63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
////////////////////////////////
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//~ sixten: Scene Message Functions
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static void S_PushMessage(memory_arena *Arena, scene_message_list *Messages, scene_node *Node, scene_message_type Type, string String)
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{
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scene_message *Message = PushStruct(Arena, scene_message);
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Message->Type = Type;
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Message->Node = Node;
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Message->String = String;
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QueuePush(Messages->First, Messages->Last, Message);
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Messages->Count += 1;
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}
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////////////////////////////////
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//~ sixten: Scene Node Functions
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static scene_node *S_SceneFromText(memory_arena *Arena, string Filename, string Text)
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{
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tokenize_result TokenizeResult = T_TokenizeFromText(Arena, Filename, Text, TokenGroup_Comment|TokenGroup_Whitespace);
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scene_parse_result ParseResult = S_ParseFromTokens(Arena, Filename, Text, TokenizeResult.Tokens);
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scene_node *Result = ParseResult.Root;
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return(Result);
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}
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////////////////////////////////
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//~ sixten: Tokens -> Syntax Tree
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static scene_parse_result S_ParseFromTokens(memory_arena *Arena, string Filename, string Text, token_array Tokens)
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{
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temporary_memory Scratch = GetScratch(&Arena, 1);
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//scene_node *Root = {};
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//- sixten: setup parse context
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scene_parse_context Context = {};
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{
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Context.TokensStart = Tokens.Tokens;
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Context.TokensEnd = Context.TokensStart + Tokens.Count;
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Context.Token = Context.TokensStart;
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}
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//- sixten: parse top-level
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for(;Context.Token < Context.TokensEnd;)
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{
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string TokenString = PushString(Scratch.Arena, T_StringFromToken(Text, *Context.Token));
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if(T_TokenMatches(*Context.Token, TokenFlag_Identifier, Text, StrLit("proc")))
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{
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Context.Token += 1;
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goto TokenConsumed;
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}
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//- sixten: token was not consumed, something has gone wrong
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{
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Context.Token += 1;
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}
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TokenConsumed:;
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}
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ReleaseScratch(Scratch);
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scene_parse_result Result =
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{
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0
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};
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return(Result);
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} |