diff options
Diffstat (limited to 'src/bltinmodule.c')
| -rw-r--r-- | src/bltinmodule.c | 780 |
1 files changed, 390 insertions, 390 deletions
diff --git a/src/bltinmodule.c b/src/bltinmodule.c index 151ba86..1d7d838 100644 --- a/src/bltinmodule.c +++ b/src/bltinmodule.c @@ -2,12 +2,12 @@ Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The Netherlands. - All Rights Reserved + All Rights Reserved -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that -both that copyright notice and this permission notice appear in +both that copyright notice and this permission notice appear in supporting documentation, and that the names of Stichting Mathematisch Centrum or CWI not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. @@ -39,479 +39,479 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. static object * builtin_abs(self, v) - object *self; - object *v; + object *self; + object *v; { - /* XXX This should be a method in the as_number struct in the type */ - if (v == NULL) { - /* */ - } - else if (is_intobject(v)) { - long x = getintvalue(v); - if (x < 0) - x = -x; - return newintobject(x); - } - else if (is_floatobject(v)) { - double x = getfloatvalue(v); - if (x < 0) - x = -x; - return newfloatobject(x); - } - err_setstr(TypeError, "abs() argument must be float or int"); - return NULL; + /* XXX This should be a method in the as_number struct in the type */ + if (v == NULL) { + /* */ + } + else if (is_intobject(v)) { + long x = getintvalue(v); + if (x < 0) + x = -x; + return newintobject(x); + } + else if (is_floatobject(v)) { + double x = getfloatvalue(v); + if (x < 0) + x = -x; + return newfloatobject(x); + } + err_setstr(TypeError, "abs() argument must be float or int"); + return NULL; } static object * builtin_chr(self, v) - object *self; - object *v; + object *self; + object *v; { - long x; - char s[1]; - if (v == NULL || !is_intobject(v)) { - err_setstr(TypeError, "chr() must have int argument"); - return NULL; - } - x = getintvalue(v); - if (x < 0 || x >= 256) { - err_setstr(RuntimeError, "chr() arg not in range(256)"); - return NULL; - } - s[0] = x; - return newsizedstringobject(s, 1); + long x; + char s[1]; + if (v == NULL || !is_intobject(v)) { + err_setstr(TypeError, "chr() must have int argument"); + return NULL; + } + x = getintvalue(v); + if (x < 0 || x >= 256) { + err_setstr(RuntimeError, "chr() arg not in range(256)"); + return NULL; + } + s[0] = x; + return newsizedstringobject(s, 1); } static object * builtin_dir(self, v) - object *self; - object *v; + object *self; + object *v; { - object *d; - if (v == NULL) { - d = getlocals(); - } - else { - if (!is_moduleobject(v)) { - err_setstr(TypeError, - "dir() argument, must be module or absent"); - return NULL; - } - d = getmoduledict(v); - } - v = getdictkeys(d); - if (sortlist(v) != 0) { - DECREF(v); - v = NULL; - } - return v; + object *d; + if (v == NULL) { + d = getlocals(); + } + else { + if (!is_moduleobject(v)) { + err_setstr(TypeError, + "dir() argument, must be module or absent"); + return NULL; + } + d = getmoduledict(v); + } + v = getdictkeys(d); + if (sortlist(v) != 0) { + DECREF(v); + v = NULL; + } + return v; } static object * builtin_divmod(self, v) - object *self; - object *v; + object *self; + object *v; { - object *x, *y; - long xi, yi, xdivy, xmody; - if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2) { - err_setstr(TypeError, "divmod() requires 2 int arguments"); - return NULL; - } - x = gettupleitem(v, 0); - y = gettupleitem(v, 1); - if (!is_intobject(x) || !is_intobject(y)) { - err_setstr(TypeError, "divmod() requires 2 int arguments"); - return NULL; - } - xi = getintvalue(x); - yi = getintvalue(y); - if (yi == 0) { - err_setstr(TypeError, "divmod() division by zero"); - return NULL; - } - if (yi < 0) { - xdivy = -xi / -yi; - } - else { - xdivy = xi / yi; - } - xmody = xi - xdivy*yi; - if (xmody < 0 && yi > 0 || xmody > 0 && yi < 0) { - xmody += yi; - xdivy -= 1; - } - v = newtupleobject(2); - x = newintobject(xdivy); - y = newintobject(xmody); - if (v == NULL || x == NULL || y == NULL || - settupleitem(v, 0, x) != 0 || - settupleitem(v, 1, y) != 0) { - XDECREF(v); - XDECREF(x); - XDECREF(y); - return NULL; - } - return v; + object *x, *y; + long xi, yi, xdivy, xmody; + if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2) { + err_setstr(TypeError, "divmod() requires 2 int arguments"); + return NULL; + } + x = gettupleitem(v, 0); + y = gettupleitem(v, 1); + if (!is_intobject(x) || !is_intobject(y)) { + err_setstr(TypeError, "divmod() requires 2 int arguments"); + return NULL; + } + xi = getintvalue(x); + yi = getintvalue(y); + if (yi == 0) { + err_setstr(TypeError, "divmod() division by zero"); + return NULL; + } + if (yi < 0) { + xdivy = -xi / -yi; + } + else { + xdivy = xi / yi; + } + xmody = xi - xdivy*yi; + if (xmody < 0 && yi > 0 || xmody > 0 && yi < 0) { + xmody += yi; + xdivy -= 1; + } + v = newtupleobject(2); + x = newintobject(xdivy); + y = newintobject(xmody); + if (v == NULL || x == NULL || y == NULL || + settupleitem(v, 0, x) != 0 || + settupleitem(v, 1, y) != 0) { + XDECREF(v); + XDECREF(x); + XDECREF(y); + return NULL; + } + return v; } static object * exec_eval(v, start) - object *v; - int start; + object *v; + int start; { - object *str = NULL, *globals = NULL, *locals = NULL; - int n; - if (v != NULL) { - if (is_stringobject(v)) - str = v; - else if (is_tupleobject(v) && - ((n = gettuplesize(v)) == 2 || n == 3)) { - str = gettupleitem(v, 0); - globals = gettupleitem(v, 1); - if (n == 3) - locals = gettupleitem(v, 2); - } - } - if (str == NULL || !is_stringobject(str) || - globals != NULL && !is_dictobject(globals) || - locals != NULL && !is_dictobject(locals)) { - err_setstr(TypeError, - "exec/eval arguments must be string[,dict[,dict]]"); - return NULL; - } - return run_string(getstringvalue(str), start, globals, locals); + object *str = NULL, *globals = NULL, *locals = NULL; + int n; + if (v != NULL) { + if (is_stringobject(v)) + str = v; + else if (is_tupleobject(v) && + ((n = gettuplesize(v)) == 2 || n == 3)) { + str = gettupleitem(v, 0); + globals = gettupleitem(v, 1); + if (n == 3) + locals = gettupleitem(v, 2); + } + } + if (str == NULL || !is_stringobject(str) || + globals != NULL && !is_dictobject(globals) || + locals != NULL && !is_dictobject(locals)) { + err_setstr(TypeError, + "exec/eval arguments must be string[,dict[,dict]]"); + return NULL; + } + return run_string(getstringvalue(str), start, globals, locals); } static object * builtin_eval(self, v) - object *self; - object *v; + object *self; + object *v; { - return exec_eval(v, eval_input); + return exec_eval(v, eval_input); } static object * builtin_exec(self, v) - object *self; - object *v; + object *self; + object *v; { - return exec_eval(v, file_input); + return exec_eval(v, file_input); } static object * builtin_float(self, v) - object *self; - object *v; + object *self; + object *v; { - if (v == NULL) { - /* */ - } - else if (is_floatobject(v)) { - INCREF(v); - return v; - } - else if (is_intobject(v)) { - long x = getintvalue(v); - return newfloatobject((double)x); - } - err_setstr(TypeError, "float() argument must be float or int"); - return NULL; + if (v == NULL) { + /* */ + } + else if (is_floatobject(v)) { + INCREF(v); + return v; + } + else if (is_intobject(v)) { + long x = getintvalue(v); + return newfloatobject((double)x); + } + err_setstr(TypeError, "float() argument must be float or int"); + return NULL; } static object * builtin_input(self, v) - object *self; - object *v; + object *self; + object *v; { - FILE *in = sysgetfile("stdin", stdin); - FILE *out = sysgetfile("stdout", stdout); - node *n; - int err; - object *m, *d; - flushline(); - if (v != NULL) - printobject(v, out, PRINT_RAW); - m = add_module("__main__"); - d = getmoduledict(m); - return run_file(in, "<stdin>", expr_input, d, d); + FILE *in = sysgetfile("stdin", stdin); + FILE *out = sysgetfile("stdout", stdout); + node *n; + int err; + object *m, *d; + flushline(); + if (v != NULL) + printobject(v, out, PRINT_RAW); + m = add_module("__main__"); + d = getmoduledict(m); + return run_file(in, "<stdin>", expr_input, d, d); } static object * builtin_int(self, v) - object *self; - object *v; + object *self; + object *v; { - if (v == NULL) { - /* */ - } - else if (is_intobject(v)) { - INCREF(v); - return v; - } - else if (is_floatobject(v)) { - double x = getfloatvalue(v); - return newintobject((long)x); - } - err_setstr(TypeError, "int() argument must be float or int"); - return NULL; + if (v == NULL) { + /* */ + } + else if (is_intobject(v)) { + INCREF(v); + return v; + } + else if (is_floatobject(v)) { + double x = getfloatvalue(v); + return newintobject((long)x); + } + err_setstr(TypeError, "int() argument must be float or int"); + return NULL; } static object * builtin_len(self, v) - object *self; - object *v; + object *self; + object *v; { - long len; - typeobject *tp; - if (v == NULL) { - err_setstr(TypeError, "len() without argument"); - return NULL; - } - tp = v->ob_type; - if (tp->tp_as_sequence != NULL) { - len = (*tp->tp_as_sequence->sq_length)(v); - } - else if (tp->tp_as_mapping != NULL) { - len = (*tp->tp_as_mapping->mp_length)(v); - } - else { - err_setstr(TypeError, "len() of unsized object"); - return NULL; - } - return newintobject(len); + long len; + typeobject *tp; + if (v == NULL) { + err_setstr(TypeError, "len() without argument"); + return NULL; + } + tp = v->ob_type; + if (tp->tp_as_sequence != NULL) { + len = (*tp->tp_as_sequence->sq_length)(v); + } + else if (tp->tp_as_mapping != NULL) { + len = (*tp->tp_as_mapping->mp_length)(v); + } + else { + err_setstr(TypeError, "len() of unsized object"); + return NULL; + } + return newintobject(len); } static object * min_max(v, sign) - object *v; - int sign; + object *v; + int sign; { - int i, n, cmp; - object *w, *x; - sequence_methods *sq; - if (v == NULL) { - err_setstr(TypeError, "min() or max() without argument"); - return NULL; - } - sq = v->ob_type->tp_as_sequence; - if (sq == NULL) { - err_setstr(TypeError, "min() or max() of non-sequence"); - return NULL; - } - n = (*sq->sq_length)(v); - if (n == 0) { - err_setstr(RuntimeError, "min() or max() of empty sequence"); - return NULL; - } - w = (*sq->sq_item)(v, 0); /* Implies INCREF */ - for (i = 1; i < n; i++) { - x = (*sq->sq_item)(v, i); /* Implies INCREF */ - cmp = cmpobject(x, w); - if (cmp * sign > 0) { - DECREF(w); - w = x; - } - else - DECREF(x); - } - return w; + int i, n, cmp; + object *w, *x; + sequence_methods *sq; + if (v == NULL) { + err_setstr(TypeError, "min() or max() without argument"); + return NULL; + } + sq = v->ob_type->tp_as_sequence; + if (sq == NULL) { + err_setstr(TypeError, "min() or max() of non-sequence"); + return NULL; + } + n = (*sq->sq_length)(v); + if (n == 0) { + err_setstr(RuntimeError, "min() or max() of empty sequence"); + return NULL; + } + w = (*sq->sq_item)(v, 0); /* Implies INCREF */ + for (i = 1; i < n; i++) { + x = (*sq->sq_item)(v, i); /* Implies INCREF */ + cmp = cmpobject(x, w); + if (cmp * sign > 0) { + DECREF(w); + w = x; + } + else + DECREF(x); + } + return w; } static object * builtin_min(self, v) - object *self; - object *v; + object *self; + object *v; { - return min_max(v, -1); + return min_max(v, -1); } static object * builtin_max(self, v) - object *self; - object *v; + object *self; + object *v; { - return min_max(v, 1); + return min_max(v, 1); } static object * builtin_open(self, v) - object *self; - object *v; + object *self; + object *v; { - object *name, *mode; - if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2 || - !is_stringobject(name = gettupleitem(v, 0)) || - !is_stringobject(mode = gettupleitem(v, 1))) { - err_setstr(TypeError, "open() requires 2 string arguments"); - return NULL; - } - v = newfileobject(getstringvalue(name), getstringvalue(mode)); - return v; + object *name, *mode; + if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2 || + !is_stringobject(name = gettupleitem(v, 0)) || + !is_stringobject(mode = gettupleitem(v, 1))) { + err_setstr(TypeError, "open() requires 2 string arguments"); + return NULL; + } + v = newfileobject(getstringvalue(name), getstringvalue(mode)); + return v; } static object * builtin_ord(self, v) - object *self; - object *v; + object *self; + object *v; { - if (v == NULL || !is_stringobject(v)) { - err_setstr(TypeError, "ord() must have string argument"); - return NULL; - } - if (getstringsize(v) != 1) { - err_setstr(RuntimeError, "ord() arg must have length 1"); - return NULL; - } - return newintobject((long)(getstringvalue(v)[0] & 0xff)); + if (v == NULL || !is_stringobject(v)) { + err_setstr(TypeError, "ord() must have string argument"); + return NULL; + } + if (getstringsize(v) != 1) { + err_setstr(RuntimeError, "ord() arg must have length 1"); + return NULL; + } + return newintobject((long)(getstringvalue(v)[0] & 0xff)); } static object * builtin_range(self, v) - object *self; - object *v; + object *self; + object *v; { - static char *errmsg = "range() requires 1-3 int arguments"; - int i, n; - long ilow, ihigh, istep; - if (v != NULL && is_intobject(v)) { - ilow = 0; ihigh = getintvalue(v); istep = 1; - } - else if (v == NULL || !is_tupleobject(v)) { - err_setstr(TypeError, errmsg); - return NULL; - } - else { - n = gettuplesize(v); - if (n < 1 || n > 3) { - err_setstr(TypeError, errmsg); - return NULL; - } - for (i = 0; i < n; i++) { - if (!is_intobject(gettupleitem(v, i))) { - err_setstr(TypeError, errmsg); - return NULL; - } - } - if (n == 3) { - istep = getintvalue(gettupleitem(v, 2)); - --n; - } - else - istep = 1; - ihigh = getintvalue(gettupleitem(v, --n)); - if (n > 0) - ilow = getintvalue(gettupleitem(v, 0)); - else - ilow = 0; - } - if (istep == 0) { - err_setstr(RuntimeError, "zero step for range()"); - return NULL; - } - /* XXX ought to check overflow of subtraction */ - if (istep > 0) - n = (ihigh - ilow + istep - 1) / istep; - else - n = (ihigh - ilow + istep + 1) / istep; - if (n < 0) - n = 0; - v = newlistobject(n); - if (v == NULL) - return NULL; - for (i = 0; i < n; i++) { - object *w = newintobject(ilow); - if (w == NULL) { - DECREF(v); - return NULL; - } - setlistitem(v, i, w); - ilow += istep; - } - return v; + static char *errmsg = "range() requires 1-3 int arguments"; + int i, n; + long ilow, ihigh, istep; + if (v != NULL && is_intobject(v)) { + ilow = 0; ihigh = getintvalue(v); istep = 1; + } + else if (v == NULL || !is_tupleobject(v)) { + err_setstr(TypeError, errmsg); + return NULL; + } + else { + n = gettuplesize(v); + if (n < 1 || n > 3) { + err_setstr(TypeError, errmsg); + return NULL; + } + for (i = 0; i < n; i++) { + if (!is_intobject(gettupleitem(v, i))) { + err_setstr(TypeError, errmsg); + return NULL; + } + } + if (n == 3) { + istep = getintvalue(gettupleitem(v, 2)); + --n; + } + else + istep = 1; + ihigh = getintvalue(gettupleitem(v, --n)); + if (n > 0) + ilow = getintvalue(gettupleitem(v, 0)); + else + ilow = 0; + } + if (istep == 0) { + err_setstr(RuntimeError, "zero step for range()"); + return NULL; + } + /* XXX ought to check overflow of subtraction */ + if (istep > 0) + n = (ihigh - ilow + istep - 1) / istep; + else + n = (ihigh - ilow + istep + 1) / istep; + if (n < 0) + n = 0; + v = newlistobject(n); + if (v == NULL) + return NULL; + for (i = 0; i < n; i++) { + object *w = newintobject(ilow); + if (w == NULL) { + DECREF(v); + return NULL; + } + setlistitem(v, i, w); + ilow += istep; + } + return v; } static object * builtin_raw_input(self, v) - object *self; - object *v; + object *self; + object *v; { - FILE *in = sysgetfile("stdin", stdin); - FILE *out = sysgetfile("stdout", stdout); - char *p; - int err; - int n = 1000; - flushline(); - if (v != NULL) - printobject(v, out, PRINT_RAW); - v = newsizedstringobject((char *)NULL, n); - if (v != NULL) { - if ((err = fgets_intr(getstringvalue(v), n+1, in)) != E_OK) { - err_input(err); - DECREF(v); - return NULL; - } - else { - n = strlen(getstringvalue(v)); - if (n > 0 && getstringvalue(v)[n-1] == '\n') - n--; - resizestring(&v, n); - } - } - return v; + FILE *in = sysgetfile("stdin", stdin); + FILE *out = sysgetfile("stdout", stdout); + char *p; + int err; + int