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-%{
-
-/***************************************************************************
-(C) Copyright 1996 Apple Computer, Inc., AT&T Corp., International
-Business Machines Corporation and Siemens Rolm Communications Inc.
-
-For purposes of this license notice, the term Licensors shall mean,
-collectively, Apple Computer, Inc., AT&T Corp., International
-Business Machines Corporation and Siemens Rolm Communications Inc.
-The term Licensor shall mean any of the Licensors.
-
-Subject to acceptance of the following conditions, permission is hereby
-granted by Licensors without the need for written agreement and without
-license or royalty fees, to use, copy, modify and distribute this
-software for any purpose.
-
-The above copyright notice and the following four paragraphs must be
-reproduced in all copies of this software and any software including
-this software.
-
-THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS AND NO LICENSOR SHALL HAVE
-ANY OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS OR
-MODIFICATIONS.
-
-IN NO EVENT SHALL ANY LICENSOR BE LIABLE TO ANY PARTY FOR DIRECT,
-INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOST PROFITS ARISING OUT
-OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
-DAMAGE.
-
-EACH LICENSOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED,
-INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF NONINFRINGEMENT OR THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.
-
-The software is provided with RESTRICTED RIGHTS. Use, duplication, or
-disclosure by the government are subject to restrictions set forth in
-DFARS 252.227-7013 or 48 CFR 52.227-19, as applicable.
-
-***************************************************************************/
-
-/*
- * src: vcc.c
- * doc: Parser for vCard and vCalendar. Note that this code is
- * generated by a yacc parser generator. Generally it should not
- * be edited by hand. The real source is vcc.y. The #line directives
- * can be commented out here to make it easier to trace through
- * in a debugger. However, if a bug is found it should
- * be fixed in vcc.y and this file regenerated.
- */
-
-
-/* debugging utilities */
-#if __DEBUG
-#define DBG_(x) printf x
-#else
-#define DBG_(x)
-#endif
-
-/**** External Functions ****/
-
-/* assign local name to parser variables and functions so that
- we can use more than one yacc based parser.
-*/
-
-#define yyparse mime_parse
-#define yylex mime_lex
-#define yyerror mime_error
-#define yychar mime_char
-/* #define p_yyval p_mime_val */
-#undef yyval
-#define yyval mime_yyval
-/* #define p_yylval p_mime_lval */
-#undef yylval
-#define yylval mime_yylval
-#define yydebug mime_debug
-#define yynerrs mime_nerrs
-#define yyerrflag mime_errflag
-#define yyss mime_ss
-#define yyssp mime_ssp
-#define yyvs mime_vs
-#define yyvsp mime_vsp
-#define yylhs mime_lhs
-#define yylen mime_len
-#define yydefred mime_defred
-#define yydgoto mime_dgoto
-#define yysindex mime_sindex
-#define yyrindex mime_rindex
-#define yygindex mime_gindex
-#define yytable mime_table
-#define yycheck mime_check
-#define yyname mime_name
-#define yyrule mime_rule
-#define YYPREFIX "mime_"
-
-
-#ifndef _NO_LINE_FOLDING
-#define _SUPPORT_LINE_FOLDING 1
-#endif
-
-/* undef below if compile with MFC */
-/* #define INCLUDEMFC 1 */
-
-#if defined(WIN32) || defined(_WIN32)
-#ifdef INCLUDEMFC
-#include <afx.h>
-#endif
-#endif
-
-#include <string.h>
-#ifndef __MWERKS__
-#include <malloc.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include "vcc.h"
-
