diff options
Diffstat (limited to 'bb.c')
| -rw-r--r-- | bb.c | 243 |
1 files changed, 121 insertions, 122 deletions
@@ -1,10 +1,10 @@ -/* - * Bitty Browser (bb) - * Copyright 2019 Bruce Hill - * Released under the MIT license - * - * This file contains the main source code of `bb`. - */ +// +// Bitty Browser (bb) +// Copyright 2019 Bruce Hill +// Released under the MIT license +// +// This file contains the main source code of `bb`. +// #include <ctype.h> #include <fcntl.h> @@ -107,9 +107,9 @@ static struct winsize winsize = {0}; static char cmdfilename[PATH_MAX] = {0}; static bb_t *current_bb = NULL; -/* - * Use bb to browse the filesystem. - */ +// +// Use bb to browse the filesystem. +// void bb_browse(bb_t *bb, const char *initial_path) { if (populate_files(bb, initial_path)) @@ -123,10 +123,10 @@ void bb_browse(bb_t *bb, const char *initial_path) run_script(bb, "bbshutdown"); } -/* - * Check the bb command file and run any and all commands that have been - * written to it. - */ +// +// Check the bb command file and run any and all commands that have been +// written to it. +// static void check_cmdfile(bb_t *bb) { FILE *cmdfile = fopen(cmdfilename, "r"); @@ -143,9 +143,9 @@ static void check_cmdfile(bb_t *bb) unlink(cmdfilename); } -/* - * Clean up the terminal before going to the default signal handling behavior. - */ +// +// Clean up the terminal before going to the default signal handling behavior. +// static void cleanup_and_raise(int sig) { cleanup(); @@ -163,9 +163,9 @@ static void cleanup_and_raise(int sig) sigaction(sig, &sa, NULL); } -/* - * Reset the screen and delete the cmdfile - */ +// +// Reset the screen and delete the cmdfile +// static void cleanup(void) { if (cmdfilename[0]) { @@ -179,10 +179,10 @@ static void cleanup(void) } } -/* - * Used for sorting, this function compares files according to the sorting-related options, - * like bb->sort - */ +// +// Used for sorting, this function compares files according to the sorting-related options, +// like bb->sort +// #ifdef __APPLE__ static int compare_files(void *v, const void *v1, const void *v2) #else @@ -204,14 +204,13 @@ static int compare_files(const void *v1, const void *v2, void *v) switch (*sort) { case COL_SELECTED: COMPARE(IS_SELECTED(e1), IS_SELECTED(e2)); break; case COL_NAME: { - /* This sorting method is not identical to strverscmp(). Notably, bb's sort - * will order: [0, 1, 9, 00, 01, 09, 10, 000, 010] instead of strverscmp()'s - * order: [000, 00, 01, 010, 09, 0, 1, 9, 10]. I believe bb's sort is consistent - * with how people want their files grouped: all files padded to n digits - * will be grouped together, and files with the same padding will be sorted - * ordinally. This version also does case-insensitivity by lowercasing words, - * so the following characters come before all letters: [\]^_` - */ + // This sorting method is not identical to strverscmp(). Notably, bb's sort + // will order: [0, 1, 9, 00, 01, 09, 10, 000, 010] instead of strverscmp()'s + // order: [000, 00, 01, 010, 09, 0, 1, 9, 10]. I believe bb's sort is consistent + // with how people want their files grouped: all files padded to n digits + // will be grouped together, and files with the same padding will be sorted + // ordinally. This version also does case-insensitivity by lowercasing words, + // so the following characters come before all letters: [\]^_` const char *n1 = e1->name, *n2 = e2->name; while (*n1 && *n2) { char c1 = tolower(*n1), c2 = tolower(*n2); @@ -246,10 +245,10 @@ static int compare_files(const void *v1, const void *v2, void *v) #undef COMPARE_TIME } -/* - * Wait until the user has pressed a key with an associated key binding and run - * that binding. - */ +// +// Wait until the user has pressed a key with an associated key binding and run +// that binding. +// static void handle_next_key_binding(bb_t *bb) { int key, mouse_x, mouse_y; @@ -309,10 +308,10 @@ static void handle_next_key_binding(bb_t *bb) } } -/* - * Initialize the terminal files for /dev/tty and set up some desired - * attributes like passing Ctrl-c as a key instead of interrupting - */ +// +// Initialize the terminal files for /dev/tty and set up some desired +// attributes like passing Ctrl-c as a key instead of interrupting +// static void init_term(void) { if (tcsetattr(fileno(tty_out), TCSANOW, &bb_termios) == -1) @@ -323,10 +322,10 @@ static void init_term(void) fflush(tty_out); } -/* - * Return whether or not 's' is a simple bb command that doesn't need - * a full shell instance (e.g. "bbcmd cd:.." or "bbcmd move:+1"). - */ +// +// Return whether or not 's' is a simple bb command that doesn't need +// a full shell instance (e.g. "bbcmd cd:.." or "bbcmd move:+1"). +// static int is_simple_bbcmd(const char *s) { if (!s) return 0; @@ -341,12 +340,12 @@ static int is_simple_bbcmd(const char *s) return 1; } -/* - * Load a file's info into an entry_t and return it (if found). - * The returned entry must be free()ed by the caller. - * Warning: this does not deduplicate entries, and it's best if there aren't - * duplicate entries hanging around. - */ +// +// Load a file's info into an entry_t and return it (if found). +// The returned entry must be free()ed by the caller. +// Warning: this does not deduplicate entries, and it's best if there aren't +// duplicate entries hanging around. +// static entry_t* load_entry(bb_t *bb, const char *path) { struct stat linkedstat, filestat; @@ -397,10 +396,10 @@ static entry_t* load_entry(bb_t *bb, const char *path) return entry; } -/* - * Return whether a string matches a command - * e.g. matches_cmd("sel:x", "select:") == 1, matches_cmd("q", "quit") == 1 - */ +// +// Return whether a string matches a command +// e.g. matches_cmd("sel:x", "select:") == 1, matches_cmd("q", "quit") == 1 +// static inline int matches_cmd(const char *str, const char *cmd) { if ((strchr(cmd, ':') == NULL) != (strchr(str, ':') == NULL)) @@ -409,20 +408,20 @@ static inline int matches_cmd(const char *str, const char *cmd) return *str == '\0' || *str == ':'; } -/* - * Memory allocation failures are unrecoverable in bb, so this wrapper just - * prints an error message and exits if that happens. - */ +// +// Memory allocation failures are unrecoverable in bb, so this wrapper just +// prints an error message and exits if that happens. +// static void* memcheck(void *p) { if (!p) err("Allocation failure"); return p; } -/* - * Prepend `root` to relative paths, replace "~" with $HOME. - * The normalized path is stored in `normalized`. - */ +// +// Prepend `root` to relative paths, replace "~" with $HOME. +// The normalized path is stored in `normalized`. +// static char *normalize_path(const char *root, const char *path, char *normalized) { char pbuf[PATH_MAX] = {0}; @@ -443,10 +442,10 @@ static char *normalize_path(const char *root, const char *path, char *normalized return normalized; } -/* - * Remove all the files currently stored in bb->files and if `bb->path` is - * non-NULL, update `bb` with a listing of the files in `path` - */ +// +// Remove all the files currently stored in bb->files and if `bb->path` is +// non-NULL, update `bb` with a listing of the files in `path` +// static int populate_files(bb_t *bb, const char *path) { int samedir = path && strcmp(bb->path, path) == 0; @@ -558,9 +557,9 @@ static int populate_files(bb_t *bb, const char *path) return 0; } -/* - * Print the current key bindings - */ +// +// Print the current key bindings +// static void print_bindings(int fd) { char buf[1000], buf2[1024]; @@ -591,10 +590,10 @@ static void print_bindings(int fd) write(fd, "\n", 1); } -/* - * Run a bb internal command (e.g. "+refresh") and return an indicator of what - * needs to happen next. - */ +// +// Run a bb internal command (e.g. "+refresh") and return an indicator of what +// needs to happen next. +// static void run_bbcmd(bb_t *bb, const char *cmd) { while (*cmd == ' ' || *cmd == '\n') ++cmd; @@ -788,9 +787,9 @@ static void run_bbcmd(bb_t *bb, const char *cmd) } } -/* - * Close the /dev/tty terminals and restore some of the attributes. - */ +// +// Close the /dev/tty terminals and restore some of the attributes. +// static void restore_term(const struct termios *term) { tcsetattr(fileno(tty_out), TCSANOW, term); @@ -798,11 +797,11 @@ static void restore_term(const struct termios *term) fflush(tty_out); } -/* - * Run a shell script with the selected files passed as sequential arguments to - * the script (or pass the cursor file if none are selected). - * Return the exit