javascript-database/js.l at master · malbrain/javascript-database · GitHub

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%{
#undef YYSTYPE

#include"js.h"
#include"js.tab.h"
#include"js_malloc.h"

#undef YY_BUF_SIZE
#defineYY_BUF_SIZE (16384 - sizeof(rawobj_t) - 2)

void *yyalloc (yy_size_t size,yyscan_t yyscanner ) {
returnjs_alloc((uint32_t)size, false);
}

void *yyrealloc (void *old,yy_size_t size,yyscan_t yyscanner ) {
returnjs_realloc(old, (uint32_t *)&size, false);
}

voidyyfree (void *old,yyscan_t yyscanner ) {
if (old)
js_free(old);
}

#defineYY_DECLint yylex \
	(YYSTYPE * yylval_param, yyscan_t yyscanner, parseData *pd)
%}

%optionnoyywrapnodefaultreentrantbison-bridgenoinputnounput
%optionnoyyallocnoyyreallocnoyyfree
%optionheader-file="js.lex.h"
%optionextra-type="parseData*"

EXP ([Ee][-+]?[0-9]+)

%%

/* single charater ops */
"+" { returnPLUS; }
"-" { returnMINUS; }
"*" { returnMPY; }
"/" { returnDIV; }
"%" { returnMOD; }
"=" { returnASSIGN; }
"+=" { returnPLUS_ASSIGN; }
"-=" { returnMINUS_ASSIGN; }
"*=" { returnMPY_ASSIGN; }
"&=" { returnAND_ASSIGN; }
"^=" { returnXOR_ASSIGN; }
"|=" { returnOR_ASSIGN; }
"/=" { returnDIV_ASSIGN; }
"%=" { returnMOD_ASSIGN; }
"<<=" { returnLSHIFT_ASSIGN; }
">>=" { returnRSHIFT_ASSIGN; }
"," { returnCOMMA; }
";" { returnSEMI; }
"(" { returnLPAR; }
")" { returnRPAR; }
"{" { returnLBRACE; }
"}" { returnRBRACE; }
"[" { returnLBRACK; }
"]" { returnRBRACK; }
":" { returnCOLON; }
"." { returnDOT; }
"!" { returnNOT; }
"?" { returnTERN; }

"~" { returnBITNOT; }
"&" { returnBITAND; }
"^" { returnBITXOR; }
"|" { returnBITOR; }

"++" { returnINCR; }
"--" { returnDECR; }
"<" { returnLT; }
"<=" { returnLE; }
"==" { returnEQ; }
"!=" { returnNEQ; }
">=" { returnGE; }
">" { returnGT; }
">>" { returnRSHIFT; }
">>>" { returnRUSHIFT; }
"<<" { returnLSHIFT; }
"||" { returnLOR; }
"&&" { returnLAND; }
"!==" { returnNOTIDENTICAL; };
"===" { returnIDENTICAL; };
"|>" { returnPIPE; }

/* keywords */
"if" { returnIF; }
"else" { returnELSE; }
"while" { returnWHILE; }
"do" { returnDO; }
"for" { returnFOR; }
"function"	{ returnFCN; }
"var" { returnVAR; }
"let" { returnLET; }
"new" { returnNEW; }
"return"	{ returnRETURN; }
"continue"	{ returnCONTINUE; }
"break" { returnBREAK; }
"enum" { returnENUM; }
"typeof"	{ returnTYPEOF; }
"in" { returnFORIN; }
"of" { returnFOROF; }
"try" { returnTRY; }
"catch" { returnCATCH; }
"finally"	{ returnFINALLY; }
"throw" { returnTHROW; }
"delete"	{ returnDEL; }

"arguments"	{
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->hdr->aux = nn_args;
returnNUM;
	}

"this"	{
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->hdr->aux = nn_this;
returnNUM;
	}

/* booleans */

"false"	{
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->hdr->aux = nn_bool;
 nn->boolval = false;
returnNUM;
	}

"true"	{
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->hdr->aux = nn_bool;
 nn->boolval = true;
returnNUM;
	}

"undefined"	{
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->hdr->aux = nn_undef;
returnNUM;
	}

"Infinity"	{
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->hdr->aux = nn_infinity;
returnNUM;
	}

"null"	{
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->hdr->aux = nn_null;
returnNUM;
	}

/* names */
[a-zA-Z$_][a-zA-Z0-9_]* {
uint32_t len = yyleng;
 yylval->slot = newNode(pd, node_string, sizeof(stringNode) + len + 1, false);
 stringNode *sn = (stringNode *)(pd->table + yylval->slot);
memcpy (sn->str.val, yytext, len);
 sn->str.val[len] = 0;
 sn->str.len = len;
returnNAME;
	}

/* strings */
'(\\.|[^\'])*' {
 yylval->slot = newStrNode(pd, yytext, yyleng);
returnSTRING;
	}

\"(\\.|[^\"])*\" {
 yylval->slot = newStrNode(pd, yytext, yyleng);
returnSTRING;
	}

/* single and multi-line comments */
"//".*

"/*"([^*]|(\*+[^*/]))*\*+\/ {
int i;
for (i = 0; i < yyleng; i++)
if (yytext[i] == '\n')
 pd->lineNo++;
	}

/* numbers */
0[bB][0-1]+ {
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->intval = strtoull(yytext, NULL, 2);
 nn->hdr->aux = nn_int;
returnNUM;
	}

0[oO][0-7]+ {
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->intval = strtoull(yytext, NULL, 8);
 nn->hdr->aux = nn_int;
returnNUM;
	}

0[xX][0-9a-fA-F]+ {
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->intval = strtoull(yytext, NULL, 16);
 nn->hdr->aux = nn_int;
returnNUM;
	}

[0-9]+	{
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->intval = strtoll(yytext, NULL, 10);
 nn->hdr->aux = nn_int;
returnNUM;
	}

[0-9]+{EXP} {
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->dblval = atof(yytext);
 nn->hdr->aux = nn_dbl;
returnNUM;
	}
[0-9]+"."[0-9]* {
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->dblval = atof(yytext);
 nn->hdr->aux = nn_dbl;
returnNUM;
	}
[0-9]+"."[0-9]*{EXP} {
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->dblval = atof(yytext);
 nn->hdr->aux = nn_dbl;
returnNUM;
	}
"."[0-9]+ {
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->dblval = atof(yytext);
 nn->hdr->aux = nn_dbl;
returnNUM;
	}
"."[0-9]+{EXP} {
 yylval->slot = newNode(pd, node_num, sizeof(numNode), false);
 numNode *nn = (numNode *)(pd->table + yylval->slot);
 nn->dblval = atof(yytext);
 nn->hdr->aux = nn_dbl;
returnNUM;
	}
/* line numbers */
\n	{
 pd->lineNo++;
	}
/* the rest */
[\t\r] /* ignore whitespace */
. { printf("script: %s line:%d Mystery character <%.2X>\n", pd->script, pd->lineNo, *yytext); }
<<EOF>> { returnEOS; }
%%