#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#include <stdarg.h>
#include <sys/time.h>
+#include <ctype.h>
#include "advent.h"
#include "database.h"
#include "linenoise/linenoise.h"
+#include "newdb.h"
-/* hack to ignore GCC Unused Result */
-#define IGNORE(r) do{if (r){}}while(0)
+void* xmalloc(size_t size)
+{
+ void* ptr = malloc(size);
+ if (ptr == NULL) {
+ fprintf(stderr, "Out of memory!\n");
+ exit(EXIT_FAILURE);
+ }
+ return (ptr);
+}
-#define PERCENT 63 /* partly hide the packed encoding */
+char* xstrdup(const char* s)
+{
+ char* ptr = strdup(s);
+ if (ptr == NULL) {
+ fprintf(stderr, "Out of memory!\n");
+ exit(EXIT_FAILURE);
+ }
+ return (ptr);
+}
-const char advent_to_ascii[] = {0, 32, 33, 34, 39, 40, 41, 42, 43, 44, 45, 46, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 37, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 35, 36, 38, 47, 58, 59, 60, 61, 62, 63, 64, 91, 92, 93, 94, 95, 96, 123, 124, 125, 126, 0};
-/* Rendered from the now-gone MPINIT() function */
-const char ascii_to_advent[] = {0, 74, 75, 76, 77, 78, 79, 80, 81, 82, 0, 0, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 0, 1, 2, 106, 107, 63, 108, 3, 4, 5, 6, 7, 8, 9, 10, 109, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 110, 111, 112, 113, 114, 115, 116, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 117, 118, 119, 120, 121, 122, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 123, 124, 125, 126, 83};
+void packed_to_token(long packed, char token[6])
+{
+ // Unpack and map back to ASCII.
+ for (int i = 0; i < 5; ++i) {
+ char advent = (packed >> i * 6) & 63;
+ token[4 - i] = advent_to_ascii[(int) advent];
+ }
-/* I/O routines (SPEAK, PSPEAK, RSPEAK, SETPRM, GETIN, YES) */
+ // Ensure the last character is \0.
+ token[5] = '\0';
-void SPEAK(vocab_t msg)
-/* Print the message which starts at LINES[N]. Precede it with a blank line
- * unless game.blklin is false. */
+ // Replace trailing whitespace with \0.
+ for (int i = 4; i >= 0; --i) {
+ if (token[i] == ' ' || token[i] == '\t')
+ token[i] = '\0';
+ else
+ break;
+ }
+}
+
+void token_to_packed(char token[6], long* packed)
{
- long blank, casemake, i, nxt, neg, nparms, param, prmtyp, state;
+ *packed = 0;
+ for (size_t i = 0; i < 5; ++i)
+ {
+ if (token[4 - i] == '\0')
+ continue;
+ char mapped = ascii_to_advent[(int) token[4 - i]];
+ *packed |= (mapped << (6 * i));
+ }
+}
- if (msg == 0)
- return;
- blank=game.blklin;
- nparms=1;
- do {
- nxt=labs(LINES[msg])-1;
- msg=msg+1;
- LNLENG=0;
- LNPOSN=1;
- state=0;
- for (i = msg; i <= nxt; i++) {
- PUTTXT(LINES[i],&state,2);
- }
- LNPOSN=0;
- ++LNPOSN;
-
- while (LNPOSN <= LNLENG) {
- if (INLINE[LNPOSN] != PERCENT) {
- ++LNPOSN;
- continue;
- }
- prmtyp = INLINE[LNPOSN+1];
- /* A "%"; the next character determine the type of
- * parameter: 1 (!) = suppress message completely, 29 (S) = NULL
- * If PARAM=1, else 'S' (optional plural ending), 33 (W) = word
- * (two 30-bit values) with trailing spaces suppressed, 22 (L) or
- * 31 (U) = word but map to lower/upper case, 13 (C) = word in
- * lower case with first letter capitalised, 30 (T) = text ending
- * with a word of -1, 65-73 (1-9) = number using that many
- * characters, 12 (B) = variable number of blanks. */
- if (prmtyp == 1)
- return;
- if (prmtyp == 29) {
- SHFTXT(LNPOSN+2,-1);
- INLINE[LNPOSN] = 55;
- if (PARMS[nparms] == 1)
- SHFTXT(LNPOSN+1,-1);
- ++nparms;
- continue;
- }
- if (prmtyp == 30) {
- SHFTXT(LNPOSN+2,-2);
- state=0;
- casemake=2;
-
- while (PARMS[nparms] > 0) {
- if (PARMS[nparms+1] < 0)
- casemake=0;
- PUTTXT(PARMS[nparms],&state,casemake);
- nparms=nparms+1;
- }
- ++nparms;
- continue;
- }
- if (prmtyp == 12) {
- prmtyp=PARMS[nparms];
- SHFTXT(LNPOSN+2,prmtyp-2);
- if (prmtyp != 0) {
- for (i=1; i<=prmtyp; i++) {
- INLINE[LNPOSN]=0;
- ++LNPOSN;
- }
- }
- ++nparms;
- continue;
- }
- if (prmtyp == 33 || prmtyp == 22 || prmtyp == 31 || prmtyp == 13) {
