| /* implements the unicode (as opposed to string) version of the | |
| built-in formatters for string, int, float. that is, the versions | |
| of int.__float__, etc., that take and return unicode objects */ | |
| #include "Python.h" | |
| #include "pycore_fileutils.h" | |
| #include <locale.h> | |
| /* Raises an exception about an unknown presentation type for this | |
| * type. */ | |
| static void | |
| unknown_presentation_type(Py_UCS4 presentation_type, | |
| const char* type_name) | |
| { | |
| /* %c might be out-of-range, hence the two cases. */ | |
| if (presentation_type > 32 && presentation_type < 128) | |
| PyErr_Format(PyExc_ValueError, | |
| "Unknown format code '%c' " | |
| "for object of type '%.200s'", | |
| (char)presentation_type, | |
| type_name); | |
| else | |
| PyErr_Format(PyExc_ValueError, | |
| "Unknown format code '\\x%x' " | |
| "for object of type '%.200s'", | |
| (unsigned int)presentation_type, | |
| type_name); | |
| } | |
| static void | |
| invalid_thousands_separator_type(char specifier, Py_UCS4 presentation_type) | |
| { | |
| assert(specifier == ',' || specifier == '_'); | |
| if (presentation_type > 32 && presentation_type < 128) | |
| PyErr_Format(PyExc_ValueError, | |
| "Cannot specify '%c' with '%c'.", | |
| specifier, (char)presentation_type); | |
| else | |
| PyErr_Format(PyExc_ValueError, | |
| "Cannot specify '%c' with '\\x%x'.", | |
| specifier, (unsigned int)presentation_type); | |
| } | |
| static void | |
| invalid_comma_and_underscore(void) | |
| { | |
| PyErr_Format(PyExc_ValueError, "Cannot specify both ',' and '_'."); | |
| } | |
| /* | |
| get_integer consumes 0 or more decimal digit characters from an | |
| input string, updates *result with the corresponding positive | |
| integer, and returns the number of digits consumed. | |
| returns -1 on error. | |
| */ | |
| static int | |
| get_integer(PyObject *str, Py_ssize_t *ppos, Py_ssize_t end, | |
| Py_ssize_t *result) | |
| { | |
| Py_ssize_t accumulator, digitval, pos = *ppos; | |
| int numdigits; | |
| int kind = PyUnicode_KIND(str); | |
| const void *data = PyUnicode_DATA(str); | |
| accumulator = numdigits = 0; | |
| for (; pos < end; pos++, numdigits++) { | |
| digitval = Py_UNICODE_TODECIMAL(PyUnicode_READ(kind, data, pos)); | |
| if (digitval < 0) | |
| break; | |
| /* | |
| Detect possible overflow before it happens: | |
| accumulator * 10 + digitval > PY_SSIZE_T_MAX if and only if | |
| accumulator > (PY_SSIZE_T_MAX - digitval) / 10. | |
| */ | |
| if (accumulator > (PY_SSIZE_T_MAX - digitval) / 10) { | |
| PyErr_Format(PyExc_ValueError, | |
| "Too many decimal digits in format string"); | |
| *ppos = pos; | |
| return -1; | |
| } | |
| accumulator = accumulator * 10 + digitval; | |
| } | |
| *ppos = pos; | |
| *result = accumulator; | |
| return numdigits; | |
| } | |
| /************************************************************************/ | |
| /*********** standard format specifier parsing **************************/ | |
| /************************************************************************/ | |
| /* returns true if this character is a specifier alignment token */ | |
| Py_LOCAL_INLINE(int) | |
| is_alignment_token(Py_UCS4 c) | |
| { | |
| switch (c) { | |
| case '<': case '>': case '=': case '^': | |
| return 1; | |
| default: | |
| return 0; | |
| } | |
| } | |
| /* returns true if this character is a sign element */ | |
| Py_LOCAL_INLINE(int) | |
| is_sign_element(Py_UCS4 c) | |
| { | |
| switch (c) { | |
| case ' ': case '+': case '-': | |
| return 1; | |
| default: | |
| return 0; | |
| } | |
| } | |
| /* Locale type codes. LT_NO_LOCALE must be zero. */ | |
| enum LocaleType { | |
| LT_NO_LOCALE = 0, | |
| LT_DEFAULT_LOCALE = ',', | |
| LT_UNDERSCORE_LOCALE = '_', | |
| LT_UNDER_FOUR_LOCALE, | |
| LT_CURRENT_LOCALE | |
| }; | |
| typedef struct { | |
| Py_UCS4 fill_char; | |
| Py_UCS4 align; | |
| int alternate; | |
| Py_UCS4 sign; | |
| Py_ssize_t width; | |
| enum LocaleType thousands_separators; | |
| Py_ssize_t precision; | |
| Py_UCS4 type; | |
| } InternalFormatSpec; | |
| #if 0 | |
| /* Occasionally useful for debugging. Should normally be commented out. */ | |
| static void | |
| DEBUG_PRINT_FORMAT_SPEC(InternalFormatSpec *format) | |
| { | |
| printf("internal format spec: fill_char %d\n", format->fill_char); | |
| printf("internal format spec: align %d\n", format->align); | |
| printf("internal format spec: alternate %d\n", format->alternate); | |
| printf("internal format spec: sign %d\n", format->sign); | |
| printf("internal format spec: width %zd\n", format->width); | |
| printf("internal format spec: thousands_separators %d\n", | |
| format->thousands_separators); | |
| printf("internal format spec: precision %zd\n", format->precision); | |
| printf("internal format spec: type %c\n", format->type); | |
| printf("\n"); | |
| } | |
| #endif | |
| /* | |
| ptr points to the start of the format_spec, end points just past its end. | |
| fills in format with the parsed information. | |
| returns 1 on success, 0 on failure. | |
| if failure, sets the exception | |
| */ | |
| static int | |
| parse_internal_render_format_spec(PyObject *format_spec, | |
| Py_ssize_t start, Py_ssize_t end, | |
| InternalFormatSpec *format, | |
| char default_type, | |
| char default_align) | |
| { | |
| Py_ssize_t pos = start; | |
| int kind = PyUnicode_KIND(format_spec); | |
| const void *data = PyUnicode_DATA(format_spec); | |
| /* end-pos is used throughout this code to specify the length of | |
| the input string */ | |
| #define READ_spec(index) PyUnicode_READ(kind, data, index) | |
| Py_ssize_t consumed; | |
| int align_specified = 0; | |
| int fill_char_specified = 0; | |
| format->fill_char = ' '; | |
| format->align = default_align; | |
| format->alternate = 0; | |
| format->sign = '\0'; | |
| format->width = -1; | |
| format->thousands_separators = LT_NO_LOCALE; | |
| format->precision = -1; | |
| format->type = default_type; | |
| /* If the second char is an alignment token, | |
| then parse the fill char */ | |
| if (end-pos >= 2 && is_alignment_token(READ_spec(pos+1))) { | |
