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71 lines
1.4 KiB
71 lines
1.4 KiB
#ifndef GREP_H |
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#define GREP_H |
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enum grep_pat_token { |
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GREP_PATTERN, |
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GREP_AND, |
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GREP_OPEN_PAREN, |
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GREP_CLOSE_PAREN, |
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GREP_NOT, |
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GREP_OR, |
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}; |
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struct grep_pat { |
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struct grep_pat *next; |
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const char *origin; |
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int no; |
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enum grep_pat_token token; |
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const char *pattern; |
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regex_t regexp; |
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}; |
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enum grep_expr_node { |
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GREP_NODE_ATOM, |
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GREP_NODE_NOT, |
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GREP_NODE_AND, |
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GREP_NODE_OR, |
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}; |
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struct grep_expr { |
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enum grep_expr_node node; |
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union { |
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struct grep_pat *atom; |
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struct grep_expr *unary; |
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struct { |
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struct grep_expr *left; |
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struct grep_expr *right; |
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} binary; |
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} u; |
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}; |
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struct grep_opt { |
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struct grep_pat *pattern_list; |
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struct grep_pat **pattern_tail; |
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struct grep_expr *pattern_expression; |
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int prefix_length; |
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regex_t regexp; |
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unsigned linenum:1; |
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unsigned invert:1; |
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unsigned status_only:1; |
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unsigned name_only:1; |
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unsigned unmatch_name_only:1; |
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unsigned count:1; |
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unsigned word_regexp:1; |
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unsigned fixed:1; |
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#define GREP_BINARY_DEFAULT 0 |
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#define GREP_BINARY_NOMATCH 1 |
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#define GREP_BINARY_TEXT 2 |
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unsigned binary:2; |
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unsigned extended:1; |
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unsigned relative:1; |
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unsigned pathname:1; |
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int regflags; |
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unsigned pre_context; |
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unsigned post_context; |
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}; |
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extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t); |
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extern void compile_grep_patterns(struct grep_opt *opt); |
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extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size); |
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#endif
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