1070 lines
29 KiB
C++
1070 lines
29 KiB
C++
//---------------------------------------------------------------------------
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#include "tokenize.h"
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#include "CommonCheck.h" // <- IsName
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//---------------------------------------------------------------------------
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#include <locale>
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#include <fstream>
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#include <map>
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#include <string>
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#include <stdlib.h> // <- strtoul
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//---------------------------------------------------------------------------
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// Helper functions..
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static void Define(const char Name[], const char Value[]);
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static void addtoken(const char str[], const unsigned int lineno, const unsigned int fileno);
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static void combine_2tokens(TOKEN *tok, const char str1[], const char str2[]);
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static void DeleteNextToken(TOKEN *tok);
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//---------------------------------------------------------------------------
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std::vector<std::string> Files;
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struct TOKEN *tokens, *tokens_back;
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// Defined symbols.
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// "#define abc 123" will create a defined symbol "abc" with the value 123
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//---------------------------------------------------------------------------
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struct DefineSymbol
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{
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char *name;
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char *value;
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struct DefineSymbol *next;
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};
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static struct DefineSymbol * dsymlist;
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static void Define(const char Name[], const char Value[])
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{
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if (!(Name && Name[0]))
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return;
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if (!(Value && Value[0]))
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return;
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// Is 'Value' a decimal value..
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bool dec = true, hex = true;
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for (int i = 0; Value[i]; i++)
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{
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if ( ! std::isdigit(Value[i]) )
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dec = false;
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if ( ! std::isxdigit(Value[i]) && (!(i==1 && Value[i]=='x')))
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hex = false;
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}
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if (!dec && !hex)
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return;
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char *strValue = strdup(Value);
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if (!dec && hex)
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{
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char str[50];
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unsigned long value = strtoul(Value+2, NULL, 16);
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free(strValue);
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strValue = strdup(itoa(value, str, 10));
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}
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DefineSymbol *NewSym = new DefineSymbol;
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memset(NewSym, 0, sizeof(DefineSymbol));
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NewSym->name = strdup(Name);
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NewSym->value = strValue;
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NewSym->next = dsymlist;
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dsymlist = NewSym;
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}
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// addtoken
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// add a token. Used by 'Tokenizer'
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//---------------------------------------------------------------------------
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static void addtoken(const char str[], const unsigned int lineno, const unsigned int fileno)
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{
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if (str[0] == 0)
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return;
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// The keyword 'unsigned' can be skipped for now.
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if (strcmp(str,"unsigned")==0)
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return;
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// Replace hexadecimal value with decimal
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char str2[50];
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memset(str2, 0, sizeof(str2));
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if (strncmp(str,"0x",2)==0)
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{
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unsigned int value = strtoul(str+2, NULL, 16);
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itoa(value, str2, 10);
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}
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TOKEN *newtoken = new TOKEN;
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memset(newtoken, 0, sizeof(TOKEN));
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newtoken->str = strdup(str2[0] ? str2 : str);
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newtoken->linenr = lineno;
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newtoken->FileIndex = fileno;
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if (tokens_back)
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{
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tokens_back->next = newtoken;
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tokens_back = newtoken;
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}
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else
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{
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tokens = tokens_back = newtoken;
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}
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// Check if str is defined..
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for (DefineSymbol *sym = dsymlist; sym; sym = sym->next)
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{
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if (strcmp(str,sym->name)==0)
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{
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free(newtoken->str);
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newtoken->str = strdup(sym->value);
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break;
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}
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}
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}
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// combine_2tokens
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// Combine two tokens that belong to each other. Ex: "<" and "=" may become "<="
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//---------------------------------------------------------------------------
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static void combine_2tokens(TOKEN *tok, const char str1[], const char str2[])
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{
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if (!(tok && tok->next))
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return;
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if (strcmp(tok->str,str1) || strcmp(tok->next->str,str2))
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return;
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free(tok->str);
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tok->str = (char *)malloc(strlen(str1)+strlen(str2)+1);
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strcpy(tok->str, str1);
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strcat(tok->str, str2);
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DeleteNextToken(tok);
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}
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// SizeOfType - gives the size of a type
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//---------------------------------------------------------------------------
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std::map<std::string, unsigned int> TypeSize;
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int SizeOfType(const char type[])
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{
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if (!type)
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return 0;
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return TypeSize[type];
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}
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// DeleteNextToken. Unlink and delete next token.