| format->align = READ_spec(pos+1); | |
| format->fill_char = READ_spec(pos); | |
| fill_char_specified = 1; | |
| align_specified = 1; | |
| pos += 2; | |
| } | |
| else if (end-pos >= 1 && is_alignment_token(READ_spec(pos))) { | |
| format->align = READ_spec(pos); | |
| align_specified = 1; | |
| ++pos; | |
| } | |
| /* Parse the various sign options */ | |
| if (end-pos >= 1 && is_sign_element(READ_spec(pos))) { | |
| format->sign = READ_spec(pos); | |
| ++pos; | |
| } | |
| /* If the next character is #, we're in alternate mode. This only | |
| applies to integers. */ | |
| if (end-pos >= 1 && READ_spec(pos) == '#') { | |
| format->alternate = 1; | |
| ++pos; | |
| } | |
| /* The special case for 0-padding (backwards compat) */ | |
| if (!fill_char_specified && end-pos >= 1 && READ_spec(pos) == '0') { | |
| format->fill_char = '0'; | |
| if (!align_specified && default_align == '>') { | |
| format->align = '='; | |
| } | |
| ++pos; | |
| } | |
| consumed = get_integer(format_spec, &pos, end, &format->width); | |
| if (consumed == -1) | |
| /* Overflow error. Exception already set. */ | |
| return 0; | |
| /* If consumed is 0, we didn't consume any characters for the | |
| width. In that case, reset the width to -1, because | |
| get_integer() will have set it to zero. -1 is how we record | |
| that the width wasn't specified. */ | |
| if (consumed == 0) | |
| format->width = -1; | |
| /* Comma signifies add thousands separators */ | |
| if (end-pos && READ_spec(pos) == ',') { | |
| format->thousands_separators = LT_DEFAULT_LOCALE; | |
| ++pos; | |
| } | |
| /* Underscore signifies add thousands separators */ | |
| if (end-pos && READ_spec(pos) == '_') { | |
| if (format->thousands_separators != LT_NO_LOCALE) { | |
| invalid_comma_and_underscore(); | |
| return 0; | |
| } | |
| format->thousands_separators = LT_UNDERSCORE_LOCALE; | |
| ++pos; | |
| } | |
| if (end-pos && READ_spec(pos) == ',') { | |
| if (format->thousands_separators == LT_UNDERSCORE_LOCALE) { | |
| invalid_comma_and_underscore(); | |
| return 0; | |
| } | |
| } | |
| /* Parse field precision */ | |
| if (end-pos && READ_spec(pos) == '.') { | |
| ++pos; | |
| consumed = get_integer(format_spec, &pos, end, &format->precision); | |
| if (consumed == -1) | |
| /* Overflow error. Exception already set. */ | |
| return 0; | |
| /* Not having a precision after a dot is an error. */ | |
| if (consumed == 0) { | |
| PyErr_Format(PyExc_ValueError, | |
| "Format specifier missing precision"); | |
| return 0; | |
| } | |
| } | |
| /* Finally, parse the type field. */ | |
| if (end-pos > 1) { | |
| /* More than one char remain, invalid format specifier. */ | |
| PyErr_Format(PyExc_ValueError, "Invalid format specifier"); | |
| return 0; | |
| } | |
| if (end-pos == 1) { | |
| format->type = READ_spec(pos); | |
| ++pos; | |
| } | |
| /* Do as much validating as we can, just by looking at the format | |
| specifier. Do not take into account what type of formatting | |
| we're doing (int, float, string). */ | |
| if (format->thousands_separators) { | |
| switch (format->type) { | |
| case 'd': | |
| case 'e': | |
| case 'f': | |
| case 'g': | |
| case 'E': | |
| case 'G': | |
| case '%': | |
| case 'F': | |
| case '\0': | |
| /* These are allowed. See PEP 378.*/ | |
| break; | |
| case 'b': | |
| case 'o': | |
| case 'x': | |
| case 'X': | |
| /* Underscores are allowed in bin/oct/hex. See PEP 515. */ | |
| if (format->thousands_separators == LT_UNDERSCORE_LOCALE) { | |
| /* Every four digits, not every three, in bin/oct/hex. */ | |
| format->thousands_separators = LT_UNDER_FOUR_LOCALE; | |
| break; | |
| } | |
| /* fall through */ | |
| default: | |
| invalid_thousands_separator_type(format->thousands_separators, format->type); | |
| return 0; | |
| } | |
| } | |
| assert (format->align <= 127); | |
| assert (format->sign <= 127); | |
| return 1; | |
| } | |
| /* Calculate the padding needed. */ | |
| static void | |
| calc_padding(Py_ssize_t nchars, Py_ssize_t width, Py_UCS4 align, | |
| Py_ssize_t *n_lpadding, Py_ssize_t *n_rpadding, | |
| Py_ssize_t *n_total) | |
| { | |
| if (width >= 0) { | |
| if (nchars > width) | |
| *n_total = nchars; | |
| else | |
| *n_total = width; | |
| } | |
| else { | |
| /* not specified, use all of the chars and no more */ | |
| *n_total = nchars; | |
| } | |
| /* Figure out how much leading space we need, based on the | |
| aligning */ | |
| if (align == '>') | |
| *n_lpadding = *n_total - nchars; | |
| else if (align == '^') | |
| *n_lpadding = (*n_total - nchars) / 2; | |
| else if (align == '<' || align == '=') | |
| *n_lpadding = 0; | |
| else { | |
| /* We should never have an unspecified alignment. */ | |
| Py_UNREACHABLE(); | |
| } | |
| *n_rpadding = *n_total - nchars - *n_lpadding; | |
| } | |
| /* Do the padding, and return a pointer to where the caller-supplied | |
| content goes. */ | |
| static int | |
| fill_padding(_PyUnicodeWriter *writer, | |
| Py_ssize_t nchars, | |
| Py_UCS4 fill_char, Py_ssize_t n_lpadding, | |
| Py_ssize_t n_rpadding) | |
| { | |
| Py_ssize_t pos; | |
| /* Pad on left. */ | |
| if (n_lpadding) { | |
| pos = writer->pos; | |
| _PyUnicode_FastFill(writer->buffer, pos, n_lpadding, fill_char); | |
| } | |
| /* Pad on right. */ | |
| if (n_rpadding) { | |
| pos = writer->pos + nchars + n_lpadding; | |
| _PyUnicode_FastFill(writer->buffer, pos, n_rpadding, fill_char); | |
| } | |
| /* Pointer to the user content. */ | |
| writer->pos += n_lpadding; | |
| return 0; | |
| } | |
| /************************************************************************/ | |
| /*********** common routines for numeric formatting *********************/ | |
| /************************************************************************/ | |
| /* Locale info needed for formatting integers and the part of floats | |
| before and including the decimal. Note that locales only support | |
| 8-bit chars, not unicode. */ | |
| typedef struct { | |
| PyObject *decimal_point; | |
| PyObject *thousands_sep; | |
| const char *grouping; | |
| char *grouping_buffer; | |
| } LocaleInfo; | |
| #define LocaleInfo_STATIC_INIT {0, 0, 0, 0} | |
