-/*
- * The dungeon compiler. Turns adventure.text into a set of C initializers
- * defining invariant state.
- */
-
-/* Current limits:
- * 12600 words of message text (LINES, LINSIZ).
- * 330 vocabulary words (KTAB, ATAB, TABSIZ).
- * There are also limits which cannot be exceeded due to the structure of
- * the database. (E.G., The vocabulary uses n/1000 to determine word type,
- * so there can't be more than 1000 words.) These upper limits are:
- * 1000 non-synonymous vocabulary words
- * 300 locations
- * 100 objects
- */
-
-/* Description of the database format
- *
- *
- * The data file contains several sections. Each begins with a line containing
- * a number identifying the section, and ends with a line containing "-1".
- *
- * Section 4: Vocabulary. Each line contains a number (n), a tab, and a
- * five-letter word. Call M=N/1000. If M=0, then the word is a motion
- * verb for use in travelling (see section 3). Else, if M=1, the word is
- * an object. Else, if M=2, the word is an action verb (such as "carry"
- * or "attack"). Else, if M=3, the word is a special case verb (such as
- * "dig") and N % 1000 is an index into section 6. Objects from 50 to
- * (currently, anyway) 79 are considered treasures (for pirate, closeout).
- * Section 0: End of database.
- *
- * Other sections are obsolete and ignored */
-
-#define LINESIZE 100
-#define LINSIZ 12600
-#define TABSIZ 330
-#define VRBSIZ 35
-#define TOKLEN 5
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <string.h>
-#include "newdb.h"
-#include "common.h"
-
-// Global variables for use in functions below that can gradually disappear as code is cleaned up
-static long LNLENG;
-static long LNPOSN;
-static char INLINE[LINESIZE + 1];
-static long OLDLOC;
-static long LINUSE;
-
-// Storage for what comes out of the database
-long TABNDX;
-long LINES[LINSIZ + 1];
-long KTAB[TABSIZ + 1];
-long ATAB[TABSIZ + 1];
-
-static long GETTXT(long SKIP, long ONEWRD, long UPPER)
-{
- /* Take characters from an input line and pack them into 30-bit words.
- * Skip says to skip leading blanks. ONEWRD says stop if we come to a
- * blank. UPPER says to map all letters to uppercase. If we reach the
- * end of the line, the word is filled up with blanks (which encode as 0's).
- * If we're already at end of line when GETTXT is called, we return -1. */
-
- long TEXT;
- static long SPLITTING = -1;
-
- if (LNPOSN != SPLITTING)
- SPLITTING = -1;
- TEXT = -1;
- while (true) {
- if (LNPOSN > LNLENG)
- return (TEXT);
- if ((!SKIP) || INLINE[LNPOSN] != 0)
- break;
- 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 < 63) {
- SPLITTING = -1;
- if (UPPER && current >= 37)
- current = current - 26;
- TEXT = TEXT + current;
- LNPOSN = LNPOSN + 1;
- continue;
- }
- if (SPLITTING != LNPOSN) {
- TEXT = TEXT + 63;
- SPLITTING = LNPOSN;
- continue;
- }
-
- TEXT = TEXT + current - 63;
- SPLITTING = -1;
- LNPOSN = LNPOSN + 1;
- }
-
- return (TEXT);
-}
-
-static void MAPLIN(FILE *OPENED)
-{
- /* 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.
