struct luaL_Reg lxp_funcs[] = {
- {"new", lxp_make_parser},
- {NULL, NULL}
-};
-
-
-/*
-** Assumes the table is on top of the stack.
-*/
-static void set_info (lua_State *L) {
- lua_pushliteral (L, "_COPYRIGHT");
- lua_pushliteral (L, "Copyright (C) 2003-2012 Kepler Project");
- lua_settable (L, -3);
- lua_pushliteral (L, "_DESCRIPTION");
- lua_pushliteral (L, "LuaExpat is a SAX XML parser based on the Expat library");
- lua_settable (L, -3);
- lua_pushliteral (L, "_VERSION");
- lua_pushliteral (L, "LuaExpat 1.3.0");
- lua_settable (L, -3);
-}
-
-
-#if !defined LUA_VERSION_NUM || LUA_VERSION_NUM==501
-/*
-** Adapted from Lua 5.2.0
-*/
-static void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) {
- luaL_checkstack(L, nup, "too many upvalues");
- for (; l->name != NULL; l++) { /* fill the table with given functions */
- int i;
- for (i = 0; i < nup; i++) /* copy upvalues to the top */
- lua_pushvalue(L, -nup);
- lua_pushstring(L, l->name);
- lua_pushcclosure(L, l->func, nup); /* closure with those upvalues */
- lua_settable(L, -(nup + 3));
- }
- lua_pop(L, nup); /* remove upvalues */
-}
-#endif
-
-
-int luaopen_lxp (lua_State *L) {
- luaL_newmetatable(L, ParserType);
-
- lua_pushliteral(L, "__index");
- lua_pushvalue(L, -2);
- lua_rawset(L, -3);
-
- luaL_setfuncs (L, lxp_meths, 0);
- lua_pop (L, 1); /* remove metatable */
-
- // _X 2013_04_09: Modified to allow embedding
- luaL_openlib (L, "lxp", lxp_funcs, 0);
- /*
- lua_newtable (L);
- luaL_setfuncs (L, lxp_funcs, 0);
- */
- set_info (L);
- return 1;
-}