| /* describes the layout for an integer, see the comment in | |
| calc_number_widths() for details */ | |
| typedef struct { | |
| Py_ssize_t n_lpadding; | |
| Py_ssize_t n_prefix; | |
| Py_ssize_t n_spadding; | |
| Py_ssize_t n_rpadding; | |
| char sign; | |
| Py_ssize_t n_sign; /* number of digits needed for sign (0/1) */ | |
| Py_ssize_t n_grouped_digits; /* Space taken up by the digits, including | |
| any grouping chars. */ | |
| Py_ssize_t n_decimal; /* 0 if only an integer */ | |
| Py_ssize_t n_remainder; /* Digits in decimal and/or exponent part, | |
| excluding the decimal itself, if | |
| present. */ | |
| /* These 2 are not the widths of fields, but are needed by | |
| STRINGLIB_GROUPING. */ | |
| Py_ssize_t n_digits; /* The number of digits before a decimal | |
| or exponent. */ | |
| Py_ssize_t n_min_width; /* The min_width we used when we computed | |
| the n_grouped_digits width. */ | |
| } NumberFieldWidths; | |
| /* Given a number of the form: | |
| digits[remainder] | |
| where ptr points to the start and end points to the end, find where | |
| the integer part ends. This could be a decimal, an exponent, both, | |
| or neither. | |
| If a decimal point is present, set *has_decimal and increment | |
| remainder beyond it. | |
| Results are undefined (but shouldn't crash) for improperly | |
| formatted strings. | |
| */ | |
| static void | |
| parse_number(PyObject *s, Py_ssize_t pos, Py_ssize_t end, | |
| Py_ssize_t *n_remainder, int *has_decimal) | |
| { | |
| Py_ssize_t remainder; | |
| int kind = PyUnicode_KIND(s); | |
| const void *data = PyUnicode_DATA(s); | |
| while (pos<end && Py_ISDIGIT(PyUnicode_READ(kind, data, pos))) | |
| ++pos; | |
| remainder = pos; | |
| /* Does remainder start with a decimal point? */ | |
| *has_decimal = pos<end && PyUnicode_READ(kind, data, remainder) == '.'; | |
| /* Skip the decimal point. */ | |
| if (*has_decimal) | |
| remainder++; | |
| *n_remainder = end - remainder; | |
| } | |
| /* not all fields of format are used. for example, precision is | |
| unused. should this take discrete params in order to be more clear | |
| about what it does? or is passing a single format parameter easier | |
| and more efficient enough to justify a little obfuscation? | |
| Return -1 on error. */ | |
| static Py_ssize_t | |
| calc_number_widths(NumberFieldWidths *spec, Py_ssize_t n_prefix, | |
| Py_UCS4 sign_char, Py_ssize_t n_start, | |
| Py_ssize_t n_end, Py_ssize_t n_remainder, | |
| int has_decimal, const LocaleInfo *locale, | |
| const InternalFormatSpec *format, Py_UCS4 *maxchar) | |
| { | |
| Py_ssize_t n_non_digit_non_padding; | |
| Py_ssize_t n_padding; | |
| spec->n_digits = n_end - n_start - n_remainder - (has_decimal?1:0); | |
| spec->n_lpadding = 0; | |
| spec->n_prefix = n_prefix; | |
| spec->n_decimal = has_decimal ? PyUnicode_GET_LENGTH(locale->decimal_point) : 0; | |
| spec->n_remainder = n_remainder; | |
| spec->n_spadding = 0; | |
| spec->n_rpadding = 0; | |
| spec->sign = '\0'; | |
| spec->n_sign = 0; | |
| /* the output will look like: | |
| | | | |
| | <lpadding> <sign> <prefix> <spadding> <grouped_digits> <decimal> <remainder> <rpadding> | | |
| | | | |
| sign is computed from format->sign and the actual | |
| sign of the number | |
| prefix is given (it's for the '0x' prefix) | |
| digits is already known | |
| the total width is either given, or computed from the | |
| actual digits | |
| only one of lpadding, spadding, and rpadding can be non-zero, | |
| and it's calculated from the width and other fields | |
| */ | |
| /* compute the various parts we're going to write */ | |
| switch (format->sign) { | |
| case '+': | |
| /* always put a + or - */ | |
| spec->n_sign = 1; | |
| spec->sign = (sign_char == '-' ? '-' : '+'); | |
| break; | |
| case ' ': | |
| spec->n_sign = 1; | |
| spec->sign = (sign_char == '-' ? '-' : ' '); | |
| break; | |
| default: | |
| /* Not specified, or the default (-) */ | |
| if (sign_char == '-') { | |
| spec->n_sign = 1; | |
| spec->sign = '-'; | |
| } | |
| } | |
| /* The number of chars used for non-digits and non-padding. */ | |
| n_non_digit_non_padding = spec->n_sign + spec->n_prefix + spec->n_decimal + | |
| spec->n_remainder; | |
| /* min_width can go negative, that's okay. format->width == -1 means | |
| we don't care. */ | |
| if (format->fill_char == '0' && format->align == '=') | |
| spec->n_min_width = format->width - n_non_digit_non_padding; | |
| else | |
| spec->n_min_width = 0; | |
| if (spec->n_digits == 0) | |
| /* This case only occurs when using 'c' formatting, we need | |
| to special case it because the grouping code always wants | |
| to have at least one character. */ | |
| spec->n_grouped_digits = 0; | |
| else { | |
| Py_UCS4 grouping_maxchar; | |
| spec->n_grouped_digits = _PyUnicode_InsertThousandsGrouping( | |
| NULL, 0, | |
| NULL, 0, spec->n_digits, | |
| spec->n_min_width, | |
| locale->grouping, locale->thousands_sep, &grouping_maxchar); | |
| if (spec->n_grouped_digits == -1) { | |
| return -1; | |
| } | |
| *maxchar = Py_MAX(*maxchar, grouping_maxchar); | |
| } | |
| /* Given the desired width and the total of digit and non-digit | |
| space we consume, see if we need any padding. format->width can | |
| be negative (meaning no padding), but this code still works in | |
| that case. */ | |
| n_padding = format->width - | |
| (n_non_digit_non_padding + spec->n_grouped_digits); | |
| if (n_padding > 0) { | |
| /* Some padding is needed. Determine if it's left, space, or right. */ | |
| switch (format->align) { | |
| case '<': | |
| spec->n_rpadding = n_padding; | |
| break; | |
| case '^': | |
| spec->n_lpadding = n_padding / 2; | |
| spec->n_rpadding = n_padding - spec->n_lpadding; | |
| break; | |
| case '=': | |
| spec->n_spadding = n_padding; | |
| break; | |
| case '>': | |
| spec->n_lpadding = n_padding; | |
| break; | |
| default: | |
| /* Shouldn't get here */ | |
| Py_UNREACHABLE(); | |
| } | |
| } | |
| if (spec->n_lpadding || spec->n_spadding || spec->n_rpadding) | |
| *maxchar = Py_MAX(*maxchar, format->fill_char); | |
| if (spec->n_decimal) | |
