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ScriptHandler.cpp
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ScriptHandler.cpp
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/* -*- C++ -*-
*
* ScriptHandler.cpp - Script manipulation class of ONScripter-EN
*
* Copyright (c) 2001-2009 Ogapee. All rights reserved.
* (original ONScripter, of which this is a fork).
*
*
* Copyright (c) 2007-2011 "Uncle" Mion Sonozaki
*
*
* 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, see <http://www.gnu.org/licenses/>
* or write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// Modified by Haeleth, Autumn 2006, to better support OS X/Linux packaging.
// Modified by Mion, April 2009, to update from
// Ogapee's 20090331 release source code.
// Modified by Mion, November 2009, to update from
// Ogapee's 20091115 release source code.
#include "ScriptHandler.h"
#include "ONScripterLabel.h" //so this can call doErrorBox
#include <sys/stat.h>
#include <sys/types.h>
#ifdef WIN32
#include <direct.h>
#include <windows.h>
#endif
#define TMP_SCRIPT_BUF_LEN 4096
#define STRING_BUFFER_LENGTH 2048
#define SKIP_SPACE(p) while ( *(p) == ' ' || *(p) == '\t' ) (p)++
ScriptHandler::ScriptHandler()
{
num_of_labels = 0;
script_buffer = NULL;
kidoku_buffer = NULL;
log_info[LABEL_LOG].filename = "NScrllog.dat";
log_info[FILE_LOG].filename = "NScrflog.dat";
clickstr_list = NULL;
string_buffer = new char[STRING_BUFFER_LENGTH];
str_string_buffer = new char[STRING_BUFFER_LENGTH];
saved_string_buffer = new char[STRING_BUFFER_LENGTH];
gosub_string_buffer = new char[STRING_BUFFER_LENGTH];
variable_data = new VariableData[VARIABLE_RANGE];
extended_variable_data = NULL;
num_extended_variable_data = 0;
max_extended_variable_data = 1;
root_array_variable = NULL;
screen_size = SCREEN_SIZE_640x480;
global_variable_border = 200;
ons = NULL;
archive_path = NULL;
save_path = NULL;
savedir = NULL;
script_path = NULL;
game_identifier = NULL;
game_hash = 0;
current_cmd[0] = '\0';
current_cmd_type = gosub_cmd_type = CMD_NONE;
zenkakko_flag = false;
strict_warnings = false;
default_script = NO_SCRIPT_PREF;
preferred_script = NO_SCRIPT_PREF;
system_menu_script = NO_SCRIPT_PREF;
rgosub_wait_pos = NULL;
rgosub_wait_1byte = NULL;
total_rgosub_wait_size = num_rgosub_waits = cur_rgosub_wait = 0;
is_rgosub_click = rgosub_click_newpage = rgosub_1byte_mode = false;
rgosub_flag = false; // roto 20100205
ignore_textgosub_newline = false;
}
ScriptHandler::~ScriptHandler()
{
reset();
if ( script_buffer ) delete[] script_buffer;
if ( kidoku_buffer ) delete[] kidoku_buffer;
delete[] string_buffer;
delete[] str_string_buffer;
delete[] saved_string_buffer;
delete[] gosub_string_buffer;
delete[] variable_data;
if (script_path) delete[] script_path;
if (save_path) delete[] save_path;
if (savedir) delete[] savedir;
if (game_identifier) delete[] game_identifier;
}
void ScriptHandler::reset()
{
for (int i=0 ; i<VARIABLE_RANGE ; i++)
variable_data[i].reset(true);
if (extended_variable_data) delete[] extended_variable_data;
extended_variable_data = NULL;
num_extended_variable_data = 0;
max_extended_variable_data = 1;
ArrayVariable *av = root_array_variable;
while(av){
ArrayVariable *tmp = av;
av = av->next;
delete tmp;
}
root_array_variable = current_array_variable = NULL;
// reset log info
