diff options
Diffstat (limited to 'grep.h')
| -rw-r--r-- | grep.h | 266 |
1 files changed, 266 insertions, 0 deletions
@@ -0,0 +1,266 @@ +#ifndef GREP_H +#define GREP_H +#include "color.h" +#ifdef USE_LIBPCRE2 +#define PCRE2_CODE_UNIT_WIDTH 8 +#include <pcre2.h> +#if (PCRE2_MAJOR >= 10 && PCRE2_MINOR >= 36) || PCRE2_MAJOR >= 11 +#define GIT_PCRE2_VERSION_10_36_OR_HIGHER +#endif +#if (PCRE2_MAJOR >= 10 && PCRE2_MINOR >= 35) || PCRE2_MAJOR >= 11 +#define GIT_PCRE2_VERSION_10_35_OR_HIGHER +#endif +#if (PCRE2_MAJOR >= 10 && PCRE2_MINOR >= 34) || PCRE2_MAJOR >= 11 +#define GIT_PCRE2_VERSION_10_34_OR_HIGHER +#endif +#else +typedef int pcre2_code; +typedef int pcre2_match_data; +typedef int pcre2_compile_context; +typedef int pcre2_general_context; +#endif +#ifndef PCRE2_MATCH_INVALID_UTF +/* PCRE2_MATCH_* dummy also with !USE_LIBPCRE2, for test-pcre2-config.c */ +#define PCRE2_MATCH_INVALID_UTF 0 +#endif +#include "thread-utils.h" +#include "userdiff.h" + +struct repository; + +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_FIELD_MIN = 0, + GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN, + GREP_HEADER_COMMITTER, + GREP_HEADER_REFLOG, + + /* Must be at the end of the enum */ + GREP_HEADER_FIELD_MAX +}; + +enum grep_color { + GREP_COLOR_CONTEXT, + GREP_COLOR_FILENAME, + GREP_COLOR_FUNCTION, + GREP_COLOR_LINENO, + GREP_COLOR_COLUMNNO, + GREP_COLOR_MATCH_CONTEXT, + GREP_COLOR_MATCH_SELECTED, + GREP_COLOR_SELECTED, + GREP_COLOR_SEP, + NR_GREP_COLORS +}; + +struct grep_pat { + struct grep_pat *next; + const char *origin; + int no; + enum grep_pat_token token; + char *pattern; + size_t patternlen; + enum grep_header_field field; + regex_t regexp; + pcre2_code *pcre2_pattern; + pcre2_match_data *pcre2_match_data; + pcre2_compile_context *pcre2_compile_context; + pcre2_general_context *pcre2_general_context; + const uint8_t *pcre2_tables; + uint32_t pcre2_jit_on; + unsigned fixed:1; + unsigned is_fixed:1; + unsigned ignore_case:1; + unsigned word_regexp:1; +}; + +enum grep_expr_node { + GREP_NODE_ATOM, + GREP_NODE_NOT, + GREP_NODE_AND, + GREP_NODE_TRUE, + GREP_NODE_OR +}; + +enum grep_pattern_type { + GREP_PATTERN_TYPE_UNSPECIFIED = 0, + GREP_PATTERN_TYPE_BRE, + GREP_PATTERN_TYPE_ERE, + GREP_PATTERN_TYPE_FIXED, + GREP_PATTERN_TYPE_PCRE +}; + +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_pat *header_list; + struct grep_pat **header_tail; + struct grep_expr *pattern_expression; + + /* + * NEEDSWORK: See if we can remove this field, because the repository + * should probably be per-source. That is, grep.c functions using this + * field should probably start using "repo" in "struct grep_source" + * instead. + * + * This is potentially the cause of at least one bug - "git grep" + * using the textconv attributes from the superproject on the + * submodules. See the failing "git grep --textconv" tests in + * t7814-grep-recurse-submodules.sh for more information. + */ + struct repository *repo; + + int linenum; + int columnnum; + int invert; + int ignore_case; + int status_only; + int name_only; + int unmatch_name_only; + int count; + int word_regexp; + int all_match; + int no_body_match; + int body_hit; +#define GREP_BINARY_DEFAULT 0 +#define GREP_BINARY_NOMATCH 1 +#define GREP_BINARY_TEXT 