- SHFTXT(LNPOSN+2,-2);
- state = 0;
- casemake = -1;
- if (prmtyp == 31)
- casemake=1;
- if (prmtyp == 33)
- casemake=0;
- i = LNPOSN;
- PUTTXT(PARMS[nparms],&state,casemake);
- PUTTXT(PARMS[nparms+1],&state,casemake);
- if (prmtyp == 13 && INLINE[i] >= 37 && INLINE[i] <= 62)
- INLINE[i] -= 26;
- nparms += 2;
- continue;
- }
-
- prmtyp=prmtyp-64;
- if (prmtyp < 1 || prmtyp > 9) {
- ++LNPOSN;
- continue;
- }
- SHFTXT(LNPOSN+2,prmtyp-2);
- LNPOSN += prmtyp;
- param=labs(PARMS[nparms]);
- neg=0;
- if (PARMS[nparms] < 0)
- neg=9;
- for (i=1; i <= prmtyp; i++) {
- --LNPOSN;
- INLINE[LNPOSN]=MOD(param,10)+64;
- if (i != 1 && param == 0) {
- INLINE[LNPOSN]=neg;
- neg=0;
- }
- param=param/10;
- }
- LNPOSN += prmtyp;
- ++nparms;
- continue;
- }
+/* Hide the fact that wods are corrently packed longs */
- if (blank)
- TYPE0();
- blank=false;
- TYPE();
- msg = nxt + 1;
- } while
- (LINES[msg] >= 0);
+bool wordeq(token_t a, token_t b)
+{
+ return a == b;
}
-void PSPEAK(vocab_t msg,int skip)
-/* Find the skip+1st message from msg and print it. msg should be
- * the index of the inventory message for object. (INVEN+N+1 message
- * is game.prop=N message). */
+bool wordempty(token_t a)
{
- long i, m;
+ return a == 0;
+}
- m=PTEXT[msg];
- if (skip >= 0) {
- for (i=0; i <=skip; i++) {
- do {
- m=labs(LINES[m]);
- } while
- (LINES[m] >= 0);
- }
+void wordclear(token_t *v)
+{
+ *v = 0;
+}
+
+/* I/O routines (speak, pspeak, rspeak, GETIN, YES) */
+
+void vspeak(const char* msg, va_list ap)
+{
+ // Do nothing if we got a null pointer.
+ if (msg == NULL)
+ return;
+
+ // Do nothing if we got an empty string.
+ if (strlen(msg) == 0)
+ return;
+
+ // Print a newline if the global game.blklin says to.
+ if (game.blklin == true)
+ printf("\n");
+
+ int msglen = strlen(msg);
+
+ // Rendered string
+ ssize_t size = 2000; /* msglen > 50 ? msglen*2 : 100; */
+ char* rendered = xmalloc(size);
+ char* renderp = rendered;
+
+ // Handle format specifiers (including the custom %C, %L, %S) by adjusting the parameter accordingly, and replacing the specifier with %s.
+ long previous_arg = 0;
+ for (int i = 0; i < msglen; i++) {
+ if (msg[i] != '%') {
+ *renderp++ = msg[i];
+ size--;
+ } else {
+ long arg = va_arg(ap, long);
+ i++;
+ // Integer specifier. In order to accommodate the fact that PARMS can have both legitimate integers *and* packed tokens, stringify everything. Future work may eliminate the need for this.
+ if (msg[i] == 'd') {
+ int ret = snprintf(renderp, size, "%ld", arg);
+ if (ret < size) {
+ renderp += ret;
+ size -= ret;
+ }
+ }
+
+ // Unmodified string specifier.
+ if (msg[i] == 's') {
+ packed_to_token(arg, renderp); /* unpack directly to destination */
+ size_t len = strlen(renderp);
+ renderp += len;
+ size -= len;
+ }
+
+ // Singular/plural specifier.
+ if (msg[i] == 'S') {
+ if (previous_arg > 1) { // look at the *previous* parameter (which by necessity must be numeric)
+ *renderp++ = 's';
+ size--;
+ }
+ }
+
+ // All-lowercase specifier.
+ if (msg[i] == 'L' || msg[i] == 'C') {
+ packed_to_token(arg, renderp); /* unpack directly to destination */
+ int len = strlen(renderp);
+ for (int j = 0; j < len; ++j) {
+ renderp[j] = tolower(renderp[j]);
+ }
+ if (msg[i] == 'C') // First char uppercase, rest lowercase.
+ renderp[0] = toupper(renderp[0]);
+ renderp += len;
+ size -= len;
+ }
+
+ previous_arg = arg;
+ }
}
- SPEAK(m);
+ *renderp = 0;
+
+ // Print the message.
+ printf("%s\n", rendered);
+
+ free(rendered);
}
-void RSPEAK(vocab_t i)
-/* Print the i-th "random" message (section 6 of database). */
+void speak(const char* msg, ...)
{
- if (i != 0)
- SPEAK(RTEXT[i]);
+ va_list ap;
+ va_start(ap, msg);
+ vspeak(msg, ap);
+ va_end(ap);
}
-void SETPRM(long first, long p1, long p2)
-/* Stores parameters into the PRMCOM parms array for use by speak. P1 and P2
- * are stored into PARMS(first) and PARMS(first+1). */
+void pspeak(vocab_t msg, int skip, ...)
