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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "glk/alan3/scan.h"
#include "glk/alan3/lists.h"
#include "glk/alan3/dictionary.h"
#include "glk/alan3/debug.h"
#include "glk/alan3/exe.h"
#include "glk/alan3/glkio.h"
#include "glk/alan3/inter.h"
#include "glk/alan3/literal.h"
#include "glk/alan3/memory.h"
#include "glk/alan3/msg.h"
#include "glk/alan3/options.h"
#include "glk/alan3/output.h"
#include "glk/alan3/params.h"
#include "glk/alan3/syserr.h"
#include "glk/alan3/word.h"
namespace Glk {
namespace Alan3 {
/* PUBLIC DATA */
bool continued = FALSE;
/* PRIVATE DATA */
static char buf[1000]; /* The input buffer */
static char isobuf[1000]; /* The input buffer in ISO */
static bool eol = TRUE; /* Looking at End of line? Yes, initially */
static char *token = NULL;
/*======================================================================*/
void forceNewPlayerInput() {
setEndOfArray(&playerWords[currentWordIndex]);
}
/*----------------------------------------------------------------------*/
static void unknown(CONTEXT, char tok[]) {
char *str = strdup(tok);
Parameter *messageParameters = newParameterArray();
addParameterForString(messageParameters, str);
printMessageWithParameters(M_UNKNOWN_WORD, messageParameters);
deallocate(messageParameters);
free(str);
CALL0(abortPlayerCommand)
}
/*----------------------------------------------------------------------*/
static int number(char tok[]) {
int i;
(void)sscanf(tok, "%d", &i);
return i;
}
/*----------------------------------------------------------------------*/
static int lookup(CONTEXT, char wrd[]) {
int i;
for (i = 0; !isEndOfArray(&dictionary[i]); i++) {
if (compareStrings(wrd, (char *) pointerTo(dictionary[i].string)) == 0) {
return (i);
}
}
R0CALL1(unknown, wrd)
return (int)EOD;
}
/*----------------------------------------------------------------------*/
static bool isWordCharacter(int ch) {
return isISOLetter(ch) || isdigit(ch) || ch == '\'' || ch == '-' || ch == '_';
}
/*----------------------------------------------------------------------*/
static char *gettoken(char *txtBuf) {
static char *marker;
static char oldch;
if (txtBuf == NULL)
*marker = oldch;
else
marker = txtBuf;
while (*marker != '\0' && isSpace(*marker) && *marker != '\n')
marker++;
txtBuf = marker;
if (isISOLetter(*marker))
while (*marker && isWordCharacter(*marker))
marker++;
else if (isdigit((int)*marker))
while (isdigit((int)*marker))
marker++;
else if (*marker == '\"') {
marker++;
while (*marker != '\"')
marker++;
marker++;
} else if (*marker == '\0' || *marker == '\n' || *marker == ';')
return NULL;
else
marker++;
oldch = *marker;
*marker = '\0';
return txtBuf;
}
/*----------------------------------------------------------------------*/
// TODO replace dependency to exe.c with injection of quitGame() and undo()
static void getLine(CONTEXT) {
para();
do {
CALL0(g_io->statusLine)
if (header->prompt) {
anyOutput = FALSE;
CALL1(interpret, header->prompt)
if (anyOutput)
printAndLog(" ");
needSpace = FALSE;
} else
printAndLog("> ");
bool flag;
FUNC2(g_io->readLine, flag, buf, 255);
if (!flag) {
newline();
CALL0(quitGame)
}
getPageSize();
anyOutput = FALSE;
if (transcriptOption || logOption) {
// TODO: Refactor out the logging to log.c?
g_io->glk_put_string_stream(logFile, buf);
g_io->glk_put_char_stream(logFile, '\n');
}
/* If the player input an empty command he forfeited his command */
if (strlen(buf) == 0) {
clearWordList(playerWords);
LONG_JUMP_LABEL("forfeit")
}
strcpy(isobuf, buf);
token = gettoken(isobuf);
if (token != NULL) {
if (strcmp("debug", token) == 0 && header->debug) {
debugOption = TRUE;
CALL3(debug, FALSE, 0, 0)
token = NULL;
} else if (strcmp("undo", token) == 0) {
token = gettoken(NULL);
if (token != NULL) /* More tokens? */
CALL1(error, M_WHAT)
CALL0(undo)
}
}
} while (token == NULL);
eol = FALSE;
}
/*======================================================================*/
void scan(CONTEXT) {
int i;
int w;
if (continued) {
/* Player used '.' to separate commands. Read next */
para();
token = gettoken(NULL); /* Or did he just finish the command with a full stop? */
if (token == NULL) {
CALL0(getLine)
}
continued = FALSE;
} else {
CALL0(getLine)
}
freeLiterals();
playerWords[0].code = 0; // TODO This means what?
i = 0;
do {
ensureSpaceForPlayerWords(i + 1);
playerWords[i].start = token;
playerWords[i].end = strchr(token, '\0');
if (isISOLetter(token[0])) {
FUNC1(lookup, w, token);
if (!isNoise(w))
playerWords[i++].code = w;
} else if (isdigit((int)token[0]) || token[0] == '\"') {
if (isdigit((int)token[0])) {
createIntegerLiteral(number(token));
} else {
char *unquotedString = strdup(token);
unquotedString[strlen(token) - 1] = '\0';
createStringLiteral(&unquotedString[1]);
free(unquotedString);
}
playerWords[i++].code = dictionarySize + litCount; /* Word outside dictionary = literal */
} else if (token[0] == ',') {
playerWords[i++].code = conjWord;
} else if (token[0] == '.') {
continued = TRUE;
setEndOfArray(&playerWords[i]);
eol = TRUE;
break;
} else
CALL1(unknown, token)
setEndOfArray(&playerWords[i]);
eol = (token = gettoken(NULL)) == NULL;
} while (!eol);
}
} // End of namespace Alan3
} // End of namespace Glk
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