resetLog( log_info[LABEL_LOG] );
resetLog( log_info[FILE_LOG] );
// reset number alias
Alias *alias;
alias = root_num_alias.next;
while (alias){
Alias *tmp = alias;
alias = alias->next;
delete tmp;
};
last_num_alias = &root_num_alias;
last_num_alias->next = NULL;
// reset string alias
alias = root_str_alias.next;
while (alias){
Alias *tmp = alias;
alias = alias->next;
delete tmp;
};
last_str_alias = &root_str_alias;
last_str_alias->next = NULL;
// reset misc. variables
end_status = END_NONE;
kidokuskip_flag = false;
current_cmd[0] = '\0';
current_cmd_type = gosub_cmd_type = CMD_NONE;
zenkakko_flag = false;
linepage_flag = false;
english_mode = false;
textgosub_flag = false;
skip_enabled = false;
if (clickstr_list){
delete[] clickstr_list;
clickstr_list = NULL;
}
internal_current_script = NULL;
preferred_script = default_script;
if (rgosub_wait_pos) delete[] rgosub_wait_pos;
rgosub_wait_pos = NULL;
if (rgosub_wait_1byte) delete[] rgosub_wait_1byte;
rgosub_wait_1byte = NULL;
total_rgosub_wait_size = num_rgosub_waits = cur_rgosub_wait = 0;
is_rgosub_click = rgosub_click_newpage = rgosub_1byte_mode = false;
}
FILE *ScriptHandler::fopen( const char *path, const char *mode, const bool save, const bool usesavedir )
{
const char* root;
char *file_name;
FILE *fp = NULL;
if (usesavedir && savedir) {
root = savedir;
file_name = new char[strlen(root)+strlen(path)+1];
sprintf( file_name, "%s%s", root, path );
//printf("handler:fopen(\"%s\")\n", file_name);
fp = ::fopen( file_name, mode );
} else if (save) {
root = save_path;
file_name = new char[strlen(root)+strlen(path)+1];
sprintf( file_name, "%s%s", root, path );
//printf("handler:fopen(\"%s\")\n", file_name);
fp = ::fopen( file_name, mode );
} else {
// search within archive_path(s)
file_name = new char[archive_path->max_path_len()+strlen(path)+1];
for (int n=0; n<archive_path->get_num_paths(); n++) {
root = archive_path->get_path(n);
//printf("root: %s\n", root);
sprintf( file_name, "%s%s", root, path );
//printf("handler:fopen(\"%s\")\n", file_name);
fp = ::fopen( file_name, mode );
if (fp != NULL) break;
}
}
delete[] file_name;
return fp;
}
FILE *ScriptHandler::fopen( const char *root, const char *path, const char *mode )
{
char *file_name;
FILE *fp = NULL;
file_name = new char[strlen(root)+strlen(path)+1];
sprintf( file_name, "%s%s", root, path );
//printf("handler:fopen(\"%s\")\n", file_name);
fp = ::fopen( file_name, mode );
delete[] file_name;
return fp;
}
void ScriptHandler::setKeyTable( const unsigned char *key_table )
{
int i;
if (key_table){
key_table_flag = true;
for (i=0 ; i<256 ; i++) this->key_table[i] = key_table[i];
}
else{
key_table_flag = false;
for (i=0 ; i<256 ; i++) this->key_table[i] = i;
}
}
void ScriptHandler::setSavedir( const char *dir )
{
savedir = new char[ strlen(dir) + strlen(save_path) + 2];
sprintf( savedir, "%s%s%c", save_path, dir, DELIMITER );
mkdir(savedir
#ifndef WIN32
, 0755
#endif
);
}
// basic parser function
const char *ScriptHandler::readToken(bool check_pretext)
{
current_script = next_script;
char *buf = current_script;
end_status = END_NONE;
current_variable.type = VAR_NONE;
num_rgosub_waits = cur_rgosub_wait = 0;
current_cmd_type = CMD_NONE;
if (rgosub_flag && is_rgosub_click){
string_counter = 0;
char ch = rgosub_click_newpage ? '\\' : '@';