-static int yylex(void);
-static void yyerror(char *s);
-
-/**** Types, Constants ****/
-
-#define YYDEBUG 1 /* 1 to compile in some debugging code */
-#define MAXTOKEN 256 /* maximum token (line) length */
-#define YYSTACKSIZE 50 /* ~unref ? */
-#define MAXLEVEL 10 /* max # of nested objects parseable */
- /* (includes outermost) */
-
-
-/**** Global Variables ****/
-int mime_lineNum, mime_numErrors; /* yyerror() can use these */
-static VObject* vObjList;
-static VObject *curProp;
-static VObject *curObj;
-static VObject* ObjStack[MAXLEVEL];
-static int ObjStackTop;
-
-
-/* A helpful utility for the rest of the app. */
-#if __CPLUSPLUS__
-extern "C" {
-#endif
-
- extern void Parse_Debug(const char *s);
- extern void yyerror(char *s);
-
-#if __CPLUSPLUS__
- };
-#endif
-
-int yyparse(void);
-
-enum LexMode {
- L_NORMAL,
- L_VCARD,
- L_VCAL,
- L_VEVENT,
- L_VTODO,
- L_VALUES,
- L_BASE64,
- L_QUOTED_PRINTABLE
- };
-
-/**** Private Forward Declarations ****/
-static int pushVObject(const char *prop);
-static VObject* popVObject(void);
-#ifndef _SUPPORT_LINE_FOLDING
-static char* lexDataFromBase64(void);
-#endif
-static void lexPopMode(int top);
-static int lexWithinMode(enum LexMode mode);
-static void lexPushMode(enum LexMode mode);
-static void enterProps(const char *s);
-static void enterAttr(const char *s1, const char *s2);
-#if 0
-static void enterValues(const char *value);
-#endif
-static void mime_error_(char *s);
- static void appendValue(const char *value);
-
-%}
-
-/***************************************************************************/
-/*** The grammar ****/
-/***************************************************************************/
-
-%union {
- char *str;
- VObject *vobj;
- }
-
-%token
- EQ COLON DOT SEMICOLON SPACE HTAB LINESEP NEWLINE
- BEGIN_VCARD END_VCARD BEGIN_VCAL END_VCAL
- BEGIN_VEVENT END_VEVENT BEGIN_VTODO END_VTODO
- ID
-
-/*
- * NEWLINE is the token that would occur outside a vCard,
- * while LINESEP is the token that would occur inside a vCard.
- */
-
-%token <str>
- STRING ID
-
-%type <str> name value
-
-%type <vobj> vcard vcal vobject
-
-%start mime
-
-%%
-
-
-mime: vobjects
- ;
-
-vobjects: vobject
- { addList(&vObjList, $1); curObj = 0; }
- vobjects
- | vobject
- { addList(&vObjList, $1); curObj = 0; }
- ;
-
-vobject: vcard
- | vcal
- ;
-
-vcard:
- BEGIN_VCARD
- {
- lexPushMode(L_VCARD);
- if (!pushVObject(VCCardProp)) YYERROR;
- }
- items END_VCARD
- {
- lexPopMode(0);
- $$ = popVObject();
- }
- | BEGIN_VCARD
- {
- lexPushMode(L_VCARD);
- if (!pushVObject(VCCardProp)) YYERROR;
- }
- END_VCARD
- {
- lexPopMode(0);
- $$ = popVObject();
- }
- ;
-
-items: item items
- | item
- ;
-
-item: prop COLON
- {
- lexPushMode(L_VALUES);
- }
- values LINESEP
- {
- if (lexWithinMode(L_BASE64) || lexWithinMode(L_QUOTED_PRINTABLE))
- lexPopMode(0);
- lexPopMode(0);
- }
- | error
- ;
-
-prop: name
- {
- enterProps($1);
- }
- attr_params
- | name
- {
- enterProps($1);
- }
- ;
-
-attr_params: attr_param attr_params
- | attr_param
- ;
-
-attr_param: SEMICOLON attr
- ;
-
-attr: name
- {
- enterAttr($1,0);
- }
- | name EQ name
- {
- enterAttr($1,$3);
-
- }
- ;
-
-name: ID
- ;
-
-values: value SEMICOLON { appendValue($1); } values
- | value
- { appendValue($1); }
- ;
-
-value: STRING
- | { $$ = 0; }
- ;
-
-vcal:
- BEGIN_VCAL
- { if (!pushVObject(VCCalProp)) YYERROR; }
- calitems
- END_VCAL
- { $$ = popVObject(); }
- | BEGIN_VCAL
- { if (!pushVObject(VCCalProp)) YYERROR; }
- END_VCAL
- { $$ = popVObject(); }
- ;
-
-calitems: calitem calitems
- | calitem
- ;
-
-calitem:
- eventitem
- | todoitem
- | items
- ;
-
-eventitem:
