From 74e2e8c772d0f88da6684918f782b37156f10fb3 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Sat, 23 May 2026 02:21:09 -0400 Subject: core: Add lexer + parser groundwork Signed-off-by: Ian Moffett --- include/cescal/lexer.h | 24 ++++++++++++++++++++++++ include/cescal/parser.h | 20 ++++++++++++++++++++ include/cescal/token.h | 38 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 82 insertions(+) create mode 100644 include/cescal/lexer.h create mode 100644 include/cescal/parser.h create mode 100644 include/cescal/token.h (limited to 'include') diff --git a/include/cescal/lexer.h b/include/cescal/lexer.h new file mode 100644 index 0000000..7d4a9b4 --- /dev/null +++ b/include/cescal/lexer.h @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2026, Chloe M. + * Provided under the BSD-3 clause + */ + +#ifndef CESCAL_LEXER_H +#define CESCAL_LEXER_H 1 + +#include +#include +#include "cescal/token.h" +#include "cescal/state.h" + +/* + * Consume a single token from the input source file + * + * @state: Compiler state + * @res: Token result is written here + * + * Returns zero on success + */ +int lexer_nom(struct cescal_state *state, struct token *res); + +#endif /* !CESCAL_LEXER_H */ diff --git a/include/cescal/parser.h b/include/cescal/parser.h new file mode 100644 index 0000000..c97006b --- /dev/null +++ b/include/cescal/parser.h @@ -0,0 +1,20 @@ +/* + * Copyright (c) 2026, Chloe M. + * Provided under the BSD-3 clause + */ + +#ifndef CESCAL_PARSER_H +#define CESCAL_PARSER_H 1 + +#include "cescal/state.h" + +/* + * Begin parsing the input source file + * + * @state: Compiler state + * + * Returns zero on success + */ +int parser_parse(struct cescal_state *state); + +#endif /* !CESCAL_PARSER_H */ diff --git a/include/cescal/token.h b/include/cescal/token.h new file mode 100644 index 0000000..0be8ff0 --- /dev/null +++ b/include/cescal/token.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2026, Chloe M. + * Provided under the BSD-3 clause + */ + +#ifndef CESCAL_TOKEN_H +#define CESCAL_TOKEN_H 1 + +/* + * Represents valid source file token types + */ +typedef enum { + TT_NONE, /* [none] */ + TT_IDENT, /* [identifier] */ + TT_INTLIT, /* [0-9]+ */ + TT_LPAREN, /* '(' */ + TT_RPAREN, /* '( */ + TT_COMMA, /* ',' */ + TT_RETURN, /* 'return' */ + TT_PUB, /* 'pub' */ + TT_PROC, /* 'proc' */ + TT_BEGIN, /* 'begin' */ + TT_END, /* 'end' */ +} tt_t; + +/* + * Represents a source file token + * + * @type: Token type + */ +struct token { + tt_t type; + union { + char c; + }; +}; + +#endif /* !CESCAL_TOKEN_H */ -- cgit v1.2.3