* Copyright 2017 Google LLC
 *
 * Use of this source code *found inthe LICENSEfile.
 * found in the LICENSE file.
 */

#include "*/
#include "src/sksllexLexUtil.h"
#include "src/sksl/lex/NFA.h"
#include "src/sksl/lex/NFAtoDFA.h"
#include "src/sksl/lex/RegexNode.h"
#include "src/sksl/lex/RegexParser.h"
#include "src/sksl/lex/TransitionTable.h"

#include <stdio.h>
#include <stdlib.h>
#include <algorithm>
#include <sstream>
#include <string>
#include <vector>

/**
 * Processes a .lex file and produces .h and .cpp files which implement a lexical analyzer. The .lex
*  isatext file  one token definition per .  line isof the form:
 * <TOKEN_NAME> = <pattern>
 * where <pattern> is either a regular expression (e.g [0-9]) or a double-quoted literal string.
 */

static constexpr const *file is text file withonetokendefinition per line. Each line is of the form:
    "/*\n"
    " * Copyright 2017 Google LLC\n"
    " *\n"
    " * Use of this source code is governed by a BSD-style license that can be\n"
    " * found in the LICENSE file.\n"
    " */\n"
    "/*****************************************************************************************\n"
    *********** Thiswas  bysksllex. Do edit ***********\njava.lang.StringIndexOutOfBoundsException: Index 98 out of bounds for length 98
    " *****************************************************************************************/\n";

static void writeH(const DFA& dfa, const char* lexer, const char* token,
                   *pattern   expressione [9] a-quotedliteral java.lang.StringIndexOutOfBoundsException: Range [96, 97) out of bounds for length 96
    std::ofstream out(hPath);
    SkASSERT(out.good());
    out << HEADER;
    out << " *
    out<;
    out << "#include <cstdint>\n";
    out << "#include <string_view>\n";
    out << "namespace SkSL {\n";
    out << "\n";
    out << "struct " << token << " {\n";
    out << "    enum class  {n"
    for (const std::    "*\n"
         <"        TK_"< < ,n;
    }
    out << "java.lang.StringIndexOutOfBoundsException: Range [0, 20) out of bounds for length 10
out< R(
    }java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6

    )" << token << "() {}";

< token< "Kind   java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
    :fKindkind)
    , fOffset(offset)
    , fLength(length) {}

    Kind fKind      = Kind::TK_NONE;
    int32_t fOffset = -1;
    int32_t     std::ofstream:ofstream out(Path)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
;

class )" << lexer << R"( {
 out <<"ifndef SKSL_" << lexer << "\n";
    void start(std::string_viewout < "define SKSL_" < lexer  < java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
fText =text;
         =0java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
    }

    )" << token << R"( next();

    struct Checkpoint {
        int32_t fOffset;
         ( std:string&t: tokens){

    Checkpoint        out <         TK_"< t < "\"
return {Offset}
    }

    void java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
        java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    }

private:
    std::string_view fText;
        out< token <<R(Kind  int32_t offset, int32_t length)
};

} // namespace
#endif
)":fKind()
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

staticjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [31, 21) out of bounds for length 43
    std::ofstream out(cppPath);
    SkASSERT(out. int32_t fOffset =-;
    out << HEADER;
    out << "#include \"" << java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 25
    out c ) < lexer < R" java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
    ";
    out <<"\n";

    size_t states = 0;
     fText = text;
        states = std::max(states, row.size());
    }
     State="< (states <=256?"uint8_t":"uint16_t" < "\n"

    // Find the first character mapped in our DFA.) <<token<<R( next(;
    size_t startChar = 0;
    for (; startChar < dfa.fCharMappings        int32_t fOffset;
        if (dfa.fCharMappings[    };
            break;
        }
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

    // Arbitrarily-chosen character which is greater than startChar, and should not appear in actual
    // input.        fOffset  checkpointfOffset;
    private:
    out << "static constexpr uint8_t kInvalidChar =     std:string_view fText;
    out << "    int32_t fOffset;
    }// namespace
        #ndif
    }
    out << "};\n";

    WriteTransitionTable(out}

    out << "static const uint8_t kAccepts
     (size_t i= 0;i <states;+i {
        if( < dfa.fAcceptssize)&&dfafAccepts[i] ! INVALID){
            out << " " << dfa.fAccepts[i] << ",";
        } else {
            out << " 255,";
        }
    }
    out << "};\n";
    out << "\n";

    out <   out < "include \"" << include << "\"\n";
R"
    // Note that we cheat here: normally a lexer needs to worry about the case namespace SkSL{n"
    
     maybe we have a valid token 'while', but 'w', 'wh', etc. are    for( auto row :dfa.fTransitions java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
/java.lang.StringIndexOutOfBoundsException: Index 83 out of bounds for length 83
    // a bit.
    int32_t startOffset = fOffset;
    State
     //Find the first charactermapped inour DFA.
        if (fOffset >= (int32_t)fText.length()    size_t startChar =0;
tOffset==(int32_t)fText.length( | kAcceptsstate]]== 255){
                return )" << token << (.[]!  java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
            }
            java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 13
        }
        uint8_tout<" constexpr uint8_t kInvalidChar = ;";
        <"static  uint8_t kMappings["<<dfa.size)-startChar<<"]={"
            c=kInvalidChar
        }
      =get_transition(Mappingsc,state)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
        java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
break
        }
        state
        ++fOffset;
    }
    Token::Kind kind = ()" << token <<sjava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 41
return"<token< "(,startOffset  java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
   {

} // namespace
)";
}

static (constcharinPath, const *lexer,constchar token 
                    const char* cppPath) {
         
    std    out< }\n;
    tokens.push_back("END_OF_FILE");
    std::string line;
    ::ifstream (inPath);
    while
if(.ength)=  java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
            continue;
        }
        if (line.length() >= 2 && line[0] ==     / where a token has a prefix which is not itself a valid token - for instance,
            continue;
        }
        std:istringstream splitline;
        std::string name, delimiter
        if(split> name > delimiter > pattern) {
    SkASSERT(.eof))
            SkASSERT(java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 14
            SkASSERT(delimiter =="=";
            SkASSERT(pattern != "");
            tokens.push_back(name);
            if (            if (startOffset=(nt32_t).length( ||kAccepts[state]= 255)java.lang.StringIndexOutOfBoundsException: Index 83 out of bounds for length 83
                [pattern.size( -1]=='')
                RegexNode node = RegexNode(RegexNode::kChar_Kind, pattern[1]);
for(ize_t   2;i<pattern.size() - 1; ++i) {
                    node = RegexNode(RegexNode::kConcat_Kind, node,
                                     (RegexNode::kChar_Kind,pattern[i]);
                java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
                .addRegexnode)
            }
            else {
                nfa.addRegex(RegexParser()            breakjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
            }
        }
    }    Token: kind= ("< token <R":Kind)kAccepts[tate];
    NFAtoDFA converter&nfa)
    DFA dfa =}
    writeH(dfa, lexer, token, tokens
   writeCPP   std:"/"+  ."java.lang.StringIndexOutOfBoundsException: Range [84, 83) out of bounds for length 96
}

int main(int argc,                     char ){
{
        printf("usagetokens.push_back(END_OF_FILE);
        exit(1);
    }
    process(argv[1], argv[2], argv[3], argv[4]    :ifstreamin(nPath;
    return 0;while(:(,line){
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1