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//---------------------------------------------------------------------------
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static void DeleteNextToken(TOKEN *tok)
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{
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TOKEN *next = tok->next;
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tok->next = next->next;
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free(next->str);
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delete next;
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}
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// InsertTokens - Copy and insert tokens
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//---------------------------------------------------------------------------
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void InsertTokens(TOKEN *dest, TOKEN *src, unsigned int n)
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{
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while (n > 0)
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{
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TOKEN *NewToken = new TOKEN;
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NewToken->FileIndex = src->FileIndex;
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NewToken->linenr = src->linenr;
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NewToken->str = strdup(src->str);
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NewToken->next = dest->next;
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dest->next = NewToken;
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dest = dest->next;
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src = src->next;
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n--;
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}
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}
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// Tokenize - tokenizes a given file.
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//---------------------------------------------------------------------------
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void Tokenize(const char FileName[])
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{
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// Has this file been tokenized already?
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for (unsigned int i = 0; i < Files.size(); i++)
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{
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if ( stricmp(Files[i].c_str(), FileName) == 0 )
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return;
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}
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std::ifstream fin(FileName);
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if (!fin.is_open())
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return;
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unsigned int CurrentFile = Files.size();
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Files.push_back(FileName);
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unsigned int lineno = 1;
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char CurrentToken[1000];
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memset(CurrentToken, 0, sizeof(CurrentToken));
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char *pToken = CurrentToken;
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for (char ch = (char)fin.get(); !fin.eof(); ch = (char)fin.get())
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{
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if (ch == '#' && !CurrentToken[0])
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{
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std::string line;
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getline(fin,line);
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line = "#" + line;
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if (strncmp(line.c_str(),"#include",8)==0 &&
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line.find("\"") != std::string::npos)
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{
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// Extract the filename
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line.erase(0, line.find("\"")+1);
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line.erase(line.find("\""));
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// Relative path..
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if (strchr(FileName,'\\'))
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{
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char path[1000];
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memset(path,0,sizeof(path));
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const char *p = strrchr(FileName, '\\');
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memcpy(path, FileName, p-FileName+1);
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line = path + line;
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}
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addtoken("#include", lineno, CurrentFile);
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addtoken(line.c_str(), lineno, CurrentFile);
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Tokenize(line.c_str());
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}
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else if (strncmp(line.c_str(), "#define", 7) == 0)
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{
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char *strId = NULL;
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enum {Space1, Id, Space2, Value} State;
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State = Space1;
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for (unsigned int i = 8; i < line.length(); i++)
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{
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if (State==Space1 || State==Space2)
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{
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if (std::isspace(line[i]))
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continue;
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State = (State==Space1) ? Id : Value;
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}
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else if (State==Id && std::isspace(line[i]))
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{
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strId = strdup(CurrentToken);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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pToken = CurrentToken;
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State = Space2;
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continue;
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}
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*pToken = line[i];
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pToken++;
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}
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if (State==Value)
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{
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Define(strId, CurrentToken);
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}
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pToken = CurrentToken;
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memset(CurrentToken, 0, sizeof(CurrentToken));
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free(strId);
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}
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else
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{
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addtoken("#", lineno, CurrentFile);
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addtoken(";", lineno, CurrentFile);
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}
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lineno++;
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continue;
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}
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if (ch == '\n')
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{
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// Add current token..
