2 * pgntags.c -- Functions to manage PGN tags
4 * Copyright 1995, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free
5 * Software Foundation, Inc.
7 * Enhancements Copyright 2005 Alessandro Scotti
9 * ------------------------------------------------------------------------
11 * GNU XBoard is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or (at
14 * your option) any later version.
16 * GNU XBoard is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see http://www.gnu.org/licenses/. *
24 * ------------------------------------------------------------------------
26 * This file could well be a part of backend.c, but I prefer it this
38 #else /* not STDC_HEADERS */
41 # else /* not HAVE_STRING_H */
43 # endif /* not HAVE_STRING_H */
44 #endif /* not STDC_HEADERS */
52 /* Parse PGN tags; returns 0 for success or error number
55 ParsePGNTag (char *tag, GameInfo *gameInfo)
57 char *name, *value, *p, *oldTags;
62 while (!isalpha(*name) && !isdigit(*name)) {
66 while (*p != ' ' && *p != '\t' && *p != '\n') {
70 value = strchr(p + 1, '"') + 1;
71 p = strrchr(value, '"');
74 if (StrCaseCmp(name, "Event") == 0) {
75 success = StrSavePtr(value, &gameInfo->event) != NULL;
76 } else if (StrCaseCmp(name, "Site") == 0) {
77 success = StrSavePtr(value, &gameInfo->site) != NULL;
78 } else if (StrCaseCmp(name, "Date") == 0) {
79 success = StrSavePtr(value, &gameInfo->date) != NULL;
80 } else if (StrCaseCmp(name, "Round") == 0) {
81 success = StrSavePtr(value, &gameInfo->round) != NULL;
82 } else if (StrCaseCmp(name, "White") == 0) {
83 success = StrSavePtr(value, &gameInfo->white) != NULL;
84 } else if (StrCaseCmp(name, "Black") == 0) {
85 success = StrSavePtr(value, &gameInfo->black) != NULL;
87 /* Fold together the various ways of denoting White/Black rating */
88 else if ((StrCaseCmp(name, "WhiteElo")==0) ||
89 (StrCaseCmp(name, "WhiteUSCF")==0) ) {
91 gameInfo->whiteRating = atoi( value );
92 } else if ((StrCaseCmp(name, "BlackElo")==0) ||
93 (StrCaseCmp(name, "BlackUSCF")==0)) {
95 gameInfo->blackRating = atoi( value );
97 else if (StrCaseCmp(name, "Result") == 0) {
98 if (strcmp(value, "1-0") == 0)
99 gameInfo->result = WhiteWins;
100 else if (strcmp(value, "0-1") == 0)
101 gameInfo->result = BlackWins;
102 else if (strcmp(value, "1/2-1/2") == 0)
103 gameInfo->result = GameIsDrawn;
105 gameInfo->result = GameUnfinished;
107 } else if (StrCaseCmp(name, "TimeControl") == 0) {
108 // int tc, mps, inc = -1;
109 // if(sscanf(value, "%d/%d", &mps, &tc) == 2 || )
110 success = StrSavePtr(value, &gameInfo->timeControl) != NULL;
111 } else if (StrCaseCmp(name, "FEN") == 0) {
112 success = StrSavePtr(value, &gameInfo->fen) != NULL;
113 } else if (StrCaseCmp(name, "SetUp") == 0) {
114 /* ignore on input; presence of FEN governs */
116 } else if (StrCaseCmp(name, "Variant") == 0) {
117 /* xboard-defined extension */
118 success = StrSavePtr(value, &gameInfo->variantName) != NULL;
119 if(*value && strcmp(value, engineVariant)) // keep current engine-defined variant if it matches
120 gameInfo->variant = StringToVariant(value);
121 } else if (StrCaseCmp(name, "VariantMen") == 0) {
122 /* for now ignore this tag, as we have no method yet */
123 /* for assigning the pieces to XBoard pictograms */
125 } else if (StrCaseCmp(name, PGN_OUT_OF_BOOK) == 0) {
126 /* [AS] Out of book annotation */
127 success = StrSavePtr(value, &gameInfo->outOfBook) != NULL;
129 if (gameInfo->extraTags == NULL) {
132 oldTags = gameInfo->extraTags;
134 /* Buffer size includes 7 bytes of space for [ ""]\n\0 */
135 len = strlen(oldTags) + strlen(value) + strlen(name) + 7;
136 if ((p = (char *) malloc(len)) != NULL) {
137 sprintf(p, "%s[%s \"%s\"]\n", oldTags, name, value);
138 if (gameInfo->extraTags != NULL) free(gameInfo->extraTags);
139 gameInfo->extraTags = p;
145 return(success ? 0 : ENOMEM);
149 /* Print game info */
