From f59d91f1544cd4fd6142290dffd968560505e448 Mon Sep 17 00:00:00 2001
From: Maximilian Fridrich <m.fridrich@commend.com>
Date: Thu, 5 Dec 2024 14:50:08 +0100
Subject: [PATCH] fmt/pl.c fix pl_trim, pl_ltrim, and pl_rtrim

---
 src/fmt/pl.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/src/fmt/pl.c b/src/fmt/pl.c
index 47057236f..106631f70 100644
--- a/src/fmt/pl.c
+++ b/src/fmt/pl.c
@@ -784,16 +784,19 @@ const char *pl_strstr(const struct pl *pl, const char *str)
  */
 int pl_ltrim(struct pl *pl)
 {
-	if (!pl_isset(pl))
+	if (!pl)
 		return EINVAL;
 
-	while (!re_regex(pl->p, 1, "[ \t\r\n]")) {
-		++pl->p;
-		--pl->l;
-		if (!pl->l)
-			return EINVAL;
+	if (!pl_isset(pl))
+		return 0;
+
+	size_t i = 0;
+	while (i < pl->l && isspace((unsigned char)pl->p[i])) {
+		++i;
 	}
 
+	pl_advance(pl, i);
+
 	return 0;
 }
 
@@ -807,13 +810,14 @@ int pl_ltrim(struct pl *pl)
  */
 int pl_rtrim(struct pl *pl)
 {
-	if (!pl_isset(pl))
+	if (!pl)
 		return EINVAL;
 
-	while (!re_regex(pl->p + pl->l - 1, 1, "[ \t\r\n]")) {
+	if (!pl_isset(pl))
+		return 0;
+
+	while (pl->l > 0 && isspace((unsigned char)pl->p[pl->l - 1])) {
 		--pl->l;
-		if (!pl->l)
-			return EINVAL;
 	}
 
 	return 0;