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addtoken(CurrentToken, lineno++, CurrentFile);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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pToken = CurrentToken;
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continue;
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}
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// Comments..
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if (ch == '/' && !fin.eof())
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{
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// Add current token..
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addtoken(CurrentToken, lineno, CurrentFile);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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pToken = CurrentToken;
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// Read next character..
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ch = (char)fin.get();
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// If '//'..
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if (ch == '/')
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{
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while (!fin.eof() && (char)fin.get()!='\n');
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lineno++;
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continue;
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}
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// If '/*'..
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if (ch == '*')
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{
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char chPrev;
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ch = chPrev = 'A';
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while (!fin.eof() && (chPrev!='*' || ch!='/'))
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{
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chPrev = ch;
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ch = (char)fin.get();
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if (ch == '\n')
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lineno++;
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}
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continue;
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}
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// Not a comment.. add token..
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addtoken("/", lineno, CurrentFile);
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}
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// char..
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if (ch == '\'')
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{
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// Add previous token
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addtoken(CurrentToken, lineno, CurrentFile);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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// Read this ..
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CurrentToken[0] = ch;
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CurrentToken[1] = (char)fin.get();
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CurrentToken[2] = (char)fin.get();
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if (CurrentToken[1] == '\\')
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CurrentToken[3] = (char)fin.get();
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// Add token and start on next..
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addtoken(CurrentToken, lineno, CurrentFile);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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pToken = CurrentToken;
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continue;
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}
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// String..
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if (ch == '\"')
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{
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addtoken(CurrentToken, lineno, CurrentFile);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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pToken = CurrentToken;
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bool special = false;
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char c = ch;
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do
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{
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// Append token..
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if ( pToken < &CurrentToken[sizeof(CurrentToken)-10] )
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{
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*pToken = c;
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pToken++;
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}
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// Special sequence '\.'
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if (special)
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special = false;
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else
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special = (c == '\\');
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// Get next character
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c = (char)fin.get();
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}
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while (special || c != '\"');
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*pToken = '\"';
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addtoken(CurrentToken, lineno, CurrentFile);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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pToken = CurrentToken;
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continue;
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}
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if (strchr("+-*/%&|^?!=<>[](){};:,.",ch))
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{
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addtoken(CurrentToken, lineno, CurrentFile);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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CurrentToken[0] = ch;
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addtoken(CurrentToken, lineno, CurrentFile);
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memset(CurrentToken, 0, sizeof(CurrentToken));
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pToken = CurrentToken;
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continue;
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}
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if (std::isspace(ch) || std::iscntrl(ch))
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{
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addtoken(CurrentToken, lineno, CurrentFile);
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pToken = CurrentToken;
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memset(CurrentToken, 0, sizeof(CurrentToken));
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continue;
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}
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*pToken = ch;
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pToken++;
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}
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// Combine tokens..
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for (TOKEN *tok = tokens; tok && tok->next; tok = tok->next)
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{
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combine_2tokens(tok, "<", "<");
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combine_2tokens(tok, ">", ">");
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combine_2tokens(tok, "&", "&");
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combine_2tokens(tok, "|", "|");
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combine_2tokens(tok, "+", "=");
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combine_2tokens(tok, "-", "=");
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combine_2tokens(tok, "*", "=");
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combine_2tokens(tok, "/", "=");
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combine_2tokens(tok, "&", "=");
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combine_2tokens(tok, "|", "=");
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combine_2tokens(tok, "=", "=");
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combine_2tokens(tok, "!", "=");
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combine_2tokens(tok, "<", "=");
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combine_2tokens(tok, ">", "=");
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combine_2tokens(tok, ":", ":");
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combine_2tokens(tok, "-", ">");
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combine_2tokens(tok, "private", ":");
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combine_2tokens(tok, "protected", ":");
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combine_2tokens(tok, "public", ":");
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}
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}
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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// Simplify token list
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//---------------------------------------------------------------------------
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void SimplifyTokenList()
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{
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// Replace constants..
