diff options
Diffstat (limited to 'pd/extra/expr~/vexp.c')
| -rw-r--r-- | pd/extra/expr~/vexp.c | 3432 |
1 files changed, 1716 insertions, 1716 deletions
diff --git a/pd/extra/expr~/vexp.c b/pd/extra/expr~/vexp.c index c0001e1f..7d4d7b52 100644 --- a/pd/extra/expr~/vexp.c +++ b/pd/extra/expr~/vexp.c @@ -28,16 +28,16 @@ /* "expr~" and "fexpr~" conversion by Shahrokh Yadegari c. 1999,2000 */ /* - * Feb 2002 - added access to variables - * multiple expression support - * new short hand forms for fexpr~ - * now $y or $y1 = $y1[-1] and $y2 = $y2[-1] - * --sdy + * Feb 2002 - added access to variables + * multiple expression support + * new short hand forms for fexpr~ + * now $y or $y1 = $y1[-1] and $y2 = $y2[-1] + * --sdy * * July 2002 - * fixed bugs introduced in last changes in store and ET_EQ - * --sdy - * + * fixed bugs introduced in last changes in store and ET_EQ + * --sdy + * */ /* @@ -73,7 +73,7 @@ #include "vexp.h" #ifdef MSP #undef isdigit -#define isdigit(x) (x >= '0' && x <= '9') +#define isdigit(x) (x >= '0' && x <= '9') #endif char *atoif(char *s, long int *value, long int *type); @@ -81,30 +81,30 @@ char *atoif(char *s, long int *value, long int *type); static struct ex_ex *ex_lex(struct expr *expr, long int *n); struct ex_ex *ex_match(struct ex_ex *eptr, long int op); struct ex_ex *ex_parse(struct expr *expr, struct ex_ex *iptr, - struct ex_ex *optr, long int *argc); + struct ex_ex *optr, long int *argc); struct ex_ex *ex_eval(struct expr *expr, struct ex_ex *eptr, - struct ex_ex *optr, int i); + struct ex_ex *optr, int i); int expr_donew(struct expr *exprr, int ac, t_atom *av); struct ex_ex *eval_func(struct expr *expr,struct ex_ex *eptr, - struct ex_ex *optr, int i); + struct ex_ex *optr, int i); struct ex_ex *eval_tab(struct expr *expr, struct ex_ex *eptr, - struct ex_ex *optr, int i); + struct ex_ex *optr, int i); struct ex_ex *eval_var(struct expr *expr, struct ex_ex *eptr, - struct ex_ex *optr, int i); + struct ex_ex *optr, int i); struct ex_ex *eval_store(struct expr *expr, struct ex_ex *eptr, - struct ex_ex *optr, int i); + struct ex_ex *optr, int i); struct ex_ex *eval_sigidx(struct expr *expr, struct ex_ex *eptr, - struct ex_ex *optr, int i); -static int cal_sigidx(struct ex_ex *optr, /* The output value */ - int i, float rem_i, /* integer and fractinal part of index */ - int idx, /* index of current fexpr~ processing */ - int vsize, /* vector size */ - float *curvec, float *prevec); /* current and previous table */ + struct ex_ex *optr, int i); +static int cal_sigidx(struct ex_ex *optr, /* The output value */ + int i, float rem_i, /* integer and fractinal part of index */ + int idx, /* index of current fexpr~ processing */ + int vsize, /* vector size */ + float *curvec, float *prevec); /* current and previous table */ t_ex_func *find_func(char *s); void ex_dzdetect(struct expr *expr); -#define MAX_ARGS 10 +#define MAX_ARGS 10 extern t_ex_func ex_funcs[]; struct ex_ex nullex; @@ -181,7 +181,7 @@ void atom_string(t_atom *a, char *buf, unsigned int bufsize) break; case A_DOLLSYM: sprintf(buf, "$%s", a->a_w.w_symbol->s_name); - break; + break; #else /* MAX */ case A_DOLLAR: sprintf(buf, "$%s", a->a_w.w_symbol->s_name); @@ -194,24 +194,24 @@ void atom_string(t_atom *a, char *buf, unsigned int bufsize) #endif /* MSP */ /* * expr_donew -- create a new "expr" object. - * returns 1 on failure, 0 on success. + * returns 1 on failure, 0 on success. */ int expr_donew(struct expr *expr, int ac, t_atom *av) { - struct ex_ex *list; - struct ex_ex *ret; - long max_node = 0; /* maximum number of nodes needed */ - char *exp_string; - int exp_strlen; - t_binbuf *b; - int i; - - memset(expr->exp_var, 0, MAX_VARS * sizeof (*expr->exp_var)); + struct ex_ex *list; + struct ex_ex *ret; + long max_node = 0; /* maximum number of nodes needed */ + char *exp_string; + int exp_strlen; + t_binbuf *b; + int i; + + memset(expr->exp_var, 0, MAX_VARS * sizeof (*expr->exp_var)); #ifdef PD - b = binbuf_new(); - binbuf_add(b, ac, av); - binbuf_gettext(b, &exp_string, &exp_strlen); + b = binbuf_new(); + binbuf_add(b, ac, av); + binbuf_gettext(b, &exp_string, &exp_strlen); #else /* MSP */ { @@ -246,657 +246,657 @@ expr_donew(struct expr *expr, int ac, t_atom *av) exp_strlen = length; } #endif - exp_string = (char *)t_resizebytes(exp_string, exp_strlen,exp_strlen+1); - exp_string[exp_strlen] = 0; - expr->exp_string = exp_string; - expr->exp_str = exp_string; - expr->exp_nexpr = 0; - ret = (struct ex_ex *) 0; - /* - * if ret == 0 it means that we have no expression - * so we let the pass go through to build a single null stack - */ - while (*expr->exp_str || !ret) { - list = ex_lex(expr, &max_node); - if (!list) { /* syntax error */ - goto error; - } - expr->exp_stack[expr->exp_nexpr] = - (struct ex_ex *)fts_malloc(max_node * sizeof (struct ex_ex)); - expr->exp_nexpr++; - ret = ex_match(list, (long)0); - if (!ret) /* syntax error */ - goto error; - ret = ex_parse(expr, - list, expr->exp_stack[expr->exp_nexpr - 1], (long *)0); - if (!ret) - goto error; - } - *ret = nullex; - t_freebytes(exp_string, exp_strlen+1); - return (0); + exp_string = (char *)t_resizebytes(exp_string, exp_strlen,exp_strlen+1); + exp_string[exp_strlen] = 0; + expr->exp_string = exp_string; + expr->exp_str = exp_string; + expr->exp_nexpr = 0; + ret = (struct ex_ex *) 0; + /* + * if ret == 0 it means that we have no expression + * so we let the pass go through to build a single null stack + */ + while (*expr->exp_str || !ret) { + list = ex_lex(expr, &max_node); + if (!list) { /* syntax error */ + goto error; + } + expr->exp_stack[expr->exp_nexpr] = + (struct ex_ex *)fts_malloc(max_node * sizeof (struct ex_ex)); + expr->exp_nexpr++; + ret = ex_match(list, (long)0); + if (!ret) /* syntax error */ + goto error; + ret = ex_parse(expr, + list, expr->exp_stack[expr->exp_nexpr - 1], (long *)0); + if (!ret) + goto error; + } + *ret = nullex; + t_freebytes(exp_string, exp_strlen+1); + return (0); error: - for (i = 0; i < expr->exp_nexpr; i++) { - fts_free(expr->exp_stack[i]); - expr->exp_stack[i] = 0; - } - expr->exp_nexpr = 0; - if (list) - fts_free(list); - t_freebytes(exp_string, exp_strlen+1); - return (1); + for (i = 0; i < expr->exp_nexpr; i++) { + fts_free(expr->exp_stack[i]); + expr->exp_stack[i] = 0; + } + expr->exp_nexpr = 0; + if (list) + fts_free(list); + t_freebytes(exp_string, exp_strlen+1); + return (1); } /* * ex_lex -- This routine is a bit more than a lexical parser since it will - * also do some syntax checking. It reads the string s and will - * return a linked list of struct ex_ex. - * It will also put the number of the nodes in *n. + * also do some syntax checking. It reads the string s and will + * return a linked list of struct ex_ex. + * It will also put the number of the nodes in *n. */ struct ex_ex * ex_lex(struct expr *expr, long int *n) { - struct ex_ex *list_arr; - struct ex_ex *exptr; - long non = 0; /* number of nodes */ - long maxnode = 0; - - list_arr = (struct ex_ex *)fts_malloc(sizeof (struct ex_ex) * MINODES); - if (! list_arr) { - post("ex_lex: no mem\n"); - return ((struct ex_ex *)0); - } - exptr = list_arr; - maxnode = MINODES; - - while (8) - { - if (non >= maxnode) { - maxnode += MINODES; - - list_arr = fts_realloc((void *)list_arr, - sizeof (struct ex_ex) * maxnode); - if (!list_arr) { - post("ex_lex: no mem\n"); - return ((struct ex_ex *)0); - } - exptr = &(list_arr)[non]; - } - - if (getoken(expr, exptr)) { - fts_free(list_arr); - return ((struct ex_ex *)0); - } - non++; - - if (!exptr->ex_type) - break; - - exptr++; - } - *n = non; - - return list_arr; + struct ex_ex *list_arr; + struct ex_ex *exptr; + long non = 0; /* number of nodes */ + long maxnode = 0; + + list_arr = (struct ex_ex *)fts_malloc(sizeof (struct ex_ex) * MINODES); + if (! list_arr) { + post("ex_lex: no mem\n"); + return ((struct ex_ex *)0); + } + exptr = list_arr; + maxnode = MINODES; + + while (8) + { + if (non >= maxnode) { + maxnode += MINODES; + + list_arr = fts_realloc((void *)list_arr, + sizeof (struct ex_ex) * maxnode); + if (!list_arr) { + post("ex_lex: no mem\n"); + return ((struct ex_ex *)0); + } + exptr = &(list_arr)[non]; + } + + if (getoken(expr, exptr)) { + fts_free(list_arr); + return ((struct ex_ex *)0); + } + non++; + + if (!exptr->ex_type) + break; + + exptr++; + } + *n = non; + + return list_arr; } /* * ex_match -- this routine walks through the eptr and matches the * perentheses and brackets, it also converts the function - * names to a pointer to the describing structure of the - * specified function + * names to a pointer to the describing structure of the + * specified function */ /* operator to match */ struct ex_ex * ex_match(struct ex_ex *eptr, long int op) { - int firstone = 1; - struct ex_ex *ret; - t_ex_func *fun; - - for (; 8; eptr++, firstone = 0) { - switch (eptr->ex_type) { - case 0: - if (!op) - return (eptr); - post("expr syntax error: an open %s not matched\n", - op == OP_RP ? "parenthesis" : "bracket"); - return (exNULL); - case ET_INT: - case ET_FLT: - case ET_II: - case ET_FI: - case ET_SI: - case ET_VI: - case ET_SYM: - case ET_VSYM: - continue; - case ET_YO: - if (eptr[1].ex_type != ET_OP || eptr[1].ex_op != OP_LB) - eptr->ex_type = ET_YOM1; - continue; - case ET_XI: - if (eptr[1].ex_type != ET_OP || eptr[1].ex_op != OP_LB) - eptr->ex_type = ET_XI0; - continue; - case ET_TBL: - case ET_FUNC: - case ET_LP: - /* CHANGE - case ET_RP: - */ - case ET_LB: - /* CHANGE - case ET_RB: - */ - post("ex_match: unexpected type, %ld\n", eptr->ex_type); - return (exNULL); - case ET_OP: - if (op == eptr->ex_op) - return (eptr); - /* - * if we are looking for a right peranthesis - * or a right bracket and find the other kind, - * it has to be a syntax error - */ - if ((eptr->ex_op == OP_RP && op == OP_RB) || - (eptr->ex_op == OP_RB && op == OP_RP)) { - post("expr syntax error: prenthesis or brackets not matched\n"); - return (exNULL); - } - /* - * Up to now we have marked the unary minuses as - * subrtacts. Any minus that is the first one in - * chain or is preceeded by anything except ')' and - * ']' is a unary minus. - */ - if (eptr->ex_op == OP_SUB) { - ret = eptr - 1; - if (firstone || (ret->ex_type == ET_OP && - ret->ex_op != OP_RB && ret->ex_op != OP_RP)) - eptr->ex_op = OP_UMINUS; - } else if (eptr->ex_op == OP_LP) { - ret = ex_match(eptr + 1, OP_RP); - if (!ret) - return (ret); - eptr->ex_type = ET_LP; - eptr->ex_ptr = (char *) ret; - eptr = ret; - } else if (eptr->ex_op == OP_LB) { - ret = ex_match(eptr + 1, OP_RB); - if (!ret) - return (ret); - eptr->ex_type = ET_LB; - eptr->ex_ptr = (char *) ret; - eptr = ret; - } - continue; - case ET_STR: - if (eptr[1].ex_op == OP_LB) { - char *tmp; - - eptr->ex_type = ET_TBL; - tmp = eptr->ex_ptr; - if (ex_getsym(tmp, (t_symbol **)&(eptr->ex_ptr))) { - post("expr: syntax error: problms with ex_getsym\n"); - return (exNULL); - } - fts_free((void *)tmp); - } else if (eptr[1].ex_op == OP_LP) { - fun = find_func(eptr->ex_ptr); - if (!fun) { - post( - "expr: error: function %s not found\n", - eptr->ex_ptr); - return (exNULL); - } - eptr->ex_type = ET_FUNC; - eptr->ex_ptr = (char *) fun; - } else { - char *tmp; - - if (eptr[1].ex_type && eptr[1].ex_type!