+/* Find the skip+1st message from msg and print it. msg should be
+ * the index of the inventory message for object. (INVEN+N+1 message
+ * is game.prop=N message). */
{
- if (first >= MAXPARMS)
- BUG(29);
- else {
- PARMS[first] = p1;
- PARMS[first+1] = p2;
- }
+ va_list ap;
+ va_start(ap, skip);
+ if (skip >= 0)
+ vspeak(object_descriptions[msg].longs[skip], ap);
+ else
+ vspeak(object_descriptions[msg].inventory, ap);
+ va_end(ap);
+}
+
+void rspeak(vocab_t i, ...)
+/* Print the i-th "random" message (section 6 of database). */
+{
+ va_list ap;
+ va_start(ap, i);
+ vspeak(arbitrary_messages[i], ap);
+ va_end(ap);
}
bool GETIN(FILE *input,
- long *pword1, long *pword1x,
- long *pword2, long *pword2x)
+ long *pword1, long *pword1x,
+ long *pword2, long *pword2x)
/* Get a command from the adventurer. Snarf out the first word, pad it with
* blanks, and return it in WORD1. Chars 6 thru 10 are returned in WORD1X, in
* case we need to print out the whole word in an error message. Any number of
long junk;
for (;;) {
- if (game.blklin)
- TYPE0();
- if (!MAPLIN(input))
- return false;
- *pword1=GETTXT(true,true,true);
- if (game.blklin && *pword1 < 0)
- continue;
- *pword1x=GETTXT(false,true,true);
- do {
- junk=GETTXT(false,true,true);
- } while
- (junk > 0);
- *pword2=GETTXT(true,true,true);
- *pword2x=GETTXT(false,true,true);
- do {
- junk=GETTXT(false,true,true);
- } while
- (junk > 0);
- if (GETTXT(true,true,true) <= 0)
- return true;
- RSPEAK(53);
+ if (game.blklin)
+ fputc('\n', stdout);;
+ if (!MAPLIN(input))
+ return false;
+ *pword1 = GETTXT(true, true, true);
+ if (game.blklin && *pword1 < 0)
+ continue;
+ *pword1x = GETTXT(false, true, true);
+ do {
+ junk = GETTXT(false, true, true);
+ } while
+ (junk > 0);
+ *pword2 = GETTXT(true, true, true);
+ *pword2x = GETTXT(false, true, true);
+ do {
+ junk = GETTXT(false, true, true);
+ } while
+ (junk > 0);
+ if (GETTXT(true, true, true) <= 0)
+ return true;
+ rspeak(TWO_WORDS);
+ }
+}
+
+void echo_input(FILE* destination, char* input_prompt, char* input)
+{
+ size_t len = strlen(input_prompt) + strlen(input) + 1;
+ char* prompt_and_input = (char*) xmalloc(len);
+ strcpy(prompt_and_input, input_prompt);
+ strcat(prompt_and_input, input);
+ fprintf(destination, "%s\n", prompt_and_input);
+ free(prompt_and_input);
+}
+
+char* get_input()
+{
+ // Set up the prompt
+ char input_prompt[] = "> ";
+ if (!prompt)
+ input_prompt[0] = '\0';
+
+ // Print a blank line if game.blklin tells us to.
+ if (game.blklin == true)
+ printf("\n");
+
+ char* input;
+ while (true) {
+ if (editline)
+ input = linenoise(input_prompt);
+ else {
+ input = NULL;
+ size_t n = 0;
+ if (isatty(0))
+ printf("%s", input_prompt);
+ IGNORE(getline(&input, &n, stdin));
+ }
+
+ if (input == NULL) // Got EOF; return with it.
+ return(input);
+ else if (input[0] == '#') // Ignore comments.
+ continue;
+ else // We have a 'normal' line; leave the loop.
+ break;
}
+
+ // Strip trailing newlines from the input
+ input[strcspn(input, "\n")] = 0;
+
+ linenoiseHistoryAdd(input);
+
+ if (!isatty(0))
+ echo_input(stdout, input_prompt, input);
+
+ if (logfp)
+ echo_input(logfp, input_prompt, input);
+
+ return (input);
}
-long YES(FILE *input, vocab_t x, vocab_t y, vocab_t z)
+bool YES(const char* question, const char* yes_response, const char* no_response)
/* Print message X, wait for yes/no answer. If yes, print Y and return true;
* if no, print Z and return false. */
{
- token_t reply, junk1, junk2, junk3;
+ char* reply;
+ bool outcome;
for (;;) {
- RSPEAK(x);
- GETIN(input, &reply, &junk1, &junk2, &junk3);
- if (reply == MAKEWD(250519) || reply == MAKEWD(25)) {
- RSPEAK(y);
- return true;
- }
- if (reply == MAKEWD(1415) || reply == MAKEWD(14)) {
- RSPEAK(z);
- return false;
+ speak(question);
+
+ reply = get_input();
+ if (reply == NULL) {
+ linenoiseFree(reply);
+ exit(EXIT_SUCCESS);
}
- RSPEAK(185);
+
+ char* firstword = (char*) xmalloc(strlen(reply)+1);
+ sscanf(reply, "%s", firstword);
+
+ for (int i = 0; i < (int)strlen(firstword); ++i)
+ firstword[i] = tolower(firstword[i]);
+
+ int yes = strncmp("yes", firstword, sizeof("yes") - 1);
+ int y = strncmp("y", firstword, sizeof("y") - 1);
+ int no = strncmp("no", firstword, sizeof("no") - 1);
+ int n = strncmp("n", firstword, sizeof("n") - 1);
+
+ free(firstword);
+
+ if (yes == 0 || y == 0) {
+ speak(yes_response);
+ outcome = true;
+ break;
+ } else if (no == 0 || n == 0) {
+ speak(no_response);
+ outcome = false;
+ break;
+ } else
+ rspeak(PLEASE_ANSWER);
}
+ linenoiseFree(reply);
+ return (outcome);
}
-/* Line-parsing routines (GETTXT, MAKEWD, PUTTXT, SHFTXT, TYPE0) */
+/* Line-parsing routines (GETTXT, MAKEWD, PUTTXT, SHFTXT) */
long GETTXT(bool skip, bool onewrd, bool upper)
/* Take characters from an input line and pack them into 30-bit words.