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for (TOKEN *tok = tokens; tok; tok = tok->next)
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{
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if (match(tok,"const type var = num ;"))
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{
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const char *sym = getstr(tok,2);
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const char *num = getstr(tok,4);
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for (TOKEN *tok2 = gettok(tok,6); tok2; tok2 = tok2->next)
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{
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if (strcmp(tok2->str,sym) == 0)
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{
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free(tok2->str);
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tok2->str = strdup(num);
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}
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}
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}
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}
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// typedefs..
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TOKEN *prev = NULL;
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for (TOKEN *tok = tokens; tok; tok = tok->next)
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{
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if (!prev)
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tok = tokens;
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if ( strcmp(tok->str, "typedef") == 0 )
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{
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TOKEN *type0 = tok->next;
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int len = 0, parlevel = 0;
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for ( TOKEN *tok2 = gettok(type0,1); tok2; tok2 = tok2->next)
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{
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if (strchr("{(", tok2->str[0]))
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parlevel++;
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else if (strchr("})", tok2->str[0]))
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parlevel--;
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else if (parlevel==0 && tok2->str[0]==';')
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break;
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len++;
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}
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const char *typestr = getstr(type0, len);
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if (typestr[0] != ')') // Function pointer
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{
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// Replace tokens..
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for ( TOKEN *tok2 = gettok(type0, len+1); tok2; tok2 = tok2->next )
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{
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if (strcmp(tok2->str,"typedef")==0)
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{
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int parlevel = 0;
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while (parlevel > 0 || tok2->next->str[0] != ';')
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{
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if (tok2->str[0] == '{')
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parlevel++;
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else if (tok2->str[0] == '}')
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parlevel--;
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tok2 = tok2->next;
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if (!tok2->next)
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break;
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}
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continue;
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}
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TOKEN *next = tok2->next;
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if (next && strcmp(next->str, typestr) == 0)
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{
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DeleteNextToken(tok2);
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InsertTokens( tok2, type0, len );
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tok2 = gettok(tok2, len);
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}
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}
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}
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// Delete typedef..
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if (!prev)
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{
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int parlevel = 0;
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while ( parlevel > 0 || tokens->str[0] != ';' )
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{
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if ( strchr( "({", tokens->str[0] ) )
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parlevel++;
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else if ( strchr( ")}", tokens->str[0] ) )
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parlevel--;
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// Delete the first element in the tokens list.
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TOKEN *next = tokens->next;
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free(tokens->str);
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delete tokens;
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tokens = next;
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if (!tokens)
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break;
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}
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tok = tokens;
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prev = NULL;
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continue;
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}
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else
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{
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int parlevel = 0;
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while ( parlevel > 0 || prev->next->str[0] != ';' )
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{
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if ( strchr( "({", prev->next->str[0] ) )
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parlevel++;
|
|
else if ( strchr( ")}", prev->next->str[0] ) )
|
|
parlevel--;
|
|
DeleteNextToken(prev);
|
|
if (!prev->next)
|
|
break;
|
|
}
|
|
tok = prev;
|
|
}
|
|
}
|
|
prev = tok;
|
|
}
|
|
|
|
|
|
// Fill the map TypeSize..
|
|
TypeSize.clear();
|
|
TypeSize["char"] = sizeof(char);
|
|
TypeSize["short"] = sizeof(short);
|
|
TypeSize["int"] = sizeof(int);
|
|
TypeSize["long"] = sizeof(long);
|
|
TypeSize["float"] = sizeof(float);
|
|
TypeSize["double"] = sizeof(double);
|
|
for (TOKEN *tok = tokens; tok; tok = tok->next)
|
|
{
|
|
if (match(tok,"class type"))
|
|
{
|
|
TypeSize[getstr(tok,1)] = 11;
|
|
}
|
|
|
|
else if (match(tok, "struct type"))
|
|
{
|
|
TypeSize[getstr(tok,1)] = 13;
|
|
}
|
|
}
|
|
|
|
|
|
// Replace 'sizeof(type)'..
