[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,
};

struct grep_pat {
	struct grep_pat *next;
	const char *origin;
	int no;
	enum grep_pat_token token;
	const char *pattern;
	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;
	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;
#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;
	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 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
83b5d2f5 JH	20	struct grep_pat {
	21	struct grep_pat *next;
	22	const char *origin;
	23	int no;
	24	enum grep_pat_token token;
	25	const char *pattern;
	26	regex_t regexp;
	27	};
	28
	29	enum grep_expr_node {
	30	GREP_NODE_ATOM,
	31	GREP_NODE_NOT,
	32	GREP_NODE_AND,
	33	GREP_NODE_OR,
	34	};
	35
	36	struct grep_expr {
	37	enum grep_expr_node node;
	38	union {
	39	struct grep_pat *atom;
	40	struct grep_expr *unary;
	41	struct {
	42	struct grep_expr *left;
	43	struct grep_expr *right;
	44	} binary;
	45	} u;
	46	};
	47
	48	struct grep_opt {
	49	struct grep_pat *pattern_list;
	50	struct grep_pat **pattern_tail;
	51	struct grep_expr *pattern_expression;
	52	int prefix_length;
	53	regex_t regexp;
	54	unsigned linenum:1;
	55	unsigned invert:1;
	56	unsigned status_only:1;
	57	unsigned name_only:1;
	58	unsigned unmatch_name_only:1;
	59	unsigned count:1;
	60	unsigned word_regexp:1;
	61	unsigned fixed:1;
	62	#define GREP_BINARY_DEFAULT 0
	63	#define GREP_BINARY_NOMATCH 1
	64	#define GREP_BINARY_TEXT 2
	65	unsigned binary:2;
	66	unsigned extended:1;
	67	unsigned relative:1;
	68	unsigned pathname:1;
	69	int regflags;
	70	unsigned pre_context;
	71	unsigned post_context;
	72	};
	73
	74	extern void append_grep_pattern(struct grep_opt opt, const char pat, const char *origin, int no, enum grep_pat_token t);
	75	extern void compile_grep_patterns(struct grep_opt *opt);
b48fb5b6	76	extern void free_grep_patterns(struct grep_opt *opt);
83b5d2f5 JH	77	extern int grep_buffer(struct grep_opt opt, const char name, char *buf, unsigned long size);
	78
	79	#endif