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/*
* Copyright 2001-2007 Adrian Thurston <thurston@colm.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _XMLPARSE_H
#define _XMLPARSE_H
#include "vector.h"
#include "gendata.h"
#include "buffer.h"
#include <iostream>
using std::istream;
using std::ostream;
#define XML_BUFSIZE 4096
struct AttrMarker
{
char *id;
int idLen;
char *value;
int valueLen;
};
struct Attribute
{
char *id;
char *value;
};
typedef Vector<AttrMarker> AttrMkList;
typedef Vector<Attribute> AttrList;
struct XMLTagHashPair;
struct XMLTag
{
enum TagType { Open, Close };
XMLTag( XMLTagHashPair *tagId, TagType type ) :
tagId(tagId), type(type),
content(0), attrList(0) {}
Attribute *findAttr( const char *id )
{
if ( attrList != 0 ) {
for ( AttrList::Iter attr = *attrList; attr.lte(); attr++ ) {
if ( strcmp( id, attr->id ) == 0 )
return attr;
}
}
return 0;
}
XMLTagHashPair *tagId;
TagType type;
/* Content is associtated with closing tags. */
char *content;
/* Attribute lists are associated with opening tags. */
AttrList *attrList;
};
struct XMLTagHashPair
{
const char *name;
int id;
};
struct Token;
struct GenInlineItem;
struct GenInlineList;
struct LmSwitchVect;
struct LmSwitchAction;
struct XmlScanner
{
XmlScanner( const char *fileName, istream &input );
int scan();
void adjustAttrPointers( int distance );
std::ostream &error();
const char *fileName;
istream &input;
/* Scanner State. */
int cs, act, have, curline, curcol;
char *ts, *te;
char *p, *pe;
int done;
/* Token data */
char *data;
int data_len;
int value;
AttrMkList attrMkList;
Buffer buffer;
char *tag_id_start;
int tag_id_len;
int token_col, token_line;
char buf[XML_BUFSIZE];
};
struct XmlParser
{
%%{
parser XmlParser;
token TAG_unknown, TAG_ragel, TAG_ragel_def, TAG_host, TAG_state_list,
TAG_state, TAG_trans_list, TAG_t, TAG_machine, TAG_start_state,
TAG_error_state, TAG_action_list, TAG_action_table_list,
TAG_action, TAG_action_table, TAG_alphtype, TAG_element,
TAG_getkey, TAG_state_actions, TAG_entry_points, TAG_sub_action,
TAG_cond_space_list, TAG_cond_space, TAG_cond_list, TAG_c,
TAG_exports, TAG_ex;
# Inline block tokens.
token TAG_text, TAG_goto, TAG_call, TAG_next, TAG_goto_expr,
TAG_call_expr, TAG_next_expr, TAG_ret, TAG_pchar, TAG_char,
TAG_hold, TAG_exec, TAG_curs, TAG_targs, TAG_entry, TAG_data,
TAG_lm_switch, TAG_init_act, TAG_set_act, TAG_set_tokend,
TAG_get_tokend, TAG_init_tokstart, TAG_set_tokstart;
token TAG_write, TAG_access, TAG_break, TAG_arg, TAG_cs_expr;
token TAG_p_expr, TAG_pe_expr, TAG_eof_expr, TAG_cs_expr, TAG_top_expr,
TAG_stack_expr, TAG_act_expr, TAG_tokstart_expr, TAG_tokend_expr,
TAG_data_expr, TAG_prepush, TAG_postpop, TAG_eof_t;
}%%
%% write instance_data;
void init();
int parseLangEl( int type, const Token *token );
XmlParser( const char *sourceFileName, const char *xmlFileName, bool outputActive, bool wantComplete ) :
sourceFileName(sourceFileName),
fileName(xmlFileName),
outStream(0),
outputActive(outputActive),
wantComplete(wantComplete),
cgd(0) { }
int token( int tokenId, Token &token );
int token( int tokenId, int col, int line );
int token( XMLTag *tag, int col, int line );
void openOutput();
/* Report an error encountered by the parser. */
ostream &warning( const InputLoc &loc );
ostream &error();
ostream &error( const InputLoc &loc );
ostream &parser_error( int tokId, Token &token );
ostream &source_error( const InputLoc &loc );
/* The name of the root section, this does not change during an include. */
const char *sourceFileName;
const char *fileName;
ostream *outStream;
bool outputActive;
bool wantComplete;
/* Collected during parsing. */
char *attrKey;
char *attrValue;
int curAction;
int curActionTable;
int curTrans;
int curState;
int curCondSpace;
int curStateCond;
CodeGenData *cgd;
CodeGenMap codeGenMap;
Vector <char*> writeOptions;
};
%% write token_defs;
int xml_parse( std::istream &input, const char *fileName,
bool outputActive, bool wantComplete,
XmlScanner &scanner, XmlParser &parser );
#endif
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