=ET_OP){ - post("expr: syntax error: bad string '%s'\n", eptr->ex_ptr); - return (exNULL); - } - /* it is a variable */ - eptr->ex_type = ET_VAR; - tmp = eptr->ex_ptr; - if (ex_getsym(tmp, - (t_symbol **)&(eptr->ex_ptr))) { - post("expr: variable '%s' not found",tmp); - return (exNULL); - } - } - continue; - default: - post("ex_match: bad type\n"); - return (exNULL); - } - } - /* NOTREACHED */ + int firstone = 1; + struct ex_ex *ret; + t_ex_func *fun; + + for (; 8; eptr++, firstone = 0) { + switch (eptr->ex_type) { + case 0: + if (!op) + return (eptr); + post("expr syntax error: an open %s not matched\n", + op == OP_RP ? "parenthesis" : "bracket"); + return (exNULL); + case ET_INT: + case ET_FLT: + case ET_II: + case ET_FI: + case ET_SI: + case ET_VI: + case ET_SYM: + case ET_VSYM: + continue; + case ET_YO: + if (eptr[1].ex_type != ET_OP || eptr[1].ex_op != OP_LB) + eptr->ex_type = ET_YOM1; + continue; + case ET_XI: + if (eptr[1].ex_type != ET_OP || eptr[1].ex_op != OP_LB) + eptr->ex_type = ET_XI0; + continue; + case ET_TBL: + case ET_FUNC: + case ET_LP: + /* CHANGE + case ET_RP: + */ + case ET_LB: + /* CHANGE + case ET_RB: + */ + post("ex_match: unexpected type, %ld\n", eptr->ex_type); + return (exNULL); + case ET_OP: + if (op == eptr->ex_op) + return (eptr); + /* + * if we are looking for a right peranthesis + * or a right bracket and find the other kind, + * it has to be a syntax error + */ + if ((eptr->ex_op == OP_RP && op == OP_RB) || + (eptr->ex_op == OP_RB && op == OP_RP)) { + post("expr syntax error: prenthesis or brackets not matched\n"); + return (exNULL); + } + /* + * Up to now we have marked the unary minuses as + * subrtacts. Any minus that is the first one in + * chain or is preceeded by anything except ')' and + * ']' is a unary minus. + */ + if (eptr->ex_op == OP_SUB) { + ret = eptr - 1; + if (firstone || (ret->ex_type == ET_OP && + ret->ex_op != OP_RB && ret->ex_op != OP_RP)) + eptr->ex_op = OP_UMINUS; + } else if (eptr->ex_op == OP_LP) { + ret = ex_match(eptr + 1, OP_RP); + if (!ret) + return (ret); + eptr->ex_type = ET_LP; + eptr->ex_ptr = (char *) ret; + eptr = ret; + } else if (eptr->ex_op == OP_LB) { + ret = ex_match(eptr + 1, OP_RB); + if (!ret) + return (ret); + eptr->ex_type = ET_LB; + eptr->ex_ptr = (char *) ret; + eptr = ret; + } + continue; + case ET_STR: + if (eptr[1].ex_op == OP_LB) { + char *tmp; + + eptr->ex_type = ET_TBL; + tmp = eptr->ex_ptr; + if (ex_getsym(tmp, (t_symbol **)&(eptr->ex_ptr))) { + post("expr: syntax error: problms with ex_getsym\n"); + return (exNULL); + } + fts_free((void *)tmp); + } else if (eptr[1].ex_op == OP_LP) { + fun = find_func(eptr->ex_ptr); + if (!fun) { + post( + "expr: error: function %s not found\n", + eptr->ex_ptr); + return (exNULL); + } + eptr->ex_type = ET_FUNC; + eptr->ex_ptr = (char *) fun; + } else { + char *tmp; + + if (eptr[1].ex_type && eptr[1].ex_type!=ET_OP){ + post("expr: syntax error: bad string '%s'\n", eptr->ex_ptr); + return (exNULL); + } + /* it is a variable */ + eptr->ex_type = ET_VAR; + tmp = eptr->ex_ptr; + if (ex_getsym(tmp, + (t_symbol **)&(eptr->ex_ptr))) { + post("expr: variable '%s' not found",tmp); + return (exNULL); + } + } + continue; + default: + post("ex_match: bad type\n"); + return (exNULL); + } + } + /* NOTREACHED */ } /* * ex_parse -- This function if called when we have already done some - * parsing on the expression, and we have already matched - * our brackets and parenthesis. The main job of this - * function is to convert the infix expression to the - * prefix form. - * First we find the operator with the lowest precedence and - * put it on the stack ('optr', it is really just an array), then - * we call ourself (ex_parse()), on its arguments (unary operators - * only have one operator.) - * When "argc" is set it means that we are parsing the arguments - * of a function and we will increment *argc anytime we find - * a a segment that can qualify as an argument (counting commas). + * parsing on the expression, and we have already matched + * our brackets and parenthesis. The main job of this + * function is to convert the infix expression to the + * prefix form. + * First we find the operator with the lowest precedence and + * put it on the stack ('optr', it is really just an array), then + * we call ourself (ex_parse()), on its arguments (unary operators + * only have one operator.) + * When "argc" is set it means that we are parsing the arguments + * of a function and we will increment *argc anytime we find + * a a segment that can qualify as an argument (counting commas). * - * returns 0 on syntax error + * returns 0 on syntax error */ /* number of argument separated by comma */ struct ex_ex * ex_parse(struct expr *x, struct ex_ex *iptr, struct ex_ex *optr, long int *argc) { - struct ex_ex *eptr; - struct ex_ex *lowpre = 0; /* pointer to the lowest precedence */ - struct ex_ex savex; - long pre = HI_PRE; - long count; - - if (!iptr) { - post("ex_parse: input is null, iptr = 0x%lx\n", iptr); - return (exNULL); - } - if (!iptr->ex_type) - return (exNULL); - - /* - * the following loop finds the lowest precedence operator in the - * the input token list, comma is explicitly checked here since - * that is a special operator and is only legal in functions - */ - for (eptr = iptr, count = 0; eptr->ex_type; eptr++, count++) - switch (eptr->ex_type) { - case ET_SYM: - case ET_VSYM: - if (!argc) { - post("expr: syntax error: symbols allowed for functions only\n"); - ex_print(eptr); - return (exNULL); - } - case ET_INT: - case ET_FLT: - case ET_II: - case ET_FI: - case ET_XI0: - case ET_YOM1: - case ET_VI: - case ET_VAR: - if (!count && !eptr[1].ex_type) { - *optr++ = *eptr; - return (optr); - } - break; - case ET_XI: - case ET_YO: - case ET_SI: - case ET_TBL: - if (eptr[1].ex_type != ET_LB) { - post("expr: syntax error: brackets missing\n"); - ex_print(eptr); - return (exNULL); - } - /* if this table is the only token, parse the table */ - if (!count && - !((struct ex_ex *) eptr[1].ex_ptr)[1].ex_type) { - savex = *((struct ex_ex *) eptr[1].ex_ptr); - *((struct ex_ex *) eptr[1].ex_ptr) = nullex; - *optr++ = *eptr; - lowpre = ex_parse(x, &eptr[2], optr, (long *)0); - *((struct ex_ex *) eptr[1].ex_ptr) = savex; - return(lowpre); - } - eptr = (struct ex_ex *) eptr[1].ex_ptr; - break; - case ET_OP: - if (eptr->ex_op == OP_COMMA) { - if (!argc || !count || !eptr[1].ex_type) { - post("expr: syntax error: illegal comma\n"); - ex_print(eptr[1].ex_type ? eptr : iptr); - return (exNULL); - } - } - if (!eptr[1].ex_type) { - post("expr: syntax error: missing operand\n"); - ex_print(iptr); - return (exNULL); - } - if ((eptr->ex_op & PRE_MASK) <= pre) { - pre = eptr->ex_op & PRE_MASK; - lowpre = eptr; - } - break; - case ET_FUNC: - if (eptr[1].ex_type != ET_LP) { - post("expr: ex_parse: no parenthesis\n"); - return (exNULL); - } - /* if this function is the only token, parse it */ - if (!count && - !((struct ex_ex *) eptr[1].ex_ptr)[1].ex_type) { - long ac; - - if (eptr[1].ex_ptr == (char *) &eptr[2]) { - post("expr: syntax error: missing argument\n"); - ex_print(eptr); - return (exNULL); - } - ac = 0; - savex = *((struct ex_ex *) eptr[1].ex_ptr); - *((struct ex_ex *) eptr[1].ex_ptr) = nullex; - *optr++ = *eptr; - lowpre = ex_parse(x, &eptr[2], optr, &ac); - if (!lowpre) - return (exNULL); - ac++; - if (ac != - ((t_ex_func *)eptr->ex_ptr)->f_argc){ - post("expr: syntax error: function '%s' needs %ld arguments\n", - ((t_ex_func *)eptr->ex_ptr)->f_name, - ((t_ex_func *)eptr->ex_ptr)->f_argc); - return (exNULL); - } - *((struct ex_ex *) eptr[1].ex_ptr) = savex; - return (lowpre); - } - eptr = (struct ex_ex *) eptr[1].ex_ptr; - break; - case ET_LP: - case ET_LB: - if (!count && - !((struct ex_ex *) eptr->ex_ptr)[1].ex_type) { - if (eptr->ex_ptr == (char *)(&eptr[1])) { - post("expr: syntax error: empty '%s'\n", - eptr->ex_type==ET_LP?"()":"[]"); - ex_print(eptr); - return (exNULL); - } - savex = *((struct ex_ex *) eptr->ex_ptr); - *((struct ex_ex *) eptr->ex_ptr) = nullex; - lowpre = ex_parse(x, &eptr[1], optr, (long *)0); - *((struct ex_ex *) eptr->ex_ptr) = savex; - return (lowpre); - } - eptr = (struct ex_ex *)eptr->ex_ptr; - break; - case ET_STR: - default: - ex_print(eptr); - post("expr: ex_parse: type = 0x%lx\n", eptr->ex_type); - return (exNULL); - } - - if (pre == HI_PRE) { - post("expr: syntax error: missing operation\n"); - ex_print(iptr); - return (exNULL); - } - if (count < 2) { - post("expr: syntax error: mission operand\n"); - ex_print(iptr); - return (exNULL); - } - if (count == 2) { - if (lowpre != iptr) { - post("expr: ex_parse: unary operator should be first\n"); - return (exNULL); - } - if (!unary_op(lowpre->ex_op)) { - post("expr: syntax error: not a uniary operator\n"); - ex_print(iptr); - return (exNULL); - } - *optr++ = *lowpre; - eptr = ex_parse(x, &lowpre[1], optr, argc); - return (eptr); - } - if (lowpre == iptr) { - post("expr: syntax error: mission operand\n"); - ex_print(iptr); - return (exNULL); - } - savex = *lowpre; - *lowpre = nullex; - if (savex.ex_op != OP_COMMA) - *optr++ = savex; - else - (*argc)++; - eptr = ex_parse(x, iptr, optr, argc); - if (eptr) { - eptr = ex_parse(x, &lowpre[1], eptr, argc); - *lowpre = savex; - } - return (eptr); + struct ex_ex *eptr; + struct ex_ex *lowpre = 0; /* pointer to the lowest precedence */ + struct ex_ex savex; + long pre = HI_PRE; + long count; + + if (!iptr) { + post("ex_parse: input is null, iptr = 0x%lx\n", iptr); + return (exNULL); + } + if (!iptr->ex_type) + return (exNULL); + + /* + * the following loop finds the lowest precedence operator in the + * the input token list, comma is explicitly checked here since + * that is a special operator and is only legal in functions + */ + for (eptr = iptr, count = 0; eptr->ex_type; eptr++, count++) + switch (eptr->ex_type) { + case ET_SYM: + case ET_VSYM: + if (!argc) { + post("expr: syntax error: symbols allowed for functions only\n"); + ex_print(eptr); + return (exNULL); + } + case ET_INT: + case ET_FLT: + case ET_II: + case ET_FI: + case ET_XI0: + case ET_YOM1: + case ET_VI: + case ET_VAR: + if (!count && !eptr[1].ex_type) { + *optr++ = *eptr; + return (optr); + } + break; + case ET_XI: + case ET_YO: + case ET_SI: + case ET_TBL: + if (eptr[1].ex_type != ET_LB) { + post("expr: syntax error: brackets missing\n"); + ex_print(eptr); + return (exNULL); + } + /* if this table is the only token, parse the table */ + if (!count && + !