- BEGIN_VEVENT
- {
- lexPushMode(L_VEVENT);
- if (!pushVObject(VCEventProp)) YYERROR;
- }
- items
- END_VEVENT
- {
- lexPopMode(0);
- popVObject();
- }
- | BEGIN_VEVENT
- {
- lexPushMode(L_VEVENT);
- if (!pushVObject(VCEventProp)) YYERROR;
- }
- END_VEVENT
- {
- lexPopMode(0);
- popVObject();
- }
- ;
-
-todoitem:
- BEGIN_VTODO
- {
- lexPushMode(L_VTODO);
- if (!pushVObject(VCTodoProp)) YYERROR;
- }
- items
- END_VTODO
- {
- lexPopMode(0);
- popVObject();
- }
- | BEGIN_VTODO
- {
- lexPushMode(L_VTODO);
- if (!pushVObject(VCTodoProp)) YYERROR;
- }
- END_VTODO
- {
- lexPopMode(0);
- popVObject();
- }
- ;
-
-%%
-/* ///////////////////////////////////////////////////////////////////////// */
-static int pushVObject(const char *prop)
- {
- VObject *newObj;
- if (ObjStackTop == MAXLEVEL)
- return FALSE;
-
- ObjStack[++ObjStackTop] = curObj;
-
- if (curObj) {
- newObj = addProp(curObj,prop);
- curObj = newObj;
- }
- else
- curObj = newVObject(prop);
-
- return TRUE;
- }
-
-
-/* ///////////////////////////////////////////////////////////////////////// */
-/* This pops the recently built vCard off the stack and returns it. */
-static VObject* popVObject()
- {
- VObject *oldObj;
- if (ObjStackTop < 0) {
- yyerror("pop on empty Object Stack\n");
- return 0;
- }
- oldObj = curObj;
- curObj = ObjStack[ObjStackTop--];
-
- return oldObj;
- }
-
-static void appendValue(const char *value)
-{
- char *p1, *p2;
- wchar_t *p3;
- int i;
-
- if (fieldedProp && *fieldedProp) {
- if (value) {
- addPropValue(curProp, *fieldedProp, value);
- }
- /* else this field is empty, advance to next field */
- fieldedProp++;
- } else {
- if (value) {
- if (vObjectUStringZValue(curProp)) {
- p1 = fakeCString(vObjectUStringZValue(curProp));
- p2 = malloc(sizeof(char *) * (strlen(p1)+strlen(value)+1));
- strcpy(p2, p1);
- deleteStr(p1);
-
- i = strlen(p2);
- p2[i] = ';';
- p2[i+1] = '\0';
- p2 = strcat(p2, value);
- p3 = (wchar_t *) vObjectUStringZValue(curProp);
- free(p3);
- setVObjectUStringZValue_(curProp,fakeUnicode(p2,0));
- deleteStr(p2);
- } else {
- setVObjectUStringZValue_(curProp,fakeUnicode(value,0));
- }
- }
- }
- deleteStr(value);
-}
-
-#if 0
-static void enterValues(const char *value)
- {
- if (fieldedProp && *fieldedProp) {
- if (value) {
- addPropValue(curProp,*fieldedProp,value);
- }
- /* else this field is empty, advance to next field */
- fieldedProp++;
- }
- else {
- if (value) {
- setVObjectUStringZValue_(curProp,fakeUnicode(value,0));
- }
- }
- deleteStr(value);
- }
-#endif
-
-static void enterProps(const char *s)
- {
- curProp = addGroup(curObj,s);
- deleteStr(s);
- }
-
-static void enterAttr(const char *s1, const char *s2)
- {
- const char *p1, *p2 = NULL;
- p1 = lookupProp_(s1);
- if (s2) {
- VObject *a;
- p2 = lookupProp_(s2);
- a = addProp(curProp,p1);
- setVObjectStringZValue(a,p2);
- }
- else
- addProp(curProp,p1);
- if (stricmp(p1,VCBase64Prop) == 0 || (s2 && stricmp(p2,VCBase64Prop)==0))
- lexPushMode(L_BASE64);
- else if (stricmp(p1,VCQuotedPrintableProp) == 0
- || (s2 && stricmp(p2,VCQuotedPrintableProp)==0))
- lexPushMode(L_QUOTED_PRINTABLE);
- deleteStr(s1); deleteStr(s2);
- }
-
-
-#define MAX_LEX_LOOKAHEAD_0 32
-#define MAX_LEX_LOOKAHEAD 64
-#define MAX_LEX_MODE_STACK_SIZE 10
-#define LEXMODE() (lexBuf.lexModeStack[lexBuf.lexModeStackTop])
-
-struct LexBuf {
- /* input */
-#ifdef INCLUDEMFC
- CFile *inputFile;
-#else
- FILE *inputFile;
-#endif
- char *inputString;
- unsigned long curPos;
- unsigned long inputLen;
- /* lookahead buffer */
- /* -- lookahead buffer is int instead of char so that EOF
- / can be represented correctly.
