diff options
| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-09-10 07:00:44 +0000 |
|---|---|---|
| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-09-10 07:00:44 +0000 |
| commit | 83b76913d86935640344664e682656bf8f379119 (patch) | |
| tree | df1357f5cc054c67af4cc6b252e1137edf1e3bd8 /regparse.c | |
| parent | ee647e1b96982c7ff459d7af1a6109f7d54f61c1 (diff) | |
Warn unknown escaped chars in regexp.
* regparse.c (UNKNOWN_ESC_WARN): added.
* regparse.c (conv_backslash_value): Warn unknown
escaped chars in regexp. [ruby-dev:39104]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24825 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'regparse.c')
| -rw-r--r-- | regparse.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/regparse.c b/regparse.c index 9295e1d5ab..b9667c6f67 100644 --- a/regparse.c +++ b/regparse.c @@ -2115,6 +2115,8 @@ or_cclass(CClassNode* dest, CClassNode* cc, ScanEnv* env) return 0; } +static void UNKNOWN_ESC_WARN(ScanEnv *env, int c); + static int conv_backslash_value(int c, ScanEnv* env) { @@ -2133,6 +2135,8 @@ conv_backslash_value(int c, ScanEnv* env) break; default: + if (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z')) + UNKNOWN_ESC_WARN(env, c); break; } } @@ -2885,6 +2889,22 @@ CC_DUP_WARN(ScanEnv *env) } } +static void +UNKNOWN_ESC_WARN(ScanEnv *env, int c) +{ + UChar buf[WARN_BUFSIZE]; + if (onig_warn == onig_null_warn || !RTEST(ruby_verbose)) return ; + + onig_snprintf_with_pattern(buf, WARN_BUFSIZE, env->enc, + env->pattern, env->pattern_end, + (UChar* )"Unknown escape \\%c is ignored", c); + + if (env->sourcefile == NULL) + (*onig_warn)((char* )buf); + else + rb_compile_warn(env->sourcefile, env->sourceline, (char* )buf); +} + static UChar* find_str_position(OnigCodePoint s[], int n, UChar* from, UChar* to, UChar **next, OnigEncoding enc) |