| *maxchar = Py_MAX(*maxchar, PyUnicode_MAX_CHAR_VALUE(locale->decimal_point)); | |
| return spec->n_lpadding + spec->n_sign + spec->n_prefix + | |
| spec->n_spadding + spec->n_grouped_digits + spec->n_decimal + | |
| spec->n_remainder + spec->n_rpadding; | |
| } | |
| /* Fill in the digit parts of a number's string representation, | |
| as determined in calc_number_widths(). | |
| Return -1 on error, or 0 on success. */ | |
| static int | |
| fill_number(_PyUnicodeWriter *writer, const NumberFieldWidths *spec, | |
| PyObject *digits, Py_ssize_t d_start, | |
| PyObject *prefix, Py_ssize_t p_start, | |
| Py_UCS4 fill_char, | |
| LocaleInfo *locale, int toupper) | |
| { | |
| /* Used to keep track of digits, decimal, and remainder. */ | |
| Py_ssize_t d_pos = d_start; | |
| const unsigned int kind = writer->kind; | |
| const void *data = writer->data; | |
| Py_ssize_t r; | |
| if (spec->n_lpadding) { | |
| _PyUnicode_FastFill(writer->buffer, | |
| writer->pos, spec->n_lpadding, fill_char); | |
| writer->pos += spec->n_lpadding; | |
| } | |
| if (spec->n_sign == 1) { | |
| PyUnicode_WRITE(kind, data, writer->pos, spec->sign); | |
| writer->pos++; | |
| } | |
| if (spec->n_prefix) { | |
| _PyUnicode_FastCopyCharacters(writer->buffer, writer->pos, | |
| prefix, p_start, | |
| spec->n_prefix); | |
| if (toupper) { | |
| Py_ssize_t t; | |
| for (t = 0; t < spec->n_prefix; t++) { | |
| Py_UCS4 c = PyUnicode_READ(kind, data, writer->pos + t); | |
| c = Py_TOUPPER(c); | |
| assert (c <= 127); | |
| PyUnicode_WRITE(kind, data, writer->pos + t, c); | |
| } | |
| } | |
| writer->pos += spec->n_prefix; | |
| } | |
| if (spec->n_spadding) { | |
| _PyUnicode_FastFill(writer->buffer, | |
| writer->pos, spec->n_spadding, fill_char); | |
| writer->pos += spec->n_spadding; | |
| } | |
| /* Only for type 'c' special case, it has no digits. */ | |
| if (spec->n_digits != 0) { | |
| /* Fill the digits with InsertThousandsGrouping. */ | |
| r = _PyUnicode_InsertThousandsGrouping( | |
| writer, spec->n_grouped_digits, | |
| digits, d_pos, spec->n_digits, | |
| spec->n_min_width, | |
| locale->grouping, locale->thousands_sep, NULL); | |
| if (r == -1) | |
| return -1; | |
| assert(r == spec->n_grouped_digits); | |
| d_pos += spec->n_digits; | |
| } | |
| if (toupper) { | |
| Py_ssize_t t; | |
| for (t = 0; t < spec->n_grouped_digits; t++) { | |
| Py_UCS4 c = PyUnicode_READ(kind, data, writer->pos + t); | |
| c = Py_TOUPPER(c); | |
| if (c > 127) { | |
| PyErr_SetString(PyExc_SystemError, "non-ascii grouped digit"); | |
| return -1; | |
| } | |
| PyUnicode_WRITE(kind, data, writer->pos + t, c); | |
| } | |
| } | |
| writer->pos += spec->n_grouped_digits; | |
| if (spec->n_decimal) { | |
| _PyUnicode_FastCopyCharacters( | |
| writer->buffer, writer->pos, | |
| locale->decimal_point, 0, spec->n_decimal); | |
| writer->pos += spec->n_decimal; | |
| d_pos += 1; | |
| } | |
| if (spec->n_remainder) { | |
| _PyUnicode_FastCopyCharacters( | |
| writer->buffer, writer->pos, | |
| digits, d_pos, spec->n_remainder); | |
| writer->pos += spec->n_remainder; | |
| /* d_pos += spec->n_remainder; */ | |
| } | |
| if (spec->n_rpadding) { | |
| _PyUnicode_FastFill(writer->buffer, | |
| writer->pos, spec->n_rpadding, | |
| fill_char); | |
| writer->pos += spec->n_rpadding; | |
| } | |
| return 0; | |
| } | |
| static const char no_grouping[1] = {CHAR_MAX}; | |
| /* Find the decimal point character(s?), thousands_separator(s?), and | |
| grouping description, either for the current locale if type is | |
| LT_CURRENT_LOCALE, a hard-coded locale if LT_DEFAULT_LOCALE or | |
| LT_UNDERSCORE_LOCALE/LT_UNDER_FOUR_LOCALE, or none if LT_NO_LOCALE. */ | |
| static int | |
| get_locale_info(enum LocaleType type, LocaleInfo *locale_info) | |
| { | |
| switch (type) { | |
| case LT_CURRENT_LOCALE: { | |
| struct lconv *lc = localeconv(); | |
| if (_Py_GetLocaleconvNumeric(lc, | |
| &locale_info->decimal_point, | |
| &locale_info->thousands_sep) < 0) { | |
| return -1; | |
| } | |
| /* localeconv() grouping can become a dangling pointer or point | |
| to a different string if another thread calls localeconv() during | |
| the string formatting. Copy the string to avoid this risk. */ | |
| locale_info->grouping_buffer = _PyMem_Strdup(lc->grouping); | |
| if (locale_info->grouping_buffer == NULL) { | |
| PyErr_NoMemory(); | |
| return -1; | |
| } | |
| locale_info->grouping = locale_info->grouping_buffer; | |
| break; | |
| } | |
| case LT_DEFAULT_LOCALE: | |
| case LT_UNDERSCORE_LOCALE: | |
| case LT_UNDER_FOUR_LOCALE: | |
| locale_info->decimal_point = PyUnicode_FromOrdinal('.'); | |
| locale_info->thousands_sep = PyUnicode_FromOrdinal( | |
| type == LT_DEFAULT_LOCALE ? ',' : '_'); | |
| if (!locale_info->decimal_point || !locale_info->thousands_sep) | |
| return -1; | |
| if (type != LT_UNDER_FOUR_LOCALE) | |
| locale_info->grouping = "\3"; /* Group every 3 characters. The | |
| (implicit) trailing 0 means repeat | |
| infinitely. */ | |
| else | |
| locale_info->grouping = "\4"; /* Bin/oct/hex group every four. */ | |
| break; | |
| case LT_NO_LOCALE: | |
| locale_info->decimal_point = PyUnicode_FromOrdinal('.'); | |
| locale_info->thousands_sep = PyUnicode_New(0, 0); | |
| if (!locale_info->decimal_point || !locale_info->thousands_sep) | |
| return -1; | |
| locale_info->grouping = no_grouping; | |
| break; | |
| } | |
| return 0; | |
| } | |
| static void | |
| free_locale_info(LocaleInfo *locale_info) | |
| { | |
| Py_XDECREF(locale_info->decimal_point); | |
| Py_XDECREF(locale_info->thousands_sep); | |
| PyMem_Free(locale_info->grouping_buffer); | |
| } | |
| /************************************************************************/ | |
| /*********** string formatting ******************************************/ | |
| /************************************************************************/ | |
| static int | |
| format_string_internal(PyObject *value, const InternalFormatSpec *format, | |
| _PyUnicodeWriter *writer) | |
| { | |
| Py_ssize_t lpad; | |
| Py_ssize_t rpad; | |
| Py_ssize_t total; | |
| Py_ssize_t len; | |
| int result = -1; | |
| Py_UCS4 maxchar; | |
