diff options
author | Eric Blake <ebb9@byu.net> | 2008-05-01 06:53:47 -0600 |
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committer | Eric Blake <ebb9@byu.net> | 2008-05-01 06:53:47 -0600 |
commit | c3e7dc183995ae374f6aedec21893b23196a5b39 (patch) | |
tree | 9be546e21b6a46a401b6910adde23ce0589e4426 | |
parent | e6db1ee757abb49a7e739dc70a34dc8a14562e87 (diff) | |
download | m4-c3e7dc183995ae374f6aedec21893b23196a5b39.tar.gz |
Fix regression in define from 2008-02-22.
* m4/m4module.h (m4_symbol_value_copy): Add parameter.
* m4/symtab.c (m4_symbol_value_copy): Support copying $@
back-references.
* m4/macro.c (expand_argument): Update callers.
* modules/m4.c (define, pushdef): Likewise.
* tests/builtins.at (define): Enhance test to catch this.
Signed-off-by: Eric Blake <ebb9@byu.net>
-rw-r--r-- | ChangeLog | 10 | ||||
-rw-r--r-- | m4/m4module.h | 2 | ||||
-rw-r--r-- | m4/macro.c | 2 | ||||
-rw-r--r-- | m4/symtab.c | 41 | ||||
-rw-r--r-- | modules/m4.c | 4 | ||||
-rw-r--r-- | tests/builtins.at | 10 |
6 files changed, 49 insertions, 20 deletions
@@ -1,3 +1,13 @@ +2008-05-01 Eric Blake <ebb9@byu.net> + + Fix regression in define from 2008-02-22. + * m4/m4module.h (m4_symbol_value_copy): Add parameter. + * m4/symtab.c (m4_symbol_value_copy): Support copying $@ + back-references. + * m4/macro.c (expand_argument): Update callers. + * modules/m4.c (define, pushdef): Likewise. + * tests/builtins.at (define): Enhance test to catch this. + 2008-04-21 Eric Blake <ebb9@byu.net> Simplify previous patch. diff --git a/m4/m4module.h b/m4/m4module.h index ced18d5f..5b5e01b2 100644 --- a/m4/m4module.h +++ b/m4/m4module.h @@ -312,7 +312,7 @@ extern bool m4_symbol_value_flatten_args (m4_symbol_value *); extern m4_symbol_value *m4_symbol_value_create (void); extern void m4_symbol_value_delete (m4_symbol_value *); -extern void m4_symbol_value_copy (m4_symbol_value *, +extern void m4_symbol_value_copy (m4 *, m4_symbol_value *, m4_symbol_value *); extern bool m4_is_symbol_value_text (m4_symbol_value *); extern bool m4_is_symbol_value_func (m4_symbol_value *); @@ -392,7 +392,7 @@ expand_argument (m4 *context, m4_obstack *obs, m4_symbol_value *argp, case M4_TOKEN_MACDEF: if (argp->type == M4_SYMBOL_VOID && obstack_object_size (obs) == 0) - m4_symbol_value_copy (argp, &token); + m4_symbol_value_copy (context, argp, &token); else argp->type = M4_SYMBOL_TEXT; break; diff --git a/m4/symtab.c b/m4/symtab.c index f4bb8554..69f2200a 100644 --- a/m4/symtab.c +++ b/m4/symtab.c @@ -406,7 +406,7 @@ arg_destroy_CB (m4_hash *hash, const void *name, void *arg, void *ignored) } void -m4_symbol_value_copy (m4_symbol_value *dest, m4_symbol_value *src) +m4_symbol_value_copy (m4 *context, m4_symbol_value *dest, m4_symbol_value *src) { m4_symbol_value *next; @@ -465,26 +465,35 @@ m4_symbol_value_copy (m4_symbol_value *dest, m4_symbol_value *src) case M4_SYMBOL_COMP: { m4__symbol_chain *chain = src->u.u_c.chain; - size_t len = 0; + size_t len; char *str; - char *p; + const m4_string_pair *quotes; + m4_obstack *obs = m4_arg_scratch (context); while (chain) { - /* TODO for now, only text links are supported. */ - assert (chain->type == M4__CHAIN_STR); - len += chain->u.u_s.len; + switch (chain->type) + { + case M4__CHAIN_STR: + obstack_grow (obs, chain->u.u_s.str, chain->u.u_s.len); + break; + case M4__CHAIN_ARGV: + quotes = m4__quote_cache (M4SYNTAX, NULL, chain->quote_age, + chain->u.u_a.quotes); + m4__arg_print (context, obs, chain->u.u_a.argv, + chain->u.u_a.index, quotes, true, NULL, NULL, + NULL, false, false); + break; + default: + assert (!"m4_symbol_value_copy"); + abort (); + } chain = chain->next; } - p = str = xcharalloc (len + 1); - chain = src->u.u_c.chain; - while (chain) - { - memcpy (p, chain->u.u_s.str, chain->u.u_s.len); - p += chain->u.u_s.len; - chain = chain->next; - } - *p = '\0'; - m4_set_symbol_value_text (dest, str, len, 0); + obstack_1grow (obs, '\0'); + len = obstack_object_size (obs); + str = xcharalloc (len); + memcpy (str, obstack_finish (obs), len); + m4_set_symbol_value_text (dest, str, len - 1, 0); } break; default: diff --git a/modules/m4.c b/modules/m4.c index f4013efa..b8562ec2 100644 --- a/modules/m4.c +++ b/modules/m4.c @@ -157,7 +157,7 @@ M4BUILTIN_HANDLER (define) { m4_symbol_value *value = m4_symbol_value_create (); - m4_symbol_value_copy (value, m4_arg_symbol (argv, 2)); + m4_symbol_value_copy (context, value, m4_arg_symbol (argv, 2)); m4_symbol_define (M4SYMTAB, M4ARG (1), value); } else @@ -179,7 +179,7 @@ M4BUILTIN_HANDLER (pushdef) { m4_symbol_value *value = m4_symbol_value_create (); - m4_symbol_value_copy (value, m4_arg_symbol (argv, 2)); + m4_symbol_value_copy (context, value, m4_arg_symbol (argv, 2)); m4_symbol_pushdef (M4SYMTAB, M4ARG (1), value); } else diff --git a/tests/builtins.at b/tests/builtins.at index c63246bb..b059e7b5 100644 --- a/tests/builtins.at +++ b/tests/builtins.at @@ -210,6 +210,16 @@ base value. ]], [[m4:define.m4:1: Warning: undefine: undefined macro `macro' ]]) +dnl check regression present 2008-02-22 to 2008-04-30. +AT_DATA([in.m4], [[define(`qq', ``$*;$@'')dnl +define(`foo', qq(`a', `b'))dnl +foo +defn(`foo') +]]) +AT_CHECK_M4([in.m4], [0], [[a,b;a,b +a,b;`a',`b' +]]) + AT_CLEANUP |