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| author | Jan Stranik <jan@stranik.org> | 2022-10-28 16:13:42 -0400 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2022-11-17 12:07:45 +0200 |
| commit | 8a6c5be683a283d12cc795f091d52d6d75e2e5e8 (patch) | |
| tree | e6117cd668341796dee9af4f7ba47f1253e22993 /lib-src | |
| parent | 67d08daa97019ae11f5a85fc40cf95138e4837dc (diff) | |
| download | emacs-8a6c5be683a283d12cc795f091d52d6d75e2e5e8.tar.gz | |
Support multi-line C++11 strings in Ebrowse
* lib-src/ebrowse.c (yylex): Support C++11 multi-line strings.
(bug#58847)
Diffstat (limited to 'lib-src')
| -rw-r--r-- | lib-src/ebrowse.c | 63 |
1 files changed, 62 insertions, 1 deletions
diff --git a/lib-src/ebrowse.c b/lib-src/ebrowse.c index 641570da02e..d3af926b634 100644 --- a/lib-src/ebrowse.c +++ b/lib-src/ebrowse.c @@ -1574,6 +1574,67 @@ yylex (void) end_string: return end_char == '\'' ? CCHAR : CSTRING; + case 'R': + if (GET (c) == '"') + { + /* C++11 rstrings. */ + +#define RSTRING_EOF_CHECK \ + do { \ + if (c == '\0') \ + { \ + yyerror ("unterminated c++11 rstring", NULL); \ + UNGET (); \ + return CSTRING; \ + } \ + } while (0) + + char *rstring_prefix_start = in; + + while (GET (c) != '(') + { + RSTRING_EOF_CHECK; + if (c == '"') + { + yyerror ("malformed c++11 rstring", NULL); + return CSTRING; + } + } + char *rstring_prefix_end = in - 1; + while (TRUE) + { + switch (GET (c)) + { + default: + RSTRING_EOF_CHECK; + break; + case '\n': + INCREMENT_LINENO; + break; + case ')': + { + char *in_saved = in; + char *prefix = rstring_prefix_start; + while (prefix != rstring_prefix_end && GET (c) == *prefix) + { + RSTRING_EOF_CHECK; + prefix++; + } + if (prefix == rstring_prefix_end) + { + if (GET (c) == '"') + return CSTRING; + RSTRING_EOF_CHECK; + } + in = in_saved; + } + } + } + } + + UNGET (); + /* Fall through to identifiers and keywords. */ + FALLTHROUGH; case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n': @@ -1581,7 +1642,7 @@ yylex (void) case 'v': case 'w': case 'x': case 'y': case 'z': case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N': - case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U': + case 'O': case 'P': case 'Q': case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': case 'Y': case 'Z': case '_': { /* Identifier and keywords. */ |