diff options
Diffstat (limited to 'libbuild2/parser.cxx')
| -rw-r--r-- | libbuild2/parser.cxx | 55 |
1 files changed, 49 insertions, 6 deletions
diff --git a/libbuild2/parser.cxx b/libbuild2/parser.cxx index f0eafb3..76317fe 100644 --- a/libbuild2/parser.cxx +++ b/libbuild2/parser.cxx @@ -6656,6 +6656,8 @@ namespace build2 // continue accumulating or inject. We inject if the next token is not a // word, var expansion, or eval context or if it is separated. // + optional<pair<const value_type*, name>> path_concat; // Backup. + if (concat && last_concat ()) { // Concatenation does not affect the tokens we get, only what we do @@ -6695,6 +6697,13 @@ namespace build2 // dir/{$str} // file{$str} // + // And yet another exception: if the type is path or dir_path and the + // pattern mode is not ignore, then we will inject to try our luck in + // interpreting the concatenation result as a path pattern. This makes + // sure patterns like `$src_base/*.txt` work, naturally. Failed that, + // we will handle this concatenation as we do for other types (via the + // path_concat backup). + // // A concatenation cannot produce value/NULL. // @@ -6706,12 +6715,14 @@ namespace build2 bool e1 (tt == type::lcbrace && !peeked ().separated); bool e2 (pp || dp != nullptr || tp != nullptr); + const value_type* pt (&value_traits<path>::value_type); + const value_type* dt (&value_traits<dir_path>::value_type); + if (e1 || e2) { - if (vtype == &value_traits<path>::value_type || - vtype == &value_traits<string>::value_type) + if (vtype == pt || vtype == &value_traits<string>::value_type) ; // Representation is already in concat_data.value. - else if (vtype == &value_traits<dir_path>::value_type) + else if (vtype == dt) concat_data.value = move (concat_data.dir).representation (); else { @@ -6726,6 +6737,20 @@ namespace build2 vtype = nullptr; // Fall through to injection. } + else if (pmode != pattern_mode::ignore && + (vtype == pt || vtype == dt)) + { + path_concat = make_pair (vtype, concat_data); + + // Note: for path the representation is already in + // concat_data.value. + // + if (vtype == dt) + concat_data.value = move (concat_data.dir).representation (); + + vtype = nullptr; + // Fall through to injection. + } else { // This is either a simple name (untyped concatenation; in which @@ -6986,7 +7011,7 @@ namespace build2 // See if this is a pattern, path or regex. // // A path pattern either contains an unquoted wildcard character or, - // in the curly context, start with unquoted/unescaped `+`. + // in the curly context, starts with unquoted/unescaped `+`. // // A regex pattern starts with unquoted/unescaped `~` followed by a // non-alphanumeric delimiter and has the following form: @@ -7064,7 +7089,7 @@ namespace build2 // Note that we have to check for regex patterns first since // they may also be detected as path patterns. // - if (!quoted_first && regex_pattern ()) + if (!quoted_first && !path_concat && regex_pattern ()) { // Note: we may decide to support regex-based name generation // some day (though a substitution won't make sense here). @@ -7132,7 +7157,7 @@ namespace build2 // there isn't any good reason to; see also to_stream(name) for // the corresponding serialization logic). // - if (!quoted_first && regex_pattern ()) + if (!quoted_first && !path_concat && regex_pattern ()) { const char* w; if (val[0] == '~') @@ -7190,6 +7215,24 @@ namespace build2 } } + // If this is a concatenation of the path or dir_path type and it is + // not a pattern, then handle it in the same way as concatenations of + // other types (see above). + // + if (path_concat && !pat) + { + ns.push_back (move (path_concat->second)); + + // Restore the type information if that's the only name. + // + if (start == ns.size () && last_token ()) + vtype = path_concat->first; + + // Restart the loop. + // + continue; + } + // If we are a second half of a pair, add another first half // unless this is the first instance. // |