Mercurial > projects > pwm
diff tok.h @ 27:722a45b4028b
Add define command for defining macros
Macros are parsed when they are defined with the D command and can
subsequently be used as arguments for other commands.
Handle out of memory errors directly in tok.c.
| author | Guido Berhoerster <guido+pwm@berhoerster.name> |
|---|---|
| date | Mon, 25 Sep 2017 21:21:25 +0200 |
| parents | a7e41e1a79c8 |
| children |
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--- a/tok.h Thu Sep 21 09:45:59 2017 +0200 +++ b/tok.h Mon Sep 25 21:21:25 2017 +0200 @@ -1,5 +1,5 @@ /* - * Copyright (C) 2016 Guido Berhoerster <guido+pwm@berhoerster.name> + * Copyright (C) 2017 Guido Berhoerster <guido+pwm@berhoerster.name> * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the @@ -25,11 +25,38 @@ #define TOK_H enum tok_err { - TOK_ERR_SYSTEM_ERROR = -1, - TOK_ERR_UNTERMINATED_QUOTE = -2, - TOK_ERR_TRAILING_BACKSLASH = -3 + TOK_ERR_OK, + TOK_ERR_UNTERMINATED_QUOTE = -1, + TOK_ERR_TRAILING_BACKSLASH = -2, + TOK_ERR_INVALID_MACRO_NAME = -3 +}; + +enum tok_type { + TOK_ARG, + TOK_MACRO +}; + +struct tok_any { + enum tok_type type; }; -enum tok_err tok_tokenize(const char *, int *, char ***); +struct tok_arg { + enum tok_type type; + char *value; +}; + +struct tok_macro { + enum tok_type type; + char *name; +}; + +union tok { + struct tok_any any; + struct tok_arg arg; + struct tok_macro macro; +}; + +void tok_free(union tok **); +enum tok_err tok_tokenize(const char *, size_t *, union tok ***); #endif /* !TOK_H */