Add str.strip() to asr -> asr

Author: AbdelrahmanKhaledd

src/lpython/semantics/python_ast_to_asr.cpp

@@ -4296,6 +4296,20 @@ class BodyVisitor : public CommonVisitor<BodyVisitor> {
                                     args.push_back(al, arg);
                                     tmp = make_call_helper(al, fn_div, current_scope, args, "_lpython_str_lstrip", x.base.base.loc);
                                     return;
+                                } else if (std::string(at->m_attr) == std::string("strip")) {
+                                    if(args.size() != 0) {
+                                        throw SemanticError("str.srtrip() takes no arguments",
+                                            x.base.base.loc);
+                                    }
+                                    ASR::symbol_t *fn_div = resolve_intrinsic_function(x.base.base.loc, "_lpython_str_strip");
+                                    Vec<ASR::call_arg_t> args;
+                                    args.reserve(al, 1);
+                                    ASR::call_arg_t arg;
+                                    arg.loc = x.base.base.loc;
+                                    arg.m_value = se;
+                                    args.push_back(al, arg);
+                                    tmp = make_call_helper(al, fn_div, current_scope, args, "_lpython_str_strip", x.base.base.loc);
+                                    return;
                                 }
                             }
                             handle_attribute(se, at->m_attr, x.base.base.loc, eles);

src/runtime/lpython_builtin.py

@@ -626,7 +626,7 @@ def _lpython_str_capitalize(x: str) -> str:
     return x
 
 @overload
-def _lpython_str_lower(x: str) ->str:
+def _lpython_str_lower(x: str) -> str:
     res: str
     res = ""
     i:str
@@ -652,3 +652,10 @@ def _lpython_str_lstrip(x: str) -> str:
     while ind < len(x) and x[ind] == ' ':
         ind += 1
     return x[ind :len(x)]
+
+@overload
+def _lpython_str_strip(x: str) -> str:
+    res :str
+    res = _lpython_str_lstrip(x)
+    res = _lpython_str_rstrip(res)
+    return res