Unescape all known escapes

[sqlconvert.git] / sqlconvert / process_mysql.py

diff --git a/sqlconvert/process_mysql.py b/sqlconvert/process_mysql.py
index 3f2f6aa3c7dee8ad84f60c3a630050c8f3d413b6..218655aa976090c7af1a79c6881ca6d35b0311e0 100644 (file)
--- a/sqlconvert/process_mysql.py
+++ b/sqlconvert/process_mysql.py
@@ -26,7 +26,7 @@ def is_directive_statement(statement):
     return True
 
 
-def remove_directives(statement):
+def remove_directive_tokens(statement):
     """Remove /*! directives */ from the first-level"""
     new_tokens = []
     for token in statement.tokens:
@@ -49,6 +49,27 @@ def requote_names(token_list):
                 token.normalized = token.value = '"%s"' % value
 
 
+def unescape_strings(token_list):
+    """Unescape strings"""
+    for token in token_list.flatten():
+        if token.ttype is T.String.Single:
+            value = token.value
+            for orig, repl in (
+                ('\\"', '"'),
+                ("\\'", "'"),
+                ("''", "'"),
+                ('\\b', '\b'),
+                ('\\n', '\n'),
+                ('\\r', '\r'),
+                ('\\t', '\t'),
+                ('\\\032', '\032'),
+                ('\\\\', '\\'),
+            ):
+                value = value.replace(orig, repl)
+            token.normalized = token.value = value
+
+
 def process_statement(statement):
-    remove_directives(statement)
+    remove_directive_tokens(statement)
     requote_names(statement)
+    unescape_strings(statement)