static long splitting = -1;
if (LNPOSN != splitting)
- splitting = -1;
- text= -1;
+ splitting = -1;
+ text = -1;
while (true) {
- if (LNPOSN > LNLENG)
- return(text);
- if ((!skip) || INLINE[LNPOSN] != 0)
- break;
- LNPOSN=LNPOSN+1;
+ if (LNPOSN > LNLENG)
+ return (text);
+ if ((!skip) || INLINE[LNPOSN] != 0)
+ break;
+ ++LNPOSN;
}
- text=0;
- for (int I=1; I<=TOKLEN; I++) {
- text=text*64;
- if (LNPOSN > LNLENG || (onewrd && INLINE[LNPOSN] == 0))
- continue;
- char current=INLINE[LNPOSN];
- if (current < PERCENT) {
- splitting = -1;
- if (upper && current >= 37)
- current=current-26;
- text=text+current;
- LNPOSN=LNPOSN+1;
- continue;
- }
- if (splitting != LNPOSN) {
- text=text+PERCENT;
- splitting = LNPOSN;
- continue;
- }
-
- text=text+current-PERCENT;
- splitting = -1;
- LNPOSN=LNPOSN+1;
+ text = 0;
+ for (int I = 1; I <= TOKLEN; I++) {
+ text = text * 64;
+ if (LNPOSN > LNLENG || (onewrd && INLINE[LNPOSN] == 0))
+ continue;
+ char current = INLINE[LNPOSN];
+ if (current < ascii_to_advent['%']) {
+ splitting = -1;
+ if (upper && current >= ascii_to_advent['a'])
+ current = current - 26;
+ text = text + current;
+ ++LNPOSN;
+ continue;
+ }
+ if (splitting != LNPOSN) {
+ text = text + ascii_to_advent['%'];
+ splitting = LNPOSN;
+ continue;
+ }
+
+ text = text + current - ascii_to_advent['%'];
+ splitting = -1;
+ ++LNPOSN;
}
return text;
{
long i = 1, word = 0;
- for (long k=letters; k != 0; k=k/100) {
- word=word+i*(MOD(k,50)+10);
- i=i*64;
- if (MOD(k,100) > 50)word=word+i*5;
+ for (long k = letters; k != 0; k = k / 100) {
+ word = word + i * (MOD(k, 50) + 10);
+ i = i * 64;
+ if (MOD(k, 100) > 50)word = word + i * 5;
}
- i=64L*64L*64L*64L*64L/i;
- word=word*i;
+ i = 64L * 64L * 64L * 64L * 64L / i;
+ word = word * i;
return word;
}
-void PUTTXT(token_t word, long *state, long casemake)
-/* Unpack the 30-bit value in word to obtain up to TOKLEN (currently
- * 5) integer-encoded chars, and store them in inline starting at
- * LNPOSN. If LNLENG>=LNPOSN, shift existing characters to the right
- * to make room. STATE will be zero when puttxt is called with the
- * first of a sequence of words, but is thereafter unchanged by the
- * caller, so PUTTXT can use it to maintain state across calls.
- * LNPOSN and LNLENG are incremented by the number of chars stored.