| assert(PyUnicode_IS_READY(value)); | |
| len = PyUnicode_GET_LENGTH(value); | |
| /* sign is not allowed on strings */ | |
| if (format->sign != '\0') { | |
| if (format->sign == ' ') { | |
| PyErr_SetString(PyExc_ValueError, | |
| "Space not allowed in string format specifier"); | |
| } | |
| else { | |
| PyErr_SetString(PyExc_ValueError, | |
| "Sign not allowed in string format specifier"); | |
| } | |
| goto done; | |
| } | |
| /* alternate is not allowed on strings */ | |
| if (format->alternate) { | |
| PyErr_SetString(PyExc_ValueError, | |
| "Alternate form (#) not allowed in string format " | |
| "specifier"); | |
| goto done; | |
| } | |
| /* '=' alignment not allowed on strings */ | |
| if (format->align == '=') { | |
| PyErr_SetString(PyExc_ValueError, | |
| "'=' alignment not allowed " | |
| "in string format specifier"); | |
| goto done; | |
| } | |
| if ((format->width == -1 || format->width <= len) | |
| && (format->precision == -1 || format->precision >= len)) { | |
| /* Fast path */ | |
| return _PyUnicodeWriter_WriteStr(writer, value); | |
| } | |
| /* if precision is specified, output no more that format.precision | |
| characters */ | |
| if (format->precision >= 0 && len >= format->precision) { | |
| len = format->precision; | |
| } | |
| calc_padding(len, format->width, format->align, &lpad, &rpad, &total); | |
| maxchar = writer->maxchar; | |
| if (lpad != 0 || rpad != 0) | |
| maxchar = Py_MAX(maxchar, format->fill_char); | |
| if (PyUnicode_MAX_CHAR_VALUE(value) > maxchar) { | |
| Py_UCS4 valmaxchar = _PyUnicode_FindMaxChar(value, 0, len); | |
| maxchar = Py_MAX(maxchar, valmaxchar); | |
| } | |
| /* allocate the resulting string */ | |
| if (_PyUnicodeWriter_Prepare(writer, total, maxchar) == -1) | |
| goto done; | |
| /* Write into that space. First the padding. */ | |
| result = fill_padding(writer, len, format->fill_char, lpad, rpad); | |
| if (result == -1) | |
| goto done; | |
| /* Then the source string. */ | |
| if (len) { | |
| _PyUnicode_FastCopyCharacters(writer->buffer, writer->pos, | |
| value, 0, len); | |
| } | |
| writer->pos += (len + rpad); | |
| result = 0; | |
| done: | |
| return result; | |
| } | |
| /************************************************************************/ | |
| /*********** long formatting ********************************************/ | |
| /************************************************************************/ | |
| static int | |
| format_long_internal(PyObject *value, const InternalFormatSpec *format, | |
| _PyUnicodeWriter *writer) | |
| { | |
| int result = -1; | |
| Py_UCS4 maxchar = 127; | |
| PyObject *tmp = NULL; | |
| Py_ssize_t inumeric_chars; | |
| Py_UCS4 sign_char = '\0'; | |
| Py_ssize_t n_digits; /* count of digits need from the computed | |
| string */ | |
| Py_ssize_t n_remainder = 0; /* Used only for 'c' formatting, which | |
| produces non-digits */ | |
| Py_ssize_t n_prefix = 0; /* Count of prefix chars, (e.g., '0x') */ | |
| Py_ssize_t n_total; | |
| Py_ssize_t prefix = 0; | |
| NumberFieldWidths spec; | |
| long x; | |
| /* Locale settings, either from the actual locale or | |
| from a hard-code pseudo-locale */ | |
| LocaleInfo locale = LocaleInfo_STATIC_INIT; | |
| /* no precision allowed on integers */ | |
| if (format->precision != -1) { | |
| PyErr_SetString(PyExc_ValueError, | |
| "Precision not allowed in integer format specifier"); | |
| goto done; | |
| } | |
| /* special case for character formatting */ | |
| if (format->type == 'c') { | |
| /* error to specify a sign */ | |
| if (format->sign != '\0') { | |
| PyErr_SetString(PyExc_ValueError, | |
| "Sign not allowed with integer" | |
| " format specifier 'c'"); | |
| goto done; | |
| } | |
| /* error to request alternate format */ | |
| if (format->alternate) { | |
| PyErr_SetString(PyExc_ValueError, | |
| "Alternate form (#) not allowed with integer" | |
| " format specifier 'c'"); | |
| goto done; | |
| } | |
| /* taken from unicodeobject.c formatchar() */ | |
| /* Integer input truncated to a character */ | |
| x = PyLong_AsLong(value); | |
| if (x == -1 && PyErr_Occurred()) | |
| goto done; | |
| if (x < 0 || x > 0x10ffff) { | |
| PyErr_SetString(PyExc_OverflowError, | |
| "%c arg not in range(0x110000)"); | |
| goto done; | |
| } | |
| tmp = PyUnicode_FromOrdinal(x); | |
| inumeric_chars = 0; | |
| n_digits = 1; | |
| maxchar = Py_MAX(maxchar, (Py_UCS4)x); | |
| /* As a sort-of hack, we tell calc_number_widths that we only | |
| have "remainder" characters. calc_number_widths thinks | |
| these are characters that don't get formatted, only copied | |
| into the output string. We do this for 'c' formatting, | |
| because the characters are likely to be non-digits. */ | |
| n_remainder = 1; | |
| } | |
| else { | |
| int base; | |
| int leading_chars_to_skip = 0; /* Number of characters added by | |
| PyNumber_ToBase that we want to | |
| skip over. */ | |
| /* Compute the base and how many characters will be added by | |
| PyNumber_ToBase */ | |
| switch (format->type) { | |
| case 'b': | |
| base = 2; | |
| leading_chars_to_skip = 2; /* 0b */ | |
| break; | |
| case 'o': | |
| base = 8; | |
| leading_chars_to_skip = 2; /* 0o */ | |
| break; | |
| case 'x': | |
| case 'X': | |
| base = 16; | |
| leading_chars_to_skip = 2; /* 0x */ | |
| break; | |
| default: /* shouldn't be needed, but stops a compiler warning */ | |
| case 'd': | |
| case 'n': | |
| base = 10; | |
| break; | |
| } | |
| if (format->sign != '+' && format->sign != ' ' | |
| && format->width == -1 | |
| && format->type != 'X' && format->type != 'n' | |
| && !format->thousands_separators | |
| && PyLong_CheckExact(value)) | |
| { | |
| /* Fast path */ | |
| return _PyLong_FormatWriter(writer, value, base, format->alternate); | |
| } | |
| /* The number of prefix chars is the same as the leading | |
| chars to skip */ | |
| if (format->alternate) | |
| n_prefix = leading_chars_to_skip; | |
| /* Do the hard part, converting to a string in a given base */ | |
| tmp = _PyLong_Format(value, base); | |
| if (tmp == NULL || PyUnicode_READY(tmp) == -1) | |
| goto done; | |
| inumeric_chars = 0; | |