addStringBuffer( ch );
if (rgosub_1byte_mode)
addStringBuffer( '`' );
rgosub_wait_1byte[num_rgosub_waits] = rgosub_1byte_mode;
rgosub_wait_pos[num_rgosub_waits++] = buf;
current_cmd_type = CMD_TEXT;
if (!rgosub_1byte_mode){
SKIP_SPACE( buf );
}
} else {
SKIP_SPACE( buf );
}
markAsKidoku( buf );
readTokenTop:
if (!is_rgosub_click)
string_counter = 0;
char ch = *buf;
if ((ch == ';') && !is_rgosub_click){ // comment
while ( ch != 0x0a && ch != '\0' ){
addStringBuffer( ch );
ch = *++buf;
}
}
else if (is_rgosub_click || ch & 0x80 ||
(ch >= '0' && ch <= '9') ||
ch == '@' || ch == '\\' || ch == '/' ||
ch == '%' || ch == '?' || ch == '$' ||
ch == '[' || ch == '(' || ch == '`' ||
ch == '!' || ch == '#' || ch == ',' ||
ch == '{' || ch == '<' || ch == '>' ||
ch == '"'){ // text or pretext
//Mion: parsing pretext tags as separate tokens from text,
// which is what NScr seems to be doing
if (check_pretext && !is_rgosub_click &&
( (ch == '[') ||
(zenkakko_flag && (ch == (char)0x81) && (buf[1] == (char)0x79)) )) {
//pretext tag
current_cmd_type = CMD_PRETEXT;
if (ch != '[') ++buf; //fullwidth bracket is 2 bytes
ch = *++buf;
bool in_1byte_mode = false;
while (1){
if ((ch == 0x0a) || (ch == 0x00)) {
//Mion: NScr will actually parse until a terminating ']',
// even including newlines... probably not used by anything
// (or a good idea), so we'll stop parsing at end of line
errorAndCont( "readToken: unterminated pretext tag" );
break;
}
else if (ch == '`')
in_1byte_mode = !in_1byte_mode;
else if (!in_1byte_mode && (ch == ']')) {
++buf;
break;
}
else if (!in_1byte_mode && zenkakko_flag &&
(ch == (char)0x81) &&
(buf[1] == (char)0x7A)) {
buf += 2;
break;
}
else if ( IS_TWO_BYTE(ch) ) {
addStringBuffer( ch );
ch = *++buf;
}
addStringBuffer( ch );
ch = *++buf;
}
next_script = buf;
return string_buffer;
}
current_cmd_type = CMD_TEXT;
bool ignore_click_flag = false;
bool clickstr_flag = false;
bool is_nscr_english = (english_mode && (ch == '>'));
if (is_nscr_english)
ch = *++buf;
bool in_1byte_mode = is_nscr_english;
if (is_rgosub_click)
in_1byte_mode = rgosub_1byte_mode;
while (1){
if (rgosub_flag && (num_rgosub_waits == total_rgosub_wait_size)){
//double the rgosub wait buffer size
char **tmp = rgosub_wait_pos;
bool *tmp2 = rgosub_wait_1byte;
total_rgosub_wait_size *= 2;
rgosub_wait_pos = new char*[total_rgosub_wait_size];
rgosub_wait_1byte = new bool[total_rgosub_wait_size];
for (int i=0; i<num_rgosub_waits; i++){
rgosub_wait_pos[i] = tmp[i];
rgosub_wait_1byte[i] = tmp2[i];
}
delete[] tmp;
delete[] tmp2;
}
char *tmp = buf;
SKIP_SPACE(tmp);
if (!(is_nscr_english || in_1byte_mode) ||
(*tmp == 0x0a) || (*tmp == 0x00)) {
// always skip trailing spaces
buf = tmp;
ch = *buf;
}
if ((ch == 0x0a) || (ch == 0x00)) break;
if ( IS_TWO_BYTE(ch) ){
if (!ignore_click_flag &&
(checkClickstr(buf) > 0))
clickstr_flag = true;
else
clickstr_flag = false;
addStringBuffer( ch );
ch = *++buf;
if (ch == 0x0a || ch == '\0') break; //invalid 2-byte char
addStringBuffer( ch );
ch = *++buf;
//Mion: ons-en processes clickstr chars here in readToken,
// not in ONScripterLabel_text - adds a special
// sequence '\@' after the clickstr char
if (clickstr_flag) {
// insert a clickwait-or-newpage
addStringBuffer('\\');
addStringBuffer('@');
if (textgosub_flag) {
char *tmp = buf;