- */
- unsigned long len;
- int buf[MAX_LEX_LOOKAHEAD];
- unsigned long getPtr;
- /* context stack */
- unsigned long lexModeStackTop;
- enum LexMode lexModeStack[MAX_LEX_MODE_STACK_SIZE];
- /* token buffer */
- unsigned long maxToken;
- char *strs;
- unsigned long strsLen;
- } lexBuf;
-
-static void lexPushMode(enum LexMode mode)
- {
- if (lexBuf.lexModeStackTop == (MAX_LEX_MODE_STACK_SIZE-1))
- yyerror("lexical context stack overflow");
- else {
- lexBuf.lexModeStack[++lexBuf.lexModeStackTop] = mode;
- }
- }
-
-static void lexPopMode(int top)
- {
- /* special case of pop for ease of error recovery -- this
- version will never underflow */
- if (top)
- lexBuf.lexModeStackTop = 0;
- else
- if (lexBuf.lexModeStackTop > 0) lexBuf.lexModeStackTop--;
- }
-
-static int lexWithinMode(enum LexMode mode) {
- unsigned long i;
- for (i=0;i<lexBuf.lexModeStackTop;i++)
- if (mode == lexBuf.lexModeStack[i]) return 1;
- return 0;
- }
-
-static int lexGetc_()
- {
- /* get next char from input, no buffering. */
- if (lexBuf.curPos == lexBuf.inputLen)
- return EOF;
- else if (lexBuf.inputString)
- return *(lexBuf.inputString + lexBuf.curPos++);
- else {
-#ifdef INCLUDEMFC
- char result;
- return lexBuf.inputFile->Read(&result, 1) == 1 ? result : EOF;
-#else
- return fgetc(lexBuf.inputFile);
-#endif
- }
- }
-
-static int lexGeta()
- {
- ++lexBuf.len;
- return (lexBuf.buf[lexBuf.getPtr] = lexGetc_());
- }
-
-static int lexGeta_(int i)
- {
- ++lexBuf.len;
- return (lexBuf.buf[(lexBuf.getPtr+i)%MAX_LEX_LOOKAHEAD] = lexGetc_());
- }
-
-static void lexSkipLookahead() {
- if (lexBuf.len > 0 && lexBuf.buf[lexBuf.getPtr]!=EOF) {
- /* don't skip EOF. */
- lexBuf.getPtr = (lexBuf.getPtr + 1) % MAX_LEX_LOOKAHEAD;
- lexBuf.len--;
- }
- }
-
-static int lexLookahead() {
- int c = (lexBuf.len)?
- lexBuf.buf[lexBuf.getPtr]:
- lexGeta();
- /* do the \r\n -> \n or \r -> \n translation here */
- if (c == '\r') {
- int a = (lexBuf.len>1)?
- lexBuf.buf[(lexBuf.getPtr+1)%MAX_LEX_LOOKAHEAD]:
- lexGeta_(1);
- if (a == '\n') {
- lexSkipLookahead();
- }
- lexBuf.buf[lexBuf.getPtr] = c = '\n';
- }
- else if (c == '\n') {
- int a = (lexBuf.len>1)?
