Translator – INPUT command

Similar to the translation of the PRINT statement, a lot of the translation work of the INPUT statement will take place in the semicolon and comma token handlers, with the INPUT and INPUT PROMPT command handlers being called at the end of the statement. The codes have been renamed for consistency and clarity, InputGet code will now be InputBegin, and InputPromptStr and InputPrompTmp will now be InputBeginStr and InputBeginTmp (the Tmp versions are not handled by the Translator).

There will be two command flags to keep track of the INPUT statement translation. The first is the InputBegin command flag, which indicates whether an InputBegin has been appended to the output yet. The semicolon and comma token handlers will use this flag to determine if the InputBegin code has been appended (INPUT) and whether a prompt string expression result is expected (INPUT PROMPT).

The semicolon will also use the InputBegin command flag to determine if it is at the end of the statement, which determines whether to set the second command flag, InputKeep. The InputKeep flag will be used by the command handlers at the end of the statement to determine whether the InputKeep sub-code flag should be set in the Input and InputPrompt codes at the end of the translated statement.