SKIP_SPACE(tmp);
// if "ignore-textgosub-newline" cmd-line option,
// ignore newline after clickwait if textgosub used
// (fixes some older onscripter-en games)
if (ignore_textgosub_newline && (*tmp == 0x0a))
buf = tmp+1;
break;
}
if (rgosub_flag){
rgosub_wait_1byte[num_rgosub_waits] = in_1byte_mode;
rgosub_wait_pos[num_rgosub_waits++] = buf+1;
}
}
ignore_click_flag = clickstr_flag = false;
}
else {
if (ch == '`'){
addStringBuffer( ch );
ch = *++buf;
if (!is_nscr_english)
in_1byte_mode = !in_1byte_mode;
}
else if (in_1byte_mode) {
if (ch == '$'){
if (buf[1] == '$') ++buf; else{
addStrVariable(&buf);
while (*--buf == ' ');
ch = *++buf;
ignore_click_flag = false;
continue;
}
}
if ((ch == '_') && (checkClickstr(buf+1) > 0)) {
ignore_click_flag = true;
ch = *++buf;
continue;
}
if ((ch == '@') || (ch == '\\')) {
if (!ignore_click_flag){
addStringBuffer( ch );
if (rgosub_flag){
rgosub_wait_1byte[num_rgosub_waits] = in_1byte_mode;
rgosub_wait_pos[num_rgosub_waits++] = buf+1;
}
}
if (textgosub_flag){
++buf;
// if "ignore-textgosub-newline", ignore
// newline after clickwait if textgosub
// (fixes older onscripter-en games)
char *tmp = buf;
SKIP_SPACE(tmp);
if (ignore_textgosub_newline &&(*tmp == 0x0a))
buf = tmp+1;
break;
}
ch = *++buf;
continue;
}
if (!ignore_click_flag && (checkClickstr(buf) > 0))
clickstr_flag = true;
else
clickstr_flag = false;
// no ruby in 1byte mode; escape parens
if (ch == '(') {
addStringBuffer( LEFT_PAREN );
} else if (ch == ')') {
addStringBuffer( RIGHT_PAREN );
} else if (ch == 0x0a || ch == '\0') break;
else
addStringBuffer( ch );
ch = *++buf;
//Mion: ons-en processes clickstr chars here in readToken,
// not in ONScripterLabel_text - adds a special
// sequence '\@' after the clickstr char
if (clickstr_flag) {
// insert a clickwait-or-newpage
addStringBuffer('\\');
addStringBuffer('@');
if (textgosub_flag) break;
if (rgosub_flag){
rgosub_wait_1byte[num_rgosub_waits] = in_1byte_mode;
rgosub_wait_pos[num_rgosub_waits++] = buf;
}
}
ignore_click_flag = clickstr_flag = false;
}
else{ //!in_1byte_mode
if ((ch == '@') || (ch == '\\')) {
if (!ignore_click_flag){
addStringBuffer( ch );
if (rgosub_flag){
rgosub_wait_1byte[num_rgosub_waits] = in_1byte_mode;
rgosub_wait_pos[num_rgosub_waits++] = buf+1;
}
}
if (textgosub_flag){
++buf;
// if "ignore-textgosub-newline", ignore
// newline after clickwait if textgosub
// (fixes older onscripter-en games)
char *tmp = buf;
SKIP_SPACE(tmp);
if (ignore_textgosub_newline &&(*tmp == 0x0a))
buf = tmp+1;
break;
}
ch = *++buf;
continue;
}
if (ch == '%' || ch == '?'){
addIntVariable(&buf);
}
else if (ch == '$'){
addStrVariable(&buf);
}
else if (ch == '<'){
addStringBuffer(TXTBTN_START);
ch = *++buf;
}
else if (ch == '>'){
addStringBuffer(TXTBTN_END);
ch = *++buf;
}
else if (ch == '{') {
// comma list of var/val pairs
buf++;
pushCurrent(buf);
next_script = buf;
TmpVariableDataLink *tmp = &tmp_variable_data_link;
while (tmp->next != NULL)
tmp = tmp->next;
while( *buf != '}' ) {
readVariable();
pushVariable();
tmp->next = new TmpVariableDataLink;
tmp = tmp->next;
tmp->vi.var_no = pushed_variable.var_no;
tmp->vi.type = pushed_variable.type;
VariableData &vd = getVariableData(tmp->vi.var_no);
tmp->num = vd.num;
//printf("variable: $%d\n", pushed_variable.var_no);
buf = next_script;