((struct ex_ex *) eptr[1].ex_ptr)[1].ex_type) { + savex = *((struct ex_ex *) eptr[1].ex_ptr); + *((struct ex_ex *) eptr[1].ex_ptr) = nullex; + *optr++ = *eptr; + lowpre = ex_parse(x, &eptr[2], optr, (long *)0); + *((struct ex_ex *) eptr[1].ex_ptr) = savex; + return(lowpre); + } + eptr = (struct ex_ex *) eptr[1].ex_ptr; + break; + case ET_OP: + if (eptr->ex_op == OP_COMMA) { + if (!argc || !count || !eptr[1].ex_type) { + post("expr: syntax error: illegal comma\n"); + ex_print(eptr[1].ex_type ? eptr : iptr); + return (exNULL); + } + } + if (!eptr[1].ex_type) { + post("expr: syntax error: missing operand\n"); + ex_print(iptr); + return (exNULL); + } + if ((eptr->ex_op & PRE_MASK) <= pre) { + pre = eptr->ex_op & PRE_MASK; + lowpre = eptr; + } + break; + case ET_FUNC: + if (eptr[1].ex_type != ET_LP) { + post("expr: ex_parse: no parenthesis\n"); + return (exNULL); + } + /* if this function is the only token, parse it */ + if (!count && + !((struct ex_ex *) eptr[1].ex_ptr)[1].ex_type) { + long ac; + + if (eptr[1].ex_ptr == (char *) &eptr[2]) { + post("expr: syntax error: missing argument\n"); + ex_print(eptr); + return (exNULL); + } + ac = 0; + savex = *((struct ex_ex *) eptr[1].ex_ptr); + *((struct ex_ex *) eptr[1].ex_ptr) = nullex; + *optr++ = *eptr; + lowpre = ex_parse(x, &eptr[2], optr, &ac); + if (!lowpre) + return (exNULL); + ac++; + if (ac != + ((t_ex_func *)eptr->ex_ptr)->f_argc){ + post("expr: syntax error: function '%s' needs %ld arguments\n", + ((t_ex_func *)eptr->ex_ptr)->f_name, + ((t_ex_func *)eptr->ex_ptr)->f_argc); + return (exNULL); + } + *((struct ex_ex *) eptr[1].ex_ptr) = savex; + return (lowpre); + } + eptr = (struct ex_ex *) eptr[1].ex_ptr; + break; + case ET_LP: + case ET_LB: + if (!count && + !((struct ex_ex *) eptr->ex_ptr)[1].ex_type) { + if (eptr->ex_ptr == (char *)(&eptr[1])) { + post("expr: syntax error: empty '%s'\n", + eptr->ex_type==ET_LP?"()":"[]"); + ex_print(eptr); + return (exNULL); + } + savex = *((struct ex_ex *) eptr->ex_ptr); + *((struct ex_ex *) eptr->ex_ptr) = nullex; + lowpre = ex_parse(x, &eptr[1], optr, (long *)0); + *((struct ex_ex *) eptr->ex_ptr) = savex; + return (lowpre); + } + eptr = (struct ex_ex *)eptr->ex_ptr; + break; + case ET_STR: + default: + ex_print(eptr); + post("expr: ex_parse: type = 0x%lx\n", eptr->ex_type); + return (exNULL); + } + + if (pre == HI_PRE) { + post("expr: syntax error: missing operation\n"); + ex_print(iptr); + return (exNULL); + } + if (count < 2) { + post("expr: syntax error: mission operand\n"); + ex_print(iptr); + return (exNULL); + } + if (count == 2) { + if (lowpre != iptr) { + post("expr: ex_parse: unary operator should be first\n"); + return (exNULL); + } + if (!unary_op(lowpre->ex_op)) { + post("expr: syntax error: not a uniary operator\n"); + ex_print(iptr); + return (exNULL); + } + *optr++ = *lowpre; + eptr = ex_parse(x, &lowpre[1], optr, argc); + return (eptr); + } + if (lowpre == iptr) { + post("expr: syntax error: mission operand\n"); + ex_print(iptr); + return (exNULL); + } + savex = *lowpre; + *lowpre = nullex; + if (savex.ex_op != OP_COMMA) + *optr++ = savex; + else + (*argc)++; + eptr = ex_parse(x, iptr, optr, argc); + if (eptr) { + eptr = ex_parse(x, &lowpre[1], eptr, argc); + *lowpre = savex; + } + return (eptr); } /* * this is the devide zero check for a a non devide operator */ -#define DZC(ARG1,OPR,ARG2) (ARG1 OPR ARG2) - -#define EVAL(OPR); \ -eptr = ex_eval(expr, ex_eval(expr, eptr, &left, idx), &right, idx); \ -switch (left.ex_type) { \ -case ET_INT: \ - switch(right.ex_type) { \ - case ET_INT: \ - if (optr->ex_type == ET_VEC) { \ - op = optr->ex_vec; \ - scalar = (float)DZC(left.ex_int, OPR, right.ex_int); \ - for (j = 0; j < expr->exp_vsize; j++) \ - *op++ = scalar; \ - } else { \ - optr->ex_type = ET_INT; \ - optr->ex_int = DZC(left.ex_int, OPR, right.ex_int); \ - } \ - break; \ - case ET_FLT: \ - if (optr->ex_type == ET_VEC) { \ - op = optr->ex_vec; \ - scalar = DZC(((float)left.ex_int), OPR, right.ex_flt);\ - for (j = 0; j < expr->exp_vsize; j++) \ - *op++ = scalar; \ - } else { \ - optr->ex_type = ET_FLT; \ - optr->ex_flt = DZC(((float)left.ex_int), OPR, \ - right.ex_flt); \ - } \ - break; \ - case ET_VEC: \ - case ET_VI: \ - if (optr->ex_type != ET_VEC) { \ - if (optr->ex_type == ET_VI) { \ - post("expr~: Int. error %d", __LINE__); \ - abort(); \ - } \ - optr->ex_type = ET_VEC; \ - optr->ex_vec = (t_float *) \ - fts_malloc(sizeof (t_float)*expr->exp_vsize); \ - } \ - scalar = left.ex_int; \ - rp = right.ex_vec; \ - op = optr->ex_vec; \ - for (i = 0; i < expr->exp_vsize; i++) { \ - *op++ = DZC (scalar, OPR, *rp); \ - rp++; \ - } \ - break; \ - case ET_SYM: \ - default: \ - post_error((fts_object_t *) expr, \ - "expr: ex_eval(%d): bad right type %ld\n", \ - __LINE__, right.ex_type); \ - nullret = 1; \ - } \ - break; \ -case ET_FLT: \ - switch(right.ex_type) { \ - case ET_INT: \ - if (optr->ex_type == ET_VEC) { \ - op = optr->ex_vec; \ - scalar = DZC((float) left.ex_flt, OPR, right.ex_int); \ - for (j = 0; j < expr->exp_vsize; j++) \ - *op++ = scalar; \ - } else { \ - optr->ex_type = ET_FLT; \ - optr->ex_flt = DZC(left.ex_flt, OPR, right.ex_int); \ - } \ - break; \ - case ET_FLT: \ - if (optr->ex_type == ET_VEC) { \ - op = optr->ex_vec; \ - scalar = DZC(left.ex_flt, OPR, right.ex_flt); \ - for (j = 0; j < expr->exp_vsize; j++) \ - *op++ = scalar; \ - } else { \ - optr->ex_type = ET_FLT; \ - optr->ex_flt= DZC(left.ex_flt, OPR, right.ex_flt); \ - } \ - break; \ - case ET_VEC: \ - case ET_VI: \ - if (optr->ex_type != ET_VEC) { \ - if (optr->ex_type == ET_VI) { \ - post("expr~: Int. error %d", __LINE__); \ - abort(); \ - } \ - optr->ex_type = ET_VEC; \ - optr->ex_vec = (t_float *) \ - fts_malloc(sizeof (t_float)*expr->exp_vsize); \ - } \ - scalar = left.ex_flt; \ - rp = right.ex_vec; \ - op = optr->ex_vec; \ - for (i = 0; i < expr->exp_vsize; i++) { \ - *op++ = DZC(scalar, OPR, *rp); \ - rp++; \ - } \ - break; \ - case ET_SYM: \ - default: \ - post_error((fts_object_t *) expr, \ - "expr: ex_eval(%d): bad right type %ld\n", \ - __LINE__, right.ex_type); \ - nullret = 1; \ - } \ - break; \ -case ET_VEC: \ -case ET_VI: \ - if (optr->ex_type != ET_VEC) { \ - if (optr->ex_type == ET_VI) { \ - post("expr~: Int. error %d", __LINE__); \ - abort(); \ - } \ - optr->ex_type = ET_VEC; \ - optr->ex_vec = (t_float *) \ - fts_malloc(sizeof (t_float)*expr->exp_vsize); \ - } \ - op = optr->ex_vec; \ - lp = left.ex_vec; \ - switch(right.ex_type) { \ - case ET_INT: \ - scalar = right.ex_int; \ - for (i = 0; i < expr->exp_vsize; i++) { \ - *op++ = DZC(*lp, OPR, scalar); \ - lp++; \ - } \ - break; \ - case ET_FLT: \ - scalar = right.ex_flt; \ - for (i = 0; i < expr->exp_vsize; i++) { \ - *op++ = DZC(*lp, OPR, scalar); \ - lp++; \ - } \ - break; \ - case ET_VEC: \ - case ET_VI: \ - rp = right.ex_vec; \ - for (i = 0; i < expr->exp_vsize; i++) { \ - /* \ - * on a RISC processor one could copy \ - * 8 times in each round to get a considerable \ - * improvement \ - */ \ - *op++ = DZC(*lp, OPR, *rp); \ - rp++; lp++; \ - } \ - break; \ - case ET_SYM: \ - default: \ - post_error((fts_object_t *) expr, \ - "expr: ex_eval(%d): bad right type %ld\n", \ - __LINE__, right.ex_type); \ - nullret = 1; \ - } \ - break; \ -case ET_SYM: \ -default: \ - post_error((fts_object_t *) expr, \ - "expr: ex_eval(%d): bad left type %ld\n", \ - __LINE__, left.ex_type); \ -} \ +#define DZC(ARG1,OPR,ARG2) (ARG1 OPR ARG2) + +#define EVAL(OPR); \ +eptr = ex_eval(expr, ex_eval(expr, eptr, &left, idx), &right, idx); \ +switch (left.ex_type) { \ +case ET_INT: \ + switch(right.ex_type) { \ + case ET_INT: \ + if (optr->ex_type == ET_VEC) { \ + op = optr->ex_vec; \ + scalar = (float)DZC(left.ex_int, OPR, right.ex_int); \ + for (j = 0; j < expr->exp_vsize; j++) \ + *op++ = scalar; \ + } else { \ + optr->ex_type = ET_INT; \ + optr->ex_int = DZC(left.ex_int, OPR, right.ex_int); \ + } \ + break; \ + case ET_FLT: \ + if (optr->ex_type == ET_VEC) { \ + op = optr->ex_vec; \ + scalar = DZC(((float)left.ex_int), OPR, right.ex_flt);\ + for (j = 0; j < expr->exp_vsize; j++) \ + *op++ = scalar; \ + } else { \ + optr->ex_type = ET_FLT; \ + optr->ex_flt = DZC(((float)left.ex_int), OPR, \ + right.ex_flt); \ + } \ + break; \ + case ET_VEC: \ + case ET_VI: \ + if (optr->ex_type != ET_VEC) { \ + if (optr->ex_type == ET_VI) { \ + post("expr~: Int. error %d", __LINE__); \ + abort(); \ + } \ + optr->ex_type = ET_VEC; \ + optr->ex_vec = (t_float *) \ + fts_malloc(sizeof (t_float)*expr->exp_vsize); \ + } \ + scalar = left.ex_int; \ + rp = right.ex_vec; \ + op = optr->ex_vec; \ + for (i = 0; i < expr->exp_vsize; i++) { \ + *op++ = DZC (scalar, OPR, *rp); \ + rp++; \ + } \ + break; \ + case ET_SYM: \ + default: \ + post_error((fts_object_t *) expr, \ + "expr: ex_eval(%d): bad right type %ld\n", \ + __LINE__, right.ex_type); \ + nullret = 1; \ + } \ + break; \ +case ET_FLT: \ + switch(right.ex_type) { \ + case ET_INT: \ + if (optr->ex_type == ET_VEC) { \ + op = optr->ex_vec; \ + scalar = DZC((float) left.ex_flt, OPR, right.ex_int); \ + for (j = 0; j < expr->exp_vsize; j++) \ + *op++ = scalar; \ + } else { \ + optr->ex_type = ET_FLT; \ + optr->ex_flt = DZC(left.ex_flt, OPR, right.ex_int); \ + } \ + break; \ + case ET_FLT: \ + if (optr->ex_type == ET_VEC) { \ + op = optr->ex_vec; \ + scalar = DZC(left.ex_flt, OPR, right.ex_flt); \ + for (j = 0; j < expr->exp_vsize; j++) \ + *op++ = scalar; \ + } else { \ + optr->ex_type = ET_FLT; \ + optr->ex_flt= DZC(left.ex_flt, OPR, right.ex_flt); \ + } \ + break; \ + case ET_VEC: \ + case ET_VI: \ + if (optr->ex_type != ET_VEC) { \ + if (optr->ex_type == ET_VI) { \ + post("expr~: Int. error %d", __LINE__); \ + abort(); \ + } \ + optr->ex_type = ET_VEC; \ + optr->ex_vec = (t_float *) \ + fts_malloc(sizeof (t_float)*expr->exp_vsize); \ + } \ + scalar = left.ex_flt; \ + rp = right.ex_vec; \ + op = optr->ex_vec; \ + for (i = 0; i < expr->exp_vsize; i++) { \ + *op++ = DZC(scalar, OPR, *rp); \ + rp++; \ + } \ + break; \ + case ET_SYM: \ + default: \ + post_error((fts_object_t *) expr, \ + "expr: ex_eval(%d): bad right type %ld\n", \ + __LINE__, right.ex_type); \ + nullret = 1; \ + } \ + break; \ +case ET_VEC: \ +case ET_VI: \ + if (optr->ex_type != ET_VEC) { \ + if (optr->ex_type == ET_VI) { \ + post("expr~: Int. error %d", __LINE__); \ + abort(); \ + } \ + optr->ex_type = ET_VEC; \ + optr->ex_vec = (t_float *) \ + fts_malloc(sizeof (t_float)*expr->exp_vsize); \ + } \ + op = optr->ex_vec; \ + lp = left.ex_vec; \ + switch(right.ex_type) { \ + case ET_INT: \ + scalar = right.ex_int; \ + for (i = 0; i < expr->exp_vsize; i++) { \ + *op++ = DZC(*lp, OPR, scalar); \ + lp++; \ + } \ + break; \ + case ET_FLT: \ + scalar = right.ex_flt; \ + for (i = 0; i < expr->exp_vsize; i++) { \ + *op++ = DZC(*lp, OPR, scalar); \ + lp++; \ + } \ + break; \ + case ET_VEC: \ + case ET_VI: \ + rp = right.ex_vec; \ + for (i = 0; i < expr->exp_vsize; i++) { \ + /* \ + * on a RISC processor one could copy \ + * 8 times in each round to get a considerable \ + * improvement \ + */ \ + *op++ = DZC(*lp, OPR, *rp); \ + rp++; lp++; \ + } \ + break; \ + case ET_SYM: \ + default: \ + post_error((fts_object_t *) expr, \ + "expr: ex_eval(%d): bad right type %ld\n", \ + __LINE__, right.ex_type); \ + nullret = 1; \ + } \ + break; \ +case ET_SYM: \ +default: \ + post_error((fts_object_t *) expr, \ + "expr: ex_eval(%d): bad left type %ld\n", \ + __LINE__, left.ex_type); \ +} \ break; /* * evaluate a unary operator, TYPE is applied to float operands */ -#define EVAL_UNARY(OPR, TYPE) \ - eptr = ex_eval(expr, eptr, &left, idx); \ - switch(left.ex_type) { \ - case ET_INT: \ - if (optr->ex_type == ET_VEC) { \ - ex_mkvector(optr->ex_vec,(float)(OPR left.ex_int),\ - expr->exp_vsize);\ - break; \ - } \ - optr->ex_type = ET_INT; \ - optr->ex_int = OPR left.ex_int; \ - break; \ - case ET_FLT: \ - if (optr->ex_type == ET_VEC) { \ - ex_mkvector(optr->ex_vec, OPR (TYPE left.ex_flt),\ - expr->exp_vsize);\ - break; \ - } \ - optr->ex_type = ET_FLT; \ - optr->ex_flt = OPR (TYPE left.ex_flt); \ - break; \ - case ET_VI: \ - case ET_VEC: \ - j = expr->exp_vsize; \ - if (optr->ex_type != ET_VEC) { \ - optr->ex_type = ET_VEC; \ - optr->ex_vec = (t_float *) \ - fts_malloc(sizeof (t_float)*expr->exp_vsize); \ - } \ - op = optr->ex_vec; \ - lp = left.ex_vec; \ - j = expr->exp_vsize; \ - for (i = 0; i < j; i++) \ - *op++ = OPR (TYPE *lp++); \ - break; \ - default: \ - post_error((fts_object_t *) expr, \ - "expr: ex_eval(%d): bad left type %ld\n", \ - __LINE__, left.ex_type); \ - nullret++; \ - } \ - break; +#define EVAL_UNARY(OPR, TYPE) \ + eptr = ex_eval(expr, eptr, &left, idx); \ + switch(left.ex_type) { \ + case ET_INT: \ + if (optr->ex_type == ET_VEC) { \ + ex_mkvector(optr->ex_vec,(float)(OPR left.ex_int),\ + expr->exp_vsize);\ + break; \ + } \ + optr->ex_type = ET_INT; \ + optr->ex_int = OPR left.ex_int; \ + break; \ + case ET_FLT: \ + if (optr->ex_type == ET_VEC) { \ + ex_mkvector(optr->ex_vec, OPR (TYPE left.ex_flt),\ + expr->exp_vsize);\ + break; \ + } \ + optr->ex_type = ET_FLT; \ + optr->ex_flt = OPR (TYPE left.ex_flt); \ + break; \ + case ET_VI: \ + case ET_VEC: \ + j = expr->exp_vsize; \ + if (optr->ex_type != ET_VEC) { \ + optr->ex_type = ET_VEC; \ + optr->ex_vec = (t_float *) \ + fts_malloc(sizeof (t_float)*expr->exp_vsize); \ + } \ + op = optr->ex_vec; \ + lp = left.ex_vec; \ + j = expr->exp_vsize; \ + for (i = 0; i < j; i++) \ + *op++ = OPR (TYPE *lp++); \ + break; \ + default: \ + post_error((fts_object_t *) expr, \ + "expr: ex_eval(%d): bad left type %ld\n", \ + __LINE__, left.ex_type); \ + nullret++; \ + } \ + break; void ex_mkvector(t_float *fp, t_float x, int size) { - while (size--) - *fp++ = x; + while (size--) + *fp++ = x; } /* @@ -905,29 +905,29 @@ ex_mkvector(t_float *fp, t_float x, int size) void ex_dzdetect(struct expr *expr) { - char *etype; - - if (!expr->exp_error & EE_DZ) { - if (IS_EXPR(expr)) - etype = "expr"; - else if (IS_EXPR_TILDE(expr)) - etype = "expr~"; - else if (IS_FEXPR_TILDE(expr)) - etype = "fexpr~"; - else { - post ("expr -- ex_dzdetect internal error"); - etype = ""; - } - post ("%s divide by zero detected", etype); - expr->exp_error |= EE_DZ; - } + char *etype; + + if (!expr->exp_error & EE_DZ) { + if (IS_EXPR(expr)) + etype = "expr"; + else if (IS_EXPR_TILDE(expr)) + etype = "expr~"; + else if (IS_FEXPR_TILDE(expr)) + etype = "fexpr~"; + else { + post ("expr -- ex_dzdetect internal error"); + etype = ""; + } + post ("%s divide by zero detected", etype); + expr->exp_error |= EE_DZ; + } } - + /* * ex_eval -- evaluate the array of prefix expression - * ex_eval returns the pointer to the first unevaluated node - * in the array. This is a recursive routine. + * ex_eval returns the pointer to the first unevaluated node + * in the array. This is a recursive routine. */ /* SDY @@ -944,270 +944,270 @@ ex_eval(struct expr *expr, struct ex_ex *eptr, struct ex_ex *optr, int idx) /* the result pointer */ /* the sample numnber processed for fexpr~ */ { - int i, j; - t_float *lp, *rp, *op; /* left, right, and out pointer to vectors */ - t_float scalar; - int nullret = 0; /* did we have an error */ - struct ex_ex left, right; /* left and right operands */ - - left.ex_type = 0; - left.ex_int = 0; - right.ex_type = 0; - right.ex_int = 0; - - if (!eptr) - return (exNULL); - switch (eptr->ex_type) { - case ET_INT: - if (optr->ex_type == ET_VEC) - ex_mkvector(optr->ex_vec, (float) eptr->ex_int, - expr->exp_vsize); - else - *optr = *eptr; - return (++eptr); - - case ET_FLT: - - if (optr->ex_type == ET_VEC) - ex_mkvector(optr->ex_vec, eptr->ex_flt, expr->exp_vsize); - else - *optr = *eptr; - return (++eptr); - - case ET_SYM: - if (optr->ex_type == ET_VEC) { - post_error((fts_object_t *) expr, - "expr: ex_eval: cannot turn string to vector\n"); - return (exNULL); - } - *optr = *eptr; - return (++eptr); - case ET_II: - if (eptr->ex_int == -1) { - post_error((fts_object_t *) expr, - "expr: ex_eval: inlet number not set\n"); - return (exNULL); - } - if (optr->ex_type == ET_VEC) { - ex_mkvector(optr->ex_vec, - (t_float)expr->exp_var[eptr->ex_int].ex_int, - expr->exp_vsize); - } else { - optr->ex_type = ET_INT; - optr->ex_int = expr->exp_var[eptr->ex_int].ex_int; - } - return (++eptr); - case ET_FI: - if (eptr->ex_int == -1) { - post_error((fts_object_t *) expr, - "expr: ex_eval: inlet number not set\n"); - return (exNULL); - } - if (optr->ex_type == ET_VEC) { - ex_mkvector(optr->ex_vec, - expr->exp_var[eptr->ex_int].ex_flt, expr->exp_vsize); - } else { - optr->ex_type = ET_FLT; - optr->ex_flt = expr->exp_var[eptr->ex_int].ex_flt; - } - return (++eptr); - - case ET_VSYM: - if (optr->ex_type == ET_VEC) { - post_error((fts_object_t *) expr, - "expr: IntErr. vsym in for vec out\n"); - return (exNULL); - } - if (eptr->ex_int == -1) { - post_error((fts_object_t *) expr, - "expr: ex_eval: inlet number not set\n"); - return (exNULL); - } - optr->ex_type = ET_SYM; - optr->ex_ptr = expr->exp_var[eptr->ex_int].ex_ptr; - return(++eptr); - - case ET_VI: - if (optr->ex_type != ET_VEC) - *optr = expr->exp_var[eptr->ex_int]; - else if (optr->ex_vec != expr->exp_var[eptr->ex_int].ex_vec) - memcpy(optr->ex_vec, expr->exp_var[eptr->ex_int].ex_vec, - expr->exp_vsize * sizeof (t_float)); - return(++eptr); - case ET_VEC: - if (optr->ex_type != ET_VEC) { - optr->ex_type = ET_VEC; - optr->ex_vec = eptr->ex_vec; - eptr->ex_type = ET_INT; - eptr->ex_int = 0; - } else if (optr->ex_vec != eptr->ex_vec) { - memcpy(optr->ex_vec, eptr->ex_vec, - expr->exp_vsize * sizeof (t_float)); + int i, j; + t_float *lp, *rp, *op; /* left, right, and out pointer to vectors */ + t_float scalar; + int nullret = 0; /* did we have an error */ + struct ex_ex left, right; /* left and right operands */ + + left.ex_type = 0; + left.ex_int = 0; + right.ex_type = 0; + right.ex_int = 0; + + if (!eptr) + return (exNULL); + switch (eptr->ex_type) { + case ET_INT: + if (optr->ex_type == ET_VEC) + ex_mkvector(optr->ex_vec, (float) eptr->ex_int, + expr->exp_vsize); + else + *optr = *eptr; + return (++eptr); + + case ET_FLT: + + if (optr->ex_type == ET_VEC) + ex_mkvector(optr->ex_vec, eptr->ex_flt, expr->exp_vsize); + else + *optr = *eptr; + return (++eptr); + + case ET_SYM: + if (optr->ex_type == ET_VEC) { + post_error((fts_object_t *) expr, + "expr: ex_eval: cannot turn string to vector\n"); + return (exNULL); + } + *optr = *eptr; + return (++eptr); + case ET_II: + if (eptr->ex_int == -1) { + post_error((fts_object_t *) expr, + "expr: ex_eval: inlet number not set\n"); + return (exNULL); + } + if (optr->ex_type == ET_VEC) { + ex_mkvector(optr->ex_vec, + (t_float)expr->exp_var[eptr->ex_int].ex_int, + expr->exp_vsize); + } else { + optr->ex_type = ET_INT; + optr->ex_int = expr->exp_var[eptr->ex_int].ex_int; + } + return (++eptr); + case ET_FI: + if (eptr->ex_int == -1) { + post_error((fts_object_t *) expr, + "expr: ex_eval: inlet number not set\n"); + return (exNULL); + } + if (optr->ex_type == ET_VEC) { + ex_mkvector(optr->ex_vec, + expr->exp_var[eptr->ex_int].ex_flt, expr->exp_vsize); + } else { + optr->ex_type = ET_FLT; + optr->ex_flt = expr->exp_var[eptr->ex_int].ex_flt; + } + return (++eptr); + + case ET_VSYM: + if (optr->ex_type == ET_VEC) { + post_error((fts_object_t *) expr, + "expr: IntErr. vsym in for vec out\n"); + return (exNULL); + } + if (eptr->ex_int == -1) { + post_error((fts_object_t *) expr, + "expr: ex_eval: inlet number not set\n"); + return (exNULL); + } + optr->ex_type = ET_SYM; + optr->ex_ptr = expr->exp_var[eptr->ex_int].ex_ptr; + return(++eptr); + + case ET_VI: + if (optr->ex_type != ET_VEC) + *optr = expr->exp_var[eptr->ex_int]; + else if (optr->ex_vec != expr->exp_var[eptr->ex_int].ex_vec) + memcpy(optr->ex_vec, expr->exp_var[eptr->ex_int].ex_vec, + expr->exp_vsize * sizeof (t_float)); + return(++eptr); + case ET_VEC: + if (optr->ex_type != ET_VEC) { + optr->ex_type = ET_VEC; + optr->ex_vec = eptr->ex_vec; + eptr->ex_type = ET_INT; + eptr->ex_int = 0; + } else if (optr->ex_vec != eptr->ex_vec) { + memcpy(optr->ex_vec, eptr->ex_vec, + expr->exp_vsize * sizeof (t_float)); /* do we need to free here? or can we free higher up */ /* SDY the next lines do not make sense */ post("calling fts_free\n"); abort(); - fts_free(optr->ex_vec); - optr->ex_type = ET_INT; - eptr->ex_int = 0; - } else { /* this should not happen */ - post("expr int. error, optr->ex_vec = %d",optr->ex_vec); - abort(); - } - return(++eptr); - case ET_XI0: - /* short hand for $x?[0] */ - - /* SDY delete the following check */ - if (!IS_FEXPR_TILDE(expr) || optr->ex_type==ET_VEC) { - post("%d:exp->exp_flags = %d", __LINE__,expr->exp_flags); - abort(); - } - optr->ex_type = ET_FLT; - optr->ex_flt = expr->exp_var[eptr->ex_int].ex_vec[idx]; - return(++eptr); - case ET_YOM1: - /* - * short hand for $y?