iomenu

interactive text selection menu
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commit 7563651b88d576f9cf06863ab10c9491f9f82d4e
parent 601965c26a8164917e4b817273a5af3c901bc98f
Author: Josuah Demangeonā  ā µ <mail@josuah.net>
Date:   Sun, 19 Mar 2017 20:53:38 +0100

tab int stdin and multiple selection support.

Diffstat:
Miomenu.c | 48++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 44 insertions(+), 4 deletions(-)

diff --git a/iomenu.c b/iomenu.c @@ -22,7 +22,7 @@ static struct termios termios; FILE *tty_fp = NULL; int tty_fd; -static char input[BUFSIZ]; +static char input[BUFSIZ], formatted[BUFSIZ * 8]; static int current = 0, offset = 0, prev = 0, next = 0; static int linec = 0, matchc = 0; static char **linev = NULL, **matchv = NULL; @@ -119,12 +119,48 @@ match_line(char *line, char **tokv, int tokc) } +int +screen_width(char *str) +{ + int len = 0; + + for (int i = 0; str[i]; i++, len++) + if (str[i] == '\t') + len += (len + 7) % 8; + + return len; +} + + +int +format_string(char *dest, char *src, int cols) +{ + int j = 0; + + for (int i = 0; src[i] && j < cols; i++) { + + if (src[i] == '\t') { + for (int t = (j + 7) % 8 + 1; t > 0 && j < cols; t--) + dest[j++] = ' '; + } else { + dest[j++] = src[i]; + } + } + + dest[j] = '\0'; + + return j; +} + + static void print_string(char *str, int current) { + format_string(formatted, str, winsize.ws_col - 2); + fputs(current ? "\033[30;47m" : "", stderr); fputs(opt_lines ? "\033[K " : " ", stderr); - fprintf(stderr, "%s \033[m", str); + fprintf(stderr, "%s \033[m", formatted); } @@ -149,7 +185,7 @@ prev_page(int pos, int cols) { pos -= pos > 0 ? 1 : 0; for (int col = 0; pos > 0; pos--) - if ((col += strlen(matchv[pos]) + 2) > cols) + if ((col += screen_width(matchv[pos]) + 2) > cols) return pos + 1; return pos; } @@ -159,7 +195,7 @@ static int next_page(int pos, int cols) { for (int col = 0; pos < matchc; pos++) - if ((col += strlen(matchv[pos]) + 2) > cols) + if ((col += screen_width(matchv[pos]) + 2) > cols) return pos; return pos; } @@ -341,6 +377,10 @@ input_key(void) filter_lines(); break; + case CONTROL('Y'): + print_selection(); + break; + case CONTROL('J'): case CONTROL('M'): /* enter */ print_selection();