- * If CASEMAKE=1, all letters are made uppercase; if -1, lowercase; if 0,
- * as is. any other value for case is the same as 0 but also causes
- * trailing blanks to be included (in anticipation of subsequent
- * additional text). */
-{
- long alph1, alph2, byte, div, i, w;
-
- alph1=13*casemake+24;
- alph2=26*labs(casemake)+alph1;
- if (labs(casemake) > 1)
- alph1=alph2;
- /* alph1&2 define range of wrong-case chars, 11-36 or 37-62 or empty. */
- div=64L*64L*64L*64L;
- w=word;
- for (i=1; i<=TOKLEN; i++)
- {
- if (w <= 0 && *state == 0 && labs(casemake) <= 1)
- return;
- byte=w/div;
- w=(w-byte*div)*64;
- if (!(*state != 0 || byte != PERCENT)) {
- *state=PERCENT;
- continue;
- }
- SHFTXT(LNPOSN,1);
- *state=*state+byte;
- if (*state < alph2 && *state >= alph1)*state=*state-26*casemake;
- INLINE[LNPOSN]=*state;
- LNPOSN=LNPOSN+1;
- *state=0;
- }
-}
-#define PUTTXT(WORD,STATE,CASE) fPUTTXT(WORD,&STATE,CASE)
-
-void SHFTXT(long from, long delta)
-/* Move INLINE(N) to INLINE(N+DELTA) for N=FROM,LNLENG. Delta can be
- * negative. LNLENG is updated; LNPOSN is not changed. */
-{
- long I, k, j;
-
- if (!(LNLENG < from || delta == 0)) {
- for (I=from; I<=LNLENG; I++) {
- k=I;
- if (delta > 0)
- k=from+LNLENG-I;
- j=k+delta;
- INLINE[j]=INLINE[k];
- }
- }
- LNLENG=LNLENG+delta;
-}
-
-void TYPE0(void)
-/* Type a blank line. This procedure is provided as a convenience for callers
- * who otherwise have no use for MAPCOM. */
-{
- long temp;
-
- temp=LNLENG;
- LNLENG=0;
- TYPE();
- LNLENG=temp;
- return;
-}
-
-/* Suspend/resume I/O routines (SAVWDS, SAVARR, SAVWRD) */
-
-void fSAVWDS(long *W1, long *W2, long *W3, long *W4,
- long *W5, long *W6, long *W7)
-/* Write or read 7 variables. See SAVWRD. */
-{
- SAVWRD(0,(*W1));
- SAVWRD(0,(*W2));
- SAVWRD(0,(*W3));
- SAVWRD(0,(*W4));
- SAVWRD(0,(*W5));
- SAVWRD(0,(*W6));
- SAVWRD(0,(*W7));
-}
-
-void fSAVARR(long arr[], long n)
-/* Write or read an array of n words. See SAVWRD. */
-{
- long i;
-
- for (i=1; i<=n; i++) {
- SAVWRD(0,arr[i]);
- }
- return;
-}
-
-void fSAVWRD(long op, long *pword)
-/* If OP<0, start writing a file, using word to initialise encryption; save
- * word in the file. If OP>0, start reading a file; read the file to find
- * the value with which to decrypt the rest. In either case, if a file is
- * already open, finish writing/reading it and don't start a new one. If OP=0,
- * read/write a single word. Words are buffered in case that makes for more
- * efficient disk use. We also compute a simple checksum to catch elementary
- * poking within the saved file. When we finish reading/writing the file,
- * we store zero into *PWORD if there's no checksum error, else nonzero. */
-{
- static long buf[250], cksum = 0, h1, hash = 0, n = 0, state = 0;
-
- if (op != 0)
- {
- long ifvar = state;
- switch (ifvar<0 ? -1 : (ifvar>0 ? 1 : 0))
- {
- case -1:
- case 1:
- if (n == 250)SAVEIO(1,state > 0,buf);
- n=MOD(n,250)+1;
- if (state <= 0) {
- n--; buf[n]=cksum; n++;
- SAVEIO(1,false,buf);
- }
- n--; *pword=buf[n]-cksum; n++;
- SAVEIO(-1,state > 0,buf);
- state=0;
- break;
- case 0: /* FIXME: Huh? should be impossible */
- state=op;
- SAVEIO(0,state > 0,buf);
- n=1;
- if (state <= 0) {
- hash=MOD(*pword,1048576L);
- buf[0]=1234L*5678L-hash;
- }
- SAVEIO(1,true,buf);
- hash=MOD(1234L*5678L-buf[0],1048576L);
- cksum=buf[0];
- return;
- }
- }
- if (state == 0)
- return;
- if (n == 250)
- SAVEIO(1,state > 0,buf);
- n=MOD(n,250)+1;
- h1=MOD(hash*1093L+221573L,1048576L);
- hash=MOD(h1*1093L+221573L,1048576L);
- h1=MOD(h1,1234)*765432+MOD(hash,123);
- n--;
- if (state > 0)
- *pword=buf[n]+h1;
- buf[n]=*pword-h1;
- n++;
- cksum=MOD(cksum*13+*pword,1000000000L);
-}
-
/* Data structure routines */
-long VOCAB(long id, long init)
+long VOCAB(long id, long init)
/* Look up ID in the vocabulary (ATAB) and return its "definition" (KTAB), or
* -1 if not found. If INIT is positive, this is an initialisation call setting
* up a keyword variable, and not finding it constitutes a bug. It also means
* (Thus "STEPS", which is a motion verb as well as an object, may be located
* as an object.) And it also means the KTAB value is taken modulo 1000. */
{
- long i, lexeme;
-
- for (i=1; i<=TABSIZ; i++) {
- if (KTAB[i] == -1) {
- lexeme= -1;
- if (init < 0)
- return(lexeme);
- BUG(5);
- }
- if (init >= 0 && KTAB[i]/1000 != init)
- continue;
- if (ATAB[i] == id) {
- lexeme=KTAB[i];
- if (init >= 0)
- lexeme=MOD(lexeme,1000);
- return(lexeme);
- }
+ long lexeme;
+
+ for (long i = 1; i <= TABSIZ; i++) {
+ if (KTAB[i] == -1) {
+ lexeme = -1;
+ if (init < 0)
+ return (lexeme);
+ BUG(REQUIRED_VOCABULARY_WORD_NOT_FOUND);
+ }
+ if (init >= 0 && KTAB[i] / 1000 != init)
+ continue;
+ if (ATAB[i] == id) {
