/************************************************************************************[ParseUtils.h] Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson Copyright (c) 2007-2010, Niklas Sorensson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. **************************************************************************************************/ #ifndef Minisat_ParseUtils_h #define Minisat_ParseUtils_h #include #include #include "XAlloc.h" namespace Minisat { //------------------------------------------------------------------------------------------------- // A simple buffered character stream class: class StreamBuffer { unsigned char* buf; int pos; int size; enum { buffer_size = 64*1024 }; virtual void assureLookahead() = 0; public: virtual ~StreamBuffer() { } int operator * () const { return (pos >= size) ? EOF : buf[pos]; } void operator ++ () { pos++; assureLookahead(); } int position () const { return pos; } }; //------------------------------------------------------------------------------------------------- // End-of-file detection functions for StreamBuffer and char*: static inline bool isEof(StreamBuffer& in) { return *in == EOF; } static inline bool isEof(const char* in) { return *in == '\0'; } //------------------------------------------------------------------------------------------------- // Generic parse functions parametrized over the input-stream type. template static void skipWhitespace(B& in) { while ((*in >= 9 && *in <= 13) || *in == 32) ++in; } template static void skipLine(B& in) { for (;;){ if (isEof(in)) return; if (*in == '\n') { ++in; return; } ++in; } } template static int parseInt(B& in) { int val = 0; bool neg = false; skipWhitespace(in); if (*in == '-') neg = true, ++in; else if (*in == '+') ++in; if (*in < '0' || *in > '9') fprintf(stderr, "PARSE ERROR! Unexpected char: %c\n", *in), exit(3); while (*in >= '0' && *in <= '9') val = val*10 + (*in - '0'), ++in; return neg ? -val : val; } // String matching: in case of a match the input iterator will be advanced the corresponding // number of characters. template static bool match(B& in, const char* str) { int i; for (i = 0; str[i] != '\0'; i++) if (in[i] != str[i]) return false; in += i; return true; } // String matching: consumes characters eagerly, but does not require random access iterator. template static bool eagerMatch(B& in, const char* str) { for (; *str != '\0'; ++str, ++in) if (*str != *in) return false; return true; } //================================================================================================= } #endif href='#n22'>22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 
/*
 *  yosys -- Yosys Open SYnthesis Suite
 *
 *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
 *
 *  Permission to use, copy, modify, and/or distribute this software for any
 *  purpose with or without fee is hereby granted, provided that the above
 *  copyright notice and this permission notice appear in all copies.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 *  ---
 *
 *  A very simple and straightforward frontend for the RTLIL text
 *  representation (as generated by the 'ilang' backend).
 *
 */

#include "ilang_frontend.h"
#include "kernel/register.h"
#include "kernel/log.h"

void rtlil_frontend_ilang_yyerror(char const *s)
{
	YOSYS_NAMESPACE_PREFIX log_error("Parser error in line %d: %s\n", rtlil_frontend_ilang_yyget_lineno(), s);
}

YOSYS_NAMESPACE_BEGIN

struct IlangFrontend : public Frontend {
	IlangFrontend() : Frontend("ilang", "read modules from ilang file") { }
	void help() YS_OVERRIDE
	{
		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
		log("\n");
		log("    read_ilang [filename]\n");
		log("\n");
		log("Load modules from an ilang file to the current design. (ilang is a text\n");
		log("representation of a design in yosys's internal format.)\n");
		log("\n");
		log("    -nooverwrite\n");
		log("        ignore re-definitions of modules. (the default behavior is to\n");
		log("        create an error message if the existing module is not a blackbox\n");
		log("        module, and overwrite the existing module if it is  a blackbox module.)\n");
		log("\n");
		log("    -overwrite\n");
		log("        overwrite existing modules with the same name\n");
		log("\n");
	}
	void execute(std::istream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
	{
		ILANG_FRONTEND::flag_nooverwrite = false;
		ILANG_FRONTEND::flag_overwrite = false;

		log_header(design, "Executing ILANG frontend.\n");

		size_t argidx;
		for (argidx = 1; argidx < args.size(); argidx++) {
			std::string arg = args[argidx];
			if (arg == "-nooverwrite") {
				ILANG_FRONTEND::flag_nooverwrite = true;
				ILANG_FRONTEND::flag_overwrite = false;
				continue;
			}
			if (arg == "-overwrite") {
				ILANG_FRONTEND::flag_nooverwrite = false;
				ILANG_FRONTEND::flag_overwrite = true;
				continue;
			}
			break;
		}
		extra_args(f, filename, args, argidx);

		log("Input filename: %s\n", filename.c_str());

		ILANG_FRONTEND::lexin = f;
		ILANG_FRONTEND::current_design = design;
		rtlil_frontend_ilang_yydebug = false;
		rtlil_frontend_ilang_yyrestart(NULL);
		rtlil_frontend_ilang_yyparse();
		rtlil_frontend_ilang_yylex_destroy();
	}
} IlangFrontend;

YOSYS_NAMESPACE_END
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