|
|
for (TOKEN *tok = tokens; tok; tok = tok->next)
|
|
{
|
|
if (strcmp(tok->str,"sizeof") != 0)
|
|
continue;
|
|
|
|
if (match(tok, "sizeof ( type * )"))
|
|
{
|
|
free(tok->str);
|
|
char str[10];
|
|
// 'sizeof(type *)' has the same size as 'sizeof(char *)'
|
|
tok->str = strdup(itoa(sizeof(char *), str, 10));
|
|
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
DeleteNextToken(tok);
|
|
}
|
|
}
|
|
|
|
else if (match(tok, "sizeof ( type )"))
|
|
{
|
|
const char *type = getstr(tok, 2);
|
|
int size = SizeOfType(type);
|
|
if (size > 0)
|
|
{
|
|
free(tok->str);
|
|
char str[10];
|
|
tok->str = strdup(itoa(size, str, 10));
|
|
|
|
for (int i = 0; i < 3; i++)
|
|
{
|
|
DeleteNextToken(tok);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Replace 'sizeof(var)'
|
|
for (TOKEN *tok = tokens; tok; tok = tok->next)
|
|
{
|
|
// type array [ num ] ;
|
|
if ( ! match(tok, "type var [ num ] ;") )
|
|
continue;
|
|
|
|
int size = SizeOfType(tok->str);
|
|
if (size <= 0)
|
|
continue;
|
|
|
|
const char *varname = getstr(tok, 1);
|
|
int total_size = size * atoi( getstr(tok, 3) );
|
|
|
|
// Replace 'sizeof(var)' with number
|
|
int indentlevel = 0;
|
|
for ( TOKEN *tok2 = gettok(tok,5); tok2; tok2 = tok2->next )
|
|
{
|
|
if (tok2->str[0] == '{')
|
|
{
|
|
indentlevel++;
|
|
}
|
|
|
|
else if (tok2->str[0] == '}')
|
|
{
|
|
indentlevel--;
|
|
if (indentlevel < 0)
|
|
break;
|
|
}
|
|
|
|
else if (match(tok2, "sizeof ( var )"))
|
|
{
|
|
if (strcmp(getstr(tok2,2), varname) == 0)
|
|
{
|
|
free(tok2->str);
|
|
char str[20];
|
|
tok2->str = strdup(itoa(total_size, str, 10));
|
|
|
|
// Delete the other tokens..
|
|
for (int i = 0; i < 3; i++)
|
|
{
|
|
DeleteNextToken(tok2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
// Simple calculations..
|
|
|
|
bool done = false;
|
|
while (!done)
|
|
{
|
|
done = true;
|
|
|
|
for (TOKEN *tok = tokens; tok; tok = tok->next)
|
|
{
|
|
if (match(tok->next, "* 1") || match(tok->next, "1 *"))
|
|
{
|
|
for (int i = 0; i < 2; i++)
|
|
DeleteNextToken(tok);
|
|
done = false;
|
|
}
|
|
|
|
// (1-2)
|
|
if (strchr("[,(=<>",tok->str[0]) &&
|
|
IsNumber(getstr(tok,1)) &&
|
|
strchr("+-*/",*(getstr(tok,2))) &&
|
|
IsNumber(getstr(tok,3)) &&
|
|
strchr("],);=<>",*(getstr(tok,4))) )
|
|
{
|
|
done = false;
|
|
|
|
int i1 = atoi(getstr(tok,1));
|
|
int i2 = atoi(getstr(tok,3));
|
|
switch (*(getstr(tok,2)))
|
|
{
|
|
case '+': i1 += i2; break;
|
|
case '-': i1 -= i2; break;
|
|
case '*': i1 *= i2; break;
|
|
case '/': i1 /= i2; break;
|
|
}
|
|
tok = tok->next;
|
|
free(tok->str);
|
|
char str[10];
|
|
tok->str = strdup(itoa(i1,str,10));
|
|
for (int i = 0; i < 2; i++)
|
|
{
|
|
DeleteNextToken(tok);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Replace "*(str + num)" => "str[num]"
|
|
for (TOKEN *tok = tokens; tok; tok = tok->next)
|
|
{
|
|
if ( ! strchr(";{}(=<>", tok->str[0]) )
|
|
continue;
|
|
|
|
TOKEN *next = tok->next;
|
|
if ( ! next )
|
|
break;
|
|
|
|
if (match(next, "* ( var + num )"))
|
|
{
|
|
const char *str[4] = {"var","[","num","]"};
|
|
str[0] = getstr(tok,3);
|
|
str[2] = getstr(tok,5);
|
|
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
tok = tok->next;
|
|
free(tok->str);
|
|
tok->str = strdup(str[i]);
|
|
}
|
|
|
|
DeleteNextToken(tok);
|
|
DeleteNextToken(tok);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
// Split up variable declarations if possible..