+ lexeme = KTAB[i];
+ if (init >= 0)
+ lexeme = MOD(lexeme, 1000);
+ return (lexeme);
+ }
}
- BUG(21);
-}
-
-void DSTROY(long object)
-/* Permanently eliminate "object" by moving to a non-existent location. */
-{
- MOVE(object,0);
+ BUG(RAN_OFF_END_OF_VOCABULARY_TABLE);
}
void JUGGLE(long object)
{
long i, j;
- i=game.place[object];
- j=game.fixed[object];
- MOVE(object,i);
- MOVE(object+NOBJECTS,j);
+ i = game.place[object];
+ j = game.fixed[object];
+ MOVE(object, i);
+ MOVE(object + NOBJECTS, j);
}
void MOVE(long object, long where)
{
long from;
- if (object > NOBJECTS)
- from=game.fixed[object-NOBJECTS];
+ if (object > NOBJECTS)
+ from = game.fixed[object - NOBJECTS];
else
- from=game.place[object];
- if (from > 0 && from <= 300)
- CARRY(object,from);
- DROP(object,where);
+ from = game.place[object];
+ if (from != LOC_NOWHERE && from != CARRIED && !SPECIAL(from))
+ CARRY(object, from);
+ DROP(object, where);
}
long PUT(long object, long where, long pval)
/* PUT is the same as MOVE, except it returns a value used to set up the
* negated game.prop values for the repository objects. */
{
- MOVE(object,where);
- return (-1)-pval;;
+ MOVE(object, where);
+ return (-1) - pval;;
}
-void CARRY(long object, long where)
+void CARRY(long object, long where)
/* Start toting an object, removing it from the list of things at its former
* location. Incr holdng unless it was already being toted. If object>NOBJECTS
* (moving "fixed" second loc), don't change game.place or game.holdng. */
long temp;
if (object <= NOBJECTS) {
- if (game.place[object] == -1)
- return;
- game.place[object]= -1;
- game.holdng=game.holdng+1;
+ if (game.place[object] == CARRIED)
+ return;
+ game.place[object] = CARRIED;
+ ++game.holdng;
}
if (game.atloc[where] == object) {
- game.atloc[where]=game.link[object];
- return;
+ game.atloc[where] = game.link[object];
+ return;
}
- temp=game.atloc[where];
+ temp = game.atloc[where];
while (game.link[temp] != object) {
- temp=game.link[temp];
+ temp = game.link[temp];
}
- game.link[temp]=game.link[object];
+ game.link[temp] = game.link[object];
}
void DROP(long object, long where)
* game.holdng if the object was being toted. */
{
if (object > NOBJECTS)
- game.fixed[object-NOBJECTS] = where;
- else
- {
- if (game.place[object] == -1)
- --game.holdng;
- game.place[object] = where;
+ game.fixed[object - NOBJECTS] = where;
+ else {
+ if (game.place[object] == CARRIED)
+ --game.holdng;
+ game.place[object] = where;
}
if (where <= 0)
- return;
+ return;
game.link[object] = game.atloc[where];
game.atloc[where] = object;
}
* there (or if dwarves not active yet), -1 if all dwarves are dead. Ignore
* the pirate (6th dwarf). */
{
- long at, i;
+ long at;
- at =0;
+ at = 0;
if (game.dflag < 2)
- return(at);
+ return (at);
at = -1;
- for (i=1; i<=NDWARVES-1; i++) {
- if (game.dloc[i] == where)
- return i;
- if (game.dloc[i] != 0)
- at=0;
+ for (long i = 1; i <= NDWARVES - 1; i++) {
+ if (game.dloc[i] == where)
+ return i;
+ if (game.dloc[i] != 0)
+ at = 0;
}
- return(at);
+ return (at);
}
/* Utility routines (SETBIT, TSTBIT, set_seed, get_next_lcg_value,
- * randrange, RNDVOC, BUG) */
+ * randrange, RNDVOC) */
long SETBIT(long bit)
/* Returns 2**bit for use in constructing bit-masks. */
{
- return(1 << bit);
+ return (1 << bit);
}
bool TSTBIT(long mask, int bit)
void set_seed(long seedval)
/* Set the LCG seed */
{
- lcgstate.x = (unsigned long) seedval % lcgstate.m;
+ game.lcg_x = (unsigned long) seedval % game.lcg_m;
}
unsigned long get_next_lcg_value(void)
/* Return the LCG's current value, and then iterate it. */
{
- unsigned long old_x = lcgstate.x;
- lcgstate.x = (lcgstate.a * lcgstate.x + lcgstate.c) % lcgstate.m;
+ unsigned long old_x = game.lcg_x;
+ game.lcg_x = (game.lcg_a * game.lcg_x + game.lcg_c) % game.lcg_m;
return old_x;
}
long randrange(long range)
/* Return a random integer from [0, range). */
{
- return range * get_next_lcg_value() / lcgstate.m;
+ return range * get_next_lcg_value() / game.lcg_m;
}
long RNDVOC(long second, long force)
long rnd = force;
if (rnd == 0) {
- for (int i = 1; i <= 5; i++) {
- long j = 11 + randrange(26);
- if (i == 2)
- j = second;
- rnd = rnd * 64 + j;
- }
+ for (int i = 1; i <= 5; i++) {
+ long j = 11 + randrange(26);
+ if (i == 2)
+ j = second;
+ rnd = rnd * 64 + j;
+ }
}
long div = 64L * 64L * 64L;
for (int i = 1; i <= TABSIZ; i++) {
- if (MOD(ATAB[i]/div, 64L) == second)
- {
- ATAB[i] = rnd;
- break;
- }
+ if (MOD(ATAB[i] / div, 64L) == second) {
+ ATAB[i] = rnd;
+ break;
+ }
}
return rnd;
}
-void BUG(long num)
-/* The following conditions are currently considered fatal bugs. Numbers < 20
- * are detected while reading the database; the others occur at "run time".