- lexBuf.buf[lexBuf.getPtr+1]:
- lexGeta_(1);
- if (a == '\r') {
- lexSkipLookahead();
- }
- lexBuf.buf[lexBuf.getPtr] = '\n';
- }
- return c;
- }
-
-static int lexGetc() {
- int c = lexLookahead();
- if (lexBuf.len > 0 && lexBuf.buf[lexBuf.getPtr]!=EOF) {
- /* EOF will remain in lookahead buffer */
- lexBuf.getPtr = (lexBuf.getPtr + 1) % MAX_LEX_LOOKAHEAD;
- lexBuf.len--;
- }
- return c;
- }
-
-static void lexSkipLookaheadWord() {
- if (lexBuf.strsLen <= lexBuf.len) {
- lexBuf.len -= lexBuf.strsLen;
- lexBuf.getPtr = (lexBuf.getPtr + lexBuf.strsLen) % MAX_LEX_LOOKAHEAD;
- }
- }
-
-static void lexClearToken()
- {
- lexBuf.strsLen = 0;
- }
-
-static void lexAppendc(int c)
- {
- lexBuf.strs[lexBuf.strsLen] = c;
- /* append up to zero termination */
- if (c == 0) return;
- lexBuf.strsLen++;
- if (lexBuf.strsLen >= lexBuf.maxToken) {
- /* double the token string size */
- lexBuf.maxToken <<= 1;
- lexBuf.strs = (char*) realloc(lexBuf.strs,(size_t)lexBuf.maxToken);
- }
- }
-
-static char* lexStr() {
- return dupStr(lexBuf.strs,(size_t)lexBuf.strsLen+1);
- }
-
-static void lexSkipWhite() {
- int c = lexLookahead();
- while (c == ' ' || c == '\t') {
- lexSkipLookahead();
- c = lexLookahead();
- }
- }
-
-static char* lexGetWord() {
- int c;
- lexSkipWhite();
- lexClearToken();
- c = lexLookahead();
- while (c != EOF && !strchr("\t\n ;:=",c)) {
- lexAppendc(c);
- lexSkipLookahead();
- c = lexLookahead();
- }
- lexAppendc(0);
- return lexStr();
- }
-
-#if 0
-static void lexPushLookahead(char *s, int len) {
- int putptr;
- if (len == 0) len = strlen(s);
- putptr = (int)lexBuf.getPtr - len;
- /* this function assumes that length of word to push back
- / is not greater than MAX_LEX_LOOKAHEAD.
- */
- if (putptr < 0) putptr += MAX_LEX_LOOKAHEAD;
- lexBuf.getPtr = putptr;
- while (*s) {
- lexBuf.buf[putptr] = *s++;
- putptr = (putptr + 1) % MAX_LEX_LOOKAHEAD;
- }
- lexBuf.len += len;
- }
-#endif
-
-static void lexPushLookaheadc(int c) {
- int putptr;
- /* can't putback EOF, because it never leaves lookahead buffer */
- if (c == EOF) return;
- putptr = (int)lexBuf.getPtr - 1;
- if (putptr < 0) putptr += MAX_LEX_LOOKAHEAD;
- lexBuf.getPtr = putptr;
- lexBuf.buf[putptr] = c;
- lexBuf.len += 1;
- }
-
-static char* lexLookaheadWord() {
- /* this function can lookahead word with max size of MAX_LEX_LOOKAHEAD_0
- / and thing bigger than that will stop the lookahead and return 0;
- / leading white spaces are not recoverable.
- */
- int c;
- int len = 0;
- int curgetptr = 0;
- lexSkipWhite();
- lexClearToken();
- curgetptr = (int)lexBuf.getPtr; /* remember! */
- while (len < (MAX_LEX_LOOKAHEAD_0)) {
- c = lexGetc();
- len++;
- if (c == EOF || strchr("\t\n ;:=", c)) {
- lexAppendc(0);
- /* restore lookahead buf. */
- lexBuf.len += len;
- lexBuf.getPtr = curgetptr;
- return lexStr();
- }
- else
- lexAppendc(c);
- }
- lexBuf.len += len; /* char that has been moved to lookahead buffer */
- lexBuf.getPtr = curgetptr;
- return 0;
- }
-
-#ifdef _SUPPORT_LINE_FOLDING
-static void handleMoreRFC822LineBreak(int c) {
- /* suport RFC 822 line break in cases like
- * ADR: foo;
- * morefoo;
- * more foo;
- */
- if (c == ';') {
- int a;
- lexSkipLookahead();
- /* skip white spaces */
- a = lexLookahead();
- while (a == ' ' || a == '\t') {
- lexSkipLookahead();
- a = lexLookahead();
- }
- if (a == '\n') {
- lexSkipLookahead();
- a = lexLookahead();
- if (a == ' ' || a == '\t') {
