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Roland McGrath 1994-03-04 05:36:26 +00:00
parent 5d3189c952
commit 227cffec2b
1 changed files with 18 additions and 7 deletions
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25
function.c
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@ -1,5 +1,5 @@
/* Variable function expansion for GNU Make. /* Variable function expansion for GNU Make.
Copyright (C) 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. Copyright (C) 1988, 1989, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
This file is part of GNU Make. This file is part of GNU Make.
GNU Make is free software; you can redistribute it and/or modify GNU Make is free software; you can redistribute it and/or modify
@ -51,8 +51,23 @@ subst_expand (o, text, subst, replace, slen, rlen, by_word, suffix_only)
return o; return o;
} }
while ((p = sindex (t, 0, subst, slen)) != 0) do
{ {
if ((by_word | suffix_only) && slen == 0)
/* When matching by words, the empty string should match
the end of each word, rather than the end of the whole text. */
p = end_of_token (next_token (t));
else
{
p = sindex (t, 0, subst, slen);
if (p == 0)
{
/* No more matches. Output everything left on the end. */
o = variable_buffer_output (o, t, strlen (t));
return o;
}
}
/* Output everything before this occurrence of the string to replace. */ /* Output everything before this occurrence of the string to replace. */
if (p > t) if (p > t)
o = variable_buffer_output (o, t, p - t); o = variable_buffer_output (o, t, p - t);
@ -73,11 +88,7 @@ subst_expand (o, text, subst, replace, slen, rlen, by_word, suffix_only)
/* Advance T past the string to be replaced. */ /* Advance T past the string to be replaced. */
t = p + slen; t = p + slen;
} } while (*t != '\0');
/* Output everything left on the end. */
if (*t != '\0')
o = variable_buffer_output (o, t, strlen (t));
return o; return o;
} }