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/*###################################################################################
#
# Embperl - Copyright (c) 1997-1998 Gerald Richter / ECOS
#
# You may distribute under the terms of either the GNU General Public
# License or the Artistic License, as specified in the Perl README file.
# For use with Apache httpd and mod_perl, see also Apache copyright.
#
# THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
# WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
###################################################################################*/
#include "ep.h"
#include "epmacro.h"
/* ---------------------------------------------------------------------------- */
/* Output a string and escapte html special character to html special representation (&xxx;) */
/* */
/* i/o sData = input: perl string */
/* */
/* ---------------------------------------------------------------------------- */
void OutputToHtml (/*i/o*/ const char * sData)
{
char * pHtml ;
const char * p = sData ;
EPENTRY (OutputToHtml) ;
if (pCurrEscape == NULL)
{
oputs (sData) ;
return ;
}
while (*sData)
{
if (*sData == '\\')
{
if (p != sData)
owrite (p, 1, sData - p) ;
sData++ ;
p = sData ;
}
else
{
pHtml = pCurrEscape[(unsigned char)(*sData)].sHtml ;
if (*pHtml)
{
if (p != sData)
owrite (p, 1, sData - p) ;
oputs (pHtml) ;
p = sData + 1;
}
}
sData++ ;
}
if (p != sData)
owrite (p, 1, sData - p) ;
}
/* ---------------------------------------------------------------------------- */
/* find substring ignore case */
/* */
/* in pSring = string to search in (any case) */
/* in pSubStr = string to search for (must be upper case) */
/* */
/* out ret = pointer to pSubStr in pStringvalue or NULL if not found */
/* */
/* ---------------------------------------------------------------------------- */
static const char * stristr (/*in*/ const char * pString,
/*in*/ const char * pSubString)
{
char c = *pSubString ;
int l = strlen (pSubString) ;
do
{
while (*pString && toupper (*pString) != c)
pString++ ;
if (*pString == '\0')
return NULL ;
if (strnicmp (pString, pSubString, l) == 0)
return pString ;
pString++ ;
}
while (TRUE) ;
}
/* ---------------------------------------------------------------------------- */
/* make string lower case */
/* */
/* i/o pSring = string to search in (any case) */
/* */
/* ---------------------------------------------------------------------------- */
static char * strlower (/*in*/ char * pString)
{
char * p = pString ;
while (*p)
{
*p = tolower (*p) ;
p++ ;
}
return pString ;
}
/* */
/* compare html escapes */
/* */
static int CmpCharTrans (/*in*/ const void * pKey,
/*in*/ const void * pEntry)
{
return strcmp ((const char *)pKey, ((struct tCharTrans *)pEntry) -> sHtml) ;
}
/* ------------------------------------------------------------------------- */
/* */
/* replace html special character representation (&xxx;) with correct chars */
/* and delete all html tags */
/* The Replacement is done in place, the whole string will become shorter */
/* and is padded with spaces */
/* tags and special charcters which are preceeded by a \ are not translated */
/* carrige returns are replaced by spaces */
/* if optRawInput is set the functions do just nothing */
/* */
/* i/o sData = input: html string */
/* output: perl string */
/* */
/* ------------------------------------------------------------------------- */
void TransHtml (/*i/o*/ char * sData)
{
char * p = sData ;
char * s ;
char * e ;
struct tCharTrans * pChar ;
EPENTRY (TransHtml) ;
if (bOptions & optRawInput)
{ /* Just remove CR for raw input */
while (*p != '\0')
{
if (*p == '\r')
*p = ' ' ;
p++ ;
}
return ;
}
s = NULL ;
e = sData + strlen (sData) ;
while (*p)
{
if (*p == '\\')
{
if (p[1] == '<')
{ /* Quote next HTML tag */
p += 2 ;
while (*p && *p != '>')
p++ ;
}
else if (p[1] == '&')
{ /* Quote next HTML char */
p += 2 ;
while (*p && *p != ';')
p++ ;
}
else
p++ ; /* Nothing to quote */
}
else if (*p == '\r')
{
*p++ = ' ' ;
}
else
{
if (p[0] == '<' && (isalpha (p[1]) || p[1] == '/'))
{ /* count HTML tag length */
s = p ;
p++ ;
while (*p && *p != '>')
p++ ;
if (*p)
p++ ;
else