- *
- * 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
- * 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. */
-
- do {
- if (NULL == fgets(INLINE + 1, sizeof(INLINE) - 1, OPENED)) {
- printf("Failed fgets()\n");
- }
- } while (!feof(OPENED) && INLINE[1] == '#');
-
- LNLENG = 0;
- for (size_t i = 1; i < sizeof(INLINE) && INLINE[i] != 0; ++i) {
- char val = INLINE[i];
- INLINE[i] = ascii_to_advent[(unsigned)val];
- if (INLINE[i] != 0)
- LNLENG = i;
- }
- LNPOSN = 1;
-}
-
-static long GETNUM(FILE *source)
-{
- /* Obtain the next integer from an input line. If K>0, we first read a
- * new input line from a file; if K<0, we read a line from the keyboard;
- * if K=0 we use a line that has already been read (and perhaps partially
- * scanned). If we're at the end of the line or encounter an illegal
- * character (not a digit, hyphen, or blank), we return 0. */
-
- long GETNUM, sign;
-
- if (source != NULL) MAPLIN(source);
- GETNUM = 0;
-
- while (INLINE[LNPOSN] == 0) {
- if (LNPOSN > LNLENG) return (GETNUM);
- ++LNPOSN;
- }
-
- if (INLINE[LNPOSN] != 9) {
- sign = 1;
- } else {
- sign = -1;
- LNPOSN = LNPOSN + 1;
- }
- while (!(LNPOSN > LNLENG || INLINE[LNPOSN] == 0)) {
- long DIGIT = INLINE[LNPOSN] - 64;
- if (DIGIT < 0 || DIGIT > 9) {
- GETNUM = 0;
- break;
- }
- GETNUM = GETNUM * 10 + DIGIT;
- LNPOSN = LNPOSN + 1;
- }
-
- GETNUM = GETNUM * sign;
- LNPOSN = LNPOSN + 1;
- return (GETNUM);
-}
-
-/* Sections 1, 2, 5, 6, 10, 14. Skip these, they're all in YAML now. */
-static void read_messages(FILE* database)
-{
- while (true) {
- do {
- if (NULL == fgets(INLINE + 1, sizeof(INLINE) - 1, database)) {
- printf("Failed fgets()\n");
- }
- } while (!feof(database) && INLINE[1] == '#');
- if (strncmp(INLINE + 1, "-1\n", 3) == 0)
- break;
- }
-}
-
-/* The stuff for section 3 is encoded here. Each "from-location" gets a
- * contiguous section of the "travel" array. Each entry in travel is
- * newloc*1000 + KEYWORD (from section 4, motion verbs), and is negated if
- * this is the last entry for this location. KEY(N) is the index in travel
- * of the first option at location N. */
-static void read_section3_stuff(FILE* database)
-{
- long loc;
- while ((loc = GETNUM(database)) != -1) {
- /* Now done from YAML */
- }
-}
-
-/* Here we read in the vocabulary. KTAB(N) is the word number, ATAB(N) is
- * the corresponding word. The -1 at the end of section 4 is left in KTAB
- * as an end-marker. */
-static void read_vocabulary(FILE* database)
-{
- for (TABNDX = 1; TABNDX <= TABSIZ; TABNDX++) {
- KTAB[TABNDX] = GETNUM(database);
- if (KTAB[TABNDX] == -1) return;
- ATAB[TABNDX] = GETTXT(true, true, true);
- } /* end loop */
- BUG(TOO_MANY_VOCABULARY_WORDS);
-}
-
-/* Read in the initial locations for each object. Also the immovability info.
- * plac contains initial locations of objects. FIXD is -1 for immovable
- * objects (including the snake), or = second loc for two-placed objects. */
-static void read_initial_locations(FILE* database)
-{
- long OBJ;
- while ((OBJ = GETNUM(database)) != -1) {
- /* all done from YAML now */
- }
-}
-
-/* Read default message numbers for action verbs. */
-static void read_action_verb_message_nr(FILE* database)
-{
- long verb;
- while ((verb = GETNUM(database)) != -1) {
- /* now declared in YAML */
- }
-}
-
-/* Read info about available liquids and other conditions. */
-static void read_conditions(FILE* database)
-{
- long K;
- while ((K = GETNUM(database)) != -1) {
- long loc;
- while ((loc = GETNUM(NULL)) != 0) {
- continue; /* COND is no longer used */
- }
- }
-}
-
-
-/* Read data for hints. */
-static void read_hints(FILE* database)
-{
- long K;
- while ((K = GETNUM(database)) != -1) {
- for (int I = 1; I <= 4; I++) {
- /* consume - actual array-building now done in YAML. */
- GETNUM(NULL);
- } /* end loop */
- }
-}
-
-/* Read the sound/text info */
-static void read_sound_text(FILE* database)
