50 lines
1.6 KiB
Plaintext
50 lines
1.6 KiB
Plaintext
%option noyywrap
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%option reentrant
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%option header-file="scanner.hpp"
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%{
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#include <iostream>
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#include "ast.hpp"
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#include "definition.hpp"
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#include "parse_driver.hpp"
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#include "parser.hpp"
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#define YY_USER_ACTION \
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drv.get_file_manager().write(yytext, yyleng); \
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LOC.step(); LOC.columns(yyleng);
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#define LOC drv.get_current_location()
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%}
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%%
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\n { drv.get_current_location().lines(); drv.get_file_manager().mark_line(); }
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[ ]+ {}
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\\ { return yy::parser::make_BACKSLASH(LOC); }
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\+ { return yy::parser::make_PLUS(LOC); }
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\* { return yy::parser::make_TIMES(LOC); }
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- { return yy::parser::make_MINUS(LOC); }
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\/ { return yy::parser::make_DIVIDE(LOC); }
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% { return yy::parser::make_MODULO(LOC); }
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== { return yy::parser::make_EQUALS(LOC); }
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\<= { return yy::parser::make_LESS_EQUALS(LOC); }
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` { return yy::parser::make_BACKTICK(LOC); }
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[0-9]+ { return yy::parser::make_INT(atoi(yytext), LOC); }
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defn { return yy::parser::make_DEFN(LOC); }
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data { return yy::parser::make_DATA(LOC); }
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case { return yy::parser::make_CASE(LOC); }
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of { return yy::parser::make_OF(LOC); }
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let { return yy::parser::make_LET(LOC); }
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in { return yy::parser::make_IN(LOC); }
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\{ { return yy::parser::make_OCURLY(LOC); }
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\} { return yy::parser::make_CCURLY(LOC); }
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\( { return yy::parser::make_OPAREN(LOC); }
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\) { return yy::parser::make_CPAREN(LOC); }
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, { return yy::parser::make_COMMA(LOC); }
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-> { return yy::parser::make_ARROW(LOC); }
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= { return yy::parser::make_EQUAL(LOC); }
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[a-z][a-zA-Z]* { return yy::parser::make_LID(std::string(yytext), LOC); }
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[A-Z][a-zA-Z]* { return yy::parser::make_UID(std::string(yytext), LOC); }
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<<EOF>> { return yy::parser::make_YYEOF(LOC); }
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%%
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