{ /* missing left '>' -> no html tag */
p = s ;
s = NULL ;
}
}
else if (p[0] == '&')
{ /* count HTML char length */
s = p ;
p++ ;
while (*p && *p != ';')
p++ ;
if (*p)
{
*p = '\0' ;
p++ ;
pChar = (struct tCharTrans *)bsearch (s, Html2Char, sizeHtml2Char, sizeof (struct tCharTrans), CmpCharTrans) ;
if (pChar)
*s++ = pChar -> c ;
else
{
*(p-1)=';' ;
p = s ;
s = NULL ;
}
}
else
{
p = s ;
s = NULL ;
}
}
if (s && (p - s) > 0)
{ /* copy rest of string, pad with spaces */
memmove (s, p, e - p + 1) ;
memset (e - (p - s), ' ', (p - s)) ;
p = s ;
s = NULL ;
}
else
if (*p)
p++ ;
}
}
}
/* ---------------------------------------------------------------------------- */
/* get argument from html tag */
/* */
/* in pTag = html tag args (eg. arg=val arg=val .... >) */
/* in pArg = name of argument (must be upper case) */
/* */
/* out pLen = length of value */
/* out ret = pointer to value or NULL if not found */
/* */
/* ---------------------------------------------------------------------------- */
const char * GetHtmlArg (/*in*/ const char * pTag,
/*in*/ const char * pArg,
/*out*/ int * pLen)
{
const char * pVal ;
const char * pEnd ;
const char * pName ;
int l ;
EPENTRY (GetHtmlArg) ;
l = strlen (pArg) ;
while (*pTag)
{
*pLen = 0 ;
while (*pTag && !isalpha (*pTag))
pTag++ ;
pVal = pTag ;
while (*pVal && !isspace (*pVal) && *pVal != '=' && *pVal != '>')
pVal++ ;
while (*pVal && isspace (*pVal))
pVal++ ;
if (*pVal == '=')
{
pVal++ ;
while (*pVal && isspace (*pVal))
pVal++ ;
pEnd = pVal ;
if (*pVal == '"' || *pVal == '\'')
{
char q = *pVal++ ;
pEnd++ ;
while (*pEnd && *pEnd != q)
pEnd++ ;
}
else
{
while (*pEnd && !isspace (*pEnd) && *pEnd != '>')
pEnd++ ;
}
*pLen = pEnd - pVal ;
}
else
pEnd = pVal ;
if (strnicmp (pTag, pArg, l) == 0 && (pTag[l] == '=' || isspace (pTag[l]) || pTag[l] == '>' || pTag[l] == '\0'))
if (*pLen > 0)
return pVal ;
else
return pTag ;
pTag = pEnd ;
}
*pLen = 0 ;
return NULL ;
}
/* ---------------------------------------------------------------------------- */
/* */
/* Get a Value out of a perl hash */
/* */
/* ---------------------------------------------------------------------------- */
char * GetHashValueLen (/*in*/ HV * pHash,
/*in*/ const char * sKey,
/*in*/ int nLen,
/*in*/ int nMaxLen,
/*out*/ char * sValue)
{
SV ** ppSV ;
char * p ;
STRLEN len ;
EPENTRY (GetHashValueLen) ;
ppSV = hv_fetch(pHash, (char *)sKey, nLen, 0) ;
if (ppSV != NULL)
{
p = SvPV (*ppSV ,len) ;
if (len >= nMaxLen)
len = nMaxLen - 1 ;
strncpy (sValue, p, len) ;
}
else
len = 0 ;
sValue[len] = '\0' ;
return sValue ;
}
char * GetHashValue (/*in*/ HV * pHash,
/*in*/ const char * sKey,
/*in*/ int nMaxLen,
/*out*/ char * sValue)
{
return GetHashValueLen (pHash, sKey, strlen (sKey), nMaxLen, sValue) ;
}
/* ------------------------------------------------------------------------- */
/* */
/* GetLineNo */
/* */
/* Counts the \n between pCurrPos and pSourcelinePos and in-/decrements */
/* nSourceline accordingly */
/* */
/* return Linenumber of pCurrPos */
/* */
/* ------------------------------------------------------------------------- */
int GetLineNo ()
{
char * pPos = pCurrPos ;
if (pSourcelinePos == NULL)
return nSourceline = 1 ;
if (pLineNoCurrPos)
pPos = pLineNoCurrPos ;
if (pPos == NULL || pPos == pSourcelinePos || pPos < pBuf || pPos > pEndPos)
return nSourceline ;
if (pPos > pSourcelinePos)
{
char * p = pSourcelinePos ;
while (p < pPos && p < pEndPos)
{
if (*p++ == '\n')
nSourceline++ ;
}
}
else
{
char * p = pSourcelinePos ;
while (p > pPos && p > pBuf)
{
if (*--p == '\n')
nSourceline-- ;
}
}
pSourcelinePos = pPos ;
return nSourceline ;
}
/* ------------------------------------------------------------------------- */
/* */
/* Dirname */
/* */
/* returns dir name of file */
/* */
/* ------------------------------------------------------------------------- */
void Dirname (/*in*/ const char * filename,
/*out*/ char * dirname,
/*in*/ int size)
{
char * p = strrchr (filename, '/') ;
if (p == NULL)
{
strncpy (dirname, ".", size) ;
return ;
}
if (size - 1 > p - filename)
size = p - filename ;
strncpy (dirname, filename, size) ;
dirname[size] = '\0' ;
return ;
}
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