if ( tmp->vi.type & VAR_INT ) {
tmp->num = parseIntExpression(&buf);
//printf("int: %d\n", x);
} else if ( tmp->vi.type & VAR_STR ) {
bool invar_1byte_mode = false;
int tmp_count = 0;
strcpy(saved_string_buffer, "");
while (*buf != 0x0a && *buf != '\0' &&
(invar_1byte_mode || ((*buf != ',') && (*buf != '}')))) {
if (*buf == '`')
invar_1byte_mode = !invar_1byte_mode;
if ((tmp_count+1 >= STRING_BUFFER_LENGTH) ||
(IS_TWO_BYTE(*buf) && (tmp_count+2 >= STRING_BUFFER_LENGTH)))
errorAndExit("readToken: var string length exceeds 2048 bytes.");
else if (IS_TWO_BYTE(*buf)) {
saved_string_buffer[tmp_count++] = *buf++;
saved_string_buffer[tmp_count++] = *buf++;
} else if ((*buf == '\\') || (*buf == BACKSLASH)) {
//Mion: I really shouldn't be modifying
// the script buffer FIXME
saved_string_buffer[tmp_count++] = '\\';
*buf++ = BACKSLASH;
} else
saved_string_buffer[tmp_count++] = *buf++;
saved_string_buffer[tmp_count] = '\0';
}
setStr( &tmp->str, saved_string_buffer );
//printf("string: %s\n", saved_string_buffer);
}
next_script = checkComma(buf);
buf = next_script;
if (!(getEndStatus() & END_COMMA)) break;
}
end_status = END_NONE;
current_variable.type = VAR_NONE;
popCurrent();
if (*buf == '}')
buf++;
}
else{
if (ch == '_')
ignore_click_flag = true;
else
ignore_click_flag = false;
addStringBuffer( ch );
buf++;
if (*buf == ' ') {
addStringBuffer( *buf );
buf++;
}
}
ch = *buf;
if (ch == 0x0a || ch == '\0') break;
}
}
}
//now process any {} tmp variables
TmpVariableDataLink *tmp = tmp_variable_data_link.next;
while (tmp != NULL) {
if ( tmp->vi.type & VAR_INT )
setInt( &tmp->vi, tmp->num);
else if ( tmp->vi.type & VAR_STR )
setStr( &variable_data[ tmp->vi.var_no ].str, tmp->str );
TmpVariableDataLink *last = tmp;
tmp = tmp->next;
delete last;
}
tmp_variable_data_link.next = NULL;
current_cmd_type = CMD_TEXT;
}
else if ((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
ch == '_'){ // command
do{
if (ch >= 'A' && ch <= 'Z') ch += 'a' - 'A';
addStringBuffer( ch );
ch = *++buf;
}
while((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '_');
}
else if (ch == '*'){ // label
return readLabel();
}
else if ((ch == 0x0a) && !is_rgosub_click){
addStringBuffer( ch );
markAsKidoku( buf++ );
}
else if (ch == '~' || ch == ':'){
addStringBuffer( ch );
markAsKidoku( buf++ );
}
else if (ch != '\0'){
snprintf(errbuf, MAX_ERRBUF_LEN,
"readToken: skipping unknown heading character %c (%x)", ch, ch);
errorAndCont( errbuf );
buf++;
goto readTokenTop;
}
is_rgosub_click = false;
next_script = checkComma(buf);
//printf("readToken [%s] len=%d [%c(%x)] %p\n", string_buffer, strlen(string_buffer), ch, ch, next_script);
return string_buffer;
}
const char *ScriptHandler::readName()
{
// bare word - not a string variable
end_status = END_NONE;
current_variable.type = VAR_NONE;
current_script = next_script;
SKIP_SPACE( current_script );
char *buf = current_script;
string_counter = 0;
char ch = *buf;
if ( ((ch >= 'a') && (ch <= 'z')) ||
((ch >= 'A') && (ch <= 'Z')) ||
(ch == '_') ){
if ( (ch >= 'A') && (ch <= 'Z') )
ch += 'a' - 'A';
addStringBuffer( ch );
ch = *(++buf);
while( ((ch >= 'a') && (ch <= 'z')) ||
((ch >= 'A') && (ch <= 'Z')) ||
((ch >= '0') && (ch <= '9')) ||
(ch == '_') ){
if ( (ch >= 'A') && (ch <= 'Z') )
ch += 'a' - 'A';
addStringBuffer( ch );
ch = *(++buf);
}
