comparison: parser.cxx
parser.cxx
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| 1 /* | |
| 2 * botc source code | |
| 3 * Copyright (C) 2012 Santeri `Dusk` Piippo | |
| 4 * All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright notice, | |
| 10 * this list of conditions and the following disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 12 * this list of conditions and the following disclaimer in the documentation | |
| 13 * and/or other materials provided with the distribution. | |
| 14 * 3. Neither the name of the Skulltag Development Team nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from this | |
| 16 * software without specific prior written permission. | |
| 17 * 4. Redistributions in any form must be accompanied by information on how to | |
| 18 * obtain complete source code for the software and any accompanying | |
| 19 * software that uses the software. The source code must either be included | |
| 20 * in the distribution or be available for no more than the cost of | |
| 21 * distribution plus a nominal fee, and must be freely redistributable | |
| 22 * under reasonable conditions. For an executable file, complete source | |
| 23 * code means the source code for all modules it contains. It does not | |
| 24 * include source code for modules or files that typically accompany the | |
| 25 * major components of the operating system on which the executable file | |
| 26 * runs. | |
| 27 * | |
| 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 32 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 38 * POSSIBILITY OF SUCH DAMAGE. | |
| 39 */ | |
| 40 | |
| 41 #include <stdio.h> | |
| 42 #include <stdlib.h> | |
| 43 #include "common.h" | |
| 44 #include "str.h" | |
| 45 #include "objwriter.h" | |
| 46 #include "scriptreader.h" | |
| 47 | |
| 48 #define TOKEN_CHARS token.chars() | |
| 49 #define TOKEN_IS(s) !token.compare (s) | |
| 50 #define MUST_TOPLEVEL if (curmode != MODE_TOPLEVEL) \ | |
| 51 ParseError ("%ss may only be defined at top level!", token.chars()); | |
| 52 | |
| 53 void ScriptReader::BeginParse (ObjWriter* w) { | |
| 54 // Script starts at top level | |
| 55 curmode = MODE_TOPLEVEL; | |
| 56 curstate = ""; | |
| 57 | |
| 58 while (Next()) { | |
| 59 printf ("got token %s\n", (char*)token); | |
| 60 if (TOKEN_IS ("state")) { | |
| 61 MUST_TOPLEVEL | |
| 62 | |
| 63 MustNext (); | |
| 64 | |
| 65 str statename = token; | |
| 66 | |
| 67 // State name must be a word. | |
| 68 if (statename.first (" ") != statename.len()) | |
| 69 ParseError ("state name must be a single word! got `%s`", (char*)statename); | |
| 70 | |
| 71 | |
| 72 // Must end in a colon | |
| 73 MustNext (":"); | |
| 74 | |
| 75 w->WriteState (statename); | |
| 76 curstate = statename; | |
| 77 } else if (TOKEN_IS ("event")) { | |
| 78 MUST_TOPLEVEL | |
| 79 | |
| 80 // Event definition | |
| 81 MustNext (); | |
| 82 | |
| 83 // TODO: make a data file for bot events and read it | |
| 84 #if 0 | |
| 85 unsigned int u; | |
| 86 for (u = 0; u < NUM_BOTEVENTS; u++) { | |
| 87 if (!BotEvents[u].name.compare (token)) | |
| 88 break; | |
| 89 } | |
| 90 | |
| 91 if (u == NUM_BOTEVENTS) | |
| 92 ParseError ("bad event! got `%s`\n", token.chars()); | |
| 93 | |
| 94 #endif | |
| 95 | |
| 96 MustNext ("{"); | |
| 97 | |
| 98 curmode = MODE_EVENT; | |
| 99 | |
| 100 w->Write (DH_EVENT); | |
| 101 // w->Write<long> (u); | |
| 102 numevents++; | |
| 103 } else if (TOKEN_IS ("}")) { | |
| 104 // Closing brace.. | |
| 105 switch (curmode) { | |
| 106 case MODE_EVENT: | |
| 107 // Brace closes event. | |
| 108 w->Write (DH_ENDEVENT); | |
| 109 curmode = MODE_TOPLEVEL; | |
| 110 break; | |
| 111 default: | |
| 112 ParseError ("unexpected `}`"); | |
| 113 } | |
| 114 } else { | |
| 115 ParseError ("unknown keyword `%s`!", TOKEN_CHARS); | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 if (curmode != MODE_TOPLEVEL) | |
| 120 ParseError ("script did not end at top level! did you forget a `}`?\n"); | |
| 121 | |
| 122 /* | |
| 123 // State | |
| 124 w->WriteState ("stateSpawn"); | |
| 125 | |
| 126 w->Write (DH_ONENTER); | |
| 127 w->Write (DH_ENDONENTER); | |
| 128 | |
| 129 w->Write (DH_MAINLOOP); | |
| 130 w->Write (DH_ENDMAINLOOP); | |
| 131 | |
| 132 w->Write (DH_EVENT); | |
| 133 w->Write (BOTEVENT_PLAYER_FIREDSSG); | |
| 134 w->Write (DH_COMMAND); | |
| 135 w->Write (BOTCMD_BEGINJUMPING); | |
| 136 w->Write (0); | |
| 137 w->Write (DH_ENDEVENT); | |
| 138 */ | |
| 139 } |