[-1] - * if we are calculating the first sample of the vector - * we need to look at the previous results buffer - */ - optr->ex_type = ET_FLT; - if (idx == 0) - optr->ex_flt = - expr->exp_p_res[eptr->ex_int][expr->exp_vsize - 1]; - else - optr->ex_flt=expr->exp_tmpres[eptr->ex_int][idx-1]; - return(++eptr); - - case ET_YO: - case ET_XI: - /* SDY delete the following */ - if (!IS_FEXPR_TILDE(expr) || optr->ex_type==ET_VEC) { - post("%d:expr->exp_flags = %d", __LINE__,expr->exp_flags); - abort(); - } - return (eval_sigidx(expr, eptr, optr, idx)); - - case ET_TBL: - case ET_SI: - return (eval_tab(expr, eptr, optr, idx)); - case ET_FUNC: - return (eval_func(expr, eptr, optr, idx)); - case ET_VAR: - return (eval_var(expr, eptr, optr, idx)); - case ET_OP: - break; - case ET_STR: - case ET_LP: - case ET_LB: - default: - post_error((fts_object_t *) expr, - "expr: ex_eval: unexpected type %d\n", eptr->ex_type); - return (exNULL); - } - if (!eptr[1].ex_type) { - post_error((fts_object_t *) expr, - "expr: ex_eval: not enough nodes 1\n"); - return (exNULL); - } - if (!unary_op(eptr->ex_op) && !eptr[2].ex_type) { - post_error((fts_object_t *) expr, - "expr: ex_eval: not enough nodes 2\n"); - return (exNULL); - } - - switch((eptr++)->ex_op) { - case OP_STORE: - return (eval_store(expr, eptr, optr, idx)); - case OP_NOT: - EVAL_UNARY(!, +); - case OP_NEG: - EVAL_UNARY(~, (long)); - case OP_UMINUS: - EVAL_UNARY(-, +); - case OP_MUL: - EVAL(*); - case OP_ADD: - EVAL(+); - case OP_SUB: - EVAL(-); - case OP_LT: - EVAL(<); - case OP_LE: - EVAL(<=); - case OP_GT: - EVAL(>); - case OP_GE: - EVAL(>=); - case OP_EQ: - EVAL(==); - case OP_NE: - EVAL(!=); + fts_free(optr->ex_vec); + optr->ex_type = ET_INT; + eptr->ex_int = 0; + } else { /* this should not happen */ + post("expr int. error, optr->ex_vec = %d",optr->ex_vec); + abort(); + } + return(++eptr); + case ET_XI0: + /* short hand for $x?[0] */ + + /* SDY delete the following check */ + if (!IS_FEXPR_TILDE(expr) || optr->ex_type==ET_VEC) { + post("%d:exp->exp_flags = %d", __LINE__,expr->exp_flags); + abort(); + } + optr->ex_type = ET_FLT; + optr->ex_flt = expr->exp_var[eptr->ex_int].ex_vec[idx]; + return(++eptr); + case ET_YOM1: + /* + * short hand for $y?[-1] + * if we are calculating the first sample of the vector + * we need to look at the previous results buffer + */ + optr->ex_type = ET_FLT; + if (idx == 0) + optr->ex_flt = + expr->exp_p_res[eptr->ex_int][expr->exp_vsize - 1]; + else + optr->ex_flt=expr->exp_tmpres[eptr->ex_int][idx-1]; + return(++eptr); + + case ET_YO: + case ET_XI: + /* SDY delete the following */ + if (!IS_FEXPR_TILDE(expr) || optr->ex_type==ET_VEC) { + post("%d:expr->exp_flags = %d", __LINE__,expr->exp_flags); + abort(); + } + return (eval_sigidx(expr, eptr, optr, idx)); + + case ET_TBL: + case ET_SI: + return (eval_tab(expr, eptr, optr, idx)); + case ET_FUNC: + return (eval_func(expr, eptr, optr, idx)); + case ET_VAR: + return (eval_var(expr, eptr, optr, idx)); + case ET_OP: + break; + case ET_STR: + case ET_LP: + case ET_LB: + default: + post_error((fts_object_t *) expr, + "expr: ex_eval: unexpected type %d\n", eptr->ex_type); + return (exNULL); + } + if (!eptr[1].ex_type) { + post_error((fts_object_t *) expr, + "expr: ex_eval: not enough nodes 1\n"); + return (exNULL); + } + if (!unary_op(eptr->ex_op) && !eptr[2].ex_type) { + post_error((fts_object_t *) expr, + "expr: ex_eval: not enough nodes 2\n"); + return (exNULL); + } + + switch((eptr++)->ex_op) { + case OP_STORE: + return (eval_store(expr, eptr, optr, idx)); + case OP_NOT: + EVAL_UNARY(!, +); + case OP_NEG: + EVAL_UNARY(~, (long)); + case OP_UMINUS: + EVAL_UNARY(-, +); + case OP_MUL: + EVAL(*); + case OP_ADD: + EVAL(+); + case OP_SUB: + EVAL(-); + case OP_LT: + EVAL(<); + case OP_LE: + EVAL(<=); + case OP_GT: + EVAL(>); + case OP_GE: + EVAL(>=); + case OP_EQ: + EVAL(==); + case OP_NE: + EVAL(!=); /* * following operators convert their argument to integer */ #undef DZC -#define DZC(ARG1,OPR,ARG2) (((int)ARG1) OPR ((int)ARG2)) - case OP_SL: - EVAL(<<); - case OP_SR: - EVAL(>>); - case OP_AND: - EVAL(&); - case OP_XOR: - EVAL(^); - case OP_OR: - EVAL(|); - case OP_LAND: - EVAL(&&); - case OP_LOR: - EVAL(||); +#define DZC(ARG1,OPR,ARG2) (((int)ARG1) OPR ((int)ARG2)) + case OP_SL: + EVAL(<<); + case OP_SR: + EVAL(>>); + case OP_AND: + EVAL(&); + case OP_XOR: + EVAL(^); + case OP_OR: + EVAL(|); + case OP_LAND: + EVAL(&&); + case OP_LOR: + EVAL(||); /* * for modulo we need to convert to integer and check for divide by zero */ #undef DZC -#define DZC(ARG1,OPR,ARG2) (((ARG2)?(((int)ARG1) OPR ((int)ARG2)) \ - : (ex_dzdetect(expr),0))) - case OP_MOD: - EVAL(%); +#define DZC(ARG1,OPR,ARG2) (((ARG2)?(((int)ARG1) OPR ((int)ARG2)) \ + : (ex_dzdetect(expr),0))) + case OP_MOD: + EVAL(%); /* * define the divide by zero check for divide */ #undef DZC -#define DZC(ARG1,OPR,ARG2) (((ARG2)?(ARG1 OPR ARG2):(ex_dzdetect(expr),0))) - case OP_DIV: - EVAL(/); - case OP_LP: - case OP_RP: - case OP_LB: - case OP_RB: - case OP_COMMA: - case OP_SEMI: - default: - post_error((fts_object_t *) expr, "expr: ex_print: bad op 0x%x\n", eptr->ex_op); - return (exNULL); - } - - - /* - * the left and right nodes could have been transformed to vectors - * down the chain - */ - if (left.ex_type == ET_VEC) - fts_free(left.ex_vec); - if (right.ex_type == ET_VEC) - fts_free(right.ex_vec); - if (nullret) - return (exNULL); - else - return (eptr); +#define DZC(ARG1,OPR,ARG2) (((ARG2)?(ARG1 OPR ARG2):(ex_dzdetect(expr),0))) + case OP_DIV: + EVAL(/); + case OP_LP: + case OP_RP: + case OP_LB: + case OP_RB: + case OP_COMMA: + case OP_SEMI: + default: + post_error((fts_object_t *) expr, "expr: ex_print: bad op 0x%x\n", eptr->ex_op); + return (exNULL); + } + + + /* + * the left and right nodes could have been transformed to vectors + * down the chain + */ + if (left.ex_type == ET_VEC) + fts_free(left.ex_vec); + if (right.ex_type == ET_VEC) + fts_free(right.ex_vec); + if (nullret) + return (exNULL); + else + return (eptr); } /* * eval_func -- evaluate a function, call ex_eval() on all the arguments - * so that all of them are terminal nodes. The call the - * appropriate function + * so that all of them are terminal nodes. The call the + * appropriate function */ struct ex_ex * eval_func(struct expr *expr, struct ex_ex *eptr, struct ex_ex *optr, int idx) @@ -1215,37 +1215,37 @@ eval_func(struct expr *expr, struct ex_ex *eptr, struct ex_ex *optr, int idx) /* the operation stack */ /* the result pointer */ { - int i; - struct ex_ex args[MAX_ARGS]; - t_ex_func *f; - - f = (t_ex_func *)(eptr++)->ex_ptr; - if (!f || !f->f_name) { - return (exNULL); - } - if (f->f_argc > MAX_ARGS) { - post_error((fts_object_t *) expr, "expr: eval_func: asking too many arguments\n"); - return (exNULL); - } - - for (i = 0; i < f->f_argc; i++) { - args[i].ex_type = 0; - args[i].ex_int = 0; - eptr = ex_eval(expr, eptr, &args[i], idx); - } - (*f->f_func)(expr, f->f_argc, args, optr); - for (i = 0; i < f->f_argc; i++) { - if (args[i].ex_type == ET_VEC) - fts_free(args[i].ex_vec); - } - return (eptr); + int i; + struct ex_ex args[MAX_ARGS]; + t_ex_func *f; + + f = (t_ex_func *)(eptr++)->ex_ptr; + if (!f || !f->f_name) { + return (exNULL); + } + if (f->f_argc > MAX_ARGS) { + post_error((fts_object_t *) expr, "expr: eval_func: asking too many arguments\n"); + return (exNULL); + } + + for (i = 0; i < f->f_argc; i++) { + args[i].ex_type = 0; + args[i].ex_int = 0; + eptr = ex_eval(expr, eptr, &args[i], idx); + } + (*f->f_func)(expr, f->f_argc, args, optr); + for (i = 0; i < f->f_argc; i++) { + if (args[i].ex_type == ET_VEC) + fts_free(args[i].ex_vec); + } + return (eptr); } /* * eval_store -- evaluate the '=' operator, - * make sure the first operator is a legal left operator - * and call ex_eval on the right operator + * make sure the first operator is a legal left operator + * and call ex_eval on the right operator */ struct ex_ex * eval_store(struct expr *expr, struct ex_ex *eptr, struct ex_ex *optr, int idx) @@ -1253,11 +1253,11 @@ eval_store(struct expr *expr, struct ex_ex *eptr, struct ex_ex *optr, int idx) /* the operation stack */ /* the result pointer */ { - struct ex_ex arg; - int isvalue; - char *tbl = (char *) 0; - char *var = (char *) 0; - int badleft = 0; + struct ex_ex arg; + int isvalue; + char *tbl = (char *) 0; + char *var = (char *) 0; + int badleft = 0; post("store called\n"); ex_print(eptr); @@ -1265,41 +1265,41 @@ eptr = ex_eval(expr, ++eptr, optr, idx); return (eptr); #ifdef notdef /* SDY */ - arg.ex_type = ET_INT; - arg.ex_int = 0; - if (eptr->ex_type == ET_VAR) { - var = (char *) eptr->ex_ptr; - - eptr = ex_eval(expr, ++eptr, &arg, idx); - (void)max_ex_var_store(expr, (t_symbol *)var, &arg, optr); - if (arg.ex_type == ET_VEC) - fts_free(arg.ex_vec); - } - - - if (eptr->ex_type == ET_SI) { - eptr++; - if (eptr->ex_type = - } - - /* the left operator should either be a value or a array member */ - switch (eptr->ex_type) { - case ET_SI: - if ((eptr + 1)->ex_type == OP_LB) { - } - if (!expr->exp_var[eptr->ex_int].ex_ptr) { - if (!(expr->exp_error & EE_NOTABLE)) { - post("expr: syntax error: no string for inlet %d", eptr->ex_int + 1); - post("expr: No more table errors will be reported"); - post("expr: till the next reset"); - expr->exp_error |= EE_NOTABLE; - } - badleft++; - } else - tbl = (char *) expr->exp_var[eptr->ex_int].ex_ptr; - break; - case ET_TBL: - } + arg.ex_type = ET_INT; + arg.ex_int = 0; + if (eptr->ex_type == ET_VAR) { + var = (char *) eptr->ex_ptr; + + eptr = ex_eval(expr, ++eptr, &arg, idx); + (void)max_ex_var_store(expr, (t_symbol *)var, &arg, optr); + if (arg.ex_type == ET_VEC) + fts_free(arg.ex_vec); + } + + + if (eptr->ex_type == ET_SI) { + eptr++; + if (eptr->ex_type = + } + + /* the left operator should either be a value or a array member */ + switch (eptr->ex_type) { + case ET_SI: + if ((eptr + 1)->ex_type == OP_LB) { + } + if (!expr->exp_var[eptr->ex_int].ex_ptr) { + if (!(expr->exp_error & EE_NOTABLE)) { + post("expr: syntax error: no string for inlet %d", eptr->ex_int + 1); + post("expr: No more table errors will be reported"); + post("expr: till the next reset"); + expr->exp_error |= EE_NOTABLE; + } + badleft++; + } else + tbl = (char *) expr->exp_var[eptr->ex_int].ex_ptr; + break; + case ET_TBL: + } #endif /* SDY */ } @@ -1312,43 +1312,43 @@ eval_tab(struct expr *expr, struct ex_ex *eptr, struct ex_ex *optr, int idx) /* the operation stack */ /* the result pointer */ { - struct ex_ex arg; - char *tbl = (char *) 0; - int notable = 0; - - if (eptr->ex_type == ET_SI) { - if (!expr->exp_var[eptr->ex_int].ex_ptr) { + struct ex_ex arg; + char *tbl = (char *) 0; + int notable = 0; + + if (eptr->ex_type == ET_SI) { + if (!expr->exp_var[eptr->ex_int].ex_ptr) { /* SDY post_error() does not work in MAX/MSP yet - post_error((fts_object_t *) expr, - "expr: syntax error: no string for inlet %d\n", eptr->ex_int + 1); + post_error((fts_object_t *) expr, + "expr: syntax error: no string for inlet %d\n", eptr->ex_int + 1); */ - if (!