151 PrintPGNTags (FILE *fp, GameInfo *gameInfo)
154 fprintf(fp, "[Event \"%s\"]\n", gameInfo->event ? gameInfo->event : "?");
155 fprintf(fp, "[Site \"%s\"]\n", gameInfo->site ? gameInfo->site : "?");
156 fprintf(fp, "[Date \"%s\"]\n", gameInfo->date ? gameInfo->date : "?");
157 fprintf(fp, "[Round \"%s\"]\n", gameInfo->round ? gameInfo->round : "-");
158 fprintf(fp, "[White \"%s\"]\n", gameInfo->white ? gameInfo->white : "?");
159 fprintf(fp, "[Black \"%s\"]\n", gameInfo->black ? gameInfo->black : "?");
160 fprintf(fp, "[Result \"%s\"]\n", PGNResult(gameInfo->result));
161 if (gameInfo->whiteRating >= 0)
162 fprintf(fp, "[WhiteElo \"%d\"]\n", gameInfo->whiteRating);
163 if (gameInfo->blackRating >= 0)
164 fprintf(fp, "[BlackElo \"%d\"]\n", gameInfo->blackRating);
165 if (gameInfo->timeControl)
166 fprintf(fp, "[TimeControl \"%s\"]\n", gameInfo->timeControl);
167 if (gameInfo->variant != VariantNormal)
168 fprintf(fp, "[Variant \"%s\"]\n", VariantName(gameInfo->variant));
169 if (*(p = CollectPieceDescriptors()))
170 fprintf(fp, "[VariantMen \"%s\"]\n", p);
171 if (gameInfo->extraTags)
172 fputs(gameInfo->extraTags, fp);
176 /* Return a non-static buffer with a games info.
179 PGNTags (GameInfo *gameInfo)
185 // First calculate the needed buffer size.
186 // Then we don't have to check the buffer size later.
187 len = 12 + 11 + 11 + 12 + 12 + 12 + 25 + 1; // The first 7 tags
188 if (gameInfo->event) len += strlen(gameInfo->event);
189 if (gameInfo->site) len += strlen(gameInfo->site);
190 if (gameInfo->date) len += strlen(gameInfo->date);
191 if (gameInfo->round) len += strlen(gameInfo->round);
192 if (gameInfo->white) len += strlen(gameInfo->white);
193 if (gameInfo->black) len += strlen(gameInfo->black);
194 if (gameInfo->whiteRating >= 0) len += 40;
195 if (gameInfo->blackRating >= 0) len += 40;
196 if (gameInfo->timeControl) len += strlen(gameInfo->timeControl) + 20;
197 if (gameInfo->variant != VariantNormal) len += 50;
198 if (gameInfo->extraTags) len += strlen(gameInfo->extraTags);
205 p += sprintf(p, "[Event \"%s\"]\n", gameInfo->event ? gameInfo->event : "?");
206 p += sprintf(p, "[Site \"%s\"]\n", gameInfo->site ? gameInfo->site : "?");
207 p += sprintf(p, "[Date \"%s\"]\n", gameInfo->date ? gameInfo->date : "?");
208 p += sprintf(p, "[Round \"%s\"]\n", gameInfo->round ? gameInfo->round : "-");
209 p += sprintf(p, "[White \"%s\"]\n", gameInfo->white ? gameInfo->white : "?");
210 p += sprintf(p, "[Black \"%s\"]\n", gameInfo->black ? gameInfo->black : "?");
211 p += sprintf(p, "[Result \"%s\"]\n", PGNResult(gameInfo->result));
212 if (gameInfo->whiteRating >= 0)
213 p += sprintf(p, "[WhiteElo \"%d\"]\n", gameInfo->whiteRating);
214 if (gameInfo->blackRating >= 0)
215 p += sprintf(p, "[BlackElo \"%d\"]\n", gameInfo->blackRating);
216 if (gameInfo->timeControl)
217 p += sprintf(p, "[TimeControl \"%s\"]\n", gameInfo->timeControl);
218 if (gameInfo->variant != VariantNormal)
219 p += sprintf(p, "[Variant \"%s\"]\n", VariantName(gameInfo->variant));
220 if (gameInfo->extraTags)
221 strcpy(p, gameInfo->extraTags);
226 /* Returns pointer to a static string with a result.
229 PGNResult (ChessMove result)
244 /* Returns 0 for success, nonzero for error */
246 ReplaceTags (char *tags, GameInfo *gameInfo)
251 ClearGameInfo(gameInfo);
255 moveType = (ChessMove) Myylex();
256 if (moveType == (ChessMove) 0) {
258 } else if (moveType == PGNTag) {
259 err = ParsePGNTag(yy_text, gameInfo);
260 if (err != 0) return err;
263 /* just one problem...if there is a result in the new tags,
264 * DisplayMove() won't ever show it because ClearGameInfo() set
265 * gameInfo->resultDetails to NULL. So we must plug something in if there
268 if (gameInfo->result != GameUnfinished) {
269 if (gameInfo->resultDetails) free(gameInfo->resultDetails);
270 gameInfo->resultDetails = strdup("");