|
|
for (TOKEN *tok = tokens; tok; tok = tok->next)
|
|
{
|
|
if ( ! strchr("{};", tok->str[0]) )
|
|
continue;
|
|
|
|
TOKEN *type0 = tok->next;
|
|
if (!type0)
|
|
break;
|
|
if (strcmp(type0->str, "else") == 0)
|
|
continue;
|
|
|
|
TOKEN *tok2 = NULL;
|
|
unsigned int typelen = 0;
|
|
|
|
if ( match(type0, "type var ,") )
|
|
{
|
|
tok2 = gettok(type0, 2); // The ',' token
|
|
typelen = 1;
|
|
}
|
|
|
|
else if ( match(type0, "type * var ,") )
|
|
{
|
|
tok2 = gettok(type0, 3); // The ',' token
|
|
typelen = 1;
|
|
}
|
|
|
|
else if ( match(type0, "type var [ num ] ,") )
|
|
{
|
|
tok2 = gettok(type0, 5); // The ',' token
|
|
typelen = 1;
|
|
}
|
|
|
|
else if ( match(type0, "type * var [ num ] ,") )
|
|
{
|
|
tok2 = gettok(type0, 6); // The ',' token
|
|
typelen = 1;
|
|
}
|
|
|
|
else if ( match(type0, "struct type var ,") )
|
|
{
|
|
tok2 = gettok(type0, 3);
|
|
typelen = 2;
|
|
}
|
|
|
|
else if ( match(type0, "struct type * var ,") )
|
|
{
|
|
tok2 = gettok(type0, 4);
|
|
typelen = 2;
|
|
}
|
|
|
|
|
|
else if ( match(type0, "type var =") )
|
|
{
|
|
tok2 = gettok(type0, 2);
|
|
typelen = 1;
|
|
}
|
|
|
|
else if ( match(type0, "type * var =") )
|
|
{
|
|
tok2 = gettok(type0, 3);
|
|
typelen = 1;
|
|
}
|
|
|
|
else if ( match(type0, "struct type * var =") )
|
|
{
|
|
tok2 = gettok(type0, 4);
|
|
typelen = 2;
|
|
}
|
|
|
|
if (tok2)
|
|
{
|
|
if (tok2->str[0] == ',')
|
|
{
|
|
free(tok2->str);
|
|
tok2->str = strdup(";");
|
|
InsertTokens(tok2, type0, typelen);
|
|
}
|
|
|
|
else
|
|
{
|
|
TOKEN *eq = tok2;
|
|
|
|
int parlevel = 0;
|
|
while (tok2)
|
|
{
|
|
if ( strchr("{(", tok2->str[0]) )
|
|
{
|
|
parlevel++;
|
|
}
|
|
|
|
else if ( strchr("})", tok2->str[0]) )
|
|
{
|
|
if (parlevel<0)
|
|
break;
|
|
parlevel--;
|
|
}
|
|
|
|
else if ( parlevel==0 && strchr(";,",tok2->str[0]) )
|
|
{
|
|
// "type var =" => "type var; var ="
|
|
TOKEN *VarTok = gettok(type0,typelen);
|
|
if (VarTok->str[0]=='*')
|
|
VarTok = VarTok->next;
|
|
InsertTokens(eq, VarTok, 2);
|
|
free(eq->str);
|
|
eq->str = strdup(";");
|
|
|
|
// "= x, " => "= x; type "
|
|
if (tok2->str[0] == ',')
|
|
{
|
|
free(tok2->str);
|
|
tok2->str = strdup(";");
|
|
InsertTokens( tok2, type0, typelen );
