mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2025-12-09 09:03:33 +00:00
a6b4c0df5f
* Merged version 2.1 of GoAhead webserver. This update was submitted by Antti P Miettinen <antti.p.miettinen@nokia.com>. * NOTES, base64.c, ejIntrn.h, emfdb.c, emfdb.h, md5.h, md5c.c, um.c, um.h: New files. * wbase64.c: Removed. * Makefile.am, asp.c, balloc.c, default.c, ej.h, ejlex.c, ejparse.c, form.c, h.c, handler.c, mime.c, misc.c, ringq.c, rom.c, security.c, socket.c, sym.c, uemf.c, uemf.h, url.c, value.c, webcomp.c, webmain.c, webpage.c, webrom.c, webs.c, webs.h, websuemf.c, wsIntrn.h: Modified.
229 lines
7.0 KiB
C
229 lines
7.0 KiB
C
/*
|
|
* ejIntrn.h -- Ejscript(TM) header
|
|
*
|
|
* Copyright (c) GoAhead Software, Inc., 1992-2000
|
|
*
|
|
* See the file "license.txt" for information on usage and redistribution
|
|
*/
|
|
|
|
#ifndef _h_EJINTERNAL
|
|
#define _h_EJINTERNAL 1
|
|
|
|
/******************************** Description *********************************/
|
|
|
|
/*
|
|
* GoAhead Ejscript(TM) header. This defines the Ejscript API and internal
|
|
* structures.
|
|
*/
|
|
|
|
/********************************* Includes ***********************************/
|
|
|
|
#include <ctype.h>
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
|
|
#if CE
|
|
#if ! UEMF
|
|
#include <io.h>
|
|
#endif
|
|
#endif
|
|
|
|
#if LYNX
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#ifdef QNX4
|
|
#include <dirent.h>
|
|
#endif
|
|
|
|
#if UEMF
|
|
#include "uemf.h"
|
|
#else
|
|
#include <param.h>
|
|
#include <stat.h>
|
|
#include "basic/basicInternal.h"
|
|
#include "emf/emfInternal.h"
|
|
#endif
|
|
|
|
#include "ej.h"
|
|
|
|
/********************************** Defines ***********************************/
|
|
/*
|
|
* Constants
|
|
*/
|
|
#define EJ_INC 110 /* Growth for tags/tokens */
|
|
#define EJ_SCRIPT_INC 1023 /* Growth for ej scripts */
|
|
#define EJ_OFFSET 1 /* hAlloc doesn't like 0 entries */
|
|
#define EJ_MAX_RECURSE 100 /* Sanity for maximum recursion */
|
|
|
|
/*
|
|
* Ejscript Lexical analyser tokens
|
|
*/
|
|
#define TOK_ERR -1 /* Any error */
|
|
#define TOK_LPAREN 1 /* ( */
|
|
#define TOK_RPAREN 2 /* ) */
|
|
#define TOK_IF 3 /* if */
|
|
#define TOK_ELSE 4 /* else */
|
|
#define TOK_LBRACE 5 /* { */
|
|
#define TOK_RBRACE 6 /* } */
|
|
#define TOK_LOGICAL 7 /* ||, &&, ! */
|
|
#define TOK_EXPR 8 /* +, -, /, % */
|
|
#define TOK_SEMI 9 /* ; */
|
|
#define TOK_LITERAL 10 /* literal string */
|
|
#define TOK_FUNCTION 11 /* function name */
|
|
#define TOK_NEWLINE 12 /* newline white space */
|
|
#define TOK_ID 13 /* function name */
|
|
#define TOK_EOF 14 /* End of script */
|
|
#define TOK_COMMA 15 /* Comma */
|
|
#define TOK_VAR 16 /* var */
|
|
#define TOK_ASSIGNMENT 17 /* = */
|
|
#define TOK_FOR 18 /* for */
|
|
#define TOK_INC_DEC 19 /* ++, -- */
|
|
#define TOK_RETURN 20 /* return */
|
|
|
|
/*
|
|
* Expression operators
|
|
*/
|
|
#define EXPR_LESS 1 /* < */
|
|
#define EXPR_LESSEQ 2 /* <= */
|
|
#define EXPR_GREATER 3 /* > */
|
|
#define EXPR_GREATEREQ 4 /* >= */
|
|
#define EXPR_EQ 5 /* == */
|
|
#define EXPR_NOTEQ 6 /* != */
|
|
#define EXPR_PLUS 7 /* + */
|
|
#define EXPR_MINUS 8 /* - */
|
|
#define EXPR_DIV 9 /* / */
|
|
#define EXPR_MOD 10 /* % */
|
|
#define EXPR_LSHIFT 11 /* << */
|
|
#define EXPR_RSHIFT 12 /* >> */
|
|
#define EXPR_MUL 13 /* * */
|
|
#define EXPR_ASSIGNMENT 14 /* = */
|
|
#define EXPR_INC 15 /* ++ */
|
|
#define EXPR_DEC 16 /* -- */
|
|
#define EXPR_BOOL_COMP 17 /* ! */
|
|
/*
|
|
* Conditional operators
|
|
*/
|
|
#define COND_AND 1 /* && */
|
|
#define COND_OR 2 /* || */
|
|
#define COND_NOT 3 /* ! */
|
|
|
|
/*
|
|
* States
|
|
*/
|
|
#define STATE_ERR -1 /* Error state */
|
|
#define STATE_EOF 1 /* End of file */
|
|
#define STATE_COND 2 /* Parsing a "(conditional)" stmt */
|
|
#define STATE_COND_DONE 3
|
|
#define STATE_RELEXP 4 /* Parsing a relational expr */
|
|
#define STATE_RELEXP_DONE 5
|
|
#define STATE_EXPR 6 /* Parsing an expression */
|
|
#define STATE_EXPR_DONE 7
|
|
#define STATE_STMT 8 /* Parsing General statement */
|
|
#define STATE_STMT_DONE 9
|
|
#define STATE_STMT_BLOCK_DONE 10 /* End of block "}" */