n = 1000; + flushline(); + if (v != NULL) + printobject(v, out, PRINT_RAW); + v = newsizedstringobject((char *)NULL, n); + if (v != NULL) { + if ((err = fgets_intr(getstringvalue(v), n+1, in)) != E_OK) { + err_input(err); + DECREF(v); + return NULL; + } + else { + n = strlen(getstringvalue(v)); + if (n > 0 && getstringvalue(v)[n-1] == '\n') + n--; + resizestring(&v, n); + } + } + return v; } static object * builtin_reload(self, v) - object *self; - object *v; + object *self; + object *v; { - return reload_module(v); + return reload_module(v); } static object * builtin_type(self, v) - object *self; - object *v; + object *self; + object *v; { - if (v == NULL) { - err_setstr(TypeError, "type() requres an argument"); - return NULL; - } - v = (object *)v->ob_type; - INCREF(v); - return v; + if (v == NULL) { + err_setstr(TypeError, "type() requres an argument"); + return NULL; + } + v = (object *)v->ob_type; + INCREF(v); + return v; } static struct methodlist builtin_methods[] = { - {"abs", builtin_abs}, - {"chr", builtin_chr}, - {"dir", builtin_dir}, - {"divmod", builtin_divmod}, - {"eval", builtin_eval}, - {"exec", builtin_exec}, - {"float", builtin_float}, - {"input", builtin_input}, - {"int", builtin_int}, - {"len", builtin_len}, - {"max", builtin_max}, - {"min", builtin_min}, - {"open", builtin_open}, /* XXX move to OS module */ - {"ord", builtin_ord}, - {"range", builtin_range}, - {"raw_input", builtin_raw_input}, - {"reload", builtin_reload}, - {"type", builtin_type}, - {NULL, NULL}, + {"abs", builtin_abs}, + {"chr", builtin_chr}, + {"dir", builtin_dir}, + {"divmod", builtin_divmod}, + {"eval", builtin_eval}, + {"exec", builtin_exec}, + {"float", builtin_float}, + {"input", builtin_input}, + {"int", builtin_int}, + {"len", builtin_len}, + {"max", builtin_max}, + {"min", builtin_min}, + {"open", builtin_open}, /* XXX move to OS module */ + {"ord", builtin_ord}, + {"range", builtin_range}, + {"raw_input", builtin_raw_input}, + {"reload", builtin_reload}, + {"type", builtin_type}, + {NULL, NULL}, }; static object *builtin_dict; object * getbuiltin(name) - char *name; + char *name; { - return dictlookup(builtin_dict, name); + return dictlookup(builtin_dict, name); } /* Predefined exceptions */ @@ -526,34 +526,34 @@ object *KeyboardInterrupt; static object * newstdexception(name, message) - char *name, *message; + char *name, *message; { - object *v = newstringobject(message); - if (v == NULL || dictinsert(builtin_dict, name, v) != 0) - fatal("no mem for new standard exception"); - return v; + object *v = newstringobject(message); + if (v == NULL || dictinsert(builtin_dict, name, v) != 0) + fatal("no mem for new standard exception"); + return v; } static void initerrors() { - RuntimeError = newstdexception("RuntimeError", "run-time error"); - EOFError = newstdexception("EOFError", "end-of-file read"); - TypeError = newstdexception("TypeError", "type error"); - MemoryError = newstdexception("MemoryError", "out of memory"); - NameError = newstdexception("NameError", "undefined name"); - SystemError = newstdexception("SystemError", "system error"); - KeyboardInterrupt = - newstdexception("KeyboardInterrupt", "keyboard interrupt"); + RuntimeError = newstdexception("RuntimeError", "run-time error"); + EOFError = newstdexception("EOFError", "end-of-file read"); + TypeError = newstdexception("TypeError", "type error"); + MemoryError = newstdexception("MemoryError", "out of memory"); + NameError = newstdexception("NameError", "undefined name"); + SystemError = newstdexception("SystemError", "system error"); + KeyboardInterrupt = + newstdexception("KeyboardInterrupt", "keyboard interrupt"); } void initbuiltin() { - object *m; - m = initmodule("builtin", builtin_methods); - builtin_dict = getmoduledict(m); - INCREF(builtin_dict); - initerrors(); - (void) dictinsert(builtin_dict, "None", None); + object *m; + m = initmodule("builtin", builtin_methods); + builtin_dict = getmoduledict(m); + INCREF(builtin_dict); + initerrors(); + (void) dictinsert(builtin_dict, "None", None); } |
