// ------------------------------------------------------------------
// GoldED+
// Copyright (C) 1990-1999 Odinn Sorensen
// Copyright (C) 1999-2000 Alexander S. Aganichev
// ------------------------------------------------------------------
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307 USA
// ------------------------------------------------------------------
// $Id$
// ------------------------------------------------------------------
// Container class.
// ------------------------------------------------------------------
#include "golded.h"
// ------------------------------------------------------------------
static bool strncont(const char *beginword, const char *stylestopchars, int n)
{
for(; (n > 0) and (*beginword != NUL); n--, beginword++) {
if(strchr(stylestopchars, *beginword) != NULL)
return true;
}
return false;
}
// ------------------------------------------------------------------
static bool in_ftn_domained_address(const char *ptr, const char *txt) {
while((ptr != txt) and (not isspace(*ptr) and not isalpha(*ptr))) {
if(isdigit(ptr[0]) and ((ptr[1] == ':') or (ptr[1] == '/')) and isdigit(ptr[2]))
return true;
--ptr;
}
return false;
}
// ------------------------------------------------------------------
const char *url_begin(const char *ptr) {
if(strnieql(ptr, "http://", 7))
return ptr+7;
if(strnieql(ptr, "ftp://", 6))
return ptr+6;
if(strnieql(ptr, "www.", 4))
return ptr+4;
if(strnieql(ptr, "ftp.", 4))
return ptr+4;
if(strnieql(ptr, "mailto:", 7))
return ptr+7;
return NULL;
}
// ------------------------------------------------------------------
inline bool isstylechar(char c) {
if(strchr(CFG->stylecodestops, c) != NULL)
return false;
return (c == '*') or (c == '/') or (c == '_') or (c == '#');
}
void Container::StyleCodeHighlight(const char* text, int row, int col, bool dohide, int color) {
uint sclen = 0;
const char* txptr = text;
char buf[200];
const char* ptr = text;
const char* stylemargins = " -|\\"; // we probably have to make a keyword for it
char* punctchars = CFG->stylecodepunct;
char* stylestopchars = CFG->stylecodestops;
char prevchar = ' ';
bool usestylies = dohide or CFG->usestylies;
if(usestylies or CFG->highlighturls) {
while(*ptr) {
if(usestylies and isstylechar(*ptr)) {
if(strchr(punctchars, prevchar)) {
int bb = 0, bi = 0, bu = 0, br = 0;
const char* beginstyle = ptr;
while(isstylechar(*ptr)) {
switch(*ptr) {
case '*': bb++; break;
case '/': bi++; break;
case '_': bu++; break;
case '#': br++; break;
}
ptr++;
}
if((bb <= 1) and (bi <= 1) and (br <= 1) and (bu <= 1) and *ptr) {
const char* beginword = ptr; // _/*>another*/_
const char* end = ptr;
do {
end = strpbrk(++end, punctchars);
} while ((end != NULL) and not isstylechar(*(end-1)));
if(end == NULL)
end = ptr+strlen(ptr);
const char* endstyle = end-1; // _/*another*/>_
if(isstylechar(*endstyle) and not strchr(stylemargins, *beginword)) {
const char* endword = endstyle;
int eb = 0, ei = 0, eu = 0, er = 0;
while(isstylechar(*endword)) {
switch(*endword) {
case '*': eb++; break;
case '/': ei++; break;
case '_': eu++; break;
case '#': er++; break;
}
endword--;
} // _/*anothe>r*/_
if(endword >= beginword and not strchr(stylemargins, *endword)) {
if((bb == eb) and (bi == ei) and (bu == eu) and (br == er)) {
bool style_stops_present = strncont(beginword, stylestopchars, endword-beginword);
if(not style_stops_present) {
int colorindex = (bb ? 1 : 0) | (bi ? 2 : 0) | (bu ? 4 : 0) | (br ? 8 : 0);
strxcpy(buf, txptr, (uint)(beginstyle-txptr)+1);
prints(row, col+sclen, color, buf);
sclen += strlen(buf);
if(dohide)
strxcpy(buf, beginword, (uint)(endword-beginword)+2);
else
strxcpy(buf, beginstyle, (uint)(endstyle-beginstyle)+2);
prints(row, col+sclen, C_STYLE[colorindex], buf);
sclen += strlen(buf);
txptr = end;
ptr = end-1;
}
}
}
}
}
}
}
else if(CFG->highlighturls) {
const char *begin;
if((begin = url_begin(ptr)) != NULL) {
const char *end = begin+strcspn(begin, " \t\"\'<>()[]");
if(ispunct(end[-1]) and (end[-1] != '/'))
--end;
if(begin < end) {
strxcpy(buf, txptr, (uint)(ptr-txptr)+1);
prints(row, col+sclen, color, buf);
sclen += strlen(buf);
strxcpy(buf, ptr, (uint)(end-ptr)+1);
prints(row, col+sclen, C_READU, buf);
sclen += strlen(buf);
txptr = end;
ptr = end-1;
}
}
else if(((ptr == text) or not in_ftn_domained_address(ptr, text)) and
(isascii(*ptr) and not isspace(*ptr) and not ispunct(*ptr) and
((ptr == text) or (not isxalnum(ptr[-1]) and (ptr[-1] != '@'))))) {
// try to guess e-mail address...
const char *commerce_at = NULL;
if(*ptr == '\"') {
const char *pair_quote = strchr(ptr+1, '\"');
if(pair_quote != NULL) {
commerce_at = pair_quote+1;
}
}
else {
commerce_at = strpbrk(ptr, " \t:/@");
}
if((commerce_at != NULL) and (*commerce_at == '@')) {
int dots_found = 0;
++commerce_at;
while((*commerce_at != NUL) and (isalnum(*commerce_at) or (*commerce_at == '.') or (*commerce_at == '-'))) {
if(*commerce_at == '.')
++dots_found;
++commerce_at;
}
while((commerce_at[-1] == '.') or (commerce_at[-1] == '-')) {
--commerce_at;
if(*commerce_at == '.')
--dots_found;
}
if(dots_found) {
strxcpy(buf, txptr, (uint)(ptr-txptr)+1);
prints(row, col+sclen, color, buf);
sclen += strlen(buf);
strxcpy(buf, ptr, (uint)(commerce_at-ptr)+1);
prints(row, col+sclen, C_READU, buf);
sclen += strlen(buf);
txptr = commerce_at;
ptr = commerce_at-1;
}
}
}
}
if(*ptr)
prevchar = *ptr++;
}
}
if(*txptr) {
prints(row, col+sclen, color, txptr);
sclen += strlen(txptr);
}
uint splen = strlen(text) - sclen;
if(splen) {
memset(buf, ' ', splen); buf[splen] = NUL;
prints(row, col+sclen, color, buf);
}
}
// ------------------------------------------------------------------