- /* continuation, throw away all the \n and spaces read so
- * far
- */
- lexSkipWhite();
- lexPushLookaheadc(';');
- }
- else {
- lexPushLookaheadc('\n');
- lexPushLookaheadc(';');
- }
- }
- else {
- lexPushLookaheadc(';');
- }
- }
- }
-
-static char* lexGet1Value() {
- int c;
- lexSkipWhite();
- c = lexLookahead();
- lexClearToken();
- while (c != EOF && c != ';') {
- if (c == '\n') {
- int a;
- lexSkipLookahead();
- a = lexLookahead();
- if (a == ' ' || a == '\t') {
- lexAppendc(' ');
- lexSkipLookahead();
- }
- else {
- lexPushLookaheadc('\n');
- break;
- }
- }
- else {
- lexAppendc(c);
- lexSkipLookahead();
- }
- c = lexLookahead();
- }
- lexAppendc(0);
- handleMoreRFC822LineBreak(c);
- return c==EOF?0:lexStr();
- }
-#endif
-
-#ifndef _SUPPORT_LINE_FOLDING
-static char* lexGetStrUntil(char *termset) {
- int c = lexLookahead();
- lexClearToken();
- while (c != EOF && !strchr(termset,c)) {
- lexAppendc(c);
- lexSkipLookahead();
- c = lexLookahead();
- }
- lexAppendc(0);
- return c==EOF?0:lexStr();
- }
-#endif
-
-static int match_begin_name(int end) {
- char *n = lexLookaheadWord();
- int token = ID;
- if (n) {
- if (!stricmp(n,"vcard")) token = end?END_VCARD:BEGIN_VCARD;
- else if (!stricmp(n,"vcalendar")) token = end?END_VCAL:BEGIN_VCAL;
- else if (!stricmp(n,"vevent")) token = end?END_VEVENT:BEGIN_VEVENT;
- else if (!stricmp(n,"vtodo")) token = end?END_VTODO:BEGIN_VTODO;
- deleteStr(n);
- return token;
- }
- return 0;
- }
-
-
-#ifdef INCLUDEMFC
-static void initLex(const char *inputstring, unsigned long inputlen, CFile *inputfile)
-#else
-static void initLex(const char *inputstring, unsigned long inputlen, FILE *inputfile)
-#endif
- {
- /* initialize lex mode stack */
- lexBuf.lexModeStack[lexBuf.lexModeStackTop=0] = L_NORMAL;
-
- /* iniatialize lex buffer. */
- lexBuf.inputString = (char*) inputstring;
- lexBuf.inputLen = inputlen;
- lexBuf.curPos = 0;
- lexBuf.inputFile = inputfile;
-
- lexBuf.len = 0;
- lexBuf.getPtr = 0;
-
- lexBuf.maxToken = MAXTOKEN;
- lexBuf.strs = (char*)malloc(MAXTOKEN);
- lexBuf.strsLen = 0;
-
- }
-
-static void finiLex() {
- free(lexBuf.strs);
- }
-
-
-/* ///////////////////////////////////////////////////////////////////////// */
-/* This parses and converts the base64 format for binary encoding into
- * a decoded buffer (allocated with new). See RFC 1521.
- */
-static char * lexGetDataFromBase64()
- {
- unsigned long bytesLen = 0, bytesMax = 0;
- int quadIx = 0, pad = 0;
- unsigned long trip = 0;
- unsigned char b;
- int c;
- unsigned char *bytes = NULL;
- unsigned char *oldBytes = NULL;
-
- DBG_(("db: lexGetDataFromBase64\n"));
- while (1) {
- c = lexGetc();
- if (c == '\n') {
- ++mime_lineNum;
- if (lexLookahead() == '\n') {
- /* a '\n' character by itself means end of data */
- break;
- }
- else continue; /* ignore '\n' */
- }
- else {
- if ((c >= 'A') && (c <= 'Z'))
- b = (unsigned char)(c - 'A');
- else if ((c >= 'a') && (c <= 'z'))
- b = (unsigned char)(c - 'a') + 26;
- else if ((c >= '0') && (c <= '9'))
- b = (unsigned char)(c - '0') + 52;
- else if (c == '+')
- b = 62;
- else if (c == '/')
- b = 63;
- else if (c == '=') {
- b = 0;
- pad++;
- } else if ((c == ' ') || (c == '\t')) {
- continue;
- } else { /* error condition */
- if (bytes) free(bytes);
- else if (oldBytes) free(oldBytes);
- /* error recovery: skip until 2 adjacent newlines. */
- DBG_(("db: invalid character 0x%x '%c'\n", c,c));
