diff options
Diffstat (limited to 'src/expr.h')
| -rw-r--r-- | src/expr.h | 35 |
1 files changed, 32 insertions, 3 deletions
@@ -8,14 +8,35 @@ #ifndef BFS_EXPR_H #define BFS_EXPR_H -#include "prelude.h" #include "color.h" #include "eval.h" #include "stat.h" + #include <sys/types.h> #include <time.h> /** + * Argument/token/expression kinds. + */ +enum bfs_kind { + /** A flag (-H, -L, etc.). */ + BFS_FLAG, + + /** A root path. */ + BFS_PATH, + + /** An option (-follow, -mindepth, etc.). */ + BFS_OPTION, + /** A test (-name, -size, etc.). */ + BFS_TEST, + /** An action (-print, -exec, etc.). */ + BFS_ACTION, + + /** An operator (-and, -or, etc.). */ + BFS_OPERATOR, +}; + +/** * Integer comparison modes. */ enum bfs_int_cmp { @@ -97,6 +118,8 @@ struct bfs_expr { size_t argc; /** The command line arguments comprising this expression. */ char **argv; + /** The kind of expression this is. */ + enum bfs_kind kind; /** The number of files this expression keeps open between evaluations. */ int persistent_fds; @@ -123,7 +146,7 @@ struct bfs_expr { /** Total time spent running this predicate. */ struct timespec elapsed; - /** Auxilliary data for the evaluation function. */ + /** Auxiliary data for the evaluation function. */ union { /** Child expressions. */ struct bfs_exprs children; @@ -207,7 +230,7 @@ struct bfs_ctx; /** * Create a new expression. */ -struct bfs_expr *bfs_expr_new(struct bfs_ctx *ctx, bfs_eval_fn *eval, size_t argc, char **argv); +struct bfs_expr *bfs_expr_new(struct bfs_ctx *ctx, bfs_eval_fn *eval, size_t argc, char **argv, enum bfs_kind kind); /** * @return Whether this type of expression has children. @@ -244,4 +267,10 @@ bool bfs_expr_cmp(const struct bfs_expr *expr, long long n); */ void bfs_expr_clear(struct bfs_expr *expr); +/** + * Iterate over the children of an expression. + */ +#define for_expr(child, expr) \ + for (struct bfs_expr *child = bfs_expr_children(expr); child; child = child->next) + #endif // BFS_EXPR_H |