2 + int binary; + int allow_textconv; + int use_reflog_filter; + int relative; + int pathname; + int null_following_name; + int only_matching; + int color; + int max_depth; + int funcname; + int funcbody; + int extended_regexp_option; + enum grep_pattern_type pattern_type_option; + int ignore_locale; + char colors[NR_GREP_COLORS][COLOR_MAXLEN]; + unsigned pre_context; + unsigned post_context; + unsigned last_shown; + int show_hunk_mark; + int file_break; + int heading; + int max_count; + void *priv; + + void (*output)(struct grep_opt *opt, const void *data, size_t size); + void *output_priv; +}; + +#define GREP_OPT_INIT { \ + .relative = 1, \ + .pathname = 1, \ + .max_depth = -1, \ + .max_count = -1, \ + .pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED, \ + .colors = { \ + [GREP_COLOR_CONTEXT] = "", \ + [GREP_COLOR_FILENAME] = GIT_COLOR_MAGENTA, \ + [GREP_COLOR_FUNCTION] = "", \ + [GREP_COLOR_LINENO] = GIT_COLOR_GREEN, \ + [GREP_COLOR_COLUMNNO] = GIT_COLOR_GREEN, \ + [GREP_COLOR_MATCH_CONTEXT] = GIT_COLOR_BOLD_RED, \ + [GREP_COLOR_MATCH_SELECTED] = GIT_COLOR_BOLD_RED, \ + [GREP_COLOR_SELECTED] = "", \ + [GREP_COLOR_SEP] = GIT_COLOR_CYAN, \ + }, \ + .only_matching = 0, \ + .color = -1, \ + .output = std_output, \ +} + +struct config_context; +int grep_config(const char *var, const char *value, + const struct config_context *ctx, void *data); +void grep_init(struct grep_opt *, struct repository *repo); + +void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t); +void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t); +void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *); +void compile_grep_patterns(struct grep_opt *opt); +void free_grep_patterns(struct grep_opt *opt); +int grep_buffer(struct grep_opt *opt, const char *buf, unsigned long size); + +/* The field parameter is only used to filter header patterns + * (where appropriate). If filtering isn't desirable + * GREP_HEADER_FIELD_MAX should be supplied. + */ +int grep_next_match(struct grep_opt *opt, + const char *bol, const char *eol, + enum grep_context ctx, regmatch_t *pmatch, + enum grep_header_field field, int eflags); + +struct grep_source { + char *name; + + enum grep_source_type { + GREP_SOURCE_OID, + GREP_SOURCE_FILE, + GREP_SOURCE_BUF, + } type; + void *identifier; + struct repository *repo; /* if GREP_SOURCE_OID */ + + const char *buf; + unsigned long size; + + char *path; /* for attribute lookups */ + struct userdiff_driver *driver; +}; + +void grep_source_init_file(struct grep_source *gs, const char *name, + const char *path); +void grep_source_init_oid(struct grep_source *gs, const char *name, + const char *path, const struct object_id *oid, + struct repository *repo); +void grep_source_clear_data(struct grep_source *gs); +void grep_source_clear(struct grep_source *gs); +void grep_source_load_driver(struct grep_source *gs, + struct index_state *istate); + + +int grep_source(struct grep_opt *opt, struct grep_source *gs); + +struct grep_opt *grep_opt_dup(const struct grep_opt *opt); + +/* + * Mutex used around access to the attributes machinery if + * opt->use_threads. Must be initialized/destroyed by callers! + */ +extern int grep_use_locks; +extern pthread_mutex_t grep_attr_mutex; + +#endif |