(expr->exp_error & EE_NOTABLE)) { - post("expr: syntax error: no string for inlet %d", eptr->ex_int + 1); - post("expr: No more table errors will be reported"); - post("expr: till the next reset"); - expr->exp_error |= EE_NOTABLE; - } - notable++; - } else - tbl = (char *) expr->exp_var[eptr->ex_int].ex_ptr; - } else if (eptr->ex_type == ET_TBL) - tbl = (char *) eptr->ex_ptr; - else { - post_error((fts_object_t *) expr, "expr: eval_tbl: bad type %ld\n", eptr->ex_type); - notable++; - - } - arg.ex_type = 0; - arg.ex_int = 0; - eptr = ex_eval(expr, ++eptr, &arg, idx); - - optr->ex_type = ET_INT; - optr->ex_int = 0; - if (!notable) - (void)max_ex_tab(expr, (t_symbol *)tbl, &arg, optr); - if (arg.ex_type == ET_VEC) - fts_free(arg.ex_vec); - return (eptr); + if (!(expr->exp_error & EE_NOTABLE)) { + post("expr: syntax error: no string for inlet %d", eptr->ex_int + 1); + post("expr: No more table errors will be reported"); + post("expr: till the next reset"); + expr->exp_error |= EE_NOTABLE; + } + notable++; + } else + tbl = (char *) expr->exp_var[eptr->ex_int].ex_ptr; + } else if (eptr->ex_type == ET_TBL) + tbl = (char *) eptr->ex_ptr; + else { + post_error((fts_object_t *) expr, "expr: eval_tbl: bad type %ld\n", eptr->ex_type); + notable++; + + } + arg.ex_type = 0; + arg.ex_int = 0; + eptr = ex_eval(expr, ++eptr, &arg, idx); + + optr->ex_type = ET_INT; + optr->ex_int = 0; + if (!notable) + (void)max_ex_tab(expr, (t_symbol *)tbl, &arg, optr); + if (arg.ex_type == ET_VEC) + fts_free(arg.ex_vec); + return (eptr); } /* @@ -1360,38 +1360,38 @@ eval_var(struct expr *expr, struct ex_ex *eptr, struct ex_ex *optr, int idx) /* the operation stack */ /* the result pointer */ { - struct ex_ex arg; - char *var = (char *) 0; - int novar = 0; - - if (eptr->ex_type == ET_SI) { - if (!expr->exp_var[eptr->ex_int].ex_ptr) { + struct ex_ex arg; + char *var = (char *) 0; + int novar = 0; + + if (eptr->ex_type == ET_SI) { + if (!expr->exp_var[eptr->ex_int].ex_ptr) { /* SDY post_error() does not work in MAX/MSP yet post_error((fts_object_t *) expr, "expr: syntax error: no string for inlet %d\n", eptr->ex_int + 1); */ - if (!(expr->exp_error & EE_NOVAR)) { - post("expr: syntax error: no string for inlet %d", eptr->ex_int + 1); - post("expr: No more table errors will be reported"); - post("expr: till the next reset"); - expr->exp_error |= EE_NOVAR; - } - novar++; - } else - var = (char *) expr->exp_var[eptr->ex_int].ex_ptr; - } else if (eptr->ex_type == ET_VAR) - var = (char *) eptr->ex_ptr; - else { - post_error((fts_object_t *) expr, "expr: eval_tbl: bad type %ld\n", eptr->ex_type); - novar++; - - } - - optr->ex_type = ET_INT; - optr->ex_int = 0; - if (!novar) - (void)max_ex_var(expr, (t_symbol *)var, optr); - return (++eptr); + if (!(expr->exp_error & EE_NOVAR)) { + post("expr: syntax error: no string for inlet %d", eptr->ex_int + 1); + post("expr: No more table errors will be reported"); + post("expr: till the next reset"); + expr->exp_error |= EE_NOVAR; + } + novar++; + } else + var = (char *) expr->exp_var[eptr->ex_int].ex_ptr; + } else if (eptr->ex_type == ET_VAR) + var = (char *) eptr->ex_ptr; + else { + post_error((fts_object_t *) expr, "expr: eval_tbl: bad type %ld\n", eptr->ex_type); + novar++; + + } + + optr->ex_type = ET_INT; + optr->ex_int = 0; + if (!novar) + (void)max_ex_var(expr, (t_symbol *)var, optr); + return (++eptr); } /* @@ -1404,148 +1404,148 @@ eval_sigidx(struct expr *expr, struct ex_ex *eptr, struct ex_ex *optr, int idx) /* the result pointer */ /* the index */ { - struct ex_ex arg; - struct ex_ex *reteptr; - int i = 0, j = 0; - float fi = 0, /* index in float */ - rem_i = 0; /* remains of the float */ - char *tbl; - - arg.ex_type = 0; - arg.ex_int = 0; - reteptr = ex_eval(expr, eptr + 1, &arg, idx); - if (arg.ex_type == ET_FLT) { - fi = arg.ex_flt; /* float index */ - i = (int) arg.ex_flt; /* integer index */ - rem_i = arg.ex_flt - i; /* remains of integer */ - } else if (arg.ex_type == ET_INT) { - fi = arg.ex_int; /* float index */ - i = arg.ex_int; - rem_i = 0; - } else { - post("eval_sigidx: bad res type (%d)", arg.ex_type); - } - optr->ex_type = ET_FLT; - /* - * indexing an input vector - */ - if (eptr->ex_type == ET_XI) { - if (fi > 0) { - if (!(expr->exp_error & EE_BI_INPUT)) { - expr->exp_error |= EE_BI_INPUT; - post("expr: input vector index > 0, (vector x%d[%f])", - eptr->ex_int + 1, i + rem_i); - post("fexpr~: index assumed to be = 0"); - post("fexpr~: no error report till next reset"); - ex_print(eptr); - } - /* just replace it with zero */ - i = 0; - rem_i = 0; - } - if (cal_sigidx(optr, i, rem_i, idx, expr->exp_vsize, - expr->exp_var[eptr->ex_int].ex_vec, - expr->exp_p_var[eptr->ex_int])) { - if (!(expr->exp_error & EE_BI_INPUT)) { - expr->exp_error |= EE_BI_INPUT; - post("expr: input vector index < -VectorSize, (vector x%d[%f])", eptr->ex_int + 1, fi); - ex_print(eptr); - post("fexpr~: index assumed to be = -%d", - expr->exp_vsize); - post("fexpr~: no error report till next reset"); - } - } - - /* - * indexing an output vector - */ - } else if (eptr->ex_type == ET_YO) { - /* for output vectors index of zero is not legal */ - if (fi >= 0) { - if (!(expr->exp_error & EE_BI_OUTPUT)) { - expr->exp_error |= EE_BI_OUTPUT; - post("fexpr~: bad output index, (%f)", fi); - ex_print(eptr); - post("fexpr~: no error report till next reset"); - post("fexpr~: index assumed to be = -1"); - } - i = -1; - } - if (eptr->ex_int >= expr->exp_nexpr) { - post("fexpr~: $y%d illegal: not that many exprs", - eptr->ex_int); - optr->ex_flt = 0; - return (reteptr); - } - if (cal_sigidx(optr, i, rem_i, idx, expr->exp_vsize, - expr->exp_tmpres[eptr->ex_int], - expr->exp_p_res[eptr->ex_int])) { - if (!(expr->exp_error & EE_BI_OUTPUT)) { - expr->exp_error |= EE_BI_OUTPUT; - post("fexpr~: bad output index, (%f)", fi); - ex_print(eptr); - post("fexpr~: index assumed to be = -%d", - expr->exp_vsize); - } - } - } else { - optr->ex_flt = 0; - post("fexpr~:eval_sigidx: internal error - unknown vector (%d)", - eptr->ex_type); - } - return (reteptr); + struct ex_ex arg; + struct ex_ex *reteptr; + int i = 0, j = 0; + float fi = 0, /* index in float */ + rem_i = 0; /* remains of the float */ + char *tbl; + + arg.ex_type = 0; + arg.ex_int = 0; + reteptr = ex_eval(expr, eptr + 1, &arg, idx); + if (arg.ex_type == ET_FLT) { + fi = arg.ex_flt; /* float index */ + i = (int) arg.ex_flt; /* integer index */ + rem_i = arg.ex_flt - i; /* remains of integer */ + } else if (arg.ex_type == ET_INT) { + fi = arg.ex_int; /* float index */ + i = arg.ex_int; + rem_i = 0; + } else { + post("eval_sigidx: bad res type (%d)", arg.ex_type); + } + optr->ex_type = ET_FLT; + /* + * indexing an input vector + */ + if (eptr->ex_type == ET_XI) { + if (fi > 0) { + if (!(expr->exp_error & EE_BI_INPUT)) { + expr->exp_error |= EE_BI_INPUT; + post("expr: input vector index > 0, (vector x%d[%f])", + eptr->ex_int + 1, i + rem_i); + post("fexpr~: index assumed to be = 0"); + post("fexpr~: no error report till next reset"); + ex_print(eptr); + } + /* just replace it with zero */ + i = 0; + rem_i = 0; + } + if (cal_sigidx(optr, i, rem_i, idx, expr->exp_vsize, + expr->exp_var[eptr->ex_int].ex_vec, + expr->exp_p_var[eptr->ex_int])) { + if (!(expr->exp_error & EE_BI_INPUT)) { + expr->exp_error |= EE_BI_INPUT; + post("expr: input vector index < -VectorSize, (vector x%d[%f])", eptr->ex_int + 1, fi); + ex_print(eptr); + post("fexpr~: index assumed to be = -%d", + expr->exp_vsize); + post("fexpr~: no error report till next reset"); + } + } + + /* + * indexing an output vector + */ + } else if (eptr->ex_type == ET_YO) { + /* for output vectors index of zero is not legal */ + if (fi >= 0) { + if (!(expr->exp_error & EE_BI_OUTPUT)) { + expr->exp_error |= EE_BI_OUTPUT; + post("fexpr~: bad output index, (%f)", fi); + ex_print(eptr); + post("fexpr~: no error report till next reset"); + post("fexpr~: index assumed to be = -1"); + } + i = -1; + } + if (eptr->ex_int >= expr->exp_nexpr) { + post("fexpr~: $y%d illegal: not that many exprs", + eptr->ex_int); + optr->ex_flt = 0; + return (reteptr); + } + if (cal_sigidx(optr, i, rem_i, idx, expr->exp_vsize, + expr->exp_tmpres[eptr->ex_int], + expr->exp_p_res[eptr->ex_int])) { + if (!(expr->exp_error & EE_BI_OUTPUT)) { + expr->exp_error |= EE_BI_OUTPUT; + post("fexpr~: bad output index, (%f)", fi); + ex_print(eptr); + post("fexpr~: index assumed to be = -%d", + expr->exp_vsize); + } + } + } else { + optr->ex_flt = 0; + post("fexpr~:eval_sigidx: internal error - unknown vector (%d)", + eptr->ex_type); + } + return (reteptr); } /* * cal_sigidx -- given two tables (one current one previous) calculate an * evaluation of a float index into the vectors by linear - * interpolation - * return 0 on success, 1 on failure (index out of bound) + * interpolation + * return 0 on success, 1 on failure (index out of bound) */ static int -cal_sigidx(struct ex_ex *optr, /* The output value */ - int i, float rem_i, /* integer and fractinal part of index */ - int idx, /* index of current fexpr~ processing */ - int vsize, /* vector size */ - float *curvec, float *prevec) /* current and previous table */ +cal_sigidx(struct ex_ex *optr, /* The output value */ + int i, float rem_i, /* integer and fractinal part of index */ + int idx, /* index of current fexpr~ processing */ + int vsize, /* vector size */ + float *curvec, float *prevec) /* current and previous table */ { - int n; - - n = i + idx; - if (n > 0) { - /* from the curvec */ - if (rem_i) - optr->ex_flt = curvec[n] + - rem_i * (curvec[n] - curvec[n - 1]); - else - optr->ex_flt = curvec[n]; - return (0); - } - if (n == 0) { - /* - * this is the case that the remaining float - * is between two tables - */ - if (rem_i) - optr->ex_flt = *curvec + - rem_i * (*curvec - prevec[vsize - 1]); - else - optr->ex_flt = *curvec; - return (0); - } - /* find the index in the saved buffer */ - n = vsize + n; - if (n > 0) { - if (rem_i) - optr->ex_flt = prevec[n] + - rem_i * (prevec[n] - prevec[n - 1]); - else - optr->ex_flt = prevec[n]; - return (0); - } - /* out of bound */ - optr->ex_flt = *prevec; - return (1); + int n; + + n = i + idx; + if (n > 0) { + /* from the curvec */ + if (rem_i) + optr->ex_flt = curvec[n] + + rem_i * (curvec[n] - curvec[n - 1]); + else + optr->ex_flt = curvec[n]; + return (0); + } + if (n == 0) { + /* + * this is the case that the remaining float + * is between two tables + */ + if (rem_i) + optr->ex_flt = *curvec + + rem_i * (*curvec - prevec[vsize - 1]); + else + optr->ex_flt = *curvec; + return (0); + } + /* find the index in the saved buffer */ + n = vsize + n; + if (n > 0) { + if (rem_i) + optr->ex_flt = prevec[n] + + rem_i * (prevec[n] - prevec[n - 1]); + else + optr->ex_flt = prevec[n]; + return (0); + } + /* out of bound */ + optr->ex_flt = *prevec; + return (1); } /* @@ -1554,314 +1554,314 @@ cal_sigidx(struct ex_ex *optr, /* The output value */ int getoken(struct expr *expr, struct ex_ex *eptr) { - char *p; - long i; + char *p; + long i; - if (!expr->exp_str) { - post("expr: getoken: expression string not set\n"); - return (0); - } + if (!expr->exp_str) { + post("expr: getoken: expression string not set\n"); + return (0); + } retry: - if (!