diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-03-04 13:27:36 +0000 |
---|---|---|
committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-03-04 13:27:36 +0000 |
commit | 6b327e72c38ebfefe62221fa658ce2fbbed24f51 (patch) | |
tree | 71be86a0a626a331d7e3138f852a01f354b48e4f /ruby.c | |
parent | d04ee29e77891f1981dbf4d5a1d2c27a626fb52c (diff) |
ruby.c: warn_cr_in_shebang
* ruby.c (load_file_internal): warn if shebang line ends with a
carriage return.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53998 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby.c')
-rw-r--r-- | ruby.c | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -1668,6 +1668,14 @@ process_options(int argc, char **argv, struct cmdline_options *opt) return (VALUE)iseq; } +static void +warn_cr_in_shebang(const char *str, long len) +{ + if (str[len-1] == '\n' && str[len-2] == '\r') { + rb_warn("shebang line ends with \\r may cause a problem"); + } +} + struct load_file_arg { VALUE parser; VALUE fname; @@ -1715,6 +1723,7 @@ load_file_internal(VALUE argp_v) line_start++; RSTRING_GETMEM(line, str, len); if (len > 2 && str[0] == '#' && str[1] == '!') { + if (line_start == 1) warn_cr_in_shebang(str, len); if ((p = strstr(str+2, ruby_engine)) != 0) { goto start_read; } @@ -1732,6 +1741,7 @@ load_file_internal(VALUE argp_v) return 0; RSTRING_GETMEM(line, str, len); + warn_cr_in_shebang(str, len); if ((p = strstr(str, ruby_engine)) == 0) { /* not ruby script, assume -x flag */ goto search_shebang; |