#include <stdio.h>
#include <string.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)
+char* xstrdup(const char* s)
+{
+ char* ptr = strdup(s);
+ if (ptr == NULL)
+ {
+ fprintf(stderr, "Out of memory!\n");
+ exit(EXIT_FAILURE);
+ }
+ return(ptr);
+}
+
+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[advent];
+ }
-#define PERCENT 63 /* partly hide the packed encoding */
+ // Ensure the last character is \0.
+ token[5] = '\0';
-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};
+ // Replace trailing whitespace with \0.
+ for (int i = 4; i >= 0; --i)
+ {
+ if (token[i] == ' ' || token[i] == '\t')
+ token[i] = '\0';
+ else
+ break;
+ }
+}
/* I/O routines (SPEAK, PSPEAK, RSPEAK, SETPRM, GETIN, YES) */
-void SPEAK(vocab_t msg)
-/* Print the message which starts at LINES[N]. Precede it with a blank line
- * unless game.blklin is false. */
+void newspeak(char* msg)
{
- long blank, casemake, i, nxt, neg, nparms, param, prmtyp, state;
+ // Do nothing if we got a null pointer.
+ if (msg == NULL)
+ return;
- 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;
+ // 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");
- while (LNPOSN <= LNLENG) {
- if (INLINE[LNPOSN] != PERCENT) {
- ++LNPOSN;
- continue;
+ // Create a copy of our string, so we can edit it.
+ char* copy = xstrdup(msg);
+
+ // Staging area for stringified parameters.
+ char parameters[5][100]; // FIXME: to be replaced with dynamic allocation
+
+ // Handle format specifiers (including the custom %C, %L, %S) by adjusting the parameter accordingly, and replacing the specifier with %s.
+ int pi = 0; // parameter index
+ for (int i = 0; i < strlen(msg); ++i)
+ {
+ if (msg[i] == '%')
+ {
+ ++pi;
+
+ // 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 + 1] == 'd')
+ {
+ copy[i + 1] = 's';
+ sprintf(parameters[pi], "%ld", PARMS[pi]);
}
- 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;
+
+ // Unmodified string specifier.
+ if (msg[i + 1] == 's')
+ {
+ packed_to_token(PARMS[pi], parameters[pi]);
}
- 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;
+
+ // Singular/plural specifier.
+ if (msg[i + 1] == 'S')
+ {
+ copy[i + 1] = 's';
+ if (PARMS[pi - 1] > 1) // look at the *previous* parameter (which by necessity must be numeric)
+ {
+ sprintf(parameters[pi], "%s", "s");
}
- ++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;
- }
+ else
+ {
+ sprintf(parameters[pi], "%s", "");
}
- ++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;
+ // All-lowercase specifier.
+ if (msg[i + 1] == 'L')
+ {
+ copy[i + 1] = 's';
+ packed_to_token(PARMS[pi], parameters[pi]);
+ for (int i = 0; i < strlen(parameters[pi]); ++i)
+ {
+ parameters[pi][i] = tolower(parameters[pi][i]);
+ }
}
- 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;
+
+ // First char uppercase, rest lowercase.
+ if (msg[i + 1] == 'C')
+ {
+ copy[i + 1] = 's';
+ packed_to_token(PARMS[pi], parameters[pi]);
+ for (int i = 0; i < strlen(parameters[pi]); ++i)
+ {
+ parameters[pi][i] = tolower(parameters[pi][i]);
}
- param=param/10;
+ parameters[pi][0] = toupper(parameters[pi][0]);
}
- LNPOSN += prmtyp;
- ++nparms;
- continue;
- }
+ }
+ }
- if (blank)
- TYPE0();
- blank=false;
- TYPE();
- msg = nxt + 1;
- } while
- (LINES[msg] >= 0);
+ // Render the final string.
+ char rendered[2000]; // FIXME: to be replaced with dynamic allocation
+ sprintf(rendered, copy, parameters[1], parameters[2], parameters[3], parameters[4]); // FIXME: to be replaced with vsprintf()
+
+ // Print the message.
