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Editing: glob.h
#ifndef RBIMPL_GLOB_H /*-*-C++-*-vi:se ft=cpp:*/ #define RBIMPL_GLOB_H /** * @file * @author Ruby developers <ruby-core@ruby-lang.org> * @copyright This file is a part of the programming language Ruby. * Permission is hereby granted, to either redistribute and/or * modify this file, provided that the conditions mentioned in the * file COPYING are met. Consult the file for details. * @warning Symbols prefixed with either `RBIMPL` or `rbimpl` are * implementation details. Don't take them as canon. They could * rapidly appear then vanish. The name (path) of this header file * is also an implementation detail. Do not expect it to persist * at the place it is now. Developers are free to move it anywhere * anytime at will. * @note To ruby-core: remember that this header can be possibly * recursively included from extension libraries written in C++. * Do not expect for instance `__VA_ARGS__` is always available. * We assume C99 for ruby itself but we don't assume languages of * extension libraries. They could be written in C++98. * @brief Declares ::rb_glob(). */ #include "ruby/internal/attr/nonnull.h" #include "ruby/internal/dllexport.h" #include "ruby/internal/value.h" RBIMPL_SYMBOL_EXPORT_BEGIN() /** * Type of a glob callback function. Called every time glob scans a path. * * @param[in] path The path in question. * @param[in] arg The argument passed to rb_glob(). * @param[in] enc Encoding of the path. * @retval -1 Not enough memory to do the operation. * @retval 0 Operation successful. * @retval otherwise Opaque exception state. * @note You can use rb_protect() to generate the return value. * * @internal * * This is a wrong design. Type of `enc` should have been `rb_encoding*` * instead of just `void*`. But we cannot change the API any longer. * * Though not a part of our public API, the "opaque exception state" is in fact * an enum ruby_tag_type. You can see the potential "otherwise" values by * looking at vm_core.h. */ typedef int ruby_glob_func(const char *path, VALUE arg, void *enc); RBIMPL_ATTR_NONNULL(()) /** * The "glob" operator. Expands the given pattern against the actual local * filesystem, then iterates over the expanded filenames by calling the * callback function. * * @param[in] pattern A glob pattern. * @param[in] func Identical to ruby_glob_func, except it can raise * exceptions instead of returning opaque state. * @param[in] arg Extra argument passed to func. * @exception rb_eException Can propagate what `func` raises. * @note The language accepted as the pattern is not a regular * expression. It resembles shell's glob. */ void rb_glob(const char *pattern, void (*func)(const char *path, VALUE arg, void *enc), VALUE arg); RBIMPL_ATTR_NONNULL(()) /** * Identical to rb_glob(), except it returns opaque exception states instead of * raising exceptions. * * @param[in] pattern A glob pattern. * @param[in] flags No, you are not allowed to use this. Just pass 0. * @param[in] func A callback function. * @param[in] arg Extra argument passed to func. * @return Return value of `func`. * * @internal * * This function is completely broken by design... Not only is there no sane * way to pass flags, but there also is no sane way to know what a return value * is meant to be. * * Though not a part of our public API, and @shyouhei thinks it's a failure not * to be a public API, the flags can be `FNM_EXTGLOB`, `FNM_DOTMATCH` etc. * Look at dir.c for the list. * * Though not a part of our public API, the return value is in fact an * enum ruby_tag_type. You can see the potential values by looking at * vm_core.h. */ int ruby_glob(const char *pattern, int flags, ruby_glob_func *func, VALUE arg); RBIMPL_ATTR_NONNULL(()) /** * Identical to ruby_glob(), @shyouhei currently suspects. Historically you * had to call this function instead of ruby_glob() if the pattern included * "{x,y,...}" syntax. However since commit 0f63d961169989a7f6dcf7c0487fe29da, * ruby_glob() also supports that syntax. It seems as of writing these two * functions provide basically the same functionality in a different * implementation. Is this analysis right? Correct me! :FIXME: * * @param[in] pattern A glob pattern. * @param[in] flags No, you are not allowed to use this. Just pass 0. * @param[in] func A callback function. * @param[in] arg Extra argument passed to func. * @return Return value of `func`. */ int ruby_brace_glob(const char *pattern, int flags, ruby_glob_func *func, VALUE arg); RBIMPL_SYMBOL_EXPORT_END() #endif /* RBIMPL_GLOB_H */
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