diff options
Diffstat (limited to 'common/scriplib.c')
| -rwxr-xr-x | common/scriplib.c | 375 |
1 files changed, 375 insertions, 0 deletions
diff --git a/common/scriplib.c b/common/scriplib.c new file mode 100755 index 0000000..782a538 --- /dev/null +++ b/common/scriplib.c @@ -0,0 +1,375 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. + +This file is part of Quake III Arena source code. + +Quake III Arena source code 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. + +Quake III Arena source code 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 Foobar; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +// scriplib.c
+
+#include "cmdlib.h"
+#include "scriplib.h"
+
+/*
+=============================================================================
+
+ PARSING STUFF
+
+=============================================================================
+*/
+
+typedef struct
+{
+ char filename[1024];
+ char *buffer,*script_p,*end_p;
+ int line;
+} script_t;
+
+#define MAX_INCLUDES 8
+script_t scriptstack[MAX_INCLUDES];
+script_t *script;
+int scriptline;
+
+char token[MAXTOKEN];
+qboolean endofscript;
+qboolean tokenready; // only qtrue if UnGetToken was just called
+
+/*
+==============
+AddScriptToStack
+==============
+*/
+void AddScriptToStack( const char *filename ) {
+ int size;
+
+ script++;
+ if (script == &scriptstack[MAX_INCLUDES])
+ Error ("script file exceeded MAX_INCLUDES");
+ strcpy (script->filename, ExpandPath (filename) );
+
+ size = LoadFile (script->filename, (void **)&script->buffer);
+
+ printf ("entering %s\n", script->filename);
+
+ script->line = 1;
+
+ script->script_p = script->buffer;
+ script->end_p = script->buffer + size;
+}
+
+
+/*
+==============
+LoadScriptFile
+==============
+*/
+void LoadScriptFile( const char *filename ) {
+ script = scriptstack;
+ AddScriptToStack (filename);
+
+ endofscript = qfalse;
+ tokenready = qfalse;
+}
+
+
+/*
+==============
+ParseFromMemory
+==============
+*/
+void ParseFromMemory (char *buffer, int size)
+{
+ script = scriptstack;
+ script++;
+ if (script == &scriptstack[MAX_INCLUDES])
+ Error ("script file exceeded MAX_INCLUDES");
+ strcpy (script->filename, "memory buffer" );
+
+ script->buffer = buffer;
+ script->line = 1;
+ script->script_p = script->buffer;
+ script->end_p = script->buffer + size;
+
+ endofscript = qfalse;
+ tokenready = qfalse;
+}
+
+
+/*
+==============
+UnGetToken
+
+Signals that the current token was not used, and should be reported
+for the next GetToken. Note that
+
+GetToken (qtrue);
+UnGetToken ();
+GetToken (qfalse);
+
+could cross a line boundary.
+==============
+*/
+void UnGetToken (void)
+{
+ tokenready = qtrue;
+}
+
+
+qboolean EndOfScript (qboolean crossline)
+{
+ if (!crossline)
+ Error ("Line %i is incomplete\n",scriptline);
+
+ if (!strcmp (script->filename, "memory buffer"))
+ {
+ endofscript = qtrue;
+ return qfalse;
+ }
+
+ free (script->buffer);
+ if (script == scriptstack+1)
+ {
+ endofscript = qtrue;
+ return qfalse;
+ }
+ script--;
+ scriptline = script->line;
+ printf ("returning to %s\n", script->filename);
+ return GetToken (crossline);
+}
+
+/*
+==============
+GetToken
+==============
+*/
+qboolean GetToken (qboolean crossline)
+{
+ char *token_p;
+
+ if (tokenready) // is a token allready waiting?