status of the script. - */ +// +// Run a shell script with the selected files passed as sequential arguments to +// the script (or pass the cursor file if none are selected). +// Return the exit status of the script. +// static int run_script(bb_t *bb, const char *cmd) { proc_t *proc = memcheck(calloc(1, sizeof(proc_t))); @@ -843,18 +842,18 @@ static int run_script(bb_t *bb, const char *cmd) return status; } -/* - * Set the columns displayed by bb. - */ +// +// Set the columns displayed by bb. +// static void set_columns(bb_t *bb, const char *cols) { strncpy(bb->columns, cols, MAX_COLS); setenv("BBCOLUMNS", bb->columns, 1); } -/* - * Set bb's file cursor to the given index (and adjust the scroll as necessary) - */ +// +// Set bb's file cursor to the given index (and adjust the scroll as necessary) +// static void set_cursor(bb_t *bb, int newcur) { int oldcur = bb->cursor; @@ -881,9 +880,9 @@ static void set_cursor(bb_t *bb, int newcur) } } -/* - * Set the glob pattern(s) used by bb. Patterns are ' ' delimited - */ +// +// Set the glob pattern(s) used by bb. Patterns are ' ' delimited +// static void set_globs(bb_t *bb, const char *globs) { free(bb->globpats); @@ -892,9 +891,9 @@ static void set_globs(bb_t *bb, const char *globs) } -/* - * Set whether or not bb should interleave directories and files. - */ +// +// Set whether or not bb should interleave directories and files. +// static void set_interleave(bb_t *bb, int interleave) { bb->interleave_dirs = interleave; @@ -903,9 +902,9 @@ static void set_interleave(bb_t *bb, int interleave) bb->dirty = 1; } -/* - * Set bb's scroll to the given index (and adjust the cursor as necessary) - */ +// +// Set bb's scroll to the given index (and adjust the cursor as necessary) +// static void set_scroll(bb_t *bb, int newscroll) { int delta = newscroll - bb->scroll; @@ -923,9 +922,9 @@ static void set_scroll(bb_t *bb, int newscroll) if (bb->cursor < 0) bb->cursor = 0; } -/* - * Select or deselect a file. - */ +// +// Select or deselect a file. +// static void set_selected(bb_t *bb, entry_t *e, int selected) { if (IS_SELECTED(e) == selected) return; @@ -943,9 +942,9 @@ static void set_selected(bb_t *bb, entry_t *e, int selected) } } -/* - * Set the sorting method used by bb to display files. - */ +// +// Set the sorting method used by bb to display files. +// static void set_sort(bb_t *bb, const char *sort) { char sortbuf[strlen(sort)+1]; @@ -965,9 +964,9 @@ static void set_sort(bb_t *bb, const char *sort) setenv("BBSORT", bb->sort, 1); } -/* - * Set the xwindow title property to: bb - current path - */ +// +// Set the xwindow title property to: bb - current path +// static void set_title(bb_t *bb) { char *home = getenv("HOME"); @@ -977,10 +976,10 @@ static void set_title(bb_t *bb) fprintf(tty_out, "\033]2;"BB_NAME": %s\007", bb->path); } -/* - * If the given entry is not viewed or selected, remove it from the - * hash, free it, and return 1. - */ +// +// If the given entry is not viewed or selected, remove it from the +// hash, free it, and return 1. +// static int try_free_entry(entry_t *e) { if (IS_SELECTED(e) || IS_VIEWED(e) || !IS_LOADED(e)) return 0; @@ -989,9 +988,9 @@ static int try_free_entry(entry_t *e) return 1; } -/* - * Sort the files in bb according to bb's settings. - */ +// +// Sort the files in bb according to bb's settings. +// static void sort_files(bb_t *bb) { #ifdef __APPLE__ @@ -1004,10 +1003,10 @@ static void sort_files(bb_t *bb) bb->dirty = 1; } -/* - * Trim trailing whitespace by inserting '\0' and return a pointer to after the - * first non-whitespace char - */ +// +// Trim trailing whitespace by inserting '\0' and return a pointer to after the +// first non-whitespace char +// static char *trim(char *s) { if (!s) return NULL; @@ -1018,18 +1017,18 @@ static char *trim(char *s) return s; } -/* - * Hanlder for SIGWINCH events - */ +// +// Hanlder for SIGWINCH events +// static void update_term_size(int sig) { (void)sig; ioctl(STDIN_FILENO, TIOCGWINSZ, &winsize); } -/* - * Wait for a process to either suspend or exit and return the status. - */ +// +// Wait for a process to either suspend or exit and return the status. +// static int wait_for_process(proc_t **proc) { tcsetpgrp(fileno(tty_out), (*proc)->pid); |