- * 0 Message line > 70 characters
- * 1 Null line in message
- * 2 Too many words of messages
- * 3 Too many travel options
- * 4 Too many vocabulary words
- * 5 Required vocabulary word not found
- * 6 Too many RTEXT messages
- * 7 Too many hints
- * 8 Location has cond bit being set twice
- * 9 Invalid section number in database
- * 10 Too many locations
- * 11 Too many class or turn messages
- * 20 Special travel (500>L>300) exceeds goto list
- * 21 Ran off end of vocabulary table
- * 22 Vocabulary type (N/1000) not between 0 and 3
- * 23 Intransitive action verb exceeds goto list
- * 24 Transitive action verb exceeds goto list
- * 25 Conditional travel entry with no alternative
- * 26 Location has no travel entries
- * 27 Hint number exceeds goto list
- * 28 Invalid month returned by date function
- * 29 Too many parameters given to SETPRM */
-{
-
- printf("Fatal error %ld. See source code for interpretation.\n", num);
- exit(0);
-}
-
-/* Machine dependent routines (MAPLIN, TYPE, SAVEIO) */
+
+/* Machine dependent routines (MAPLIN, SAVEIO) */
bool MAPLIN(FILE *fp)
{
- long i, val;
-
- /* Read a line of input, from the specified input source,
- * translate the chars to integers in the range 0-126 and store
- * them in the common array "INLINE". Integer values are as follows:
- * 0 = space [ASCII CODE 40 octal, 32 decimal]
- * 1-2 = !" [ASCII 41-42 octal, 33-34 decimal]
- * 3-10 = '()*+,-. [ASCII 47-56 octal, 39-46 decimal]
- * 11-36 = upper-case letters
- * 37-62 = lower-case letters
- * 63 = percent (%) [ASCII 45 octal, 37 decimal]
- * 64-73 = digits, 0 through 9
- * Remaining characters can be translated any way that is convenient;
- * The "TYPE" routine below is used to map them back to characters when
- * necessary. The above mappings are required so that certain special
- * characters are known to fit in 6 bits and/or can be easily spotted.
- * Array elements beyond the end of the line should be filled with 0,
- * and LNLENG should be set to the index of the last character.
+ bool eof;
+
+ /* Read a line of input, from the specified input source.
+ * This logic is complicated partly because it has to serve
+ * several cases with different requirements and partly because
+ * of a quirk in linenoise().
*
- * If the data file uses a character other than space (e.g., tab) to
- * separate numbers, that character should also translate to 0.
+ * The quirk shows up when you paste a test log from the clipboard
+ * to the program's command prompt. While fgets (as expected)
+ * consumes it a line at a time, linenoise() returns the first
+ * line and discards the rest. Thus, there needs to be an
+ * editline (-s) option to fall back to fgets while still
+ * prompting. Note that linenoise does behave properly when
+ * fed redirected stdin.
*
- * This procedure may use the map1,map2 arrays to maintain static data for
- * the mapping. MAP2(1) is set to 0 when the program starts
- * and is not changed thereafter unless the routines on this page choose
- * to do so. */
-
- if (!oldstyle && fp == stdin)
- fputs("> ", stdout);
+ * The logging is a bit of a mess because there are two distinct cases
+ * in which you want to echo commands. One is when shipping them to
+ * a log under the -l option, in which case you want to suppress
+ * prompt generation (so test logs are unadorned command sequences).
+ * On the other hand, if you redirected stdin and are feeding the program
+ * a logfile, you *do* want prompt generation - it makes checkfiles
+ * easier to read when the commands are marked by a preceding prompt.