| n_digits = PyUnicode_GET_LENGTH(tmp); | |
| prefix = inumeric_chars; | |
| /* Is a sign character present in the output? If so, remember it | |
| and skip it */ | |
| if (PyUnicode_READ_CHAR(tmp, inumeric_chars) == '-') { | |
| sign_char = '-'; | |
| ++prefix; | |
| ++leading_chars_to_skip; | |
| } | |
| /* Skip over the leading chars (0x, 0b, etc.) */ | |
| n_digits -= leading_chars_to_skip; | |
| inumeric_chars += leading_chars_to_skip; | |
| } | |
| /* Determine the grouping, separator, and decimal point, if any. */ | |
| if (get_locale_info(format->type == 'n' ? LT_CURRENT_LOCALE : | |
| format->thousands_separators, | |
| &locale) == -1) | |
| goto done; | |
| /* Calculate how much memory we'll need. */ | |
| n_total = calc_number_widths(&spec, n_prefix, sign_char, inumeric_chars, | |
| inumeric_chars + n_digits, n_remainder, 0, | |
| &locale, format, &maxchar); | |
| if (n_total == -1) { | |
| goto done; | |
| } | |
| /* Allocate the memory. */ | |
| if (_PyUnicodeWriter_Prepare(writer, n_total, maxchar) == -1) | |
| goto done; | |
| /* Populate the memory. */ | |
| result = fill_number(writer, &spec, | |
| tmp, inumeric_chars, | |
| tmp, prefix, format->fill_char, | |
| &locale, format->type == 'X'); | |
| done: | |
| Py_XDECREF(tmp); | |
| free_locale_info(&locale); | |
| return result; | |
| } | |
| /************************************************************************/ | |
| /*********** float formatting *******************************************/ | |
| /************************************************************************/ | |
| /* much of this is taken from unicodeobject.c */ | |
| static int | |
| format_float_internal(PyObject *value, | |
| const InternalFormatSpec *format, | |
| _PyUnicodeWriter *writer) | |
| { | |
| char *buf = NULL; /* buffer returned from PyOS_double_to_string */ | |
| Py_ssize_t n_digits; | |
| Py_ssize_t n_remainder; | |
| Py_ssize_t n_total; | |
| int has_decimal; | |
| double val; | |
| int precision, default_precision = 6; | |
| Py_UCS4 type = format->type; | |
| int add_pct = 0; | |
| Py_ssize_t index; | |
| NumberFieldWidths spec; | |
| int flags = 0; | |
| int result = -1; | |
| Py_UCS4 maxchar = 127; | |
| Py_UCS4 sign_char = '\0'; | |
| int float_type; /* Used to see if we have a nan, inf, or regular float. */ | |
| PyObject *unicode_tmp = NULL; | |
| /* Locale settings, either from the actual locale or | |
| from a hard-code pseudo-locale */ | |
| LocaleInfo locale = LocaleInfo_STATIC_INIT; | |
| if (format->precision > INT_MAX) { | |
| PyErr_SetString(PyExc_ValueError, "precision too big"); | |
| goto done; | |
| } | |
| precision = (int)format->precision; | |
| if (format->alternate) | |
| flags |= Py_DTSF_ALT; | |
| if (type == '\0') { | |
| /* Omitted type specifier. Behaves in the same way as repr(x) | |
| and str(x) if no precision is given, else like 'g', but with | |
| at least one digit after the decimal point. */ | |
| flags |= Py_DTSF_ADD_DOT_0; | |
| type = 'r'; | |
| default_precision = 0; | |
| } | |
| if (type == 'n') | |
| /* 'n' is the same as 'g', except for the locale used to | |
| format the result. We take care of that later. */ | |
| type = 'g'; | |
| val = PyFloat_AsDouble(value); | |
| if (val == -1.0 && PyErr_Occurred()) | |
| goto done; | |
| if (type == '%') { | |
| type = 'f'; | |
| val *= 100; | |
| add_pct = 1; | |
| } | |
| if (precision < 0) | |
| precision = default_precision; | |
| else if (type == 'r') | |
| type = 'g'; | |
| /* Cast "type", because if we're in unicode we need to pass an | |
| 8-bit char. This is safe, because we've restricted what "type" | |
| can be. */ | |
| buf = PyOS_double_to_string(val, (char)type, precision, flags, | |
| &float_type); | |
| if (buf == NULL) | |
| goto done; | |
| n_digits = strlen(buf); | |
| if (add_pct) { | |
| /* We know that buf has a trailing zero (since we just called | |
| strlen() on it), and we don't use that fact any more. So we | |
| can just write over the trailing zero. */ | |
| buf[n_digits] = '%'; | |
| n_digits += 1; | |
| } | |
| if (format->sign != '+' && format->sign != ' ' | |
| && format->width == -1 | |
| && format->type != 'n' | |
| && !format->thousands_separators) | |
| { | |
| /* Fast path */ | |
| result = _PyUnicodeWriter_WriteASCIIString(writer, buf, n_digits); | |
| PyMem_Free(buf); | |
| return result; | |
| } | |
| /* Since there is no unicode version of PyOS_double_to_string, | |
| just use the 8 bit version and then convert to unicode. */ | |
| unicode_tmp = _PyUnicode_FromASCII(buf, n_digits); | |
| PyMem_Free(buf); | |
| if (unicode_tmp == NULL) | |
| goto done; | |
| /* Is a sign character present in the output? If so, remember it | |
| and skip it */ | |
| index = 0; | |
| if (PyUnicode_READ_CHAR(unicode_tmp, index) == '-') { | |
| sign_char = '-'; | |
| ++index; | |
| --n_digits; | |
| } | |
| /* Determine if we have any "remainder" (after the digits, might include | |
| decimal or exponent or both (or neither)) */ | |
| parse_number(unicode_tmp, index, index + n_digits, &n_remainder, &has_decimal); | |
| /* Determine the grouping, separator, and decimal point, if any. */ | |
| if (get_locale_info(format->type == 'n' ? LT_CURRENT_LOCALE : | |
| format->thousands_separators, | |
| &locale) == -1) | |
| goto done; | |
| /* Calculate how much memory we'll need. */ | |
| n_total = calc_number_widths(&spec, 0, sign_char, index, | |
| index + n_digits, n_remainder, has_decimal, | |
| &locale, format, &maxchar); | |
| if (n_total == -1) { | |
| goto done; | |
| } | |
| /* Allocate the memory. */ | |
| if (_PyUnicodeWriter_Prepare(writer, n_total, maxchar) == -1) | |
| goto done; | |
| /* Populate the memory. */ | |
| result = fill_number(writer, &spec, | |
| unicode_tmp, index, | |
| NULL, 0, format->fill_char, | |
| &locale, 0); | |
| done: | |
| Py_XDECREF(unicode_tmp); | |
| free_locale_info(&locale); | |
| return result; | |
| } | |
| /************************************************************************/ | |
| /*********** complex formatting *****************************************/ | |