|
|
#define STATE_ARG_LIST 11 /* Function arg list */
|
|
#define STATE_ARG_LIST_DONE 12
|
|
#define STATE_DEC_LIST 16 /* Declaration list */
|
|
#define STATE_DEC_LIST_DONE 17
|
|
#define STATE_DEC 18
|
|
#define STATE_DEC_DONE 19
|
|
|
|
#define STATE_RET 20 /* Return statement */
|
|
|
|
#define STATE_BEGIN STATE_STMT
|
|
|
|
/*
|
|
* Flags. Used in ej_t and as parameter to parse()
|
|
*/
|
|
#define FLAGS_EXE 0x1 /* Execute statements */
|
|
#define FLAGS_VARIABLES 0x2 /* Allocated variables store */
|
|
#define FLAGS_FUNCTIONS 0x4 /* Allocated function store */
|
|
|
|
/*
|
|
* Function call structure
|
|
*/
|
|
typedef struct {
|
|
char_t *fname; /* Function name */
|
|
char_t **args; /* Args for function (halloc) */
|
|
int nArgs; /* Number of args */
|
|
} ejfunc_t;
|
|
|
|
/*
|
|
* EJ evaluation block structure
|
|
*/
|
|
typedef struct ejEval {
|
|
ringq_t tokbuf; /* Current token */
|
|
ringq_t script; /* Input script for parsing */
|
|
char_t *putBackToken; /* Putback token string */
|
|
int putBackTokenId; /* Putback token ID */
|
|
char_t *line; /* Current line */
|
|
int lineLength; /* Current line length */
|
|
int lineNumber; /* Parse line number */
|
|
int lineColumn; /* Column in line */
|
|
} ejinput_t;
|
|
|
|
/*
|
|
* Per Ejscript session structure
|
|
*/
|
|
typedef struct ej {
|
|
ejinput_t *input; /* Input evaluation block */
|
|
sym_fd_t functions; /* Symbol table for functions */
|
|
sym_fd_t *variables; /* hAlloc list of variables */
|
|
int variableMax; /* Number of entries */
|
|
ejfunc_t *func; /* Current function */
|
|
char_t *result; /* Current expression result */
|
|
char_t *error; /* Error message */
|
|
char_t *token; /* Pointer to token string */
|
|
int tid; /* Current token id */
|
|
int eid; /* Halloc handle */
|
|
int flags; /* Flags */
|
|
int userHandle; /* User defined handle */
|
|
} ej_t;
|
|
|
|
/******************************** Prototypes **********************************/
|
|
|
|
extern int ejOpenBlock(int eid);
|
|
extern int ejCloseBlock(int eid, int vid);
|
|
extern char_t *ejEvalBlock(int eid, char_t *script, char_t **emsg);
|
|
#ifndef __NO_EJ_FILE
|
|
extern char_t *ejEvalFile(int eid, char_t *path, char_t **emsg);
|
|
#endif
|
|
extern int ejRemoveGlobalFunction(int eid, char_t *name);
|
|
extern void *ejGetGlobalFunction(int eid, char_t *name);
|
|
extern int ejSetGlobalFunctionDirect(sym_fd_t functions, char_t *name,
|
|
int (*fn)(int eid, void *handle, int argc, char_t **argv));
|
|
extern void ejError(ej_t* ep, char_t* fmt, ...);
|
|
extern void ejSetUserHandle(int eid, int handle);
|
|
extern int ejGetUserHandle(int eid);
|
|
extern int ejGetLineNumber(int eid);
|
|
extern char_t *ejGetResult(int eid);
|
|
extern void ejSetLocalVar(int eid, char_t *var, char_t *value);
|
|
extern void ejSetGlobalVar(int eid, char_t *var, char_t *value);
|
|
|
|
extern int ejLexOpen(ej_t* ep);
|
|
extern void ejLexClose(ej_t* ep);
|
|
extern int ejLexOpenScript(ej_t* ep, char_t *script);
|
|
extern void ejLexCloseScript(ej_t* ep);
|
|
extern void ejLexSaveInputState(ej_t* ep, ejinput_t* state);
|
|
extern void ejLexFreeInputState(ej_t* ep, ejinput_t* state);
|
|
extern void ejLexRestoreInputState(ej_t* ep, ejinput_t* state);
|
|
extern int ejLexGetToken(ej_t* ep, int state);
|
|
extern void ejLexPutbackToken(ej_t* ep, int tid, char_t *string);
|
|
|
|
extern sym_fd_t ejGetVariableTable(int eid);
|
|
extern sym_fd_t ejGetFunctionTable(int eid);
|
|
|
|
extern int ejEmfOpen(int eid);
|
|
extern void ejEmfClose(int eid);
|
|
|
|
extern int ejEmfDbRead(int eid, void *handle, int argc, char_t **argv);
|
|
extern int ejEmfDbReadKeyed(int eid, void *handle, int argc, char_t **argv);
|
|
extern int ejEmfDbTableGetNrow(int eid, void *handle, int argc, char_t **argv);
|
|
extern int ejEmfDbDeleteRow(int eid, void *handle, int argc, char_t **argv);
|
|
extern int ejEmfTrace(int eid, void *handle, int argc, char_t **argv);
|
|
extern int ejEmfDbWrite(int eid, void *handle, int argc, char_t **argv);
|
|
extern int ejEmfDbCollectTable(int eid, void *handle, int argc, char_t **argv);
|
|
|
|
#endif /* _h_EJINTERNAL */
|