|
|
}
|
|
break;
|
|
}
|
|
|
|
tok2 = tok2->next;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// Helper functions for handling the tokens list
|
|
//---------------------------------------------------------------------------
|
|
|
|
TOKEN *findtoken(TOKEN *tok1, const char *tokenstr[])
|
|
{
|
|
for (TOKEN *ret = tok1; ret; ret = ret->next)
|
|
{
|
|
unsigned int i = 0;
|
|
TOKEN *tok = ret;
|
|
while (tokenstr[i])
|
|
{
|
|
if (!tok)
|
|
return NULL;
|
|
if (*(tokenstr[i]) && strcmp(tokenstr[i],tok->str))
|
|
break;
|
|
tok = tok->next;
|
|
i++;
|
|
}
|
|
if (!tokenstr[i])
|
|
return ret;
|
|
}
|
|
return NULL;
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
|
|
bool match(TOKEN *tok, const std::string pattern)
|
|
{
|
|
if (!tok)
|
|
return false;
|
|
|
|
const char *p = pattern.c_str();
|
|
while (*p)
|
|
{
|
|
char str[50];
|
|
char *s = str;
|
|
while (*p==' ')
|
|
p++;
|
|
while (*p && *p!=' ')
|
|
{
|
|
*s = *p;
|
|
s++;
|
|
p++;
|
|
}
|
|
*s = 0;
|
|
if (str[0] == 0)
|
|
return true;
|
|
|
|
if (strcmp(str,"var")==0 || strcmp(str,"type")==0)
|
|
{
|
|
if (!IsName(tok->str))
|
|
return false;
|
|
}
|
|
else if (strcmp(str,"num")==0)
|
|
{
|
|
if (!std::isdigit(tok->str[0]))
|
|
return false;
|
|
}
|
|
else if (strcmp(str, tok->str) != 0)
|
|
return false;
|
|
|
|
tok = tok->next;
|
|
if (!tok)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
|
|
TOKEN *gettok(TOKEN *tok, int index)
|
|
{
|
|
while (tok && index>0)
|
|
{
|
|
tok = tok->next;
|
|
index--;
|
|
}
|
|
return tok;
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
|
|
const char *getstr(TOKEN *tok, int index)
|
|
{
|
|
tok = gettok(tok, index);
|
|
return tok ? tok->str : "";
|
|
}
|
|
//---------------------------------------------------------------------------
|
|
|
|
|
|
|
|
// Deallocate lists..
|
|
void DeallocateTokens()
|
|
{
|
|
while (tokens)
|
|
{
|
|
TOKEN *next = tokens->next;
|
|
free(tokens->str);
|
|
delete tokens;
|
|
tokens = next;
|
|
}
|
|
tokens_back = tokens;
|
|
|
|
while (dsymlist)
|
|
{
|
|
struct DefineSymbol *next = dsymlist->next;
|
|
free(dsymlist->name);
|
|
free(dsymlist->value);
|
|
delete dsymlist;
|
|
dsymlist = next;
|
|
}
|
|
}
|
|
|
|
|