| /************************************************************************/ | |
| static int | |
| format_complex_internal(PyObject *value, | |
| const InternalFormatSpec *format, | |
| _PyUnicodeWriter *writer) | |
| { | |
| double re; | |
| double im; | |
| char *re_buf = NULL; /* buffer returned from PyOS_double_to_string */ | |
| char *im_buf = NULL; /* buffer returned from PyOS_double_to_string */ | |
| InternalFormatSpec tmp_format = *format; | |
| Py_ssize_t n_re_digits; | |
| Py_ssize_t n_im_digits; | |
| Py_ssize_t n_re_remainder; | |
| Py_ssize_t n_im_remainder; | |
| Py_ssize_t n_re_total; | |
| Py_ssize_t n_im_total; | |
| int re_has_decimal; | |
| int im_has_decimal; | |
| int precision, default_precision = 6; | |
| Py_UCS4 type = format->type; | |
| Py_ssize_t i_re; | |
| Py_ssize_t i_im; | |
| NumberFieldWidths re_spec; | |
| NumberFieldWidths im_spec; | |
| int flags = 0; | |
| int result = -1; | |
| Py_UCS4 maxchar = 127; | |
| enum PyUnicode_Kind rkind; | |
| void *rdata; | |
| Py_UCS4 re_sign_char = '\0'; | |
| Py_UCS4 im_sign_char = '\0'; | |
| int re_float_type; /* Used to see if we have a nan, inf, or regular float. */ | |
| int im_float_type; | |
| int add_parens = 0; | |
| int skip_re = 0; | |
| Py_ssize_t lpad; | |
| Py_ssize_t rpad; | |
| Py_ssize_t total; | |
| PyObject *re_unicode_tmp = NULL; | |
| PyObject *im_unicode_tmp = NULL; | |
| /* Locale settings, either from the actual locale or | |
| from a hard-code pseudo-locale */ | |
| LocaleInfo locale = LocaleInfo_STATIC_INIT; | |
| if (format->precision > INT_MAX) { | |
| PyErr_SetString(PyExc_ValueError, "precision too big"); | |
| goto done; | |
| } | |
| precision = (int)format->precision; | |
| /* Zero padding is not allowed. */ | |
| if (format->fill_char == '0') { | |
| PyErr_SetString(PyExc_ValueError, | |
| "Zero padding is not allowed in complex format " | |
| "specifier"); | |
| goto done; | |
| } | |
| /* Neither is '=' alignment . */ | |
| if (format->align == '=') { | |
| PyErr_SetString(PyExc_ValueError, | |
| "'=' alignment flag is not allowed in complex format " | |
| "specifier"); | |
| goto done; | |
| } | |
| re = PyComplex_RealAsDouble(value); | |
| if (re == -1.0 && PyErr_Occurred()) | |
| goto done; | |
| im = PyComplex_ImagAsDouble(value); | |
| if (im == -1.0 && PyErr_Occurred()) | |
| goto done; | |
| if (format->alternate) | |
| flags |= Py_DTSF_ALT; | |
| if (type == '\0') { | |
| /* Omitted type specifier. Should be like str(self). */ | |
| type = 'r'; | |
| default_precision = 0; | |
| if (re == 0.0 && copysign(1.0, re) == 1.0) | |
| skip_re = 1; | |
| else | |
| add_parens = 1; | |
| } | |
| if (type == 'n') | |
| /* 'n' is the same as 'g', except for the locale used to | |
| format the result. We take care of that later. */ | |
| type = 'g'; | |
| if (precision < 0) | |
| precision = default_precision; | |
| else if (type == 'r') | |
| type = 'g'; | |
| /* Cast "type", because if we're in unicode we need to pass an | |
| 8-bit char. This is safe, because we've restricted what "type" | |
| can be. */ | |
| re_buf = PyOS_double_to_string(re, (char)type, precision, flags, | |
| &re_float_type); | |
| if (re_buf == NULL) | |
| goto done; | |
| im_buf = PyOS_double_to_string(im, (char)type, precision, flags, | |
| &im_float_type); | |
| if (im_buf == NULL) | |
| goto done; | |
| n_re_digits = strlen(re_buf); | |
| n_im_digits = strlen(im_buf); | |
| /* Since there is no unicode version of PyOS_double_to_string, | |
| just use the 8 bit version and then convert to unicode. */ | |
| re_unicode_tmp = _PyUnicode_FromASCII(re_buf, n_re_digits); | |
| if (re_unicode_tmp == NULL) | |
| goto done; | |
| i_re = 0; | |
| im_unicode_tmp = _PyUnicode_FromASCII(im_buf, n_im_digits); | |
| if (im_unicode_tmp == NULL) | |
| goto done; | |
| i_im = 0; | |
| /* Is a sign character present in the output? If so, remember it | |
| and skip it */ | |
| if (PyUnicode_READ_CHAR(re_unicode_tmp, i_re) == '-') { | |
| re_sign_char = '-'; | |
| ++i_re; | |
| --n_re_digits; | |
| } | |
| if (PyUnicode_READ_CHAR(im_unicode_tmp, i_im) == '-') { | |
| im_sign_char = '-'; | |
| ++i_im; | |
| --n_im_digits; | |
| } | |
| /* Determine if we have any "remainder" (after the digits, might include | |
| decimal or exponent or both (or neither)) */ | |
| parse_number(re_unicode_tmp, i_re, i_re + n_re_digits, | |
| &n_re_remainder, &re_has_decimal); | |
| parse_number(im_unicode_tmp, i_im, i_im + n_im_digits, | |
| &n_im_remainder, &im_has_decimal); | |
| /* Determine the grouping, separator, and decimal point, if any. */ | |
| if (get_locale_info(format->type == 'n' ? LT_CURRENT_LOCALE : | |
| format->thousands_separators, | |
| &locale) == -1) | |
| goto done; | |
| /* Turn off any padding. We'll do it later after we've composed | |
| the numbers without padding. */ | |
| tmp_format.fill_char = '\0'; | |
| tmp_format.align = '<'; | |
| tmp_format.width = -1; | |
| /* Calculate how much memory we'll need. */ | |
| n_re_total = calc_number_widths(&re_spec, 0, re_sign_char, | |
| i_re, i_re + n_re_digits, n_re_remainder, | |
| re_has_decimal, &locale, &tmp_format, | |
| &maxchar); | |
| if (n_re_total == -1) { | |
| goto done; | |
| } | |
| /* Same formatting, but always include a sign, unless the real part is | |
| * going to be omitted, in which case we use whatever sign convention was | |
| * requested by the original format. */ | |
| if (!skip_re) | |
| tmp_format.sign = '+'; | |
| n_im_total = calc_number_widths(&im_spec, 0, im_sign_char, | |
| i_im, i_im + n_im_digits, n_im_remainder, | |
| im_has_decimal, &locale, &tmp_format, | |
| &maxchar); | |
| if (n_im_total == -1) { | |
| goto done; | |
| } | |
| if (skip_re) | |
| n_re_total = 0; | |
| /* Add 1 for the 'j', and optionally 2 for parens. */ | |
| calc_padding(n_re_total + n_im_total + 1 + add_parens * 2, | |
| format->width, format->align, &lpad, &rpad, &total); | |
| if (lpad || rpad) | |
| maxchar = Py_MAX(maxchar, format->fill_char); | |
| if (_PyUnicodeWriter_Prepare(writer, total, maxchar) == -1) | |
| goto done; | |
| rkind = writer->kind; | |
| rdata = writer->data; | |
| /* Populate the memory. First, the padding. */ | |
