Collaboration diagram for The Chew component interface.:

Modules
	Macro-generated code.
Files
file	chew.c
file	chew.h
Typedefs
typedef enum comment_state	comment_state_t
Enumerations
enum	comment_state { NO_COMMENT = false, C_COMMENT, CXX_COMMENT, STARTING_COMMENT, FINISHING_COMMENT, PSEUDO_COMMENT }
enum	line_state_t { LS_NEUTER, LS_DIRECTIVE, LS_CODE }
Functions
unsigned	eol (char const *cp)
char const *	chew_on (char const *cp)
char const *	chew_symbol (char const *cp)
char const *	chew_continuation (char const *cp)
char const *	chew_macro_call (char const *cp)
char const *	chew_header_name (char const *cp)
char const *	chew_string (char const *cp)
char const *	chew_unbroken_string (char const *cp)
void	chew_toplevel (void)

Typedef Documentation

typedef enum comment_state comment_state_t

Enumeration of comment states

Enumeration Type Documentation

enum comment_state

Enumeration of comment states

Enumerator:

NO_COMMENT	Outside a comment
C_COMMENT	In a C-style comment
CXX_COMMENT	In a C++-style comment, i.e. // and end of line
STARTING_COMMENT	Just after forward-slash + back-slash + newline
FINISHING_COMMENT	Just after star + back-slash + newline in a C comment
PSEUDO_COMMENT	In the text of a hash-error directive or the definiens of a hash-define

Definition at line 58 of file chew.h.

enum line_state_t

Enumeration of states of a source line

Enumerator:

LS_NEUTER	Only whitespace and comments so far on the line
LS_DIRECTIVE	Only whitespace, comments, and a hash- so far on the line
LS_CODE	Source code found on the line (text other than whitespace, comments, or a `#`-directive)

Definition at line 74 of file chew.h.

Function Documentation

char const* chew_continuation ( char const * cp )

Consume line-continuations at the input text pointer.

Parameters:

cp	The current text pointer

Returns:: Pointer to the next character of input following any sequence of 1 or more line-continuations, i.e. "\\n". If there is no such sequence cp is returned unchanged.

The line buffer is extended with each continuation by appending the next physical line of input.

Definition at line 134 of file chew.c.

References eol(), and read_more().

Referenced by canonical_string_init_by_test(), canonical_string_parse_next_part(), char_escape_val(), chew_header_name(), chew_macro_call(), chew_string(), chew_symbol(), decode_utf8(), eval_character_constant(), eval_numeral(), eval_numeral_helper(), eval_numerical_character_constant(), eval_unary(), match_op(), and text_match().

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char const* chew_header_name ( char const * cp )

Consume a header file name in source text until a delimiter or end of line is found.

Parameters:

cp	The current text pointer addressing a header file name.

Returns:: A pointer to the next input character that cannot be part of the header file name, or NUL at end of line.

Definition at line 235 of file chew.c.

References chew_continuation(), and is_symbol_inner_char().

Referenced by eval_hash_include().

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char const* chew_macro_call ( char const * cp )

Consume a preprocessor macro invocation.

Parameters:

cp	The current text pointer addressing a macro invocation.

Returns:: A pointer to the next input character that cannot be part of a macro invocation, or NUL at end of line.

The function does not insist that cp initially addresses an identifier. It may also address '(' and in that case the function will consume an argument list until it passes a balancing ')' or reaches a character that cannot belong to an argument list.

Definition at line 201 of file chew.c.

References chew_continuation(), chew_macro_call(), chew_on(), chew_string(), and chew_symbol().

Referenced by chew_macro_call(), and eval_possible_symbol().

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char const* chew_on ( char const * cp )

Consume whitespace, comments, quotation or the text of a free-form directive (hash-error,hash-pragma) in the source text and stop at the first character beyond all these.

Parameters:

cp	The current text pointer

Returns:: A pointer to the next input character that is not to be chewed.

The function replenishes the line buffer and copes with line-continuations. It maintains state with respect to all syntactically significant categories of context.

Definition at line 277 of file chew.c.

References C_COMMENT, CXX_COMMENT, eol(), FINISHING_COMMENT, GET_PUBLIC, GET_STATE, GRIPE_NEWLINE_IN_QUOTE, GRIPE_STRAY_ESCAPE, GRIPE_UNCLOSED_QUOTE, LS_CODE, LS_NEUTER, NO_COMMENT, parse_error(), read_more(), report(), SET_PUBLIC, SET_STATE, and STARTING_COMMENT.