src/usr.bin/m4/gnum4.c - diff

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Diff for /src/usr.bin/m4/gnum4.c between version 1.13 and 1.14

version 1.13, 2001/09/27 12:35:20

version 1.14, 2001/09/28 00:46:02

Line 207

static void do_regexp __P((const char *, regex_t *, const char *, regmatch_t *));

static void add_sub __P((int, const char *, regex_t *, regmatch_t *));

static void add_replace __P((const char *, regex_t *, const char *, regmatch_t *));

#define addconstantstring(s) addchars((s), sizeof(s)-1)

static void

addchars(c, n)

Line 419

Line 420

{

/* This could use strcspn for speed... */

while (*p != '\0') {

if (*p == '\\' && (p[1] == '(' || p[1] == ')')) {

if (*p == '\\') {

addchar(p[1]);

switch(p[1]) {

case '(':

case ')':

case '|':

addchar(p[1]);

break;

case 'w':

addconstantstring("[_a-zA-Z0-9]");

break;

case 'W':

addconstantstring("[^_a-zA-Z0-9]");

break;

case '<':

addconstantstring("[[:<:]]");

break;

case '>':

addconstantstring("[[:>:]]");

break;

default:

addchars(p, 2);

break;

}

p+=2;

continue;

}

if (*p == '(' || *p == ')')

if (*p == '(' || *p == ')' || *p == '|')

addchar('\\');

addchar(*p);