diff options
Diffstat (limited to 'chared.c')
| -rw-r--r-- | chared.c | 67 |
1 files changed, 65 insertions, 2 deletions
@@ -1,4 +1,4 @@ -/* $NetBSD: chared.c,v 1.59 2019/07/23 10:18:52 christos Exp $ */ +/* $NetBSD: chared.c,v 1.62 2022/02/08 21:13:22 rillig Exp $ */ /*- * Copyright (c) 1992, 1993 @@ -37,7 +37,7 @@ #if 0 static char sccsid[] = "@(#)chared.c 8.1 (Berkeley) 6/4/93"; #else -__RCSID("$NetBSD: chared.c,v 1.59 2019/07/23 10:18:52 christos Exp $"); +__RCSID("$NetBSD: chared.c,v 1.62 2022/02/08 21:13:22 rillig Exp $"); #endif #endif /* not lint && not SCCSID */ @@ -624,6 +624,69 @@ el_deletestr(EditLine *el, int n) el->el_line.cursor = el->el_line.buffer; } +/* el_deletestr1(): + * Delete characters between start and end + */ +int +el_deletestr1(EditLine *el, int start, int end) +{ + size_t line_length, len; + wchar_t *p1, *p2; + + if (end <= start) + return 0; + + line_length = (size_t)(el->el_line.lastchar - el->el_line.buffer); + + if (start >= (int)line_length || end >= (int)line_length) + return 0; + + len = (size_t)(end - start); + if (len > line_length - (size_t)end) + len = line_length - (size_t)end; + + p1 = el->el_line.buffer + start; + p2 = el->el_line.buffer + end; + for (size_t i = 0; i < len; i++) { + *p1++ = *p2++; + el->el_line.lastchar--; + } + + if (el->el_line.cursor < el->el_line.buffer) + el->el_line.cursor = el->el_line.buffer; + + return end - start; +} + +/* el_wreplacestr(): + * Replace the contents of the line with the provided string + */ +int +el_wreplacestr(EditLine *el, const wchar_t *s) +{ + size_t len; + wchar_t * p; + + if (s == NULL || (len = wcslen(s)) == 0) + return -1; + + if (el->el_line.buffer + len >= el->el_line.limit) { + if (!ch_enlargebufs(el, len)) + return -1; + } + + p = el->el_line.buffer; + for (size_t i = 0; i < len; i++) + *p++ = *s++; + + el->el_line.buffer[len] = '\0'; + el->el_line.lastchar = el->el_line.buffer + len; + if (el->el_line.cursor > el->el_line.lastchar) + el->el_line.cursor = el->el_line.lastchar; + + return 0; +} + /* el_cursor(): * Move the cursor to the left or the right of the current position */ |