[thirdparty/git.git] / grep.h

#ifndef GREP_H
#define GREP_H

enum grep_pat_token {
	GREP_PATTERN,
	GREP_PATTERN_HEAD,
	GREP_PATTERN_BODY,
	GREP_AND,
	GREP_OPEN_PAREN,
	GREP_CLOSE_PAREN,
	GREP_NOT,
	GREP_OR,
};

enum grep_context {
	GREP_CONTEXT_HEAD,
	GREP_CONTEXT_BODY,
};

enum grep_header_field {
	GREP_HEADER_AUTHOR = 0,
	GREP_HEADER_COMMITTER,
};

struct grep_pat {
	struct grep_pat *next;
	const char *origin;
	int no;
	enum grep_pat_token token;
	const char *pattern;
	enum grep_header_field field;
	regex_t regexp;
};

enum grep_expr_node {
	GREP_NODE_ATOM,
	GREP_NODE_NOT,
	GREP_NODE_AND,
	GREP_NODE_OR,
};

struct grep_expr {
	enum grep_expr_node node;
	unsigned hit;
	union {
		struct grep_pat *atom;
		struct grep_expr *unary;
		struct {
			struct grep_expr *left;
			struct grep_expr *right;
		} binary;
	} u;
};

struct grep_opt {
	struct grep_pat *pattern_list;
	struct grep_pat **pattern_tail;
	struct grep_expr *pattern_expression;
	int prefix_length;
	regex_t regexp;
	unsigned linenum:1;
	unsigned invert:1;
	unsigned status_only:1;
	unsigned name_only:1;
	unsigned unmatch_name_only:1;
	unsigned count:1;
	unsigned word_regexp:1;
	unsigned fixed:1;
	unsigned all_match:1;
#define GREP_BINARY_DEFAULT	0
#define GREP_BINARY_NOMATCH	1
#define GREP_BINARY_TEXT	2
	unsigned binary:2;
	unsigned extended:1;
	unsigned relative:1;
	unsigned pathname:1;
	unsigned null_following_name:1;
	int regflags;
	unsigned pre_context;
	unsigned post_context;
};

extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
extern void compile_grep_patterns(struct grep_opt *opt);
extern void free_grep_patterns(struct grep_opt *opt);
extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);

#endif
Commit	Line	Data
83b5d2f5 JH	1	#ifndef GREP_H
	2	#define GREP_H
	3
	4	enum grep_pat_token {
	5	GREP_PATTERN,
480c1ca6 JH	6	GREP_PATTERN_HEAD,
480c1ca6 JH	7	GREP_PATTERN_BODY,
83b5d2f5 JH	8	GREP_AND,
	9	GREP_OPEN_PAREN,
	10	GREP_CLOSE_PAREN,
	11	GREP_NOT,
	12	GREP_OR,
	13	};
	14
480c1ca6 JH	15	enum grep_context {
	16	GREP_CONTEXT_HEAD,
	17	GREP_CONTEXT_BODY,
	18	};
	19
a4d7d2c6 JH	20	enum grep_header_field {
	21	GREP_HEADER_AUTHOR = 0,
	22	GREP_HEADER_COMMITTER,
	23	};
	24
83b5d2f5 JH	25	struct grep_pat {
	26	struct grep_pat *next;
	27	const char *origin;
	28	int no;
	29	enum grep_pat_token token;
	30	const char *pattern;
a4d7d2c6	31	enum grep_header_field field;
83b5d2f5 JH	32	regex_t regexp;
	33	};
	34
	35	enum grep_expr_node {
	36	GREP_NODE_ATOM,
	37	GREP_NODE_NOT,
	38	GREP_NODE_AND,
	39	GREP_NODE_OR,
	40	};
	41
	42	struct grep_expr {
	43	enum grep_expr_node node;
0ab7befa	44	unsigned hit;
83b5d2f5 JH	45	union {
	46	struct grep_pat *atom;
	47	struct grep_expr *unary;
	48	struct {
	49	struct grep_expr *left;
	50	struct grep_expr *right;
	51	} binary;
	52	} u;
	53	};
	54
	55	struct grep_opt {
	56	struct grep_pat *pattern_list;
	57	struct grep_pat **pattern_tail;
	58	struct grep_expr *pattern_expression;
	59	int prefix_length;
	60	regex_t regexp;
	61	unsigned linenum:1;
	62	unsigned invert:1;
	63	unsigned status_only:1;
	64	unsigned name_only:1;
	65	unsigned unmatch_name_only:1;
	66	unsigned count:1;
	67	unsigned word_regexp:1;
	68	unsigned fixed:1;
0ab7befa	69	unsigned all_match:1;
83b5d2f5 JH	70	#define GREP_BINARY_DEFAULT 0
	71	#define GREP_BINARY_NOMATCH 1
	72	#define GREP_BINARY_TEXT 2
	73	unsigned binary:2;
	74	unsigned extended:1;
	75	unsigned relative:1;
	76	unsigned pathname:1;
83caecca	77	unsigned null_following_name:1;
83b5d2f5 JH	78	int regflags;
	79	unsigned pre_context;
	80	unsigned post_context;
	81	};
	82
	83	extern void append_grep_pattern(struct grep_opt opt, const char pat, const char *origin, int no, enum grep_pat_token t);
a4d7d2c6	84	extern void append_header_grep_pattern(struct grep_opt , enum grep_header_field, const char );
83b5d2f5	85	extern void compile_grep_patterns(struct grep_opt *opt);
b48fb5b6	86	extern void free_grep_patterns(struct grep_opt *opt);
83b5d2f5 JH	87	extern int grep_buffer(struct grep_opt opt, const char name, char *buf, unsigned long size);
	88
	89	#endif