segdata.h File Reference

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Data Structures
struct	SEG

Typedefs
typedef struct SEG	SEG

Functions
int	significant_digits (const char *s)
int	seg_yylex (void)
void	seg_yyerror (SEG *result, const char *message) pg_attribute_noreturn()
void	seg_scanner_init (const char *str)
void	seg_scanner_finish (void)
int	seg_yyparse (SEG *result)

Typedef Documentation

SEG

typedef struct SEG SEG

Function Documentation

seg_scanner_finish()

void seg_scanner_finish

(

void

)

Referenced by seg_in().

seg_scanner_init()

void seg_scanner_init

(

const char *

str

)

Referenced by seg_in().

seg_yyerror()

void seg_yyerror	(	SEG *	result,
		const char *	message
	)

Referenced by seg_in().

seg_yylex()

int seg_yylex

(

void

)

seg_yyparse()

int seg_yyparse

(

SEG *

result

)

Referenced by seg_in().

significant_digits()

int significant_digits

(

const char *

s

)

Definition at line 1060 of file seg.c.

{
    const char *p = s;
    int         n,
                c,
                zeroes;
 
    zeroes = 1;
    /* skip leading zeroes and sign */
    for (c = *p; (c == '0' || c == '+' || c == '-') && c != 0; c = *(++p));
 
    /* skip decimal point and following zeroes */
    for (c = *p; (c == '0' || c == '.') && c != 0; c = *(++p))
    {
        if (c != '.')
            zeroes++;
    }
 
    /* count significant digits (n) */
    for (c = *p, n = 0; c != 0; c = *(++p))
    {
        if (!((c >= '0' && c <= '9') || (c == '.')))
            break;
        if (c != '.')
            n++;
    }
 
    if (!n)
        return zeroes;
 
    return n;
}