}
addStringBuffer( '\0' );
next_script = checkComma(buf);
return string_buffer;
}
const char *ScriptHandler::readColor(bool *is_color)
{
// bare color type - not a string variable
end_status = END_NONE;
current_variable.type = VAR_NONE;
current_script = next_script;
SKIP_SPACE( current_script );
char *buf = current_script;
string_counter = 0;
addStringBuffer( '#' );
char ch = *(++buf);
int i;
for (i=0; i<7; i++) {
if ( ((ch >= '0') && (ch <= '9')) ||
((ch >= 'a') && (ch <= 'f')) ||
((ch >= 'A') && (ch <= 'F')) ) {
addStringBuffer( ch );
ch = *(++buf);
} else
break;
}
if (i!=6) {
if (is_color != NULL) {
*is_color = false;
string_counter = 0;
addStringBuffer( '\0' );
return string_buffer;
} else {
strncpy(string_buffer, current_script, 16);
string_buffer[16] = '\0';
errorAndExit( "readColor: not a valid color type." );
}
}
addStringBuffer( '\0' );
next_script = checkComma(buf);
if (is_color != NULL)
*is_color = true;
return string_buffer;
}
const char *ScriptHandler::readLabel()
{
// *NAME, "*NAME", or $VAR that equals "*NAME"
end_status = END_NONE;
current_variable.type = VAR_NONE;
current_script = next_script;
SKIP_SPACE( current_script );
char *buf = current_script;
char *tmp = NULL;
string_counter = 0;
char ch = *buf;
if ((ch == '$') || (ch == '"') || (ch == '`')){
parseStr(&buf);
tmp = buf;
string_counter = 0;
buf = str_string_buffer;
SKIP_SPACE(buf);
ch = *buf;
}
if (ch == '*') {
while (ch == '*'){
addStringBuffer( ch );
ch = *(++buf);
}
SKIP_SPACE(buf);
ch = *buf;
while( ((ch >= 'a') && (ch <= 'z')) ||
((ch >= 'A') && (ch <= 'Z')) ||
((ch >= '0') && (ch <= '9')) ||
(ch == '_') ){
if ( (ch >= 'A') && (ch <= 'Z') )
ch += 'a' - 'A';
addStringBuffer( ch );
ch = *(++buf);
}
}
addStringBuffer( '\0' );
if ( (string_buffer[0] == '\0') || (string_buffer[1] == '\0') ){
buf = current_script;
while (*buf && (*buf != 0x0a))
++buf;
ch = *buf;
*buf = '\0';
if (tmp != NULL) {
snprintf(errbuf, MAX_ERRBUF_LEN,
"Invalid label specification '%s' ('%s')",
current_script, str_string_buffer);
*buf = ch;
errorAndExit(errbuf);
} else {
snprintf(errbuf, MAX_ERRBUF_LEN,
"Invalid label specification '%s'", current_script);
*buf = ch;
errorAndExit(errbuf);
}
}
if (tmp != NULL)
buf = tmp;
next_script = checkComma(buf);
return string_buffer;
}
const char *ScriptHandler::readStr()
{
end_status = END_NONE;
current_variable.type = VAR_NONE;
current_script = next_script;
SKIP_SPACE( current_script );
char *buf = current_script;
string_buffer[0] = '\0';
string_counter = 0;
while(1){
parseStr(&buf);
buf = checkComma(buf);
string_counter += strlen(str_string_buffer);
if (string_counter+1 >= STRING_BUFFER_LENGTH)
errorAndExit("readStr: string length exceeds 2048 bytes.");
strcat(string_buffer, str_string_buffer);
if (buf[0] != '+') break;
buf++;
}
next_script = buf;
return string_buffer;
}
int ScriptHandler::readInt()
{
string_counter = 0;
string_buffer[string_counter] = '\0';
end_status = END_NONE;
current_variable.type = VAR_NONE;
current_script = next_script;
SKIP_SPACE( current_script );
char *buf = current_script;
int ret = parseIntExpression(&buf);
next_script = checkComma(buf);
return ret;
}
void ScriptHandler::skipToken()
{
SKIP_SPACE( current_script );
char *buf = current_script;
bool quote_flag = false;
bool text_flag = false;
while(1){
if ( *buf == 0x0a ||
