X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fformat.h;h=4cde16b17a0b1352356f6b522c602bc18150b70e;hb=d26105c398be227dc38668ce3e742c31adef15f7;hp=568dd3d38537fe76e3e58d226e1d5e13f39c16a2;hpb=2b0538e3901bfc1301729ab5b84e4d3e05ee4ccc;p=pspp diff --git a/src/data/format.h b/src/data/format.h index 568dd3d385..4cde16b17a 100644 --- a/src/data/format.h +++ b/src/data/format.h @@ -1,5 +1,5 @@ /* PSPP - a program for statistical analysis. - Copyright (C) 1997-9, 2000, 2006, 2010 Free Software Foundation, Inc. + Copyright (C) 1997-9, 2000, 2006, 2010, 2011, 2012 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -20,8 +20,18 @@ /* Display format types. */ #include -#include -#include +#include +#include "data/val-type.h" +#include "libpspp/str.h" + +struct fmt_settings; + +/* How a format is going to be used. */ +enum fmt_use + { + FMT_FOR_INPUT, /* For parsing data input, e.g. data_in(). */ + FMT_FOR_OUTPUT /* For formatting data output, e.g. data_out(). */ + }; /* Format type categories. @@ -46,7 +56,7 @@ enum fmt_category }; /* Format type. */ -enum fmt_type +enum ATTRIBUTE ((packed)) fmt_type { #define FMT(NAME, METHOD, IMIN, OMIN, IO, CATEGORY) FMT_##NAME, #include "format.def" @@ -65,8 +75,8 @@ enum fmt_type struct fmt_spec { enum fmt_type type; /* One of FMT_*. */ - int w; /* Width. */ - int d; /* Number of implied decimal places. */ + uint8_t d; /* Number of decimal places. */ + uint16_t w; /* Width. */ }; /* Maximum width of any numeric format. */ @@ -75,11 +85,12 @@ struct fmt_spec /* Constructing formats. */ struct fmt_spec fmt_for_input (enum fmt_type, int w, int d) PURE_FUNCTION; struct fmt_spec fmt_for_output (enum fmt_type, int w, int d) PURE_FUNCTION; -struct fmt_spec fmt_for_output_from_input (const struct fmt_spec *); +struct fmt_spec fmt_for_output_from_input (const struct fmt_spec *, + const struct fmt_settings *); struct fmt_spec fmt_default_for_width (int width); /* Verifying formats. */ -bool fmt_check (const struct fmt_spec *, bool for_input); +bool fmt_check (const struct fmt_spec *, enum fmt_use); bool fmt_check_input (const struct fmt_spec *); bool fmt_check_output (const struct fmt_spec *); bool fmt_check_type_compat (const struct fmt_spec *, enum val_type); @@ -89,12 +100,15 @@ bool fmt_check_width_compat (const struct fmt_spec *, int var_width); int fmt_var_width (const struct fmt_spec *); char *fmt_to_string (const struct fmt_spec *, char s[FMT_STRING_LEN_MAX + 1]); bool fmt_equal (const struct fmt_spec *, const struct fmt_spec *); -void fmt_resize (struct fmt_spec *, int new_width); +bool fmt_resize (struct fmt_spec *, int new_width); -void fmt_fix (struct fmt_spec *, bool for_input); +void fmt_fix (struct fmt_spec *, enum fmt_use); void fmt_fix_input (struct fmt_spec *); void fmt_fix_output (struct fmt_spec *); +void fmt_change_width (struct fmt_spec *, int width, enum fmt_use); +void fmt_change_decimals (struct fmt_spec *, int decimals, enum fmt_use); + /* Format types. */ bool is_fmt_type (enum fmt_type); @@ -103,9 +117,9 @@ bool fmt_from_name (const char *name, enum fmt_type *); bool fmt_takes_decimals (enum fmt_type) PURE_FUNCTION; -int fmt_min_width (enum fmt_type, bool for_input) PURE_FUNCTION; -int fmt_max_width (enum fmt_type, bool for_input) PURE_FUNCTION; -int fmt_max_decimals (enum fmt_type, int width, bool for_input) PURE_FUNCTION; +int fmt_min_width (enum fmt_type, enum fmt_use) PURE_FUNCTION; +int fmt_max_width (enum fmt_type, enum fmt_use) PURE_FUNCTION; +int fmt_max_decimals (enum fmt_type, int width, enum fmt_use) PURE_FUNCTION; int fmt_min_input_width (enum fmt_type) PURE_FUNCTION; int fmt_max_input_width (enum fmt_type) PURE_FUNCTION; int fmt_max_input_decimals (enum fmt_type, int width) PURE_FUNCTION; @@ -123,40 +137,74 @@ bool fmt_usable_for_input (enum fmt_type) PURE_FUNCTION; int fmt_to_io (enum fmt_type) PURE_FUNCTION; bool fmt_from_io (int io, enum fmt_type *); +bool fmt_from_u32 (uint32_t, int var_width, bool loose, struct fmt_spec *); -const char *fmt_date_template (enum fmt_type) PURE_FUNCTION; +const char *fmt_date_template (enum fmt_type, int width) PURE_FUNCTION; +const char *fmt_gui_name (enum fmt_type); -/* Format settings. - - A fmt_settings is really just a collection of one "struct fmt_number_style" - for each format type. */ -struct fmt_settings *fmt_settings_create (void); -void fmt_settings_destroy (struct fmt_settings *); -struct fmt_settings *fmt_settings_clone (const struct fmt_settings *); - -void fmt_settings_set_decimal (struct fmt_settings *, char); +/* A prefix or suffix for a numeric output format. */ +struct fmt_affix + { + char *s; /* String contents of affix, in UTF-8. */ + int width; /* Display width in columns (see wcwidth()). */ + }; -const struct fmt_number_style *fmt_settings_get_style ( - const struct fmt_settings *, enum fmt_type); -void fmt_settings_set_style (struct fmt_settings *, enum fmt_type, - char decimal, char grouping, - const char *neg_prefix, const char *prefix, - const char *suffix, const char *neg_suffix); - -/* A numeric output style. */ +/* A numeric output style. This can express the basic numeric formats (in the + FMT_CAT_BASIC category) and custom currency formats (FMT_CCx). */ struct fmt_number_style { - struct substring neg_prefix; /* Negative prefix. */ - struct substring prefix; /* Prefix. */ - struct substring suffix; /* Suffix. */ - struct substring neg_suffix; /* Negative suffix. */ - char decimal; /* Decimal point: '.' or ','. */ - char grouping; /* Grouping character: ',', '.', or 0. */ + struct fmt_affix neg_prefix; /* Negative prefix. */ + struct fmt_affix prefix; /* Prefix. */ + struct fmt_affix suffix; /* Suffix. */ + struct fmt_affix neg_suffix; /* Negative suffix. */ + char decimal; /* Decimal point: '.' or ','. */ + char grouping; /* Grouping character: ',', '.', or 0. */ + + /* A fmt_affix may require more bytes than its display width; for example, + U+00A5 (Â¥) is 2 bytes in UTF-8 but occupies only one display column. + This member is the sum of the number of bytes required by all of the + fmt_affix members in this struct, minus their display widths. Thus, it + can be used to size memory allocations: for example, the formatted + result of CCA20.5 requires no more than (20 + extra_bytes) bytes in + UTF-8. */ + int extra_bytes; }; +struct fmt_number_style *fmt_number_style_from_string (const char *); +struct fmt_number_style *fmt_number_style_clone ( + const struct fmt_number_style *); +void fmt_number_style_destroy (struct fmt_number_style *); + +char *fmt_number_style_to_string (const struct fmt_number_style *); + int fmt_affix_width (const struct fmt_number_style *); int fmt_neg_affix_width (const struct fmt_number_style *); + +/* Number of custom currency styles. */ +#define FMT_N_CCS 5 /* FMT_CCA through FMT_CCE. */ + +struct fmt_settings + { + int epoch; /* 0 for default epoch. */ + char decimal; /* '.' or ','. */ + struct fmt_number_style *ccs[FMT_N_CCS]; /* CCA through CCE. */ + }; +#define FMT_SETTINGS_INIT { .decimal = '.' } +void fmt_settings_init (struct fmt_settings *); +void fmt_settings_uninit (struct fmt_settings *); +struct fmt_settings fmt_settings_copy (const struct fmt_settings *); + +const struct fmt_number_style *fmt_settings_get_style ( + const struct fmt_settings *, enum fmt_type); +int fmt_settings_get_epoch (const struct fmt_settings *); + +void fmt_settings_set_cc (struct fmt_settings *, enum fmt_type, + struct fmt_number_style *); + extern const struct fmt_spec F_8_0 ; +extern const struct fmt_spec F_8_2 ; +extern const struct fmt_spec F_4_3 ; +extern const struct fmt_spec F_5_1 ; #endif /* data/format.h */