PT_Tree PT_makeTreeLit(const char* string) { int len = strlen(string); int i; PT_Args args = PT_makeArgsEmpty(); PT_Symbols symbols = PT_makeSymbolsEmpty(); PT_Symbol symbol = PT_makeSymbolLit(string); PT_Attributes attrs = PT_makeAttributesNoAttrs(); PT_Production prod; for (i = len - 1; i >= 0; i--) { PT_Tree arg; PT_Symbol symbol; arg = PT_makeTreeChar(string[i]); args = PT_makeArgsMany(arg, args); symbol = PT_makeSymbolCharClass( PT_makeCharRangesSingle( PT_makeCharRangeCharacter(string[i]))); symbols = PT_makeSymbolsMany(symbol, symbols); } prod = PT_makeProductionDefault(symbols, symbol, attrs); return PT_makeTreeAppl(prod, args); }
PT_Tree PT_makeTreeCilit(const char* string) { int len = strlen(string); int i; PT_Args args = PT_makeArgsEmpty(); PT_Symbols symbols = PT_makeSymbolsEmpty(); PT_Symbol symbol = PT_makeSymbolCilit(string); PT_Attributes attrs = PT_makeAttributesNoAttrs(); PT_Production prod; for (i = len - 1; i >= 0; i--) { PT_Tree arg; PT_Symbol symbol; arg = PT_makeTreeChar(string[i]); args = PT_makeArgsMany(arg, args); if (string[i] >= 'A' && string[i] <= 'Z') { PT_CharRanges range1 = PT_makeCharRangesSingle( PT_makeCharRangeCharacter(string[i])); PT_CharRanges range2 = PT_makeCharRangesSingle( PT_makeCharRangeCharacter(string[i]+ ('a' - 'A'))); symbol = PT_makeSymbolCharClass(PT_concatCharRanges(range1,range2)); } else if (string[i] >= 'a' && string[i] <= 'z') { PT_CharRanges range1 = PT_makeCharRangesSingle( PT_makeCharRangeCharacter(string[i])); PT_CharRanges range2 = PT_makeCharRangesSingle( PT_makeCharRangeCharacter(string[i]- ('a' - 'A'))); symbol = PT_makeSymbolCharClass(PT_concatCharRanges(range2,range1)); } else { symbol = PT_makeSymbolCharClass( PT_makeCharRangesSingle( PT_makeCharRangeCharacter(string[i]))); } symbols = PT_makeSymbolsMany(symbol, symbols); } prod = PT_makeProductionDefault(symbols, symbol, attrs); return PT_makeTreeAppl(prod, args); }
PT_Symbol makeSymbolAllChars() { PT_CharRanges ranges = PT_makeCharRangesSingle(PT_makeCharRangeRange(0, 255)); return PT_makeSymbolIterStar( PT_makeSymbolCharClass(ranges)); }