(!quote_flag && !text_flag && (*buf == ':' || *buf == ';') ) ) break;
if ( *buf == '"' ) quote_flag = !quote_flag;
if ( IS_TWO_BYTE(*buf) ){
buf += 2;
if ( !quote_flag ) text_flag = true;
}
else
buf++;
}
if (text_flag && *buf == 0x0a) buf++;
next_script = buf;
}
// string access function
char *ScriptHandler::saveStringBuffer()
{
strcpy( saved_string_buffer, string_buffer );
return saved_string_buffer;
}
// script address direct manipulation function
void ScriptHandler::setCurrent(char *pos, bool nowarn)
{
// warn if directly setting current_script outside the script_buffer
if (!nowarn &&
( (pos < script_buffer) || (pos >= script_buffer + script_buffer_length) ))
errorAndCont( "setCurrent: outside script bounds", NULL, "Address Issue" );
current_script = next_script = pos;
}
void ScriptHandler::pushCurrent( char *pos )
{
// push to use a temporary address for quick buffer parsing
pushed_current_script = current_script;
pushed_next_script = next_script;
setCurrent(pos, true);
}
void ScriptHandler::popCurrent()
{
current_script = pushed_current_script;
next_script = pushed_next_script;
}
void ScriptHandler::enterExternalScript(char *pos)
{
internal_current_script = current_script;
internal_next_script = next_script;
setCurrent(pos);
internal_end_status = end_status;
internal_current_variable = current_variable;
internal_pushed_variable = pushed_variable;
}
void ScriptHandler::leaveExternalScript()
{
setCurrent(internal_current_script);
internal_current_script = NULL;
next_script = internal_next_script;
end_status = internal_end_status;
current_variable = internal_current_variable;
pushed_variable = internal_pushed_variable;
}
bool ScriptHandler::isExternalScript()
{
return (internal_current_script != NULL);
}
int ScriptHandler::getOffset( char *pos )
{
return pos - script_buffer;
}
char *ScriptHandler::getAddress( int offset )
{
return script_buffer + offset;
}
int ScriptHandler::getLineByAddress( char *address )
{
if ( (address < script_buffer) || (address >= script_buffer + script_buffer_length) ) {
errorAndExit( "getLineByAddress: outside script bounds", NULL, "Address Error" );
return -1; //dummy
}
LabelInfo label = getLabelByAddress( address );
char *addr = label.label_header;
int line = 0;
while ( address > addr && line < label.num_of_lines){
if ( *addr == 0x0a ) line++;
addr++;
}
return line;
}
char *ScriptHandler::getAddressByLine( int line )
{
LabelInfo label = getLabelByLine( line );
int l = line - label.start_line;
char *addr = label.label_header;
while ( l > 0 ){
while( *addr != 0x0a ) addr++;
addr++;
l--;
}
return addr;
}
ScriptHandler::LabelInfo ScriptHandler::getLabelByAddress( char *address )
{
int i;
for ( i=0 ; i<num_of_labels-1 ; i++ ){
if ( label_info[i+1].start_address > address )
return label_info[i];
}
return label_info[i];
}
ScriptHandler::LabelInfo ScriptHandler::getLabelByLine( int line )
{
int i;
for ( i=0 ; i<num_of_labels-1 ; i++ ){
if ( label_info[i+1].start_line > line )
return label_info[i];
}
if (i == num_of_labels-1) {
int num_lines = label_info[i].start_line + label_info[i].num_of_lines;
if (line >= num_lines) {
snprintf(errbuf, MAX_ERRBUF_LEN,
"getLabelByLine: line %d outside script bounds (%d lines)",
line, num_lines);
errorAndExit( errbuf, NULL, "Address Error" );
}
}
return label_info[i];