diff --git a/format.c b/format.c index 251af7df..e09ce423 100644 --- a/format.c +++ b/format.c @@ -1315,7 +1315,7 @@ format_build_modifiers(struct format_tree *ft, const char **s, u_int *count) } /* Now try single character with arguments. */ - if (strchr("mCs=", cp[0]) == NULL) + if (strchr("mCs=p", cp[0]) == NULL) break; c = cp[0]; @@ -1576,15 +1576,15 @@ static int format_replace(struct format_tree *ft, const char *key, size_t keylen, char **buf, size_t *len, size_t *off) { - struct window_pane *wp = ft->wp; - const char *errptr, *copy, *cp, *marker = NULL; - char *copy0, *condition, *found, *new; - char *value, *left, *right; - size_t valuelen; - int modifiers = 0, limit = 0, j; - struct format_modifier *list, *fm, *cmp = NULL, *search = NULL; - struct format_modifier *sub = NULL; - u_int i, count; + struct window_pane *wp = ft->wp; + const char *errptr, *copy, *cp, *marker = NULL; + char *copy0, *condition, *found, *new; + char *value, *left, *right; + size_t valuelen; + int modifiers = 0, limit = 0, width = 0, j; + struct format_modifier *list, *fm, *cmp = NULL, *search = NULL; + struct format_modifier **sub = NULL; + u_int i, count, nsub = 0; /* Make a copy of the key. */ copy = copy0 = xstrndup(key, keylen); @@ -1613,7 +1613,9 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen, case 's': if (fm->argc < 2) break; - sub = fm; + sub = xreallocarray (sub, nsub + 1, + sizeof *sub); + sub[nsub++] = fm; break; case '=': if (fm->argc < 1) @@ -1625,6 +1627,14 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen, if (fm->argc >= 2 && fm->argv[1] != NULL) marker = fm->argv[1]; break; + case 'p': + if (fm->argc < 1) + break; + width = strtonum(fm->argv[0], INT_MIN, INT_MAX, + &errptr); + if (errptr != NULL) + width = 0; + break; case 'l': modifiers |= FORMAT_LITERAL; break; @@ -1825,10 +1835,10 @@ done: } /* Perform substitution if any. */ - if (sub != NULL) { - left = format_expand(ft, sub->argv[0]); - right = format_expand(ft, sub->argv[1]); - new = format_sub(sub, value, left, right); + for (i = 0; i < nsub; i++) { + left = format_expand(ft, sub[i]->argv[0]); + right = format_expand(ft, sub[i]->argv[1]); + new = format_sub(sub[i], value, left, right); format_log(ft, "substitute '%s' to '%s': %s", left, right, new); free(value); value = new; @@ -1859,6 +1869,19 @@ done: format_log(ft, "applied length limit %d: %s", limit, value); } + /* Pad the value if needed. */ + if (width > 0) { + new = utf8_padcstr(value, width); + free(value); + value = new; + format_log(ft, "applied padding width %d: %s", width, value); + } else if (width < 0) { + new = utf8_rpadcstr(value, -width); + free(value); + value = new; + format_log(ft, "applied padding width %d: %s", width, value); + } + /* Expand the buffer and copy in the value. */ valuelen = strlen(value); while (*len - *off < valuelen + 1) { @@ -1871,12 +1894,15 @@ done: format_log(ft, "replaced '%s' with '%s'", copy0, value); free(value); + free(sub); format_free_modifiers(list, count); free(copy0); return (0); fail: format_log(ft, "failed %s", copy0); + + free(sub); format_free_modifiers(list, count); free(copy0); return (-1); diff --git a/tmux.1 b/tmux.1 index eb589e4b..57bbecf8 100644 --- a/tmux.1 +++ b/tmux.1 @@ -4106,6 +4106,12 @@ appended or prepended to the string if the length has been trimmed, for example will append .Ql ... if the pane title is more than five characters. +Similarly, +.Ql p +pads the string to a given width, for example +.Ql #{p10:pane_title} +will result in a width of at least 10 characters. +A positive width pads on the left, a negative on the right. .Pp Prefixing a time variable with .Ql t:\& diff --git a/tmux.h b/tmux.h index 53feefd8..8374c410 100644 --- a/tmux.h +++ b/tmux.h @@ -2640,6 +2640,7 @@ struct utf8_data *utf8_fromcstr(const char *); char *utf8_tocstr(struct utf8_data *); u_int utf8_cstrwidth(const char *); char *utf8_padcstr(const char *, u_int); +char *utf8_rpadcstr(const char *, u_int); int utf8_cstrhas(const char *, const struct utf8_data *); /* osdep-*.c */ diff --git a/utf8.c b/utf8.c index 224aa482..b4e448f7 100644 --- a/utf8.c +++ b/utf8.c @@ -415,7 +415,7 @@ utf8_cstrwidth(const char *s) return (width); } -/* Pad UTF-8 string to width. Caller frees. */ +/* Pad UTF-8 string to width on the left. Caller frees. */ char * utf8_padcstr(const char *s, u_int width) { @@ -436,6 +436,27 @@ utf8_padcstr(const char *s, u_int width) return (out); } +/* Pad UTF-8 string to width on the right. Caller frees. */ +char * +utf8_rpadcstr(const char *s, u_int width) +{ + size_t slen; + char *out; + u_int n, i; + + n = utf8_cstrwidth(s); + if (n >= width) + return (xstrdup(s)); + + slen = strlen(s); + out = xmalloc(slen + 1 + (width - n)); + for (i = 0; i < width - n; i++) + out[i] = ' '; + memcpy(out + i, s, slen); + out[i + slen] = '\0'; + return (out); +} + int utf8_cstrhas(const char *s, const struct utf8_data *ud) {