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Merge pull request #668 from dhylands/print-prec 

Fix str.modulo when precision is specified.
This commit is contained in:
Paul Sokolovsky 2014-06-06 22:12:42 +03:00
parent 380f147d2e b69f9fa31f
commit 8c75bd26e2
4 changed files with 73 additions and 13 deletions
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14
py/objstr.c
View File

@ -981,7 +981,7 @@ mp_obj_t mp_obj_str_format(uint n_args, const mp_obj_t *args) {
if (arg_looks_integer(arg)) {
switch (type) {
case 'b':
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 2, 'a', flags, fill, width);
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 2, 'a', flags, fill, width, 0);
continue;
case 'c':
@ -994,7 +994,7 @@ mp_obj_t mp_obj_str_format(uint n_args, const mp_obj_t *args) {
case '\0': // No explicit format type implies 'd'
case 'n': // I don't think we support locales in uPy so use 'd'
case 'd':
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 10, 'a', flags, fill, width);
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 10, 'a', flags, fill, width, 0);
continue;
case 'o':
@ -1002,12 +1002,12 @@ mp_obj_t mp_obj_str_format(uint n_args, const mp_obj_t *args) {
flags |= PF_FLAG_SHOW_OCTAL_LETTER;
}
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 8, 'a', flags, fill, width);
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 8, 'a', flags, fill, width, 0);
continue;
case 'X':
case 'x':
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 16, type - ('X' - 'A'), flags, fill, width);
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 16, type - ('X' - 'A'), flags, fill, width, 0);
continue;
case 'e':
@ -1255,7 +1255,7 @@ not_enough_args:
case 'd':
case 'i':
case 'u':
pfenv_print_mp_int(&pfenv_vstr, arg_as_int(arg), 1, 10, 'a', flags, fill, width);
pfenv_print_mp_int(&pfenv_vstr, arg_as_int(arg), 1, 10, 'a', flags, fill, width, prec);
break;
#if MICROPY_PY_BUILTINS_FLOAT
@ -1273,7 +1273,7 @@ not_enough_args:
if (alt) {
flags |= (PF_FLAG_SHOW_PREFIX | PF_FLAG_SHOW_OCTAL_LETTER);
}
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 8, 'a', flags, fill, width);
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 8, 'a', flags, fill, width, prec);
break;
case 'r':
@ -1296,7 +1296,7 @@ not_enough_args:
case 'X':
case 'x':
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 16, *str - ('X' - 'A'), flags | alt, fill, width);
pfenv_print_mp_int(&pfenv_vstr, arg, 1, 16, *str - ('X' - 'A'), flags | alt, fill, width, prec);
break;
default:

52
py/pfenv.c
View File

@ -91,8 +91,10 @@ int pfenv_print_strn(const pfenv_t *pfenv, const char *str, unsigned int len, in
left_pad -= p;
}
}
if (len) {
pfenv->print_strn(pfenv->data, str, len);
total_chars_printed += len;
}
if (right_pad > 0) {
total_chars_printed += right_pad;
while (right_pad > 0) {
@ -181,13 +183,19 @@ int pfenv_print_int(const pfenv_t *pfenv, machine_uint_t x, int sgn, int base, i
return len;
}
int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int base_char, int flags, char fill, int width) {
int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int base_char, int flags, char fill, int width, int prec) {
if (!MP_OBJ_IS_INT(x)) {
// This will convert booleans to int, or raise an error for
// non-integer types.
x = MP_OBJ_NEW_SMALL_INT(mp_obj_get_int(x));
}
if ((flags & (PF_FLAG_LEFT_ADJUST | PF_FLAG_CENTER_ADJUST)) == 0 && fill == '0') {
if (prec > width) {
width = prec;
}
prec = 0;
}
char prefix_buf[4];
char *prefix = prefix_buf;
@ -230,6 +238,9 @@ int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int
int fmt_size = 0;
char *str;
if (prec > 1) {
flags |= PF_FLAG_PAD_AFTER_SIGN;
}
char sign = '\0';
if (flags & PF_FLAG_PAD_AFTER_SIGN) {
// We add the pad in this function, so since the pad goes after
@ -245,7 +256,39 @@ int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int
x, base, prefix, base_char, comma);
}
int spaces_before = 0;
int spaces_after = 0;
if (prec > 1) {
// If prec was specified, then prec specifies the width to zero-pad the
// the number to. This zero-padded number then gets left or right
// aligned in width characters.
int prec_width = fmt_size; // The digits
if (prec_width < prec) {
prec_width = prec;
}
if (flags & PF_FLAG_PAD_AFTER_SIGN) {
if (sign) {
prec_width++;
}
prec_width += prefix_len;
}
if (prec_width < width) {
if (flags & PF_FLAG_LEFT_ADJUST) {
spaces_after = width - prec_width;
} else {
spaces_before = width - prec_width;
}
}
fill = '0';
flags &= ~PF_FLAG_LEFT_ADJUST;
}
int len = 0;
if (spaces_before) {
len += pfenv_print_strn(pfenv, "", 0, 0, ' ', spaces_before);
}
if (flags & PF_FLAG_PAD_AFTER_SIGN) {
// pad after sign implies pad after prefix as well.
if (sign) {
@ -257,9 +300,16 @@ int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int
width -= prefix_len;
}
}
if (prec > 1) {
width = prec;
}
len += pfenv_print_strn(pfenv, str, fmt_size, flags, fill, width);
if (spaces_after) {
len += pfenv_print_strn(pfenv, "", 0, 0, ' ', spaces_after);
}
if (buf != stack_buf) {
m_free(buf, buf_size);
}

2
py/pfenv.h
View File

@ -45,7 +45,7 @@ void pfenv_vstr_add_strn(void *data, const char *str, unsigned int len);
int pfenv_print_strn(const pfenv_t *pfenv, const char *str, unsigned int len, int flags, char fill, int width);
int pfenv_print_int(const pfenv_t *pfenv, machine_uint_t x, int sgn, int base, int base_char, int flags, char fill, int width);
int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int base_char, int flags, char fill, int width);
int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int base_char, int flags, char fill, int width, int prec);
#if MICROPY_PY_BUILTINS_FLOAT
int pfenv_print_float(const pfenv_t *pfenv, mp_float_t f, char fmt, int flags, char fill, int width, int prec);
#endif

14
tests/basics/string-format-modulo.py
View File

@ -51,8 +51,18 @@ print("%#06x" % 18)
print("%*d" % (5, 10))
print("%*.*d" % (2, 2, 20))
# TODO: Formatted incorrectly
#print("%*.*d" % (5, 8, 20))
print("%*.*d" % (5, 8, 20))
print(">%8.4d<" % -12)
print(">% 8.4d<" % -12)
print(">%+8.4d<" % 12)
print(">%+8.4d<" % -12)
print(">%08.4d<" % -12)
print(">%08.4d<" % 12)
print(">%-8.4d<" % -12)
print(">%-08.4d<" % -12)
print(">%-+08.4d<" % -12)
print(">%-+08.4d<" % 12)
# Cases when "*" used and there's not enough values total
try: