| 27,6 → 27,11 |
|---|
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * @file print.c |
| * @brief Printing functions. |
| */ |
| |
| #include <unistd.h> |
| #include <stdio.h> |
| #include <io/printf_core.h> |
| 33,20 → 38,22 |
|---|
| #include <ctype.h> |
| #include <string.h> |
| |
| #define __PRINTF_FLAG_PREFIX 0x00000001 /* show prefixes 0x or 0*/ |
| #define __PRINTF_FLAG_SIGNED 0x00000002 /* signed / unsigned number */ |
| #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /* print leading zeroes */ |
| #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /* align to left */ |
| #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /* always show + sign */ |
| #define __PRINTF_FLAG_SPACESIGN 0x00000040 /* print space instead of plus */ |
| #define __PRINTF_FLAG_BIGCHARS 0x00000080 /* show big characters */ |
| #define __PRINTF_FLAG_NEGATIVE 0x00000100 /* number has - sign */ |
| #define __PRINTF_FLAG_PREFIX 0x00000001 /**< show prefixes 0x or 0*/ |
| #define __PRINTF_FLAG_SIGNED 0x00000002 /**< signed / unsigned number */ |
| #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /**< print leading zeroes */ |
| #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /**< align to left */ |
| #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /**< always show + sign */ |
| #define __PRINTF_FLAG_SPACESIGN 0x00000040 /**< print space instead of plus */ |
| #define __PRINTF_FLAG_BIGCHARS 0x00000080 /**< show big characters */ |
| #define __PRINTF_FLAG_NEGATIVE 0x00000100 /**< number has - sign */ |
| |
| #define PRINT_NUMBER_BUFFER_SIZE (64+5) /* Buffer big enought for 64 bit number |
| #define PRINT_NUMBER_BUFFER_SIZE (64+5) /**< Buffer big enought for 64 bit number |
| * printed in base 2, sign, prefix and |
| * 0 to terminate string.. (last one is only for better testing |
| * end of buffer by zero-filling subroutine) |
| */ |
| /** Enumeration of possible arguments types. |
| */ |
| typedef enum { |
| PrintfQualifierByte = 0, |
| PrintfQualifierShort, |
| 57,8 → 64,8 |
|---|
| PrintfQualifierPointer |
| } qualifier_t; |
| |
| static char digits_small[] = "0123456789abcdef"; /* Small hexadecimal characters */ |
| static char digits_big[] = "0123456789ABCDEF"; /* Big hexadecimal characters */ |
| static char digits_small[] = "0123456789abcdef"; /**< Small hexadecimal characters */ |
| static char digits_big[] = "0123456789ABCDEF"; /**< Big hexadecimal characters */ |
| |
| /** Print count chars from buffer without adding newline |
| * @param buf Buffer with size at least count bytes - NULL pointer NOT allowed! |
| 349,81 → 356,91 |
|---|
| } |
| |
| |
| /** General formatted text print |
| /** Print formatted string. |
| * |
| * Print string formatted according the fmt parameter |
| * and variant arguments. Each formatting directive |
| * Print string formatted according to the fmt parameter |
| * and variadic arguments. Each formatting directive |
| * must have the following form: |
| * % [ flags ] [ width ] [ .precision ] [ type ] conversion |
| * |
| * \% [ FLAGS ] [ WIDTH ] [ .PRECISION ] [ TYPE ] CONVERSION |
| * |
| * FLAGS: |
| * # Force to print prefix. For conversion %o is prefix 0, for %x and %X are prefixes 0x and 0X and for conversion %b is prefix 0b. |
| * - Align to left. |
| * + Print positive sign just as negative. |
| * (space) If printed number is positive and '+' flag is not set, print space in place of sign. |
| * 0 Print 0 as padding instead of spaces. Zeroes are placed between sign and the rest of number. This flag is ignored if '-' flag is specified. |
| * FLAGS:@n |
| * - "#" Force to print prefix. |
| * For conversion \%o the prefix is 0, for %x and \%X prefixes are 0x and 0X |
| * and for conversion \%b the prefix is 0b. |
| * |
| * - "-" Align to left. |
| * |
| * - "+" Print positive sign just as negative. |
| * |
| * - " " If the printed number is positive and "+" flag is not set, print space in |
| * place of sign. |
| * |
| * - "0" Print 0 as padding instead of spaces. Zeroes are placed between sign and the |
| * rest of the number. This flag is ignored if "-" flag is specified. |
| * |
| * WIDTH: |
| * Specify minimal width of printed argument. If it is bigger, width is ignored. |
| * If width is specified with a '*' character instead of number, width is taken from parameter list. |
| * Int parameter expected before parameter for processed conversion specification. |
| * If this value is negative it is taken its absolute value and the '-' flag is set. |
| * WIDTH:@n |
| * - Specify minimal width of printed argument. If it is bigger, width is ignored. |
| * If width is specified with a "*" character instead of number, width is taken from |
| * parameter list. And integer parameter is expected before parameter for processed |
| * conversion specification. If this value is negative its absolute value is taken |
| * and the "-" flag is set. |
| * |
| * PRECISION: |
| * Value precision. For numbers it specifies minimum valid numbers. |
| * PRECISION:@n |
| * - Value precision. For numbers it specifies minimum valid numbers. |
| * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
| * Strings with more than precision characters are cutted of. |
| * Just as width could be '*' used instead a number. |
| * A int value is then expected in parameters. When both width and precision are specified using '*', |
| * first parameter is used for width and second one for precision. |
| * Strings with more than precision characters are cut off. |
| * Just as with width, an "*" can be used used instead of a number. |
| * An integer value is then expected in parameters. When both width and precision |
| * are specified using "*", the first parameter is used for width and the second one |
| * for precision. |
| * |
| * TYPE: |
| * hh signed or unsigned char |
| * h signed or usigned short |
| * signed or usigned int (default value) |
| * l signed or usigned long int |
| * ll signed or usigned long long int |
| * z size_t type |
| * TYPE:@n |
| * - "hh" Signed or unsigned char.@n |
| * - "h" Signed or usigned short.@n |
| * - "" Signed or usigned int (default value).@n |
| * - "l" Signed or usigned long int.@n |
| * - "ll" Signed or usigned long long int.@n |
| * - "z" Type size_t.@n |
| * |
| * |
| * CONVERSIONS: |
| * |
| * % Print percentage character. |
| * CONVERSION:@n |
| * - % Print percentile character itself. |
| * |
| * c Print single character. |
| * - c Print single character. |
| * |
| * s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
| * - s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
| * |
| * P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
| * ( as with %#X or %#x for 32bit or %#X / %#x for 64bit long pointers) |
| * - P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
| * (as with \%#X or \%#x for 32bit or \%#X / \%#x for 64bit long pointers). |
| * |
| * b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
| * - b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
| * |
| * o Print value as unsigned octal number. Prefix is not printed by default. |
| * - o Print value as unsigned octal number. Prefix is not printed by default. |
| * |
| * d,i Print signed decimal number. There is no difference between d and i conversion. |
| * - d,i Print signed decimal number. There is no difference between d and i conversion. |
| * |
| * u Print unsigned decimal number. |
| * - u Print unsigned decimal number. |
| * |
| * X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
| * - X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
| * |
| * All other characters from fmt except the formatting directives |
| * are printed in verbatim. |
| * |
| * @param fmt Formatting NULL terminated string. |
| * @return count of printed characters or negative value on fail. |
| * @return Number of printed characters or negative value on failure. |
| */ |
| int printf_core(const char *fmt, struct printf_spec *ps, va_list ap) |
| { |
| int i = 0, j = 0; /* i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
| int i = 0, j = 0; /**< i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
| int end; |
| int counter; /* counter of printed characters */ |
| int retval; /* used to store return values from called functions */ |
| int counter; /**< counter of printed characters */ |
| int retval; /**< used to store return values from called functions */ |
| char c; |
| qualifier_t qualifier; /* type of argument */ |
| int base; /* base in which will be parameter (numbers only) printed */ |
| uint64_t number; /* argument value */ |
| size_t size; /* byte size of integer parameter */ |
| qualifier_t qualifier; /**< type of argument */ |
| int base; /**< base in which will be parameter (numbers only) printed */ |
| uint64_t number; /**< argument value */ |
| size_t size; /**< byte size of integer parameter */ |
| int width, precision; |
| uint64_t flags; |
| |