diff options
Diffstat (limited to 'rq.c')
| -rw-r--r-- | rq.c | 123 |
1 files changed, 62 insertions, 61 deletions
@@ -5,13 +5,16 @@ #include <ctype.h> #include <errno.h> #include <fcntl.h> +#include <limits.h> #include <signal.h> +#include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <termios.h> #include <unistd.h> +#include <wchar.h> @@ -115,18 +118,14 @@ static void get_terminal_size(void) { struct winsize winsize; - - if (!caught_sigwinch) - return; - - caught_sigwinch = 0; - - while (ioctl(STDOUT_FILENO, (unsigned long)TIOCGWINSZ, &winsize) < 0) - if (errno != EINTR) - return; - - height = winsize.ws_row; - width = winsize.ws_col; + if (caught_sigwinch) { + caught_sigwinch = 0; + while (ioctl(STDOUT_FILENO, (unsigned long)TIOCGWINSZ, &winsize) < 0) + if (errno != EINTR) + return; + height = winsize.ws_row; + width = winsize.ws_col; + } } @@ -139,7 +138,7 @@ get_terminal_size(void) static long get_word_rate(void) { - char *s, *e; + char *s; long r; errno = 0; @@ -147,26 +146,26 @@ get_word_rate(void) if (!s || !*s || !isdigit(*s)) return DEFAULT_RATE; - r = strtol(s, &e, 10); + r = strtol(s, &s, 10); if (r <= 0) return DEFAULT_RATE; - while (*e == ' ') - e++; - - if (!*e) r *= 1; - else if (!strcasecmp(e, "wpm")) r *= 1; - else if (!strcasecmp(e, "w/m")) r *= 1; - else if (!strcasecmp(e, "/m")) r *= 1; - else if (!strcasecmp(e, "wpmin")) r *= 1; - else if (!strcasecmp(e, "w/min")) r *= 1; - else if (!strcasecmp(e, "/min")) r *= 1; - else if (!strcasecmp(e, "wps")) r *= 60; - else if (!strcasecmp(e, "w/s")) r *= 60; - else if (!strcasecmp(e, "/s")) r *= 60; - else if (!strcasecmp(e, "wpsec")) r *= 60; - else if (!strcasecmp(e, "w/sec")) r *= 60; - else if (!strcasecmp(e, "/sec")) r *= 60; - else if (!strcasecmp(e, "hz")) r *= 60; + while (*s == ' ') + s++; + + if (!*s) r *= 1; + else if (!strcasecmp(s, "wpm")) r *= 1; + else if (!strcasecmp(s, "w/m")) r *= 1; + else if (!strcasecmp(s, "/m")) r *= 1; + else if (!strcasecmp(s, "wpmin")) r *= 1; + else if (!strcasecmp(s, "w/min")) r *= 1; + else if (!strcasecmp(s, "/min")) r *= 1; + else if (!strcasecmp(s, "wps")) r *= 60; + else if (!strcasecmp(s, "w/s")) r *= 60; + else if (!strcasecmp(s, "/s")) r *= 60; + else if (!strcasecmp(s, "wpsec")) r *= 60; + else if (!strcasecmp(s, "w/sec")) r *= 60; + else if (!strcasecmp(s, "/sec")) r *= 60; + else if (!strcasecmp(s, "hz")) r *= 60; else return DEFAULT_RATE; @@ -177,11 +176,6 @@ get_word_rate(void) /** * Count the number of character in a string. * - * Possible improvement: - * Figure out how many columns the terminal is - * likely to used to display the each character, - * and sum it. - * * @param s The string. * @return The number of characters in `s`. */ @@ -189,8 +183,17 @@ static size_t display_len(const char *s) { size_t r = 0; - for (; *s; s++) - r += (((int)*s & 0xC0) != 0x80); + wchar_t wc; + int len, w; + for (; *s; s += len) { + len = mbtowc(&wc, s, SIZE_MAX); + if (len <= 0) + break; + w = wcwidth(wc); + if (w < 0) + break; + r += (size_t)w; + } return r; } @@ -220,38 +223,36 @@ load_file(int fd) /* Load file. */ for (;;) { if (ptr == size) { - size = size ? (size << 1) : (8 << 10); + size = size ? size << 1 : 8 << 10; new = realloc(buffer, size); if (!new) goto fail; buffer = new; } n = read(fd, buffer + ptr, size - ptr); - if (n < 0) { - if (errno != EINTR) - goto fail; - continue; - } else if (n == 0) { - break; + if (n <= 0) { + if (!n) + break; + if (errno == EINTR) + continue; + goto fail; } ptr += (size_t)n; } - if (buffer == NULL) + if (!buffer) return 0; - if (ptr == size) { - new = realloc(buffer, size += 2); - if (!new) - goto fail; - buffer = new; - } + new = realloc(buffer, ptr + 2); + if (!new) + goto fail; + buffer = new; buffer[ptr++] = '\0'; buffer[ptr++] = '\0'; /* Split words. */ size = 0; - for (s = buffer; *s; s = end + 1) { + for (s = buffer; *s; s = &end[1]) { if (word_count == size) { - size = size ? (size << 1) : 512; + size = size ? size << 1 : 512; new = realloc(words, size * sizeof(*words)); if (!new) goto fail; @@ -260,7 +261,7 @@ load_file(int fd) while (isspace(*s)) s++; end = strpbrk(s, " \f\n\r\t\v"); - if (end == NULL) + if (!end) end = strchr(s, '\0'); *end = '\0'; words[word_count].word = s; @@ -277,7 +278,8 @@ load_file(int fd) fail: saved_errno = errno; - free(buffer), buffer = NULL; + free(buffer); + buffer = NULL; errno = saved_errno; return -1; } @@ -381,7 +383,6 @@ int main(int argc, char *argv[]) { long rate = get_word_rate(); - char *file = NULL; int fd = -1, ttyfd = -1, tty_configured = 0; struct termios stty, saved_stty; struct stat _attr; @@ -406,12 +407,12 @@ main(int argc, char *argv[]) goto fail; /* Open file. */ - if (!file || !strcmp(file, "-")) { - fd = STDIN_FILENO; - } else { - fd = open(file, O_RDONLY); + if (argc && strcmp(*argv, "-")) { + fd = open(*argv, O_RDONLY); if (fd < 0) goto fail; + } else { + fd = STDIN_FILENO; } /* Load file. */ |