👌 IMPROVE: Use re.sub() instead of re.subn()[0] (#58)

Author: hukkinj1

markdown_it/common/utils.py

@@ -172,8 +172,8 @@ def stripEscape(string):
 
 #     if HTML_ESCAPE_REPLACE_RE.search(string):
 
-#         string, _ = UNESCAPE_HTML_RE.subn("&", string)
-#         string, _ = ESCAPE_AND_HTML.subn("&", string)
+#         string = UNESCAPE_HTML_RE.sub("&", string)
+#         string = ESCAPE_AND_HTML.sub("&", string)
 #         for k, v in {"<": "&lt;", ">": "&gt;", '"': "&quot;"}.items():
 #             string = string.replace(k, v)
 
@@ -191,7 +191,7 @@ def escapeHtml(raw: str):
 
 
 def escapeRE(string: str) -> str:
-    string, _ = REGEXP_ESCAPE_RE.subn("\\$&", string)
+    string = REGEXP_ESCAPE_RE.sub("\\$&", string)
     return string
 
 
@@ -291,7 +291,7 @@ def normalizeReference(string: str) -> str:
     """Helper to unify [reference labels]."""
     # Trim and collapse whitespace
     #
-    string, _ = re.subn(r"\s+", " ", string.strip())
+    string = re.sub(r"\s+", " ", string.strip())
 
     # In node v10 'ẞ'.toLowerCase() === 'Ṿ', which is presumed to be a bug
     # fixed in v12 (couldn't find any details).

markdown_it/extensions/anchors/index.py

@@ -76,11 +76,9 @@ def _anchor_func(state: StateCore):
             if level not in selected_levels:
                 continue
             title = "".join(
-                [
-                    child.content
-                    for child in state.tokens[idx + 1].children
-                    if child.type in ["text", "code_inline"]
-                ]
+                child.content
+                for child in state.tokens[idx + 1].children
+                if child.type in ["text", "code_inline"]
             )
             slug = unique_slug(slug_func(title), slugs)
             token.attrSet("id", slug)
@@ -116,9 +114,7 @@ def _anchor_func(state: StateCore):
 
 
 def slugify(title: str):
-    return re.subn(
-        r"[^\w\u4e00-\u9fff\- ]", "", title.strip().lower().replace(" ", "-")
-    )[0]
+    return re.sub(r"[^\w\u4e00-\u9fff\- ]", "", title.strip().lower().replace(" ", "-"))
 
 
 def unique_slug(slug: str, slugs: set):

markdown_it/rules_block/table.py

@@ -129,7 +129,7 @@ def table(state: StateBlock, startLine: int, endLine: int, silent: bool):
         return False
     if state.sCount[startLine] - state.blkIndent >= 4:
         return False
-    columns = escapedSplit(enclosingPipesRe.subn("", lineText)[0])
+    columns = escapedSplit(enclosingPipesRe.sub("", lineText))
 
     # header row will define an amount of columns in the entire table,
     # and align row shouldn't be smaller than that (the rest of the rows can)
@@ -178,7 +178,7 @@ def table(state: StateBlock, startLine: int, endLine: int, silent: bool):
             break
         if state.sCount[nextLine] - state.blkIndent >= 4:
             break
-        columns = escapedSplit(enclosingPipesRe.subn("", lineText)[0])
+        columns = escapedSplit(enclosingPipesRe.sub("", lineText))
 
         token = state.push("tr_open", "tr", 1)
         for i in range(columnCount):

markdown_it/rules_core/normalize.py

@@ -12,9 +12,9 @@
 def normalize(state: StateCore):
 
     # Normalize newlines
-    string, _ = NEWLINES_RE.subn("\n", state.src)
+    string = NEWLINES_RE.sub("\n", state.src)
 
     # Replace NULL characters
-    string, _ = NULL_RE.subn("\uFFFD", string)
+    string = NULL_RE.sub("\uFFFD", string)
 
     state.src = string