-{
- long K;
- while ((K = GETNUM(database)) != -1) {
- /* this stuff is in YAML now */
- }
-}
-
-
-static int read_database(FILE* database)
-{
- /* Clear out the various text-pointer arrays. All text is stored
- * in array lines; each line is preceded by a word pointing to
- * the next pointer (i.e. the word following the end of the
- * line). The pointer is negative if this is first line of a
- * message. The text-pointer arrays contain indices of
- * pointer-words in lines. PTEXT(N) points to
- * message for game.prop(N)=0. Successive prop messages are
- * found by chasing pointers. */
-
- LINUSE = 1;
-
- /* Start new data section. Sect is the section number. */
-
- while (true) {
- long sect = GETNUM(database);
- OLDLOC = -1;
- switch (sect) {
- case 0:
- return (0);
- case 1:
- read_messages(database);
- break;
- case 2:
- read_messages(database);
- break;
- case 3:
- read_section3_stuff(database);
- break;
- case 4:
- read_vocabulary(database);
- break;
- case 5:
- read_messages(database);
- break;
- case 6:
- read_messages(database);
- break;
- case 7:
- read_initial_locations(database);
- break;
- case 8:
- read_action_verb_message_nr(database);
- break;
- case 9:
- read_conditions(database);
- break;
- case 10:
- read_messages(database);
- break;
- case 11:
- read_hints(database);
- break;
- case 12:
- break;
- case 13:
- read_sound_text(database);
- break;
- case 14:
- read_messages(database);
- break;
- default:
- BUG(INVALID_SECTION_NUMBER_IN_DATABASE);
- }
- }
-}
-
-/* Finish constructing internal data format */
-
-/* Having read in the database, certain things are now constructed.
- * game.propS are set to zero. The PLAC and FIXD arrays are used
- * to set up game.atloc(N) as the first object at location N, and
- * game.link(OBJ) as the next object at the same location as OBJ.
- * (OBJ>NOBJECTS indicates that game.fixed(OBJ-NOBJECTS)=LOC; game.link(OBJ) is
- * still the correct link to use.) game.abbrev is zeroed; it controls
- * whether the abbreviated description is printed. Counts modulo 5
- * unless "LOOK" is used. */
-
-static void write_1d(FILE* header_file, long array[], long dim, const char* varname)
-{
- fprintf(header_file, "LOCATION long %s[] INITIALIZE(= {\n", varname);
- for (int i = 0; i < dim; ++i) {
- if (i % 10 == 0) {
- if (i > 0)
- fprintf(header_file, "\n");
- fprintf(header_file, " ");
- }
- fprintf(header_file, "%ld, ", array[i]);
- }
- fprintf(header_file, "\n});\n");
-}
-
-static void write_file(FILE* header_file)
-{
- fprintf(header_file, "#ifndef DATABASE_H\n");
- fprintf(header_file, "#define DATABASE_H\n");
- fprintf(header_file, "\n");
-
- fprintf(header_file, "#include \"common.h\"\n");
- fprintf(header_file, "#define TABSIZ 330\n");
- fprintf(header_file, "#define TOKLEN %d\n", TOKLEN);
- fprintf(header_file, "\n");
-
- fprintf(header_file, "\n");
- fprintf(header_file, "#ifdef DEFINE_GLOBALS_FROM_INCLUDES\n");
- fprintf(header_file, "#define LOCATION\n");
- fprintf(header_file, "#define INITIALIZE(...) __VA_ARGS__\n");
- fprintf(header_file, "#else\n");
- fprintf(header_file, "#define LOCATION extern\n");
- fprintf(header_file, "#define INITIALIZE(...)\n");
- fprintf(header_file, "#endif\n");
- fprintf(header_file, "\n");
-
- // content variables
- write_1d(header_file, KTAB, TABSIZ + 1, "KTAB");
- write_1d(header_file, ATAB, TABSIZ + 1, "ATAB");
-
- fprintf(header_file, "#undef LOCATION\n");
- fprintf(header_file, "#undef INITIALIZE\n");
- fprintf(header_file, "#endif\n");
-}
-
-void bug(enum bugtype num, const char *error_string)
-{
- fprintf(stderr, "Fatal error %d, %s.\n", num, error_string);
- exit(EXIT_FAILURE);
-}
-
-int main(void)
-{
- FILE* database = fopen("adventure.text", "r");
- read_database(database);
- fclose(database);
-
- FILE* header_file = fopen("database.h", "w");
- write_file(header_file);
- fclose(header_file);
-
- return (EXIT_SUCCESS);
-}