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author | Paul Gilbert | 2019-06-25 21:18:44 -0700 |
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committer | Paul Gilbert | 2019-07-06 15:27:07 -0700 |
commit | cd7cf4141425e3e77b164d2dbcbae8de1eacb035 (patch) | |
tree | 97caacd0a7e26488844ada4e7cd529cae482526a /engines/glk/alan3/syntax.cpp | |
parent | cfd66173bad8bb23ba7ba2d531fc5e98872212ce (diff) | |
download | scummvm-rg350-cd7cf4141425e3e77b164d2dbcbae8de1eacb035.tar.gz scummvm-rg350-cd7cf4141425e3e77b164d2dbcbae8de1eacb035.tar.bz2 scummvm-rg350-cd7cf4141425e3e77b164d2dbcbae8de1eacb035.zip |
GLK: ALAN3: Initial files commit
Diffstat (limited to 'engines/glk/alan3/syntax.cpp')
-rw-r--r-- | engines/glk/alan3/syntax.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/engines/glk/alan3/syntax.cpp b/engines/glk/alan3/syntax.cpp new file mode 100644 index 0000000000..6edb1cecd3 --- /dev/null +++ b/engines/glk/alan3/syntax.cpp @@ -0,0 +1,95 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program 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. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "glk/alan3/syntax.h" +#include "glk/alan3/word.h" +#include "glk/alan3/msg.h" +#include "glk/alan3/lists.h" +#include "glk/alan3/compatibility.h" + +namespace Glk { +namespace Alan3 { + +/* PUBLIC DATA */ +SyntaxEntry *stxs; /* Syntax table pointer */ + + +/* PRIVATE TYPES & DATA */ + + +/*+++++++++++++++++++++++++++++++++++++++++++++++++++*/ + +/*======================================================================*/ +ElementEntry *elementTreeOf(SyntaxEntry *stx) { + return (ElementEntry *) pointerTo(stx->elms); +} + + +/*----------------------------------------------------------------------*/ +static SyntaxEntry *findSyntaxEntryForPreBeta2(int verbCode, SyntaxEntry *foundStx) { + SyntaxEntryPreBeta2 *stx; + for (stx = (SyntaxEntryPreBeta2*)stxs; !isEndOfArray(stx); stx++) + if (stx->code == verbCode) { + foundStx = (SyntaxEntry *)stx; + break; + } + return(foundStx); +} + + +/*----------------------------------------------------------------------*/ +static SyntaxEntry *findSyntaxEntry(int verbCode) { + SyntaxEntry *stx; + for (stx = stxs; !isEndOfArray(stx); stx++) + if (stx->code == verbCode) { + return stx; + break; + } + return NULL; +} + + +/*======================================================================*/ +SyntaxEntry *findSyntaxTreeForVerb(int verbCode) { + SyntaxEntry *foundStx = NULL; + if (isPreBeta2(header->version)) { + foundStx = findSyntaxEntryForPreBeta2(verbCode, foundStx); + } else { + foundStx = findSyntaxEntry(verbCode); + } + if (foundStx == NULL) + /* No matching syntax */ + error(M_WHAT); + return foundStx; +} + + +/*======================================================================*/ +char *parameterNameInSyntax(int syntaxNumber, int parameterNumber) { + Aaddr adr = addressAfterTable(header->parameterMapAddress, sizeof(ParameterMapEntry)); + Aaddr *syntaxParameterNameTable = (Aaddr *)pointerTo(memory[adr]); + Aaddr *parameterNameTable = (Aaddr *)pointerTo(syntaxParameterNameTable[syntaxNumber-1]); + return stringAt(parameterNameTable[parameterNumber-1]); +} + +} // End of namespace Alan3 +} // End of namespace Glk |