- if (c != EOF) {
- c = lexGetc();
- while (c != EOF) {
- if (c == '\n' && lexLookahead() == '\n') {
- ++mime_lineNum;
- break;
- }
- c = lexGetc();
- }
- }
- return NULL;
- }
- trip = (trip << 6) | b;
- if (++quadIx == 4) {
- unsigned char outBytes[3];
- int numOut;
- int i;
- for (i = 0; i < 3; i++) {
- outBytes[2-i] = (unsigned char)(trip & 0xFF);
- trip >>= 8;
- }
- numOut = 3 - pad;
- if (bytesLen + numOut > bytesMax) {
- if (!bytes) {
- bytesMax = 1024;
- bytes = (unsigned char*)malloc((size_t)bytesMax);
- }
- else {
- bytesMax <<= 2;
- oldBytes = bytes;
- bytes = (unsigned char*)realloc(bytes,(size_t)bytesMax);
- }
- if (bytes == 0) {
- mime_error("out of memory while processing BASE64 data\n");
- }
- }
- if (bytes) {
- memcpy(bytes + bytesLen, outBytes, numOut);
- bytesLen += numOut;
- }
- trip = 0;
- quadIx = 0;
- }
- }
- } /* while */
- DBG_(("db: bytesLen = %d\n", bytesLen));
- /* kludge: all this won't be necessary if we have tree form
- representation */
- if (bytes) {
- setValueWithSize(curProp,bytes,(unsigned int)bytesLen);
- free(bytes);
- }
- else if (oldBytes) {
- setValueWithSize(curProp,oldBytes,(unsigned int)bytesLen);
- free(oldBytes);
- }
- return 0;
- }
-
-static int match_begin_end_name(int end) {
- int token;
- lexSkipWhite();
- if (lexLookahead() != ':') return ID;
- lexSkipLookahead();
- lexSkipWhite();
- token = match_begin_name(end);
- if (token == ID) {
- lexPushLookaheadc(':');
- DBG_(("db: ID '%s'\n", yylval.str));
- return ID;
- }
- else if (token != 0) {
- lexSkipLookaheadWord();
- deleteStr(yylval.str);
- DBG_(("db: begin/end %d\n", token));
- return token;
- }
- return 0;
- }
-
-static char* lexGetQuotedPrintable()
- {
- int cur;
-
- lexClearToken();
- do {
- cur = lexGetc();
- switch (cur) {
- case '=': {
- int c = 0;
- int next[2];
- int i;
- for (i = 0; i < 2; i++) {
- next[i] = lexGetc();
- if (next[i] >= '0' && next[i] <= '9')
- c = c * 16 + next[i] - '0';
- else if (next[i] >= 'A' && next[i] <= 'F')
- c = c * 16 + next[i] - 'A' + 10;
- else
- break;
- }
- if (i == 0) {
- /* single '=' follow by LINESEP is continuation sign? */
- if (next[0] == '\n') {
- ++mime_lineNum;
- }
- else {
- lexPushLookaheadc('=');
- goto EndString;
- }
- }
- else if (i == 1) {
- lexPushLookaheadc(next[1]);
- lexPushLookaheadc(next[0]);
- lexAppendc('=');
- } else {
- lexAppendc(c);
- }
- break;
- } /* '=' */
- case '\n':
- case ';':
- {
- lexPushLookaheadc(cur);
- goto EndString;
- }
- case EOF:
- break;
- default:
- lexAppendc(cur);
- break;
- } /* switch */
- } while (cur != EOF);
-
-EndString:
- lexAppendc(0);
- return lexStr();
- } /* LexQuotedPrintable */
-
-static int yylex() {
- int lexmode = LEXMODE();
- if (lexmode == L_VALUES) {
- int c = lexGetc();
- if (c == ';') {
- DBG_(("db: SEMICOLON\n"));
- lexPushLookaheadc(c);
-#ifdef _SUPPORT_LINE_FOLDING
- handleMoreRFC822LineBreak(c);
-#endif
- lexSkipLookahead();
- return SEMICOLON;
- }
- else if (strchr("\n",c)) {
- ++mime_lineNum;
- /* consume all line separator(s) adjacent to each other */
- c = lexLookahead();
- while (strchr("\n",c)) {
- lexSkipLookahead();
- c = lexLookahead();
- ++mime_lineNum;
- }
- DBG_(("db: LINESEP\n"));
- return LINESEP;
- }
- else {
- char *p = 0;
- lexPushLookaheadc(c);
- if (lexWithinMode(L_BASE64)) {
- /* get each char and convert to bin on the fly... */
- p = lexGetDataFromBase64();
- yylval.str = p;
