2022-07-02 09:42:10 +00:00
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< div id = "projectname" > sapphirec
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2022-07-02 09:49:51 +00:00
< div id = "projectbrief" > The Sapphire compiler< / div >
2022-07-02 09:42:10 +00:00
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< div class = "title" > Lexer.h< / div > < / div >
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "preprocessor" > #pragma once< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "preprocessor" > #include " Token.h" < / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "preprocessor" > #include " sapphirepch.h" < / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "preprocessor" > #include < array> < / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > /* Let' s redefine TokenStream, as if it wasn' t already defined in Token.h*/< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "keyword" > typedef< / span > std::vector< Token> TokenStream;< / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "comment" > /* The number of data types currently in Sapphire. */< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > #define TYPE_COUNT 14< / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "comment" > /* The Lexer for the Sapphire compiler. A Lexer reads source code from a file, and turns it into a stream of tokens the< / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "comment" > * compiler can understand. */< / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > < a class = "line" href = "classLexer.html" > 13< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "classLexer.html" > Lexer< / a > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   {< / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < a class = "code" href = "structLocation.html" > Location< / a > loc;< / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < a class = "code" href = "structLocation.html" > Location< / a > prev_loc;< / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "keywordtype" > int< / span > advance();< / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "keywordtype" > int< / span > rewind();< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "keywordtype" > char< / span > current_char;< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "keywordtype" > int< / span > index;< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < a class = "code" href = "classLexer.html" > Lexer< / a > (< span class = "keyword" > const< / span > std::string& fname);< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   std::string current_line_text;< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   std::string previous_line_text;< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   std::string current_lexed_text;< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   std::string recalculate_current_line(< span class = "keyword" > const< / span > std::string& text);< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < a class = "code" href = "structToken.html" > Token< / a > create_string();< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < a class = "code" href = "structToken.html" > Token< / a > create_number();< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < a class = "code" href = "structToken.html" > Token< / a > create_identifier();< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "keywordtype" > bool< / span > is_in_string(< span class = "keyword" > const< / span > std::string& < span class = "keywordtype" > string< / span > , < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > & character);< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "comment" > /* An array containing Sapphire' s current data types. */< / span > < / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "keyword" > static< / span > < span class = "keyword" > const< / span > std::array< std::string, TYPE_COUNT> types;< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   ~< a class = "code" href = "classLexer.html" > Lexer< / a > ();< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "comment" > /* Lex the given text, turning it into a stream of tokens. */< / span > < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   TokenStream lex(< span class = "keyword" > const< / span > std::string& text);< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "comment" > /* Create a new Lexer and return a pointer to it. */< / span > < / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keyword" > static< / span > std::unique_ptr< Lexer> make_lexer(< span class = "keyword" > const< / span > std::string& fname);< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "comment" > /* If the Lexer is lexing an impòrted file, give it the location in the parent file at which it was imported. */< / span > < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > assign_parent_location(std::unique_ptr< Lexer> & lexer, < span class = "keyword" > const< / span > std::shared_ptr< Location> & loc);< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   };< / div >
< div class = "ttc" id = "aclassLexer_html" > < div class = "ttname" > < a href = "classLexer.html" > Lexer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > Lexer.h:14< / div > < / div >
< div class = "ttc" id = "astructLocation_html" > < div class = "ttname" > < a href = "structLocation.html" > Location< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > Location.h:6< / div > < / div >
< div class = "ttc" id = "astructToken_html" > < div class = "ttname" > < a href = "structToken.html" > Token< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > Token.h:54< / div > < / div >
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