feat(util): add string.remove_prefix.

Author: Redbeanw44602

Diff for: src/rockchip/RKCfg.cpp

@@ -64,7 +64,8 @@ RKCfgFile::fromParameter(const std::string& path, AutoScanArgument auto_scan_arg
     // "mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),...,0x00400000@0x00E3a000(userdata),-@0x0123a000(userdisk:grow)"
     std::string mtdparts;
     while (std::getline(file, mtdparts)) {
-        if (mtdparts.starts_with("mtdparts=")) break;
+        if (mtdparts.starts_with("CMDLINE: "))
+            if (mtdparts.starts_with("mtdparts=")) break;
     }
     spdlog::debug("mtdparts: {}", mtdparts);
     if (mtdparts.empty()) {

Diff for: src/util/String.cpp

@@ -33,6 +33,12 @@ std::optional<uint32_t> to_uint32(const std::string& str) {
     return value;
 }
 
+void remove_prefix(std::string& str, const std::string& prefix) {
+    if (str.size() >= prefix.size() && str.compare(0, prefix.size(), prefix) == 0) {
+        str.erase(0, prefix.size());
+    }
+}
+
 void remove_suffix(std::string& str, const std::string& suffix) {
     if (str.size() >= suffix.size() && str.compare(str.size() - suffix.size(), suffix.size(), suffix) == 0) {
         str.erase(str.size() - suffix.size());

Diff for: src/util/String.h

@@ -12,6 +12,8 @@ bool        to_char16(const std::string& str, char16_t* des, size_t len);
 // TODO: Replace with: std::expected
 std::optional<uint32_t> to_uint32(const std::string& str);
 
+void remove_prefix(std::string& str, const std::string& prefix);
+
 void remove_suffix(std::string& str, const std::string& suffix);