mysqltest: support pairs of delimiters in replace_regex

Author: Sergei Golubchik

client/mysqltest.cc

@@ -9914,36 +9914,34 @@ struct st_regex
 int reg_replace(char** buf_p, int* buf_len_p, char *pattern, char *replace,
                 char *string, int icase);
 
+bool parse_re_part(char *start_re, char *end_re,
+                   char **p, char *end, char **buf)
+{
+  if (*start_re != *end_re)
+  {
+    switch ((*start_re= *(*p)++)) {
+    case '(': *end_re= ')'; break;
+    case '[': *end_re= ']'; break;
+    case '{': *end_re= '}'; break;
+    case '<': *end_re= '>'; break;
+    default: *end_re= *start_re;
+    }
+  }
 
+  while (*p < end && **p != *end_re)
+  {
+    if ((*p)[0] == '\\' && *p + 1 < end && (*p)[1] == *end_re)
+      (*p)++;
 
-/*
-  Finds the next (non-escaped) '/' in the expression.
-  (If the character '/' is needed, it can be escaped using '\'.)
-*/
+    *(*buf)++= *(*p)++;
+  }
+  *(*buf)++= 0;
+
+  (*p)++;
+
+  return *p > end;
+}
 
-#define PARSE_REGEX_ARG                         \
-  while (p < expr_end)                          \
-  {                                             \
-    char c= *p;                                 \
-    if (c == '/')                               \
-    {                                           \
-      if (last_c == '\\')                       \
-      {                                         \
-        buf_p[-1]= '/';                         \
-      }                                         \
-      else                                      \
-      {                                         \
-        *buf_p++ = 0;                           \
-        break;                                  \
-      }                                         \
-    }                                           \
-    else                                        \
-      *buf_p++ = c;                             \
-                                                \
-    last_c= c;                                  \
-    p++;                                        \
-  }                                             \
-                                                \
 /*
   Initializes the regular substitution expression to be used in the
   result output of test.
@@ -9955,10 +9953,9 @@ struct st_replace_regex* init_replace_regex(char* expr)
 {
   struct st_replace_regex* res;
   char* buf,*expr_end;
-  char* p;
+  char* p, start_re, end_re= 1;
   char* buf_p;
   uint expr_len= strlen(expr);
-  char last_c = 0;
   struct st_regex reg;
 
   /* my_malloc() will die on fail with MY_FAE */
@@ -9976,44 +9973,32 @@ struct st_replace_regex* init_replace_regex(char* expr)
   {
     bzero(&reg,sizeof(reg));
     /* find the start of the statement */
-    while (p < expr_end)
-    {
-      if (*p == '/')
-        break;
+    while (my_isspace(charset_info, *p) && p < expr_end)
       p++;
-    }
 
-    if (p == expr_end || ++p == expr_end)
+    if (p >= expr_end)
     {
       if (res->regex_arr.elements)
         break;
       else
         goto err;
     }
-    /* we found the start */
-    reg.pattern= buf_p;
-
-    /* Find first argument -- pattern string to be removed */
-    PARSE_REGEX_ARG
 
-      if (p == expr_end || ++p == expr_end)
-        goto err;
+    start_re= 0;
+    reg.pattern= buf_p;
+    if (parse_re_part(&start_re, &end_re, &p, expr_end, &buf_p))
+      goto err;
 
-    /* buf_p now points to the replacement pattern terminated with \0 */
     reg.replace= buf_p;
-
-    /* Find second argument -- replace string to replace pattern */
-    PARSE_REGEX_ARG
-
-      if (p == expr_end)
-        goto err;
-
-    /* skip the ending '/' in the statement */
-    p++;
+    if (parse_re_part(&start_re, &end_re, &p, expr_end, &buf_p))
+      goto err;
 
     /* Check if we should do matching case insensitive */
     if (p < expr_end && *p == 'i')
+    {
+      p++;
       reg.icase= 1;
+    }
 
     /* done parsing the statement, now place it in regex_arr */
     if (insert_dynamic(&res->regex_arr,(uchar*) &reg))

mysql-test/r/mysqltest.result

@@ -680,6 +680,9 @@ txt
 b is b and more is more
 txt
 a is a and less is more
+sflfdt 'ABCDfF bbddff h' bs txt;
+txt
+ABCDfF bbddff h
 create table t2 ( a char(10));
 garbage;
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'garbage' at line 1

mysql-test/suite/rpl/t/rpl_sp.test

@@ -614,7 +614,7 @@ show function status like '%mysqltestbug36570%';
 connection master;
 flush logs;
 let $MYSQLD_DATADIR= `select @@datadir`;
---replace_regex s/$MYSQL_TEST_DIR/MYSQL_TEST_DIR/ s/TIMESTAMP=[0-9]*/TIMESTAMP=t/
+--replace_regex /$MYSQL_TEST_DIR/MYSQL_TEST_DIR/ /TIMESTAMP=[0-9]*/TIMESTAMP=t/
 --exec $MYSQL_BINLOG --short-form $MYSQLD_DATADIR/master-bin.000001
 use test;
 drop procedure mysqltestbug36570_p1;

mysql-test/suite/sys_vars/t/report_port_basic.test

@@ -2,7 +2,7 @@
 #
 # only global
 #
---replace_regex s/[0-9]+/DEFAULT_MASTER_PORT/
+--replace_regex /[0-9]+/DEFAULT_MASTER_PORT/
 select @@global.report_port;
 --error ER_INCORRECT_GLOBAL_LOCAL_VAR
 select @@session.report_port;

mysql-test/t/mysqltest.test

@@ -2053,7 +2053,7 @@ select "at" as col1, "AT" as col2, "c" as col3;
 --replace_regex /a/b/ /ct/d/
 select "a" as col1, "ct" as col2;
 
---replace_regex /(strawberry)/raspberry and \1/ /blueberry/blackberry/ /potato/tomato/;
+--replace_regex /(strawberry)/raspberry and \1/ /blueberry/blackberry/ /potato/tomato/
 select "strawberry","blueberry","potato";
 
 --error 1
@@ -2098,6 +2098,12 @@ select "a is a and less is more" as txt;
 select "a is a and less is more" as txt;
 --enable_query_log
 
+#
+# different delimiters
+#
+--replace_regex (a)[b] /c/d/ <e>{f}i {g\/\}}/h/
+select 'ABCDEF abcdef g/}' as txt;
+
 #-------------------------------------------------------------------------
 # BUG #11754855 : Passing variable to --error  
 #-------------------------------------------------------------------------