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%{
#include <stdio.h>
#include <stdlib.h>
#include "linenoise/linenoise.h"
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) result = mygetinput(buf, max_size);
// lineno de kubetu?
static int mygetinput(char *buf, int size) {
char *line;
if (feof(yyin)) return YY_NULL;
if (yyin!=stdin) {
int len;
char ch;
for (len = 0; len < size; len++) {
ch = getc(yyin);
if (ch == EOF)
break;
buf[len] = ch;
}
return len;
}
if (yylineno == 1) {
line = linenoise(">>> ");
} else {
line = linenoise("... ");
}
if(!line) return YY_NULL;
if(strlen(line) > size-2){
fprintf(stderr,"input line too long\n"); return YY_NULL; }
sprintf(buf,"%s\n",line);
linenoiseHistoryAdd(line);
//linenoiseHistorySave(".inpla.history.txt");
free(line);
return strlen(buf);
}
//#undef YY_INPUT
//#define YYINPUT(buf, result, max_size) result = (c == EOF) ? YY_NULL : (buf[0] = c, 1);
/************************************
Strings
*************************************/
#define MAX_STRING_LENGTH 1024
static char ParseStringBuffer[MAX_STRING_LENGTH];
static int nextPtr_ParseStringBuffer = 0;
void Parse_StringBuffer_reInit() {
nextPtr_ParseStringBuffer = 0;
}
void Parse_addString(char ch) {
ParseStringBuffer[nextPtr_ParseStringBuffer] = ch;
nextPtr_ParseStringBuffer++;
}
char *Parse_closeStringBuffer() {
char *ret;
ParseStringBuffer[nextPtr_ParseStringBuffer]='\0';
ret = ParseStringBuffer;
return ret;
}
%}
%option nounput
%option yylineno
%option noyywrap
%x STRING_STATE COM_STATE
%%
<INITIAL>";" return (DELIMITER);
<INITIAL>":" return (COLON);
<INITIAL>"(" return (LP);
<INITIAL>")" return (RP);
<INITIAL>"{" return LC;
<INITIAL>"}" return RC;
<INITIAL>"[" return LB;
<INITIAL>"]" return RB;
<INITIAL>"," return (COMMA);
<INITIAL>"><" return (CROSS);
<INITIAL>"=>" return (TO);
<INITIAL>"~" return (CNCT);
<INITIAL>"-" return (SUB);
<INITIAL>"|" return(PIPE);
<INITIAL>"&" return(AMP);
<INITIAL>"=" return(LD);
<INITIAL>"==" return(EQUAL);
<INITIAL>"!=" return(NE);
<INITIAL>">" return(GT);
<INITIAL>">=" return(GE);
<INITIAL>"<" return(LT);
<INITIAL>"<=" return(LE);
<INITIAL>"+" return (ADD);
<INITIAL>"*" return (MUL);
<INITIAL>"/" return (DIV);
<INITIAL>"%" return (MOD);
<INITIAL>"_" return (ANY);
<INITIAL>"?" return (QUE);
<INITIAL>"int" return(INT);
<INITIAL>"let" return(LET);
<INITIAL>"in" return(IN);
<INITIAL>"end" return(END);
<INITIAL>"where" return(WHERE);
<INITIAL>"if" return(IF);
<INITIAL>"then" return(THEN);
<INITIAL>"else" return(ELSE);
<INITIAL>"interface" return(INTERFACE);
<INITIAL>"ifce" return(IFCE);
<INITIAL>"prnat" return(PRNAT);
<INITIAL>"free" return(FREE);
<INITIAL>"exit" return(EXIT);
<INITIAL>"rand" return(RAND);
<INITIAL>"const" return(DEF);
<INITIAL>"use" return(USE);
<INITIAL>"*L" return(ANNOTATE_L);
<INITIAL>"*R" return(ANNOTATE_R);
<INITIAL>[a-z][a-zA-Z0-9_'\.]* { yylval.chval = strdup(yytext);
return (NAME);}
<INITIAL>[_A-Z][a-zA-Z0-9_'\.]* { yylval.chval = strdup(yytext);
return (AGENT);}
<INITIAL>[0-9]+ { yylval.intval = atoi(yytext);
return (INT_LITERAL);}
<INITIAL>"//"[^\n]* ; //comment
<INITIAL>"/*" BEGIN(COM_STATE);
<COM_STATE>. ;
<COM_STATE>\n ;
<COM_STATE>"*/" BEGIN INITIAL; //comment
<INITIAL>\r\n {}
<INITIAL>[\n|\r] {}
<INITIAL>[ \t]+ ;
<INITIAL><<EOF>> {return END_OF_FILE;}
<INITIAL>\" {
Parse_StringBuffer_reInit();
BEGIN STRING_STATE;
}
<INITIAL>. {return yytext[0];}
<STRING_STATE>\" {
yylval.chval = strdup(Parse_closeStringBuffer());
BEGIN INITIAL;
return STRING_LITERAL;
}
<STRING_STATE>\n {
// Parse_addString('\n');
yyerror("Unterminated string");
BEGIN(INITIAL);
return DELIMITER;
}
<STRING_STATE>\\\" Parse_addString('"');
<STRING_STATE>\\n Parse_addString('\n');
<STRING_STATE>\\t Parse_addString('\t');
<STRING_STATE>\\\\ Parse_addString('\\');
<STRING_STATE>. Parse_addString(yytext[0]);
%%
void pushFP(FILE *fp) {
yypush_buffer_state(yy_create_buffer(fp, YY_BUF_SIZE));
}
int popFP() {
yypop_buffer_state();
if (! YY_CURRENT_BUFFER ) {
yyterminate();
return 0;
}
return 1;
}
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