- return STRING;
- }
- else if (lexWithinMode(L_QUOTED_PRINTABLE)) {
- p = lexGetQuotedPrintable();
- }
- else {
-#ifdef _SUPPORT_LINE_FOLDING
- p = lexGet1Value();
-#else
- p = lexGetStrUntil(";\n");
-#endif
- }
- if (p) {
- DBG_(("db: STRING: '%s'\n", p));
- yylval.str = p;
- return STRING;
- }
- else return 0;
- }
- }
- else {
- /* normal mode */
- while (1) {
- int c = lexGetc();
- switch(c) {
- case ':': {
- /* consume all line separator(s) adjacent to each other */
- /* ignoring linesep immediately after colon. */
-/* c = lexLookahead();
- while (strchr("\n",c)) {
- lexSkipLookahead();
- c = lexLookahead();
- ++mime_lineNum;
- }*/
- DBG_(("db: COLON\n"));
- return COLON;
- }
- case ';':
- DBG_(("db: SEMICOLON\n"));
- return SEMICOLON;
- case '=':
- DBG_(("db: EQ\n"));
- return EQ;
- /* ignore whitespace in this mode */
- case '\t':
- case ' ': continue;
- case '\n': {
- ++mime_lineNum;
- continue;
- }
- case EOF: return 0;
- break;
- default: {
- lexPushLookaheadc(c);
- if (isalpha(c)) {
- char *t = lexGetWord();
- yylval.str = t;
- if (!stricmp(t, "begin")) {
- return match_begin_end_name(0);
- }
- else if (!stricmp(t,"end")) {
- return match_begin_end_name(1);
- }
- else {
- DBG_(("db: ID '%s'\n", t));
- return ID;
- }
- }
- else {
- /* unknow token */
- return 0;
- }
- break;
- }
- }
- }
- }
- return 0;
- }
-
-
-/***************************************************************************/
-/*** Public Functions ****/
-/***************************************************************************/
-
-static VObject* Parse_MIMEHelper()
- {
- ObjStackTop = -1;
- mime_numErrors = 0;
- mime_lineNum = 1;
- vObjList = 0;
- curObj = 0;
-
- if (yyparse() != 0) {
- finiLex();
- return 0;
- }
-
- finiLex();
- return vObjList;
- }
-
-/* ///////////////////////////////////////////////////////////////////////// */
-DLLEXPORT(VObject*) Parse_MIME(const char *input, unsigned long len)
- {
- initLex(input, len, 0);
- return Parse_MIMEHelper();
- }
-
-
-#if INCLUDEMFC
-
-DLLEXPORT(VObject*) Parse_MIME_FromFile(CFile *file)
- {
- unsigned long startPos;
- VObject *result;
-
- initLex(0,-1,file);
- startPos = file->GetPosition();
- if (!(result = Parse_MIMEHelper()))
- file->Seek(startPos, CFile::begin);
- return result;
- }
-
-#else
-
-VObject* Parse_MIME_FromFile(FILE *file)
- {
- VObject *result;
- long startPos;
-
- initLex(0,(unsigned long)-1,file);
- startPos = ftell(file);
- if (!(result = Parse_MIMEHelper())) {
- fseek(file,startPos,SEEK_SET);
- }
- return result;
- }
-
-DLLEXPORT(VObject*) Parse_MIME_FromFileName(char *fname)
- {
- FILE *fp = fopen(fname,"r");
- if (fp) {
- VObject* o = Parse_MIME_FromFile(fp);
- fclose(fp);
- return o;
- }
- else {
- char msg[256];
- snprintf(msg, sizeof(msg), "can't open file '%s' for reading\n", fname);
- mime_error_(msg);
- return 0;
- }
- }
-
-#endif
-
-/* ///////////////////////////////////////////////////////////////////////// */
-
-static MimeErrorHandler mimeErrorHandler;
-
-DLLEXPORT(void) registerMimeErrorHandler(MimeErrorHandler me)
- {
- mimeErrorHandler = me;
- }
-
-static void mime_error(char *s)
- {
- char msg[256];
- if (mimeErrorHandler) {
- sprintf(msg,"%s at line %d", s, mime_lineNum);
- mimeErrorHandler(msg);
- }
- }
-
-static void mime_error_(char *s)
- {
- if (mimeErrorHandler) {
- mimeErrorHandler(s);
- }
- }
-
-
generated by cgit (git 2.34.1) at 2024-11-25 13:03:16 +0800