+ printf("%s\n", rendered);
+
+ free(copy);
}
void PSPEAK(vocab_t msg,int skip)
* the index of the inventory message for object. (INVEN+N+1 message
* is game.prop=N message). */
{
- long i, m;
-
- m=PTEXT[msg];
- if (skip >= 0) {
- for (i=0; i <=skip; i++) {
- do {
- m=labs(LINES[m]);
- } while
- (LINES[m] >= 0);
- }
- }
- SPEAK(m);
+ if (skip >= 0)
+ newspeak(object_descriptions[msg].longs[skip]);
+ else
+ newspeak(object_descriptions[msg].inventory);
}
void RSPEAK(vocab_t i)
/* Print the i-th "random" message (section 6 of database). */
{
- if (i != 0)
- SPEAK(RTEXT[i]);
+ newspeak(arbitrary_messages[i]);
}
void SETPRM(long first, long p1, long p2)
return(text);
if ((!skip) || INLINE[LNPOSN] != 0)
break;
- LNPOSN=LNPOSN+1;
+ ++LNPOSN;
}
text=0;
if (LNPOSN > LNLENG || (onewrd && INLINE[LNPOSN] == 0))
continue;
char current=INLINE[LNPOSN];
- if (current < PERCENT) {
+ if (current < ascii_to_advent['%']) {
splitting = -1;
- if (upper && current >= 37)
+ if (upper && current >= ascii_to_advent['a'])
current=current-26;
text=text+current;
- LNPOSN=LNPOSN+1;
+ ++LNPOSN;
continue;
}
if (splitting != LNPOSN) {
- text=text+PERCENT;
+ text=text+ascii_to_advent['%'];
splitting = LNPOSN;
continue;
}
- text=text+current-PERCENT;
+ text=text+current-ascii_to_advent['%'];
splitting = -1;
- LNPOSN=LNPOSN+1;
+ ++LNPOSN;
}
return text;
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. */
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)
if (game.place[object] == -1)
return;
game.place[object]= -1;
- game.holdng=game.holdng+1;
+ ++game.holdng;
}
if (game.atloc[where] == object) {
game.atloc[where]=game.link[object];
bool MAPLIN(FILE *fp)
{
long i, val;
+ bool eof;
/* Read a line of input, from the specified input source,
* translate the chars to integers in the range 0-126 and store
* and is not changed thereafter unless the routines on this page choose
* to do so. */
- if (!oldstyle && fp == stdin)
- fputs("> ", stdout);
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)-1);
+ linenoiseFree(cp);
+ }
+ }
} while
- (!feof(fp) && rawbuf[0] == '#');
- if (feof(fp)) {
+ (!eof && rawbuf[0] == '#');
+ if (eof) {
if (logfp && fp == stdin)
fclose(logfp);
return false;
} else {
+ FILE *efp = NULL;
if (logfp && fp == stdin)
- IGNORE(fputs(rawbuf, logfp));
+ efp = logfp;
else if (!isatty(0))
- IGNORE(fputs(rawbuf, stdout));
+ efp = stdout;
+ if (efp != NULL)
+ {
+ if (prompt)
+ fputs("> ", efp);
+ IGNORE(fputs(rawbuf, efp));
+ }
strcpy(INLINE+1, rawbuf);
LNLENG=0;
for (i=1; i<=(long)sizeof(INLINE) && INLINE[i]!=0; i++) {
- val=INLINE[i]+1;
+ val=INLINE[i];
INLINE[i]=ascii_to_advent[val];
if (INLINE[i] != 0)
LNLENG=i;
}
for (i=1; i<=LNLENG; i++) {
- INLINE[i]=advent_to_ascii[INLINE[i]+1];
+ INLINE[i]=advent_to_ascii[INLINE[i]];
}
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;
- }
-}
-
void DATIME(long* d, long* t)
{
struct timeval tv;
*t = (long) tv.tv_usec;
}
-long MOD(long n, long m)
-{
- return(n%m);
-}
+/* end */