| result = fill_padding(writer, | |
| n_re_total + n_im_total + 1 + add_parens * 2, | |
| format->fill_char, lpad, rpad); | |
| if (result == -1) | |
| goto done; | |
| if (add_parens) { | |
| PyUnicode_WRITE(rkind, rdata, writer->pos, '('); | |
| writer->pos++; | |
| } | |
| if (!skip_re) { | |
| result = fill_number(writer, &re_spec, | |
| re_unicode_tmp, i_re, | |
| NULL, 0, | |
| 0, | |
| &locale, 0); | |
| if (result == -1) | |
| goto done; | |
| } | |
| result = fill_number(writer, &im_spec, | |
| im_unicode_tmp, i_im, | |
| NULL, 0, | |
| 0, | |
| &locale, 0); | |
| if (result == -1) | |
| goto done; | |
| PyUnicode_WRITE(rkind, rdata, writer->pos, 'j'); | |
| writer->pos++; | |
| if (add_parens) { | |
| PyUnicode_WRITE(rkind, rdata, writer->pos, ')'); | |
| writer->pos++; | |
| } | |
| writer->pos += rpad; | |
| done: | |
| PyMem_Free(re_buf); | |
| PyMem_Free(im_buf); | |
| Py_XDECREF(re_unicode_tmp); | |
| Py_XDECREF(im_unicode_tmp); | |
| free_locale_info(&locale); | |
| return result; | |
| } | |
| /************************************************************************/ | |
| /*********** built in formatters ****************************************/ | |
| /************************************************************************/ | |
| static int | |
| format_obj(PyObject *obj, _PyUnicodeWriter *writer) | |
| { | |
| PyObject *str; | |
| int err; | |
| str = PyObject_Str(obj); | |
| if (str == NULL) | |
| return -1; | |
| err = _PyUnicodeWriter_WriteStr(writer, str); | |
| Py_DECREF(str); | |
| return err; | |
| } | |
| int | |
| _PyUnicode_FormatAdvancedWriter(_PyUnicodeWriter *writer, | |
| PyObject *obj, | |
| PyObject *format_spec, | |
| Py_ssize_t start, Py_ssize_t end) | |
| { | |
| InternalFormatSpec format; | |
| assert(PyUnicode_Check(obj)); | |
| /* check for the special case of zero length format spec, make | |
| it equivalent to str(obj) */ | |
| if (start == end) { | |
| if (PyUnicode_CheckExact(obj)) | |
| return _PyUnicodeWriter_WriteStr(writer, obj); | |
| else | |
| return format_obj(obj, writer); | |
| } | |
| /* parse the format_spec */ | |
| if (!parse_internal_render_format_spec(format_spec, start, end, | |
| &format, 's', '<')) | |
| return -1; | |
| /* type conversion? */ | |
| switch (format.type) { | |
| case 's': | |
| /* no type conversion needed, already a string. do the formatting */ | |
| return format_string_internal(obj, &format, writer); | |
| default: | |
| /* unknown */ | |
| unknown_presentation_type(format.type, Py_TYPE(obj)->tp_name); | |
| return -1; | |
| } | |
| } | |
| int | |
| _PyLong_FormatAdvancedWriter(_PyUnicodeWriter *writer, | |
| PyObject *obj, | |
| PyObject *format_spec, | |
| Py_ssize_t start, Py_ssize_t end) | |
| { | |
| PyObject *tmp = NULL; | |
| InternalFormatSpec format; | |
| int result = -1; | |
| /* check for the special case of zero length format spec, make | |
| it equivalent to str(obj) */ | |
| if (start == end) { | |
| if (PyLong_CheckExact(obj)) | |
| return _PyLong_FormatWriter(writer, obj, 10, 0); | |
| else | |
| return format_obj(obj, writer); | |
| } | |
| /* parse the format_spec */ | |
| if (!parse_internal_render_format_spec(format_spec, start, end, | |
| &format, 'd', '>')) | |
| goto done; | |
| /* type conversion? */ | |
| switch (format.type) { | |
| case 'b': | |
| case 'c': | |
| case 'd': | |
| case 'o': | |
| case 'x': | |
| case 'X': | |
| case 'n': | |
| /* no type conversion needed, already an int. do the formatting */ | |
| result = format_long_internal(obj, &format, writer); | |
| break; | |
| case 'e': | |
| case 'E': | |
| case 'f': | |
| case 'F': | |
| case 'g': | |
| case 'G': | |
| case '%': | |
| /* convert to float */ | |
| tmp = PyNumber_Float(obj); | |
| if (tmp == NULL) | |
| goto done; | |
| result = format_float_internal(tmp, &format, writer); | |
| break; | |
| default: | |
| /* unknown */ | |
| unknown_presentation_type(format.type, Py_TYPE(obj)->tp_name); | |
| goto done; | |
| } | |
| done: | |
| Py_XDECREF(tmp); | |
| return result; | |
| } | |
| int | |
| _PyFloat_FormatAdvancedWriter(_PyUnicodeWriter *writer, | |
| PyObject *obj, | |
| PyObject *format_spec, | |
| Py_ssize_t start, Py_ssize_t end) | |
| { | |
| InternalFormatSpec format; | |
| /* check for the special case of zero length format spec, make | |
| it equivalent to str(obj) */ | |
| if (start == end) | |
| return format_obj(obj, writer); | |
| /* parse the format_spec */ | |
| if (!parse_internal_render_format_spec(format_spec, start, end, | |
| &format, '\0', '>')) | |
| return -1; | |
| /* type conversion? */ | |
| switch (format.type) { | |
| case '\0': /* No format code: like 'g', but with at least one decimal. */ | |
| case 'e': | |
| case 'E': | |
| case 'f': | |
| case 'F': | |
| case 'g': | |
| case 'G': | |
| case 'n': | |
| case '%': | |
| /* no conversion, already a float. do the formatting */ | |
| return format_float_internal(obj, &format, writer); | |
| default: | |
| /* unknown */ | |
| unknown_presentation_type(format.type, Py_TYPE(obj)->tp_name); | |
| return -1; | |
| } | |
| } | |
| int | |
| _PyComplex_FormatAdvancedWriter(_PyUnicodeWriter *writer, | |
| PyObject *obj, | |
| PyObject *format_spec, | |
| Py_ssize_t start, Py_ssize_t end) | |
| { | |
| InternalFormatSpec format; | |
| /* check for the special case of zero length format spec, make | |
| it equivalent to str(obj) */ | |
| if (start == end) | |
| return format_obj(obj, writer); | |
| /* parse the format_spec */ | |
| if (!parse_internal_render_format_spec(format_spec, start, end, | |
| &format, '\0', '>')) | |
| return -1; | |
| /* type conversion? */ | |
| switch (format.type) { | |
| case '\0': /* No format code: like 'g', but with at least one decimal. */ | |
| case 'e': | |
| case 'E': | |
| case 'f': | |
| case 'F': | |
| case 'g': | |
| case 'G': | |
| case 'n': | |
| /* no conversion, already a complex. do the formatting */ | |
| return format_complex_internal(obj, &format, writer); | |
| default: | |
| /* unknown */ | |
| unknown_presentation_type(format.type, Py_TYPE(obj)->tp_name); | |
| return -1; | |
| } | |
| } |