adding user input functionality

Pobre-da-Silva · Aug 8, 2022 · 02741bd · 02741bd
1 parent 926e6d8
commit 02741bd
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Showing 3 changed files with 29 additions and 0 deletions.
diff --git a/pobrelanglib/lexer.py b/pobrelanglib/lexer.py
@@ -9,6 +9,12 @@ def lex_line(line: str) -> list[str]:
             case "scream":
                 tokens.append("SCR")
 
+            case "listen":
+                tokens.append("LST")
+
+            case "antidisestablishmentarianism":
+                tokens.append("ADM")
+
             case "work":
                 tokens.append("WRK")
 

diff --git a/pobrelanglib/parser.py b/pobrelanglib/parser.py
@@ -129,6 +129,24 @@ def parse_line(line: list[str]) -> None:
             # just a line break
             print()
 
+        case "LST" | "ADM":
+            if not len(line) == 2 or not is_token(line[1], "EXP"):
+                lt_panic("not learn how to use the input keywords correctly")
+
+            var = extract_expression(line[1])
+
+            if not var in variables:
+                lt_panic("read user input into a non-existing variable")
+
+            match line[0]:
+                case "LST":
+                    variables[var] = input()
+                case "ADM":
+                    try:
+                        variables[var] = parse_math(input())
+                    except (NameError, SyntaxError):
+                        lt_panic("input an invalid expression to the parser")
+
         case "ITM" | "TAG":
             if not len(line) == 3 or not (is_token(line[1], "EXP") and is_token(line[2], "EXP")):
                 lt_panic("create a variable like this")

diff --git a/test.pbr b/test.pbr
@@ -25,4 +25,9 @@ stamp PobreLang/shit
 
 burn PobreLang/shit
 
+item PobreLang/shit 0
+listen PobreLang/shit
+antidisestablishmentarianism PobreLang/shit
+burn PobreLang/shit
+
 work PobreLang/shit+3