src/usr.bin/yacc/reader.c - diff

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Diff for /src/usr.bin/yacc/reader.c between version 1.25 and 1.26

version 1.25, 2014/01/08 22:55:59

version 1.26, 2014/01/10 23:01:29

Line 75

void copy_ident(void);

void copy_text(void);

void copy_union(void);

int hexval(int);

bucket * get_literal(void);

int is_reserved(char *);

bucket * get_name(void);

Line 653

Line 652

}

int

hexval(int c)

{

if (c >= '0' && c <= '9')

return (c - '0');

if (c >= 'A' && c <= 'F')

return (c - 'A' + 10);

if (c >= 'a' && c <= 'f')

return (c - 'a' + 10);

return (-1);

}

bucket *

get_literal(void)

{

Line 688

Line 674

if (c == '\\')

{

char *c_cptr = cptr - 1;

unsigned long ulval;

c = (unsigned char)*cptr++;

switch (c)

Line 699

Line 686

case '0': case '1': case '2': case '3':

case '4': case '5': case '6': case '7':

n = c - '0';

ulval = strtoul(cptr - 1, &s, 8);

c = (unsigned char)*cptr;

if (s == cptr - 1 || ulval > MAXCHAR) illegal_character(c_cptr);

if (IS_OCTAL(c))

c = (int)ulval;

{

cptr = s;

n = (n << 3) + (c - '0');

c = (unsigned char)*++cptr;

if (IS_OCTAL(c))

{

n = (n << 3) + (c - '0');

++cptr;

}

if (n > MAXCHAR) illegal_character(c_cptr);

c = n;

break;

case 'x':

c = (unsigned char)*cptr++;

ulval = strtoul(cptr, &s, 16);

n = hexval(c);

if (s == cptr || ulval > MAXCHAR) illegal_character(c_cptr);

if (n < 0 || n >= 16)

c = (int)ulval;

illegal_character(c_cptr);

cptr = s;

for (;;)

break;

{

c = (unsigned char)*cptr;

i = hexval(c);

if (i < 0 || i >= 16) break;

++cptr;

n = (n << 4) + i;

if (n > MAXCHAR) illegal_character(c_cptr);

}

c = n;

break;

case 'a': c = 7; break;

case 'b': c = '\b'; break;