+ {
+ tokenready = qfalse;
+ return qtrue;
+ }
+
+ if (script->script_p >= script->end_p)
+ return EndOfScript (crossline);
+
+//
+// skip space
+//
+skipspace:
+ while (*script->script_p <= 32)
+ {
+ if (script->script_p >= script->end_p)
+ return EndOfScript (crossline);
+ if (*script->script_p++ == '\n')
+ {
+ if (!crossline)
+ Error ("Line %i is incomplete\n",scriptline);
+ scriptline = script->line++;
+ }
+ }
+
+ if (script->script_p >= script->end_p)
+ return EndOfScript (crossline);
+
+ // ; # // comments
+ if (*script->script_p == ';' || *script->script_p == '#'
+ || ( script->script_p[0] == '/' && script->script_p[1] == '/') )
+ {
+ if (!crossline)
+ Error ("Line %i is incomplete\n",scriptline);
+ while (*script->script_p++ != '\n')
+ if (script->script_p >= script->end_p)
+ return EndOfScript (crossline);
+ scriptline = script->line++;
+ goto skipspace;
+ }
+
+ // /* */ comments
+ if (script->script_p[0] == '/' && script->script_p[1] == '*')
+ {
+ if (!crossline)
+ Error ("Line %i is incomplete\n",scriptline);
+ script->script_p+=2;
+ while (script->script_p[0] != '*' && script->script_p[1] != '/')
+ {
+ if ( *script->script_p == '\n' ) {
+ scriptline = script->line++;
+ }
+ script->script_p++;
+ if (script->script_p >= script->end_p)
+ return EndOfScript (crossline);
+ }
+ script->script_p += 2;
+ goto skipspace;
+ }
+
+//
+// copy token
+//
+ token_p = token;
+
+ if (*script->script_p == '"')
+ {
+ // quoted token
+ script->script_p++;
+ while (*script->script_p != '"')
+ {
+ *token_p++ = *script->script_p++;
+ if (script->script_p == script->end_p)
+ break;
+ if (token_p == &token[MAXTOKEN])
+ Error ("Token too large on line %i\n",scriptline);
+ }
+ script->script_p++;
+ }
+ else // regular token
+ while ( *script->script_p > 32 && *script->script_p != ';')
+ {
+ *token_p++ = *script->script_p++;
+ if (script->script_p == script->end_p)
+ break;
+ if (token_p == &token[MAXTOKEN])
+ Error ("Token too large on line %i\n",scriptline);
+ }
+
+ *token_p = 0;
+
+ if (!strcmp (token, "$include"))
+ {
+ GetToken (qfalse);
+ AddScriptToStack (token);
+ return GetToken (crossline);
+ }
+
+ return qtrue;
+}
+
+
+/*
+==============
+TokenAvailable
+
+Returns qtrue if there is another token on the line
+==============
+*/
+qboolean TokenAvailable (void) {
+ int oldLine;
+ qboolean r;
+
+ oldLine = script->line;
+ r = GetToken( qtrue );
+ if ( !r ) {
+ return qfalse;
+ }
+ UnGetToken();
+ if ( oldLine == script->line ) {
+ return qtrue;
+ }
+ return qfalse;
+}
+
+
+//=====================================================================
+
+
+void MatchToken( char *match ) {
+ GetToken( qtrue );
+
+ if ( strcmp( token, match ) ) {
+ Error( "MatchToken( \"%s\" ) failed at line %i", match, scriptline );
+ }
+}
+
+
+void Parse1DMatrix (int x, vec_t *m) {
+ int i;
+
+ MatchToken( "(" );
+
+ for (i = 0 ; i < x ; i++) {
+ GetToken( qfalse );
+ m[i] = atof(token);
+ }
+
+ MatchToken( ")" );
+}
+
+void Parse2DMatrix (int y, int x, vec_t *m) {
+ int i;
+
+ MatchToken( "(" );
+
+ for (i = 0 ; i < y ; i++) {
+ Parse1DMatrix (x, m + i * x);
+ }
+
+ MatchToken( ")" );
+}
+
+void Parse3DMatrix (int z, int y, int x, vec_t *m) {
+ int i;
+
+ MatchToken( "(" );
+
+ for (i = 0 ; i < z ; i++) {
+ Parse2DMatrix (y, x, m + i * x*y);
+ }
+
+ MatchToken( ")" );
+}
+
+
+void Write1DMatrix (FILE *f, int x, vec_t *m) {
+ int i;
+
+ fprintf (f, "( ");
+ for (i = 0 ; i < x ; i++) {
+ if (m[i] == (int)m[i] ) {
+ fprintf (f, "%i ", (int)m[i]);
+ } else {
+ fprintf (f, "%f ", m[i]);
+ }
+ }
+ fprintf (f, ")");
+}
+
+void Write2DMatrix (FILE *f, int y, int x, vec_t *m) {
+ int i;
+
+ fprintf (f, "( ");
+ for (i = 0 ; i < y ; i++) {
+ Write1DMatrix (f, x, m + i*x);
+ fprintf (f, " ");
+ }
+ fprintf (f, ")\n");
+}
+
+
+void Write3DMatrix (FILE *f, int z, int y, int x, vec_t *m) {
+ int i;
+
+ fprintf (f, "(\n");
+ for (i = 0 ; i < z ; i++) {
+ Write2DMatrix (f, y, x, m + i*(x*y) );
+ }
+ fprintf (f, ")\n");
+}
+
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