+ */
do {
- IGNORE(fgets(rawbuf,sizeof(rawbuf)-1,fp));
+ if (!editline) {
+ if (prompt)
+ fputs("> ", stdout);
+ IGNORE(fgets(rawbuf, sizeof(rawbuf) - 1, fp));
+ eof = (feof(fp));
+ } else {
+ char *cp = linenoise("> ");
+ eof = (cp == NULL);
+ if (!eof) {
+ strncpy(rawbuf, cp, sizeof(rawbuf) - 1);
+ linenoiseHistoryAdd(rawbuf);
+ strncat(rawbuf, "\n", sizeof(rawbuf) - strlen(rawbuf) - 1);
+ linenoiseFree(cp);
+ }
+ }
} while
- (!feof(fp) && rawbuf[0] == '#');
- if (feof(fp)) {
- if (logfp && fp == stdin)
- fclose(logfp);
- return false;
+ (!eof && rawbuf[0] == '#');
+ if (eof) {
+ if (logfp && fp == stdin)
+ fclose(logfp);
+ return false;
} else {
- if (logfp && fp == stdin)
- IGNORE(fputs(rawbuf, logfp));
- else if (!isatty(0))
- IGNORE(fputs(rawbuf, stdout));
- strcpy(INLINE+1, rawbuf);
- LNLENG=0;
- for (i=1; i<=(long)sizeof(INLINE) && INLINE[i]!=0; i++) {
- val=INLINE[i]+1;
- INLINE[i]=ascii_to_advent[val];
- if (INLINE[i] != 0)
- LNLENG=i;
- }
- LNPOSN=1;
- return true;
- }
-}
-
-void TYPE(void)
-/* Type the first "LNLENG" characters stored in inline, mapping them
- * from integers to text per the rules described above. INLINE
- * may be changed by this routine. */
-{
- long i;
-
- if (LNLENG == 0) {
- printf("\n");
- return;
- }
-
- for (i=1; i<=LNLENG; i++) {
- INLINE[i]=advent_to_ascii[INLINE[i]+1];
- }
- INLINE[LNLENG+1]=0;
- printf("%s\n", INLINE+1);
- return;
-}
-
-void fSAVEIO(long op, long in, long arr[])
-/* If OP=0, ask for a file name and open a file. (If IN=true, the file is for
- * input, else output.) If OP>0, read/write ARR from/into the previously-opened
- * file. (ARR is a 250-integer array.) If OP<0, finish reading/writing the
- * file. (Finishing writing can be a no-op if a "stop" statement does it
- * automatically. Finishing reading can be a no-op as long as a subsequent
- * SAVEIO(0,false,X) will still work.) */
-{
- static FILE *fp = NULL;
- char* name;
-
- switch (op < 0 ? -1 : (op > 0 ? 1 : 0))
- {
- case -1:
- fclose(fp);
- break;
- case 0:
- while (fp == NULL) {
- name = linenoise("File name: ");
- fp = fopen(name,(in ? READ_MODE : WRITE_MODE));
- if (fp == NULL)
- printf("Can't open file %s, try again.\n", name);
- }
- linenoiseFree(name);
- break;
- case 1:
- if (in)
- IGNORE(fread(arr,sizeof(long),250,fp));
- else
- IGNORE(fwrite(arr,sizeof(long),250,fp));
- break;
+ FILE *efp = NULL;
+ if (logfp && fp == stdin)
+ efp = logfp;
+ else if (!isatty(0))
+ efp = stdout;
+ if (efp != NULL) {
+ if (prompt && efp == stdout)
+ fputs("> ", efp);
+ IGNORE(fputs(rawbuf, efp));
+ }
+ strcpy(INLINE + 1, rawbuf);
+ /* translate the chars to integers in the range 0-126 and store
+ * them in the common array "INLINE". Integer values are as follows:
+ * 0 = space [ASCII CODE 40 octal, 32 decimal]
+ * 1-2 = !" [ASCII 41-42 octal, 33-34 decimal]
+ * 3-10 = '()*+,-. [ASCII 47-56 octal, 39-46 decimal]
+ * 11-36 = upper-case letters
+ * 37-62 = lower-case letters
+ * 63 = percent (%) [ASCII 45 octal, 37 decimal]
+ * 64-73 = digits, 0 through 9
+ * Remaining characters can be translated any way that is convenient;
+ * The above mappings are required so that certain special
+ * characters are known to fit in 6 bits and/or can be easily spotted.
+ * Array elements beyond the end of the line should be filled with 0,
+ * and LNLENG should be set to the index of the last character.
+ *
+ * If the data file uses a character other than space (e.g., tab) to
+ * separate numbers, that character should also translate to 0.
+ *
+ * This procedure may use the map1,map2 arrays to maintain
+ * static data for he mapping. MAP2(1) is set to 0 when the
+ * program starts and is not changed thereafter unless the
+ * routines in this module choose to do so. */
+ LNLENG = 0;
+ for (long i = 1; i <= (long)sizeof(INLINE) && INLINE[i] != 0; i++) {
+ long val = INLINE[i];
+ INLINE[i] = ascii_to_advent[val];
+ if (INLINE[i] != 0)
+ LNLENG = i;
+ }
+ LNPOSN = 1;
+ return true;
}
}
*t = (long) tv.tv_usec;
}
-long MOD(long n, long m)
+void bug(enum bugtype num, const char *error_string)
{
- return(n%m);
+ fprintf(stderr, "Fatal error %d, %s.\n", num, error_string);
+ exit(EXIT_FAILURE);
}
+
+/* end */
projects / open-adventure.git / blobdiff