*expr->exp_str) { - eptr->ex_type = 0; - eptr->ex_int = 0; - return (0); - } - if (*expr->exp_str == ';') { - expr->exp_str++; - eptr->ex_type = 0; - eptr->ex_int = 0; - return (0); - } - eptr->ex_type = ET_OP; - switch (*expr->exp_str++) { - case '\\': - case ' ': - case '\t': - goto retry; - case ';': - post("expr: syntax error: ';' not implemented\n"); - return (1); - case ',': - eptr->ex_op = OP_COMMA; - break; - case '(': - eptr->ex_op = OP_LP; - break; - case ')': - eptr->ex_op = OP_RP; - break; - case ']': - eptr->ex_op = OP_RB; - break; - case '~': - eptr->ex_op = OP_NEG; - break; - /* we will take care of unary minus later */ - case '*': - eptr->ex_op = OP_MUL; - break; - case '/': - eptr->ex_op = OP_DIV; - break; - case '%': - eptr->ex_op = OP_MOD; - break; - case '+': - eptr->ex_op = OP_ADD; - break; - case '-': - eptr->ex_op = OP_SUB; - break; - case '^': - eptr->ex_op = OP_XOR; - break; - case '[': - eptr->ex_op = OP_LB; - break; - case '!': - if (*expr->exp_str == '=') { - eptr->ex_op = OP_NE; - expr->exp_str++; - } else - eptr->ex_op = OP_NOT; - break; - case '<': - switch (*expr->exp_str) { - case '<': - eptr->ex_op = OP_SL; - expr->exp_str++; - break; - case '=': - eptr->ex_op = OP_LE; - expr->exp_str++; - break; - default: - eptr->ex_op = OP_LT; - break; - } - break; - case '>': - switch (*expr->exp_str) { - case '>': - eptr->ex_op = OP_SR; - expr->exp_str++; - break; - case '=': - eptr->ex_op = OP_GE; - expr->exp_str++; - break; - default: - eptr->ex_op = OP_GT; - break; - } - break; - case '=': - if (*expr->exp_str++ != '=') { - post("expr: syntax error: =\n"); - return (1); - } - eptr->ex_op = OP_EQ; - break; + if (!*expr->exp_str) { + eptr->ex_type = 0; + eptr->ex_int = 0; + return (0); + } + if (*expr->exp_str == ';') { + expr->exp_str++; + eptr->ex_type = 0; + eptr->ex_int = 0; + return (0); + } + eptr->ex_type = ET_OP; + switch (*expr->exp_str++) { + case '\\': + case ' ': + case '\t': + goto retry; + case ';': + post("expr: syntax error: ';' not implemented\n"); + return (1); + case ',': + eptr->ex_op = OP_COMMA; + break; + case '(': + eptr->ex_op = OP_LP; + break; + case ')': + eptr->ex_op = OP_RP; + break; + case ']': + eptr->ex_op = OP_RB; + break; + case '~': + eptr->ex_op = OP_NEG; + break; + /* we will take care of unary minus later */ + case '*': + eptr->ex_op = OP_MUL; + break; + case '/': + eptr->ex_op = OP_DIV; + break; + case '%': + eptr->ex_op = OP_MOD; + break; + case '+': + eptr->ex_op = OP_ADD; + break; + case '-': + eptr->ex_op = OP_SUB; + break; + case '^': + eptr->ex_op = OP_XOR; + break; + case '[': + eptr->ex_op = OP_LB; + break; + case '!': + if (*expr->exp_str == '=') { + eptr->ex_op = OP_NE; + expr->exp_str++; + } else + eptr->ex_op = OP_NOT; + break; + case '<': + switch (*expr->exp_str) { + case '<': + eptr->ex_op = OP_SL; + expr->exp_str++; + break; + case '=': + eptr->ex_op = OP_LE; + expr->exp_str++; + break; + default: + eptr->ex_op = OP_LT; + break; + } + break; + case '>': + switch (*expr->exp_str) { + case '>': + eptr->ex_op = OP_SR; + expr->exp_str++; + break; + case '=': + eptr->ex_op = OP_GE; + expr->exp_str++; + break; + default: + eptr->ex_op = OP_GT; + break; + } + break; + case '=': + if (*expr->exp_str++ != '=') { + post("expr: syntax error: =\n"); + return (1); + } + eptr->ex_op = OP_EQ; + break; /* do not allow the store till the function is fixed - if (*expr->exp_str != '=') - eptr->ex_op = OP_STORE; - else { - expr->exp_str++; - eptr->ex_op = OP_EQ; - } - break; + if (*expr->exp_str != '=') + eptr->ex_op = OP_STORE; + else { + expr->exp_str++; + eptr->ex_op = OP_EQ; + } + break; */ - case '&': - if (*expr->exp_str == '&') { - expr->exp_str++; - eptr->ex_op = OP_LAND; - } else - eptr->ex_op = OP_AND; - break; - - case '|': - if ((*expr->exp_str == '|')) { - expr->exp_str++; - eptr->ex_op = OP_LOR; - } else - eptr->ex_op = OP_OR; - break; - case '$': - switch (*expr->exp_str++) { - case 'I': - case 'i': - eptr->ex_type = ET_II; - break; - case 'F': - case 'f': - eptr->ex_type = ET_FI; - break; - case 'S': - case 's': - eptr->ex_type = ET_SI; - break; - case 'V': - case 'v': - if (IS_EXPR_TILDE(expr)) { - eptr->ex_type = ET_VI; - break; - } - post("$v? works only for expr~"); - post("expr: syntax error: %s\n", &expr->exp_str[-2]); - return (1); - case 'X': - case 'x': - if (IS_FEXPR_TILDE(expr)) { - eptr->ex_type = ET_XI; - if (isdigit(*expr->exp_str)) - break; - /* for $x[] is a shorhand for $x1[] */ - eptr->ex_int = 0; - goto noinletnum; - } - post("$x? works only for fexpr~"); - post("expr: syntax error: %s\n", &expr->exp_str[-2]); - return (1); - case 'y': - case 'Y': - if (IS_FEXPR_TILDE(expr)) { - eptr->ex_type = ET_YO; - /*$y takes no number */ - if (isdigit(*expr->exp_str)) - break; - /* for $y[] is a shorhand for $y1[] */ - eptr->ex_int = 0; - goto noinletnum; - } - post("$y works only for fexpr~"); - default: - post("expr: syntax error: %s\n", &expr->exp_str[-2]); - return (1); - } - p = atoif(expr->exp_str, &eptr->ex_op, &i); - if (!p) { - post("expr: syntax error: %s\n", &expr->exp_str[-2]); - return (1); - } - if (i != ET_INT) { - post("expr: syntax error: %s\n", expr->exp_str); - return (1); - } - /* - * make the user inlets one based rather than zero based - * therefore we decrement the number that user has supplied - */ - if (!eptr->ex_op || (eptr->ex_op)-- > MAX_VARS) { - post("expr: syntax error: inlet or outlet out of range: %s\n", - expr->exp_str); - return (1); - } - - /* - * until we can change the input type of inlets on - * the fly (at pd_new() - * time) the first input to expr~ is always a vectore - * and $f1 or $i1 is - * illegal for fexr~ - */ - if (eptr->ex_op == 0 && - (IS_FEXPR_TILDE(expr) || IS_EXPR_TILDE(expr)) && - (eptr->ex_type==ET_II || eptr->ex_type==ET_FI || - eptr->ex_type==ET_SI)) { - post("first inlet of expr~/fexpr~ can only be a vector"); - return (1); - } - /* record the inlet or outlet type and check for consistency */ - if (eptr->ex_type == ET_YO ) { - /* it is an outlet for fexpr~*/ - /* no need to do anything */ - ; - } else if (!expr->exp_var[eptr->ex_op].ex_type) - expr->exp_var[eptr->ex_op].ex_type = eptr->ex_type; - else if (expr->exp_var[eptr->ex_op].ex_type != eptr->ex_type) { - post("expr: syntax error: inlets can only have one type: %s\n", expr->exp_str); - return (1); - } - expr->exp_str = p; + case '&': + if (*expr->exp_str == '&') { + expr->exp_str++; + eptr->ex_op = OP_LAND; + } else + eptr->ex_op = OP_AND; + break; + + case '|': + if ((*expr->exp_str == '|')) { + expr->exp_str++; + eptr->ex_op = OP_LOR; + } else + eptr->ex_op = OP_OR; + break; + case '$': + switch (*expr->exp_str++) { + case 'I': + case 'i': + eptr->ex_type = ET_II; + break; + case 'F': + case 'f': + eptr->ex_type = ET_FI; + break; + case 'S': + case 's': + eptr->ex_type = ET_SI; + break; + case 'V': + case 'v': + if (IS_EXPR_TILDE(expr)) { + eptr->ex_type = ET_VI; + break; + } + post("$v? works only for expr~"); + post("expr: syntax error: %s\n", &expr->exp_str[-2]); + return (1); + case 'X': + case 'x': + if (IS_FEXPR_TILDE(expr)) { + eptr->ex_type = ET_XI; + if (isdigit(*expr->exp_str)) + break; + /* for $x[] is a shorhand for $x1[] */ + eptr->ex_int = 0; + goto noinletnum; + } + post("$x? works only for fexpr~"); + post("expr: syntax error: %s\n", &expr->exp_str[-2]); + return (1); + case 'y': + case 'Y': + if (IS_FEXPR_TILDE(expr)) { + eptr->ex_type = ET_YO; + /*$y takes no number */ + if (isdigit(*expr->exp_str)) + break; + /* for $y[] is a shorhand for $y1[] */ + eptr->ex_int = 0; + goto noinletnum; + } + post("$y works only for fexpr~"); + default: + post("expr: syntax error: %s\n", &expr->exp_str[-2]); + return (1); + } + p = atoif(expr->exp_str, &eptr->ex_op, &i); + if (!p) { + post("expr: syntax error: %s\n", &expr->exp_str[-2]); + return (1); + } + if (i != ET_INT) { + post("expr: syntax error: %s\n", expr->exp_str); + return (1); + } + /* + * make the user inlets one based rather than zero based + * therefore we decrement the number that user has supplied + */ + if (!eptr->ex_op || (eptr->ex_op)-- > MAX_VARS) { + post("expr: syntax error: inlet or outlet out of range: %s\n", + expr->exp_str); + return (1); + } + + /* + * until we can change the input type of inlets on + * the fly (at pd_new() + * time) the first input to expr~ is always a vectore + * and $f1 or $i1 is + * illegal for fexr~ + */ + if (eptr->ex_op == 0 && + (IS_FEXPR_TILDE(expr) || IS_EXPR_TILDE(expr)) && + (eptr->ex_type==ET_II || eptr->ex_type==ET_FI || + eptr->ex_type==ET_SI)) { + post("first inlet of expr~/fexpr~ can only be a vector"); + return (1); + } + /* record the inlet or outlet type and check for consistency */ + if (eptr->ex_type == ET_YO ) { + /* it is an outlet for fexpr~*/ + /* no need to do anything */ + ; + } else if (!expr->exp_var[eptr->ex_op].ex_type) + expr->exp_var[eptr->ex_op].ex_type = eptr->ex_type; + else if (expr->exp_var[eptr->ex_op].ex_type != eptr->ex_type) { + post("expr: syntax error: inlets can only have one type: %s\n", expr->exp_str); + return (1); + } + expr->exp_str = p; noinletnum: - break; - case '"': - { - struct ex_ex ex; - - p = expr->exp_str; - if (!*expr->exp_str || *expr->exp_str == '"') { - post("expr: syntax error: empty symbol: %s\n", --expr->exp_str); - return (1); - } - if (getoken(expr, &ex)) - return (1); - switch (ex.ex_type) { - case ET_STR: - if (ex_getsym(ex.ex_ptr, (t_symbol **)&(eptr->ex_ptr))) { - post("expr: syntax error: getoken: problms with ex_getsym\n"); - return (1); - } - eptr->ex_type = ET_SYM; - break; - case ET_SI: - *eptr = ex; - eptr->ex_type = ET_VSYM; - break; - default: - post("expr: syntax error: bad symbol name: %s\n", p); - return (1); - } - if (*expr->exp_str++ != '"') { - post("expr: syntax error: missing '\"'\n"); - return (1); - } - break; - } - case '.': - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - p = atoif(--expr->exp_str, &eptr->ex_int, &eptr->ex_type); - if (!p) - return (1); - expr->exp_str = p; - break; - - default: - /* - * has to be a string, it should either be a - * function or a table - */ - p = --expr->exp_str; - for (i = 0; name_ok(*p); i++) - p++; - if (!i) { - post("expr: syntax error: %s\n", expr->exp_str); - return (1); - } - eptr->ex_ptr = (char *)fts_malloc(i + 1); - strncpy(eptr->ex_ptr, expr->exp_str, (int) i); - (eptr->ex_ptr)[i] = 0; - expr->exp_str = p; - /* - * we mark this as a string and later we will change this - * to either a function or a table - */ - eptr->ex_type = ET_STR; - break; - } - return (0); + break; + case '"': + { + struct ex_ex ex; + + p = expr->exp_str; + if (!*expr->exp_str || *expr->exp_str == '"') { + post("expr: syntax error: empty symbol: %s\n", --expr->exp_str); + return (1); + } + if (getoken(expr, &ex)) + return (1); + switch (ex.ex_type) { + case ET_STR: + if (ex_getsym(ex.ex_ptr, (t_symbol **)&(eptr->ex_ptr))) { + post("expr: syntax error: getoken: problms with ex_getsym\n"); + return (1); + } + eptr->ex_type = ET_SYM; + break; + case ET_SI: + *eptr = ex; + eptr->ex_type = ET_VSYM; + break; + default: + post("expr: syntax error: bad symbol name: %s\n", p); + return (1); + } + if (*expr->exp_str++ != '"') { + post("expr: syntax error: missing '\"'\n"); + return (1); + } + break; + } + case '.': + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + p = atoif(--expr->exp_str, &eptr->ex_int, &eptr->ex_type); + if (!p) + return (1); + expr->exp_str = p; + break; + + default: + /* + * has to be a string, it should either be a + * function or a table + */ + p = --expr->exp_str; + for (i = 0; name_ok(*p); i++) + p++; + if (!i) { + post("expr: syntax error: %s\n", expr->exp_str); + return (1); + } + eptr->ex_ptr = (char *)fts_malloc(i + 1); + strncpy(eptr->ex_ptr, expr->exp_str, (int) i); + (eptr->ex_ptr)[i] = 0; + expr->exp_str = p; + /* + * we mark this as a string and later we will change this + * to either a function or a table + */ + eptr->ex_type = ET_STR; + break; + } + return (0); } /* @@ -1870,100 +1870,100 @@ noinletnum: char * atoif(char *s, long int *value, long int *type) { - char *p; - long int_val = 0; - int flt = 0; - float pos = 0; - float flt_val = 0; - int base = 10; - - p = s; - if (*p == '0' && (p[1] == 'x' || p[1] == 'X')) { - base = 16; - p += 2; - } - while (8) { - switch (*p) { - case '.': - if (flt || base != 10) { - post("expr: syntax error: %s\n", s); - return ((char *) 0); - } - flt++; - pos = 10; - flt_val = int_val; - break; - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - if (flt) { - flt_val += (*p - '0') / pos; - pos *= 10; - } else { - int_val *= base; - int_val += (*p - '0'); - } - break; - case 'a': - case 'b': - case 'c': - case 'd': - case 'e': - case 'f': - if (base != 16 || flt) { - post("expr: syntax error: %s\n", s); - return ((char *) 0); - } - int_val *= base; - int_val += (*p - 'a' + 10); - break; - case 'A': - case 'B': - case 'C': - case 'D': - case 'E': - case 'F': - if (base != 16 || flt) { - post("expr: syntax error: %s\n", s); - return ((char *) 0); - } - int_val *= base; - int_val += (*p - 'A' + 10); - break; - default: - if (flt) { - *type = ET_FLT; - *((float *) value) = flt_val; - } else { - *type = ET_INT; - *value = int_val; - } - return (p); - } - p++; - } + char *p; + long int_val = 0; + int flt = 0; + float pos = 0; + float flt_val = 0; + int base = 10; + + p = s; + if (*p == '0' && (p[1] == 'x' || p[1] == 'X')) { + base = 16; + p += 2; + } + while (8) { + switch (*p) { + case '.': + if (flt || base != 10) { + post("expr: syntax error: %s\n", s); + return ((char *) 0); + } + flt++; + pos = 10; + flt_val = int_val; + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + if (flt) { + flt_val += (*p - '0') / pos; + pos *= 10; + } else { + int_val *= base; + int_val += (*p - '0'); + } + break; + case 'a': + case 'b': + case 'c': + case 'd': + case 'e': + case 'f': + if (base != 16 || flt) { + post("expr: syntax error: %s\n", s); + return ((char *) 0); + } + int_val *= base; + int_val += (*p - 'a' + 10); + break; + case 'A': + case 'B': + case 'C': + case 'D': + case 'E': + case 'F': + if (base != 16 || flt) { + post("expr: syntax error: %s\n", s); + return ((char *) 0); + } + int_val *= base; + int_val += (*p - 'A' + 10); + break; + default: + if (flt) { + *type = ET_FLT; + *((float *) value) = flt_val; + } else { + *type = ET_INT; + *value = int_val; + } + return (p); + } + p++; + } } /* * find_func -- returns a pointer to the found function structure - * otherwise it returns 0 + * otherwise it returns 0 */ t_ex_func * find_func(char *s) { - t_ex_func *f; + t_ex_func *f; - for (f = ex_funcs; f->f_name; f++) - if (!strcmp(f->f_name, s)) - return (f); - return ((t_ex_func *) 0); + for (f = ex_funcs; f->f_name; f++) + if (!strcmp(f->f_name, s)) + return (f); + return ((t_ex_func *) 0); } @@ -1975,166 +1975,166 @@ void ex_print(struct ex_ex *eptr) { - while (eptr->ex_type) { - switch (eptr->ex_type) { - case ET_INT: - post("%ld ", eptr->ex_int); - break; - case ET_FLT: - post("%f ", eptr->ex_flt); - break; - case ET_STR: - post("%s ", eptr->ex_ptr); - break; - case ET_TBL: - case ET_VAR: - post("%s ", ex_symname((fts_symbol_t )eptr->ex_ptr)); - break; - case ET_SYM: - post("\"%s\" ", ex_symname((fts_symbol_t )eptr->ex_ptr)); - break; - case ET_VSYM: - post("\"$s%ld\" ", eptr->ex_int + 1); - break; - case ET_FUNC: - post("%s ", - ((t_ex_func *)eptr->ex_ptr)->f_name); - break; - case ET_LP: - post("%c", '('); - break; - /* CHANGE - case ET_RP: - post("%c ", ')'); - break; - */ - case ET_LB: - post("%c", '['); - break; - /* CHANGE - case ET_RB: - post("%c ", ']'); - break; - */ - case ET_II: - post("$i%ld ", eptr->ex_int + 1); - break; - case ET_FI: - post("$f%ld ", eptr->ex_int + 1); - break; - case ET_SI: - post("$s%lx ", eptr->ex_ptr); - break; - case ET_VI: - post("$v%lx ", eptr->ex_vec); - break; - case ET_VEC: - post("vec = %ld ", eptr->ex_vec); - break; - case ET_YOM1: - case ET_YO: - post("$y%d", eptr->ex_int + 1); - break; - case ET_XI: - case ET_XI0: - post("$x%d", eptr->ex_int + 1); - break; - case ET_OP: - switch (eptr->ex_op) { - case OP_LP: - post("%c", '('); - break; - case OP_RP: - post("%c ", ')'); - break; - case OP_LB: - post("%c", '['); - break; - case OP_RB: - post("%c ", ']'); - break; - case OP_NOT: - post("%c", '!'); - break; - case OP_NEG: - post("%c", '~'); - break; - case OP_UMINUS: - post("%c", '-'); - break; - case OP_MUL: - post("%c", '*'); - break; - case OP_DIV: - post("%c", '/'); - break; - case OP_MOD: - post("%c", '%'); - break; - case OP_ADD: - post("%c", '+'); - break; - case OP_SUB: - post("%c", '-'); - break; - case OP_SL: - post("%s", "<<"); - break; - case OP_SR: - post("%s", ">>"); - break; - case OP_LT: - post("%c", '<'); - break; - case OP_LE: - post("%s", "<="); - break; - case OP_GT: - post("%c", '>'); - break; - case OP_GE: - post("%s", ">="); - break; - case OP_EQ: - post("%s", "=="); - break; - case OP_STORE: - post("%s", "="); - break; - case OP_NE: - post("%s", "!="); - break; - case OP_AND: - post("%c", '&'); - break; - case OP_XOR: - post("%c", '^'); - break; - case OP_OR: - post("%c", '|'); - break; - case OP_LAND: - post("%s", "&&"); - break; - case OP_LOR: - post("%s", "||"); - break; - case OP_COMMA: - post("%c", ','); - break; - case OP_SEMI: - post("%c", ';'); - break; - default: - post("expr: ex_print: bad op 0x%lx\n", eptr->ex_op); - } - break; - default: - post("expr: ex_print: bad type 0x%lx\n", eptr->ex_type); - } - eptr++; - } - post("\n"); + while (eptr->ex_type) { + switch (eptr->ex_type) { + case ET_INT: + post("%ld ", eptr->ex_int); + break; + case ET_FLT: + post("%f ", eptr->ex_flt); + break; + case ET_STR: + post("%s ", eptr->ex_ptr); + break; + case ET_TBL: + case ET_VAR: + post("%s ", ex_symname((fts_symbol_t )eptr->ex_ptr)); + break; + case ET_SYM: + post("\"%s\" ", ex_symname((fts_symbol_t )eptr->ex_ptr)); + break; + case ET_VSYM: + post("\"$s%ld\" ", eptr->ex_int + 1); + break; + case ET_FUNC: + post("%s ", + ((t_ex_func *)eptr->ex_ptr)->f_name); + break; + case ET_LP: + post("%c", '('); + break; + /* CHANGE + case ET_RP: + post("%c ", ')'); + break; + */ + case ET_LB: + post("%c", '['); + break; + /* CHANGE + case ET_RB: + post("%c ", ']'); + break; + */ + case ET_II: + post("$i%ld ", eptr->ex_int + 1); + break; + case ET_FI: + post("$f%ld ", eptr->ex_int + 1); + break; + case ET_SI: + post("$s%lx ", eptr->ex_ptr); + break; + case ET_VI: + post("$v%lx ", eptr->ex_vec); + break; + case ET_VEC: + post("vec = %ld ", eptr->ex_vec); + break; + case ET_YOM1: + case ET_YO: + post("$y%d", eptr->ex_int + 1); + break; + case ET_XI: + case ET_XI0: + post("$x%d", eptr->ex_int + 1); + break; + case ET_OP: + switch (eptr->ex_op) { + case OP_LP: + post("%c", '('); + break; + case OP_RP: + post("%c ", ')'); + break; + case OP_LB: + post("%c", '['); + break; + case OP_RB: + post("%c ", ']'); + break; + case OP_NOT: + post("%c", '!'); + break; + case OP_NEG: + post("%c", '~'); + break; + case OP_UMINUS: + post("%c", '-'); + break; + case OP_MUL: + post("%c", '*'); + break; + case OP_DIV: + post("%c", '/'); + break; + case OP_MOD: + post("%c", '%'); + break; + case OP_ADD: + post("%c", '+'); + break; + case OP_SUB: + post("%c", '-'); + break; + case OP_SL: + post("%s", "<<"); + break; + case OP_SR: + post("%s", ">>"); + break; + case OP_LT: + post("%c", '<'); + break; + case OP_LE: + post("%s", "<="); + break; + case OP_GT: + post("%c", '>'); + break; + case OP_GE: + post("%s", ">="); + break; + case OP_EQ: + post("%s", "=="); + break; + case OP_STORE: + post("%s", "="); + break; + case OP_NE: + post("%s", "!="); + break; + case OP_AND: + post("%c", '&'); + break; + case OP_XOR: + post("%c", '^'); + break; + case OP_OR: + post("%c", '|'); + break; + case OP_LAND: + post("%s", "&&"); + break; + case OP_LOR: + post("%s", "||"); + break; + case OP_COMMA: + post("%c", ','); + break; + case OP_SEMI: + post("%c", ';'); + break; + default: + post("expr: ex_print: bad op 0x%lx\n", eptr->ex_op); + } + break; + default: + post("expr: ex_print: bad type 0x%lx\n", eptr->ex_type); + } + eptr++; + } + post("\n"); } #ifdef NT |